Reinforcing bar binding machine
11225344 · 2022-01-18
Assignee
Inventors
Cpc classification
International classification
B65B13/02
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A reinforcing bar bending machine detachably mounts a wire reel thereto, feeds a wire from the mounted wire reel to a guide part provided at a tip portion of a binding machine main body, curls the wire at the guide part, feeds the wire around reinforcing bars to wind around reinforcing bars, cuts the wire with a wire cutting mechanism, and twists the wound wire to bind the reinforcing bars. The wire cutting mechanism is a cutter including a moveable blade configured to slide or swing to a fixed blade or to rotate inside the fixed blade and to cut the wire. The guide part is provided with a holding device to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade. The holding device bends and holds the cut end portion-side of the cut and separated wire.
Claims
1. A reinforcing bar binding machine which is configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, bind the wire around reinforcing bars, comprising: a wire cutting mechanism which cuts the wire and which comprises a cutter including a fixed blade and a moveable blade, a guide part positioned at a tip portion of the reinforcing bar binding machine and which guides and curls the wire, the guide part including a holding device which is configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and wherein the holding device includes a holding member which is configured to press the cut end portion-side of the wire separated by the moveable blade toward a side surface of a wire guide passage.
2. The reinforcing bar binding machine according to claim 1, wherein the fixed blade includes a wire penetration hole which extends in a feeding direction of the wire, and the moveable blade is configured to slide or swing to the fixed blade to cut the wire, and wherein the holding member comprises a pressing part positioned on a downstream side of the moveable blade with respect to the feeding direction, and the pressing part is configured to press the cut end portion-side of the cut and separated wire toward the side surface of the wire guide passage.
3. The reinforcing bar binding machine according to claim 2, wherein the pressing part is movable and presses and holds the cut end portion-side of the cut and separated wire against a pressing projection provided on the side surface of the wire guide passage.
4. The reinforcing bar binding machine according to claim 1, wherein the fixed blade includes a wire penetration hole which extends in a feeding direction of the wire, and the moveable blade is rotatable around the fixed blade, and wherein the holding member is coupled to the moveable blade and a link mechanism, and the holding member is configured to press the cut end portion-side of the wire separated by the moveable blade toward the side surface of the wire guide passage.
5. The reinforcing bar binding machine according to claim 4, wherein the holding member comprises a pressing part which is movable and which presses and holds the cut end portion-side of the cut and separated wire against the side surface of the wire guide passage.
6. The reinforcing bar binding machine according to claim 1, wherein the moveable blade includes a wire penetration hole which extends in a feeding direction of the wire, and the fixed blade is configured to rotatably accommodate the moveable blade, and wherein the holding member is coupled to the moveable blade and a link mechanism, and the holding member is configured to press the cut end portion-side of the wire cut and separated by the moveable blade toward the side surface of the wire guide passage.
7. The reinforcing bar binding machine according to claim 6, wherein the holding member comprises a pressing part which is movable and which presses and holds the cut end portion-side of the cut and separated wire against the side surface of the wire guide passage.
8. The reinforcing bar binding machine according to claim 1, wherein the holding member is coupled to a driving part of a binding machine main body by a link mechanism, and the holding member is configured to press the cut end portion-side of the wire separated by the moveable blade toward the side surface of the wire guide passage.
9. The reinforcing bar binding machine according to claim 8, wherein the holding member comprises a pressing part which is movable and which presses and holds the cut end portion-side of the cut and separated wire against the side surface of the wire guide passage.
10. The reinforcing bar binding machine according to claim 1, wherein the holding member is connected to a link mechanism which moves the holding member to press against the cut end portion-side of the wire.
11. The reinforcing bar binding machine according to claim 10, wherein the link mechanism is coupled to both the movable blade and the holding member.
12. The reinforcing bar binding machine according to claim 11, wherein the holding member is positioned downstream from the cutter with respect to a feeding direction of the wire.
13. The reinforcing bar binding machine according to claim 1, wherein the holding member is positioned downstream from the cutter with respect to a feeding direction of the wire.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
(20) Hereinafter, the reinforcing bar binding machine will be described in detail. As shown in
(21) The guide part 6 is provided with a gently curved guide frame 13. As shown in
(22) As shown in
(23) The fixed blade 32 is formed with a wire penetration hole 32a through which the wire 5 passes in a feeding direction of the wire 5. One end of the wire penetration hole 32a opens towards a tip 8b of the guide component (guide pipe) 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 32a is a wire entry opening 32c, and the other end-side opening of the wire penetration hole 32a is a wire exit opening 32d.
(24) The wire cutting mechanism 31 is configured to move downwards (from an outer side towards an inner side of a curve of the wire) the moveable blade 33 through the link mechanism 37 by the driving lever 16, to enable one surface 33a of the moveable blade 33 to slide downwards along a surface 32e of the wire exit opening 32d-side of the wire penetration hole 32a of the fixed blade 32, and to enable a lower end edge of the one surface 33a of the moveable blade 33 to cut the wire 5 having passed through the wire penetration hole 32a.
(25) The wire cutting mechanism of the reinforcing bar binding machine is also used as a rotary cutter of a rotation-type cutting mechanism, in addition to the slide cutter of the sliding-type cutting mechanism. As shown in
(26) The circular shaft-shaped moveable blade 52 is formed with a wire penetration hole 52a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 52a opens towards the tip 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 52a is a wire entry opening 52b, and the other end-side opening of the wire penetration hole 52a is a wire exit opening 52c. Also, the fixed blade 53 is formed with a wire insertion penetration hole 53a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 53a opens towards the wire exit opening 52c of the wire penetration hole 52a of the moveable blade 52, and the other end opens towards the curl guide 12. The one end-side opening of the wire insertion penetration hole 53a of the fixed blade 53 is a wire entry opening 53b, and the other end-side opening of the wire insertion penetration hole 53a is a wire discharge opening 53c.
(27) The wire cutting mechanism 51 is configured to rotate the moveable blade 52 in a counterclockwise direction by the driving lever 16, to enable a surface of the wire exit opening 52c-side of the moveable blade 52 to slide upwards along a surface of the wire entry opening 53b-side of the fixed blade 53, and to enable a lower end edge of the wire exit opening 52c of the moveable blade 52 to cut the wire 5 having passed through the wire penetration hole 52a.
(28) The wire cutting mechanism of the reinforcing bar binding machine may have a configuration where the fixed blade and the moveable blade of the wire cutting mechanism may be reversed as regards the configurations thereof in the rotary cutter of the rotation-type cutting mechanism. That is, the wire cutting mechanism 51 may be configured as a rotary cutter having a circular shaft-shaped fixed blade 52 fixed to the guide frame 13, a moveable blade 53 provided to be rotatable around the fixed blade 52 and a driving lever 16 configured to rotate the moveable blade 53.
(29) In this case, the circular shaft-shaped fixed blade 52 is formed with a wire penetration hole 52a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 52a opens towards the tip 8b of the guide component 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 52a is a wire entry opening 52b, and the other end-side opening of the wire penetration hole 52a is a wire exit opening 52c. Also, the moveable blade 53 is formed with a wire insertion penetration hole 53a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 53a opens towards the wire exit opening 52c of the wire penetration hole 52a of the fixed blade 52, and the other end opens towards the curl guide 12. The one end-side opening of the wire insertion penetration hole 53a of the moveable blade 53 is a wire entry opening 53b, and the other end-side opening of the wire insertion penetration hole 53a is a wire discharge opening 53c.
(30) The wire cutting mechanism 51 is configured to rotate the moveable blade 53 in a counterclockwise direction by the driving lever 16, to enable a surface of the wire entry opening 53b-side of the moveable blade 53 to slide upwards along a surface of the wire exit opening 52c-side of the fixed blade 52, and to enable a lower end edge of the wire entry opening 53b of the moveable blade 53 to cut the wire 5 having passed through the wire penetration hole 52a.
(31) As shown in
(32) The binding machine main body 2 is provided with a wire twisting device configured to twist the wire 5 wound in a loop shape around the reinforcing bars and to bind the reinforcing bars. The wire twisting device is configured to advance a sleeve, which is pivotally secured to open or close a pair of hooks provided for a P part shown in
(33) In this way, the reinforcing bar binding machine 1 is configured to mount the wire reel, around which the wire 5 for binding reinforcing bars is wound, to the accommodation chamber 3 provided for the binding machine main body 2, to rotate the wire reel, as the trigger 4 is pulled, to feed the wire 5 to the guide part 6 provided at the tip portion of the binding machine main body 2, to curl the wire 5 at the guide recess 20 of the curl guide 12 of the guide part 6, to feed out the wire around the reinforcing bars 7 arranged at an inner side of the guide part 6 so that the wire is wound around the reinforcing bars, to cut the end-side of the wire 5, and to twist the wound part to thus bind the reinforcing bars 7.
(34) Also, as shown in
(35) Also, a third guide member 25 serving as a third curling guide member is provided inside a tip portion of the curl guide 12. The third guide member 25 is attached to protrude more inwardly than a guide surface 21 of the curl guide 12. Therefore, the bending outer surface of the wire 5 fed out along the guide recess 20 of the curl guide 12 is fed downwards with contacting the third guide member 25. Also, the first and third guide members 23, 25 are preferably made of a high hardness material such as carbide pins (cemented carbide pins or ceramic pins).
(36) As described above, the wire fed out from the guide component (guide pipe) 8 is contacted to the first guide member 23 arranged at the tip 8b-side of the guide component (guide pipe) 8 or the notched upper part of the guide component (guide pipe) 8, passes through the wire cutting mechanism 31 (or 51), is fed out along the inner surface of the curl guide 12 and is contacted to the third guide member 25, so that the wire 5 is strongly bent. In this way, the wire 5 is contacted to the first and third guide members 23, 25 of high hardness.
(37) According to the reinforcing bar binding machine 1, when cutting the wire 5 by the wire cutting mechanism 31; 51, the moveable blade 33; 53 slides relative to the fixed blade 32; 52, so that the wire is cut. However, since the wire 5 is supported with a cantilever of the fixed blade 32; 52, the wire 5 of the free end-side is bent in a cutting direction of the moveable blade 33; 53 upon the cutting, so that the wire may not be cut. Also, the wire 5 is bent and sandwiched between the moveable blade 33; 53 and the fixed blade 32; 52, so that the problems such as the damages of the moveable blade 33; 53 and fixed blade 32; 52 may be caused in the wire cutting mechanism 31; 51. Also, since the wire 5 is supported with the cantilever of the fixed blade 32; 52, the wire of the free end-side is applied with load in the cutting direction of the moveable blade 33; 53 upon the cutting, so that the wire is cut with being deformed. Therefore, the force beyond the load necessary for the cutting is required. For this reason, the durability of the moveable blade 33; 53 is degraded and the cutting performance of the moveable blade 33; 53 is deteriorated due to the wear.
(38) Therefore, the reinforcing bar binding machine 1 is provided with a support member configured to support the other side of the wire cutting part upon the wire cutting with one side of the wire cutting part being supported with the fixed blade. Thereby, when cutting the wire by the wire cutting mechanism, both sides of the wire cutting part are supported with the fixed blade and the support member. As a result, it is possible to remove the causes of the cutting defect, to prevent the problems from occurring in the wire cutting mechanism, to improve the durability of the wire cutting mechanism, to keep the cutting performance of the moveable blade and to securely and smoothly perform the cutting operation.
(39) A first illustrative embodiment of the guide part 6 is described. As shown in
(40) The fixed blade 32 is formed with the wire penetration hole 32a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 32a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 32a is the wire entry opening 32c, and the other end-side opening of the wire penetration hole 32a is the wire exit opening 32d.
(41) The wire cutting mechanism 31 is configured to move upwards (from an inner side towards an outer side of a curve of the wire) the moveable blade 33 by the driving lever 16, to enable one surface 33a of the moveable blade 33 to slide upwards along the surface 32e of the wire exit opening 32d-side of the wire penetration hole 32a of the fixed blade 32, and to enable an upper end edge of the one surface 33a of the moveable blade 33 to cut the wire 5 having passed through the wire penetration hole 32a.
(42) The moveable blade 33 is configured to push one side 5c of a cut end portion (hereinafter, referred to as ‘termination portion’) 5b-side of the cut and separated wire 5 in a cutting direction (upward direction). An upper part of the other surface 33b of the moveable blade 33 is formed with a bending projection 34 having a substantially triangular shape. The bending projection 34 has a vertical surface 34a formed by extending the other surface 33b and an inclined surface 34b inclined downwards from a tip portion of the vertical surface 34a towards the fixed blade 32. The bending projection 34 is formed at an upper end of the moveable blade 33 and configures a bending part of a holding device configured to bend and hold the one side 5c of the termination portion 5b-side of the cut wire 5. The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the tip portion of the bending projection 34 of the moveable blade 33 is contacted.
(43) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, when the wire cutting mechanism 31 operates to move the moveable blade 33 upwards, the tip portion of the bending projection 34 is engaged in the vicinity of the termination portion 5b of the wire 5 to push up and bend the wire 5 before the cutting and then the wire 5 is cut by the upper end edge of the one surface 33a.
(44) The moveable blade 33 is stopped at the cutting position after the cutting. The one side 5c of the termination portion 5b-side of the wire 5 is bent by the tip portion of the bending projection 34, is hooked at the tip portion of the bending projection 34 and is held with the wire 5 being engaged with the inclined surface 34b from the termination portion 5b to the one side 5c of the termination portion 5b. A start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. The moveable blade 33 is configured to also serve as the bending member just by providing the bending projection 34, so that a separate member for bending is not required. Also, since it is possible to bend and hold the termination portion 5b of the wire 5 by the series of the wire cutting operations, a special operation is not required.
(45) After binding the reinforcing bars, the moveable blade 33 is returned to the original position before the cutting. Therefore, the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(46) In the first illustrative embodiment, the vertical sliding-type wire cutting mechanism 31 has been described. However, as shown in
(47) A third illustrative embodiment of the guide part 6 is described. As shown in
(48) The circular shaft-shaped moveable blade 52 is formed with the wire penetration hole 52a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 52a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 52a is the wire entry opening 52b, and the other end-side opening of the wire penetration hole 52a is the wire exit opening 52c. Also, the fixed blade 53 is formed with the wire insertion penetration hole 53a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 53a opens towards the tip portion 8b of the guide pipe 8, and the other end of the wire insertion penetration hole 53a opens towards the wire entry opening 52b of the wire penetration hole 52a of the moveable blade 52. The one end-side opening of the wire insertion penetration hole 53a is the wire entry opening 53b, and the other end-side opening of the wire insertion penetration hole 53a is the wire discharge opening 53c.
(49) The wire cutting mechanism 51 is configured to rotate the moveable blade 52 in a counterclockwise direction by the driving lever 16, to enable a surface of the wire entry opening 52b-side of the moveable blade 52 to slide downwards along a surface of the wire discharge opening 53c-side of the fixed blade 53, and to enable an upper end edge 52d of the wire entry opening 52b of the moveable blade 52 to cut the wire 5 having passed through the wire penetration hole 52a.
(50) The moveable blade 52 is configured to cut the wire 5, and to push and bend one side 5c of a cut end portion (hereinafter, referred to as ‘termination portion’) 5b-side of the cut and separated wire 5 in a counter-cutting direction (upward direction) by a lower end edge 52e of the wire exit opening 52c of the wire penetration hole 52a. Therefore, according to the reinforcing bar binding machine 1, the lower end edge 52e of the wire exit opening 52c of the wire penetration hole 52a of the moveable blade 52 is configured to bend and hold the one side 5c of the termination portion 5b-side after cutting the wire 5. The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the lower end edge 52e of the moveable blade 52 is contacted.
(51) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, the wire cutting mechanism 31 operates to rotate the moveable blade 52, so that the upper end edge 52d of the wire entry opening 52b of the wire penetration hole 52a of the moveable blade 52 cuts the wire 5. Simultaneously with the cutting of the wire 5, the lower end edge 52e of the wire exit opening 52c of the wire penetration hole 52a of the moveable blade 52 pushes and bends the one side 5c of the termination portion 5b-side of the cut wire 5 in the cutting direction (upward direction). The moveable blade 52 is stopped at the cutting position after the cutting. The one side 5c of the termination portion 5b-side of the wire 5 is bent by the lower end edge 52e of the wire exit opening 52c of the wire penetration hole 52a of the moveable blade 52, and is hooked and held at the lower end edge 52e.
(52) The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. Upon the cutting of the wire 5, the termination portion 5b of the wire 5 is located in the wire penetration hole 52a of the moveable blade 52 and the wire is bent with the lower end edge 52e of the moveable blade 52. Therefore, a bending length corresponding to the longitudinal direction of the wire penetration hole 52a is secured, so that the wire 5 can be securely hooked. Also, since it is possible to bend and hold the termination portion 5b of the wire 5 by the series of the wire cutting operations, a special operation is not required.
(53) After binding the reinforcing bars, the moveable blade 52 is returned to the original position before the cutting. Therefore, the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(54) A fourth illustrative embodiment of the guide part 6 is described. As shown in FIG. 8, when a feeding length of the wire 5 reaches a predetermined amount, a wire cutting mechanism 61 cuts the wire 5. That is, the wire cutting mechanism 61 is a slide cutter having a fixed blade 62 fixed to the guide frame 13, a moveable blade 63 configured to slide to the fixed blade 62 and to cut the wire 5, and the driving lever 16 configured to move the moveable blade 63.
(55) The fixed blade 62 is formed with a wire penetration hole 62a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 62a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 62a is a wire entry opening 62b, and the other end-side opening of the wire penetration hole 62a is a wire exit opening 62c.
(56) The wire cutting mechanism 61 is configured to move downwards (from an outer side towards an inner side of a curve of the wire) the moveable blade 63 by the driving lever 16, to enable one surface 63a of the moveable blade 63 to slide downwards along a surface of the wire exit opening 62c-side of the wire penetration hole 62a of the fixed blade 62, and to enable a lower end edge of the one surface 63a of the moveable blade 63 to cut the wire 5 having passed through the wire penetration hole 62a.
(57) The moveable blade 63 is configured to push the cut end portion (hereinafter, referred to as ‘termination portion’) 5b-side of the cut and separated wire 5 in a cutting direction (downward direction) by a lower end portion 63c. The guide frame 13 is provided with a guide member 65 serving as a contact part configured to contact and bend one side 5c of the termination portion 5b-side of the wire 5 pushed by the moveable blade 63. The one side 5c of the termination portion 5b-side of the wire 5 pushed by the lower end portion 63c of the moveable blade 63 is contacted to the guide member 65 and is thus bent. Therefore, the reinforcing bar binding machine 1 is configured to sandwich and hold the one side 5c of the termination portion 5b-side of the cut wire 5 by the lower end portion 63c of the moveable blade 63 and the guide member 65. The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the guide member 65 is contacted.
(58) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, when the wire cutting mechanism 61 operates to move the moveable blade 63 downwards to cut the wire, the lower end portion 63c pushes the termination portion 5b of the cut wire 5 in the cutting direction (downward direction) and the one side 5c of the termination portion 5b-side of the wire 5 is contacted to the guide member 65 and is thus bent.
(59) The moveable blade 63 is stopped at the cutting position after the cutting. The one side 5c of the termination portion 5b-side of the wire 5 is sandwiched by the lower end portion 63c of the moveable blade 63 and the guide member 65. Thereby, the one side 5c of the termination portion 5b-side of the wire 5 is held by the lower end portion 63c of the moveable blade 63 and the guide member 65. The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. It is possible to bend the wire 5 and to hold the termination portion 5b of the wire by using the operation of cutting the wire 5 by the moveable blade 63 and the guide member 65.
(60) After binding the reinforcing bars, the moveable blade 63 is returned to the original position before the cutting. Therefore, the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(61) In the fourth illustrative embodiment, the vertical sliding-type wire cutting mechanism 61 has been described. However, as shown in
(62) A sixth illustrative embodiment of the guide part 6 is described. As shown in FIG. 10, when a feeding length of the wire 5 reaches a predetermined amount, a wire cutting mechanism 81 cuts the wire 5. That is, the wire cutting mechanism 81 is a slide cutter having a fixed blade 82 fixed to the guide frame 13, a moveable blade 83 configured to slide to the fixed blade 82 and to cut the wire 5, and the driving lever 16 configured to move the moveable blade 83.
(63) The fixed blade 82 is formed with a wire penetration hole 82a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 82a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 82a is a wire entry opening 82b, and the other end-side opening of the wire penetration hole 82a is a wire exit opening 82c.
(64) The wire cutting mechanism 81 is configured to move downwards (from an outer side towards an inner side of a curve of the wire) the moveable blade 83 by the driving lever 16, to enable one surface 83a of the moveable blade 83 to slide downwards along a surface of the wire exit opening 82c-side of the wire penetration hole 82a of the fixed blade 82, and to enable a lower end edge of the one surface 83a of the moveable blade 83 to cut the wire 5 having passed through the wire penetration hole 82a.
(65) The moveable blade 83 is configured to push one side 5c of the cut end portion (hereinafter, referred to as ‘termination portion’) 5b-side of the cut and separated wire 5 in a cutting direction (downward direction) by a lower end portion 83c. A lower part of the other surface 83b of the moveable blade 83 is formed with a bending projection 84 having a substantially triangular shape. The bending projection 84 has a vertical surface 84a formed by extending the other surface 83b and an inclined surface 84b inclined upwards from a tip portion of the vertical surface 84a towards the fixed blade 82.
(66) The guide frame 13 is provided with a guide member 85 of a contact part, which is configured to be contacted and bent to one side 5c of the termination portion 5b-side of the wire 5 pushed and bent by the bending projection 84 of the moveable blade 83. Therefore, the reinforcing bar binding machine 1 is configured to hold the one side 5c of the bent termination portion 5b-side after the wire 5 is cut, by the guide member 85. The bending projection 84 is formed at the lower end portion 83c of the moveable blade 83 and configures a bending part of a holding device configured to hold the one side 5c of the termination portion 5b-side of the wire 5. The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the tip portion of the bending projection 84 of the moveable blade 83 is contacted.
(67) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, when the wire cutting mechanism 81 operates to move the moveable blade 83 downwards, as shown in
(68) The moveable blade 83 is returned to its original position and is stopped immediately after the cutting. Since the one side 5c of the termination portion 5b-side of the wire 5 is bent, it is hooked and held at the guide member 85. The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. Also, since the moveable blade 83 does not directly hold the termination portion 5b of the wire 5, the load for holding is not applied to the moveable blade 83, so that the durability is improved.
(69) After binding the reinforcing bars, since the one side 5c of the termination portion 5b-side of the wire is simply hooked and held at the guide member 85, it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(70) A seventh illustrative embodiment of the guide part 6 is described. As shown in
(71) The circular shaft-shaped moveable blade 92 is formed with a wire penetration hole 92a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 92a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 92a is a wire entry opening 92b, and the other end-side opening of the wire penetration hole 92a is a wire exit opening 92c. Also, the fixed blade 93 is formed with a wire insertion penetration hole 93a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 93a opens towards the guide pipe 8, and the other end of the wire insertion penetration hole 93a opens towards the wire entry opening 92b of the wire penetration hole 92a of the moveable blade 92. The one end-side opening of the wire insertion penetration hole 93a is a wire entry opening 93b, and the other end-side opening of the wire insertion penetration hole 93a is a wire discharge opening 93c.
(72) The wire cutting mechanism 91 is configured to rotate the moveable blade 92 in a counterclockwise direction by the driving lever 16, to enable a surface of the wire entry opening 92b-side of the moveable blade 92 to slide downwards along a surface of the wire discharge opening 93c-side of the fixed blade 93, and to enable an upper end edge 92d of the wire entry opening 92b of the moveable blade 92 to cut the wire 5 having passed through the wire penetration hole 92a.
(73) The moveable blade 92 is configured to cut the wire 5, and to push and bend one side 5c of a cut end portion (hereinafter, referred to as ‘termination portion’) 5b-side of the cut and separated wire 5 in a counter-cutting direction (upward direction) and to form a bent part by a lower end edge 92e of the wire exit opening 92c of the wire penetration hole 92a. The guide frame 13 is provided with a guide member 95 serving as a contact part configured to contact the one side 5c of the termination portion 5b-side of the wire 5 pushed with the moveable blade 92. Therefore, according to the reinforcing bar binding machine 1, the one side 5c of the termination portion 5b-side serving as the bent part after the wire 5 is cut is sandwiched and held by the lower end edge 92e of the wire penetration hole 92a of the moveable blade 92 and the guide member 95. The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the lower end edge 92e of the wire penetration hole 92a of the moveable blade 92 is contacted.
(74) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, the wire cutting mechanism 91 operates to rotate the moveable blade 92, so that the upper end edge 92d of the wire entry opening 92b of the wire penetration hole 92a of the moveable blade 92 cuts the wire 5. Simultaneously with the cutting, the lower end edge 92e of the wire exit opening 92c of the wire penetration hole 92a of the moveable blade 92 pushes the one side 5c of the termination portion 5b-side of the cut wire 5 in the cutting direction (upward direction), so that the one side 5c of the termination portion 5b-side of the wire 5 is sandwiched by the lower end edge 92e of the wire penetration hole 92a of the moveable blade 92 and the guide member 95. The moveable blade 92 is stopped at the cutting position after the cutting. Thereby, the one side 5c of the termination portion 5b-side of the wire 5 is held by the lower end edge 92e of the wire exit opening 92c of the moveable blade 92 and the guide member 95
(75) The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. Since the termination portion 5b of the wire 5 is fitted with the moveable edge 92 and the guide member 95 by using the operation of the moveable blade 92 upon the cutting of the wire 5, it can be securely held.
(76) After binding the reinforcing bars, the moveable blade 92 is returned to the original position before the cutting. Therefore, the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(77) An eighth illustrative embodiment of the guide part 6 is described. As shown in
(78) The circular shaft-shaped fixed blade 102 is formed with a wire penetration hole 102a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 102a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 102a is a wire entry opening 102b, and the other end-side opening of the wire penetration hole 102a is a wire exit opening 102c. Also, the moveable blade 103 is formed with a wire insertion penetration hole 103a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 103a opens towards the wire exit opening 102c of the wire penetration hole 102a of the fixed blade 102, and the other end opens towards the curl guide 12. The one end-side opening of the wire insertion penetration hole 103a of the moveable blade 103 is a wire entry opening 103b, and the other end-side opening of the wire insertion penetration hole 103a is a wire discharge opening 103c.
(79) The wire cutting mechanism 101 is configured to rotate the moveable blade 103 in a counterclockwise direction by the driving lever 16, to enable a surface of the wire entry opening 103b-side of the moveable blade 103 to slide upwards along a surface of the wire exit opening 102c-side of the fixed blade 102, and to enable a lower end edge of the wire entry opening 103b of the moveable blade 103 to cut the wire 5 having passed through the wire penetration hole 102a.
(80) The moveable blade 103 is configured to cut the wire 5, and to push one side 5c of a cut end portion (hereinafter, referred to as ‘termination portion’) 5b-side of the cut and separated wire 5 in a cutting direction (upward direction) by a lower end edge 103d of the wire discharge opening 103c of the wire insertion penetration hole 103a. The guide frame 13 is provided with a guide member 105 configured to contact the one side 5c of the termination portion 5b-side of the wire 5 pushed with the moveable blade 103. Therefore, according to the reinforcing bar binding machine 1, after the wire 5 is cut, the one side 5c of the termination portion 5b-side is held by the lower end edge 103d of the wire insertion penetration hole 103a of the moveable blade 103 and the guide member 105. The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the lower end edge 92e of the wire insertion penetration hole 103a of the moveable blade 103 is contacted.
(81) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, the wire cutting mechanism 31 operates to rotate the moveable blade 103 upwards, so that the lower end edge of the wire entry opening 103b of the moveable blade 103 cuts the wire 5. Simultaneously with the cutting, the lower end edge 103d of the wire discharge opening 103e of the moveable blade 103 pushes up the one side 5c of the termination portion 5b-side of the cut wire 5 in the cutting direction (upward direction), so that the one side 5c of the termination portion 5b of the wire 5 is sandwiched by the lower end edge 103d of the wire discharge opening 103c of the moveable blade 103 and the guide member 105. The moveable blade 103 is stopped at the cutting position after the cutting. Thereby, the one side 5c of the termination portion 5b-side of the wire 5 is held by the moveable blade 103 and the guide member 105.
(82) The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. Since the termination portion 5b of the wire 5 is fitted with the moveable edge 92 and the guide member 105 by using the operation of the moveable blade 103 upon the cutting of the wire 5, it can be securely held. In the fourth to eights illustrative embodiments, the termination portion 5b of the wire 5 is held using the guide member serving as the contact part. Since the guide member can be arranged using a space of the guide frame 13 and may be made to be smaller that the wire cutting mechanism and the other members, the arrangement can be easily adjusted and the maintenance ability is also high.
(83) After binding the reinforcing bars, the moveable blade 103 is returned to the original position before the cutting. Therefore, the holding state of the one side 5c of the termination portion 5b of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(84) In the eighth illustrative embodiment, the wire cutting mechanism 101 has the circular shaft-shaped fixed blade 102 and the moveable blade 103 provided to be rotatable around the fixed blade 102. However, a wire cutting mechanism is also possible which includes an internal moveable blade 102 and an external moveable blade 103 configured to rotatably accommodate the internal moveable blade 102 and is configured to rotate the internal moveable blade 102 and external moveable blade 103 to cut the wire 5.
(85) A ninth illustrative embodiment of the guide part 6 is described. As shown in
(86) The fixed blade 112 is formed with a wire penetration hole 112a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 112a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 112a is a wire entry opening 112b, and the other end-side opening of the wire penetration hole 112a is a wire exit opening 112c.
(87) The wire cutting mechanism 111 is configured to move upwards (from an inner side towards an outer side of a curve of the wire) the moveable blade 113 by the driving lever 16, to enable one surface 113a of the moveable blade 113 to slide upwards along a surface of the wire exit opening 112c-side of the wire penetration hole 112a of the fixed blade 112, and to enable an upper end edge of the one surface 113a of the moveable blade 113 to cut the wire 5 having passed through the wire penetration hole 112a.
(88) The moveable blade 113 is provided with a pressing member 115 configured to push one side 5c of the termination portion 5b-side of the cut wire 5 in a cutting direction (upward direction). The pressing member 115 has an arm shape and is provided at a lower part of the other surface 113b of the moveable blade 113. A tip portion of the pressing member 115 is formed with a pressing projection 116 having a substantially triangular shape. The pressing projection 116 has a vertical surface 116a formed by extending the tip surface of the pressing member 115 and an inclined surface 116b inclined downwards from a tip portion of the vertical surface 116a towards the other surface 113b-side. The pressing projection 116 configures a pressing part of a holding device configured to press the one side 5c of the termination portion 5b-side of the cut wire 5 to a side surface (guide recess 20) of the wire guide passage (curl guide 12). The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the tip portion of the pressing projection 116 of the moveable blade 113 is contacted.
(89) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, the wire cutting mechanism 111 operates to move the moveable blade 113 upwards, so that an upper edge of the other surface 113b of the moveable blade 113 is engaged with a vicinity 5d of the termination portion 5b of the wire 5 and pushes up and bends the wire 5 before the cutting, and then the wire 5 is cut by the upper end edge of the one surface 113a of the moveable blade 113.
(90) After the cutting, the tip portion of the pressing projection 116 is engaged with the one side 5c of the termination portion 5b-side of the wire 5 and presses the wire 5 to the side surface (guide recess 20) of the wire guide passage (curl guide 12). The moveable blade 113 is stopped at the cutting position after the cutting. The vicinity 5d of the termination portion of the wire 5 is bent by the upper edge of the other surface 113b of the moveable blade 113. Since the wire guide passage (curl guide 12) is narrowed by the side surface (guide recess 20) and the tip portion of the pressing projection 116, the bent vicinity 5d of the termination portion of the wire 5 is hooked and held at the tip portion of the pressing projection 116. The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. The moveable blade 113 may be simply provided with the pressing member 115 and it is possible to press and hold the termination portion 5b of the wire 5 at the curl guide 12 with the pressing member 115 by the series of the wire cutting operations.
(91) After binding the reinforcing bars, when the trigger is released, the pressing member 115 is returned to the original position together with the moveable blade 113. Therefore, the holding state of the vicinity 5d of the termination portion of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation. Also, the pressing member 115 is configured to narrow the space between the pressing projection 116 and the guide recess 20. Thereby, the pressing member is difficult to pass to the vicinity 5d of the termination portion of the wire 5. However, the one side 5c of the termination portion 5b-side of the cut wire 5 may be pressed and held at the side surface (guide recess 20) of the wire guide passage (curl guide 12) by the pressing member 115.
(92) A tenth illustrative embodiment of the guide part 6 is described. As shown in
(93) The circular shaft-shaped fixed blade 122 is formed with a wire penetration hole 122a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 122a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 122a is a wire entry opening 122b, and the other end-side opening of the wire penetration hole 122a is a wire exit opening 122c. Also, the moveable blade 123 is formed with a wire insertion penetration hole 123a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 123a opens towards the wire exit opening 122c of the wire penetration hole 122a of the fixed blade 122, and the other end opens towards the curl guide 12. The one end-side opening of the wire insertion penetration hole 123a is a wire entry opening 123b, and the other end-side opening of the wire insertion penetration hole 123a is a wire discharge opening 123c.
(94) The wire cutting mechanism 121 is configured to move the moveable blade 123 in the counterclockwise direction by the driving lever 16, to enable a surface of the wire entry opening 123b-side of the moveable blade 123 to slide upwards along a surface of the wire exit opening 122c-side of the fixed blade 122, and to enable a lower end edge of the wire entry opening 123b of the moveable blade 123 to cut the wire 5 having passed through the wire penetration hole 122a.
(95) The moveable blade 123 is linked with a holding shaft 129 serving as a holding member through a link mechanism 128. The link mechanism has a first link member 128a and a second link member 128b. The second link member 128b is rotatably attached to the guide frame 13. The first link member 128a is rotatably attached to the moveable blade 123 at one side and is rotatably attached to an upper part of the second link member 128b at the other side. The holding shaft 129 is axially slidably attached to the guide frame 13 and has a rear end rotatably coupled to the second link member 128b and a tip to contact the one side 5c of the termination portion 5b-side of the wire 5.
(96) The moveable blade 123 is configured to cut the wire, and the tip portion of the holding shaft 129 is configured to press the one side 5c of the termination portion 5b-side of the cut wire 5 to the side surface (guide recess 20) of the wire guide passage (curl guide 12) through the link mechanism 128. Therefore, the reinforcing bar binding machine 1 is configured to hold the one side 5c of the termination portion 5b-side of the cut wire 5 by the tip portion of the holding shaft 129 and the side surface (guide recess 20) of the wire guide passage (curl guide 12). The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the tip portion of the holding shaft 129 is contacted.
(97) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, the wire cutting mechanism 121 operates to rotate the moveable blade 123, so that the lower end edge of the wire entry opening 123b of the wire insertion penetration hole 123a cuts the wire. Simultaneously with the cutting, the tip portion of the holding shaft 129 presses the one side 5c of the termination portion 5b-side of the cut wire 5 to the side surface (guide recess 20) of the wire guide passage (curl guide 12) through the link mechanism 128 and sandwiches the one side 5c of the termination portion 5b of the wire 5. The moveable blade 123 is stopped at the cutting position after the cutting. Thereby, the one side 5c of the termination portion 5b-side of the wire 5 is held by the tip portion of the holding shaft 129 and the side surface (guide recess 20) of the wire guide passage (curl guide 12). Also, in the tenth illustrative embodiment, the holding member is configured as the shaft-shaped (arm-shaped) holding shaft. However, the other side of the link mechanism may be made to come close to the wire guide passage-side and a circular or elliptical holding member may be configured, for example.
(98) The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. The moveable blade 123 may be simply provided with the link mechanism 128 and the holding shaft 129 and it is possible to press and hold the termination portion 5b of the wire 5 at the curl guide 12 with the holding shaft 129 by the series of the wire cutting operations. Also, it is possible to adjust the pressing force of the holding shaft 129 by a length of the link mechanism.
(99) After binding the reinforcing bars, the moveable blade 123 is returned to the original position before the cutting. Therefore, the holding shaft 129 is separated from the wire 5 through the link mechanism 128 and the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(100) An eleventh illustrative embodiment of the guide part 6 is described. The eleventh illustrative embodiment is different from the tenth illustrative embodiment, as regards the wire cutting mechanism. Therefore, the eleventh illustrative embodiment is described with reference to
(101) The circular shaft-shaped moveable blade 122 is formed with a wire penetration hole 122a penetrated in the feeding direction of the wire 5. One end of the wire penetration hole 122a opens towards the tip portion 8b of the guide pipe 8, and the other end opens towards the curl guide 12. The one end-side opening of the wire penetration hole 122a is a wire entry opening 122b, and the other end-side opening of the wire penetration hole 122a is a wire exit opening 122c. Also, the fixed blade 123 is formed with a wire insertion penetration hole 123a penetrated in the feeding direction of the wire 5. One end of the wire insertion penetration hole 123a opens towards the wire exit opening 122c of the moveable blade 122, and the other end opens towards the curl guide 12. The one end-side opening of the wire insertion penetration hole 123a of the moveable blade 53 is a wire entry opening 123b, and the other end-side opening of the wire insertion penetration hole 123a is a wire discharge opening 123c.
(102) The wire cutting mechanism 131 is configured to rotate the moveable blade 122 in the counterclockwise direction by the driving lever 16, to enable a surface of the wire exit opening 122c-side of the moveable blade 122 to slide upwards along a surface of the wire entry opening 123b-side of the fixed blade 123, and to enable a lower end edge of the wire exit opening 122c of the moveable blade 122 to cut the wire 5 having passed through the wire penetration hole 122a.
(103) The driving lever 16 is linked with a holding shaft 129 through a link mechanism 128. The link mechanism has a first link member 128a and a second link member 128b. The second link member 128b is rotatably attached to the guide frame 13. The first link member 128a is rotatably attached to the moveable blade 122 at one side and is rotatably attached to an upper part of the second link member 128b at the other side. The holding shaft 129 is axially slidably attached to the guide frame 13 and has a rear end rotatably coupled to the second link member 128b and a tip to contact the one side 5c of the termination portion 5b-side of the wire 5.
(104) The moveable blade 122 is configured to cut the wire, and the tip portion of the holding shaft 129 is configured to press the one side 5c of the termination portion 5b-side of the cut wire 5 to the side surface (guide recess 20) of the wire guide passage (curl guide 12) through the link mechanism 128. Therefore, the reinforcing bar binding machine 1 is configured to hold the one side 5c of the termination portion 5b-side of the cut wire 5 by the tip portion of the holding shaft 129 and the side surface (guide recess 20) of the wire guide passage (curl guide 12). The one side 5c of the termination portion 5b-side of the wire 5 indicates a position to which the tip portion of the holding shaft 129 is contacted. Also, in the eleventh illustrative embodiment, the holding member is configured as the shaft-shaped (arm-shaped) holding shaft. However, the other side of the link mechanism may be made to come close to the wire guide passage-side and a circular or elliptical holding member may be configured, for example.
(105) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, when the wire cutting mechanism 131 operates to rotate the moveable blade 122 upwards to cut the wire, the tip portion of the holding shaft 129 presses the one side 5c of the termination portion 5b-side of the cut wire 5 to the side surface (guide recess 20) of the wire guide passage (curl guide 12) through the operation lever and the link mechanism 128 and sandwiches the one side 5c of the termination portion 5b of the wire 5. The moveable blade 122 is stopped at the cutting position after the cutting. Thereby, the one side 5c of the termination portion 5b-side of the wire 5 is held by the tip portion of the holding shaft 129 and the side surface (guide recess 20) of the wire guide passage (curl guide 12).
(106) The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. The moveable blade 113 may be simply provided with the link mechanism 128 and the holding shaft 129 and it is possible to press and hold the termination portion 5b of the wire 5 at the curl guide 12 with the holding shaft 129 by the series of the wire cutting operations. Also, it is possible to adjust the pressing force of the holding shaft 129 by a length of the link mechanism.
(107) After binding the reinforcing bars, the moveable blade 122 is returned to the original position before the cutting. Therefore, the holding shaft 129 is separated from the wire 5 through the link mechanism 128 and the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(108) A twelfth illustrative embodiment of the guide part 6 is described. In the tenth and eleventh illustrative embodiments, the holding shaft 129 of the holding member is linked with the wire cutting mechanism 121; 131 through the link mechanism 128. However, as shown in
(109) According to the reinforcing bar binding machine 1 having the above configuration, after the wire 5 is curled at the guide part 6 and is then wound around the reinforcing bars 7, when the wire cutting mechanism operates to cut the wire, the tip portion of the holding shaft 129 presses the one side 5c of the termination portion 5b-side of the cut wire 5 to the side surface (guide recess 20) of the wire guide passage (curl guide 12) through another link mechanism and sandwiches the one side 5c of the termination portion 5b of the wire 5. Thereby, the one side 5c of the termination portion 5b-side of the wire 5 is held by the tip portion of the holding shaft 129 and the side surface (guide recess 20) of the wire guide passage (curl guide 12).
(110) The start end portion 5a of the wire 5 cannot be freely moved because it is hooked and pressed at a part including the termination portion 5b of the wire 5 held at the guide part 6. Even when the wire is twisted by the wire twisting device at the state where both ends 5a, 5b are held in this way, both end portions 5a, 5b of the wire 5 can be enabled to stay on the back sides of the reinforcing bars. Since the driving part is used separately from the wire cutting mechanism, it is possible to arbitrarily adjust the wire holding timing, independently. In the ninth to twelfth illustrative embodiments, the termination portion 5b of the wire 5 is held using the curl guide 12, the pressing member and the holding member. Since the wire guide passage of the curl guide 12 is wide, it is possible to easily adjust the arrangements of the pressing member and the holding member.
(111) After binding the reinforcing bars, the holding shaft 129 is returned to the original position through another link mechanism by the driving part of the reinforcing bar binding machine. Therefore, the holding state of the one side 5c of the termination portion 5b-side of the wire 5 is released, so that it is possible to smoothly and simply pull out both ends 5a, 5b of the cut and twisted wire 5 from the binding machine main body 2 without any deformation.
(112) A thirteenth illustrative embodiment of the guide part 1006 is described. As shown in
(113) The fixed blade 1062 is formed with a wire penetration hole 1062a penetrated in the feeding direction of the wire 1005. One end of the wire penetration hole 1062a opens towards the tip portion 1008b of the guide component 1008, and the other end opens towards the curl guide 1012. The one end-side opening of the wire penetration hole 1062a is a wire entry opening 1062b, and the other end-side opening of the wire penetration hole 1062a is a wire exit opening 1062c.
(114) As shown in
(115) The guide frame 1013 is provided with a support pin (support member) 1065 configured to support the wire 1005 fed out from the wire penetration hole 1062a of the fixed blade 1062 at a downstream (opposite) position of the one surface (cutting surface) 1063a of the moveable blade 1063 with respect to the feeding direction of the wire 1005. The fixed blade 1062 is configured to support one side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1063. The support pin 1065 is configured to support the other side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1063. That is, upon the wire cutting of the moveable blade 1063, both sides of the wire cutting portion 1005b are supported by the moveable blade 1063 and the support pin 1065.
(116) The moveable blade 1063 is configured to push the cut portion (hereinafter, referred to as ‘termination portion’) 1005b of the cut and separated wire 1005 in a cutting direction (downward direction) by a lower end portion 1063c. The support pin 1065 also has a function as a contact part configured to contact and bend the one side 1005c of the termination portion 1005b-side of the wire 1005 pushed by the moveable blade 1063. The one side 1005c of the termination portion 1005b-side of the wire 1005 pushed by the lower end portion 1063c of the moveable blade 1063 is bent by the support pin 1065. Therefore, the reinforcing bar binding machine 1001 is configured to sandwich and hold the one side 1005c of the termination portion 1005b-side of the cut wire 1005 by the lower end portion 1063c of the moveable blade 1063 and the support pin 1065. The one side 1005c of the termination portion 1005b-side of the wire 1005 indicates a position to which the support pin 1065 is contacted.
(117) According to the reinforcing bar binding machine 1001 having the above configuration, after the wire 1005 is curled at the guide part 1006 and is then wound around the reinforcing bars 1007, the wire cutting mechanism 1061 operates to move the moveable blade 1063 downwards to cut the wire. Upon the wire cutting of the moveable blade 1063, since both sides of the wire cutting portion 1005b are supported by the fixed blade 1062 and the support pin 1065, the free end-side of the wire 1005 is not bent in the cutting direction of the moveable blade 1063 upon the cutting and the cutting operation can be securely and smoothly performed. As shown in
(118) The moveable blade 1063 is stopped at the cutting position after the cutting. The one side 1005c of the termination portion 1005b-side of the wire 1005 is sandwiched by the lower end portion 1063c of the moveable blade 1063 and the support pin 1065. Thereby, the one side 1005c of the termination portion 1005b-side of the wire 1005 is held by the lower end portion 1063c of the moveable blade 1063 and the support pin 1065. The start end portion 1005a of the wire 1005 cannot be freely moved because it is hooked and pressed at a part including the termination portion 1005b of the wire 1005 held at the guide part 1006. Even when the wire is twisted by the wire twisting device at the state where both ends 1005a, 1005b are held in this way, both end portions 1005a, 1005b of the wire 1005 can be enabled to stay on the back sides of the reinforcing bars. It is possible to bend the wire 1005 and to hold the termination portion 1005b of the wire by using the operation of cutting the wire 1005 by the moveable blade 1063 and the support pin 1065.
(119) After binding the reinforcing bars, the moveable blade 1063 is returned to the original position before the cutting. Therefore, the holding state of the one side 1005c of the termination portion 1005b-side of the wire 1005 is released, so that it is possible to smoothly and simply pull out both ends 1005a, 1005b of the cut and twisted wire 1005 from the binding machine main body 1002 without any deformation.
(120) In the thirteenth illustrative embodiment, the vertical sliding-type wire cutting mechanism 1061 has been described. However, as shown in
(121) The fixed blade 1072 is integrally formed with the tip portion of the guide component 1008 and is formed with a wire penetration hole 1072a penetrated in the feeding direction of the wire 1005. One end of the wire penetration hole 1072a continues to a tip portion opening of the guide component 1008, and the other end opens towards the curl guide 1012. The other end-side opening of the wire penetration hole 1072a is a wire exit opening 1072c.
(122) As shown in
(123) The guide frame 1013 is provided with a support pin (support member) 1075 configured to support the wire 1005 fed out from the wire penetration hole 1072a of the fixed blade 1072 at a downstream (opposite) position of the one surface (cutting surface) 1073a of the moveable blade 1073 with respect to the feeding direction of the wire 1005. The fixed blade 1072 is configured to support one side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1073. The support pin (support member) 1075 is configured to support the other side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1073. That is, upon the wire cutting of the moveable blade 1073, both sides of the wire cutting portion 1005b are supported by the fixed blade 1072 and the support pin 1075.
(124) The moveable blade 1063 is configured to push the cut end portion (hereinafter, referred to as ‘termination portion’) 1005b of the cut and separated wire 1005 in a cutting direction (downward direction) by a lower end portion 1073c. The support pin 1075 also has a function as a contact part configured to contact and bend the one side 1005c of the termination portion 1005b-side of the wire 1005 pushed by the moveable blade 1073. The one side 1005c of the termination portion 1005b-side of the wire 1005 pushed by the lower end portion 1073c of the moveable blade 1073 is bent by the support pin 1075. Therefore, the reinforcing bar binding machine 1001 is configured to sandwich and hold the one side 1005c of the termination portion 1005b-side of the cut wire 1005 by the lower end portion 1073c of the moveable blade 1073 and the support pin 1075. The one side 1005c of the termination portion 1005b-side of the wire 1005 indicates a position to which the support pin 1075 is contacted.
(125) According to the reinforcing bar binding machine 1001 having the above configuration, after the wire 1005 is curled at the guide part 1006 and is then wound around the reinforcing bars 1007, the wire cutting mechanism 1071 operates to move the moveable blade 1073 downwards to cut the wire. Upon the wire cutting of the moveable blade 1073, since both sides of the wire cutting portion 1005b are supported by the fixed blade 1072 and the support pin 1075, the free end-side of the wire 1005 is not bent in the cutting direction of the moveable blade 1063 upon the cutting and the cutting operation can be securely and smoothly performed. After the cutting, the lower end portion 1073c of the moveable blade 1073 pushes the termination portion 1005b of the cut wire 1005 in the cutting direction (downward direction), so that the one side 1005c of the termination portion 1005b-side of the wire 1005 is bent by the support pin 1075.
(126) The moveable blade 1073 is stopped at the cutting position after the cutting. The one side 1005c of the termination portion 1005b-side of the wire 1005 is sandwiched by the lower end portion 1073c of the moveable blade 1073 and the support pin 1075. Thereby, the one side 1005c of the termination portion 1005b-side of the wire 1005 is held by the lower end portion 1073c of the moveable blade 1073 and the support pin 1075. The start end portion 1005a of the wire 1005 cannot be freely moved because it is hooked and pressed at a part including the termination portion 1005b of the wire 1005 held at the guide part 1006. Even when the wire is twisted by the wire twisting device at the state where both ends 1005a, 1005b are held in this way, both end portions 1005a, 1005b of the wire 1005 can be enabled to stay on the back sides of the reinforcing bars. It is possible to bend the wire 1005 and to hold the termination portion 1005b of the wire by using the operation of cutting the wire 1005 by the moveable blade 1073 and the support pin 1075.
(127) After binding the reinforcing bars, the moveable blade 1073 is returned to the original position before the cutting. Therefore, the holding state of the one side 1005c of the termination portion 1005b-side of the wire 1005 is released, so that it is possible to smoothly and simply pull out both ends 1005a, 1005b of the cut and twisted wire 1005 from the binding machine main body 1002 without any deformation.
(128) In the thirteenth and fourteenth illustrative embodiments, the vertical sliding-type wire cutting mechanisms 1061, 1071 have been described. However, as shown in
(129) The circular shaft-shaped fixed blade 1102 is formed with a wire penetration hole 1102a penetrated in the feeding direction of the wire 1005. One end of the wire penetration hole 1102a opens towards the tip portion 1008b of the guide component 1008, and the other end opens towards the curl guide 1012. The one end-side opening of the wire penetration hole 1102a is a wire entry opening 1102b, and the other end-side opening of the wire penetration hole 1102a is a wire exit opening 1102c. Also, the moveable blade 1103 is formed with a wire insertion penetration hole 1103a penetrated in the feeding direction of the wire 1005. One end of the wire insertion penetration hole 1103a opens towards the wire exit opening 1102c of the wire penetration hole 1102a of the fixed blade 1102, and the other end opens towards the curl guide 1012. The one end-side opening of the wire insertion penetration hole 1103a of the moveable blade 1103 is a wire entry opening 1103b, and the other end-side opening of the wire insertion penetration hole 1103a is a wire discharge opening 1103c.
(130) As shown in
(131) The guide frame 1013 is provided with a support pin (support member) 1105 configured to support the wire 1005 fed out from the wire penetration hole 1102a of the fixed blade 1102 at a downstream (opposite) position of the cutting surface 1103e of the moveable blade 1103 with respect to the feeding direction of the wire 1005. The fixed blade 1102 is configured to support one side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1103. The support pin (support member) 1105 is configured to support the other side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1103. That is, upon the wire cutting of the moveable blade 1103, both sides of the wire cutting portion 1005b are supported by the moveable blade 1103 and the support pin 1105.
(132) The moveable blade 1103 is configured to cut the wire 1005, and to push one side 1005c of the cut end portion (hereinafter, referred to as ‘termination portion’) 1005b of the cut and separated wire 1005 in a cutting direction (upward direction) by a lower end edge 1103d of the wire discharge opening 1103c of the wire insertion penetration hole 1103a. The support pin 1105 also has a function as a contact part configured to contact and bend the one side 1005d of the termination portion 1005b-side of the wire 1005 pushed by the moveable blade 1103. The one side 1005d of the termination portion 1005b-side of the wire 1005 pushed by the lower end edge 1103d of the moveable blade 1103 is bent by the support pin 1105. Therefore, the reinforcing bar binding machine 1001 is configured to sandwich and hold the one side 1005d of the termination portion 1005b-side of the cut wire 1005 by the lower end edge 1103d of the wire insertion penetration hole 1103a of the moveable blade 1103 and the support pin 1105. The one side 1005d of the termination portion 1005b-side of the wire 1005 indicates a position to which the support pin 1105 is contacted.
(133) According to the reinforcing bar binding machine 1001 having the above configuration, after the wire 1005 is curled at the guide part 1006 and is then wound around the reinforcing bars 1007, the wire cutting mechanism 1101 operates to rotate the moveable blade 1103 upwards, so that the wire is cut by the lower end edge of the wire entry opening 1103b of the moveable blade 1103. Upon the wire cutting of the moveable blade 1103, since both sides of the wire cutting portion 1005b are supported by the fixed blade 1102 and the support pin 1105, the free end-side of the wire 1005 is not bent in the cutting direction of the moveable blade 1103 upon the cutting and the cutting operation can be securely and smoothly performed. As shown in
(134) The start end portion 1005a of the wire 1005 cannot be freely moved because it is hooked and pressed at a part including the termination portion 1005b of the wire 1005 held at the guide part 1006. Even when the wire is twisted by the wire twisting device at the state where both ends 1005a, 1005b are held in this way, both end portions 1005a, 1005b of the wire 1005 can be enabled to stay on the back sides of the reinforcing bars. Since the termination portion 1005b of the wire 1005 is fitted with the moveable blade 1103 and the support pin 1105 by using the operation of the moveable blade 1103 upon the cutting of the wire 1005, it can be securely held.
(135) After binding the reinforcing bars, the moveable blade 1103 is returned to the original position before the cutting. Therefore, the holding state of the one side 1005d of the termination portion 1005b-side of the wire 1005 is released, so that it is possible to smoothly and simply pull out both ends 1005a, 1005b of the cut and twisted wire 1005 from the binding machine main body 1002 without any deformation.
(136) The guide part 1006 of the reinforcing bar binding machine 1001 is provided with the curling mechanism configured to curl and feed out the wire 1005. The wire 1005 guided and led out by the guide component 1008 is curled by the curling mechanism, is fed out by a predetermined length, is wound around the reinforcing bars 1007 and is then cut by the wire cutting mechanism.
(137) In the fifteenth illustrative embodiment, the fixed blade and the moveable blade of the wire cutting mechanism of the rotary cutter may be reversed. That is, as shown in
(138) As shown in
(139) The circular shaft-shaped moveable blade 1092 is formed with a wire penetration hole 1092a penetrated in the feeding direction of the wire 1005. One end of the wire penetration hole 1092a opens towards the tip portion 1008b of the guide component 1008, and the other end opens towards the curl guide 1012. The one end-side opening of the wire penetration hole 1092a is a wire entry opening 1092b, and the other end-side opening of the wire penetration hole 1092a is a wire exit opening 1092c. Also, the fixed blade 1093 is formed with a wire insertion penetration hole 1093a penetrated in the feeding direction of the wire 1005. One end of the wire insertion penetration hole 1093a opens towards the guide component 1008, and the other end of the wire insertion penetration hole 1093a opens towards the wire entry opening 1092b of the wire penetration hole 1092a of the moveable blade 1092. The one end-side opening of the wire insertion penetration hole 1093a is a wire entry opening 1093b, and the other end-side opening of the wire insertion penetration hole 1093a is a wire discharge opening 1093c.
(140) As shown in
(141) The guide frame 1013 is provided with a support pin (support member) 1096 configured to support the wire 1005 fed out from the wire penetration hole 1092a of the moveable blade 1092 at a downstream (opposite) position of the cutting surface 1092f of the moveable blade 1092 with respect to the feeding direction of the wire 1005. The fixed blade 1093 is configured to support one side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1092. The support pin (support member) 1096 is configured to support the other side of the wire cutting portion 1005b upon the wire cutting of the moveable blade 1092. That is, upon the wire cutting of the moveable blade 1092, both sides of the wire cutting portion 1005b are supported by the fixed blade 1093 and the support pin 1096.
(142) The moveable blade 1092 is configured to cut the wire 1005, and to push and bend one side 1005c of the cut end portion (hereinafter, referred to as ‘termination portion’) 1005b of the cut and separated wire 1005 in a counter-cutting direction (upward direction) by a lower end edge 1092e of the wire exit opening 1092c of the wire penetration hole 1092a and to form a bent part. Therefore, the reinforcing bar binding machine 1001 is configured to hold the one side 1005c (bent part) of the termination portion 1005b-side of the cut wire 1005 by the lower end edge 1092e of the wire penetration hole 1092a of the moveable blade 1092 and to hold the termination portion 1005b of the wire 1005 by the upper end edge 1092d-side of the moveable blade 1092. Also, a vicinity 1005d of the termination portion of the wire 1005 is held by the support pin 1096. The one side 1005c of the termination portion 1005b-side of the wire 1005 indicates a position to which the lower end edge 1092e of the wire penetration hole 1092a of the moveable blade 1092 is contacted.
(143) According to the reinforcing bar binding machine 1001 having the above configuration, after the wire 1005 is curled at the guide part 1006 and is then wound around the reinforcing bars 1007, the wire cutting mechanism 1091 operates to rotate the moveable blade 1092, so that the wire is cut by the upper end edge 1092d of the wire entry opening 1092b of the wire penetration hole 1092a of the moveable blade 1092. Upon the wire cutting of the moveable blade 1092, since both sides of the wire cutting portion 1005b are supported by the fixed blade 1093 and the support pin 1096, the free end-side of the wire 1005 is not bent in the cutting direction of the moveable blade 1093 upon the cutting and the cutting operation can be securely and smoothly performed. Simultaneously with the cutting, the lower end edge 1092e of the wire exit opening 1092c of the wire penetration hole 1092a of the moveable blade 1092 pushes up the one side 1005c of the termination portion 1005b-side of the cut wire 1005 in the cutting direction (upward direction), the lower end edge 1092e of the wire penetration hole 1092a of the moveable blade 1092 holds the one side 1005c, and the upper end edge 1092d of the moveable blade 1092 holds the termination portion 1005b of the wire 1005. Also, the vicinity 1005d of the termination portion of the wire 1005 is held by the support pin 1096. The moveable blade 1092 is stopped at the cutting position after the cutting. Thereby, the one side 1005c of the termination portion 1005b-side of the wire 1005 is held at the lower end edge 1092e of the wire exit opening 1092c of the moveable blade 1092, the termination portion 1005b of the wire 1005 is held at the upper end edge 1092d of the wire entry opening 1092b of the moveable blade 1092 and the vicinity 1005d of the termination portion of the wire 1005 is held at the support pin 1096.
(144) The start end portion 1005a of the wire 1005 cannot be freely moved because it is hooked and pressed at a part including the termination portion 1005b of the wire 1005 held at the guide part 1006. Even when the wire is twisted by the wire twisting device at the state where both ends 1005a, 1005b are held in this way, both end portions 1005a, 1005b of the wire 1005 can be enabled to stay on the back sides of the reinforcing bars. It is possible to securely hold the termination portion 1005b of the wire 1005 with the moveable blade 1092 and the support pin 1096 by using the operation of the moveable blade 1092 upon the cutting of the wire 1005.
(145) After binding the reinforcing bars, the moveable blade 1092 is returned to the original position before the cutting. Therefore, the holding state of the termination portion 1005b-side of the wire 1005 is released, so that it is possible to smoothly and simply pull out both ends 1005a, 1005b of the cut and twisted wire 1005 from the binding machine main body 1002 without any deformation.
(146) The curling mechanism includes the first guide member 1023 serving as a first curling guide member configured to guide an outer surface of the wire 1005 becoming a bent outer side thereof, the second guide member 1024 serving as a second curling guide member configured to guide an inner surface of the wire 1005 becoming a bent inner side thereof, the fourth guide member 1065 (1075, 1096, 1105) serving as a fourth curling guide member configured to guide a bent side surface of the wire, and the third guide member 1025 serving as a third curling guide member configured to guide an outer surface of the wire becoming a bent outer side thereof, which are sequentially arranged on the wire feeding path from the wire exit opening 1008b of the end portion of the guide component 1008 or a vicinity thereof. The fourth guide member 1065; 1075; 1096 is configured to guide an inner surface of the wire becoming a bent inner side, as shown in
(147) The guide members 1023 to 1025 and 1065 (1075, 1097, 1105) are configured by the cylindrical guide members of which a sectional shape is circular, respectively. The guide member is preferably made of a high hardness material such as carbide pins (cemented carbide pins or ceramic pins) because it is not worn well. Also, the first guide member and the second guide member may have a shape of a guide part integrally formed with the guide component 1008, not the pin shape. Also, the third guide member may have a shape of a guide part integrally formed with the curl guide 1012, not the pin shape. Also, the fourth guide member may have a shape of a guide part of a convex part provided for the guide frame 1013, not the pin shape.
(148) Specifically, the first guide member 1023 is provided at an upper notched part of the tip 1008b of the guide component 1008. The second guide member 1023 is provided at a lower part-side of the tip 1008b of the guide component 1008. The third guide member 1025 is arranged inside the rear end of the curl guide 1012. The fourth guide member 1065 (1075, 1096, 1105) is arranged inside the tip portion of the curl guide 1012, as shown in
(149) In this way, the wire 1005 fed out from the guide component 1008 is guided with the outer surface of the wire 1005 configuring a bent outer side thereof being contacted to the first guide member 1023 and with the inner surface of the wire 1005 configuring a bent inner side thereof being contacted to the second guide member 1024, passes through the wire penetration hole 1062a (1072a, 1092a, 1102a) of the fixed blade 1062 (1072, 1102) or the moveable blade 1092, is guided with the bent side surface of the wire 1005 fed out along the guide surface 1021 of the curl guide 1012 being contacted to the fourth guide member 1065 (1075, 1096, 1105) and with the bent outer surface of the wire 1005 being contacted to the third guide member 1025, is curled and is then fed downwards. The guide member, which is one member of the curling mechanism configured to curl the wire 1005, i.e., the fourth guide member 1065 (1075, 1096, 1105) can be enabled to function as the support pin (support member).
(150) In the illustrative embodiments, both sides of the cut end portion 1005b of the wire 1005 are supported by the fixed blade 1062; 1072; 1093; 1102 and the support member 1067; 1075; 1096; 1105. That is, both-end support method has been described. That is, upon the wire cutting by the wire cutting mechanism 1061; 1071; 1091; 1101, in order to securely transmit the force for cutting of the wire 1005, which is applied to the wire 1005 in the cutting direction, the guide part 1006 of the reinforcing bar binding machine 1001 is provided with the support member 1065; 1075; 1096; 1105 so that the wire 1005 is not deformed at an opposite position in the wire cutting direction. In this way, when the guide part 1006 of the reinforcing bar binding machine 1001 is provided with the support member 1065; 1075; 1096; 1105 configured to support the wire 1005 fed out from the wire cutting mechanism 1061; 1071; 1091; 1101 at the downstream-side position of the cutting part of the wire cutting mechanism 1061; 1071; 1091; 1101 with respect to the feeding direction of the wire 1005, the support member 1065; 1075; 1096; 1105 supports the wire 1005 upon the wire cutting of the wire cutting mechanism 1061; 1071; 1091; 1101. Upon the wire cutting of the wire cutting mechanism 1061; 1071; 1091; 1101, since the reinforcing bar binding machine 1001 supports the wire 1005 with the support member 1065; 1075; 1096; 1105, the wire 1005 is not bent in the cutting direction upon the cutting and the cutting operation can be securely and smoothly performed.
(151) Also, the fixed blade 1062; 1072 may be replaced with a fixed member having no blade or the fixed blade 1062; 1072 may be provided with a separate fixed member, and the wire 1005 may be supported by the both-end support method of the fixed member and the support member 1065; 1075. That is, the guide part 1006 of the reinforcing bar binding machine 1001 is provided with the fixed member 1062; 1072 configured to support the wire at an upstream position of the cutting part of the wire cutting mechanism 1061; 1071 with respect to the feeding direction of the wire 1005. The fixed member 1062; 1072 is configured to support one side of the wire cutting portion 1005b upon the wire cutting, and the support member 1065; 1075 is configured to support the other side of the wire cutting portion 105b. Upon the wire cutting of the wire cutting mechanism 1061; 1071, the reinforcing bar binding machine 1001 is configured to support both sides of the wire cutting portion 1005b with the fixed member 1062; 1072 and the support member 1065; 1075. Therefore, the wire 1005 is not bent in the cutting direction upon the cutting and the cutting operation can be securely and smoothly performed.
(152) Also, the fixed blade 1062; 1072; 1093; 1102 may be configured as a moveable blade, so that the cutting operation may be performed by a pair of moveable blades. That is, the wire cutting mechanism 1061; 1071; 1091; 1101 is configured as a cutter having a first moveable blade 1062; 1072; 1093; 1102 and a second moveable blade 1063; 1073; 1092; 1103 configured to slide or swing to the first moveable blade 1062; 1072; 1093; 1102 and to cut the wire 1005. The first moveable blade 1062; 1072; 1093; 1102 or second moveable blade 1063; 1073; 1092; 1103 is configured to support one side of the wire cutting portion 1005b upon the wire cutting. The support member 1065; 1075; 1096; 1105 is configured to support the other side of the wire cutting portion 1005b upon the wire cutting. In this way, upon the wire cutting of the pair of moveable blades, the reinforcing bar binding machine is configured to support both sides of the wire cutting portion 1005b with one of the first moveable blade 1062; 1072; 1093; 1102 or second moveable blade 1063; 1073; 1092; 1103 and the support member 1065; 1075; 1096; 1105. Therefore, the wire 1005 is not bent in the cutting direction upon the cutting and the cutting operation can be securely and smoothly performed.
(153) (A1) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a fixed blade having a wire penetration hole penetrated in a feeding direction of the wire and a moveable blade configured to slide or swing to the fixed blade and to cut the wire. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is a bending part configured to bend and hold the cut end portion-side of the cut and separated wire.
(154) (A2) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a moveable blade having a wire penetration hole penetrated in a feeding direction of the wire and a fixed blade configured to rotatably accommodate the moveable blade. A wire entry opening-side of the wire penetration hole slides to the fixed blade and cuts the wire as the moveable blade is rotated. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is an end portion edge of a wire exit opening of the wire penetration hole of the moveable blade configured to bend and hold the cut end portion-side of the cut and separated wire.
(155) (A3) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a fixed blade having a wire penetration hole penetrated in a feeding direction of the wire and a moveable blade configured to slide or swing to the fixed blade and to cut the wire. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is configured by a contact part configured to contact and bend the cut end portion-side of the cut and separated wire.
(156) (A4) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a fixed blade having a wire penetration hole penetrated in a feeding direction of the wire and a moveable blade configured to slide or swing to the fixed blade and to cut the wire. A tip portion of the moveable blade is formed with a bending part configured to bend a cut end portion-side of the cut and separated wire. The guide part is provided with a holding device configured to hold the cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is a contact part configured to be contacted and engaged with the cut end portion-side of the wire bent with the bending part formed at the tip portion of the moveable blade.
(157) (A5) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a moveable blade having a wire penetration hole penetrated in a feeding direction of the wire and a fixed blade configured to rotatably accommodate the moveable blade. A wire entry opening-side of the wire penetration hole slides to the fixed blade and cuts the wire as the moveable blade is rotated. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is configured by a contact part configured to contact the cut end portion-side of the cut and separated wire.
(158) (A6) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a fixed blade having a wire penetration hole penetrated in a feeding direction of the wire and a moveable blade provided to be rotatable around the fixed blade. The moveable blade is configured to slide to a wire exit opening-side of the wire penetration hole of the fixed blade and to cut the wire as the moveable blade is rotated. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is configured by the moveable blade and a contact part configured to contact the cut end portion-side of the cut and separated wire.
(159) (A7) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a fixed blade having a wire penetration hole penetrated in a feeding direction of the wire and a moveable blade configured to slide or swing to the fixed blade and to cut the wire. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is a pressing part configured to press the cut end portion-side of the cut and separated wire to a side surface of a wire guide passage.
(160) (A8) In the reinforcing bar bending machine of (A7), the holding device is configured so that the pressing part presses and holds the cut end portion-side of the cut and separated wire to the side surface of the wire guide passage.
(161) (A9) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a fixed blade having a wire penetration hole penetrated in a feeding direction of the wire and a moveable blade provided to be rotatable around the fixed blade. The cutter is configured to cut the wire as the moveable blade is rotated. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is a holding member coupled by the moveable blade and a link mechanism and configured to press the cut end portion-side of the wire separated by the moveable blade to a side surface of a wire guide passage.
(162) (A10) In the reinforcing bar bending machine of (A9), the holding device is configured so that the holding member presses and holds the cut end portion-side of the cut and separated wire to the side surface of the wire guide passage.
(163) (A11) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism is a cutter having a moveable blade having a wire penetration hole penetrated in a feeding direction of the wire and a fixed blade configured to rotatably accommodate the moveable blade. The cutter is configured to cut the wire as the moveable blade is rotated. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is a holding member coupled by the moveable blade and a link mechanism and configured to press the cut end portion-side of the wire separated by the moveable blade to a side surface of a wire guide passage.
(164) (A12) In the reinforcing bar bending machine of (A11), the holding device is configured so that the holding member presses and holds the cut end portion-side of the cut and separated wire to the side surface of the wire guide passage.
(165) (A13) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The wire cutting mechanism includes a fixed blade and a moveable blade. The guide part is provided with a holding device configured to hold a cut end portion-side of the wire cut and separated in conjunction with a cutting operation of the moveable blade, and the holding device is a holding member coupled to a driving part of the binding machine main body by a link mechanism and configured to press the cut end portion-side of the wire separated by the moveable blade to a side surface of a wire guide passage.
(166) (A14) In the reinforcing bar bending machine of (A13), the holding device is configured so that the holding member presses and holds the cut end portion-side of the cut and separated wire to the side surface of the wire guide passage.
(167) (B1) There is provided a reinforcing bar bending machine configured to detachably mount a wire reel thereto, to feed a wire from the mounted wire reel, to feed the wire to a guide part provided at a tip portion of a binding machine main body, to curl the wire at the guide part, to feed out the wire around reinforcing bars positioned at an inner side of the guide part so that the wire is wound around the reinforcing bars, to cut the wire with a wire cutting mechanism, and to twist the wound wire to thus bind the reinforcing bars. The guide part is provided with a support member configured to support the wire fed out from the wire cutting mechanism-side at a downstream-side position of a cutting part of the wire cutting mechanism with respect to a feeding direction of the wire, and the support member is configured to support the wire upon wire cutting of the wire cutting mechanism.
(168) (B2) In the reinforcing bar bending machine of (B1), the guide part is provided with a fixed member configured to support the wire at an upstream-side position of the cutting part of the wire cutting mechanism with respect to the feeding direction of the wire, the fixed member is configured to support one side of a wire cutting part upon the wire cutting, and the support member is configured to support the other side of the wire cutting portion upon the wire cutting.
(169) (B3) In the reinforcing bar bending machine of (B1), the wire cutting mechanism is a cutter including a first moveable blade and a second moveable blade configured to slide or swing to the first moveable blade and to cut the wire, the first moveable blade or second moveable blade is configured to support one side of a wire cutting part upon the wire cutting, and the support member is configured to support the other side of the wire cutting portion upon the wire cutting.
(170) (B4) In the reinforcing bar bending machine of (B1), the wire cutting mechanism is a cutter including the fixed blade and the moveable blade configured to slide or swing to the fixed blade and to cut the wire, the fixed blade is configured to support one side of a wire cutting part upon the wire cutting, and the support member is configured to support the other side of the wire cutting portion upon the wire cutting.
(171) (B5) In the reinforcing bar bending machine of (B4), the fixed blade is formed with a wire penetration hole penetrated in a feeding direction of the wire, the wire is configured to be fed out from the wire penetration hole of the fixed blade, and the moveable blade is configured to operate at a wire exit opening-side of the wire penetration hole of the fixed blade and to cut the wire.
(172) (B6) In the reinforcing bar bending machine of (B1), the wire cutting mechanism is a cutter including the fixed blade and the moveable blade provided to be rotatable around the fixed blade, the fixed blade is formed with a wire penetration hole penetrated in a feeding direction of the wire, the wire is configured to be fed out from the wire penetration hole of the fixed blade, the cutter is configured to cut the wire as the moveable blade is rotated, the fixed blade is configured to support one side of a wire cutting part upon the wire cutting, and the support member is configured to support the other side of the wire cutting portion upon the wire cutting.
(173) (B7) In the reinforcing bar bending machine of (B1), the wire cutting mechanism is a cutter including the fixed blade and the rotatable moveable blade accommodated inside the fixed blade, the moveable blade is formed with a wire penetration hole penetrated in a feeding direction of the wire, the wire is configured to be fed out from the wire penetration hole of the moveable blade, the cutter is configured to cut the wire as the moveable blade is rotated, the fixed blade is configured to support one side of a wire cutting part upon the wire cutting, and the support member is configured to support the other side of the wire cutting portion upon the wire cutting.
(174) (B8) In the reinforcing bar bending machine of any one of (B1) to (B7), the guide part is provided with a curling mechanism configured to curl the wire, the curling mechanism is provided with a plurality of guide members configured to guide an outer surface which is an outer side of the wire to be bent and an inner surface which is an inner side of the wire to be bent, and at least one of the guide members configures the support member.