Cutting load and/or bevel

Abstract

A device for carrying out miter cuts includes two limbs which are secured to a central element in a pivotal manner in each case and so as to be fixable in pivoted positions. Each limb has a stop strip with a contact surface, wherein the contact surface lies opposite a counter contact surface formed by a counter stop. The distance between the contact surface and the counter contact surface can be adjusted by an adjusting element. Furthermore, the limbs and the central element are made of plastic, and a region of the central element from which the guide elements originate and which extends at least over the region between the guide elements has either a metal plate or an exchangeable sacrificial plate.

Claims

1. A device for carrying out miter cuts comprising guide elements (31) secured thereto, wherein each guide element is formed by two adjacent guide pins (31), wherein the guide pins (31) have a shaft (33), on which at least one sleeve (32) is rotatably mounted, wherein the sleeve (32) has a spring tongue (34), which engages with a protrusion (34) with an annular groove (54) of the shaft (33).

2. The device according to claim 1, wherein several sleeves are arranged axially one behind the other on a shaft (33).

3. The device according to claim 1, wherein the sleeves (32) comprise plastic.

4. The device according to claim 1, wherein the spring tongue (34) is assigned to a front end (32) of the sleeve (32).

5. The device according to claim 1, wherein the spring tongue (34) extends between two notches open from the front end (32).

6. The device according to claim 1, wherein the protrusion (34) is arranged on the free end of the spring tongue (34).

7. The device according to claim 1, wherein the guide element (31) is assigned to a central element (1), to which two limbs (2, 2) are secured, which are pivotable and so as to be fixable in pivoted positions.

8. A device for carrying out miter cuts comprising a central element, two limbs extending from the central element, and guide elements (31, 32, 33) secured to the central element and being configured for guiding a saw, wherein one or several bodies of the device are made of plastic and a region of one of the bodies, from which guide elements (31, 32, 33) originate, extends at least over the region between the guide elements (31, 32, 33), and either has a metal plate (38) or an exchangeable sacrificial plate (38), wherein the metal plate (38) or sacrificial plate (38) lies in a recess (39) of the central element (1) and has openings, through which pivot axes (30) extend, by means of which ends (35) of the limbs (2, 2) are pivotably hinged to the central element (1).

9. The device according to claim 1, wherein the distance (x, y) between the guide elements (31) can be changed.

10. The device according to claim 9, wherein the guide elements (31) form a shaft (33) in each case, which is screwed into a nut (58) with a threaded section (66).

11. The device according to claim 10, wherein the threaded section (66) is inserted in a non-round nut (58), which can assume different rotational positions in a non-round recess (59), wherein the guide elements (31, 32, 33) have distances (x, y), which differ from one another, in the different rotational positions.

12. The device according to claim 11, wherein in a first rotational position of the nuts (58) having a polygonal outline, polygonal flanks of the nuts (58) run parallel to one another and in a second rotational position, polygonal corners (64) protrude beyond a central line (M) between the two guide elements.

13. The device according to claim 1, further comprising at least four guide pins (31), which carry two sleeves (32) in each case, which are arranged one on top of the other in the axial direction, wherein the sleeves (32) are secured rotatably but axially non-displaceably to the shaft (33) and/or wherein the sleeves (32) comprise plastic and the shaft (33) comprises metal.

14. The device according to claim 7, wherein the limbs (2, 2) can be pivoted from a first right-angled position, in which the contact surfaces (5) are at a first 90 degree angle to one another, into an extended position, in which the contact surfaces (5) are aligned with one another, and the limbs (2, 2) can be pivoted beyond the extended position all the way into a second right-angled position, in which the contact surfaces (5) are at a 270 degree angle to one another.

15. The device according to claim 7, wherein the central element (1) forms two pivot axes (30), to which acute-angled ends (35) of the limbs (2, 2) are pivotably hinged to the central element (1), wherein side walls (35) of the acute-angled ends (35) run at an angle of maximally 90 degrees to one another or less than 90 degrees to one another and/or wherein in a region spaced apart from the pivot axis (30), the side walls (35) have nooks (36, 37), into which guide elements (31, 32) enter in the first right-angled position or the second right-angled position.

16. A device for carrying out miter cuts comprising two limbs (2, 2), which are secured to a central element (1) in a pivotable manner in each case and so as to be fixable in pivoted positions, wherein each limb carries a stop strip (5) comprising a contact surface (5), which is secured to the limb (2, 2) so as to be capable of being shifted and/or offset in its direction of extension, wherein the stop strip (5) is secured to the limb (2, 2) by means of a releasable connection (52, 46) by means of securing elements (52) engaging through bores (48) of the stop strip (5) and elongated holes (47) of the limb (2, 2), wherein the elongated holes (47) extend in the bearing surface (10).

17. The device according to claim 16, wherein the stop strip (5) can be turned about an axis parallel to the direction of extension of the limb (2, 2) and/or about an axis perpendicular thereto.

18. The device according to claim 16, further comprising bores (48) arranged next to one another in pairs, into which a securing screw (52) can optionally be inserted.

19. The device according to claim 18, wherein the bores (48) have sections (48), which are diameter-enlarged towards both of their opening sides in each case.

20. The device according to claim 19, wherein the bores (48) extend between two longitudinal narrow sides of the stop strip (5).

21. The device according to claim 1, further comprising two limbs (2, 2), which are secured to a central element (1) in a pivotable manner in each case and so as to be fixable in pivoted positions and comprising a blocking means, by means of which the pivotability of the limbs (2, 2) can be blocked, wherein the blocking means has an actuating element (23), which can be brought from a release position into a blocking position, wherein each limb (2, 2) has a bearing surface (10) for supporting a workpiece, wherein the two bearing surfaces (10, 10) of the two limbs (2, 2) lie in a common plane, and the actuating elements (23) are arranged in a depression (24) of the bearing surface (10) and do not protrude beyond the bearing surface (10).

22. The device according to claim 21, wherein the actuating element (23) is a nut, which is screwed to a clamping screw (25), which engages with an elongated hole (51) of a fixing lever (26), the fixed end of which is secured to the central element (1) by means of a rotary bearing (27).

23. The device according to claim 16, wherein the stop strip (5) has two long narrow sides located opposite one another, in which the bores (48) are arranged and has two short narrow sides located opposite one another, wherein a narrow side runs obliquely to the contact surface (5) and the other runs at a right angle to the contact surface (5).

24. The device according to claim 16, wherein bores (48) for receiving securing screws (52) are approximately equidistantly spaced apart from a narrow outer edge of the contact surface (5).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) An exemplary embodiment of the invention will be described below on the basis of enclosed drawings, in which:

(2) FIG. 1 shows a miter box in a perspective illustration,

(3) FIG. 2 shows an enlarged section II of the FIG. 1, which is provided with cut-outs,

(4) FIG. 3 shows the miter box in a bottom view in an extended position of the two limbs 2, 2,

(5) FIG. 4 shows the section according to the line IV-IV in FIG. 3,

(6) FIG. 5 shows the section according to the line V-V in FIG. 2,

(7) FIG. 5a shows the section according to the line Va-Va in FIG. 5,

(8) FIG. 6 shows the section according to the line VI-VI in FIG. 2,

(9) FIG. 7 shows a top view onto the miter box in a 90 degree position of the two limbs 2, 2,

(10) FIG. 8 shows a bottom view of the miter box in the position illustrated in FIG. 7,

(11) FIG. 9 shows a top view onto the miter box in a 270 degree position of the two limbs 2, 2,

(12) FIG. 9a shows the section according to the line IXa-IXa in FIG. 9 in an enlarged manner,

(13) FIG. 10 shows a bottom view of the miter box in the position illustrated in FIG. 9,

(14) FIG. 11 shows the miter box in an operating position for cutting a 90 degree miter, wherein a counter stop 6 has a first distance from a stop strip 5,

(15) FIG. 12 shows the miter box in another operating position for manufacturing a right-angled cut, wherein the counter stop 6 has a decreased distance from the stop strip 5,

(16) FIG. 13 shows the section XIII in FIG. 10 in an enlarged manner,

(17) FIG. 14 shows the section according to the line XIV-XIV in FIG. 13,

(18) FIG. 15 shows the section according to the line XV-XV in FIG. 14,

(19) FIG. 16 shows an illustration according to FIG. 13, in which square nuts 58, which lie in polygonal recesses 59, have been rotated and

(20) FIG. 17 shows the section according to the line XVII-XVII in FIG. 16.

DESCRIPTION OF THE EMBODIMENTS

(21) On the one hand, the tool illustrated in the figures is a miter box, by means of which workpieces 50 can be cut, wherein the angle of the cut can be set by pivoting two limbs 2, 2 with respect to a central element 1.

(22) On the other hand, however, the tool is also a bevel, by means of which an angle of two surfaces of a workpiece or of a building wall or the like can be measured.

(23) Most preferably, however, the tool illustrated in the figures is a combination of a miter box and of a bevel, in the case of which the angle can be measured by means of two bevel flanks 3 and in the case of which two stop strips 5 are brought exactly into the angle, in order to be able to cut a bevel angle corresponding to the measured angle on the workpiece, when measuring the angle.

(24) A central element 1 has a central region with an essentially circular outline and is formed by a hollow body made of plastic. The central region is followed by opposing arms, which in each case carry two guide pins 31 standing close together. Together, two guide pins 31 form a guide element in each case for guiding a tool 49, for example a saw. The guide pins 31 have shafts 33. The shafts 33 have a circular cross section and consist of metal. Each shaft 33 supports at least one sleeve 32. In the case of the exemplary embodiment, each shaft 33 supports two sleeves 32, which are arranged axially one behind the other and which can rotate about the shaft 33.

(25) The sleeves 32 are secured to the shaft 33 in a rotatable but axially firm manner (see FIG. 5a). On one of their free ends, the sleeves 32 consisting of plastic or of an easily machinable material have two parallel notches in each case, which are open towards the end of the sleeve 32. A spring tongue 34, which forms a protrusion 34 protruding into the cavity of the sleeve 32, extends between the two notches. The shaft 33 consisting of metal has an annular groove 54, with which the protrusion 34 engages, in order to hold the sleeve 32, which can be rotated about the shaft 33 in this way, on the shaft 33 in a releasable manner.

(26) The surface of the central element 1 facing upwards in the use position has an insert 38 made of wood or of an easily machinable material or also of metal (see FIG. 9a). The insert can form a sacrificial plate, which can be exchanged. The insert, however, can also form a protective plate made of metal or the like. The insert 38 can lie in a recess 39.

(27) Two limbs 2, 2 are hinged to the central element 1 in a symmetrical manner. The limbs 2, 2 are hinged to the central element in such a way that they can be pivoted from a 90 degree position illustrated in the FIGS. 7 and 8, via an 180 degree position illustrated in the FIG. 3, all the way into a 270 degree position illustrated in the FIGS. 9 and 10. For this purpose, the two limbs 2, 2 are connected in each case to the central element 1 with end sections 35, which stand at acute angles to one another, via respective pivot bearings. The pivot bearings form pivot axes 30, about which the limbs 2, 2 can be pivoted.

(28) In the two pivoted end positions, the side walls 35 of the acute-angled end 35 of the two limbs 2, 2 can run parallel to one another. They can be spaced apart from one another, so that a saw blade can step between adjacent side walls 35.

(29) The side walls 35 have nooks 36, 37 in each case, into which the guide elements 31, 32 can step in the two pivoted end positions (FIG. 7, 8; FIG. 9, 10).

(30) The limbs 2, 2 are formed by hollow bodies made of plastic in each case. The hollow bodies, which are open towards the bottom, form a cavity 18. A pivot arm 28 made of metal is secured in the cavity 18. With an end section toothed over a semi-circle, the pivot arm 28 extends all the way below the acute-angled end 35 and likewise forms a portion of the pivot bearing, so that the pivot axis 30 extends through the central point of the two toothings 29, which extend over a semi-circular arch and which engage with one another in order to synchronize the pivot movement of the two limbs 2, 2.

(31) Rotary bearings 27, to which fixing levers 26 are secured, are provided at a distance from the pivot axes 30, approximately at the same distance, at which the two pivot axes 30 are spaced apart from one another. The fixing levers 26 have an elongated hole 51 in each case and extend over a majority of the length of the limbs 2, 2. Clamping screws 25, by means of which the fixing levers 26 can be clamped to the housing of the limbs 2, 2, engage with the elongated holes 51.

(32) The clamping screw 25 engages through an opening of the housing wall of the limb 2, 2. A securing element, for example in the form of a wing nut 23, is screwed onto a threaded shaft of the clamping screw 25. The exemplary wing nut 23 supports itself on a washer. The securing element is arranged in a depression 24.

(33) A total of two or at least two clamping screws 25 are provided, wherein one of the two limbs 2, 2 can be pivotably blocked individually with respect to the central element 1 by means of each of the two clamping screws 25. Due to the fact that the two limbs 2, 2, however, are mechanically coupled to one another via toothings 29 engaging with one another, the two limbs 2, 2 can only pivot with respect to one another if both clamping screws 25 are released simultaneously.

(34) On their side facing upwards in the operating position, the limbs 2, 2 form bearing surfaces 10, which are aligned with one another and onto which a workpiece 50 to be cut can be placed. The depression 24 extends on a lower level than the stop surface 10 in such a way that the securing element 23 does not protrude beyond the plane, in which the bearing surface 10 extends. The depression 24 extends in a region, onto which a workpiece 50 can be placed when using the device.

(35) Each of the two limbs 2, 2 has one or at least one stop strip 5 comprising a contact surface 5 for contacting a workpiece or an edge of a workpiece 50. The contact surface 5 stands at a right angle to the bearing surface 10. One or at least one counter contact surface 6 is assigned so as to lie opposite to the contact surface 5. The counter contact surface 6 is formed by one or at least one counter stop 6, on which a different edge of the workpiece 50 can support itself.

(36) The stop strip 5 has an upper long narrow side and a lower long narrow side. Bores for inserting a securing screw extend in the two narrow sides. The stop strip 5 furthermore has short narrow sides. A short narrow side extends at a right angle to the contact surface 5. The other short narrow side extends so as to run obliquely to the contact surface 5, wherein the angle of inclination, which the short narrow side has to the contact surface 5, can have 45. At least two bores are preferably provided, wherein these two bores are arranged in the region of the respective end of the long narrow sides. The bores can have an identical or similar distance from the short outer edge of the contact surface 5.

(37) The counter stop 6 can be displaced in such a way that the distance of the contact surface 5 from the counter contact surface 6 can be set. An adjusting device, which can be actuated via a rotary knob 8, is provided for this purpose.

(38) The adjusting device has an adjusting spindle 7 extending in the adjusting direction, transversely to the extension of the contact surface 5, comprising an external thread. A collar, which forms an annular groove 12, adjoins the rotary knob 8, which is firmly connected to the adjusting spindle 7. The annular groove 12 is mounted in a recess 13 (see FIG. 2). The recess is open towards the top, thus towards the bearing surface 10, and is closed by the stop strip 5, which is secured in a releasable manner to the limb 2, 2.

(39) A slit 11, the slit width of which is greater than the diameter of the adjusting spindle 7, extends above the adjusting spindle 7 parallel to the adjusting spindle 7. The counter stop 6 is guided in the slit 11. For this purpose, the counter stop 6 has recesses 14 (see FIG. 4), with which a rim of the slit engages in each case.

(40) The counter stop 6 forms a foot 6, which is arranged below the level of the bearing surface 10 and in which a cage 16 is located, which receives a nut 9, in particular a square nut 9. The thread of the adjusting spindle 7 is screwed into this nut 9.

(41) The two side surfaces of the foot 6, which face away from one another, can touch ribs 15, which, on the one hand, can serve the purpose of reinforcing the housing of the limbs 2, 2, but, on the other hand, can also form a guide function for the counter stop 6.

(42) The function of the counter stops 6 can be described with reference to the FIGS. 11 and 12. The FIG. 11 shows a workpiece 50 in the form of a profile strip, which has an upper edge, which supports itself on the contact surface 5 and which has a lower edge, which supports itself on the counter contact surface 6. The workpiece 50 is thus held in an angular position between the two surfaces 6, 5. If the distance of the two surfaces 5, 6 is changed, the angular position of the workpiece 50 thus changes and, associated therewith, also the spatial angle, with which the cut is carried out by means of the saw 49.

(43) On its side facing away from the central element 1, the two limbs 2, 2 form front surfaces 19. The front surfaces are formed by the free ends of the limbs 2, 2.

(44) A dovetail groove 21, which is open towards the bottom but closed towards the bearing surface 10, is located on the front surface 19.

(45) Two bearing supports 20 are provided, which can be used as additional support means for supporting the workpiece 50 (see FIG. 11) or which are secured in a releasable manner to the free end 19 or the front surface, respectively (see FIG. 12). A protrusion 22, which comprises undercut side surfaces and which can be inserted into the dovetail groove 21, protrudes from a broadside surface of the bearing support 20. Other means for securing the bearing support 20 to the front surfaces 19 in a releasable manner can also be provided, for example, a pin can enter into an opening in a latching manner. It is also provided that the bearing support 20 is secured to the limb 2, 2 by means of a releasable threaded connection, in particular a screw.

(46) The top side of the bearing support 20 facing upwards forms a central region, which has the same height from a bottom plane, which the bearing surface 10 has as well. The central region is flanked by two humps 53, the distance of which can be the maximum distance of the counter stop 6 from the stop strip 5. The two bearing supports 20 can be formed by hollow bodies made of plastic.

(47) The maximum distance of the counter contact surface 6 from the contact surface 5 is greater than the minimum distance of the depression 24 from the contact surface 5. A tool to be cut can extend freely over the depressions 24 thereby.

(48) The bevel flanks 3 of the device are formed by rails 40, which extend in the lower region of the limbs 2, 2. They are connected to the limb 2, 2 in the region of the rear side of the limb 2, 2, which faces downwards. The bevel flanks 3 extend parallel to the housing longitudinal side of the limb 2, 2. The bevel flanks 3 formed by the outer edges of the rails 40 can lie flush in the housing longitudinal sides.

(49) The rails 40 have two elongated holes 41, which are located one behind the other in the direction of extension of the rails 40 and with which pins 42 engage, by means of which the rail 40 is connected to the respective limb 2, 2. The rails 40 can consist of metal.

(50) An end of the rail 40 facing the central element 1 forms a control slit 43, which runs at an angle to the elongated holes 41 and with which a control pin 45 engages, which is connected to the central element 1. When pivoting the limbs 2, 2 with respect to the central element 1, the control pin 45 can move in the control slit 43 in order to displace the rail 40 in the direction of its direction of extension relative with respect to the limb 2, 2 in this way. End sections 44 of the rails 40 thereby move towards one another or away from one another, respectively. In the 90 degree position of the two limbs 2, 2 illustrated in the FIGS. 7 and 8, the end sections 44 are spaced apart as far away from one another as possible. In the extended position illustrated in the FIG. 3, in which the limbs 2, 2 form a 180 degree angle to one another, the tips of the end sections 44 lie one on top of the other, which is a result of the slight height offset of the two rails 40. The two rails 40 are secured to the limbs 2, 2 so as to be height-offset by the material thickness thereof.

(51) If the limbs 2, 2 are displaced farther in the direction of the 270 degree position, then the end sections 44 glide rather one on top of the other, until the outer edges of the rails 40 intersect one another at a right angle in the 270 degree position illustrated in the FIGS. 9 and 10.

(52) Associated with the pivoting of the limbs 2, 2 from the 90 degree position into the 270 degree position, the rails 40 move in the direction of the free end 19 of the limb 2, 2 in each case.

(53) The stop strips 5 can likewise consist of plastic. The stop strips 5, however, are preferably also made of wood. On their sides facing one another, the stop strips 5 have narrow sides, which are cut diagonally and which have a distance from one another, which decreases when the limbs 2, 2 are brought from the 90 degree position into the 270 degree position. To be able to set an optimal width of the slit between the two stop strips 5 in each case, the stop strips 5 are arranged so as to be capable of being shifted or offset, respectively, with respect to the limbs 2, 2.

(54) The FIG. 2 shows securing screws 52, which are inserted in bores 48 of the stop strip 5. A total of two securing screws 52 are provided for one stop strip 5 in each case. The threaded shafts of the securing screws 52 engage through the elongated holes 47 extending in the bearing surface 10 and are screwed into a nut 46 in each case, wherein the nut 46 can be a square nut. By releasing the securing screws 52, the clamping function can be cancelled, so that the stop strip 5 can be shifted in its direction of extension.

(55) The bore, in which the securing screw 52 is located, has a diameter-large section 48, which is open towards the longitudinal side. In particular two diameter-large sections 48 are in particular provided for each bore, so that the stop strip 5 can also be used in a turned position. The stop strip 5 is thus assigned to the limb 2, 2 so as to be capable of being turned. A section 48, which has a smaller diameter, extends between the two diameter-large sections 48, so that the head of the securing screw 52 can support itself on the step between the section 48 of the bore and the upper bore section 48.

(56) The elongated hole 47 supplies only a limited path, by which the stop strip 5 can be shifted. To offset to stop strip 5 to a greater extent, the securing screw 52 can be released completely from the nut 46 and can be inserted into an adjacent bore 48. By offsetting the securing screw 52 from a first bore 48 into a second bore 48 directly adjacent to said first bore, the width of the slit between the two stop strips 5 can thus be changed gradually.

(57) With respect to its distance x, y, the FIGS. 13 to 17 show adjustable guide elements 31, which serve the purpose of guiding a saw or a knife, by means of which a miter cut can be created into a workpiece by using the device. The distance between the two guide elements and in particular between the sleeves 32 can have the small distance x illustrated in the FIGS. 13 and 14 or the large distance y illustrated in the FIG. 16 or 17.

(58) The central element 1 has elongated holes 57, through which a threaded section 66 of a shaft 33 of the guide elements 31 can engage in each case. An optionally provided sacrificial plate 38 or metal plate 38 can have congruent elongated holes 56, through which threaded sections 66 engage.

(59) In a region adjacent to the threaded sections 66, the shafts 33 have a circular cylindrical circumferential surface. Diameter-smaller threaded sections 66 protrude from this circular cylindrical lower section of the shafts 33, so that steps form, by means of which the shafts 33 can support themselves on the surface of the plate 38 facing upwards.

(60) The underside of the central element 1 has two depressions 55 arranged next to one another, which are connected to one another by means of a free space 65. Each of the two depressions 55 forms a polygonal recess 59. The polygonal recess 59 forms a first profile section 60, which is a square profile section, in which a square nut 58 is received in a rotationally fixed manner in a first rotational position, in which the axes 61 of the shafts 33 have a small distance x. The square profile section 16 forms three corner recesses 62, with which the polygonal corners of the polygonal nut 58 can engage in a rotationally fixed manner in a rotational position, as it is shown by the FIGS. 16 and 17. In this position, the central points 63 of the squares defined by the corner recess 62 have a greater distance than the central points 61 of the squares defined by the square profile sections 16.

(61) It can be seen from the FIG. 16 that the rotational position there is angularly offset by less than or more than 45 with respect to the rotational position illustrated in the FIG. 13. In the rotational position illustrated in the FIG. 16, corner regions 64 of the nuts 58 protrude beyond a central line M between the guide elements 31. The central line M represents the movement path of a tool, which is used to cut a workpiece by using the device.

(62) To reposition the guide elements 31, the shafts 33 are rotated about its axis. For this purpose, the front ends of the shafts 33 lying opposite the threaded sections 66 can have screwing tool engagement openings. By rotating the shafts, the threaded sections 66 are unscrewed from the internal threads of the nuts 58, so that, after removal from the depression 55, the nuts can be rotated about an angular amount, which can be less than 45 in the case of the exemplary embodiment.

(63) The above statements serve to describe the inventions, which are captured as a whole by the application and which further develop the prior art at least by means of the following feature combinations, in each case also independently, wherein two, several or all of these feature combinations can also be combined, namely:

(64) A device, which is characterized in that the distance between contact surface 5 and counter contact surface 6 can be adjusted by means of an adjusting element 7, 8, 9.

(65) A device, which is characterized in that the adjusting element 7, 8, 9 has an adjusting spindle 7, which can be rotated by a rotary knob 8 and which is secured to the limb 2 in a rotatable but axially firm manner, wherein the thread of the adjusting spindle 7 engages with a nut 9, which is mounted in a foot 6 of the counter stop 6, which foot 6 protrudes into a slit 11 in a bearing surface 10 of the limb 2.

(66) A device, which is characterized in that rims of the slit 11 engage with recesses 14 of the foot 6 and/or that the foot 6 is guided between two ribs 15 extending below the bearing surface 10 and/or that an annular groove 12 of the adjusting spindle 7 lies in a recess 13 of the limb 2, 2, which is open on one side, which recess 13 is closed from an underside of the stop strip 5 and/or that the annular groove 12 is directly adjacent to the rotary knob 8.

(67) A device for carrying out miter cuts, comprising two limbs 2, 2, which are secured to a central element 1 in a pivotable manner in each case and so as to be fixable in pivoted positions, wherein each limb 2, 2 has a free end 19, to which a bearing support 20 is secured in a releasable manner.

(68) A device, which is characterized in that securing means, by means of which the bearing support 20 is secured to the free end 19, have a dovetail groove 21, with which a protrusion 22 having undercut flanks engages.

(69) A device, which is characterized in that the dovetail groove 21 is open towards an underside of the limb 2, 2 facing away from a bearing surface 10 of the limb 2, 2 and is closed towards its side facing the bearing surface 10.

(70) A device, which is characterized in that the bearing support 20 has a depression 55, which is flanked by two humps or protrusions 53 and which is aligned with a bearing surface 10 in a position of the bearing support 20 secured to the limb 2, 2.

(71) A device, which is characterized in that the limbs 2, 2 and the central element 1 are made of plastic and a region of the central element 1, from which the guide elements 31, 32, 33 originate and which extends at least over the region between the guide elements 31, 32, 33, either has a metal plate 38 or an exchangeable sacrificial plate 38.

(72) A device, which is characterized in that the metal plate 38 or sacrificial plate 38 lies in a depression 39 of the central element 1 and/or that the metal plate 38 or sacrificial plate 38 has openings, through which pivot axes 30 extend, by means of which ends 35 of the limbs 2, 2 are pivotably hinged to the central element 1.

(73) All of the disclosed features (alone but also in combination with one another) are essential for the invention. The disclosure content of the corresponding/enclosed priority documents (copy of the prior application) is herewith also included in its entirety in the disclosure of the application, also for the purpose of adding features of these documents into claims of the present application. With their features, the subclaims characterize, even without the features of a referenced claim, separate inventive further developments of the prior art, in particular in order to file divisional applications on the basis of these claims. The invention specified in each claim can additionally have one or several of the features, which are in particular provided with reference numerals in the above description and/or which are specified in the list of reference numerals. The invention also relates to designs, in the case of which individual features of the features mentioned in the above description are not realized, in particular insofar as they are evidently dispensable for the respective intended purpose or can be replaced by other technically equivalent means.

(74) TABLE-US-00001 List of Reference Numerals 1 central element 2 limb 2 limb 3 bevel flank 4 rearward flank 4 rearward flank 5 stop strip 5 contact surface 6 counter stop 6 counter contact surface 6 foot 7 adjusting spindle 8 rotary knob 9 nut 10 bearing surface 11 slit 12 annular groove 13 recess 14 recess 15 rib 16 cage 17 side wall 18 cavity 19 free end, front surface 20 bearing support 21 dovetail groove 22 protrusion 23 actuating element, wing nut 24 depression 25 clamping screw 26 fixing lever 27 rotary bearing 28 pivot arm 29 toothing 30 pivot axis 31 guide pin 32 sleeve 32 front end 33 shaft 34 spring tongue 34 protrusion 35 acute-angled end 35 side wall 36 nook 37 nook 38 sacrificial plate, metal plate 39 recess 40 rail 41 elongated hole 42 pin 43 control slit 44 end section 45 control pin 46 nut 47 elongated hole 48 bore 48 upper bore section 49 saw 50 workpiece 51 elongated hole 52 securing screw 53 hump 54 annular groove 55 depression 56 elongated hole 57 elongated hole 58 square nut 59 polygonal recess 60 square profile section 61 central point 62 corner recess 63 central point 64 corner 65 free space 66 threaded section x distance y distance M central line