Object lifting, pulling and digging apparatus
RE048744 · 2021-09-21
Assignee
Inventors
Cpc classification
International classification
Abstract
An object lifting, pulling and digging apparatus has a pair of jaws that can be opened to enable positioning the jaws around a post, tree, and/or bush then closed around the post, tree, and/or bush. The jaws can then be raised to pull the post, tree, and/or bush from the ground. The jaws of the apparatus can also be closed and angled downwardly to drive the distal ends of the jaws into the ground, where the jaws can then be moved upwardly to dig the post, tree, and/or bush from the ground. The apparatus can easily be attached to a vehicle equipped with a universal quick attach hitch and having auxiliary hydraulics, for example, a “skid steer” type farm or construction vehicle.
Claims
1. An object lifting, pulling and digging apparatus comprising: a base; a first jaw having a length with opposite proximal and distal ends, the first jaw .[.being constructed as.]. .Iadd.pivotally coupled to the base and including .Iaddend.a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw; a second jaw having a length with opposite proximal and distal ends, the second jaw .[.being constructed as.]. .Iadd.pivotally coupled to the base and including .Iaddend.a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw, .[.a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base; a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;.]. a first saw tooth section secured on a top surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally .Iadd.flat .Iaddend.panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw; a second saw tooth section secured to a top surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw; and, an actuator .[.connected to at least one of the first jaw and the second jaws.]. .Iadd.configured to pivot at least one of the first jaw or the second jaw relative to the base.Iaddend..
2. The apparatus of claim 1, further comprising: .[.the.]. .Iadd.a .Iaddend.first pin connecting the first jaw to the base for pivoting movement of the first jaw about the first pin between a closed position of the first jaw relative to the base and an open position of the first jaw relative to the base; .[.the.]. .Iadd.a .Iaddend.second pin connecting the second jaw to the base for pivoting movement of the second jaw about the second pin between a closed position of the second jaw relative to the base and an open position of the second jaw relative to the base; the first jaw has a straight section of gripping teeth and a curved section of gripping teeth; the second jaw has a straight section of gripping teeth and a curved section of gripping teeth; and, the straight section of gripping teeth of the first jaw engage with the straight section of gripping teeth of the second jaw when the first jaw and the second jaw are in their closed positions relative to the base and the curved section of gripping teeth of the first jaw and the curved section of gripping teeth of the second jaw do not engage with each other when the first jaw and the second jaw are moved to their closed positions relative to the base.
3. The apparatus of claim 2, further comprising: the curved section of gripping teeth of the first jaw being arranged along a curved line; and, the curved section of gripping teeth of the second jaw being arranged along a curved line.
4. The apparatus of claim 1, further comprising: the actuator having a housing at one end of the actuator and a rod at an opposite end of the actuator, the housing being .[.connected.]. .Iadd.coupled .Iaddend.to the first jaw and the rod being .[.connected.]. .Iadd.coupled .Iaddend.to the second jaw.
5. The apparatus of claim 1, further comprising: a first digging tooth removably attached to the first jaw; and, a second digging tooth removably attached to the second jaw.
6. The apparatus of claim 1, further comprising: a first set of saw teeth on the first saw tooth section projecting generally vertically from the first jaw, a vertical projection of the first set of saw teeth from the first jaw increases as the first set of saw teeth extends from the distal end of the first jaw toward the first pin; and, a second set of saw teeth on the second saw tooth section projecting generally vertically from the second jaw, a vertical projection of the second set of saw teeth from the second jaw increases as the second set of saw teeth extends from the distal end of the second jaw toward the second pin.
7. The apparatus of claim 1, further comprising: a first set of gear teeth on the first jaw; and, a second set of gear teeth on the second jaw, the first set of gear teeth and the second set of gear teeth meshing with each other.
8. The apparatus of claim 1, further comprising: a protective box on the base, the protective box having a top wall, a bottom wall opposite the top wall, a first side wall extending between the top wall and the bottom wall on one side of the protective box, a second side wall extending between the top wall and the bottom wall on a second, opposite side of the protective box; and, the actuator is positioned in the protective box and is protected by the protective box from the environment of the apparatus in use.
9. The apparatus of claim 1, further comprising: .[.the.]. .Iadd.a .Iaddend.first pin connecting the first jaw to the base for pivoting movement of the first jaw about the first pin between a closed position of the first jaw relative to the base and an open position of the first jaw relative to the base; .[.the.]. .Iadd.a .Iaddend.second pin connecting the second jaw to the base for pivoting movement of the second jaw about the second pin between a closed position of the second jaw relative to the base and an open position of the second jaw relative to the base; a key tab on one of the first jaw and the second jaw; a key slot on an other of the first jaw and the second jaw; and, the key tab and the key slot being configured where with the first and second jaws moved to their closed positions for a digging operation, the key tab engages inside the key slot and securely attaches the first jaw and the second jaw together and prevents their moving relative to each other during a digging operation.
10. An object lifting, pulling and digging apparatus comprising: a base; a first jaw having a length with opposite proximal and distal ends, the first jaw .[.being constructed as.]. .Iadd.pivotally coupled to the base and including .Iaddend.a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw; a second jaw having a length with opposite proximal and distal ends the second jaw .[.being constructed as.]. .Iadd.pivotally coupled to the base and including .Iaddend.a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw; .[.a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base; a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;.]. a first saw tooth section secured on a .[.too.]. .Iadd.top .Iaddend.surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw; a second saw tooth section secured to a top surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw; an actuator .[.connected.]. .Iadd.coupled .Iaddend.to at least one of the first jaw and the second jaw; a first gear tooth section .[.on.]. .Iadd.positioned proximate to the base and rotating in concert with .Iaddend.the first jaw; a second gear tooth section .[.on.]. .Iadd.positioned proximate to the base and rotating in concert with .Iaddend.the second jaw; and, the first gear tooth section and the second gear tooth section being in mesh.
11. The apparatus of claim 10, further comprising: the first pin connecting the first jaw to the base for pivoting movement of the first jaw about the first pin between a closed position of the first jaw relative to the base and an open position of the first jaw relative to the base; the second pin connecting the second jaw to the base for pivoting movement of the second jaw about the second pin between a closed position of the second jaw relative to the base and an open position of the second jaw relative to the base; the first jaw has a straight section of gripping teeth and a curved section of gripping teeth; the second jaw has a straight section of gripping teeth and a curved section of gripping teeth; and, the straight section of gripping teeth of the first jaw engage with the straight section of gripping teeth of the second jaw when the first jaw and the second jaw are in their closed positions relative to the base and the curved section of gripping teeth of the first jaw and the curved section of gripping teeth of the second jaw do not engage with each other when the first jaw and the second jaw are moved to their closed positions relative to the base.
12. The apparatus of claim 10, further comprising: a first digging tooth removably attached to the first jaw; and, a second digging tooth removably attached to the second jaw.
13. The apparatus of claim 10, further comprising: a first set of saw teeth on the first saw tooth section projecting generally vertically from the first jaw, a vertical projection of the first set of saw teeth from the first jaw increases as the first set of saw teeth extends from the distal end of the first jaw toward the first pin; and, a second set of saw teeth on the second saw tooth section projecting generally vertically from the second jaw, a vertical projection of the second set of saw teeth from the second jaw increases as the second set of saw teeth extends from the distal end of the second jaw toward the second pin.
14. The apparatus of claim 10, further comprising: a protective box on the base, the protective box having a top wall, a bottom wall opposite the .[.too.]. .Iadd.top .Iaddend.wall, a first side wall extending between the .[.too.]. .Iadd.top .Iaddend.wall and the bottom wall on one side of the protective box, a second side wall extending between the .[.too.]. .Iadd.top .Iaddend.wall and the bottom wall on a second, opposite side of the protective box; and, the actuator is positioned in the protective box and is protected by the protective box from the environment of the apparatus in use.
15. The apparatus of claim 10, further comprising: the first pin connecting the first jaw to the base for pivoting movement of the first jaw about the first pin between a closed position of the first jaw relative to the base and an open position of the first jaw relative to the base; the second pin connecting the second jaw to the base for pivoting movement of the second jaw about the second pin between a closed position of the second jaw relative to the base and an open position of the second jaw relative to the base; a key tab on one of the first jaw and the second jaw; a key slot on an other of the first jaw and the second jaw; and, the key tab and the key slot being configured where with the first and second jaws move to their closed positions for a digging operation, the key tab engages inside the key slot to securely attach the first jaw and the second jaw together and prevent their moving relative to each other during a digging operation.
16. An object lifting, pulling and digging apparatus comprising: a base; a first jaw having a length with opposite proximal and distal ends, the first jaw having a straight section of gripping teeth and a curved section of gripping teeth, first jaw .Iadd.pivotally coupled to the base and having a section .Iaddend.being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw; a second jaw having a length with opposite proximal and distal ends, the second jaw having a straight section of gripping teeth and a curved section of gripping teeth, the second jaw .Iadd.pivotally coupled to the base and having a section .Iaddend.being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw; .[.a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base; a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;.]. a first saw tooth section secured on a .[.too.]. .Iadd.top .Iaddend.surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw; a second saw tooth section secured to a .[.too.]. .Iadd.top .Iaddend.surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw; and, an actuator .[.connected to at least one of the first jaw and the second jaw.]. .Iadd.configured to selectively pivot the first jaw relative to the second jaw.Iaddend..
17. The apparatus of claim 16, further comprising: a first set of saw teeth projecting generally vertically from the first jaw, a vertical projection of the first set of saw teeth from the first jaw increases as the first set of saw teeth extends from the distal end of the first jaw toward .[.the.]. .Iadd.a .Iaddend.first pin .Iadd.pivotally coupling the first jaw to the base.Iaddend.; and, a second set of saw teeth projecting generally vertically from the second jaw, a vertical projection of the second set of saw teeth from the second jaw increases as the second set of saw teeth extends from the distal end of the second jaw toward .[.the.]. .Iadd.a .Iaddend.second pin .Iadd.pivotally coupling the second jaw to the base.Iaddend..
18. The apparatus of claim 16, further comprising: a first set of gear teeth on the first jaw; and, a second set of gear teeth on the second jaw, the first set of gear teeth and the second set of gear teeth meshing with each other.
19. The apparatus of claim 16, further comprising: a protective box on the base, the protective box having a top wall, a bottom wall opposite the .[.too.]. .Iadd.top .Iaddend.wall, a first side wall extending between the top wall and the bottom wall on one side of the protective box, a second side wall extending between the top wall and the bottom wall on a second, opposite side of the protective box; and, the actuator is positioned in the protective box and is protected by the protective box from the environment of the apparatus in use.
20. The apparatus of claim 16, further comprising: .[.the.]. .Iadd.a .Iaddend.first pin connecting the first jaw to the base for pivoting movement of the first jaw about the first pin between a closed position of the first jaw relative to the base and an open position of the first jaw relative to the base; .[.the.]. .Iadd.a .Iaddend.second pin connecting the second jaw to the base for pivoting movement of the second jaw about the second pin between a closed position of the second jaw relative to the base and an open position of the second jaw relative to the base; a key tab on one of the first jaw and the second jaw; a key slot on an other of the first jaw and the second jaw; and, the key tab and the key slot being configured where with the first and second jaws move to their closed positions for a digging operation, the key tab engages inside the key slot to securely attach the first jaw and the second jaw together and prevent their moving relative to each other during a digging operation.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
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(10) Referring to
(11) A brush guard assembly 36 is attached to the top of the base 12. The brush guard assembly 36 provides protection to the operator of the vehicle to which the apparatus 10 is attached when pulling or digging up posts, trees, bushes, etc. using the apparatus.
(12) A first jaw 42 having a length with opposite proximal and distal ends and a second jaw 44 having a length with opposite proximal and distal ends are attached to the front surface 14 of the base 12. Both of the jaws 42, 44 are constructed as generally flat panels having elongate lengths that extend from proximal portions 46, 48 of the respective first 42 and second 44 jaws to distal portions 52, 54 of the respective first 42 and second 44 jaws. As shown in
(13) A first cylindrical pivot tube 56 is attached to the first jaw 42. The pivot tube 56 has an interior bore that extends completely through the pivot tube and through the first jaw 42. The pivot tube 56 separates the first proximal portion 46 and the first distal portion 52 of the first jaw 42 with a majority of the length of the first jaw extending along the first distal portion 52 forwardly from the first pivot tube 56.
(14) A second pivot tube 58 is attached to the second jaw 44. The second pivot tube 58 also has an interior bore that extends completely through the second pivot tube and through the second jaw 44. The second pivot tube 58 separates the second proximal portion 48 and from the second distal end 54 of the second jaw 44 with a majority of the length of the second jaw 44 extending along the second distal portion 54 forwardly from the second pivot tube 58.
(15) A first pin 62 connects the first jaw 42 to the front surface 14 of the base 12 for pivoting movement of the first jaw about the first pin between an open position and a closed position of the first jaw relative to the base. The first pin 62 extends through the pivot hole 32 through the top wall shown to the left in
(16) A second pin 62 connects to the second jaw 44 to the front surface 14 of the base 12 for pivoting movement of the second jaw about the second pin between an open position and a closed position of the second jaw relative to the base. The second pin 64 extends through the pivot hole 32 in the box top wall 22 shown to the right in
(17) A single linear actuator 72 is connected between the first proximal portion 46 of the first jaw 42 and the second proximal portion 48 of the second jaw 44. The actuator 72 shown in
(18) The first proximal portion 46 of the first jaw 42 is formed with a first gear tooth section 84. The second proximal portion 48 of the second jaw 44 is formed with a second gear tooth section 86. These can be seen in
(19) The first distal portion 52 of the first jaw 42 is formed with a generally vertically oriented first saw tooth section 92. The first saw tooth section 92 is constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at the distal end of the triangular configuration of the first saw tooth section 92 adjacent the apex of the triangular configuration of the first jaw 42, to a base of the triangular configuration of the first saw tooth section 92 at a proximal portion of the first saw tooth section adjacent the proximal portion 46 of the first jaw 42. The first saw tooth section 92 is secured to the top surface of the first jaw 42 and projects vertically upward from the length of the first jaw 42 as can be seen in
(20) Referring to
(21) Referring to
(22) Referring to
(23) Referring to
(24) As various modifications could be made in the construction of the apparatus and its method of operation herein described and illustrated without departing from the scope of the invention, it is intended that all matter contained in the foregoing description or shown in the accompanying drawings shall be interpreted as illustrative rather than limiting. Thus, the breadth and scope of the present disclosure should not be limited by any of the above described exemplary embodiments, but should be defined only in accordance with the following claims appended hereto and their equivalents.