Adjustable hinge assembly for automobile tailgate

1. A hinge assembly, comprising:

a first mounting plate mounted to a body of an automobile;

a first hinge member attached to the first mounting plate;

a second mounting plate mounted to a tailgate of the automobile;

a second hinge member attached to the second mounting plate and hingedly connected to the first hinge member;

a first adjustment screw coupling the first hinge member to the first mounting plate and adapted to adjust the position of the first hinge member on the first mounting plate in the x-direction;

a second adjustment screw coupling the first hinge member to the first mounting plate and adapted to adjust the position of the first hinge member on the first mounting plate in the y-direction; and

a third adjustment screw coupling the second hinge member to the second mounting plate and adapted to adjust the position of the second hinge member on the second mounting plate in the z-direction,

wherein the x and y-directions are in a plane parallel to the first mounting plate, and the x, y, and z-directions are approximately orthogonal to each other when the hinge assembly is in a closed configuration.

2. The hinge assembly of claim 1 , wherein the first mounting plate comprises:

a flat, planar body including a mounting means for the first hinge member,

a first adjustment tab extending perpendicularly away from the planar body and defining a first open aperture, the first open aperture having a center axis in the x-direction and a major axis in the y-direction, and

a second adjustment tab extending perpendicularly away from the planar body and defining a second open aperture, the second open aperture having a center axis in the y-direction and a major axis in the x-direction.

3. The hinge assembly of claim 2 , wherein the first hinge member comprises a base mounted to the first mounting plate and a hinge arm extending perpendicularly from the base, the hinge arm defining a first threaded hole in alignment with the first open aperture, where the first adjustment screw passes through the first open aperture and thread engages the first threaded hole.

4. The hinge assembly of claim 3 , wherein the first hinge member further comprises a wall extending perpendicularly from the base and defining a second threaded hole in alignment with the second open aperture, where the second adjustment screw passes through the second open aperture and thread engages the second threaded hole.

5. The hinge assembly of claim 3 , wherein the distal end of the hinge arm defines a hole, where a shaft passing through the hole hingedly connects the first hinge member to the second hinge member.

6. The hinge assembly of claim 3 , wherein the base of the first hinge member is mounted to the first mounting plate by one of bolts and mounting posts disposed on the first mounting plate and nuts.

7. The hinge assembly of claim 1 , wherein the second mounting plate comprises:

a flat, planar body including a mounting means for the second hinge member, and

an adjustment tab extending perpendicularly away from the planar body and defining an open aperture, the open aperture having a center axis in the z-direction.

8. The hinge assembly of claim 7 , wherein the second hinge member comprises a base mounted to the second mounting plate and a hinge arm extending perpendicularly from the base, the base defining a threaded adjustment hole in alignment with the open aperture of the second mounting plate, where the third adjustment screw passes through the open aperture of the second mounting plate and thread engages the threaded hole of the second hinge member.

9. The hinge assembly of claim 8 , wherein the distal end of the hinge arm of the second hinge member defines a hole, where a shaft passing through the hole hingedly connects the second hinge member to the first hinge member.

10. The hinge assembly of claim 8 , wherein the base of the second hinge member is mounted to the second mounting plate by one of bolts and mounting posts disposed on the first mounting plate and nuts.

11. The hinge assembly of claim 1 , wherein the first mounting plate defines holes through which the first mounting plate is mounted to the body of the automobile.

12. The hinge assembly of claim 1 , wherein the second mounting plate defines holes through which the second mounting plate is mounted to the tailgate of the automobile.

13. The hinge assembly of claim 1 , wherein

the first mounting plate comprises:

a flat, planar body including a mounting means for the first hinge member,

a first adjustment tab extending perpendicularly away from the planar body and defining a first open aperture, where the first open aperture has a center axis in the x-direction and a major axis in the y-direction, and

a second adjustment tab extending perpendicularly away from the planar body and defining a second open aperture, where the second open aperture has a center axis in the y-direction and a major axis in the x-direction;

wherein the first hinge member comprises:

a first base mounted to the first mounting plate,

a first hinge arm extending perpendicularly from the base, the first hinge arm defining a first threaded hole in alignment with the first open aperture, where the first adjustment screw passes through the first open aperture and thread engages the first threaded hole, and

a wall extending perpendicularly from the base and defining a second threaded hole in alignment with the second open aperture, where the second adjustment screw passes through the second open aperture and thread engages the second threaded hole,

wherein the second mounting plate comprises:

a flat, planar body including a mounting means for the second hinge member, and

a third adjustment tab extending perpendicularly away from the planar body and defining a third open aperture, the third open aperture having a center axis in the z-direction,

wherein the second hinge member comprises:

a second base mounted to the second mounting plate, the second base defining a third threaded hole in alignment with the third open aperture, where the third adjustment screw passes through the third open aperture and thread engages the third threaded hole, and

a second hinge arm extending perpendicularly from the base.

14. The hinge assembly of claim 13 , wherein the distal end of the first hinge arm defines a hole, and the distal end of the second hinge arm defines a hole, where a shaft is positioned through the holes at the ends of the first and second hinge arms hingedly connecting the first and second hinge members.

15. The hinge assembly of claim 13 , wherein the first hinge member is mounted to the first mounting plate and the second hinge member is mounted to the second mounting plate by one of bolts and mounting posts disposed on the first mounting plate and nuts.

16. A method for installing and adjusting a tailgate on an automobile, comprising the steps of:

providing the hinge assembly of claim 1 ;

mounting the first mounting plate to a body of the automobile; and

mounting the second mounting plate to the tailgate.

17. The method of the claim 16 , further comprising the step of adjusting the position of the tailgate on the automobile by using the first, second, and third adjustment screws.

18. The method of claim 16 , wherein the mounting steps is/are accomplished by using adhesive, welding, and/or fasteners.

19. A vehicle tailgate assembly, comprising:

a tailgate;

a first mounting plate mounted to a body of an automobile;

a first hinge member attached to the first mounting plate;

a second mounting plate mounted to the tailgate;

a second hinge member attached to the second mounting plate and hingedly connected to the first hinge member;

a first adjustment screw coupling the first hinge member to the first mounting plate and adapted to adjust the position of the first hinge member on the first mounting plate in the x-direction;

a second adjustment screw coupling the first hinge member to the first mounting plate and adapted to adjust the position of the first hinge member on the first mounting plate in the y-direction; and

a third adjustment screw coupling the second hinge member to the second mounting plate and adapted to adjust the position of the second hinge member on the second mounting plate in the z-direction,

wherein the x and y-directions are in a plane parallel to the first mounting plate, and the x, y, and z-directions are approximately orthogonal to each other when the hinge assembly is in a closed configuration.

20. The tailgate assembly of claim 19 , wherein

the first mounting plate comprises:

a flat, planar body including a mounting means for the first hinge member,

a first adjustment tab extending perpendicularly away from the planar body and defining a first open aperture, where the first open aperture has a center axis in the x-direction and a major axis in the y-direction, and

a second adjustment tab extending perpendicularly away from the planar body and defining a second open aperture, where the second open aperture has a center axis in the y-direction and a major axis in the x-direction;

wherein the first hinge member comprises:

a first base mounted to the first mounting plate,

a first hinge arm extending perpendicularly from the base, the first hinge arm defining a first threaded hole in alignment with the first open aperture, where the first adjustment screw passes through the first open aperture and thread engages the first threaded hole, and

a wall extending perpendicularly from the base and defining a second threaded hole in alignment with the second open aperture, where the second adjustment screw passes through the second open aperture and thread engages the second threaded hole,

wherein the second mounting plate comprises:

a flat, planar body including a mounting means for the second hinge member, and

a third adjustment tab extending perpendicularly away from the planar body and defining a third open aperture, the third open aperture having a center axis in the z-direction,

wherein the second hinge member comprises:

a second base mounted to the second mounting plate, the second base defining a third threaded hole in alignment with the third open aperture, where the third adjustment screw passes through the third open aperture and thread engages the third threaded hole, and

a second hinge arm extending perpendicularly from the base.