초록 ▼

A gooseneck coupler may be used on a towing vehicle to help tow certain types of towed vehicles, such as trailers. The gooseneck coupler may include a first tube, a base member attached to the first tube, and a locking member pivotally attached to the base member—the locking member being capable of

A gooseneck coupler may be used on a towing vehicle to help tow certain types of towed vehicles, such as trailers. The gooseneck coupler may include a first tube, a base member attached to the first tube, and a locking member pivotally attached to the base member—the locking member being capable of engaging a hitch ball. The gooseneck coupler may also include a locking mechanism attached to the locking member, where the locking mechanism is capable of securing the locking member in engagement with the hitch ball.

대표청구항 ▼

1. A gooseneck coupler comprising: a first tube;a base member attached to the first tube;a locking member pivotally attached to the base member about a fixed pivot, wherein the locking member is capable of engaging a hitch ball; anda locking mechanism directly attached to the locking member, wherein

1. A gooseneck coupler comprising: a first tube;a base member attached to the first tube;a locking member pivotally attached to the base member about a fixed pivot, wherein the locking member is capable of engaging a hitch ball; anda locking mechanism directly attached to the locking member, wherein the locking mechanism is capable of securing the locking member in engagement with the hitch ball. 2. The gooseneck coupler of claim 1, wherein the base member comprises a base plate with a cavity and the locking member comprises a blade or plate generally positioned within the cavity of the base plate. 3. The gooseneck coupler of claim 1, wherein the base member comprises a base plate and the locking member comprises a locking plate. 4. The gooseneck coupler of claim 3 further comprising a second tube telescopingly engaged with the first tube, wherein the first tube is positionable relative the second tube from a retracted position to an extended position. 5. The gooseneck coupler of claim 4, wherein the first tube is capable of retracting into the second tube until the base plate is adjacent the second tube. 6. The gooseneck coupler of claim 4, wherein the locking mechanism does not obstruct retraction of the first tube into the second tube. 7. The gooseneck coupler of claim 4, wherein at least a portion of the second tube extends below at least a portion of the locking mechanism when the first tube is in the retracted position. 8. The gooseneck coupler of claim 4, wherein the locking mechanism is attached to the locking plate at a position on the locking plate wherein retraction of the first tube within the second tube is limited by the base plate. 9. The gooseneck coupler of claim 3, wherein the locking mechanism is axially moveable from a locked position to an unlocked position. 10. The gooseneck coupler of claim 9, wherein the locking mechanism comprises a handle that is axially moveable from the locked position wherein the handle engages the base plate to the unlocked position wherein the handle is released from the base plate. 11. The gooseneck coupler of claim 3, wherein the locking mechanism is axially and rotationally moveable from a locked position to an unlocked position. 12. The gooseneck coupler of claim 11, wherein the locking mechanism further includes a handle and a tang attached to the handle, wherein the handle is axially and rotationally moveable from the locked position wherein the tang engages the base plate to the unlocked position wherein the tang is released from the base plate. 13. The gooseneck coupler of claim 12, wherein the tang includes a wedge portion wherein the wedge portion aids entry of the tang into a slot of the base plate when the locking mechanism is in the locked position. 14. The gooseneck coupler of claim 3, wherein the locking mechanism is rotatable from a locked position pivotally locking the locking plate relative to the base plate to secure engagement of the hitch ball to an unlocked position allowing pivotal movement of the locking plate relative to the base plate to thereby release the locking plate from engagement with the hitch ball. 15. The gooseneck coupler of claim 14 wherein the locking mechanism comprises: a handle rotatably attached to the locking plate;a cam coupled to the handle, wherein rotation of the handle axially rotates the cam; anda blade attached to the cam, wherein the blade is capable of engaging the base plate to secure the locking plate in engagement with the hitch ball. 16. The gooseneck coupler of claim 15, wherein the locking mechanism further includes a spring telescopingly engaged with the handle. 17. The gooseneck coupler of claim 16, wherein the spring works in torsion to bias the handle and blade toward the locked position under a predetermined load. 18. The gooseneck coupler of claim 15, wherein the blade is at least a partial helically shaped blade. 19. The gooseneck coupler of claim 15, wherein the base plate further includes a slot and wherein the blade engages the slot when the locking mechanism is rotated to the locked position and the blade disengages the slot when the locking mechanism is rotated to the unlocked position. 20. The gooseneck coupler of claim 15, wherein rotating the handle further toward the locked position further engages the locking plate with the hitch ball. 21. The gooseneck coupler of claim 3, wherein the base plate further includes a socket capable of engaging a hitch ball and further including at least one lubrication track located in the base plate capable of transporting lubricant to a point of engagement of the socket and the hitch ball. 22. A gooseneck coupler comprising: at least one tube;a base plate attached to the at least one tube;a locking plate pivotably attached to the base plate about a fixed pivot; anda locking mechanism rotatable from a locked position pivotally locking the locking plate relative to the base plate to secure engagement with a hitch ball to an unlocked position allowing pivotal movement of the locking plate relative to the base plate to thereby release the locking plate from engagement with the hitch ball. 23. The gooseneck coupler of claim 22, wherein the base plate includes a single point lockable device capable of accepting a lock to secure the locking plate in engagement with the hitch ball. 24. The gooseneck coupler of claim 23, wherein the single point lockable device comprises an aperture located in the base plate. 25. The gooseneck coupler of claim 22, further comprising at least one lubrication track integrally formed in the base plate. 26. The gooseneck coupler of claim 22, wherein the at least one tube further comprises a first tube and a second tube wherein the first tube is telescopingly engaged with the second tube and positionable from a retracted position to an extended position within the second tube. 27. The gooseneck coupler of claim 26, wherein the first tube in the retracted position projects above the second tube. 28. The gooseneck coupler of claim 26, wherein the first tube includes an end portion and the second tube includes an end portion wherein the end portion of the first tube in the retracted position is at a substantially same height as the end portion of the second tube. 29. The gooseneck coupler of claim 26, wherein the second tube projects above the first tube when the tube is in the retracted position. 30. The gooseneck coupler of claim 22, wherein the fixed pivot includes a lubrication fitting. 31. The gooseneck coupler of claim 22, wherein the locking mechanism is attached to the locking plate. 32. The gooseneck coupler of claim 31, wherein the locking mechanism comprises: a handle attached to the locking plate, wherein the handle is rotatable from the locked position to the unlocked position;a cam coupled to the handle; anda blade attached to the cam, wherein as the handle is rotated to the locking position the blade engages the base plate pivotally locking the locking plate relative to the base plate to secure engagement of the locking plate with the hitch ball. 33. The gooseneck coupler of claim 22, wherein the base plate further comprises an opening sized to receive the hitch ball and the opening includes a clinch wherein the hitch ball is wedged between the clinch and the locking plate when the locking mechanism is in the locking position. 34. The gooseneck coupler of claim 22, wherein the locking plate further includes a bottom surface wherein the bottom surface is contoured to substantially mimic the hitch ball. 35. The gooseneck coupler of claim 22, wherein the locking mechanism engages the base plate to pivotally lock the locking plate relative to the base plate. 36. The gooseneck coupler of claim 22, wherein the locking mechanism is attached to the base plate. 37. The gooseneck coupler of claim 22, wherein the locking mechanism is axially and rotatably moveable relative to the locking plate from the locked position to the unlocked position. 38. A gooseneck coupler comprising: a tube;a base plate attached to the tube, the base plate having a lower surface;a locking plate pivotally attached to the base plate wherein the locking plate is pivotable from a locked position securing the locking plate relative to the base plate to engage with a hitch ball to an unlocked position allowing pivotal movement of the locking plate relative to the base plate to thereby release the locking plate from engagement with the hitch ball;a locking mechanism directly attached to the locking plate, wherein the locking mechanism secures the locking plate in the locked position; anda lubrication track formed in the lower surface of the base plate. 39. The gooseneck coupler of claim 38, wherein the lubrication track is capable of transferring a lubricant to the engagement of the locking plate and the hitch ball. 40. The gooseneck coupler of claim 38, further comprising a pivot, wherein the pivot pivotally attaches the locking plate to the base plate. 41. The gooseneck coupler of claim 40, wherein the pivot includes a lubrication fitting. 42. The gooseneck coupler of claim 41, wherein the lubrication fitting is capable of accepting a lubricant and transferring the lubricant to the engagement of the locking plate and the hitch ball. 43. The gooseneck coupler of claim 38, wherein the lubrication track is integrally formed in the base plate. 44. A gooseneck coupler comprising: a base plate;a locking plate pivotally attached to the base plate about a fixed pivot, wherein the locking plate is capable of engaging a hitch ball;a locking mechanism directly attached to the locking plate, wherein the locking mechanism is capable of securing the locking plate in engagement with the hitch ball;an inner tube attached to the base plate;an outer tube engaged with the inner tube, the inner tube being positionable from a retracted position wherein the inner tube projects above the outer tube to an extended position. 45. The gooseneck coupler of claim 44, wherein the base plate is adjacent the second tube when the first tube is in the retracted position. 46. The gooseneck coupler of claim 44, wherein the locking mechanism does not obstruct retraction of the first tube into the second tube. 47. The gooseneck coupler of claim 44, wherein the locking mechanism is axially moveable from a locked position to an unlocked position. 48. The gooseneck coupler of claim 44, wherein the locking mechanism is axially and rotationally moveable from a locked position to an unlocked position. 49. The gooseneck coupler of claim 44, wherein the locking mechanism is rotatable from a locked position pivotally locking the locking plate relative to the base plate to secure engagement of the hitch ball to an unlocked position allowing pivotal movement of the locking plate relative to the base plate to thereby release the locking plate from engagement with the hitch ball. 50. The gooseneck coupler of claim 49 wherein the locking mechanism comprises: a handle rotatably attached to the locking plate;a cam coupled to the handle, wherein rotation of the handle axially rotates the cam; anda blade attached to the cam, wherein the blade is capable of engaging the base plate to secure the locking plate in engagement with the hitch ball. 51. The gooseneck coupler of claim 44, wherein the inner tube in the retracted position projects above the outer tube. 52. The gooseneck coupler of claim 44, wherein the outer tube projects above the inner tube when the inner tube is in the extended position.