Multi-position vehicle tailgate assembly

Information

  • Patent Grant
  • 6267429
  • Patent Number
    6,267,429
  • Date Filed
    Friday, October 27, 2000
    23 years ago
  • Date Issued
    Tuesday, July 31, 2001
    22 years ago
Abstract
A multi position tailgate assembly (10) includes a tailgate (14), at least one hinge element (16), moveable between a closed position (20), and an opened position (22), and at least one cable element having a first end attached to an automobile and a second end attached to the hinge element (16). The assembly allows the tailgate to be opened to a first position when the hinge element is closed and a second, lower or angled position, when the hinge element is open.
Description




TECHNICAL FIELD




The present invention relates generally to a multi-position vehicle tailgate assembly, and more particularly to a multi-position tailgate assembly utilizing cable extensions and anchored brackets.




BACKGROUND OF THE INVENTION




Automotive vehicles, such as pickup trucks, often have a tailgate attached to the vehicle body to allow access to a cargo bed area. When opened, a pair of cables are commonly used to retain the tailgate in an open position. The tailgate in the open position is typically held in approximate horizontal position. In the horizontal position, however, it can be difficult to load or unload large or heavy objects from the cargo bed area due to the high clearance height of the open tailgate.




Other difficulties loading large and heavy objects can arise from the use of ramps used to transport the object to the height of the tailgate and cargo bed area. When balancing ramps on the edge of a tailgate, a variety of difficulties can arise. Often, the distance between the edge of the tailgate and the position where the ramp is placed on the ground is great enough to cause excessive deflection in the ramp as objects are moved across it towards the cargo bed. In addition, when the object reaches the edge of the tailgate, overlap between the edge of the ramp and the edge of the tailgate can result in the ramp being “kicked up” when the object passes the edge of the tailgate. This is also highly undesirable. Finally, when unloading objects from the cargo bay area, such objects can potentially catch the edge of the ramp that extends past the edge of the tailgate and thereby knock the ramp out of position. All of the above situations can lead to difficulty loading and unloading large and heavy objects.




It is known that the aforementioned difficulties may be reduced by allowing the tailgate to be positioned in a secondary, non-horizontal position wherein the tailgate itself acts partially or completely as a ramp. Commonly, however, such a secondary position has been accomplished by simply detaching the cable supports from the truck bed. Detaching the cable supports, however, can produce its own set of problems. Contact between the tailgate and the rear bumper of the car can cause damage to the tailgate appearance especially when heavy forces are applied to the tailgate. In addition, improper reattachment of the support cables can pose a hazard to the truck operator during future use. Finally, permanent attachment of the cables can potentially allow a more sturdy rugged design.




It would, therefore, be highly desirable to have a multi-position tailgate assembly that provided the known loading and unloading functionality of such an angled tailgate but that did not require the detachment of the cables. In addition, it would be highly desirable to have a multi-position tailgate assembly that minimized potential damage to the tailgate, could be moved between positions with relative ease, and was sturdy and robust.




SUMMARY OF THE INVENTION




It is, therefore, an object of the present invention to provide a rugged multi-position tailgate assembly with simplicity of use, simplicity of construction, and that provides protection for the tailgate's outer panel.




In accordance with the objects of the present invention, a multi-position tailgate assembly is provided. The multi-position tailgate assembly includes a tailgate, two hinge elements attached to the tailgate, and a pair of cables securing the hinge elements to the truck bed.




The hinge elements move between an open position and a closed position. When the hinge elements are in the closed position, the tailgate is held in a primary open position. When the hinge elements are in the open position, the tailgate is held in a secondary open position.




Other objects and features of the present invention will become apparent when viewed in light of the detailed description of the preferred embodiment when taken in conjunction with the attached drawings and appended claims.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an illustration of a multi-position tailgate assembly in accordance with one embodiment of the present invention, with the tailgate in the primary open position;





FIG. 2

is an illustration of the multi-position tailgate assembly of

FIG. 1

with the tailgate in the secondary open position;





FIG. 3

is a cross-sectional illustration of a multi-position tailgate assembly as shown in

FIGS. 1 and 2

;





FIG. 4

is an illustration of a hinge element for use in the multi-position tailgate assembly in accordance with the present invention;





FIG. 5

is a side view of the hinge element illustrated in

FIG. 4

;





FIG. 6

is a top view of the hinge element illustrated in

FIG. 4

; and





FIG. 7

is an illustration of a multi position tailgate assembly in accordance with one embodiment of the present invention, with the tailgate in the primary open position.





FIG. 8

is an illustration of a multi position tailgate assembly in accordance with another embodiment of the present invention, with the tailgate in the primary open position.











DESCRIPTION OF THE PREFERRED EMBODIMENT(S)




Referring now to

FIG. 1

, there is shown an illustration of a multi-position tailgate


10


in accordance with one embodiment of the present invention. The multi-position tailgate assembly


10


is illustrated mounted on an automobile


12


with the tailgate


14


in the primary open position. In this example, the primary open position corresponds to the tailgate


14


being coplanar with the vehicle cargo bed


13


, approximately parallel to the ground. Multi-position tailgate assembly


10


further includes a pair of hinge elements


16


mounted to the tailgate


14


. A pair of cable elements


18


attach to the automobile


12


on one end and attach to the hinge elements


16


on the opposing end, thereby supporting the tailgate


14


in the primary open position. It should be understood, however, that in an alternate embodiment (as seen in

FIG. 7

) the hinge element


16


may be alternately mounted on the automobile


12


and the cables


18


may be attached on one end to the hinge element


16


and to the tailgate


14


on the opposing end. In another embodiment (as seen in

FIG. 8

) hinge elements


16


may be mounted on both the automobile


12


and the tailgate


14


. In this embodiment, the cables


18


are attached on one end to a hinge element


16


on the tailgate


14


and to a hinge element


16


on the automobile


12


on the opposing end. This allows for a plurality of tailgate open positions.




Referring now to

FIG. 2

, there is shown on an illustration of a multi-position tailgate assembly


10


in accordance with the present invention. The multi-position tailgate assembly


10


is shown in its secondary open position. In the secondary open position, the tailgate


14


is held at an angle relative to the vehicle cargo bed


13


to facilitate the loading and unloading of the cargo bed


13


. The primary open position of the tailgate illustrated in FIG.


1


and the secondary open position of the tailgate illustrated in

FIG. 2

are achieved through the use of the hinge elements


16


.




As illustrated in

FIG. 3

, the hinge elements


16


are moveable between a closed position


20


and an open position


22


. When the hinge elements


16


are in the closed position


20


, the tailgate


14


is held in the primary open position. When the hinge elements


16


are moved into the opened position


22


, the effective length of the connection between the tailgate


14


and the vehicle


12


is extended thereby resulting in the tailgate


14


opening to the secondary open position. In this way, a tailgate assembly with a multi-position is achieved.




Referring now to

FIG. 4

, there is shown an illustration of a hinge element


16


for use in the present invention. Although a specific embodiment of a hinge element


16


is illustrated, it should be understood that a wide variety of hinge elements


16


are both known in the prior art and contemplated by this invention. The illustrated hinge element


16


includes a rotatable member


24


. The rotatable member


24


has a rotatably fixed end


26


and a free end


28


, which pivots about the fixed end


26


.




The cable element


18


is attached to the hinge element


16


by connecting it to the free end


28


of the rotatable member


24


. The hinge element


16


illustrated in

FIG. 4

shows the rotatable member


24


in both the closed position


20


and the opened position


22


.




The hinge element


16


may further include a lock element


30


. The lock element


30


can be used to hold the rotatable member


24


in the closed position


20


. Although a variety of lock elements


30


are possible, in one embodiment, the lock element


30


includes a tab


32


that engages a slot


34


formed in the rotatable member


24


such that the rotatable member


24


is held in the closed position


20


when the lock element


30


is engaged. The lock element


30


, the tab


32


, and the slot


34


are further illustrated in

FIGS. 5 and 6

for clarity.




The hinge element


16


may additionally include a spring element


36


. Spring element


36


may be used to bias the rotating member


24


into the closed position


20


. By biasing the rotating member


24


into the closed position


20


, it becomes easier for an operator to engage or disengage the locking element


30


. Although spring element


36


is shown, it should be understood that the spring element


36


is not required to practice the present invention. In addition, although the hinge element


16


and the cable elements


18


have been illustrated and described in pairs, it should be understood that the present invention can be practiced using only a single cable


18


and a single hinge


16


.




While the invention has been described in connection with one or more embodiments, it is to be understood that the specific mechanisms and techniques which have been described are merely illustrative of the principles of the invention, numerous modifications may be made to the methods and apparatus described without departing from the spirit or scope of the invention as defined by the appended claims.



Claims
  • 1. A multi-position tailgate assembly for use on an automobile comprising:a tailgate; at least one hinge element, said at least one hinge element moveable between a closed position and an opened position, said at least one hinge element positioned on said tailgate; and at least one cable element, said at least one cable element having a first end attached to the automobile, and a second end attached to said at least one hinge element; wherein when said at least one hinge element is in said closed position, said tailgate is held in a primary open position and when said at least one hinge element is in said open position, said tailgate is held in a secondary open position.
  • 2. A multi tailgate assembly as described in claim 1 wherein said hinge element includes a rotatable member, said rotatable member having a rotatably fixed end and a free end pivotable about said fixed end, said at least one cable element attaching to said free end.
  • 3. A multi-position tailgate assembly as described in claim 1 further comprising a lock element, said lock element holding said at least one hinge element in said closed position when said locked element is engaged.
  • 4. A multi-position tailgate assembly as described in claim 1 further comprising a spring element, said spring element biasing said hinge element towards said closed position.
  • 5. A multi-position tailgate assembly as described in claim 1 wherein said at least one hinge element includes two hinges.
  • 6. A multi-position tailgate assembly as described in claim 5 wherein said at least one cable element includes two cables.
  • 7. A multi-position tailgate assembly as described in claim 3 wherein said lock element comprises:a rotatable member including a slot; and a moveable tab member adapted to engage said slot and prevent movement of said rotatable member.
  • 8. A multi-position tailgate assembly as described in claim 1, further comprising:at least one additional hinge element positioned on the automobile, wherein said first end of said at least one cable element attaches to the automobile by way of attaching to said at least one additional hinge element.
  • 9. A multi position tailgate assembly for use on an automobile comprising:a tailgate; at least one hinge element, said at least one hinge element moveable between a closed position and an opened position, said at least one hinge element positioned on said automobile; and at least one cable element, said at least one cable element having a first end attached said tailgate, and a second end attached to said at least one hinge element; wherein when said at least one hinge element is in said closed position, said tailgate is held in a primary open position and when said at least one hinge element is in said open position, said tailgate is held in a secondary open position.
  • 10. A multi tailgate assembly as described in claim 9 wherein said hinge element includes a rotatable member, said rotatable member having a rotatably fixed end and a free end pivotable about said fixed end, said at least one cable element attaching to said free end.
  • 11. A multi-position tailgate assembly as described in claim 9 further comprising a lock element, said lock element holding said at least one hinge element in said closed position when said locked element is engaged.
  • 12. A multi-position tailgate assembly as described in claim 9 further comprising a spring element, said spring element biasing said hinge element towards said closed position.
  • 13. A multi-position tailgate assembly as described in claim 9 wherein said at least one hinge element includes two hinges.
  • 14. A multi-position tailgate assembly as described in claim 13 wherein said at least one cable element includes two cables.
  • 15. A multi-position tailgate assembly as described in claim 11 wherein said lock element comprises:a rotatable member including a slot; and a moveable tab member adapted to engage said slot and prevent movement of said rotatable member.
  • 16. A multi-position tailgate assembly as described in claim 9, further comprising:at least one additional hinge element positioned on said tailgate, wherein said first end of said at least one cable element attaches to said tailgate by way of attaching to said at least one additional hinge element.
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