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| United States Patent | 4735454 |
| Link to this page | http://www.wikipatents.com/4735454.html |
| Inventor(s) | Bernard; John N. (10950 Darryl Dr. #297, Baton Rouge, LA 70815) |
| Abstract | A bifold loading ramp that is interchangeable with the tailgate of a pickup
truck. A ramp consisting of two halves that are hinged in the middle with
the upper half having existing tailgate latch assemblies welded to it, so
as to allow it to attach to the bed of a pickup truck in the same manner
as the tailgate. The latch assemblies hold the ramp in the vertical
position when locked. When unlocked it pivots to a horizontal position
being held in position by the existing tailgate support brackets making
for a tailgate extension. When the tailgate support brackets are unhooked
the ramp can then be unfolded forming a gradually inclined ramp from the
ground to the bed of the truck. |
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Title Information  |
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| Publication Date |
April 5, 1988 |
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| Filing Date |
December 31, 1984 |
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Title Information  |
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Public's "Guesstimation" of Royalty Value
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Market Review  |
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Technical Review  |
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Claims  |
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What I now claim is:
1. In a pickup truck having a rear bumper and a conventional tailgate
mounted to the rear of the truck and having hardware for mounting the
tailgate,
the improvement comprising a tailgate assembly interchangeable with the
conventional tailgate and employing said hardware for mounting said
tailgate assembly,
said tailgate assembly comprising an upper member and a lower member each
having front and rear sides,
the front side of said upper member being pivotally attached to the pickup
truck to allow the member to pivot from a vertical position to an extended
position,
the front side of said lower member is hingedly attached to the rear side
of said upper member,
said lower member being foldable against the upper member such that when
said upper member is in a vertical position the members form a tailgate
for the truck, and in a horizontal position the members form a truck bed
extension with the rear end of the lower member resting on the rear bumper
of the truck,
the members being unfoldable to be extended rearwardly to form a loading
ramp for the truck. |
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Claims  |
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Description  |
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BACKGROUND
The present invention relates to a loading ramp that is interchangeable
with the tailgate of a pickup requiring no alterations of the tailgate nor
the tailgate mounting devices.
DESCRIPTION OF THE PRIOR ART
Pickup trucks have become very expensive vehicles. Often used as the only
family vehicle. They are beautifully designed both interior and exterior.
This same pickup is often used to transport recreational vehicles,
lawnmowers, and other cargo. This invention simplifies the loading and
unloading of such cargos without alterations of or damage to the tailgate
or the truck bed.
Other state of the art ramps, either encompass the use of the tailgate, as
in Wilson U.S. Pat. No. 3,352,440, or bolted to the bed of the truck as in
D'Eath U.S. Pat. No. 2,727,781.
The ramps that attach to the tailgate often result in damage to the
tailgate upon installation, while in use, or during transport. Some also
cause a storage problem as they must be stored in the bed of the truck
with the cargo.
The ramps that are bolted cause damage to the truck bed upon installation
and are difficult to operate.
The prior art discloses no ramp that is interchangeable with the tailgate
making installation and use quick and easy with no storage problem, while
at the same time when removed leaves the truck bed and tailgate with no
damage.
SUMMARY
A pickup truck loading ramp is presented. The ramp is interchangeable with
the tailgate. The ramp utilizes the existing tailgate mounting hardware.
When finished with the ramp the tailgate is simply reinstalled to the
original mounts and has not been damaged nor altered in any manner. The
ramp serves a secondary purpose when in the intermediate position. The
ramp provides a pickup truck bed extension. This is useful when
transporting overlength loads such as lumber. This ramp presents no
storage problem as it becomes the tailgate when folded to the vertical
position.
DRAWING SUMMARY
FIG. 1 is a side view of the ramp in its loading position.
FIG. 2 is a top view of FIG. 1.
FIG. 3 is a side view shown fully folded in the upright or vertical
position.
FIG. 4 is an enlarged view of the latch assembly with which the ramp is
locked onto the pickup bed.
FIG. 5 is a side view of the ramp in the intermediate or horizontal
position.
DETAILED DESCRIPTION
This invention has two main sections, the upper section 2 and the lower
section 3, constructed of square tubing or similar materials, hinged
together to form a bifold ramp 2,3 that is attached to the pickup truck
bed 4 in the same manner in which the tailgate is attached to the pickup
truck.
When the ramp 2,3 is in the stored position FIG. 3 it is folded and secured
into place in the vertical position by the tailgate latch assemblies 6 and
the tailgate pivot mounts 5.
When the invention is in the intermediate position FIG. 5, it is folded,
and the upper section 2 is attached by the tailgate support bracket 1
connected to the support bracket pin 7 and the tailgate pivot mounts 5.
The lower section 3 just simply rests on the bumper. The invention is now
in a horizontal plane parallel to the bed of the truck 4 acting as a truck
bed extension.
When the invention is in the fully extended position FIG. 1, it is now
unfolded forming a ramp 2,3 from the ground to the bed of the truck 4. It
is connected to the truck by just the tailgate pivot mounts 5.
To convert from the vertical position FIG. 3 to the intermediate position
FIG. 5, you simply unlatch the tailgate latch assemblies 6, and swing the
ramp down.
To convert to the ramp position FIG. 1 from the intermediate position FIG.
5, you simply disconnect the support brackets 1 from the pins 7.
It will of course be understood that various changes may be made in the
form, detail, arrangement, and proportions to accomodate the various types
of tailgate mounting hardware for the various types of pickups without
departing from the scope of my invention.
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Description  |
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