This invention relates to covers that enclose the bed area of a pickup truck. Tonneau covers are usually hard or soft covers that enclose bed of a pickup truck and protect that area from rain, snow and other weather elements.
The present invention is a pickup-truck bed cover which incorporates elements of both low-profile tonneau covers and solid-wall canopies. This convertible design transforms from several inches flat to a full height canopy in seconds—all while providing solid-wall, insulated security in either the expanded or collapsed position. In addition, the cover is designed to be safely driven down the road while either expanded or collapsed.
In the collapsed position, this cover provides outstanding driver visibility and a sleek low-profile appearance. It is preferably constructed of aluminum tread-plate, which provides a durable and attractive finish that compliments trucks of any color. Although the cover is only a few inches high in the collapsed position, in the expanded position it provides nearly four feet of interior height and cargo capacity superior to that of many fixed canopies.
There are five main components to the design: the frame, top cover, right sidewall, left sidewall and rear door. The sidewalls and rear door stow inside and under the top cover. The top cover pivots open which allows access to un-stow the rear door. The sides then pivot up to form the canopy. This design maintains the ability to store cargo below the bed sill height in either configuration, with access through the truck rear tailgate or canopy rear door.
The cover is generally rectangular in shape. It is several inches wider than the open bed of the pickup-truck. A preferably “U” shaped frame is affixed to the truck bed—along both sides and across the front of the bed. One half of a hinge rests along each of these three sides. The hinge along the forward edge of the frame attaches to the forward edge of the top cover and allows the cover to pivot open. Hinges along the left and right sides of the frame are attached to the left and right sidewall panels and allow each sidewall to pivot to a vertical position.
The left and right sides of the top cover have straight and level lower edges which are bent 90 degrees outward to rest on the upper edges of the truck bed. The top of the top cover is flat and level, parallel to the lower edges of the top cover sides. There is a slope at the front of the top cover beginning at the lower forward corner progressing upward and aft. This slope allows the cover to pivot open without intersecting the cab or rear window of the truck. The slope is of such an angle that it is generally vertical when the cover is in the expanded position.
On the aft portion of the top cover, there is another slope. This slope tapers from the upper surface of the top cover aft and downward to the rear edge of the cover. The slope is of such an angle that it is directly horizontal in the expanded position. This slope allows the aft portion of the cover to taper for better driver visibility and aerodynamics, yet provides a flat and level design element when expanded.
Two gas-filled lift struts are positioned inside the top cover. One end of each strut is attached near the forward side of the frame, and the other end is attached to the inner surface of the top cover side. These struts are located in such a position and geometry as to assist in raising open the cover and holding it up. The sidewalls are designed with the lift struts positioned between the inner panels of the sidewalls, and the sides of the top cover, which allows the lift struts to be hidden from view (from both the inside and the outside) when the sidewalls are expanded.
Attached to the upper surface of the top cover are two tiedown rails. These provide several hardpoints to secure oversize items carried on top of the cover. The bolts that attach these rails to the top cover also bolt through to the internal bracing in the roof of the top cover.
All components of this design overlap each other in both the expanded and collapsed positions to keep water out. A piece of flashing is located at the forward edge of each rail which prevents water from entering near the forward edge of the sides. Additional water intrusion is prevented by a series of seals. This overlapping component design, however, provide an inherent deterrent to leaks well beyond the dependence on seals.
Although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention, the physical embodiments herein disclosed merely exemplify the invention which may be embodied in other specific structures. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims.
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There are five main components to the design: the frame 11 (discussed with reference to
The top cover 12 is preferably equipped with tiedown rails 14. The tiedown rails 14 provide several hardpoints to secure oversize items carried on top of the cover. Bolts (not shown) attach tiedown rails 14 to the top cover 12.
A plurality of windows 16 are optionally provided on the top cover 12, and sidewalls 24. Handles 18 are also provided on various locations, preferably the rear door 28 and a rear portion 38 of the top cover 12 for movement, lifting or lowering of those parts.
Left and right sides 26 of the top cover 12 have preferably straight and level lower edges which are bent 90 degrees outward to rest on rails 2 of the truck bed. The top portion 12B of the top cover 12 is preferably flat and level, parallel to the lower edges of the top cover sides 26. There is preferably a slope 12C at the front of the top cover 12 beginning at the lower forward corner progressing upward and aft. This slope 12C allows the cover to pivot open without intersecting the cab or rear window of the truck. The slope 12C is preferably of such an angle that it is directly vertical when the cover 10 is in the expanded position.
On the aft portion of the top cover 12, there is another slope 12A. This slope 12A tapers from top portion 12B of the top cover 12 aft and downward to the rear edge of the cover 10. The slope 12A is of such an angle that it is preferably horizontal in the raised position. This slope 12A allows the aft portion of the cover to taper for better driver visibility and aerodynamics, yet provides a flat and level design element when raised.
Two preferably gas-filled lift struts 22 (only one is visible in
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From this view, it is evident that the sidewalls 24 are shaped complimentary along their top edge to the profile of the top cover 12, notably where the surfaces 12A and 12B of the top cover 12 are slanted. Similarly, the profile of the sidewalls 24 are shaped complimentary to the two-plane profile of the rear access panel 28. This allows for a tight fit and aids structural stability of the convertible pickup canopy 10.
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The foregoing is considered as illustrative only of the principles of the invention. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims.
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