Cargo ramp
US6250874A · kind A · utility
Inventor
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/43
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A ramp assembly for loading/unloading pickup trucks which includes at least one pair of hinged panel members across which, when fully extended, cargo can be transferred. Mounted on a truck in such a way that both panel members are disposed rearwardly of its open tailgate, the ramp assembly includes a "T"-shaped support and a "L"-shaped hitch arm. In the latter, two branches of disparate length extend perpendicularly to each other. The longer branch is slideably engageable with a conventional class II or, alternately, class III hitch receiver; the shorter terminates in a transverse opening. Prior to use, the "T"-shaped support, upon its having a leg thereof inserted through this opening, is coupled with the shorter branch. Secured atop the support are bearing posts which extend upwardly therefrom and define holes for slideably receiving an elongated shaft. Likewise, the pair of panel members terminate, at one end, in plates which define holes for slideably receiving the shaft so that not only can the panel members be rotatably supported thereon but also their position relative to the bearing posts can be varied horizontally. To lock the panel members in a fully extend position, two …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.