Tiltable vehicle loading ramp
US4023852A · kind A · utility
Inventor
Key dates
| Filing date | Apr 2, 1976 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Apr 2, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D53/062
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tiltable rear bed portion of a flat bed vehicle including a pair of slotted restraining arms disposed under and along a pair of parallel, spaced bed supporting frames. The arms are pivotally attached on their rear ends to vertical support arms suspended from the frame members on the rear bed portion and are slidably disposed through rectangular slots in a pair of vertical support arms suspended from the frame members on the horizontal forward bed portion. The restraining arms are slotted on the underside of their forward end portions to securely lock within the forward vertical support arms when the rear bed portion is in the horizontal load carrying position. A steel pull rod actuated rocker arm assembly is manually operated by a lever to lift the restraining arms clear of their locked restraining positions in the forward support arms to permit the restraining arms to slide forward through the forward vertical support arms as the rear bed portion is lowered from the horizontal load carrying position to an inclined loading position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.