Hydraulic wheelchair lift
US4121695A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G3/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Wheelchair lift for a van-type vehicle having a pivotable frame which may be swung from within to without the vehicle, a slide frame telescopically movable relative to the swing frame and a wheelchair supporting platform carried at the lower end of the slide frame. The platform is pivotable to and from a horizontal position in an upright folded position, generally coplanar with the swing frame so that the entire assembly is disposed within the vehicle. A hydraulic ram having a power stroke in one direction and a return stroke in the opposite direction provides means for taking up cables disposed on opposite sides of the swing frame and is operatively connected to both the side frame and the platform. The power stroke of the ram causes the slide and the platform carried thereby to be raised from the ground level to the floor level of the vehicle for transfer of a wheelchair to and from the platform of the vehicle. The power stroke of said ram also causes the pivotal movement of the platform to its folded position after the weight of the wheelchair has been removed from the platform. Mechanisms are provided which, upon the movement of the platform to its folded position, cause mechan…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.