Locking wheelchair lift
US5605431A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1996 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Aug 7, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G3/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wheelchair lift, as for use with a vehicle, includes a platform for receiving a wheelchair carried as a pivot mechanism including two pairs of cooperating parallelogram structures adopted to be affixed to a vehicle for moving the platform between loading, entry and stowed positions by hydraulic actuation. A bridge plate structure is actuated by the pivot mechanism to be positioned as a bridge into the vehicle in the entry position, as a roll stop when a wheelchair is being carried and as a latch unit in the stowed position. A cam-cable mechanism actuates the bridge plate and the parallelogram structures of each pair are interlocked in moving between the stowed and entry positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.