Automatic wheelchair brake system and wheelchair including same
US7434824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2003 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Sep 15, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B5/049
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automatically engageable and releasable brake apparatus adaptable to be attached to a wheelchair is provided, including a connection mechanism adapted to be positioned on a rear frame portion of the wheelchair frame, a seat actuation member adapted to be positioned on the wheelchair seat, a brake actuating member coupled to the connection mechanism and in fluid communication with the seat actuation member defining a closed fluid system therewith, and a brake member coupled to the brake actuating member and adapted to contact a ground surface on which the wheelchair is located. Occupational ingress into the wheelchair causes fluid to flow from the seat actuation member to the brake actuating member, which causes the brake member to move from a first position in substantial contact with the ground surface on which the wheelchair is located to a second position spaced a distance above the ground surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.