In-hub braking system for manual wheelchairs
US8622178B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 10, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Sep 24, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B5/048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An in-hub braking system for a wheelchair comprises a brake shell fixed against rotation movement in relation to a wheelchair frame. A wheelchair drive wheel having a hub supporting a braking system is supported for rotational movement in relation to the brake shell. A lever is operatively connected to the braking system for activating that braking system to cause the braking system to frictionally engage the brake shell. A push rim, which when urged forward, rotates the drive wheel in a forward direction to propel the wheelchair in a forward direction. When urged rearward together with the drive wheel, the push rim rotates with the drive wheel in a rearward direction to propel the wheelchair in a rearward direction. The push rim is operatively connected to the lever so that the push rim, which when urged rearward independent of the drive wheel, operates the lever to activate the braking system to frictionally engage the brake shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.