Three-wheeled competition wheelchair having an adjustable center of mass
US5480172A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jul 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A three-wheeled competition wheelchair apparatus (10) including a wheelchair frame (11) having a beam (12) extending generally from an aft portion to a fore portion thereof. A seat assembly (15) includes a seat frame (16) carried by and supported on the wheelchair frame (11). A footrest assembly (17) includes a seat support post (20, 20') having one end movably mounted to the seat frame (16), and an opposite end, carrying footrest plates (21, 21), which is movably mounted longitudinally along the frame beam (12). The three-wheeled competition wheelchair (10) permits selective adjustment of the footrest assembly (17) between the fore and the aft position of the beam (12). Hence, the cumulative center of gravity of the wheelchair apparatus (10) and the occupant can be moved closer to effect the cumulative moment of inertia about the wheelchair pivoting vertical axis to enable more stable and shorter radius turning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.