Manual wheelchair propulsion system
US12115110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2019 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Oct 10, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2300/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A propulsion system for a manual wheelchair includes a mounting clamp and a propulsion drive unit having a drive wheel assembly and a support suspension. The support suspension is configured to provide linear movement of the drive wheel and drive hub assembly relative to the manual wheelchair. The support suspension includes a linear bearing and slide member assembly having at least one linear bearing and a slide member for accommodating the linear movement of the drive wheel assembly and further includes a resilient suspension member that provides a tractive effort force to the drive wheel. The drive wheel assembly is supported on a carriage that is attached to one of the at least one linear bearing or the slide member and a mounting block is attached to the other. The mounting block has a clamp interface with a locating tab that engages a corresponding mounting slot in the mounting clamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.