Wheelchair backrest and rear wheel assembly
US11021013B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Aug 23, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B2200/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system of bracket assemblies for a wheelchair comprises a pair of bracket assemblies adapted to be connected to respective sides of a seat frame of the wheelchair. Each of the bracket assemblies has a base adapted to be secured to a seat frame member of the seat frame, an arm adapted to be secured to a backrest frame member of a backrest frame, and a pivot pivotally connecting the base to the arm for rotational movement of the arm relative to the base. One or more blocking mechanism blocks the rotational movement of the arm relative to the base in a use orientation of the backrest frame. A rod having opposed ends connected to the base of the pair of the bracket assemblies for spacing the bracket assemblies away from one another. A rear wheel unit is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.