Collapsible conveyance folding transport chair folding wheelchair
US7077422B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 26, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Sep 3, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2205/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A collapsible, foldable support structure and conveyance has a frame assembly with multiple interconnected frame members, junction blocks located at intersecting ends of some of the frame members, and wheels attached to the junction blocks or directly to frame members. Fixtures are attached to or integrally formed with the junction blocks for mounting of wheels or other conveyances or components to the frame assembly. A support structure is attached to the frame assembly to support a load such as a human or cargo or both. In a folded configuration, the frame members are moved into a generally parallel arrangement and the junction blocks and conveyances attached to the junction blocks or frame members are drawn together. In one embodiment, two of the frame members are hinged, and the junction block associated with the hinged frame member is able to slide over the hinge. The hinged frame members also serve as a foot rest support when the frame assembly is in an unfolded configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.