Collapsible wheelchair
US12016804B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 23, 2022 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Nov 23, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/0866
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments of the present disclosure provide a collapsible wheelchair, including: a movable chassis; a chair; a chair backrest; at least one first folding mechanism, installed between the movable chassis and the chair; and at least one second folding mechanism, connected between the chair and the chair backrest; where, the at least one first folding mechanism and the at least one second folding mechanism are connected in series and both have a four-rod linkage structure, and when the collapsible wheelchair is switched from a folded state to an open state or from the open state to the folded state, the at least one first folding mechanism and the at least one second folding mechanism are configured to move simultaneously. The collapsible wheelchair provided by the present disclosure is convenient in terms of the operation and easy to operate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.