Backrest assembly for wheelchair with reclining seat
US10238558B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2015 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | May 18, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/74
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a backrest assembly for a wheelchair with a backrest frame pivotally connected to a seat or seat frame, a carrying means provided by or attached to the backrest frame, a rotating means rotatable secured to the carrier means, a first sliding means slidable connected to the backrest frame on the rear side of the backrest assembly and connected to the rotating means via a first mechanical link, a second sliding means slidable secured to the backrest frame on the front of the backrest assembly and connected to the rotating means via a second mechanical link, and an actuator for adjusting the backrest assembly between an upright and reclined position with the actuator being connected to the first sliding means for driving the second sliding means via the rotating means to perform a sinusoidal movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.