Narrow backrest electric seat mechanical extension device
US12396558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2023 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | May 21, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A narrow backrest electric seat mechanical extension device is provided, which comprises mechanical extension units, a rear driving piece and a front drive piece, wherein each mechanical extension unit comprises a leg assembly, a back assembly and a seat panel, the back assembly is provided with an eleventh connector, a front support piece, a tenth connector, a ninth connector, an eighth connector, a seventh connector, a sixth connector, a fifth connector, a fourth connector, a third connector, a second connector, a first connector, a backrest support plate, a backrest fixing plate, a rear supporting piece and a backrest return spring, the driving device is hinged with the rear drive piece, and the rear drive piece is fixed with the sixth connector; the driving device is hinged with the front drive piece, and the front drive piece is connected to the leg assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.