Vehicle seat and angle adjustment device thereof
US11247587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2018 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/2227
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle seat and an angle adjustment device are provided. The angle adjustment device includes an unlock cam, a ratchet wheel provided with internal teeth, and a plurality of slide blocks disposed circumferentially and provided with external teeth. The angle adjustment device further includes a plurality of extension and retraction blocks corresponding to the slide blocks, wherein the extension and retraction block is capable of driving the slide block to move outwards in a radial direction so as to engage the internal teeth with the external teeth. A second elastic member is provided between two adjacent extension and retraction blocks, and two ends of the second elastic member in a deformation direction are respectively connected to the unlock cam and the extension and retraction block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.