Vehicle seat
US9174557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2011 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Mar 4, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An S-spring 14 is provided in a state of tension between a pair of seat back frames 10 constituting a vehicle seat 1. A support section 16a of a bracket 16 fixed to the seat back frame 10 supports a part of an end of the S-spring 14 from behind. The support section 16a is formed with a length equal to or greater than one pitch of the S-spring 14 in a no-load state and discontinuously supports center portions α of the S-spring 14. When a load equal to or greater than a predetermined level acts on the S-spring 14, the S-spring 14 is stretched to cause the center portions α to be dislocated from the support sections 16a, and as a result, the length of a deflectable portion of the S-spring 14 is changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.