Seat belt retractor
US7025297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Aug 3, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/288
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat belt retractor has a spool mounted for rotation on the retractor, for retraction or payout of seat-belt webbing depending upon the rotation direction of the spool. The spool is locked against rotation when a crash condition is sensed. A force limiter allows further payout of the seat belt webbing after the spool shaft has locked, under the influence of a vehicle occupant's forward momentum. The force limiter has a first resilient component attached in the force path between the spool and the locking component. A second resilient component is a wire releasably held in the force path between the spool and the locking component by a locking plate engaged with the locking component. The wire is released from the force path by disengagement between the locking plate and the locking component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.