Seat belt retractor with a belt extension controlled force limiting
US8123154B2 · kind B2 · utility
5Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2006 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/288
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat belt retractor for motor vehicles with a vehicle-sensitive or belt webbing sensitive controllable locking device, or both, for the belt shaft, having a profiled head that acts as a support for a displaceably mounted locking member that locks the belt shaft in the housing, and a two-stage force limiting device having two force limiting elements that are switchable between a high level and a low level of force limitation via an interposed coupling (19, 20) that is controlled by means of a control device having a countergear which determines an amount of belt webbing that is extended from the belt shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.