Seat belt retractor and seat belt apparatus including the same
US8950819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/405
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
During an emergency, in one form of a retractor having a spool, external teeth of a pawl provided at a spool right side end are made to mesh with some of internal teeth provided on a frame, and, with load acting on a seat belt, a spool left side end is brought into contact with a spool pushing portion. Since the spool left side end tends to be moved further in a direction of seat belt load with the load acting on the seat belt, the spool pushing portion pushes the spool left side end, whereby some of external teeth come into contact with internal teeth provided on the frame and fit deeply into gaps between adjacent ones of the internal teeth. Thus, some of the external teeth of the spool effectively come into mesh with the respective internal teeth of the frame with a simple movement of the spool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.