Seat belt retractor
US3944163A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1974 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Mar 18, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/3535
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat belt retracting apparatus having a spool mounted for rotation on a frame member and adapted to have a seat belt wound thereon, a pair of locking wheels having a plurality of locking teeth and fixedly mounted on the spool, a locking plate engageable with the locking teeth of the locking wheels when the seat belt is protracted and engages the body of a passenger thereby locking the seat belt against further protraction, and a retracting coil spring normally urging the spool in the retracting direction. In the apparatus, lock preventing means are provided for cooperation with the locking wheels through a driving connection between them so that the locking wheels can be temporarily prevented from the locked position and can protract over some pre-selected steps in the state in which the seat belt is engaged on the passenger's body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.