Device for reducing spring tension in a belt strap
US4216922A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1978 |
| Grant date | Aug 12, 1980 |
| Priority date | — |
| Expiry date | Jul 11, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/44
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a device for reducing spring tension in a belt strap, particularly in a belt retractor for safety belts in motor vehicles, comprising a winding shaft and a return spring secured in a housing, the device including means for producing a force acting against the tension of the spring, the means being couplable with the winding shaft through a coupling means, the improvement comprising a spring housing mounted so as to be freely rotatable on the shaft, a pivot bearing of a wheel rotatably disposed on the spring housing, the wheel being in driving arrangement through the coupling means with the winding shaft and with the retractor housing, and a release member operable for releasing the coupling means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.