Belt retractor for a vehicle safety belt system
US5794875A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Dec 10, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/468
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In the context of a belt retractor for a vehicle safety belt system comprising a locking device for a belt drum (14) and a rotary belt pretensioner drive (20), said drive being able to be connected drivingly with a drive pinion for the belt drum (14) via a coupling having pawls (34) able to be shifted between a rest position out of engagement with the drive pinion (16) and a working position in engagement with the drive pinion (16), it is desired to provide reliable interruption of the driving connection of the coupling when tensioning by the belt pretensioner drive is completed. For this purpose there is the provision that the coupling pawls (34) are able to be moved positively both out of the rest position into the working position and furthermore from the working position into the rest position by running against cam surfaces rotating in relation to them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.