Belt retractor for a vehicle safety belt
US7080801B2 · kind B2 · utility
4Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2004 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Sep 10, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4666
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A belt retractor for a vehicle safety belt comprises a rotatably mounted belt spool, a drive wheel coupled coaxially with the belt spool, an electric motor which can drive the drive wheel at a variable drive force, and an electronic control unit which can control the electric motor. The belt spool is rotatable to a limited extent with respect to the drive wheel and a sensor is provided that on rotation of the belt spool relative to the drive wheel generates a signal which is representative of the belt force acting in the safety belt and is supplied to the electronic control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.