Variable torque drive
US4061291A · kind A · utility
13Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1976 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Aug 31, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4413
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A safety belt reel comprising a coil spring, a shaft on which a safety belt is stored and a variable torque device coupling said spring to said shaft; said variable torque device including at least one spiral body, an element which is drivably engaged with said body and means for enabling translational movement of said body when the spring is wound or unwound by withdrawal and retraction of said belt whereby the output torque of said device is varied to adjust the force exerted on said belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.