Safety belt retractors
US4256273A · kind A · utility
15Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1979 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Jul 3, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/3427
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A safety belt retractor has a spindle 11 provided with an outer layer 14 formed of a material which is capable of absorbing energy by substantially inelastic deformation. When the safety belt 10 is subject to shock-loading exceeding a predetermined level, this outer layer 14 is crushed, leading to a reduction in the effective diameter of the spindle 11 and thereby allowing an additional length of the belt 10 to be paid out after the spindle 11 has been loaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.