Torsion shaft, seat belt retractor assembly and associated methods
US11345307B2 · kind B2 · utility
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1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2021 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jan 11, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/287
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A torsion shaft for a seat belt retractor assembly, the torsion shaft being connectable at a first location to a spool for receiving a seat belt and connectable at a second location to a locking mechanism, the first and second locations being spaced apart along a length of the torsion shaft, wherein the torsion shaft is configured to deform when a torsion force is applied between the first and second locations during an impact event, wherein the torsion shaft comprises a cavity and a fluid is provided in said cavity so as to support the torsion shaft as the torsion shaft deforms during the impact event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.