Seatbelt pretensioning retractor assembly including a piston-safety valve member
US10259426B2 · kind B2 · utility
2Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4661
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seatbelt pretensioning retractor assembly for use in a passenger vehicle is provided. The pretensioning assembly includes a tube in fluid communication with a gas generator and a driving element disposed therein that travels in a first direction in response to actuation of the gas generator. The driving element includes a polymer rod. A stopper is coupled to a proximal end portion of the polymer rod. A piston-safety valve member is disposed between the gas generator and the stopper and is configured to allow gas from the gas generator to pass therethrough when the gas is at or above a predetermined pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.