Retractor with pretensioner for auxiliary load limitation
US7878439B2 · kind B2 · utility
1Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2008 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/287
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An assembly having a retractor and a pretensioner whereby the pretensioner can be employed to provide load limitation features. The pretensioner may also be used without the load limitation features. The pretensioner has a drive mechanism including a plurality of pretensioner balls sized to engage a pinion, the pinion operatively connected to the seat belt through a force limiting element. The pretensioner defines a guide surface structured to guide the pretensioner balls along a ball path along the pinion. The guide surface includes features to engage a pretensioner ball and block the pinion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.