Seat belt pretensioner
US7131667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Jun 9, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pretensioner for a three point vehicle safety restraint seat belt, has a mounting for one end of the seat belt. The mounting is a first member fixed to a load bearing part of the vehicle. A second member is attached to the end of the seat belt. A means is provided for moving the second member relative to the first member in a pretensioning direction in response to activation of a crash sensor. The mounting may be a flexible cable that functions as a slider bar. A piston-cylinder force reservoir may be used either to pull the slider bar via a carriage mounted on a rail, or to pull the cable directly. Return motion is preferably inhibited. The arrangement provides a space saving pretensioner suitable for two-door vehicles while allowing access to the vehicle rear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.