Automotive pretensioner seatbelt system
US7635150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2006 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Nov 14, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/1952
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides an automotive pretensioner seatbelt system, which includes a seatbelt webbing, a slip ring, a buckle, a pretensioner and a retractor. One end of the webbing is fixed to the anchor site of the vehicle body, while the other end of the webbing goes through the slip ring and links to the retractor. The pretensioner includes a stroke enlargement mechanism and a power source. The stroke enlargement mechanism includes a fixed component and a movable component. The webbing is wound around the fixed component and the movable component. The stroke enlargement mechanism ensures that the length of webbing retracted by the pretensioner is greater than the displacement of the movable component. Compared to conventional seatbelt systems, this seatbelt system allows more webbing to be retracted in the same time duration; in other words, it takes less time to retract a webbing of the same length. In this way, pretension of the present invention can be realized more efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.