Venting device of air bag system
US6017056A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Dec 3, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2765
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air bag system having an air bag, an impact sensor, and a calculator, including vent holes formed at a joint of the air bag and an inflator to communicate with the air bag; and vent hole opening control means for regulating the opening of the respective vent holes. The vent hole opening control means has a rotor with a plurality of slots formed along a circumference to overlap the vent holes, and a gear extending to the outside; a stepping motor engaging with the gear of the rotor to drive the rotor by stages; bearings provided to the inflator coupling disc to support the free rotation of the rotor; and a compression ring for making the bearings contact the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.