Gas generating device for air bag and air bag inflating method
US6607213B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2633
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a gas generator for an air bag apparatus mounted in a vehicle or the like for protecting an occupant in the vehicle by charging gas into the air bag interposed between the occupant and a vehicle member at the time of collision of the vehicle. The gas generator for the air bag of the present invention comprises a first chamber (9) accommodating a flammable fluid (7) having a first vent opening (8) which is in communication with the air bag (3), a second chamber (5) accommodating the flammable fluid (7) and having a volume greater than that of the first chamber (9), a first occluding member (31) for occluding the first vent opening (8), and an ignition device (14) for igniting the flammable fluid (7) in the first chamber (9). By burning at least a portion of the flammable fluid (7) in the first chamber (9), the fluid in the first chamber (9) and the second chamber (5) is discharged out through the first vent opening (8), thereby inflating the air bag (3). Therefore, since the first occluding member is swiftly destroyed and burnt fluid mixture in the first chamber is discharged, it is possible to shorten the initial responding time at which the air bag…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.