Airbag system for passenger protection
US8991857B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23571
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An airbag system (3) having a two-chamber airbag (4), wherein the main chamber has an impact surface (7) which the vehicle occupant can contact and a support surface (8) with the main chamber (5) supported on an interior fitting (2) of the vehicle. A secondary chamber (11) forms a support cushion for the main chamber (5), the main chamber (5) having a greater volume than the secondary chamber (11). The secondary chamber (11) is located between the support surface (8) and the interior fitting (2). The airbag (4) has an overflow protective element (24) between the main and secondary chambers (11). A first gas generator (16) inflates the main chamber (5) and a second gas generator (17) inflates the secondary chamber (11), wherein both generators (16, 17) or only the first generator (16) can be controlled for inflating the main chamber (5) as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.