Curtain airbag assembly for a motor vehicle
US8523222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2011 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Dec 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2615
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An airbag assembly for a motor vehicle includes an inflator and a curtain airbag securable to a body structure of the motor vehicle. The airbag includes two or more deployment tubes and two or more inflatable chambers. Vents connect the deployment chambers with the inflatable chambers. Gasses from the inflator pass first into the deployment tubes to rapidly inflate them to vertically extending positions and draw the airbag over a window opening. The gasses then pass through the vents into the inflatable chambers to complete the deployment of the curtain airbag. The rapid inflation and deployment of the deployment chambers provides cushioning for an occupant's head early in a crash event, followed by the inflation of the inflatable chambers to provide additional head protection and increasing the resistance of the curtain airbag to ejection through the underlying window apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.