Airbag and airbag device
US9457759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2015 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | May 12, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2617
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To provide an airbag and an airbag device that can keep the internal pressure of the airbag in the initial stage of inflation and deployment high. An airbag includes a first chamber and a second chamber. The first chamber includes a nozzle forming a flow path capable of communicating with the second chamber, and a tether connecting the inner surface of the nozzle and the inner surface of the first chamber. During the inflation and deployment of the first chamber, the supply of gas to the second chamber is prevented by retracting the nozzle into the first chamber. After the first chamber is expelled into the cabin and when a predetermined external pressure is loaded on the first chamber, the nozzle is expelled into the second chamber so as to allow gas to be supplied to the second chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.