Airbag apparatus

• US 20050173897A1
• Filed: 01/31/2005
• Published: 08/11/2005
• Est. Priority Date: 02/06/2004
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Abe, Kazuhiro, Senoh, Rika
• Application Number:
  US11/045,347
• Publication Number:
  US 20050173897A1
• Time in Patent Office: Days
• US Class Current: 280/729
• CPC Class Codes: B60R 2021/23324 Inner walls crating separate compartments, e.g. communicating with vents
• CPC Class Codes: B60R 2021/26058 using a combination of inflators
• CPC Class Codes: B60R 2021/2633 with a plurality of inflation levels
• CPC Class Codes: B60R 21/217 Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
• CPC Class Codes: B60R 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid

Abstract

An airbag apparatus includes an airbag that is defined by a plurality of chambers or by a plurality of small airbags. The airbag is configured in such a manner that not only the sequence of inflation of the respective chambers or airbags, but also the internal pressure upon inflation, is controlled independently. The airbag apparatus includes an inflator for inflating the airbag, a flow control member for allowing gas from the inflator to flow independently into the chambers or airbags, and a retainer. The inflator includes two gas generating units, which are configured to perform gas generating action independently. The flow control member is configured to allow gas from the first gas generating unit to flow into a first chamber or a first small airbag of the airbag, and gas from the second gas generating unit to flow into a second chamber or a second small airbag of the airbag.

Claims

1. An airbag apparatus comprising:

an airbag having a plurality of chambers; and

a gas generator configured to inflate the airbag,

wherein a supply of gas from the gas generator to at least one of the chambers is controlled independently from a supply of gas from the gas generator to other chambers.

2. The airbag apparatus according to claim 1, wherein the gas generator includes an inflator having a plurality of gas generating units that are configured to perform gas generating action independently, and wherein gas from the gas generating units is respectively supplied to the chambers.

3. The airbag apparatus according to claim 1, wherein the gas generator includes a plurality of inflators that are configured to perform gas generating action independently, and wherein gas from the inflators is respectively supplied to the chambers.

4. An airbag apparatus comprising:

a plurality of airbags; and

gas generator configured to inflate the respective airbags,

wherein a supply of gas from the gas generator to at least one of the airbags is controlled independently from a supply of gas from the gas generator to other airbags.

5. The airbag apparatus according to claim 4, wherein the gas generator includes an inflator having a plurality of gas generating units that are configured to perform gas generating action independently, and wherein gas from the gas generating units is respectively supplied to the airbags.

6. The airbag apparatus according to claim 4, wherein the gas generator includes a plurality of inflators that are configured to perform gas generating action independently, and wherein gas from the inflators is respectively supplied to the airbags.

7. A vehicle comprising:

airbag apparatus comprising;

an airbag having a plurality of chambers; and

a gas generator configured to inflate the airbag,

wherein a supply of gas from the gas generator to at least one of the chambers is controlled independently from a supply of gas from the gas generator to other chambers.

8. The vehicle according to claim 7, wherein the gas generator includes an inflator having a plurality of gas generating units that are configured to perform gas generating action independently, and wherein gas from the gas generating units is respectively supplied to the chambers.

9. The vehicle according to claim 7, wherein the gas generator includes a plurality of inflators that are configured to perform gas generating action independently, and wherein gas from the inflators is respectively supplied to the chambers.

10. A vehicle comprising:

airbag apparatus comprising;

a plurality of airbags; and

gas generator configured to inflate the respective airbags,

wherein a supply of gas from the gas generator to at least one of the airbags is controlled independently from a supply of gas from the gas generator to other airbags.

11. The vehicle according to claim 10, wherein the gas generator includes an inflator having a plurality of gas generating units that are configured to perform gas generating action independently, and wherein gas from the gas generating units is respectively supplied to the airbags.

12. The vehicle according to claim 10, wherein the gas generator includes a plurality of inflators that are configured to perform gas generating action independently, and wherein gas from the inflators is respectively supplied to the airbags.