VEHICULAR AIRBAG APPARATUS

• US 20070145726A1
• Filed: 12/18/2006
• Published: 06/28/2007
• Est. Priority Date: 12/28/2005
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Yasuhara, Fumitoshi, Ochiai, Fumiharu
• Granted Patent: US 7,661,702 B2
• Time in Patent Office: Days
• US Class Current: 280/730.200
• CPC Class Codes: B60R 2021/23324 Inner walls crating separate compartments, e.g. communicating with vents
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• 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

Abstract

Airbag apparatus includes an airbag having at least two bag body sections superposed on each other. Gas flow-in portion for connection to an inflator is formed in one of the bag body sections adjacent to one edge of the one bag body section. Communicating hole is formed in the plurality of bag body sections adjacent to the other edge of the one bag body section. Upon activation of the inflator, gas is supplied into the one bag body section, through the gas flow-in portion, to develop the one bag body section. After that, the other bag body section superposed on the one bag body section is developed by the gas supplied through the communicating hole.

Claims

1. An airbag apparatus for a vehicle, comprising:

an inflator for emitting gas in response to an impact applied to the vehicle; and

an airbag capable of being developed, by the gas emitted by said inflator, toward an interior of the vehicle,

said airbag including a plurality of bag body sections capable of being filled with the gas, said plurality of bag body sections being superposed on each other to provide a predetermined overall thickness,

one of the plurality of bag body sections having a gas flow-in portion formed therein, adjacent to one edge of the one bag body section, in such a manner that said inflator is connectable with the gas flow-in portion, a communicating hole being formed in said plurality of bag body sections, adjacent to another edge of the one bag body section opposite from the one edge, to allow said plurality of bag body sections to communicate with each other through the communicating hole.

2. The airbag apparatus of claim 1, wherein a pre-communicating hole having a smaller size than the communicating hole is formed in said plurality of bag body sections adjacent to the one edge.

3. The airbag apparatus of claim 1, wherein a plurality of the communicating holes are formed adjacent to and along the other edge.

4. The airbag apparatus of claim 2, wherein a plurality of the pre-communicating holes are formed adjacent to and along the one edge.

5. The airbag apparatus of claim 1, wherein each of said plurality of bag body sections includes a plurality of separate gas filling portions that are arranged in a front-rear direction of the vehicle and extend in an up-down direction of the vehicle.

6. The airbag apparatus of claim 5, wherein said plurality of gas filling portions are inclined at a predetermined angle toward a rear of the vehicle.

7. The airbag apparatus of claim 1, wherein each of said plurality of bag body sections includes a front bag section to be developed in a position corresponding to a front seat of the vehicle, and a rear bag section, connecting with the front bag section, to be developed in a position corresponding to a rear seat of the vehicle.