Vehicle air bag device

• US 8,215,664 B2
• Filed: 10/09/2008
• Issued: 07/10/2012
• Est. Priority Date: 10/30/2007
• Status: Expired due to Fees

• Current Assignee: Autoliv Development AB (Autoliv Incorporated)
• Original Assignee: Autoliv Development AB (Autoliv Incorporated)
• Inventors: Ohba, Yoshihiro, Arima, Takashi, Fukuda, Hideho, Arakawa, Hironori
• Primary Examiner(s): ROCCA, JOSEPH M
• Application Number:
  US12/738,586
• Publication Number:
  US 20100207364A1
• Time in Patent Office: 1,370 Days
• Field of Search: 280/728.2, 280/730.2
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 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

Abstract

A vehicle air bag device may include an air bag having an integrally formed inflator insertion portion 4 into which an inflator 5 for discharging a gas is inserted. A bracket that is formed to attach the inflator to a vehicle body includes an inflator side mounting portion 8 mounted onto an outer side of the inflator insertion portion so as to partially cover the inflator insertion portion partially. A strip-form body 10 is disposed over and attaches the bracket, the inflator insertion portion, and the inflator such that the strip-form body. The strip-form body and the inflation insertion portion are displaced from each other by a step formed by the bracket, thereby forming a gap disposed between the strip-form body and said inflation insertion portion. A seal portion formed on the bracket is sealingly aligned with the strip-form body and seals the gap.

Claims

1. A vehicle air bag device comprising:

an air bag having an integrally formed inflator insertion portion;

a gas discharging inflator disposed within said inflator insertion portion, wherein when the gas is discharged by the inflator, the gas flows into the airbag, thereby inflating and deploying the airbag;

a bracket configured to attach said inflator to a vehicle body, said bracket being mounted over an external portion of said inflator insertion portion and at least a portion of said inflator disposed therein, said bracket partially covering said inflator insertion portion;

a strip-form body disposed around an external portion of said bracket, said inflator insertion portion of said airbag, and said inflator disposed in said inflator insertion portion, said strip-form body thereby attaching said bracket to said airbag and said inflator, wherein said strip-form body and said inflator insertion portion are displaced from each other by a step formed by a thickness of said bracket, wherein the step causes formation of a gap between respective portions of said strip-form body and said inflator insertion portion; and

a seal portion formed on said bracket, said seal portion being sealingly aligned with said strip-form body, said seal portion thereby sealing said gap.

2. The vehicle air bag device according to claim 1, wherein said seal portion is disposed on at least one of a pair of side edges of said strip-form body.