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Airbag apparatus

  • US 7,040,655 B2
  • Filed: 10/07/2003
  • Issued: 05/09/2006
  • Est. Priority Date: 10/28/2002
  • Status: Expired due to Fees
First Claim
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1. An airbag apparatus comprising:

  • an airbag having an inner bag and an outer bag, the outer bag including a vent hole;

    a gas generator configured to supply gas to the inner bag, wherein the inner bag includes an opening to allow gas to exit the inner bag to inflate the outer bag;

    a retainer configured to hold the gas generator; and

    a closing mechanism separate from the airbag for maintaining the vent hole closed until the pressure of the gas in the outer bag reaches a predetermined level, the mechanism including a lid and a holding member configured to hold the lid,wherein the lid is positioned between the holding member and the retainer inside the outer bag, andwherein the vent hole is positioned so that gas escapes from the vent hole out of the outer bag and through the retainer.

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