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Airbag apparatus

  • US 7,168,733 B2
  • Filed: 09/23/2003
  • Issued: 01/30/2007
  • Est. Priority Date: 12/27/2002
  • Status: Expired due to Term
First Claim
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1. An airbag apparatus for protecting an occupant in a vehicle, comprising:

  • an airbag having an occupant-side surface facing the occupant and a vehicle-body-side surface opposite to the occupant-side surface when the airbag is inflated, and at least an upper chamber and a lower chamber separated from each other,a gas generator disposed in the airbag for generating gas to inflate the airbag,a communicating portion between the upper and lower chambers, anda check valve disposed in the communicating portion for preventing the gas from flowing form the lower chamber to the upper chamber.

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