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Air bag apparatus

  • US 5,829,783 A
  • Filed: 09/02/1997
  • Issued: 11/03/1998
  • Est. Priority Date: 09/03/1996
  • Status: Expired due to Fees
First Claim
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1. An air bag apparatus including a pressure control mechanism comprising:

  • a canister;

    an inflator for accumulating an operating gas said inflator being arranged in said canister;

    an air bag for expanding when said operating gas is supplied from said inflator through said canister;

    a pressure adjusting mechanism for adjusting a pressure value of said operating gas in said canister in response to an applied acceleration;

    a first opening hole formed in said canister, said first opening hole being defined to communicate with an internal portion of said pressure adjusting mechanism;

    a vent formed in said pressure adjusting mechanism, said vent being defined to communicate with the atmosphere;

    a weight provided in said pressure adjusting mechanism, said weight having means for controlling an opening of said first opening hole;

    a second opening hole formed in said weight, said second opening hole being defined to communicate between said pressure adjusting mechanism and the atmosphere when said first and second opening holes are aligned; and

    a spring arranged between said canister and said weight, said spring being operatively positioned to maintain said weight in an initial position.

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