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Inflatable seat belt control system

  • US 6,010,151 A
  • Filed: 10/30/1997
  • Issued: 01/04/2000
  • Est. Priority Date: 11/01/1996
  • Status: Expired due to Fees
First Claim
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1. An occupant holding-back device comprising:

  • a webbing;

    an inflator connected to said webbing;

    a retractor attached to one of opposite ends of said webbing for drawably taking up at least said one end of said webbing;

    a tongue mounted at an intermediate portion of said webbing between said opposite ends;

    a buckle to be attached with said tongue;

    an inflatable bag accommodated in said webbing;

    a webbing drawn-amount sensor for detecting an amount of said webbing drawn out of said retractor;

    a tongue-coupling sensor for detecting a coupled state of said tongue to said buckle; and

    an ignition control unit for igniting said inflator based on outputs from an acceleration sensor, said webbing drawn-amount sensor and said tongue-coupling sensor;

    wherein said ignition control unit ignites said inflator and expands said bag when said webbing drawn-amount sensor detects that said webbing is drawn out from said retractor in an amount which is equal to or larger than a predetermined value and said tongue-coupling sensor detects that said tongue has been coupled to said buckle.

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