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Occupant protection device

  • US 8,286,999 B2
  • Filed: 03/03/2011
  • Issued: 10/16/2012
  • Est. Priority Date: 12/25/2007
  • Status: Expired due to Fees
First Claim
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1. An occupant protection device comprising:

  • a retraction mechanism for protecting an occupant, the retraction mechanism retracts a seat belt for restraining the occupant;

    a change mechanism for supplementing an occupant protection function of the retraction mechanism, the change mechanism changes a tensile force applied to the retracted seat belt, the change mechanism having a cam;

    a first gas generator that generates a gas for actuating the retraction mechanism;

    a second gas generator that generates a gas for actuating the change mechanism; and

    a control portion that performs control such that the first gas generator is actuated if a condition for actuating only the first gas generator is fulfilled, and the control portion performs control such that the second gas generator is actuated at a timing that is uninfluential on an actuation state of the retraction mechanism and that is different from a preset timing for actuating the change mechanism;

    wherein the gas generated by the second gas generator for actuating the change mechanism moves the cam to change the tensile force applied to the retracted seat belt.

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