Occupant protection device
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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Abstract
An occupant protection device includes a plurality of gas generators that actuate respective mechanisms, and a control portion that actuates the gas generators. If a condition for actuating at least one of the gas generators is fulfilled and a condition for actuating the other gas generators are unfulfilled, the other gas generators are controlled by the control portion at a timing that is uninfluential on an actuation state of one of the mechanism actuated by the one of the gas generators and that is different from a preset timing for actuating the other mechanisms actuated by the other gas generators.
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Citations
2 Claims
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1. An occupant protection device comprising:
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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. - View Dependent Claims (2)
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Specification