Malfunction preventing device for air bag module in automobiles
First Claim
1. A malfunction preventing air bag module in a motor vehicle said motor vehicle having a primary power supply means carried on a body of said motor vehicle for supplying power, wherein said air bag module is detachably mounted in the motor vehicle, said malfunction preventing air bag module comprising:
- an air bag;
an inflator means for supplying a bag-inflating high pressure gas into said air bag;
an actuating circuit means for actuating said inflator means;
said primary power supply means supplying power to said inflator means;
an auxiliary power supply means connected in parallel to said primary power supply means for supplying auxiliary power to said inflator means;
a deceleration sensing circuit means for opening said actuating circuit means and for closing said actuating circuit means when a deceleration of said body of said vehicle exceeds a predetermined value; and
an operating-function neutralizing means, operatively connected to said auxiliary power supply means, for neutralizing operation of said inflator means, said neutralizing means comprising a discharge means for causing said auxiliary power supply means to discharge current when the air bag module is separated from its mounting position in the vehicle.
1 Assignment
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Accused Products
Abstract
In an air bag module mounted on a steering wheel of an automobile for use, an inflater for rapidly supplying a high-pressure gas into an air bag of the module upon detection of a deceleration of a vehicle body higher than a predetermined value is connected in parallel to a primary power supply carried on the vehicle body and to a separate auxiliary power supply through an actuating circuit, and means for neutralizing the auxiliary power supply is provided to prevent the malfunction or accidental operation of the module.
31 Citations
18 Claims
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1. A malfunction preventing air bag module in a motor vehicle said motor vehicle having a primary power supply means carried on a body of said motor vehicle for supplying power, wherein said air bag module is detachably mounted in the motor vehicle, said malfunction preventing air bag module comprising:
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an air bag; an inflator means for supplying a bag-inflating high pressure gas into said air bag; an actuating circuit means for actuating said inflator means; said primary power supply means supplying power to said inflator means; an auxiliary power supply means connected in parallel to said primary power supply means for supplying auxiliary power to said inflator means; a deceleration sensing circuit means for opening said actuating circuit means and for closing said actuating circuit means when a deceleration of said body of said vehicle exceeds a predetermined value; and an operating-function neutralizing means, operatively connected to said auxiliary power supply means, for neutralizing operation of said inflator means, said neutralizing means comprising a discharge means for causing said auxiliary power supply means to discharge current when the air bag module is separated from its mounting position in the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A malfunction preventing air bag module in a motor vehicle, said motor vehicle having a primary power supply means carried on a body of said motor vehicle for supplying power, wherein said air bag module is detachably mounted in the motor vehicle, said malfunction preventing air bag module comprising:
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an air bag; an inflator means for supplying a bag-inflating high pressure gas into said air bag; an actuating circuit means for actuating said inflator means; said primary power supply means supplying power to said inflator means; an auxiliary power supply means connected in parallel to said primary power supply means for supplying auxiliary power to said inflator means; a deceleration sensing circuit means for opening said actuating circuit means and for closing said actuating circuit means when a deceleration of said body of said vehicle exceeds a predetermined value; and operating-function neutralizing means, operatively connected to said auxiliary power supply means, for neutralizing operation of said inflator means, wherein said neutralizing means comprises a discharging means which includes a switch means for selectively changing-over connections of said auxiliary power supply means with a resistor and said actuating circuit means so that said switch means neutralizes said auxiliary power supply upon removal of said air bag module from the vehicle, thereby permitting said auxiliary power supply to discharge a circuit through said resistor. - View Dependent Claims (18)
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Specification