Malfunction preventing device for air bag module in automobiles.

摘要

In an air bag module (M) 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 (Em) carried on the vehicle body and to a separate auxiliary power supply (Es) through an actuating circuit (C), and means for neutralizing (Ca) the auxiliary power supply is provided to prevent the malfunction or accidental operation of the module.