AIR BAG DEVICE

摘要

PURPOSE:To make inflator mechanism compact by providing a sensor housing with built-in impact sensing mechanism outside of an inflator housing with built-in inflator mechanism, and fixing the sensor housing to the inflator housing in such a way as to be on the same center axis as the inflator mechanism. CONSTITUTION:A sensor housing 31 with built-in impact sensing mechanism 32 is disposed outside of an inflator housing 21 with built-in inflator mechanism 22, and the inflator housing 21 is fixed to the sensor housing 31 by screwing the screw part 21d of the inflator housing 21 with the screw part 31e of the sensor housing 31. A mechanical sensor 3 is fixed to an inflator 2 by screwing the screw part 21d of the inflator housing 21 with the screw part 31e of the sensor housing 31. Ignition mechanism 4 is disposed in the through hole 21a of the inflator housing 21 and the through hole 31c of the sensor housing 31. The mechanical sensor 3 and ignition mechanism 4 are disposed on the same center axis as the inflator mechanism 22.