Patent ID: 9731680
Date: 2017-08-15
CPC Classifications: B60R

Claim:
1. An inflator, comprising: an ignition device chamber accommodating therein an igniter and having a gas discharge port; a pressurized gas chamber filled with a pressurized gas inside a bottle; a rupturable plate closing between the ignition device chamber and the pressurized gas chamber; a partition wall provided with a rod serving as a fracturing device for the rupturable plate and the partition wall axially separating an interior of an ignition device unit housing, corresponding to the ignition device chamber, into two chambers; a combustion chamber provided on the side of a first end of the ignition device unit housing and provided with an electric igniter mounted at an opening of the first end; and a diffuser chamber having the gas discharge port and provided on the side of a second end, which is an opposite end to the first end of the ignition device unit housing, the rupturable plate being circular and having, the rod provided at the partition wall and serving as the fracturing device, the rod being fixed to the partition wall and extending toward the rupturable plate, and the rod coming into contact with all of the end points in the fragile portion and rupturing the rupturable plate when the partition wall upon receipt of a gas pressure generated by activation of the ignition device moves in an axial direction and the rod collides with the rupturable plate.