Inflator

摘要

The present invention provides an inflator (10) including:
a pressurized gas chamber (20) filled with a pressurized gas and having a first end and a second end;
a gas generator (30) being connected to the first end, and including therein an ignition device (34) and a molded article of a gas generating (36);
a diffuser portion (50) connected to the second end, and being provided with a gas discharge port;
a communication path (38) provided between the pressurized gas chamber and the gas generator and closed by a rupturable plate (40);
a cap (44) provided to cover the rupturable plate (40) from the pressurized gas chamber side and having a plurality of gas holes (42) formed at a circumference thereof, the minimum diameter (d min) of the gas hole being equal to or smaller than the larger one of the minimum diameter (D min) and the length (L) of the molded article (36) of the gas generating composition.