| 摘要 |
The present invention provides a gas generator for a restraining device, including: a housing formed by a diffuser shell having a gas discharge port and a closure shell, an ignition device chamber in which an ignition device is accommodated, and a combustion chamber in which a gas generating agent is accommodated, being defined inside the housing, the ignition device chamber being defined inside an inner tube disposed in the housing, and the combustion chamber being defined outside the inner tube, the inner tube including, openings on both ends being fixed to a bottom surface and a top surface of the housing, a flame-transferring hole being formed in a circumferential wall portion to communicate the ignition device chamber with the combustion chamber, and a reduced strength portion being provided in the circumferential wall portion between the flame-transferring hole and the top surface of the housing.
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