Patent ID: 8720947

Claim:
A gas generator for a restraining device comprising: a cylindrical housing having an ignition device provided at one end in a longitudinal axis direction thereof and a diffuser portion including a gas discharge port provided at the other end thereof; a gas generating agent charged in an inner space of the housing; a plate-like partition member, having a communication hole, disposed, in an inner space of the cylindrical housing, so as to incline relative to the longitudinal axis (X) of the cylindrical housing, thereby dividing the inner space into two mutually adjacent spaces, that is, a gas generating agent charging space and a gas flow channel space, the gas flow channel space communicating with the diffuser portion, both of side edges of the plate-like partition member being abutted against an inner circumferential surface of the cylindrical housing, a cross-sectional area of the gas generating agent charging space in a short-axis direction perpendicular to the longitudinal axis (X) decreasing from a side of the ignition device toward a side of the diffuser portion, a cross-sectional area of the gas flow channel space in the short-axis direction increasing from a side of the ignition device toward a side of the diffuser portion, wherein the plate-like partition member has a partition surface, a first fixing surface at one end of the plate-like partition member, and a second fixing surface at an opposite end of the plate-like partition member, the first fixing surface and the second fixing surface abut the inner circumferential surface of the cylindrical housing, and respective side edges of the partition surface abut the inner circumferential surface of the cylindrical housing.