Patent ID: 8459692
Filing Date: 2013-06-11
Classification: B60R

Abstract:
1. A gas generator, comprising: a cylindrical housing having both ends closed, a gas discharge port in a peripheral surface thereof and a combustion chamber charged with a gas generating agent therein; a closing member closing one of the closed ends of the cylindrical housing and including a disk-shaped main body portion, an annular projection portion formed in a peripheral surface at one side of the main body portion, and a peripheral surface of the annular projection portion abutting against an inner peripheral surface of the cylindrical housing, an igniter attached to the closing member; and a transfer charge chamber housing defining a transfer charge chamber charged with a transfer charge, and attached to the closing member so as to surround the igniter, the transfer charge chamber housing having a cup-like shape including a peripheral surface, a bottom surface formed with a flame-transferring hole, a flange portion formed at an opening portion thereof, and an annular wall surface extending in an axial direction of the cylindrical housing from the flange portion, the transfer charge chamber housing being mounted such that the annular wall surface thereof is fitted into a part of an annular groove defined by the cylindrical housing, the main body portion and the annular projection portion of the closing member, and the flange portion abuts against a surface of the main body portion that faces the transfer charge chamber, the transfer charge chamber housing being fixed to the closing member by the flange portion pressed in the axial direction by a supporting member provided inside the cylindrical housing; and a sealing member being disposed in a remaining space of the annular groove and sealing between the cylindrical housing and the closing member, such that an end of the annular wall surface of the transfer charge chamber housing extends parallel to the cylindrical housing and directly opposes the sealing member.