Patent ID: 8801034
Filing Date: 2014-08-12
Classification: B60R

Abstract:
1. A gas generator, comprising: a housing forming an outer shell and including a top plate, a bottom plate and a circumferential wall provided with a gas discharge port; an ignition device chamber provided in the housing and defined by a cylindrical container which has one end closed, and accommodating an ignition device; a combustion chamber formed to surround the ignition device chamber and charged with a gas generating agent; an annular or disk-shaped filter arranged to face the top plate and form a gap with the circumferential wall; and an annular retainer supporting the filter, the annular retainer being formed by a combination of a first retainer including a second retainer including, the first retainer and the second retainer being combined such that the annular support bottom portion of the second retainer positions between the annular flat-plate portion of the first retainer and the lower surface of the filter and that an inner circumferential edge of the annular support bottom portion of the second retainer abuts against the annular wall surface portion, at least a part of the lower surface and the outer circumferential surface of the filter being supported by the combination of the first retainer and the second retainer.