Importance

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Abstract

To obtain a gas generator that is easier to manufacture than before. A gas generator 100 has a long substantially columnar outer shape, and includes a housing 10, a first holder 20, a second holder 25, and a third holder 53 attached near one opening end of the housing 10, an igniter 50 that is held by the second holder 25 and ignites a gas generating agent 31, a closing member 12 attached to the other end of the housing 10 so as to close the other opening end of the housing 10, and a filter 41. The second holder 25 is fixed to the housing 10 by forming a circumferential wall 10d and a circumferential wall 10e in a state where the second holder 25 is sandwiched between the first holder 20 and the third holder 53. The third holder 53 is fixed to the housing 10 by performing diameter reduction processing (caulking processing or the like) from an outer circumference to an inner side of the housing 10 at a position corresponding to an annular groove portion 54 to form the circumferential wall 10d.

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First Claim