To provide a gas generator capable of attaining a sufficient air-tight property between a combustion chamber and a filter chamber by a simple constitution and facilitating assembling work.
The gas generator is provided with a lengthy cylindrical member 10 made of metal; and a partition member 12A for dividing a space at the inside of the cylindrical member 10 to the combustion chamber 17 and the filter chamber 18 in an axial direction. The partition member 12A includes a base part 13 made of metal provided with a communication hole 13a for communicating the combustion chamber 17 with the filter chamber 18; and a covering part 14 provided so as to cover a surface of the base part 13. The partition member 12A is fixed to the cylindrical member 10 by clamping its peripheral edge by a pair of calking parts 10B provided by diameter-contracting the peripheral wall of the cylindrical member 10. The covering part 14 has a first seal part 14a interposed between a peripheral edge of the base part 13 and the calking part 10B; and a second seal part 14b continuously extending from the first seal part 14a and closing an opening surface of the communication hole 13a.
SHIMONAKA YUKI
SUEHIRO AKIHIKO
NIPPON KAYAKU KK
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa