| 摘要 |
PURPOSE:To prevent igniting chemicals and drive chemicals in a gas generating agent chamber from being moistened so that the igniting chemicals and drive chemicals can be ignited surely by providing a seal resin film and a first film material. CONSTITUTION:When a strike needle is collided with the surface of a detonator 18 at the collision of car, the detonator 18 fires, fire invades into a gas generating agent chamber 13 through a small diameter pipe line 17, igniting chemical 20 and drive chemical 21 are exploded, and gas is produced. Because a detonator holder 15 is caulked by a caulking part 14 of a casing 7, a seal resin layer 22 is pressed on the surface of the detonator holder 15 on the detonator 18 side by the caulking part 14, and a first film material 23 is pressed on a stepped part 8 by the surface on side opposite to the detonator 18 of the detonator holder 15. Thus entry of moisture into the gas generating agent chamber 13 from the outside is prevented by the seal resin layer 22 and first film 23, and the gas generating agent chamber 13 is held in sealed condition so as to prevent the igniting chemicals and drive chemicals in the gas generating agent chamber 13 from being moistened with moisture from the outside. |
