Patent attributes
An actuator includes an ignition device having an igniter main body fixed to an igniter collar and a cylinder connected to the igniter collar. The cylinder has a first sliding chamber located in a position facing the ignition device and a second sliding chamber formed in a direction perpendicular to the first sliding chamber. A first piston is disposed inside the first sliding chamber, one end surface of the first piston having a first inclined surface inclined in one direction, and the other end surface opposing the ignition device, and a second piston is disposed inside the second sliding chamber. A circumferential surface of the second piston is provided with a recess formed with a second inclined surface inclining in the central axis direction, and the second piston is provided such that the first inclined surface abuts against the second inclined surface.