Patent ID: 7856821

Claim:
An actuator, comprising: an ignition device having an igniter main body fixed to an igniter collar; a cylinder connected to the igniter collar, the cylinder having 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 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 disposed inside the second sliding chamber, a circumferential surface of the second piston being provided with a recess formed with a second inclined surface inclining in a central axis direction, the second piston being provided such that the first inclined surface abuts against the second inclined surface, wherein, upon activation of the actuator, the first piston moves relative to the second piston, such that the first inclined surface slides on the second inclined surface to push the second piston in an axial direction of the second sliding chamber.