Patent ID: 9481339
Filing Date: 2016-11-01
CPC Classification: B60R

Claim Text:
1. A gas generator, comprising: a cylindrical housing having therein, a closing member in a circular shape, closing between the ignition device chamber and the pressurized gas chamber, the closing member having a fragile portion on one surface thereof, at least the ignition device, and a piston which is movable in a direction to the closing member along the axis X a base plate including a pressure-receiving surface that receives a combustion product from the ignition device, and a rod extending from one end of the base plate to the direction to the closing member along the axis X the fragile portion being a groove formed with a curve extending from a start point A on Y the groove being formed such that distance from the crossing point X that the end point E is one of points E by the rod moving along the axial direction and pushing the closing member at the time of activation, the closing member being ruptured along the groove from the vicinity of the start point A to the end point E of the fragile portion, and the rod pushing the closing member at a position offset from the start point A but close to the groove between the start point A and the first intermediate point B.