GAS GENERATOR AND AIRBAG DEVICE

To provide a gas generator having a reduced difference in output performance between a separate state and an assembled state.SOLUTION: In a gas generator, a plurality of gas discharge holes includes a plurality of first gas discharge holes and one or a plurality of second gas discharge holes having an opening pressure higher than that of the first gas discharge holes. The opening pressure of the first gas discharge holes and the opening pressure of the second gas discharge holes are set such that: when an igniter is actuated in a separate state which is a state before the gas generator is built into an airbag device, only the plurality of first gas discharge holes of the plurality of gas discharge holes is opened by the pressure of gas; and when the igniter is actuated in an assembled state, the first gas discharge holes except some of the first gas discharge holes and at least some of the second gas discharge holes of the plurality of gas discharge holes are opened by the pressure of the gas.SELECTED DRAWING: Figure 6 【課題】ガス発生器において、単独状態と組付状態との出力性能の差を小さくする。【解決手段】ガス発生器において、複数のガス排出孔は、複数の第１ガス排出孔と、第１ガス排出孔よりも開口圧力の高い１又は複数の第２ガス排出孔と、を含み、ガス発生器がエアバッグ装置に組み込まれる前の状態である単独状態において点火器が作動したときには、複数のガス排出孔のうち、複数の第１ガス排出孔のみがガスの圧力によって開口し、組付状態において点火器が作動したときには、複数のガス排出孔のうち一部の第１ガス排出孔を除く第１ガス排出孔と少なくとも一部の第２ガス排出孔とがガスの圧力によって開口するように、第１ガス排出孔の開口圧力と第２ガス排出孔の開口圧力とが設定されている。【選択図】図６