GAS GENERATOR

A gas generator comprising a first cup case (3) packing therein gas generant (2) to generate gas by the burning of it, a squib (5) having a second cup case E arranged in an inside of the first cup case (3) and containing an ignition charge D, a squib case (7) having a hole (20) and covering the second cup case E, and a holder (6) to hold the squib case (7) and second cut case E by crimping, wherein the holder (6) has holes (13, 14) for allowing passage of electrode pins (11, 12) of the squib (5), one for each of the electrode pins (11, 12).