Patent ID: 6890002
Filing Date: 2005-05-10
Classification: B60R

Abstract:
1. A gas generator comprising: a single cylinder housing comprising an upper lid and a lower lid joined together, the upper lid having a bowl shape including a top plate portion and a side cylinder portion extending downward, the side cylinder portion being provided with a plurality of gas discharge holes, the lower lid having a bowl shape including a side cylinder portion and a bottom plate portion having a thickened wall portion, the lower lid including an ignitor holding portion including an inner side cylindrical portion, said thickened wall portion being formed as a step portion around an outer circumference of a base portion of the inner side cylindrical portion, said ignitor holding portion being formed integrally with the bottom plate portion on the thickened wall portion, the upper and lower lids comprising one of iron and steel, and said housing having substantially the same thickness except for the thickened wall portion; an ignitor held by the ignitor holding portion by caulking in a center portion of the single cylinder housing; and a plurality of gas generating devices provided around the ignitor in the single cylinder housing.