Patent ID: 8628111

Claim:
A side airbag device comprising: an airbag; and an inflator for inflating the airbag, the airbag including an outer bag and an inner bag inflating within the outer bag, the inner bag being provided with a communication opening connecting the inside of the outer bag and the inside of the inner bag, wherein the inflator is disposed in the airbag, and at least a gas jetting portion of the inflator is disposed in the inner bag in the vicinity of the communication opening, wherein the outer bag and the inner bag are each made by folding a panel in half such that the peripheries are superimposed, and the superimposed peripheries are sewn together, wherein the folded edge of the inner bag is disposed along the folded edge of the outer bag, wherein the communication opening is disposed in the vicinity of the folded edge of the inner bag, wherein the inflator is rod-like and is disposed along the folded edge of the inner bag, wherein the gas jetting portion is provided at one end in the longitudinal direction of the inflator, wherein a distributor for distributing gas from the gas jetting portion to the inside of the inner bag and the inside of the outer bag is provided at the one end of the inflator, wherein the inner bag is disposed in the lower part of the inside of the outer bag, and the folded edge is disposed on a vertical edge of the airbag, wherein a vertical edge other than the folded edge, and the lower edge of the inner bag are sewn together with the periphery of the outer bag; and wherein the inner bag and the outer bag are each provided with an opening through which a harness connected to the inflator is passed, and the passing opening of the inner bag and the passing opening of the outer bag are provided at positions such that they are not superimposed on each other.