Patent ID: 7896387

Claim:
An air bag device for an automobile, comprising: a side air bag member arranged in a folded state attached to a vehicle body side portion or a vehicle seat, which expands by being supplied with a gas upon a vehicle being impacted from the side or rolling over, and which deploys between a passenger seated on the vehicle seat and the vehicle body side portion; and a head portion protection air bag member arranged in a folded state along a roof side rail, which expands by being supplied with a gas upon a vehicle being impacted from the side or rolling over, and which deploys in a curtain shape in a downward direction inside of a vehicle compartment down to a position overlapping a deploying region of the side air bag in a vehicle width direction, and which has a shape that fits with the deployed side air bag member; wherein the shape of the head portion protection air bag member that fits with the deployed side air bag member comprises a recessed portion having a curved contour; wherein the recessed portion includes a nonexpanding portion extending downward from a bottom of the head portion protection air bag member and overlapping the deployed side airbag member in the vehicle width direction and a notch shape comprising a concave surface, the concave surface partially surrounding an opposing convex surface of the side airbag member; and wherein a free bottom edge of the nonexpanding portion closely approximates the curved contour of the recessed portion.