Patent attributes
Provided are an airbag and an airbag device whose size of a package when the airbag is folded can be reduced while demonstrating effects of an inner chamber. An airbag device in the present invention includes a gas generator configured to generate gas under predetermined conditions, an airbag connected to the gas generator to be inflated and deployed, and a retainer configured to accommodate the airbag. The airbag includes an inner panel arranged in the interior thereof and a connection panel having a surface area smaller than the inner panel, and the inner panel includes a center seamed portion connected to an inner surface of the airbag with respect to the direction of thickness and a plurality of outer peripheral seamed portions connected to the connection panel which is arranged on the inner surface of the airbag apart from the portion where the center seamed portion is connected. The outline of the inner panel 4 between the outer peripheral seamed portions when the inner panel is deployed in a plane is formed into a shape following a straight line connecting the outer peripheral seamed portions.
