Patent ID: 7290798

Claim:
A method for folding an airbag that is inflated and deployed at a position rearward of a rearmost seat of a vehicle to protect an occupant seated on the rearmost seat, wherein the airbag has a supply port through which gas is supplied and is accommodated in the interior of the vehicle while being folded in a state extending along a width direction of the vehicle, wherein, when gas is supplied through the supply port to the airbag in the folded state, the air bag is deployed in a predetermined first direction, wherein the airbag has a lateral cell and vertical cells, the lateral cell extending in a second direction that intersects the first direction, the lateral cell being connected with the supply port, the vertical cells extending in the first direction and being connected with opposite ends of the lateral cell in the second direction, the method comprising: first folding in which the airbag is folded such that first end portions of the airbag approach each other with respect to the first direction; and second folding in which, after the first folding, second end portions of the airbag in the second direction are folded at sections corresponding to the vertical cells toward a center of the airbag with respect to the second direction, wherein in the second folding, the second end portions are folded in a plane that includes the first and second directions.