Airbag folding method, airbag accommodating method, and airbag apparatus

摘要

To provide an airbag folding method, an airbag accommodating method, and an airbag apparatus capable of folding an airbag small so as to improve the accommodating efficiency and to reduce the airbag apparatus in size. An airbag apparatus according to the present invention includes an airbag 1 to be inflated and developed along the surface of a vehicle when detecting or foreseeing a collision of the vehicle with a pedestrian, etc., an inflator 2 for supplying gas to the airbag 1, and a retainer 3 for accommodating the airbag 1 and the inflator 2 therein. The airbag 1 includes a body la to be bulged over the vehicle surface and a pillar covering part 1b to be inflated and developed from the end of the body 1a along a pillar 4 of the vehicle. The pillar covering part 1b is bellows-folded in the inflating and developing direction; the folded pillar covering part 1b is upfolded over the body 1a; and the upfolded pillar covering part 1b is rotated in the protruding direction so as to be accommodated in the retainer 3 in a twisted and upfolded state.