Patent ID: 7665765

Claim:
A method of folding an air bag, the air bag including a first surface portion that is formed with a gas inlet opening through which a gas is introduced and a second surface portion that faces the first surface portion, the method comprising: a placement process wherein the airbag is placed in a flat condition on a surface portion; a regulating process wherein, along a plurality of radial lines extending from a periphery of the flat air bag to the gas inlet opening and while the air bag is in the flat condition, the first and second surface portions are moved closer together; thereafter, a first gathering process wherein portions positioned between the lines are pressed toward the gas inlet opening to form a first gathering portion; and thereafter, a second gathering process wherein after completion of the first gathering process, the regulated portions that have been moved closer to each other are pressed toward the gas inlet opening to form a gathering portion around the first gathering portion thereby to constitute a second gathering portion.