AIR BAG APPARATUS, AIR BAG FOLDING METHOD, AND AIR-BAG FOLDING DEVICE

摘要

An air bag (12) is spread into a circular shape. Then, the air bag (12) is positioned around the periphery of an inflator (16), and is folded into an approximately corrugated shape from its four sides, thereby forming four side portions (61) along the inflator (16). Then, four excess portions (62) each of which projects outward from the place between the side portions (61) are superimposed on the outer sides of the respective side portions (61). The air bag (12) can be easily folded into a small shape which can be smoothly expanded.