Patent ID: 7431330

Claim:
An inflator bag for a vehicle occupant restraining apparatus being able to expand and develop by a high-pressure gas filled in said inflator bag and is capable of restraining a vehicle occupant by being expanded and developed, comprising: a box-shaped bag main body having gore portions on surrounding side faces to ensure a height of said box-shaped bag main body, wherein, in said gore portions, a folded line to be folded toward an inside of said box-shaped bag main body is formed in an intermediate portion in a height direction of said gore portions, which is used to allow said gore portions to be folded; and an overlaid and folded portion formed in an end of said gore portions on said surrounding side faces with corner portions of said box-shaped bag main body being sandwiched between one surrounding side face and another surrounding side face adjacent to said one surrounding side face, wherein said gore portions are folded in a overlaid manner in said overlaid and folded portions at a same time when another gore portion on another surrounding side face is folded, wherein said box-shaped bag main body is folded in a manner so as to be in a flat state when said gore portions are folded in a manner to form a valley line along said folded line, wherein said box-shaped main body comprises a flat bottom plate and a ceiling plate opposite said bottom plate, and wherein the ceiling plate is slanted with respect to the bottom plate.