Inflator bag for occupant restraint device and method of manufacturing the inflator bag
First Claim
1. 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, andwherein the ceiling plate is slanted with respect to the bottom plate.
1 Assignment
0 Petitions
Accused Products
Abstract
By forming a resin sheet or a metal sheet, an angular-box-shaped bag main body (51) having gore portions (54) on surrounding side faces to ensure its height is formed. A folded line (55) to be folded, in a manner to form a valley line, toward an inside of the box-shaped bag main body (51) is formed in an intermediate portion of each of the gore portions (54) in a height direction. A triangular overlaid and folded portion (56) is formed in an end of each of the gore portions (54a) on each of the surrounding side faces with each corner portion of the angular-box-shaped bag main body (51) being sandwiched between one surrounding side face and another surrounding side face adjacent to the one surrounding side face in which the gore portion (54b) is folded in an overlaid manner in the overlaid and folded portion (56) at a same time when another gore portion on another surrounding side face is folded. The angular box-shaped bag main body (51) is folded so as to be in a flat state by allowing each of the gore portions to be folded in a manner to form a valley line along the folded line (55). By blocking a bottom face being opposite to a ceiling plate (52) with a bottom plate (53), the box-shaped bag main body (51) has a hermetically sealed structure. By configuring above, an inflator bag (50) for a vehicle occupant restraining apparatus is obtained. Thus, the inflator bag (50) is able to be housed in a compact manner and to be developed so as to be in a stable state with a sufficient developing stroke being ensured and able to be processed easily.
24 Citations
15 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification