Air bag of air bag device
First Claim
1. An air bag of an air bag device, said air bag being capable of being coupled to an inflator and expanded when gas is supplied thereto by said inflator, said air bag comprising;
- a base cloth formed by stitching a plurality of portions of said base cloth together to thereby form said base cloth into the shape of a bag, wherein said stitching includes both non-extendable stitching and extendable stitching, the stitching employed on portions of said base cloth adjacent to where said inflator can be coupled to said air bag comprises a non-extendable stitching, and the stitching elsewhere on said base cloth comprises an extendable stitching.
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Accused Products
Abstract
An air bag is made by forming a base cloth into the shape of a bag by stitching. The air bag is expanded by gas supplied from an inflator. Stitching of areas of the base cloth in the vicinity of the inflator is made non-extendable stitching, and stitching of areas of the base cloth distant from the inflator is made extendable stitching. As a result, even if the output of the inflator is high, gas leakage in the vicinity of the inflator can be prevented. Also, even if the output of the inflator is high, it is possible to suppress damage suffered by stitching thread in areas of stitching in the vicinity of the inflator.
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Citations
9 Claims
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1. An air bag of an air bag device, said air bag being capable of being coupled to an inflator and expanded when gas is supplied thereto by said inflator, said air bag comprising;
a base cloth formed by stitching a plurality of portions of said base cloth together to thereby form said base cloth into the shape of a bag, wherein said stitching includes both non-extendable stitching and extendable stitching, the stitching employed on portions of said base cloth adjacent to where said inflator can be coupled to said air bag comprises a non-extendable stitching, and the stitching elsewhere on said base cloth comprises an extendable stitching. - View Dependent Claims (2, 3, 4)
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5. An air bag device comprising:
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an inflator; an air bag, said air bag being coupled to said inflator and being expandable by gas supplied from said inflator, said air bag comprising; a base cloth formed by stitching a plurality of portions of said base cloth together to thereby form said base cloth into the shape of a bag, wherein said stitching includes both non-extendable stitching and extendable stitching, the stitching employed on portions of said base cloth adjacent to said inflator is non-extendable stitching, and the stitching elsewhere on said base cloth is extendable stitching. - View Dependent Claims (6, 7, 8)
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9. An air bag of an air bag device, said air bag being capable of being coupled to an inflator and extended when gas is supplied thereto by said inflator, said air bag comprising:
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a base cloth formed by stitching into the shape of a bag; wherein the stitching employed adjacent to where said inflator can be coupled to said air bag comprises non-extendable stitching, and the stitching elsewhere on said base cloth is an extendable stitching; and said air bag further comprises a main body part shaped substantially like a rectangular tube and two pairs of mutually facing attachment flaps provided at an end of said main body part; said base cloth includes two small base cloth portions and a large base cloth portion; said two small base cloth portions constitute one of said two pairs of mutually facing attachment flaps and side faces of said main body part, and have in the vicinity of each of their attachment flaps a through hole through which said inflator is capable of being inserted; said large base cloth portion constitutes the other of said two pairs of mutually facing attachment flaps and the remainder of said main body part; and said small base cloth portions are each attached by said stitching to a side edge of said large base cloth portion and the stitching is non-extendable stitching in an area in the vicinity of the attachment flaps and is extendable stitching in an area distant from the attachment flaps.
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Specification