Air bag apparatus
First Claim
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1. An air bag apparatus comprising:
- a gas generating means for generating a gas when a vehicle rapidly decelerates;
a bag body having a bag body opening portion which communicates with said gas generating means to be operatively expanded by said gas generated from said gas generating means;
a base member for holding a peripheral edge of said bag body opening portion; and
a plurality of reinforcing materials having respectively different sizes and being superposed in a layer fashion on said peripheral edge of said bag body opening portion to reinforce said bag body, respective inner end portions of said bag body and of said plurality of reinforcing materials being held by said base member, said plurality of reinforcing materials being respectively and sequentially sewn onto said bag body at different portions in order of shorter length with said reinforcing materials in a state of contact with said bag body, each of said reinforcing materials being respectively and independently sewn only at a portion in the vicinity of an outer end thereof to said bag body opening portion, and none of said reinforcing materials being sewn to each other.
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Abstract
In an air bag apparatus, a bag body has a bag body opening portion. The bag body opening portion communicates with a gas generating apparatus for generating gas when a vehicle rapidly decelerates. Further, the bag body is expanded by gas generated from the gas generating apparatus. A base plate holds a peripheral edge of the bag body opening portion. A plurality of reinforcing materials is superposed in layered fashion on the peripheral edge of the bag body opening portion to reinforce the bag body. One portion is held by a base member. The plurality of reinforcing materials are respectively sewn to the reinforcing materials contacting the bag body.
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Citations
19 Claims
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1. An air bag apparatus comprising:
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a gas generating means for generating a gas when a vehicle rapidly decelerates; a bag body having a bag body opening portion which communicates with said gas generating means to be operatively expanded by said gas generated from said gas generating means; a base member for holding a peripheral edge of said bag body opening portion; and a plurality of reinforcing materials having respectively different sizes and being superposed in a layer fashion on said peripheral edge of said bag body opening portion to reinforce said bag body, respective inner end portions of said bag body and of said plurality of reinforcing materials being held by said base member, said plurality of reinforcing materials being respectively and sequentially sewn onto said bag body at different portions in order of shorter length with said reinforcing materials in a state of contact with said bag body, each of said reinforcing materials being respectively and independently sewn only at a portion in the vicinity of an outer end thereof to said bag body opening portion, and none of said reinforcing materials being sewn to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An air bag apparatus comprising:
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an inflator for generating gas when a vehicle rapidly decelerates; a bag body having a bag body opening portion which communicates with said inflator to be operatively expanded by said gas generated from said inflator; a base plate for holding a peripheral edge portion of said bag body opening portion; and a plurality of reinforcing materials each having a different size, and being sequentially superposed in a layer fashion on said peripheral edge of said bag body opening portion of said bag body with said reinforcing material having the smallest area starting from an inner surface of said bag body so as to reinforce said bag body, one portion being held by said base plate, said plurality of reinforcing materials respectively including sewn portions in a vicinity of outer peripheries of said reinforcing materials, said sewn portion being sewn onto said bag body at different portions of said bag body such that said plurality of reinforcing materials are sequentially superposed on said bag body from said reinforcing material having the smallest area, said sewn portion being in a state of contact with said bag body at positions which become more distant from said bag body opening portion as respective surface areas of said plurality of reinforcing materials increase from said smallest area, each of said reinforcing materials being respectively and independently sewn only at a portion in the vicinity of an outer end thereof to said bag body opening portion, and none of said reinforcing materials being sewn to each other. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification