Fabric material for producing woven air bags utilized for protecting riders in vehicles
First Claim
1. An improved fabric material for producing woven air bags utilized for protecting occupants in vehicles, said fabric material comprising a plurality of large tubular weave portions periodically formed in the direction of the warp yarns and a stitched portion formed between two adjacent tubular weave portions, said stitched portion having at least one small tubular weave portion formed therein, the warp yarns for constructing a face fabric of said tubular weave portion and the warp yarns for constructing a back fabric of said tubular weave portion being respectively used as the warp yarns for constructing a back fabric of a successive small tubular weave portion and as the warp yarns for constructing a face fabric of said successive small tubular weave portion of said stitched portion, the crossing angle of each warp yarn at a boundary portion between said large tubular weave portion and said stitched portion being smaller than the crossing angle of each weft yarn.
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Accused Products
Abstract
An improved fabric material for producing woven air bags utilized for protecting riders in vehicles. The fabric material is composed of a plurality of tubular weave portions formed along the warp direction and a stitched portion formed between two adjacent tubular weave portions. Each stitched portion is provided with at least single small tubular weave construction formed along a warp direction. The warp yarns forming the face fabric of a large tubular weave portion and the warp yarns forming the back fabric of the large tubular weave portion are respectively used as the warp yarns for forming the back fabric of the successive small tubular weave construction and the warp yarns for forming the face fabric of the successive small tubular weave construction. Woven air bags are produced by cutting the central portion of the stitched portion along a weft direction. The fabric material may be coated with a thin layer of coating resin material.
41 Citations
12 Claims
- 1. An improved fabric material for producing woven air bags utilized for protecting occupants in vehicles, said fabric material comprising a plurality of large tubular weave portions periodically formed in the direction of the warp yarns and a stitched portion formed between two adjacent tubular weave portions, said stitched portion having at least one small tubular weave portion formed therein, the warp yarns for constructing a face fabric of said tubular weave portion and the warp yarns for constructing a back fabric of said tubular weave portion being respectively used as the warp yarns for constructing a back fabric of a successive small tubular weave portion and as the warp yarns for constructing a face fabric of said successive small tubular weave portion of said stitched portion, the crossing angle of each warp yarn at a boundary portion between said large tubular weave portion and said stitched portion being smaller than the crossing angle of each weft yarn.
Specification