Coil-type fluid-impervious zipper and commercial product using same

Abstract

A coil-type fluid-impervious zipper including: a left chain connected with a left supporting fabric tape, and a right chain connected with a right supporting fabric tape; where a left filler structure made of a first thermoplastic elastomer is formed within the left chain, a right filler structure made of the first thermoplastic elastomer is formed within the right chain, a left attachment strip made of a second thermoplastic elastomer is connected to a right side of the left filler structure, a right attachment strip made of the second thermoplastic elastomer is connected to a left side of the right filler structure, and when the coil-type fluid-impervious zipper is zipped up, the left attachment strip and the right attachment strip are compressed to engage with each other within a first gap formed between the left filler structure and the right filler structure.

What is claimed is: 
     
         1 . A coil-type fluid-impervious zipper including:
 a left chain connected with a left supporting fabric tape and a right chain connected with a right supporting fabric tape;   wherein a left filler structure made of a first thermoplastic elastomer is formed within the left chain, a right filler structure made of the first thermoplastic elastomer is formed within the right chain, a left attachment strip made of a second thermoplastic elastomer is connected to a right side of the left filler structure, a right attachment strip made of the second thermoplastic elastomer is connected to a left side of the right filler structure, and when the coil-type fluid-impervious zipper is zipped up, the left attachment strip and the right attachment strip are compressed to engage with each other within a first gap formed between the left filler structure and the right filler structure, so as to minimize a seam between the left attachment strip and the right attachment strip.   
     
     
         2 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein the left attachment strip and the right attachment strip are formed by dividing an attachment strip filled between and attached with the left filler structure and the right filler structure. 
     
     
         3 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein the left attachment strip and the right attachment strip are formed by dividing an attachment strip bonded on a combined free end surface formed by a free end surface of the left filler structure and a free end surface of the right filler structure. 
     
     
         4 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein both the left supporting fabric tape and the right supporting fabric tape have a waterproof layer attached thereon. 
     
     
         5 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein both the left attachment strip and the right attachment strip have an extension part, the pair of extension parts covering at least a portion of a top surface of a left filler part of the left filler structure and at least a portion of a top surface of a right filler part of the right filler structure. 
     
     
         6 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein both a left filler part of the left filler structure and a right filler part of the right filler structure have a waterproof layer attached on a top surface thereof. 
     
     
         7 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein both a left filler part of the left filler structure and a right filler part of the right filler structure have a waterproof layer attached on a top surface thereof, and both the left attachment strip and the right attachment strip have an extension part, the pair of extension parts covering at least a portion of the waterproof layer atop the left filler part and at least a portion of the waterproof layer atop the right filler part. 
     
     
         8 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein the left attachment strip and the right attachment strip are formed separately. 
     
     
         9 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein the left attachment strip is formed at a right end of a left half of a layer of the second thermoplastic elastomer, the left half covering the left supporting fabric tape and a left filler part of the left filler structure, and the right attachment strip is formed at a left end of a right half of the layer of the second thermoplastic elastomer, the right half covering the right supporting fabric tape and a right filler part of the right filler structure; and the left half of the layer of the second thermoplastic elastomer has a left half of a waterproof layer attached thereon, and the right half of the layer of the second thermoplastic elastomer has a right half of the waterproof layer attached thereon. 
     
     
         10 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein the left attachment strip covers a top surface and a free end surface of a left filler part of the left filler structure, and the right attachment strip covers a top surface and a free end surface of a right filler part of the right filler structure. 
     
     
         11 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein the left attachment strip covers a top surface and a free end surface of a left filler part of the left filler structure and has a top surface substantially flush with a top surface of the left supporting fabric tape; the right attachment strip covers a top surface and a free end surface of a right filler part of the right filler structure and has a top surface substantially flush with a top surface of the right supporting fabric tape; a left half of a waterproof layer covers the top surface of the left filler part and the top surface of the left supporting fabric tape; and a right half of the waterproof layer covers the top surface of the right filler part and the top surface of the right supporting fabric tape. 
     
     
         12 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein a left half of a waterproof layer is attached to the left supporting fabric tape by an adhesive, and a right half of the waterproof layer is attached to the right supporting fabric tape by the adhesive. 
     
     
         13 . The coil-type fluid-impervious zipper as disclosed in  claim 1 , wherein both the left supporting fabric tape and the right supporting fabric tape have a water-repellent agent covering a surface thereof. 
     
     
         14 . A commercial product including the coil-type fluid-impervious zipper as disclosed in  claim 1 . 
     
     
         15 . The commercial product as disclosed in  claim 14 , being an article of commercial product selected from a group consisting of an article of clothes, an article carrier, and a camping gear.