Thin zipper

Abstract

A thin zipper includes two sets of coil zippers fastened to two base cloths. Each coil zipper includes a plurality of teeth and at least one core wire threading through the teeth and coupling the teeth in series. Each tooth includes a bracing section, two bent sections extended from two distal ends of the bracing section and a surface section. The bracing section has a bracing inner edge on an inner side to brace the core wire. Each bent section has a latch portion engaged with another latch portion of a different tooth. The surface section is located between the two bent sections and has a packing inner edge formed on an inner side to compress the core wire to generate deformation. The bracing inner edge and packing inner edge form an inner space between them at an interval smaller than the diameter of the core wire.

1 . A thin zipper, including two sets of coil zippers fastened to two base cloths, each coil zipper including a plurality of teeth and at least one core wire threading through the teeth and coupling the teeth in series, each tooth comprising:
 a bracing section leaning on the base cloth and including a bracing inner edge on an inner side to brace the core wire;   two bent sections extended from two distal ends of the bracing section, each bent section including a latch portion engaged with another latch portion formed on a different tooth; and   a surface section located between the two bent sections and including a packing inner edge on an inner side through a forming process to compress the core wire to generate deformation, the bracing inner edge and the packing inner edge forming an inner space between them at an interval smaller than a diameter of the core wire.   
     
     
         2 . The thin zipper of  claim 1 , wherein the surface section includes an upper edge and the bracing section includes a lower edge that form respectively a reinforcing flat surface. 
     
     
         3 . The thin zipper of  claim 2 , wherein the reinforcing flat surfaces are respectively spaced from a sliding element which drives the two sets of coil zippers to engage with each other to form a gap between them. 
     
     
         4 . The thin zipper of  claim 3 , wherein the gap is formed at a height at least greater than a thickness of a stitch sewed around the teeth.