Waterproof slide fastener and method of producing the same

Abstract

An interconnection sheet is arranged which is separate to a rear stop. At least one second securement hole in at least one of left and right waterproof tapes is not covered by the interconnection sheet, and a rear stop is arranged to fill the at least one second securement hole.

1 . A waterproof slide fastener comprising:
 left and right fastener stringers including left and right waterproof tapes and left and right rows of fastener elements where fastener elements are arranged, the left and right rows of fastener elements secured to side-edges of the left and right waterproof tapes, and each of the left and right waterproof tapes including a row of securement holes including a linear arrangement of securement holes at a predetermined pitch;   an interconnection sheet that joins the left and right waterproof tapes in a rear end of the waterproof slide fastener; and   a rear stop arranged at a rear contiguous position of the left and right rows of fastener elements, wherein   the row of securement holes in each of the left and right waterproof tapes includes a multiplicity of first securement holes and one or plural second securement holes arranged on a side of the rear stop relative to the multiplicity of first securement holes, respective ones of the first securement holes filled by respective ones of the fastener elements, and wherein   the interconnection sheet is arranged to expose at least one second securement hole of said one or plural second securement holes in at least one of the left and right waterproof tapes, and the rear stop is arranged to fill said at least one second securement hole.   
     
     
         2 . The waterproof slide fastener of  claim 1 , wherein the rear stop includes an upper portion and a lower portion which are arranged at upper and lower sides of the left and right waterproof tapes, and
 the upper portion and the lower portion are interconnected one another via a plurality of plugs only, the plurality of plugs respectively filling the one or plural second securement holes in both of the left and right waterproof tapes.   
     
     
         3 . The waterproof slide fastener of  claim 2 , wherein a pinhole is formed in the lower portion of the rear stop, the pinhole extending to reach the interconnection sheet. 
     
     
         4 . The waterproof slide fastener of  claim 1 , wherein a recess or a cutout is formed in the interconnection sheet to expose the one or plural second securement holes in at least one of the left and right waterproof tapes. 
     
     
         5 . The waterproof slide fastener of  claim 4 , wherein the recess or the cutout is fully filled by the rear stop. 
     
     
         6 . The waterproof slide fastener of  claim 4 , wherein the recess or the cutout is formed not to cross a boundary between the left and right waterproof tapes in a closed condition of the left and right fastener stringers. 
     
     
         7 . The waterproof slide fastener of  claim 1 , wherein the one or plural second securement holes are positioned at a rearmost position in the row of securement holes. 
     
     
         8 . The waterproof slide fastener of  claim 1 , wherein a number of the second securement hole in each one of the left and right waterproof tapes is one. 
     
     
         9 . The waterproof slide fastener of  claim 1 , wherein the rear stop is configured to enclose, at least partially, left and right fastener elements positioned at the rear end of the left and right rows of fastener elements. 
     
     
         10 . The waterproof slide fastener of  claim 1 , wherein a gate mark is formed on the interconnection sheet. 
     
     
         11 . The waterproof slide fastener of  claim 10 , wherein another gate mark different from the one formed on the interconnection sheet is formed on the rear stop. 
     
     
         12 . A method of producing a waterproof slide fastener, the method including:
 producing a fastener stringer wherein a row of fastener element where fastener elements are arranged is secured to a side-edge of a waterproof tape;   forming an interconnection sheet onto a fastener chain including a pair of the fastener stringers; and   forming a rear stop onto the fastener chain through injection molding, wherein   rows of securement holes each of which including a linear arrangement of securement holes ( 91 , 92 ) at a predetermined pitch are formed in the respective ones of left and right waterproof tapes,   the respective rows of securement holes include a multiplicity of first securement holes and one or plural second securement holes arranged on a side of the rear stop relative to the multiplicity of first securement holes,   the interconnection sheet is formed through injection molding to expose at least one second securement hole in at least one of the left and right waterproof tapes and,   the rear stop is formed through injection molding to fill said at least one second securement hole.   
     
     
         13 . The method of producing a waterproof slide fastener of  claim 12 , wherein the rear stop includes an upper portion and a lower portion which are arranged at upper and lower sides of the left and right waterproof tapes, and
 the upper portion and the lower portion are interconnected one another via a plurality of plugs only, the plurality of plugs respectively filling the one or plural second securement holes in both of the left and right waterproof tapes.   
     
     
         14 . The method of producing a waterproof slide fastener of  claim 12 , wherein a recess or a cutout is formed in the interconnection sheet to expose the one or plural second securement holes in at least one of the left and right waterproof tapes. 
     
     
         15 . The waterproof slide fastener of  claim 1 , wherein the rear stop includes:
 an upper portion;   a lower portion; and   a plurality of plugs by which the upper and lower portions are interconnected, wherein   the plurality of plugs includes one or more first plugs filling said one or plural second securement holes in the left waterproof tape, and one or more second plugs filling said one or plural second securement holes in the right waterproof tape.   
     
     
         16 . The waterproof slide fastener of  claim 15 , wherein the interconnection sheet is shaped to have a recess or a cutout that overlaps said at least one second securement hole. 
     
     
         17 . The waterproof slide fastener of  claim 16 , wherein the one or plural second securement holes are positioned at a rearmost position in the row of securement holes. 
     
     
         18 . The waterproof slide fastener of  claim 17 , wherein a number of the second securement hole in each one of the left and right waterproof tapes is one. 
     
     
         19 . The waterproof slide fastener of  claim 17 , wherein the rear stop is configured to enclose, at least partially, left and right fastener elements positioned at the rear end of the left and right rows of fastener elements. 
     
     
         20 . The waterproof slide fastener of  claim 17 , wherein a first gate mark is formed on the interconnection sheet, and a second gate mark is formed on the rear stop.