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US 2023/0397701 A1Published application
Waterproof slide fastener and method of producing the same
AssigneeYKK Corporation
InventorsKazutoshi MIZUSHIMA, Daisuke MORIMOTO, Toshinori KIRA, Kazuya TANIGUCHI, Ryo MIKUMA
Life of this patent
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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.
Claims20
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.
3 more elements
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.
5 more elements
Dependencies are inferred from the claim text.