Slide fastener stringer
AssigneeYoshida Kogyo K.K.
InventorsYoshio Matsuda, Ryuichi Murasaki
Life of this patent
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Abstract
A slide fastener stringer includes a reinforcing cord on and along one edge of a stringer tape, the reinforcing cord having a central core and a warp-knit tube surrounding the core and extending longitudinally therewith. The warp-knit tube is made on a circular knitting machine and formed with a plurality of knitting threads having needle loops angularly spaced around the core and sinker loops extending circumferentially across and over the core and between the needle loops. The needle and sinker loops are urged into fastening or clinching engagement with the core.
Claims5
A slide fastener stringer comprising a stringer tape having a reinforcing cord on and along its one edge, and a series of fastener elements mounted on and along said reinforcing cord, said reinforcing cord including a central core and a warp-knitted tube surrounding said central core and extending longitudinally therewith, said warp-knitted tube including a plurality of knitting threads each having respective needle loops alternately circumferentially spaced around said central core and sinker loops extending circumferentially across and over a peripheral area of said central core and between said circumferentially spaced needle loops, said needle loops of one of the knitting threads being interlooped with those of another knitting thread, the peripheral areas of said central core on which the sinker loops of said interlooped knitting threads are disposed having respective portions circumferentially oppositely spaced from each other, whereby said needle and sinker loops are urged into fastening engagement with said central core.
Dependencies are inferred from the claim text.