KR790001498Y1 - Warp-knitted tape for slide fastener - Google Patents

Abstract

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Description

Warp tape used in slide fasteners

1 is an organization chart of an embodiment of the present invention.

2 is a model cross-sectional view showing the sealing state of the fastener-element.

The present invention relates to a carrier tape for use in a slide fastener, and more particularly to a warp knitted tape in which the fastener element is mounted vertically.

In an attempt to produce warp fastener tapes capable of vertically mounting the fastener elements at predetermined positions, reinforcing the mounting tip of the tape makes the knitting structure very complex. When the fastener element is sealed to the tape, this causes a problem in that the stitching of the knitting yarn having an extremely fine structure does not accurately travel the intended course, and thus the end of the fastener element mounted on the tape becomes inaccurate. In addition, the tapes are prone to wear at the point of friction contact with the slider because the borderline Meriya's structure seen between the web and the mounting tip is rather irregular and weak.

The object of the present invention is to use a slide fastener that reinforces the structural characteristics of fixing the fastener element in a precise position in a predetermined position of the tape by eliminating the drawbacks and allowing the needle to travel correctly along the path of the long axis of the tape. It is to provide an improved warp knitted carrier tape.

Another object of the present invention is to provide an improved warp knitted carrier tape which can sufficiently prevent abrasion caused by frictional contact with a slider during an opening and closing operation of the fastener.

In short, the warp knitted carrier tape of the present invention consists of a warp knitted tape used in a slide fastener composed of a web and a mounting tip extending along its long axis. The first stage of lapping threads extending across the chain stitches and at least two adjacent wales and consisting of this and the countermeasured meandering stitches extend across the multiple wales , The chain stitch and the minting stitch are arranged to wind up the point of declination in the respective courses, and the above-described mounting tip is moved to the first wale located in the innermost corner and the second wale adjacent to the first wale. While constructed, it is possible to provide an inter wale groove between the first and second wales described above, which is wider than the pitch spacing of the wales in the web. Spaced apart so as to be spaced apart, and the second end of the transversely wound winding forms a thick yarn across the wale and the adjacent wale described above, the adjacent wale having a narrower wale groove than the remaining grooves in the web. It is characterized by being in close contact with each other to provide. The present invention is described in detail with reference to the accompanying drawings and other objects and features as follows.

FIG. 1 shows a carrier tape 10 of warp knit tissue for use in a slide fastener consisting of a web 11 and a mounting tip 12 extending along its long axis. The web 11 is a tricot stitch 14 or a meandering stitch which transversely extends two adjacent wales, such as a chain stitch 13 and an open-pillar stitch forming a wale W. Consists of These basic tissues include a predetermined number of wales (W), i.e., four wales (W ₁ , W ₂ , winding the point where the chain stitch 13 and the tricot stitch 14 are knit together in each course). Lapping threads traversing W ₃ , W ₄ ) extend laterally. The warp knitting yarn 18 extends along the wale W in a direction to seal the open-laps of each wale W.

The mounting tip 12 of the tape 10 on which the fastener element [(E), FIG. 2] is mounted is a chain stitch 19 for forming the first wale W ₁ and the second wale W ₂ , respectively. ) And (20). The first wale W ₁ and the second wale W ₂ adjacent thereto located at the leading edge or the innermost portion of the tape have a width between the wale grooves wider than the groove Gn in the web 11. Spaced at predetermined intervals to provide.

Due to the wide width of the wale intermediate groove G ₁ , the needle (not shown) is accurate so that the stitching 21 with the fastener element E correctly arranged on the tape 10 can be produced without slipping. You can drive straight along your path. Preferably, the chain stitches 19 and 20 in the mounting tip 12 are formed of relatively thick yarns. The first wale (W ₁ ), the second wale (W ₂ ), the third wale (W ₃ ), and the fourth wale (W ₄ ) interconnected by the transverse windings (17) are wound in the web (11). 17) It is made of thicker and harder threads.

Due to the winding action of the transverse winding 17 'and the tension of the tricot stitch 14, the wales W ₂ , W ₃ and W ₄ are densely packed with each other, so that the middle wale grooves G ₂ and ( G ₃ ) is narrower than the width of the groove Gn in the web 11. This process is easily accomplished by eliminating tricot stitches in the wale W ₁ and W ₂ regions. This process makes it possible to provide a rigid tape 22 which is limited by three wales W ₂ , W ₃ , W ₄ that pull each other and also has high wear resistance even under frictional contact during reciprocating movement of the slider.

Arranged along the wales W ₁ and W ₂ of the mounting tip 12 are also warp knitting yarns 18a and 18b, which are also knitted in a web of tape. Reference numeral 23 denotes a connecting thread suitable for connecting a plurality of parallel unit tapes in the width direction, and removing them separates the tape by the length of the unit product as in the known method.

At connection 23, the first wale W ₁ is urged to the left in the drawing, and at the same time the wale W ₁ is tensioned toward the right by the windings 17 ′ and the two tensile forces in the opposing direction are mutually opposite. Offset is made to sandwich the wale W ₁ at a predetermined position from the adjacent wale W ₂ . It is apparent that the wale W ₄ adjacent to the web 11 of the tape 10 is held in a predetermined position by the tension force of the windings 17 and 17 'and cancels the tension force in opposite directions. Since there is no tricot stitch or other stitches between the second wale (W ₂ ) and the first wale (W ₁ ), the second wale (W ₂ ) is drawn by the tension of the windings (17) and the tricot stitches (14). In the right direction and deflected toward the fourth wale W ₄ to simultaneously urge the third wale W ₃ so that the middle wale groove G ₁ between the first and second wale is formed in the web 11. It becomes wider than the residual groove | channel Gm in ().

Referring to FIG. 2, there is shown a method of mounting the longitudinal column of the fastener element E on the tape 10 according to the method of the present invention. The fastener element E is inserted together with the core 24, and the stitching element is driven along the stitching portions 12 and along the edges E _a and E _b of the fastener element by the stitching 21. 12) is completely mounted on. Since the needle needle 21 is firmly moored in the wide groove G ₁ , the positional stability of the fastener element E is excellent.

Claims (1)

As shown in the figure, in a warp knit tape used in a slide fastener composed of a web and a mounting tip extending along the long axis of the two webs, the above-described web includes a chain stitch and at least two adjacent wales to form a long axis extended wale. The first end of the transverse winding, which consists of a transversely stretched and counterfeit minced stitch, extends across a number of wales, with the chain stitch and the midder stitch stitched at the point within each course. And the above-described mounting tip is composed of a first wale located in the innermost corner and a second wale adjacent to the first wale, and the pitch of the wale in the web between the first wale and the second wale described above. Spaced apart at predetermined intervals to provide a wider wale intermediate groove, the second end of the transverse winding being adjacent to the wale described above. Warp tape used in a slide fastener, characterized in that it forms a thick yarn across the wale and the adjacent wales described above are in close contact with each other to provide a narrower wale groove than the remaining grooves in the web.