KR800000702Y1 - Reinforcement for slide fastener - Google Patents

Abstract

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Description

String Strap for Slide Fastener

1 is a perspective view showing an example of a specific embodiment of the core string according to the present invention.

Figure 2 is an organization chart showing the knitting state of the present invention string.

3 and 4 are perspective views each showing a state of use of the core string.

The present invention relates to a seam string used in a slide fastener, and an object of the present invention is to provide a seam string that can always have a moderate hardness and a constant shape, thereby enhancing the attachment stability of an element by using it in the slide fastener. At the same time, it is intended to be able to perform a high-precision fastener action.

Conventionally, as a string of slide fasteners, twisted strings having a shape in which two or more strands are twisted together to form a round shape are generally used. In the case, since the string part in contact with an element made of metal or synthetic resin is easily deformed, there is a case that the adhesion strength of the element is not sufficient. In another conventional technique, the core is covered with a cylindrical upper tube, but it is easy to stretch in the circumferential direction unlike a twisted string and is a tub of the upper tissue. Because of the possibility of fastening the core material by the knitting yarn due to the covering, the lack of mutual integrity in the coupling relationship between the core material and the upper tube and the fastening state as the string are poor. Stability was also undesirable.

Therefore, the present invention solves the above-mentioned drawback by strengthening the combination of the core material and the knitting yarn by applying an independent study to the knitting organization of the knitting yarn (follicle: 外包 薩) surrounding the outer circumferential surface of the core material.

Hereinafter, the structure of the core string according to the present invention will be described in detail with reference to the accompanying drawings.

In the figure, (1) is a core material inserted into the center of the core (C), (2) is a knitting yarn surrounding the core material (1), the core material (1) yarns such as cotton yarn, synthetic fiber yarn (Iii) or a filament or metal wire made of synthetic resin, or a cotton yarn or synthetic fiber yarn such as nylon or polyester, or a synthetic resin filament corresponding thereto, for the knitting yarn 2, whereby The knitting yarn 2 surrounding 1) is knitted in a tubular shape by a warp knitting structure such as a tricot piece, in particular, by double row needles, and at the same time, each of the knitting yarns 2 A sinker loop 2b that will interconnect the needle loops 2a with the sinker loops 2b to narrow the core 1 as shown in FIG. The core material (1) is strongly enclosed, and the core string (C) is fixedly coupled so that it always has a proper hardness and a certain shape. .

Figure 2 shows an example of the knitting structure of the seam cord (C) according to the present invention, in the production of the seam cord (C) double raschel knitting machine (double raschel knitting machine) or double tricot knitting machine (double tricot knitting machine) Using a double-needle needle knitting machine such as the back, the front body and the rear body are vibrated symmetrically in opposite directions, respectively, to be knitted into each of two strands of knitting (2) and (2), and at the center of the core material The sinker loops (2b) and (2b) of two strands before and after each of the needle loops (2a) and (2a) connected by incorporating (1) as a light insertion yarn without vibrating the body at all are diagonal "X". "Crossed in the shape of a core and the core material (1) was organized to narrow. On the other hand, in the actual case, since the cores C are knitted in parallel in parallel with each other, transverse yarn as shown in the connecting yarn 3 made of, for example, a water-soluble fiber is shown between the tissues of each unit. The connecting yarn 3 is manufactured by means of dissolving the connecting yarn 3 by heating water or the like in a post-treatment step and separating the connecting yarn 3 into individual strings C. Moreover, among the said structures, the knitting organization which encloses the core material 1 is a warp knitted fabric other than this, if the sinker loop 2b of each knitting fabric 2 intersects diagonally "X" shape and fastens the core material 1, and this is the case. Even if organized into a tissue, there is no problem, and needle loops 2a of the knitting yarn 2 are not necessarily limited to closed laps, as shown, but some or all of the opening rings環 目: open lap) may be formed.

Since the core string according to the present invention has the structure as described above, for example, the core strings C and (C) are directly inserted or incorporated into one side end upper and lower surfaces of the fastener tape T as shown in FIG. After attachment by means of sealing or sealing or the like, an element E is laid over the upper and lower strings C and C, or the string C is an element of continuous filament as shown in FIG. It is affixed by the means which seals with the sealing thread S to the upper surface of the one side end part of the tape T, communicating between upper and lower leg parts of E '.

As described above, the core cord of the present invention is different from the conventional cords, and the outer peripheral surface of the core material is all surrounded by the loops of the knitting yarns of warp knitting tissues. Since the clamping force of the core by the knitting loop is so strong that the core is made of a string that does not have to worry about the differential of the core in the major axis direction and the circumferential direction, the core string is always moderate in hardness and constant. The shape can be retained, and furthermore, it has almost no stretch in the long axis and the circumferential direction, and also has the unique flexibility of the annular strap. There is no worry about it, so if you use it on a slide fastener, Strengthening thoroughly precision fastener can exhibit a high activity. In addition, since the core string of the present invention is composed entirely of loops of warp knit tissue, there is no directionality on the string, and the twisted strings do not need to be distinguished from those of the left and right sides, such as braided. The production control of the fastener tape also has a simple advantage.

Claims (1)

The core material (1) as a sinker loop (2b) that interconnects each needle loop (2a) such as a tricot piece surrounding the core material (1). Slip string for the slide fastener, characterized in that for pinching.