KR820001979Y1 - Slide fastener - Google Patents

Abstract

No content.

Description

Slide fasteners

1 is a large direct insertion of an embodiment of a slide fastener according to the present invention ) Perspective view showing the organization of the part.

2 is a cross-sectional view taken along line 2-2 of FIG.

(A) (b) (c) (d) of FIG. 3 indicate the paths of picks, respectively, along the II, II-II, III-III and IV-IV lines of FIG. Cross-section.

4 is a plan view of the completed slide fastener.

5 is a longitudinal sectional view of the completed slide fastener.

The present invention relates to a slide fastener in which a coil-shaped fastener element is fixed by a large indentation portion of a tapered edge and a seam string and an overcoat disposed inside and outside the connection inverting portion of the coil-shaped fastener element.

A number of slide fasteners in which coil-like fastener elements are fixed by the large indentation of the tape, which is an element support, have already been proposed, but all of them slide in the slider because the elements are not fixed securely, and thus the conductive shape is easily formed and the elements are not protected There was a drawback of being prone to damage by contact. The shortcomings of the coil-like fastener elements are arranged in the inner part of the connection inversion of the coil-shaped fastener element. Applicants have proposed a tightly fastened slide fastener. This invention further improves the slide fastener concerning this prior invention.

In other words, the present invention uses the twist yarn as the seam strap and the seam as the top strap to improve the coil-shaped fastener element attachment stability, the slider guideability is improved, and the chain width dimension stability is high. The purpose is to provide a fastener.

Hereinafter, embodiments of the present invention will be described in detail with the drawings. Reference numeral E denotes a coil-like fastener element, and a core string 3 is disposed so as to contact the inside of the connection inverting portion 1, and two strands of the cords so as to contact the outside of the connection inversion portion 1. 4a) and 4b are arranged. As the core string 3, a twisted yarn is used. As the unit yarn of the twisted yarn, it is preferable to use monofilament or multifilament made by twisting short fibers of cotton whose outer circumference is cotton, but a common thread may be used. As the pads 4a and 4b, a shim braid using a screen 5 made of a bundle or twisted yarns and an outer circumferential knitted layer 6 to cover the outer circumference thereof is used.

The coil-shaped fastener elements E, the core strings 3, and the cover strings 4a and 4b are integrally woven in the large indentation 8 of the tape 7. This large vertical insertion part 8 is comprised as follows. In other words, the continuous inclination 10 of the tape 7 is arranged on the upper and lower surfaces of the cover 4a and 4b and on the upper and lower surfaces of the rear end portions of the parts 2 and 2 of the element E. The warp yarns 11 constituting the dipped paper structure are sandwiched in these inclined groups so that the elements E, the core strings 3, and the cover strings 4a and 4b are integrally tightened. As is clear from the figure, the weft yarns 11 are arranged in two double picks with respect to one pitch of the element, and each warp group 10 descends every four pick cycles with respect to the weft yarns 11.

In addition, the slide fastener described in this embodiment is provided with a needle-like loom, and at the same time, a monofilament made of synthetic resin is supplied to coil the edge of the tape fastener so that it is woven together with the tape. Weft can be reliably arranged, for example in 2 double picks.

With the above-described configuration, when the tape is subjected to heat treatment such as dyeing, the braid 3 is loosened, swollen with water, and swollen in the radial direction, so that the weft yarn 11 that is in contact with the braid 3 is an element (E). To the occlusal head (1). By the way, since the outer periphery knitted layer 6 is a loop structure, ie, it is a knit structure, the covering 4a, 4b hardly changes diameter, even if it heat-processes. Therefore, due to swelling of the string 3, the weft yarn 11 in contact with the string 3 is subjected to a strong tension and is in a state of being stuck in the string 3 (see Fig. 5). In addition, as the tension is applied to the weft yarns, the straps 4a and 4b are firmly pressed against the connection front part 1 of the element and are hardened. The harder the sash and its surroundings, the better the guideability of the slider. In addition, even when the string 3 is inflated, only the tightening force of the weft yarn 11 is counted, and the dimensional stability is maintained without change in the chain width W. In addition, since the diameter of the cord is swelled, the cord is swelled appropriately at the intervals between the elements, and the elements become stuck in the cord as shown in FIGS. 4 and 5, thereby causing the element to slide or fall over the myocardium. Is eliminated and the attachment stability of the element is improved. In addition, as described above, the use of yarn made of twisted cotton short fibers on the outer circumference of the filament as the unit yarn constituting the twisted yarn of the string can increase the swelling property and increase the swelling in diameter during heat treatment by dyeing. In the above embodiment, an example using two strands of an overcoat (4a) and (4b) is shown, but a single strand may be used. However, it is easier to use the two strands to make the edge 13 for the guide of the slider, and it is better to have two strands in view of the guideability of the slider.

As described above, according to the present invention, the use of twisted yarns as core strings and shim strings as padding strings firstly results in a strong body buoyancy in the weft yarns, and the elements are embedded in the strings. Attachment stability is improved, and secondly, since the sash is hardened and hardened, the guideability of the slider is improved so that the chain does not crack. Third, the chain width does not fluctuate because there is no change in the diameter of the lanyard, and thus the stability of the dimension is improved.

Claims (1)

The core string 3 is arranged inside the connection inverting portion 1 of the coil-shaped fastener element E, and the strings 4a and 4b are arranged on the outside thereof, and the tape has a large indentation. In a slide fastener in which a coil-shaped fastener element, a seam string, and a string are tightened by the inclination 10 and the weft 11 constituting the portion 8, the seam is composed of twisted yarns and a braided or braided string. A slide fastener characterized by.