KR890001801Y1 - Slider for slide fastener - Google Patents

Abstract

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Description

Slide for Slide Fastener

1 is a partially developed perspective view of a slider for realizing this design.

2 is a partial cross-sectional plan view of the first degree slider.

3 is a partially exploded perspective view of a modified form of the slider according to the present invention.

4 is a partial cross-sectional plan view of the FIG. 3 slider.

5 is a side view of the two sliders of FIG. 3 used on a slide fastener.

FIG. 6 is a partial cross-sectional plan view similar to FIG. 2 but showing another form.

7 is a perspective view of a modified form of the flap.

8 is a perspective view of a modified form of the pin spring.

9A is a side view of a conventional slider.

9b is a side view of another conventional slider, and

9C is a partial cross-sectional plan view of another conventional slider.

* Explanation of symbols for main parts of the drawings

10: slider 11: slider body

12, 13: upper and lower wing 14: flange

15: guide channel 16: support protrusion

17: pull-tab connector 17e ', 17f, 21, 24a', 24b: hole

19, 24: pull tab 22: tubular spring

23: slit 101: tightening jaw

103: trunnion 106: horizontal pin

P: Pivot F: Slide Fastener

The present invention relates generally to slide fasteners, and more particularly to a slider for a slide fastener that is reciprocally movable to open and close the slide fastener.

In assembling the sliders with their associated pull tabs, the sliders are not immediately assembled when the slider bodies are formed or when the slider bodies are mounted on the slide fastener stringers. It is a common practice to assemble at sewing or at any convenient time during sale.

A typical conventional method of attaching a pull tab is shown in FIG. 9A of the accompanying drawings, where the pull tab 100 is tightened onto the connecting ring 102 pivotally connected to the trunnion 103 on the slider body 104. Jaws 101 are provided. Another method is shown in FIG. 9B, where the trunnion 103 has one end wide enough to accommodate the pull tab 100 with the hole 105 and then through the hole 105 of the slider body 104. It is closed upward.

A more sophisticated slider is shown in FIG. 9C disclosed in Japanese Utility Model Laid-Open No. 57-113015, in which the connecting ring 102 has a pull tab 100 as in the hole 108 of the hinge portion 109, as in 107. There is a transverse pin 106 that is spring biased.

The drawback of the method of FIG. 9A is that the pull tab 100 falls off the slider if the jaws 101 are not exactly pressed against each other with sufficient pressure. In addition, the difficulty of the method of FIG. 9b is that closing the trunnion 103 with too little pressure causes the pull tab 100 to slide out, while too much pressure results in unstable movement of the slider when the slider body is deformed. to be. The last method shown in FIG. 9C is a complex pulltab connection structure, which is expensive to manufacture and the time-consuming procedure of assembling the pulltab on the slider is time consuming.

In view of the above difficulties of the prior art, the present invention provides an improved slider for a slide fastener that is simple in structure and easy to assemble with its associated pull tab.

A more special object of this design is to provide a slide fastener slider with structural features that allows the slider to be assembled with its pull tab with the easiest and increased positional stability, thus ensuring a long useful life.

According to this design, the pull tab of the slider is pivotally connected to the support protrusion on the slider body by a unique pivot. The pivot includes a tubular spring with a slit along the entire length of the tubular spring. The pull tab has a pair of axially aligned holes into which the tubular springs fit. In free form the diameter of the tubular spring is slightly larger than the diameter of the holes.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

First, in FIG. 1 a slider 10 for a slide fastener is shown, which has side flanges 14 on each of them, which are connected by a neck (not shown) at their front end, with a Y-shaped guide channel between them. It consists of a slider body 11 having upper and lower wings 12 and 13 forming 15 and passing a pair of fastener stringers there through. In addition, the slider body 11 extends outwardly from the upper blade 12 and supports the support protrusion 16 fixed to the wing and the pull tab connector 17 pivotally connected to the support protrusion 16 through the hole 18. Include. The pull-tab coupler 17 has ears 17e and 17f protruding from the longitudinal side bars 17a and 17b and the back bar 17d interconnected with the front and rear and side bars 17c and 17d at both ends thereof. The ears 17e and 17f each have a through hole 17e 'and an end closure hole 17f', respectively.

The substantially rectangular pull tab 19 has a through hole 21 and a tongue 20 suitable for being received between the ears 17e and 17f of the connector 17, the pull tab being manipulated to be well known in the art. The slider 10 is moved to open and close the slide fastener.

The tubular spring 22 may be formed as a cylindrical tube or roll from metal, plastic, natural or synthetic leather or other material, the diameter of which is freer than the diameter of the holes 17e ', 17f', 21. Slightly large, a longitudinal longitudinal slit 23 is provided over its length such that the tubular spring 22 is elastic. The tubular spring 22 is used to connect the pull tab 19 to the slider body 11 at any convenient time and place to make a complete slider product. The holes 17e ', 17f', 21 lining the tubular spring 22 with each other until the leading end of the tubular spring 22 is once placed in the closing hole 17f 'as shown in FIG. This is easily done by fitting through.

3 and 4 show a variation of the slider 10, which instead of the pull tab connector 17 has an elongated pull tab 24 with two forked longitudinal bars 24a and 24b. One of the bars has a through hole 24a ', and the other bar has a closing hole 24b' once. The tubular spring 22 is inserted through the hole 18 through the hole 24a 'and once received into the closing hole 24b' to connect the pull tab 24 to the slider body 11.

A pair of sliders 10 are shown used on a slide fastener indicated by an imaginary line in FIG. 5, in which the pull tabs 24 on one slider are laid on the other slider and the sliders are pulled head to head. This represents a typical form, for example applied to a two-way retractable bag. Padlock 25 is used to lock the sliders 10.

FIG. 6 is another variation in contrast to the slider 10 of the first and second degrees, in which the ears 17e and 17f are provided on the pull tab 19 and the tongue 20 on the pull tab connector 17. . The pull tab 19 of FIG. 6 has a pair of through holes 24a 'and 24b' instead of the through and end closure holes 17e 'and 17f' of FIG. 4 to accommodate the tubular spring 22. FIG. The pull tab 19 of FIG. 7 has through holes 26 instead of the through holes 21 of FIGS.

8 shows a modified tubular spring 22 with straight slits 23 instead of wavy shapes.

Alternatively, the outer surface of the tubular spring 22 may be tapered in part or along the entire length. Otherwise, the diameter of the tubular spring 22 may only be reduced in part by recessing the tube. In another form, the tubular spring 22 may be wound 1.5 times as the variable thickness gradually decreases from the central portion toward the opposite ends. Moreover, the tubular spring 22 may be in the form of a multilayer consisting of a plurality of tubular layers of different materials arranged in layers.

Claims (5)

(a) a slider body including upper and lower vanes 12 and 13 connected at one end to form a substantially Y-shaped guide channel 15 through which a pair of fastener stringers of the slide fastener F pass through; 11), (b) pull tabs for opening and closing the slider fastener F by pulling the support protrusions 16 and (c) the slider body 11 along the pair of fastener stringers disposed on the upper blade 12. (19, 24) And, (d) as a pivot (P) for pivotally connecting the pull tabs (19, 24) to the support projection (16), including a tubular spring (22) with a slit (23) over the entire length Slider 10 for a slide fastener (F) consisting of a pivot (P). The pull tab (19, 24) has a pair of axial line holes (17e ', 17f') (24a ', 24b') into which the tubular spring (22) is fitted, and is free form. And the diameter of the tubular spring (22) is slightly larger than the diameter of the holes (17e ', 17f') (24a ', 24b'). The slider according to claim 2, wherein the tubular spring (22) is a cylindrical tube or a roll of elastic material. The slider according to claim 1, wherein the slit (23) of the tubular spring (22) is wavy. 4. The slider according to claim 3, wherein the slit (23) of the tubular spring (22) is straight.