KR820002548Y1 - Slider for slide fastener - Google Patents

Abstract

No content.

Description

Slider for fastener

1 is a plan view showing a schematic configuration of a slider according to the present invention.

2 to 5 show the first embodiment,

2 is a perspective view of a metal core.

3 is a cross-sectional view taken along the line I-I of FIG. 1 showing the buried state of the core material.

4 is a cross-sectional view taken along the line II-II of FIG. 3 showing the cross-sectional shape of the main part and the buried state of the equivalent of the part.

FIG. 5 is a cross-sectional view taken along the line III-III of FIG. 1 showing the buried state of upper and lower portions equivalent parts. FIG.

6 to 9 show a second embodiment,

6 is a perspective view of a metal core.

7 is a cross-sectional view showing the buried state of the core material.

8 is a sectional view taken along the line IV-IV in FIG.

9 is a cross-sectional view showing a buried state of a substantial portion of the upper and lower portions.

10-13 show a third embodiment,

10 is a perspective view of the core material.

11 is a cross-sectional view showing the buried state of the core material.

12 is a sectional view taken along the line V-V in FIG.

13 is a cross-sectional view showing the buried state of the upper and lower equivalent portions.

14 is a perspective view of the core in the fourth embodiment.

The present invention relates to a relatively large fastener slider used as a diffusion or other industrial materials.

Fasteners used for spreading, fishing nets, etc. are used with large elements because of the large load applied thereto. On the other hand, in recent years, fasteners made of synthetic resins have been widely used for reasons of good productivity and low production cost. By the way, with the enlargement of an element, the shape of a slider also becomes large naturally. However, the strength of synthetic resin materials generally does not match that of metals.

Therefore, since the large fastener is used where the load is applied, deformation occurs such as widening between the upper and lower sides of the slider with prolonged use, and bites of the fastener tape and the adherend occur. In addition, when the deterioration of activity was remarkable, a flow occurred and defects between elements were removed.

This invention aims at the improvement of intensity | strength using a metal core material. The main feature of the present invention lies in that the same core material is embedded at least in the upper and lower parts of the slider over the entire surface, and the core material integrated by the house part is embedded in the slider.

Hereinafter, described in more detail according to an embodiment of the present invention as follows. First, the basic configuration of the slider will be described. In each figure, (1) and (2) are upper and lower parts facing each other with a gap through which fastener elements can pass, (3) are main parts provided at the tip end of the upper and lower pieces (1) and (2), and The handle 5 rotatably supported by the part 1 is the handle support body. Next, each Example is described in detail.

First Embodiment (FIGS. 2 through 5)

In this embodiment, the metal core material 7A is embedded in the slider 6A. As shown in FIG. 2, the metal core material 7 has a shape substantially the same as that of the slider 6, and the upper and lower piece equivalent parts 8A and 9A corresponding to the upper and lower pieces 1 and 2 are formed. It is provided and connected by the main part equivalency part 10A, and is integrated by press molding etc. A plurality of holes 11 are formed in the upper and lower portions equivalent portions 8A and 9A to allow the synthetic resin (to be described later) to reach the right side and to increase the adhesion.

The core 7 is disposed in a mold, and the synthetic resin is filled with high pressure in the mold. Here, the core material 7A is almost completely embedded in the synthetic resin 12, as shown in FIG. 3, and the magnetic portion equivalent portion 10A is located approximately at the center of the house portion 3 (FIG. 4), The side ends of the equivalent portions 8A and 9A are equally extended to the proximal positions of the guide edge portions 13 provided at the side ends of the upper and lower pieces 1 and 2 (FIG. 5). Reference numeral 14 in the figure denotes recesses generated by the space portion provided in the mold. In this way, the strength of the slider 6A is improved by embedding the core material 7A having the same shape in the slider 6A made of synthetic resin. In addition, since the strength of the upper and lower pieces 1 and 2, which are easily subjected to stress, becomes large, it is effective for large fasteners.

Second Embodiment (FIGS. 6-9)

In this embodiment, the metal core 7B is molded as die casting. In addition, the shape of the core material 7B is substantially the same as the slider 6B similarly to 1st Embodiment, but the main part equivalent part 10B is formed thick (FIG. 6).

The core 7B is embedded in the synthetic resin 12 so as to be exposed to the inner surface of the slider 6B (FIGS. 7 to 9). Thus, the metal core 7B is exposed to the inner surface of the slider 6B. Therefore, wear due to friction with the element can be prevented.

Third Embodiment (FIGS. 10-13)

In this embodiment, the metal core 7C is molded in the die casting as in the core 7B in the second embodiment. As in the first and second embodiments, the shape is substantially the same as that of the slider 6C, but the upper end portion 10C of the main portion is thickly formed, and the guide edge is formed at the side ends of the upper and lower portion equivalent portions 8C and 9C. 13 C of edge parts are provided so that the part 13 may be covered (FIG. 10).

The above core material 7C is embedded in the synthetic resin 12 so as to be exposed to the outer surface of the slider 6C, and the housewife equivalent portion 10C is completely embedded in the housewife 3. In addition, although the core material 7C with the edge portion of this embodiment is described as being expressed on the outer surface of the slider 6C, the core material 7C may be inverted on the inner surface or embedded inside.

Fourth Embodiment (Fig. 14)

In this embodiment, the metal core material 7D is the same as the above-described embodiment, but only this core material 7D is a tip portion (household equivalent portion) of the upper portion equivalent portion 8D on the upper portion equivalent portion 8D. 10D)], the support part equivalent part 5D is previously integrally molded over the rear end part. As the support portion equivalent portion 5C is integrally molded in this manner, the portions to which the force is applied are all integrated so that the strength is improved.

In addition, in the above-described first to fourth embodiments, it is described that a space portion is provided between the mold and the core material to secure the gap between the mold layer and the core material during molding, but this space portion is provided only on the inner surface of the mold. It may be installed on the surface of the core.

As described above, according to the present invention, the strength of the slider can be remarkably improved by embedding the metal core material substantially equally in succession to the slider corners of the synthetic resin slider. Moreover, since it is not a local reinforcement, it does not cause a change such as widening of the upper and lower pieces without stress concentration, so that the fastener perturbation is good and the service life is long without the bite of the fastener tape and the adherend.

Claims (1)

In the slider 6 made of synthetic resin which consists of the main part 3 and the pair of upper and lower piece parts 1 and 2 which were integrated across this main part 3, the said main part 3 and the upper and lower part 1 (2) is embedded in the slider (6) with a metal core (7) having a top and bottom portion equivalent portion (8) (9), which are integrated over the top of the top and bottom pieces (1) and (2) at least approximately equally. Fastener slider characterized in that the.