JPS5858003A - Slide fastener - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention relates to a slide fastener in which the articulator, slider, etc. are made of thermoplastic synthetic resin.
The purpose was to make the articulator and/or the slider made of thermoplastic synthetic resin to achieve a design effect that was so fashionable that it would not impair the beauty of the Slide 7 assner, but rather enhance it. In addition, we minimized the water absorption rate that cannot be avoided because the articulators and sliders are made of thermoplastic synthetic resin, and stabilized the shape and dimensions, allowing the zipper to open and close easily even when used in areas with a lot of moisture. Our goal is to provide slide fasteners that can be guaranteed.

As is well known, a slide fastener is made by attaching articulators at a predetermined pitch to one side edge of a woven fastener tape to form a fastener stringer, and connecting a pair of left and right fastener strings ff- to the opposing articulating threads. The rows interlock with each other to form a zipper chain. A slider is fitted across the interlocking row of articulators in the fastener chain, and an upper stop and a lower stop are attached continuously to the row of articulators, and the lower stop is connected to a butterfly pin. It is also possible to use a releasable insert consisting of a box body, which has the function of completely separating the left and right fastener stringers at the same time as opening the fastener chain. Stops, lower stops, etc. are made of L metal or synthetic resin. In particular, articulators and sliders made of synthetic resin are conventionally generally made from the viewpoints of strength, durability, chemical resistance, and moldability. It is molded from nylon 66, polycarbonate, or acetal thermoplastic synthetic resin. However, this type of synthetic resin has a relatively high shrinkage rate during molding and a high water absorption rate, and although the shrinkage rate is taken into consideration during molding, slight errors often occur when mating. If there is resistance or the chain is bent, it may be released due to lateral attraction, and if used in a hot place or in a place with a lot of moisture, the articulators etc. may become stiff and the slider's sliding resistance may be reduced. There was an import point where it became large.

This invention solves the above-mentioned difficulties, and moreover, although slide fasteners have a practical function, most of them are used for casual wear, so it is necessary to give sufficient consideration to their fashionability. Therefore, it not only solves the above-mentioned conventional problems, but also has an excellent design. That is, by molding the slider and/or the articulator from a thermoplastic synthetic resin mixed with metal foil, the articulator and/or the slider can be made of synthetic resin and can be used as a slide fastener with a large design effect. A feature of the present invention is that it does not impair the aesthetic appearance, but rather has a more beautiful aesthetic appearance by mixing metal foil pieces in addition to the synthetic resin.

Hereinafter, this invention will be specifically explained by examples.
The slide fastener (F) shown in Figure 1 consists of the articulator (2) attached to the fastener tape (1) (1)
--- (2) ---------, a slider (3) fitted across both articulator rows, an upper stop (4) and a lower stop (5) provided continuously on the articulator row. The articulator (2), the slider (3), and the upper and lower stops (4) (57 is injection molded from a transparent or transparent thermoplastic synthetic resin, and a slide fastener made of the synthetic resin. Each member of the member is mixed with a colored pigment and a metal foil piece (6).The metal foil piece (6) is suitably made of aluminum or its alloy, copper or its alloy, etc. 6) is a foil that is widely rolled and cut into small pieces, and unlike powder, it has the required width and length, for example, 0.012% thick. Width and length are 0.2 x 0.2B or Fi, 0.I x O, 1
Approximately 4XI is preferable. This size does not impede the flow of the M melt resin when injecting or extruding the thermoplastic synthetic resin, the Young's modulus of the molded resin can be increased, and it is also excellent in terms of design. It satisfies each condition of what can be done.

The slide fastener (F) shown in Figure 2 is 111
The configuration is the same as that shown in Figure 1, but the articulator (2)
-----------(2)--- Only -------- is molded from a thermoplastic synthetic resin mixed with pigment and metal foil pieces (6). Therefore, the slider (31) and the upper and lower stoppers (45 (55) of this slide fastener (6) may be made of metal with a painted or plated surface.

Further, the above-mentioned pigment is necessary for the purpose of coloring a transparent or translucent synthetic resin, and is not necessary when the synthetic resin is opaque or if a non-colored one is sufficient.

Furthermore, when the lower stopper (5) is made into a releasable fitting that can completely separate the left and right fastener stringers, it is possible to use a thermoplastic composite with metal foil pieces mixed in as with the articulator (2). Preferably, it is made of resin.

As mentioned above, in this invention, the slider and/or the articulator are molded from thermoplastic synthetic resin mixed with metal foil pieces, and unlike powder, the metal foil pieces have a predetermined width and length. Because it is made of synthetic resin, it has higher impact resistance and toughness, unlike a member made solely of synthetic resin. In particular, the articulators of slide fasteners are designed to be cool when engaging and opening, but they exhibit enough toughness to withstand such external forces, making them suitable for use under adverse conditions. A reliable meshing function can always be maintained without being easily damaged.

In addition, since the shrinkage rate of the component during molding is smaller than that of synthetic resin alone due to the inclusion of metal foil pieces, molding dimensions can be obtained accurately.Moreover, the water absorption rate is reduced, so it is possible to By the way, even when used, the degree of swelling of the articulator or slider is extremely small and it maintains almost the same dimensions as when molded, so the resistance to engagement and opening of the articulator does not increase noticeably, and the articulator can be opened and closed smoothly at all times. At the same time, the rate of wear is reduced because no unreasonable meshing action occurs.

In addition, the mixed metal foil pieces can further enhance the design aesthetic than synthetic resin alone, and even if the thermoplastic synthetic resin material is opaque, it can be decorated with foil pieces scattered on the surface. In particular, when the foil is transparent or translucent, the reflection from the foil pieces creates a different sense of design.

[Brief explanation of drawings]

FIG. 1 is a front view showing a slide fastener according to the present invention, FIG. 2 is a front view showing a similar example, and FIG. 3 is a partially enlarged sectional view of an articulator. ('F)0'...Slide fastener% (1)...Zipper tape, (2)...Articulator, (3)...Slider, (4)...Upper dowel, (5)...Lower stop Ingredients, (6)...
Metal foil piece Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1) In a slide fastener including an articulator, upper and lower retainers, a slider, etc., at least either the slider, the articulator, or the retainer is molded from thermoplastic synthetic resin mixed with metal foil pieces. A slide fastener featuring 2) The slide fastener according to claim 1, wherein the thermoplastic synthetic resin is made of transparent or translucent material and colored with a coloring pigment. 3) The slide fastener according to claim 1 or 2, wherein the metal foil piece is made of unnaturally colored aluminum or aluminum alloy foil.