JPS63234907A - Slider for 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] <Industrial Application Field> The present invention relates to a slider for slide fasteners with a new structure, which was developed to enable smooth opening and closing operations when used not only for straight fasteners but also for curved fasteners. be.

<Prior Art> The structure of a slider conventionally used in a slide fastener is usually shown in FIGS. 6 to 8.

6 to 8 are views showing an example of a conventional slider for a slide fastener, in which FIG. 6 is a plan view, FIG. 7 is a plan view of the upper wing with the upper wing removed, and FIG. 8 is a plan view of the upper wing with the upper wing removed. The figure is a rear view.

The main body (11) has an integrated structure in which an upper wing piece (12) and an upper wing piece (13) are vertically connected by a guide post (15) at the tip. And the upper wing piece (12) and the upper wing piece (13)
Outer flanges (14) (14) are provided on both sides of the flange to face each other vertically. This outer flange (14) (
14) is a bent part (16) that opens outward at the front;
Behind this bent part (16) are the flanges (14) on both sides.
(14) are straight portions (17) (17) parallel to the center line of the main body (11) in the forward and backward directions. There is a handle attachment part (18) in the middle part of the upper wing piece (12) near the front.
A handle (19) is attached to this.

<Problems to be solved by the invention> The reason why the conventional product has a structure in which the rear side of the outer flange (14) is simply made straight is because conventional fasteners are usually used in a straight shape. If the fastener is straight like this, unless a special twisting force is applied when the slider moves backward, the straight part (17) of the flange (14) (17) will not engage the fastener. This is because since it did not hit the child, it did not impair the smoothness of backward movement. but.

As various products such as clothing, bags, bags, sheets, etc. have diversified in recent years, the importance of curved zippers has become enormous. The method of manufacturing this curved fastener was first developed by the present inventor in Japanese Patent Application Laid-Open No.
This is proposed in No. 191307.

When using a fastener that moves forward, the front part of the outer flange (14) of the slider (14) becomes a bending part (16) (16), so when it moves forward, it hits the occlusal of the fastener and hinders its progress. However, when moving backwards, the problem arises that the rear end of the straight part (17) on the inside of the fastener bending direction of the outer flange (14) hits the articulator and does not move smoothly. It is coming.

Means for Solving the Problems> Therefore, in order to solve the above problems, the inventors of the present invention conducted various studies, and as a result, developed the slider for slide fasteners of the present invention.

The slider for a slide fastener of the present invention forms a side flange (4) of the upper wing piece (2) or the upper wing piece (3) of the slider body (1), and the upper wing piece (2) and the upper wing piece (3) ) are facing each other, and the front and rear parts of the flange (4) are bent so as to open outward with respect to the center line of the slider body (1) in the advance/retreat direction. Features. That is, the flange (
The front and back of 4) are opened outward, and the middle part is a narrow part corresponding to the width of the occlusion of the left and right fasteners, making it a so-called hyperbolic shape. In addition, when the slider for slide fasteners of the present invention is used for a circular curved fastener that always curves in one direction, only one of the two flanges on the inside radius of curvature is bent in the front and back in this way. Also, if the bending fastener bends in either the left or right direction, both flanges (4), (4)
) are provided so as to open outward as described above. Therefore, the present invention is not limited to opening all of the flanges with respect to the center in the advancing/retracting direction.

<Function> As mentioned above, the flange (4) of the slider body (1) (
4) is bent so that the front and rear parts thereof are opened outward with respect to the center line of the main body (1) in the advancing and retreating direction.

Whether it is a straight fastener or a single curve fastener, the rear end of the flange (4) (4) does not touch the occlusal of the fastener, allowing for smooth opening and closing operations, not only when moving forward but also when moving backward. The effect that can be obtained is obtained.

<Example> Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing an example of a slider for a slide fastener according to the present invention. FIG. 2 is a plan view of the upper wing with the upper wing removed, and FIG. 3 is a bottom view corresponding to FIG. 2 showing another example of the shape. FIG. 4 is a sectional view taken along line AA in FIG. FIG. 5 is a plan view showing an example of the shape of a fastener that can enjoy the effects of the product of the present invention.

In the illustrated example of the slider for a slide fastener of the present invention, the slider body (1) has an upper wing piece (2) and an upper wing piece (
3) are vertically connected by a guide column (5) at the tip and are integrated. The cross-sectional shape of this guide column (5) is approximately lance-shaped at the tip, as shown in Figures 2 and 3.
The upper wing pieces (2) and the upper wing pieces (3) are chamfered so as to narrow inward from the outer contours, so that the slider can be guided without being caught by the fastener's articulator. There is a handle attachment part (
8) and a handle (9) attached thereto, which is a conventionally known structure, and has the following configuration. That is, the configuration is such that flanges (4) are formed on both sides of the upper wing piece (2) and the upper wing piece (3) of the slider body (1), and the flange (4) of the upper wing piece (2) is formed on both sides of the upper wing piece (2) and the upper wing piece (3) of the slider body (1). ) (4) and the flange (4) (4) of the upper wing piece (3) are opposed to each other.
) are bent in a hyperbolic shape with the front and rear parts of the slider body (1) opened outward relative to the center line of the slider body (1) in the advancing and retreating direction. It was shown to. Although FIG. 2 shows the shape of the upper wing, the planar shape of the upper wing is also the same as that of the upper wing.

In this example, the outer flanges (4) (4) are along the respective side edges of the upper wing piece (2) and the upper wing piece (3),
The left and right flanges (4) (4) are curved in a substantially circular arc shape toward the center line of the slider body (1) in the advancing and retreating direction.

That is, the front and rear portions of the flanges (4) (4) are each opened outward with respect to the center line in the direction of movement of the main body (1), forming a substantially hyperbolic shape.

Even if the shape of the flange (4) (4) is not approximately arc-shaped and hyperbolic as in the above example, as shown in Fig. 3,
The bent part (6) with the flange (4) opened outward at the front part.
a), a straight part (7) in the middle parallel to the center line in the advancing/retreating direction of the main body (1), and a bending part (6b) at the rear that is open outward.

Here, the attachment structure of the pull attachment part (8) to the slider body (1) in the example shown in FIGS. 1 and 2 will be explained using FIG. 4.

At the rear of the handle attachment part (8) there is an insertion piece (21) that protrudes downward.
) is provided, and this insertion piece (21) is inserted into the main body (1).
The handle attachment part (8) is fixed to the main body (1) by being inserted into the insertion hole (20) drilled in the guide post (5).

A recess (22) is provided in the vertically intermediate portion of the insertion hole (20). The upper insertion hole (
20) The wall surface has a tapered shape that widens slightly upward, and a two-shaped stop pin made of spring material is inserted into the pin hole (23) at the bottom of the insertion piece (21) of the handle attachment part (8). (24)
When one end is fitted and the other end is pushed into the insertion hole (20) with it protruding from the insertion piece (21), the tapered wall surface will have a
The part of the locking pin (24) that protrudes from the insertion piece (21) is
The stop pin is pushed toward the retraction allowance (25) provided on the insertion piece (21) and passes through the upper narrow part of the recess (22). As the stop pin (24) is made of a spring material, when passing through this narrow part, the protrusion at the tip of the stop pin (24) fits into the recess (22) as shown in the figure due to the restoring force, and the pull attachment part (8)
) is locked to the main body (1).

In this way, the slider body (1) and the handle attachment part (8) are fitted into each other.
Since the materials can be changed, they can be made in different colors, making it possible to respond to the diversification of colorful products.

Since the slider for slide fasteners of the present invention has such a structure, it can be used for circular fasteners (
10), the front and rear ends of the flange do not come into contact with the fastener's articulator (30), and can be smoothly guided both forward and backward.

In the case of a plastic coil fastener, a completely flat type with no flange formed on the upper wing piece is used, but in this case as well, the same effect can be obtained by changing the shape of the flange of the upper wing piece.

<Effects of the Invention> As detailed above, the slider for slide fasteners of the present invention allows not only the conventional straight-moving fasteners but also smooth backward movement when used for curved or meandering fasteners. , allowing for smooth opening and closing operations. In addition, this prevents damage and wear caused by friction between the fastener articulator and the slider flange, improving the durability of the fastener.

Damage to the fastener attachment area was also reduced, the durability of the product itself was improved, and economical effects were also achieved.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a slider for a slide fastener according to the present invention. FIG. 2 is a plan view of the upper wing with the upper wing removed, and FIG. 3 is a perspective view equivalent to FIG. 2 showing another example of the shape. FIG. 4 is a sectional view taken along line AA in FIG. FIG. 5 is a plan view showing an example of the shape of a fastener that can enjoy the effects of the product of the present invention. 6 to 8 are views showing an example of a conventional slider for a slide fastener, in which FIG. 6 is a plan view, FIG. 7 is a plan view of the upper wing with the upper wing removed, and FIG. 8 is a plan view of the upper wing with the upper wing removed. The figure is a rear view. (1) Slider body (2) Upper wing piece (3) Upper wing piece
(4) Flange (5) Guide pillar

Claims (1)

[Claims] 1 Upper wing piece (2) or lower wing piece (
Flanges (4) (4) are formed on the sides of the upper wing piece (3).
2) and a lower wing piece (3) facing each other, the front and rear parts of the flange (4) are opened outward with respect to the center line of the slider body (1) in the advancing and retreating direction. A slider for slide fasteners that is characterized by being bent in a bent state.