JP3238592U - button - Google Patents

Abstract

[PROBLEMS] To provide a button which can solve the problem of thread breakage, can be firmly attached to clothes, is hard to break and is hard to come off, and is easy to fasten and easy to remove. A button 5 made of plastic includes a button body 1a positioned with a sheet-like body 7 interposed therebetween and a crimped seat portion 6, which are integrated, and a gap is formed between the sheet-like body and the button body. In order to form a , a slope portion 4 tapered in longitudinal section is provided on the back side of the button body. [Selection drawing] Fig. 2

Description

This idea relates to buttons.

Commonly used buttons are made from a variety of raw materials, including synthetic resin, shellfish, and wood.

Basically, it has four holes and is sewn on clothes with thread.

However, since the buttons are attached with threads, the problem of thread breakage often occurs, and troubles such as the buttons coming off the fabric of the clothes frequently occur when washed.

Also, since there is a hole, it is often broken, including those made of synthetic resin.

This invention was made in consideration of the above-mentioned matters, and its object is to provide a button that can solve the problem of thread breakage, can be firmly attached to clothes, is hard to crack, and is hard to come off. In addition, to provide a button that is easy to stop and easy to remove.

In order to achieve the above object, the button of this invention is a button made of plastic, and is formed by integrating a button body positioned with a sheet-like body sandwiched therebetween and a crimped seat portion (claim 1).

Further, in this device, it is preferable to provide a slope portion tapered in longitudinal section on the back side of the button main body in order to form a gap between the sheet-like body and the button main body (claim 2).

Furthermore, in this device, it is preferable to provide a columnar portion on the back side of the button main body in order to form a gap between the sheet-like body and the button main body (Claim 3).

According to this device, when the button is attached to the sheet-like body, sewing is replaced by crimping, and no thread is used, so that the button is free from thread breakage and is hard to come off.

In addition, since this invention does not require a hole for sewing with thread, it is possible to provide a button that can be firmly attached to clothes and is hard to crack.

In addition, in this device, only the button body can be seen instead of the button hole for sewing the thread, so it is possible to provide a button with a high visual design.

Furthermore, in this device, a gap is formed between the sheet-like body and the button body. That is, in this device, a gap is formed between the clothing and the button body, for example, so that it is possible to provide a button that is easy to fasten and easy to remove.

It is a top view which shows the button based on one Embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1; It is a side view which shows the button main body before crimping stop in the said embodiment. 4 is a cross-sectional view taken along the line BB in FIG. 3; FIG.

An embodiment of this invention will be described below.

1 and 2, a male button body 1a and a female crimped seat 6 sandwiching a sheet-like body (for example, a part of clothing) 7 are integrated, and the sheet-like body 7 and the button are integrated. An embodiment of this invention is shown in which a slope portion 4 tapered in longitudinal section is provided on the back surface m side of the button main body in order to form a gap S between it and the main body 1a.

3 and 4 respectively show the button body 1 and its vertical cross section before being deformed to expand its diameter by being hit with a crimping punch attached to the driving tool.

3 and 4 show the button body 1 before being deformed to expand its diameter.

That is, the button body 1 before being deformed to expand its diameter includes a substantially disk-shaped base 2, a protrusion 3 hanging down with a predetermined length on the center axis of the base 2, the base 2 and the protrusion 3. It is composed of a substantially inverted truncated conical inclined surface portion 4 that is continuously provided therebetween.

The surface (peripheral surface) m of the slope portion 4 has a curved shape that forms a part of a spherical surface as a whole, while the slope portion 4 is formed in a tapered shape that tapers toward the center as it goes downward. As a result, the surface (outer peripheral surface) of the sloped portion 4 is positioned between the fabric (sheet-like member) 7 (see FIG. 2) such as clothing and the sloped portion 4 of the button body 1 when the button 5 is fastened or removed. A gap S is formed to the extent that m can be touched with a finger.

In FIGS. 1 and 2, 5 is a button of this embodiment attached to a sheet-like body 7 (for example, cloth such as clothes) by means not using thread. The button 5 is injection molded using a highly heat-resistant plastic such as polyacetal, nylon, polyester (mixture of unsaturated alkyd and vinyl monomer), polyamide resin, or the like. Reference numeral 6 denotes a crimped seat portion, which has a through hole 6a into which the projection portion 3 can be fitted. Reference numeral 1a denotes a button body formed by striking the tip of the projection 3 with a caulking punch (not shown) mounted on a driving tool to expand and deform the diameter thereof. It consists of a protrusion 3a deformed to have an enlarged diameter, and a substantially inverted truncated conical slope 4 continuously provided between the base 2 and the protrusion 3a.

In this embodiment, the slope portion 4 has a substantially inverted truncated cone shape, and the surface (outer peripheral surface) m of this substantially inverted truncated cone shape is formed into a curved surface that forms part of a spherical surface as a whole. An inverted truncated cone shape in which the surface of the portion is tapered linearly may be used, and a cylindrical portion having a size that allows the gap S to be formed may be provided on the back side of the button body.

Therefore, in order to attach the button 5 by means of this invention that does not use thread, first, a cloth (sheet-like member) 7 such as clothes is placed between the button body 1 and the crimped seat portion 6 .

Subsequently, the projecting portion 3 of the button body 1 is pierced into the cloth 7, the projecting portion 3 is inserted into the through hole 6a of the crimping seat portion 6, and the tip of the projecting portion 3 is hit by a crimping punch equipped with a driving tool. The button 5 can be obtained by crimping the button main body 1a and the crimping seat portion 6 by expanding and deforming them.

1a Button body 4 Tapered slope 5 Plastic button 6 Crimped seat 7 Sheet-like body S Gap m Back side of button body

Claims (3)

The button is made of plastic and is formed by integrating a button body positioned with a sheet-like body sandwiched therebetween and a crimped seat part. 2. A button according to claim 1, wherein a slope portion tapered in longitudinal section is provided on the back side of the button body to form a gap between the sheet-like body and the button body. 2. The button according to claim 1, wherein a cylindrical portion is provided on the back side of the button body to form a gap between the sheet-like body and the button body.

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