JPH0612643Y2 - Double shell button - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a button member, and more particularly to a surface plate or shell member of the button member.

[Description of Prior Art]

Conventionally, for example, a swing button or a tuck button is generally used as a fastener for jeans or the like. First
A cross-sectional view of such a typical button member 10 is shown in the figure. The button member 10 is a surface plate or shell 12 that can be decorated, a filler 14 inserted inside the shell, and is fixed to the shell along a peripheral portion thereof, and extends downward as a tubular portion 16 and then upwards. It is composed of a back member 22 formed by forming an inner cylinder 20 that is bent inward to form a central hole 18.

Recently, many shells having protruding portions for decoration have been used as tongues due to the diversification of fashion. However, when a shell having such a shape is attached to the button member by using a filler 14 (see FIG. 1) having a conventional flat shape, that is, a shape which does not match the protruding shape portion of the shell, the addition to the attachment member 26 is performed. During the tightening operation, the filler itself is deformed toward the inner space of the projecting shape portion as shown in FIG.
The surface of the above is damaged by the pressing force of the upper die 30. Further, after the caulking work is completed, the deformed filler is restored to its original shape to some extent, whereby looseness occurs in the portion between the shell and the peripheral portion of the back side member, which causes rattling or shelling of the shell. Comes to rotate.

Therefore, a filler 15 having a shape matching the protruding shape portion of the shell as illustrated in FIG. 3 or FIG. 4 was produced and used with such a button member having the protruding shape portion for decoration.

However, as described above, in order to manufacture the filler that matches the projecting shape portion of the shell, a complicated mold is required, and an extra step is also required. On the other hand, it can be considered to simply increase the wall thickness of the plate-like filler shown in FIG. 1, but the increase in the wall thickness of the filler, which is usually about 1 mm, increases the types of fillers and makes it difficult to handle them. Become.

[Purpose of device]

Therefore, an object of the present invention is to prevent deformation and damage during the caulking work of the shell having the protruding shape portion.

Another object of the present invention is to use a flat-shaped filler,
It is to provide a button member having a shell with a protruding shaped portion.

[Outline of the device and its effect]

According to the present invention, a first shell member having a projecting shape portion, a back side member coupled to the first shell member along a peripheral portion, and between the first shell member and the back side member. A button member formed of a filler inserted into the second shell member, the second shell member enclosing the peripheral portion of the back member between the filler and the first shell member and covering the filler. A double shell button is provided, characterized in that Due to the second shell member, the deformation of the filler during the caulking operation of the button member is considerably reduced, so that the first or decorative surface plate is not scratched and rattling or rotating with the back member. Occurrence is prevented. Further, since the flat-shaped filler that has been used conventionally can be used, the complexity and diversification of the filler shape and the accompanying difficulty of handling are eliminated.

[Explanation of Examples]

Hereinafter, the double shell button of the present invention will be described in detail with reference to the drawings.

FIG. 5 shows a cross section of a double shell button 32 according to the present invention. The double shell button 32 of the present invention has a first shell member 34 positioned on the most front side and having a projecting shape portion for decoration, and a flat second shell member 36 interposed therein. And preferably a peripheral edge 3 fixed along the peripheral portion of the second shell member 36.
7, a tubular portion 38 extending downward, and then inwardly bent upward to form an inner cylinder 42 forming a central hole 40, the second shell member 36, and the second shell member 36. It is composed of a flat filler 46 which is inserted between the back side member 44 and the back side member 44.

When the double shell button 32 of the present invention having the above-described structure is attached to the cloth, first, as shown in FIG. 6, the attachment member 48 penetrates the cloth 50 and is inserted into the central hole 40 of the tubular portion 38, and the filler is inserted. It is abutted on the lower side of 46. Next, by the subsequent caulking work, the tip portion 5 of the attachment member 48 is
2 bulges inside the tubular portion 38 as shown. At this time, the pressing force from the upper die (not shown) applied to the surface and the peripheral portion of the first shell member 34 is transmitted to the surface and the peripheral portion of the lower second shell member, As described above, the second shell member 36 is formed in a shape in which the peripheral portion is wrapped along the peripheral portion of the back side member, whereby the surface portion is in a tensioned state, so that the second shell member 36 is in a more tensioned state. The attachment member 48 comes into contact with the filler 46, so that the attachment member 48 abuts on the lower side of the filler.
The deformation of the filler 46 due to the pressure from the bottom applied by the above and the resulting damage to the first shell member are effectively prevented.

Although the present invention has been described above with reference to specific examples, it should be noted that many modifications can be made within the present invention.

[Brief description of drawings]

FIG. 1 is a sectional view of a conventional button with a shell. FIG. 2 is a cross-sectional view illustrating an attachment state of a button with a shell having a projecting shape portion for decoration to the cloth and a deformed state of the filler and the shell portion accordingly. FIG. 3 is a cross-sectional view of a conventional button with a shell that uses a filler having a shape that matches a protruding shape portion for decoration. FIG. 4 is a cross-sectional view of a conventional button with a shell that uses a filler having a shape that matches a protruding shape portion of another shape. FIG. 5 is a sectional view of a double shell button according to the present invention. FIG. 6 is a cross-sectional view illustrating the attachment state of the double shell button of FIG. 5 to the cloth. The names of the main parts in the figure are as follows. 34; First shell member 36; Second shell member 46; Filler 48; Mounting member

Continuation of the front page (56) References Practical application Microfilm (JP, U) Practical application of the specification and drawings attached to the application for Sho 59-149216 (Sai 61-63910) A microfilm (JP, U) of the details and drawings attached to the application for Sho 59-193 (Actual Development Sho 60-112907)

Claims (3)

[Scope of utility model registration request] 1. A first shell member (34), a back side member (44) joined to the back side of the first shell member and along a peripheral portion thereof, the first shell member and the back side member. A button member including a filler (46) interposed between the filler and a second portion for hugging a peripheral portion of the back member and covering the filler between the filler and the first shell member. A double shell button having a shell member (36) inserted therein. 2. The double shell button according to claim 1, wherein the first shell member has a projecting shape portion for decoration. 3. The double shell button according to claim 1, wherein the second shell member has a flat shape.