JP6090932B2 - Synthetic resin buttons for jeans - Google Patents

Description

The present invention relates to a button used for jeans (denim cloth), and more particularly, to a button composed of a button body and a rivet for attaching the button body to the cloth from the opposite side of the button body across the jeans cloth. Is.

As a button for this type of jeans, as shown in FIG. 7, a button body 1 and a rivet 2 are used.
A metal button made by pressing (drawing) a metal plate has been known for a long time. In this metal button, the head of the button body 1 (a disc-shaped part at the upper end of the button body that is engaged with the edge of the button hole formed on jeans) 4 and the shaft (the part that is inserted through the button hole) Since 5 is produced by pressing a metal plate, it is necessary to ensure the thickness T of the head 4 and at the same time not damage the clothes and the human body with the edge of the metal plate used as a material. Therefore, as shown in the figure, the head 4 of the button body 1 is connected to the upper end of the outer cylindrical portion of the shaft portion 5 having a cylindrical shape of the inner and outer double structure, and the opening wound around and fixed to the outer periphery thereof. It was formed in a hollow shape with a disk-shaped decorative board (button cover part) 13 having 3a. Therefore, the number of component parts and manufacturing man-hours of the button main body 1 are increased, the manufacturing efficiency is poor, and the cost is high.

In addition, in order to apply a concavo-convex pattern on the surface of the head 4 of the button body 1, it is necessary to manufacture a decorative plate by secondary processing of a metal plate that has been press-processed in advance. In addition, when manufacturing the button body 1 of a different color, it is necessary to perform color coating after applying rust-preventing plating, which significantly increases man-hours and is disadvantageous in terms of cost.

The button body 1 shown in the figure is formed with the tip of the protrusion 8 at the center of the decorative plate 13 in a state where the protrusion 8 of the rivet 2 pierced into the fabric B of jeans is inserted into the inner cylindrical portion of the shaft portion 5. Open aperture 3
It is attached to the fabric B by striking with a hammer (not shown) of a button attachment machine inserted into a and deforming the diameter.

FIG. 8 shows another conventional example. In the button for jeans, the button body 1 has a metal flanged shaft portion 5 in which a synthetic resin guide member 14 having a cylindrical shape is housed, and a protrusion 8 of a rivet 2 pierced into a fabric B of jeans. And a metal plate without a hole 13 (button cover) 13 containing a hammer metal block 15 for pushing and bending the tip of the rim, and a protrusion 8 of the rivet 2 pierced into the jeans fabric B. Guide member 14 of the shaft portion of the button body 1
In a state where the rivet 2 and the button body 1 are pressed in the axial direction with each other,
The metal block 15 in the decorative board 13 is characterized in that the button body 1 is attached to the fabric B by pushing and bending the tip of the protrusion. Also in this conventional example, the number of component parts and manufacturing man-hours of the button body 1 are large, the manufacturing efficiency is low, and the cost is high.

FIG. 9 shows another conventional example. As described in Patent Document 1, the button for jeans has a flanged shaft portion 5 made of a synthetic resin having a cylindrical shape with a flange 16 formed at the upper end, and no metal hole covering the flange 16. Button body 1 composed of a decorative panel (button cover) 13 and a metal tack 20 for attaching the button body 1 to the fabric B from the opposite side of the button body 1 across the jeans fabric B. . Protrusion 2 of metal tack 20
Reference numeral 1 denotes a shape in which a locking step portion 22 is formed on the lower side of a sharp pointed portion, and a protrusion 21 pierced through the fabric B is formed on the synthetic resin shaft portion 5. By press-fitting into the attachment hole 23, the stepped portion 22 is engaged with the inner surface of the attachment hole 23, and the button body 1 is fixed to the fabric B.

In this button for jeans, a flange 1 made of synthetic resin is used for manufacturing the button body 1.
Two members, the shaft part 5 with 6 and the metal decorative board (button cover part) 13, are required, the number of components and the number of manufacturing steps are large, the manufacturing efficiency is low, and the cost is high. Further, in this conventional example, when the protrusion 21 of the metal tack 20 is press-fitted into the mounting hole 23, the shaft portion 5 is expanded by the protrusion 21,
Not only is there a risk of breakage, but the decorative board 13 is easy to rotate around the axis with respect to the flange 16 of the shaft portion 5. Rotated irregularly, the direction of the concavo-convex pattern changed for each button, and the appearance of the jeans was impaired.

FIG. 10 shows another conventional example. As described in Patent Document 2, this button for jeans includes a button body 1, a shaft portion 5 with a synthetic resin flange 16, and a metal shell member 17 that covers the outer peripheral surface of the shaft portion and the lower surface of the flange 16. And a decorative plate (button cover) 13 without a metal hole covering the upper surface of the flange 16, and the protrusion 21 of the metal tack 20 is attached to the mounting hole 2.
3 is characterized in that the outer peripheral surface of the shaft portion 5 bites into the lower edge portion of the metal shell member 17 and stops as the shaft portion 5 is pushed and spread by the projection 21. .

According to this conventional example, there is an effect on the aesthetic inconvenience due to the rotation of the shaft portion and the breakage of the shaft portion in the conventional example of FIG. 9, but the button body 1 is made of the synthetic resin flanged shaft portion 5 and 9 comprises a metal shell member 17 covering the outer peripheral surface of the shaft portion and the lower surface of the flange, and a decorative plate (button cover portion) 13 having no metal holes covering the upper surface of the flange. However, the number of components and the number of manufacturing steps are large, and the cost is high.

In addition, as a problem common to the conventional examples shown in FIGS. 7 to 10, all of the metal used for the button body, rivet, tack, etc., detects the broken needle mixed in the jeans. It can be mentioned that the safety of goods cannot be ensured by passing jeans through the meter reading machine.

JP 2001-178505 A JP 2004-65292 A

The present invention intends to solve all the above-mentioned problems in conventional buttons for jeans.

In order to achieve the above object, technical measures taken by the present invention are as follows. That is,
The invention according to claim 1 is composed of a synthetic resin button main body and a synthetic resin rivet for attaching the button main body to the cloth from the opposite side of the button main body across the jeans cloth, Consists of a head having a circular opening in the center and a shaft portion continuously provided in a cylindrical shape on the back surface of the head and having a mounting hole of the same diameter connected to the opening. The through hole having a smaller diameter than the mounting hole is formed concentrically, and the rivet has a sharp point for caulking in which a head and a tip end side of a cylindrical shaft portion protruding from the center of the back surface thereof are tapered. The projection of the rivet, which is formed of a projection and pierced into the jeans fabric, is inserted into the mounting hole of the shaft portion of the button body, and the tip of the projection protruding above the through hole of the bottom plate portion is pushed by striking. Crush and expand And by, by caulking to the annular step portion which is formed between the mounting hole and the through hole, there is provided a synthetic resin button for jeans to attach the button body on the fabric.

The invention according to claim 2 is the synthetic resin button for jeans according to claim 1, wherein a plurality of spike-shaped small protrusions are formed on the bottom surface of the bottom plate portion of the shaft portion of the button body. It is characterized by.

A third aspect of the invention is the synthetic resin button for jeans according to the first or second aspect, wherein a concavo-convex pattern is formed on the head surface of the button body.

According to the invention of claim 1, since it is a button for jeans composed of a synthetic resin button main body and a synthetic resin rivet, each of the button main body and the rivet becomes a single injection-molded product. Rust plating and color painting are not required, and it is possible to create uneven patterns such as letters and figures on the head surface of the button body simply by changing the inner surface of the mold, and only selecting the color of the material resin Therefore, it is also easy to manufacture a different color button body, and the number of component parts and manufacturing man-hours of the button body are reduced as compared with all the conventional examples described above, and the button body can be manufactured efficiently and at low cost. .

In addition, since it is a button for jeans consisting of a synthetic resin button body and a synthetic resin rivet, it does not react to the meter reading machine that detects the broken needle mixed in the jeans, making the jeans a meter reading machine. The safety of the product can be ensured through, and the button body is a single injection-molded product, so that the decorative plate may rotate with respect to the shaft portion as in the conventional example described above. There is nothing at all.

According to the second aspect of the present invention, the plurality of spike-shaped small protrusions formed on the bottom surface of the bottom plate portion of the shaft portion of the button body bite into the surface of the fabric, so that the button body has an axis around the axis of the fabric. Rotation can be prevented.

According to the invention which concerns on Claim 3, since the uneven | corrugated pattern is formed in the surface of the head in a button main body, there exists an effect which can improve the beauty | look and design property of jeans.

It is a figure which shows the usage example of the synthetic resin buttons for jeans which concern on this invention. It is a figure explaining the attachment method of the said synthetic resin buttons. It is sectional drawing in the state after attachment of the said synthetic resin buttons. It is sectional drawing in the state before attachment of the said synthetic resin buttons. It is a perspective view of the button body in other embodiments of the present invention. It is AA sectional drawing of FIG. It is sectional drawing which shows a prior art example. It is sectional drawing which shows another prior art example. It is sectional drawing which shows another prior art example. It is sectional drawing which shows another prior art example.

In the figure, A indicates a synthetic resin button for jeans according to the present invention. The button main body 1 is formed on the cloth B from the opposite side of the button main body 1 across the synthetic resin button main body 1 and the jeans cloth B. It consists of synthetic resin rivets 2 to be attached.

The button body 1 has a disk-shaped head 4 having a thickness T with a circular opening 3a formed in the center,
A mounting hole 3b having the same diameter connected to the opening 3a on the back surface of the head 4 in a cylindrical shape with a circular cross section.
A through hole 3c having a diameter smaller than that of the mounting hole 3b is formed concentrically in the bottom plate portion 5a of the shaft part 5. A plurality of spike-like small projections 6 are provided at equal intervals in the circumferential direction on the bottom surface of the bottom plate portion 5a. The small projections 6 bite into the surface of the fabric B of the jeans, whereby the button body 1 against the fabric B is obtained. Is configured to prevent rotation about the axis of the.

The rivet 2 is used for caulking in which a disk-shaped head portion 7 having a smaller diameter than the head portion 4 of the button body 1 and a cylindrical shaft portion protruding from the center of the back surface is tapered. A plurality of spike-shaped small projections 9 are provided on the back surface of the head 4 at equal intervals in the circumferential direction. Then, in the state where the protrusion 8 of the rivet 2 pierced into the jeans fabric B is inserted into the attachment hole 3b of the shaft portion 5 in the button body 1, the protrusion tip protrudes upward from the through hole 3c of the bottom plate portion 5a. The button body 1 is attached to the fabric B by being squeezed to the annular step portion 10 formed between the attachment hole 3b and the through hole 3c by crushing the portion by striking and deforming by expanding. Has been.

According to said structure, since it is a button for jeans comprised by the synthetic resin button main body 1 and the synthetic resin rivet 2, each of the button main body 1 and the rivet 2 becomes a single injection molded product, Rust-proof plating and color coating are not required, and it is possible to create uneven patterns such as letters and figures on the head 4 surface of the button body 1 simply by changing the inner surface of the mold. It is easy to manufacture button bodies of different colors simply by selecting the number of components, and the number of component parts and manufacturing man-hours of the button body 1 are reduced as compared with all the conventional examples described above. Can be manufactured at low cost.

In addition, since it is a button for jeans composed of a synthetic resin button body 1 and a synthetic resin rivet 2, it does not react to a meter reading machine that detects a broken needle mixed in jeans, and the jeans are read. The safety of the product can be ensured through the machine, and since the button body is a single injection molded product, the decorative plate may rotate with respect to the shaft portion as in the conventional example described above.
There is nothing in principle.

5 and 6 show another embodiment of the present invention. The embodiment shown in FIG. 6 is characterized in that an uneven pattern 11 such as letters and figures is formed on the surface of the head 4 of the button body 1 to enhance the aesthetics and design of jeans. Other configurations and operations are the same as those of the embodiment of FIGS.

A Button made of synthetic resin for jeans B Fabric T Thickness 1 Button body 2 Rivet 3a Opening 3b Mounting hole 3c Through hole 4 Head 5 Shaft 5a Bottom plate part 6 Small protrusion 7 Head 8 Projection 9 Small protrusion 10 Annular step 11 Uneven pattern

Claims (3)

It consists of a synthetic resin button body and synthetic resin rivets that attach the button body to the fabric from the opposite side of the button body across the jeans fabric. The button body has a circular opening in the center. And a shaft portion provided in a cylindrical shape on the back surface of the head portion and having a mounting hole having the same diameter connected to the opening. The bottom plate portion of the shaft portion has a smaller diameter than the mounting hole. A hole is formed concentrically, and the rivet is composed of a head and a sharp projection for caulking formed with a tapered shape at the tip end of a cylindrical shaft protruding from the center of the back surface thereof, and is a fabric of jeans By inserting the protrusion of the rivet pierced into the mounting hole of the shaft portion of the button body into the mounting hole of the shaft portion, the protrusion tip portion protruding upward from the through hole of the bottom plate portion is crushed by striking to be expanded in diameter. With mounting holes And caulking the annular step portion which is formed between the through hole, the synthetic resin buttons for jeans, characterized in that to attach the button body on the fabric. The synthetic resin button for jeans according to claim 1, wherein a plurality of spike-shaped small protrusions are formed on the bottom surface of the bottom plate portion of the shaft portion of the button body. An uneven pattern is formed on the surface of the head of the button body.
Or the synthetic resin button for jeans of 2.

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