JP2016104063A - Button for jeans - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost and light-weight button for jeans allowing a person to easily select a color matching a color of the jeans and being fixed to a fabric by simple fixing work.SOLUTION: A button A for jeans comprises: a synthetic-resin button body 1; and a rivet 3 for fixing the button body 1 to a fabric 2 from an opposite side of the button body 1 with the fabric 2 of jeans G interposed therebetween. The button body comprises a head part 4 formed without having an opening at a center, and a cylindrical shaft 5 continued from a back face m of the head part. The rivet comprises a head part 6, and a columnar shank 7 projecting from a central part of a back face n thereof, where a tip end side is formed into a tapered shape. A lateral face T of the columnar shank includes a locking part 8 to be locked to an inner face R of the cylindrical shank. In a state where the columnar shank of the rivet pierced into the fabric of the jeans is inserted into the cylindrical shaft of the button body, the locking part is locked to the inner face of the cylindrical shaft so as to fix the button body to the fabric.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a button for jeans, and more particularly to a button for jeans composed of a button body and a rivet that attaches the button body to the fabric from the opposite side of the button body across the jeans fabric.

  FIG. 5 shows a front center button (an example of a button for jeans) A, which is composed of a synthetic resin button body and a synthetic resin rivet, as described in Patent Document 1, The button body is mainly composed of a thick disk-shaped head having a circular opening (relatively large hole) formed in the center, and a cylindrical shaft portion continuously provided on the back surface of the head, On the other hand, the rivet is composed of a head and a sharp protrusion for caulking in which a tip end side of a cylindrical shaft portion protruding from the center of the back surface is tapered. And in patent document 1, while inserting the said protrusion of the rivet pierced into the fabric of jeans into the said cylindrical axial part of a button main body, the front-end | tip part of the said protrusion is in the said opening formed in the button main body. It is described that the projection is hit by a hammer of a button attachment machine to be inserted, and caulking is stopped in the cylindrical shaft portion.

Utility Model Registration No. 3189174

  However, in the button for jeans described in Patent Document 1, since the tip end portion of the protrusion is swaged into the cylindrical shaft portion, the button main body cannot be fixed by a simple operation, and the production efficiency is increased accordingly. However, simplification of fixing means is desired.

  In addition, in general production of buttons for jeans, in order to give a concavo-convex pattern to the head surface of the button body, a metal makeup is made by secondary processing of a metal plate that is pre-pressed with the concavo-convex pattern. It is necessary to manufacture a board. This decorative plate covers, for example, the upper surface of the head of the button body so as to hide the opening of the button body, and the number of steps such as secondary processing increases. After applying rust-preventive plating, color coating must be applied, which significantly increases man-hours and is disadvantageous in terms of cost.

  In addition, in the current jeans industry, jeans of various colors other than blue, which are unique to denim fabrics, are also becoming popular. It is also desired that they can be produced in different colors.

  The present invention has been made in consideration of the above-mentioned matters, and it is possible to easily select a color that matches the color of the jeans, and can be fixed to the fabric by a simple attachment work, and is a low-cost and lightweight jeans. The purpose is to provide a button.

  In order to achieve the above object, the present invention comprises a synthetic resin button body and a rivet for attaching the button body to the fabric from the opposite side of the button body across the jeans fabric. The head is formed without having an opening, and a cylindrical shaft portion that is continuously provided on the back surface of the head. The columnar shaft portion is formed, and on the side surface of the columnar shaft portion, a locking portion for locking to the inner surface of the cylindrical shaft portion is provided, and the columnar shaft of the rivet pierced into the fabric of jeans Jeans characterized in that the button body is attached to the fabric by locking the locking portion to the inner surface of the cylindrical shaft portion in a state where the portion is inserted into the cylindrical shaft portion of the button body. Button (claim) ) To provide.

  Further, the present invention provides the button for jeans (claim 2), wherein the rivet is made of a synthetic resin.

  Furthermore, this invention provides the button for jeans (Claim 3) of Claim 1 or 2 by which the uneven | corrugated pattern is formed in the surface of the head in the said button main body.

  In the present invention, the button main body is fixed by providing a locking portion for locking the inner surface of the cylindrical shaft portion formed on the button body on the side surface of the columnar shaft portion formed on the rivet. Compared to the prior art (the invention described in Patent Document 1) in which the tip of the projection of the cylindrical shaft portion formed on the rivet is caulked to the cylindrical shaft portion, the button body is fixed. This can be carried out with simple locking means, whereby the production efficiency can be improved. In the present invention, before the columnar shaft portion formed on the rivet is inserted into the cylindrical shaft portion formed on the button body, the locking portion is already formed on the side surface of the columnar shaft portion. ing. On the other hand, in the prior art, after the sharp protrusion for caulking is inserted into the cylindrical shaft portion formed on the button body, the protrusion is caulked, and the present invention and the prior art The button body fixing means are different, and the button body fixing order is reversed before and after insertion.

  In addition, in the present invention, the button body is made of a synthetic resin, so that the button body becomes a single injection-molded product, no rust-preventive plating or color coating is required, only by changing the mold inner surface shape, It is possible to attach uneven patterns such as letters and figures to the surface of the head of the button body, and it is easy to manufacture button bodies of different colors simply by selecting the color of the material resin. It is possible to provide colored button bodies that match the colors of colored jeans, improving design. Further, in the present invention, for example, as shown in FIG. 1B, the maximum outer diameter of the tapered portion 7 a of the columnar shaft portion 7 in the rivet 3 is set more appropriately than the inner diameter α of the cylindrical shaft portion 5 in the button body 1. By setting the length longer, when the button body 1 is fixed to the fabric, the jeans button A swells as shown in FIG.

  Furthermore, in the present invention, compared to the case where a button for jeans is used, the number of constituent parts including at least three members including a button main body, a rivet, and a metal decorative plate with an uneven pattern is used in the present invention. Since it is a button for jeans composed of a button body made of two parts and a rivet, the number of components can be reduced, and the cost can be reduced accordingly. Further, compared to a jeans button in which at least both the button body and the rivet are made of metal, the present invention provided with a synthetic resin button body can provide a lightweight jeans button.

(A) is sectional drawing which shows the state after the attachment fixation in the 1st Embodiment of this invention. (B), (c) is a figure which shows the effect | action in the said embodiment. (A) is a top view which shows the button body made from a synthetic resin used by the said embodiment. (B) is the sectional view on the AA line in Fig.2 (a). (C) is a bottom view showing a synthetic resin button body used in the embodiment. (A) is a top view which shows the button main body made from a synthetic resin used in the 2nd Embodiment of this invention. (B) is the BB sectional view taken on the line in Fig.3 (a). (C) is a bottom view showing a synthetic resin button body used in the second embodiment. It is a perspective view which shows the synthetic resin button body used in the 3rd Embodiment of this invention. It is a figure which shows the usage example of the button for jeans.

  Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

  1A and 2, a jeans button A is formed from a side opposite to the button body 1 with a synthetic resin button body 1 and a fabric 2 of, for example, colored jeans G (see FIG. 5) interposed therebetween. A synthetic resin rivet 3 for attaching the button body 1 to the fabric 2 is constituted. The rivet 3 may be made of metal. The button body 1 includes a head 4 formed without having an opening in the center, and a cylindrical shaft portion 5 provided continuously to the back surface m of the head 4. The head 4 has a flat disk shape having a thickness S and a flat (same) surface q. In the center of the cylindrical shaft portion 5 of the button body 1, a mounting hole H for mounting a rivet that has a circular cross section and does not penetrate is formed. That is, the cylindrical shaft portion 5 is concentric with a tapered tapered rivet inlet opening 11 and a bottomed insertion hole 12 having a smaller diameter and an appropriate length than the opening 11 in the center from the rivet insertion side. A mounting hole H is formed. The mounting hole H formed at the center of the cylindrical shaft portion 5 is formed in a bottomed shape so as not to penetrate the center of the cylindrical shaft portion 5. In addition, an air vent hole is provided (not shown) for communicating the outside of the cylindrical shaft portion 5 with the inside of the mounting hole H. On the other hand, the rivet 3 includes a head 6 and a columnar shaft portion 7 that protrudes from the central portion of the back surface n of the head 6 and has a tip end formed in a tapered shape. That is, the columnar shaft portion 7 has a sharp tapered portion 7a. Further, a locking portion 8 that locks to the inner surface R of the cylindrical shaft portion 5 is provided on the side surface T of the columnar shaft portion 7. The locking portion 8 is a locking step (projection) that extends around the entire periphery below the tapered portion 7a. In this embodiment, the inner diameter α (see FIGS. 1A and 1B) of the cylindrical shaft portion 5 in the button body 1 is preferably 1.5 mm to 2.2 mm, and the columnar shaft in the rivet 3 The maximum outer diameter β [see FIG. 1 (b)] of the tapered portion 7 a of the portion 7 is preferably larger by 0.8 mm to 1.2 mm than the inner diameter α of the cylindrical shaft portion 5. By setting the dimensions in this way, when the button main body 1 is fixed to the fabric 2, as shown in FIG. 1C, the button A for jeans swells the cylindrical shaft portion 5 in the synthetic resin button main body 1. This provides a retaining effect. This action is obtained because the button body 1 is made of a synthetic resin, and such a function of preventing the button from being removed is not made of metal.

  In the button A for jeans, the locking portion 8 is inserted into the cylindrical shaft portion 5 of the button body 1, that is, in a state where the columnar shaft portion 7 of the rivet 3 pierced into the fabric 2 of the jeans G is inserted into the mounting hole H. The button body 1 is configured to be attached to the fabric 2 by engaging the inner surface R of the cylindrical shaft portion 5. Furthermore, in this embodiment, a small protrusion 9 is provided on the back surface n of the rivet head 6. In addition, when the small protrusion 10 is provided also on the bottom face e of the cylindrical shaft part 5, the small protrusion 9 and the small protrusion 10 prevent the cloth 2 from sliding, so that the button A can be firmly attached to the cloth 2. . In addition, the outer edge part 13 in the flat surface q of the head 4 is formed in the curved surface. The outer edge portion 14 on the back surface m of the head 4 is also formed in a curved surface.

  The button body 1 is made of a thermoplastic synthetic resin such as polyacetal, and is mainly molded by injection molding means, and has a color matching the color of jeans.

  Thus, before the columnar shaft portion 7 is inserted into the cylindrical shaft portion 5, the locking portion 8 has already been (preliminarily) formed on the side surface T of the columnar shaft portion 7, so that the taper penetrates the fabric 2. The stepped portion (locking portion) 8 is locked to the inner surface of the mounting hole H by press-fitting the columnar shaft portion 7 including the portion 7 a into the mounting hole H of the cylindrical shaft portion 5 formed at the center of the button body 1. Thus, the button body 1 made of synthetic resin can be fixed to the fabric 2.

  In the above embodiment, the step portion is adopted as the locking portion. However, in the present invention, the shape is not limited to this, and the shape is fixed to the inner surface of the mounting hole H by being press-fitted into the mounting hole H of the cylindrical shaft portion 5. If it is a thing.

  In the said 1st Embodiment, the button main body 1 provided with the head 4 with the flat surface q was shown.

  FIG. 3 shows a second embodiment of the present invention in which a graphic design (uneven pattern) is applied to the surface q of the head 4 of the button body 1. 3, the same reference numerals as those shown in FIGS. 1 and 2 are the same or equivalent.

  For example, in FIG. 3B, the concavo-convex pattern is mainly composed of an annular protrusion 20, a central protrusion 21, and an annular protrusion 22 that goes around the outer edge of the head 4. In this embodiment, the surface q of the head 4 is not a flat surface, but is formed between the annular protrusions 20 and 22 on a slope surface 23 that gradually descends from the center toward the outside. Thus, since the uneven | corrugated pattern is formed in the surface q of the head 4 of the colored button main body 1, the beauty | look and design property of the jeans G can be improved.

  FIG. 4 shows a third embodiment of the present invention in which the surface q of the head 4 of the button body 1 is provided with a plurality of characters 25 and an uneven pattern. In FIG. 4, the same reference numerals as those shown in FIGS. 1, 2, and 3 are the same or equivalent.

DESCRIPTION OF SYMBOLS 1 Button body made of synthetic resin 2 Material 3 Rivet 4 Head part of button body 5 Cylindrical shaft part 6 Rivet head part 7 Columnar shaft part 8 Locking part G Jeans m, n back surface T Side surface of columnar shaft part R Cylindrical shape Inner surface of the shaft A Button for jeans

Claims (3)

  It consists of a button body made of synthetic resin and a rivet that attaches the button body to the fabric from the opposite side of the button body across the jeans fabric, and the button body is formed without an opening in the center. And a cylindrical shaft portion continuously provided on the back surface of the head portion, and the rivet includes a head portion and a columnar shaft portion projecting from a center portion of the back surface and having a tip end side formed in a tapered shape. A locking portion for locking to the inner surface of the cylindrical shaft portion is provided on the side surface of the shaft portion, and the columnar shaft portion of the rivet pierced into the fabric of jeans is placed in the cylindrical shaft portion of the button body. A button for jeans, wherein the button main body is attached to the fabric by locking the locking portion to the inner surface of the cylindrical shaft portion in the inserted state.   The jeans button according to claim 1, wherein the rivet is made of a synthetic resin.   The button for jeans according to claim 1, wherein a concavo-convex pattern is formed on a surface of a head portion of the button body.

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