JP6538406B2 - button - Google Patents

Description

  The present invention relates to a button that can be used as a button for jeans having a button body and a rivet attached to the material of the jeans, for example.

  The conventional button shown in FIG. 4 includes a button main body 51 and a rivet 52, and the button main body 51 is continuously provided on the button head 53 formed without an opening at the center and on the back surface of the button head 53. The rivet 52 has a rivet head 55 and a projection 56 projecting from the center of the back surface and having a tapered tip end side, and the side surface of the projection 56 is provided with a rivet 54. A locking portion 58 is provided for locking on the inner surface of the recessed portion 57, and the locking portion 58 is inserted in the recessed portion 57 of the button main body 51 with the projection 56 of the rivet 52 pierced through the cloth 59. The button main body 51 is attached to the cloth 59 by being locked to the inner surface of the recessed portion 57 (Patent Document 1).

Japanese Utility Model Publication No. 60-69008

  In the above-described conventional button, when the conical projection 56 is inserted into the concave portion 57 having a circular cross section, the concave portion 57 is closed by the projection 56. Air will be compressed. Therefore, when the button main body 51 is made of synthetic resin in particular, when the button is attached to the cloth 59, the protrusion 56 is easily broken when inserted into the recessed portion 57.

  The present invention has been made with the above in mind, and it is an object of the present invention to provide a button that is resistant to breaking when attached to a fabric or the like.

In order to achieve the above object, the button according to the present invention comprises a button body made of synthetic resin and a rivet, and the button body is integrally molded with the button head and the central portion of the back of the button head. And a recessed portion is provided in the state of opening on the tip end surface side of the shaft portion, and the rivet is provided with a rivet head, and a central back surface of the rivet head. And a cone-like part which is continuous with the tip of the column and becomes thinner as it is separated from the column, and the rear end of the pyramid-like part is smaller than the tip of the column. The conical portion is inserted into the recessed portion, and the locking portion is engaged with the inner peripheral surface of the shaft portion forming the recessed portion after the insertion. An outer periphery of the pyramidal part, with the pyramidal part inserted in the recess. Between the inner circumferential surface of the shaft portion and the inner circumferential surface of the shaft portion, there is formed a space for air circulation which allows the space located on the back side of the locking portion to communicate with the space located on the inlet side in the recessed portion. is configured,
Furthermore, the concave portion has a cross-sectional shape perpendicular to the axis of the shaft portion in which each side of a regular hexagon is recessed inward (claim 1).

In the above buttons, the conical portion may be coloration conical.

  In the present invention, it is possible to obtain a button that is not easily broken when attached to a fabric or the like.

That is, in the conventional button shown in FIG. 4, when the conical projection 56 is inserted into the concave portion 57 having a circular cross section, the air in the concave portion 57 is compressed, and the button is affected by the compression. There is a problem that the main body 1 is easily broken. On the other hand, in the button of the invention according to claim 1 of the present application, the concave portion is inserted between the outer peripheral surface of the conical portion and the inner peripheral surface of the shaft portion in a state of being inserted into the concave portion. A clearance for air flow is formed in the insertion portion for communicating the space located on the back side with respect to the locking portion and the space located on the inlet side in the insertion portion, so that the pyramidal portion is formed in the recess while releasing the air in the recess. It is reliably prevented that the button body is broken under the action of compressed air.

In addition, the button body is thermally expanded and thermally shrunk due to a change in ambient temperature, for example, due to a change in season, and if the cross-sectional shape of the recessed portion is a perfect circle, the expansion and contraction affect the outer peripheral surface of the shaft portion. It will be overdue. However, in the button according to the first aspect of the present invention, since the cross-sectional shape of the recessed portion is a non-perfect circular shape in which each side of a regular hexagon is recessed inward, the influence of the above expansion and contraction is the inner circumference of the shaft portion. The advantage of being able to be relieved in terms of surface and not having to make a large change on the outer peripheral surface of the shaft portion is also obtained.

It is a longitudinal cross-sectional view which shows roughly the structure of the button which concerns on one embodiment of this invention. It is a perspective view which shows roughly the structure of the button main body of the said button. It is a perspective view which shows the structure of the rivet of the said button roughly. It is an explanatory view showing composition of the conventional button roughly.

  Embodiments of the present invention will be described below with reference to the drawings.

  The button shown in FIG. 1 can be used, for example, as a button for jeans, and comprises a button body 1 and a rivet 2. In addition, the same figure shows a button in a state of being attached to a sheet-like member 3 (here, jeans cloth) such as cloth of clothes.

  As shown in FIG. 2, the button body 1 has a substantially disk-shaped button head 4 and a substantially cylindrical shaft 5 integrally formed at the center of the back of the button head 4. The recessed part 6 is provided in the state opened to the front end surface side of the axial part 5 at this.

  As shown in FIG. 3, the rivet 2 is continuous with a substantially disc-like rivet head 7, a substantially cylindrical pillar 8 integrally formed at the center of the back surface of the rivet head 7, and a tip of the pillar 8. And the rear end of the conical portion 9 is configured as a locking portion 10 having an outer diameter larger than that of the front end of the cylindrical portion 8. There is.

  Here, although the button main body 1 and the rivet 2 are made of synthetic resin (for example, thermoplastic resin such as polyacetal, nylon etc.), the rivet 2 may be made of metal.

  Then, in the button of this example, the conical portion 9 of the rivet 2 is inserted into the recessed portion 6 of the button main body 1 and after this insertion, the locking portion 10 of the rivet 2 forms the recessed portion 6 in the button main body 1 It is comprised so that it may latch on the internal peripheral surface of the axial part 5 which

  Further, in the button of the present embodiment, in the state where the conical portion 9 is inserted into the concave portion 6, the concave portion 6 is locked between the outer circumferential surface of the conical portion 9 and the inner circumferential surface of the shaft portion 5. A space for air circulation is formed to communicate the space located on the back side with respect to the portion 10 and the space located on the inlet side.

  Specifically, while the conical portion 9 has a conical shape as described above, the concave portion 6 has a cross section perpendicular to the axis of the shaft portion 5 in which each side of a regular hexagon is recessed inward. It is configured to have a shape (an example of a non-perfect circular shape).

  Here, as described above, in order to lock the locking portion 10 to the inner wall surface of the recessed portion 6 when the conical portion 9 is inserted into the recessed portion 6, the shaft portion 5 shown in FIG. Set the minimum inner diameter (the distance between the central portions of the two opposite sides facing each other) d of the recessed portion 6) and the maximum outer diameter D of the conical portion 9 shown in FIG. 3 (the outer diameter of the locking portion 10). If, for example, the minimum inner diameter d of the shaft portion 5 is 1.4 mm to 2.4 mm, the maximum outer diameter D of the conical portion 9 should be larger than this by 0.8 mm to 1.2 mm. it can.

  In addition, as described above, in the state where the conical portion 9 is inserted into the concave portion 6, the locking portion in the concave portion 6 between the outer circumferential surface of the conical portion 9 and the inner circumferential surface of the shaft portion 5 In order to form a space for air circulation that allows the space located on the back side of 10 and the space located on the inlet side to be communicated, the maximum outside of the shaft portion 5 (recessed portion 6) shown in FIG. The diameter (the distance between two opposing apexes) dmax may be set appropriately.

Thus, with the button of this example, even if the button body 1 is made of synthetic resin, it becomes difficult to break when attached to a cloth or the like. That is, in the conventional button shown in FIG. 4, when the conical projection 56 is inserted into the concave portion 57 having a circular cross section, the air in the concave portion 57 is compressed, and the button is affected by the compression. There is a problem that the main body 51 is easily broken. On the other hand, in the button of this example, the concave portion 6 is inserted between the outer circumferential surface of the conical portion 9 and the inner circumferential surface of the shaft portion 5 in a state where the conical portion 9 is inserted into the concave portion 6. In this case, since a space for circulating air is formed to communicate the space located on the back side with respect to the locking portion 10 and the space located on the inlet side, the pyramidal portion 9 is recessed while the air in the recessed portion 6 is released. It can be made to enter into the insertion part 6, and the button body 1 is reliably prevented from being broken by the action of compressed air.

  Further, for example, thermal variations and thermal contractions of the button main body 1 occur due to changes in ambient temperature, such as seasonal changes, and if the cross-sectional shape of the recessed portion 6 is a perfect circle, the expansion and contraction affect the shaft portion 5 It will extend to the outer surface properly. However, in the button of the present embodiment, since the cross-sectional shape of the recessed portion 6 is non-circular, the influence of the above expansion and contraction can be mitigated by the inner peripheral surface of the shaft portion 5, and the outer periphery of the shaft portion 5 It also has the advantage of avoiding major changes in the surface.

DESCRIPTION OF SYMBOLS 1 button body 2 rivet 3 sheet-like member 4 button head 5 shaft 6 recessed part 7 rivet head 8 column 9 pyramidal portion 10 locking portion 51 button body 52 rivet 53 button head 54 shaft portion 55 rivet head 56 Protrusion 57 Recessed portion 58 Locking portion 59 Material d Minimum diameter of the shaft portion dmax Maximum diameter of the shaft portion D Maximum diameter of the conical portion

Claims (1)

It has a button body made of synthetic resin and rivets,
The button body has a button head and a shaft integrally formed at the center of the back surface of the button head, and the shaft has a recessed portion in a state of being opened on the tip surface side of the shaft. Is provided,
The rivet has a rivet head, a post integrally formed at the center of the back surface of the rivet head, and a conical part continuous with the tip of the post and tapered as it is separated from the post The rear end of the pyramidal portion is configured as a locking portion having a larger outer diameter than the front end of the pillar portion,
The button is a button that is configured to be inserted into the recess, and after the insertion, the locking portion is locked to the inner circumferential surface of the shaft that forms the recess.
In a state where the conical portion is inserted into the concave portion, the concave portion is positioned on the back side of the locking portion between the outer circumferential surface of the conical portion and the inner circumferential surface of the shaft portion A gap for air flow is formed to communicate the space to be in communication with the space located on the inlet side ,
Furthermore, the recesses are buttons which the cross-sectional shape perpendicular to the axis of the shaft portion is in the shape obtained by recessing the respective sides of the regular hexagon on the inside.

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