KR860001754Y1 - Button - Google Patents

Abstract

No content.

Description

button

1 is a front sectional view showing a conventional button leg member.

2 is a plan view of FIG.

FIG. 3 is a front sectional view of the button showing the process of attaching the button head of FIG. 1. FIG.

4 is a front cross-sectional view of another conventional button.

5 is a cross-sectional view of the finished button.

6 is a front cross-sectional view of another conventional button.

7 is a front cross-sectional view of the completed button.

8 is a front cross-sectional view showing the attachment leg member of the button of the present invention of FIG.

9 is a plan view of the attachment leg member.

10 is a cross-sectional view of the button head of the present invention.

11 is a plan view of the same.

12 is a front cross-sectional view of the subject innovation button.

13 is a front cross-sectional view of a button according to another embodiment of the present invention.

14 is a front cross-sectional view of a button according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

12: polyester resin button 13: metal attachment leg member

14: enlarged portion 15: circular element

17: disc upper part 18: outer peripheral part

19: leg 20: entrance

The present invention is directed to an improvement of a button with plastic head and metal legs.

Buttons with plastic tofu are widely used for the purpose of giving the head a design effect. Among them, some types of plastic heads and metal leg parts are known. Means for joining the heads and legs are different depending on the type of plastics, but none of them are satisfactorily provided.

1 to 3 are examples of using a thermosetting resin of a conventional button, as shown in Figs. 1 to 2, an attachment leg from an annular base 1 to a garment (in this example, a pin with a sharp tip) (2) The standing metal leg member is put together with the thermosetting resin in the shaping | molding die 3 as shown in FIG. In order to sufficiently grasp the metal leg member into the plastic, the base 1 of the member is formed in an annular shape so that the resin is sufficiently turned around. The button head made of thermosetting resin is hard to be scratched due to its high hardness and is excellent in design, but in order to attach it to the garment, the button head 4 is placed on an element of the attachment mold, and the attachment pressure is applied to the leg 2. When it is applied to the button head 4 from the annular base 1 is locally applied, the phenomenon in which the gold is generated in the button head 4 is often observed, and the occurrence of defects cannot be avoided. In addition, an internal stress occurs due to a difference in thermal contraction between the button head and the leg member during the heat curing treatment and cooling of the button head, causing cracking. 4 to 5 are conventional examples of using a hard thermoplastic resin, in which a button leg 6 having a conical end is attached to a button head 6 having an enlarged bottom element (in this case, a pipe). The conical end portion is expanded by applying a pressure in the direction of the arrow, and the expansion portion is joined to the enlarged bottom of the element 5 as shown in FIG. In this example, when the thermosetting resin is used for the button head, a thermoplastic resin is usually used because gold is generated in the button head unless the dimensional accuracy is strictly controlled. However, thermoplastic resins have a drawback that they lack button aesthetics and are easily scratched, and are poor in heat resistance and chemical resistance. 6 to 7 show that the base flange of the attachment leg member 11 is inserted into a hard thermoplastic button head 10 having an element 8 and a ridge 9 surrounding it (Fig. 6), The button (FIG. 7) which corked the raised part 9 to this flange is displayed. In this example, the button head material is limited to thermoplastic resin.

It is therefore an object of the present invention to provide a button having a plastic button head without such a defect.

In short, the button of the present invention has a button head made of thermoset polyester resin having an enlarged element inside, a generally disc-shaped base larger than the inlet diameter of the element, and at least one upright leg standing up from the base. It is made of a metallic leg member, characterized in that the disk-shaped base is attached to the inner enlarged portion through the narrow inlet of the element. With this configuration, the button head of the button of the present invention has excellent properties as a thermosetting thermosetting resin, and since the base of the attachment member is disc-shaped, the pressure applied to the garment is dispersed and thermoset. Despite being a button head, it does not crack or crack.

8 to 12 show a button of the present invention, where 12 is a button head and 13 is an attachment leg member. The button head 12 is made of a thermosetting polyester resin, and the decorative surface 16 is formed on the front side, and the circular element 15 is formed on the rear side with a narrow opening and an enlarged portion 14 therein. This button head 12 is formed in advance before engaging with the leg member 13. On the other hand, the leg member 13 has a generally circular base 17 having a surface substantially the same shape as the bottom face of the circular element 15 of the button head 12 and a radius of the outer circumference 18 of the base 17. It is comprised by the some leg 19 standing up in a direction inner side position. An important point of the leg member 13 is to form a disc to avoid stress concentrations when the base 17 is attached to the garment, which should not be annular. The dimensional relationship between the diameter of the base 17 of the attachment leg member 13 and the diameter of the inlet 20 of the circular element 15 of the button head 12, the base 17 is attached to the circular element 15. Make sure that the difference in their diameters is large enough in the range that does not interfere. This relationship can be easily determined experimentally. In addition, the inner enlarged portion 14 of the circular element 15 of the button head 12 is set to be substantially the same as or larger than the diameter of the base 17 of the attachment leg member 13.

To combine the button head 12 and the attachment leg member 13 having the above-described configuration, the button head 12 is supported in a mold having a support surface constituting the surface 16 and complementary thereto. After heating to a temperature at which the ester resin softens slightly, for example about 50 ° C., the base 17 of the button element 13 and the foot member 13 is inserted. In this way, the button head made of polyester resin can be easily combined with the leg member without breaking.

In the case of attaching the assembled button to the garment in this way, the attachment pressure is dispersed on the wide coupling surface of the base 17 of the attachment leg member 13 and the button head 12 and the circular element 15, so that the thermosetting type Despite the use of the resin, the problem of cracking is avoided, and features such as texture, hardness, heat resistance and chemical resistance similar to those of natural stone or tortoise of the polyester resin can be used.

FIG. 13 shows another embodiment of the present invention, in which 21 is a button head made of polyester resin, and 22 is an attachment leg having a flat disc-shaped base 23 and a tubular attachment leg 24. It is absent. The assembly of the button in this embodiment is also the same as in the above embodiment.

FIG. 14 shows another embodiment of the present invention, in which 31 is a button head of a thermosetting polyester resin, and 32 is an attachment leg member having an annular flange and a tubular attachment leg 34.

The annular flange 32 is fixedly covered by a disk-shaped base 33 having a curved button head.

As described above, it will be apparent to those skilled in the art that various modifications of the conventional embodiments are possible without departing from the spirit and scope of the present invention.

Claims (1)

A polyester resin button head 12 having a circular element 15 having an enlarged portion 14 therein, a generally disc-shaped base 17 larger than the inlet diameter of the circular element 15 and the disc shape. It is composed of a metal leg member 13 composed of at least one attachment leg 19 upright from the base 17, the disc-shaped base 17 through the narrow inlet 20 of the circular element 15 And a button attached to the inner enlarged portion (14).