JPH0711619Y2 - Female snap fitting of snap fastener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a female fitting of a snap fastener, and more particularly to a female fitting of a type that is sewn to clothes such as brass with a thread.

[Conventional technology]

As this type of female fitting, as shown in FIG.
At the center of the base body 40 made of metal such as brass, a cylindrical body 42 forming a recessed portion 41 into which the protruding portion of the male fitting is inserted is provided.
A clip spring bent into a substantially S-shape on the base 43 of the tubular body 42
It has been known for a long time that it is configured with 43. 44 is a hole for sewing.

[Problems to be solved by the invention]

In the above-mentioned conventional example, since the female fitting is made of metal, when the clothes are washed, rust is generated and there is a drawback that the clothes are attached to the clothes. In addition, the number of parts (base 40
There are many clip springs 43), and further, after the base body 40 is processed into a predetermined shape, the minute clip springs 43 must be caulked to the base body 40, which has a drawback that the manufacturing process is complicated and the cost is high.

The purpose of the present invention is to eliminate these conventional drawbacks,
This is to prevent the thread sewn on the cloth from the female fitting body from being caught by another object and causing an unexpected thread breakage.

[Means for solving problems]

The technical means taken by the present invention to achieve the above object are as follows. That is, the features of the present invention are: a central annular portion having a through hole into which the protrusion of the male fitting is fitted so that it can be fitted and removed, and four projecting pieces radially protruding outward from the central annular portion. And an outer annular portion that connects the tips of the protruding pieces together with a synthetic resin material, and the surface of the protruding piece is made lower than the surface of the surrounding outer annular portion, and the protruding piece is sewn to the fabric. In addition to the above, the central annular portion and each protruding piece are formed with radial slits continuous with the through holes.

[Action]

According to the above configuration, since the whole is made of synthetic resin, it can be mass-produced easily and inexpensively by injection molding, and rust does not occur when washing clothes.

Due to the openings formed between the radial protrusions and the radial slits formed in the central annular portion and each protrusion, sufficient flexibility and deformation can be obtained even if the material resin is relatively hard. Even if the protrusion of the male fitting is repeatedly fitted and removed, the through hole of the central annular portion does not expand.

Further, the radial protruding piece located inside the outer annular portion is configured to be sewn to the fabric, and moreover, the surface of the protruding piece is lower than the surface of the surrounding outer annular portion, There is no risk that the thread for sewing will get caught on other objects.

〔Example〕

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

FIG. 1 shows a female fitting 1 of a snap fastener according to the present invention. 2 and 3 are a perspective view and a sectional view showing a usage state of the female fitting 1.

The female fitting body 1 has a central annular portion 5 having a through hole 4 into which the protrusion 3 of the male fitting body 2 can be fitted and removed freely, and a portion 4 radially protruding outward from the central annular portion 5. The protruding pieces 6 of a book and the rectangular outer annular portion 7 connecting the tips of the protruding pieces 6 ... Are integrally molded by an injection molding method of a synthetic resin material. The surface of the outer ring portion 7 is lower than the surface of the outer ring portion 7 located around the outer ring portion 7, and the tip side portion of the projecting pieces 6 ... Is sewn to the cloth 8 of the garment. Radial slits 9 ... Connected to the through holes 4 at 6 ...
Has been formed.

According to the above configuration, even when the female fitting body 1 is made of a relatively hard synthetic resin, when the protrusion 3 of the male fitting body 2 is fitted into the through hole 4, it penetrates because of the radial slits 9. The hole 4 can be easily elastically expanded to obtain a proper bonding force,
A stable snap action is exhibited over a long period of time.

In addition, on both side surfaces of the tip end side portion of each protruding piece 6, ..., Sliding recesses s ... of the thread 10 for sewing are formed. Further, when the tip end side portion of the protruding piece 6 ... Is sewn to the fabric 8, the protruding piece 6 ...
The tip of each slit 9 has a non-slip concave portion s so that the tip side of the slit 9 is not compressed by the thread 10 and the through hole 4 is not reduced in diameter.
It is stopped at the position inward. 11 is a space for sewing.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

Since the entire female fitting is made of synthetic resin, it can be mass-produced easily and inexpensively by extrusion molding, and rust does not occur when washing clothes.

Due to the openings formed between the radial protrusions and the radial slits formed in the central annular portion and each protrusion, sufficient flexibility and deformation can be obtained even if the material resin is relatively hard. Even if the protrusion of the male fitting is repeatedly fitted and removed, the through hole of the central annular portion does not expand.

Therefore, a stable snap action is exhibited over a long period of time.

The radial protruding piece located inside the outer annular portion is configured to be sewn to the fabric, and the surface of the protruding piece is lower than the surface of the surrounding outer annular portion. The thread is not exposed on the side surface or the surface of the outer annular portion, and there is no risk of being caught by another object. Therefore, the thread in which the female fitting body is sewn on the cloth does not catch on another object and cause an unexpected thread breakage.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a plan view of a female fitting body of a snap fastener, FIG. 2 is a perspective view of the female fitting body and a male fitting body to be fitted into and removed from the female fitting body, FIG. 3 is a sectional view of the female fitting body and the male fitting body in a coupled state. FIG. 4 is a perspective view showing a conventional example. 1 ... Female fitting, 4 ... Through hole, 5 ... Central annular part, 6 ... Projecting piece, 7 ... Outer annular part, 9 ... Slit.

Claims (1)

[Scope of utility model registration request] 1. A central annular portion having a through hole into which a protrusion of a female fitting body is fitted so that it can be fitted and removed freely, and four projecting pieces radially protruding outward from the central annular portion, An outer annular portion connecting the tips of the projecting pieces is integrally molded with a synthetic resin material, and the surface of the projecting pieces is made lower than the surface of the surrounding outer annular portion so that the projecting pieces are sewn to the cloth In addition, the female fitting of the snap fastener is characterized in that the central annular portion and each projecting piece are formed with radial slits continuous with the through hole.