JPS63260501A - Inlay body of slide fastener - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a technique for improving a fitting body constituting a step fastener.

[Conventional technology]

As a fitting body of such a snap fastener, a metal eyelet member 1 having a flange-like portion 4 extending radially outward from one end of a cylindrical portion 3 is used, as shown in a female type in FIG. The attachment of one end of the cylindrical portion of the cylindrical portion is such that the root side thereof is fitted into a raised portion 7 connected to the center of the back surface of the decorative member 2 made of synthetic resin, and the brim portion 4 is attached to the back surface of the decorative member 2. Deforming the peripheral portion 6a of the decorative member 2 inward in the radial direction so as to bring the decorative member 2 into close contact and lock the brim portion 4,
A hole a smaller than the inner diameter of the cylindrical portion 3 is provided in the center of the fastener fitting member A made of synthetic resin, so that the rivet member A1 and the fitting member A configuration in which the cylindrical portion 3 is formed in the center of the sheet C interposed between the sheet C and the fitting member A, and the tip of the cylindrical portion 3 is caulked outward in the radial direction. In the fitting body A having the above-described structure, before the tip of the cylindrical portion 3 of the eyelet member 1 is caulked, the cylindrical portion 3 forms the center portion of the fitting member ^2 and the fitting member Penetrate A,
In addition, since the protrusion 7 of the decorative member 2 is fitted into the base of the cylindrical portion 3, a hole for penetrating the cylindrical portion is previously formed in the center of the fitting member A2. Furthermore, compared to the previous structure in which the raised portion 7 is not provided on the decorative member 2, in this conventional structure, the base side of the cylindrical portion 3 is in a free state. When the cylindrical portion 3 receives an impact force for caulking, the free state of the cylindrical portion 3 buckles in such a way that the root portion contracts inward, causing the tip of the cylindrical portion to buckle. However, the cylindrical portion 3 is fitted with the raised portion 7 on the root side, which increases the anti-buckling strength of the cylindrical portion 3. The caulking is done well as specified.

Rather than simply forming the cylindrical portion 3 in the fitting member A2, a hole a smaller than the cylindrical portion 3 is provided in the center of the fitting member A2, and the hole a is Since the cylindrical portion 3 is formed around the cylindrical portion 3, the fitting member A2 is prevented from cracking or being damaged when the cylindrical portion 3 is formed (although the phenomenon is unknown, there are various This has been confirmed by the experimental results of 2007, and it is thought that this is due to the fact that the formation of the hole a weakens the force around the part a, making it easier to cut the core part. ), and moreover, when the cylindrical portion 3 actually penetrates the fitting member A2, the cylindrical portion 3
Since the fitting member penetrating portion of A2 is firmly held by the fitting member ^2, compared to the case where a hole is previously provided in the center of the fitting member A2 as in the previous configuration described above, The rivet member A1 and the fitting member A8 can be integrated without any backlash, and both can be integrated ^1. We can expect high adhesion strength of A2.

[Problem that the invention seeks to solve]

However, in order to prevent buckling of the cylindrical portion 3 and to achieve strong integration with the fitting member 2 and the decorative member 2, the cylindrical portion 3 is connected to the fitting member A! As a result, cutting debris (hereinafter referred to as the center actual open cut portion) is generated from the center of the fitting member A2 where the cylindrical portion 3 is actually present, and this is scattered around the crimping machine. This may cause a malfunction of the crimping machine or interfere with the crimping work, or the cylindrical portion 3 may
Even if it is inserted into the inside of the mating body A, it will eventually fall out from the mating body A, and although this central open cut part is completely unnecessary in the construction of the mating body, it is not necessary for the user. Then, when removing this center actual open cut part, it will be removed from the mating body A.
It was an extremely troublesome item, causing unnecessary worry if it led to a decrease in the strength or loss of function.

The present invention aims to achieve rational disposal of such troublesome substitutes.

[Means for solving problems]

In order to achieve the above object, the present invention provides a fitted body of the conventional snap fastener as described above, in which a small diameter is provided at the center of the tip of the raised portion of the decorative member. A protrusion approximately equal to the diameter of the hole at the center of the fitting member is provided in a row so that the center hole of the center actual open cut portion of the fitting member is fitted and held on the base side of the protrusion due to the actual state of the cylindrical portion. The points are distinctive.

[Effect]

According to the above-mentioned characteristic structure, while making full use of all the advantages of the snap fastener fitting body in the conventional structure, by holding the center real-opening cut part inside the cylindrical part, the center real-opening cut part is held inside the cylindrical part, so that the center real-opening cut part is held inside the cylindrical part, so Ordering of cut parts or cutting waste is prevented.

Moreover, the central open cut portion that is in close contact with the inner surface of the cylindrical portion is fitted and held by the protrusion and becomes integrated with the protrusion, so that the protrusion becomes substantially taller and extends. In this case, the central solid cut serves to increase the buckling strength of the cylindrical part, ie the waste material is utilized to achieve buckling reinforcement of the cylindrical part.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

Figure 4 shows female and male fittings A and B according to the present invention.
In the figure, A, B are rivet members for fasteners, A2 is a female fitting member for fasteners made of synthetic resin, and B2 is a male fitting member for fasteners made of synthetic resin. The member C is a sheet of clothing or the like.

Both of the fastener rivet members AI+L have the same construction, and as shown in FIGS. 1 and 2, they consist of an eyelet member 1 made of metal and a decorative member 2 made of synthetic resin.

One eyelet member 1 includes a flange-shaped portion 4 extending radially outward from one end of a cylindrical portion 3, and a portion of the corner between the cylindrical portion 3 and the flange-shaped portion 4 has an appropriate curvature. It is formed into a curved surface portion 5.

The other decorative member 2 includes a disk-shaped portion 6 that covers the flange-shaped portion 4 of the eyelet member 1 with the flange-shaped portion 4 in close contact with the back surface thereof.
The outer circumferential portion of the brim portion 4 is held in place by plastically deforming the circumferential portion 6a inward in the radial direction by impact.

At the center of the back surface of the disk-shaped portion 6, there is a bulge having a height of about 174 in the axial direction of the cylindrical portion 3 (specifically, about the same height as the stripes of the plastically deformed peripheral portion 6a). A portion 7 is integrally formed, and furthermore, at the center of the tip of the raised portion 7, the total height with the raised portion 7 is 27 mm of the cylindrical portion 3.
A series of protrusions 8 having a sharp tip and a height of about 3 mm are provided, and the protrusion 7 of these protrusions is tightly fitted inside one end of the cylindrical portion 3. On the other hand, a part of the corner of the disk-shaped portion 6 and the raised portion 7 is formed into a curved portion that comes into close contact with the curved portion 5 of the eyelet member I.

Each of the female and male fitting members At, i+ has a disc-shaped portion 9 corresponding to the collar portion 4, and the details will be explained in the following, taking the female fitting member At as an example. As shown in FIGS. 1 and 2, in the center there is a diameter that is the same as or slightly smaller than the maximum outer diameter of the protrusion 8, which is the inner diameter of the cylindrical portion 3. is smaller than

) is formed, and a central portion 9a around the core portion a is formed thin.

Then, as shown in FIGS. 1 and 2, the sheet C is positioned between the rivet member A and the fitting member A2, and the rivet member 8 is relatively driven into the fitting member A8. and,
The cylindrical portion 3 of the rivet member A10 is attached to the sheet C and the thin central portion 9a of the fitting member 1h, and the cylindrical portion 3 cuts the sheet C and the central portion 9a, and the cut donut The central open cut portion of the shape is tightly pushed into the inside of the cylindrical portion 3 by the driving force, and at the same time, the central hole a of the center open cut portion is tightly fitted into the base side of the protrusion 8. At the same time, the tip of the protrusion 8 is crushed and the tip of the cylindrical portion 3 is pushed outward in the radial direction, thereby caulking the fitting member A8 to the rivet member A1. A female-type fitted body A is produced. The 1i1 type fitted body B is also manufactured in the same manner.

According to this configuration, the center portions 9a of the fitting members At, Bt are thin and fragile, and the center portions 9a are thin and fragile.
Since the hole a is provided in the center of the cylindrical portion 3, the central open cut portion can be easily cut from the central portion 9a without causing any cracks in the central portion 9a.

By fitting and holding the central open cut portion into the protrusion 8, the height of the raised portion 7 is substantially increased, and the attachment of the cylindrical portion 3 is tightly placed inside the root portion. Because it is fitted, when the tip of the cylindrical portion 3 is struck and caulked, the attachment of the cylindrical portion 3 can effectively prevent the root portion from buckling inward, and this The center actual open cut portion will not fall off when removed from the fitted bodies A and B.

In addition, a part of the corner between the cylindrical portion 3 and the brim portion 4 in the eyelet member l, as well as the fitting members At and Bi
Since some of the corners of the disc-shaped portion 6 and the raised portion 7 are formed into curved surfaces that are in close contact with each other, the impact force applied to the tip of the cylindrical portion 3 is directed in the surface direction of the brim-shaped portion 4. Since the impact force is well distributed, that is, the impact force is concentrated on a portion of the corner, it is possible to prevent the surface of the cylindrical portion 3 from protruding into an annular shape.

In addition, in order to prevent the impact force from being concentrated on a part of the corner, a part of the corner is curved, and the central part 9
The configuration in which a is made thin so that the core portion is a little less than 111 mm, and the height settings of the protrusion 7 and the protrusion 8 are not essential requirements of the present invention, and these can be set as appropriate in the design. It is something.

[Effects of the Invention] As explained above, the present invention provides a method for attaching a cylindrical portion by providing a protrusion on the protrusion to prevent the root from coming into contact with the cylindrical portion, so that the rivet member is fitted into the fitting body when the rivet member is caulked. The present invention is characterized in that the central actual cut portion generated from the member is fitted and held by the projection.

By fitting the central actual cut portion into the protrusion and holding it inside the cylindrical portion, generation of so-called cutting debris is prevented, and as a result, the central actual cut portion becomes a hindrance to the crimping work. In addition, since the central actual cut portion will not fall off when pulled out, the central actual cut portion will not fall off, which may lead to reduced strength or loss of function. There is no unnecessary worry for the user.

Furthermore, the central actual cut portion is integrated with the raised portion, and the attachment of the cylindrical portion is fitted into the inner surface of the root side,
The center cut portion now functions as a reinforcing member that increases the buckling strength of the cylindrical portion. In other words, the center cut portion, which used to be a troublesome waste material, can be effectively used. , it was possible to achieve reinforcement against the pressure of the cylindrical part, and as a whole, by simply providing a protrusion in series with the protrusion, this was a very F, l, but reasonable improvement, compared to the conventional structure described at the beginning. While utilizing all the advantages of the snap fastener fitting, it has been possible to successfully eliminate the drawbacks of the conventional structure.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, FIG. 1 is a sectional view showing the rivet member and the female fitting member before crimping, and FIG. 2 shows the rivet member in the crimped state. FIG. FIG. 3 is a partially cutaway perspective view of the female fitting, and FIG. 4 is a sectional view of the snap fastener fitted with a pair of male and female fittings. FIG. 5 is a sectional view showing a conventional female fitting body. DESCRIPTION OF SYMBOLS 1... Eyelet member, 2... Decorative member, 3... Cylindrical part, 4... Flange-shaped part, 7... Protrusion part, 8... Protrusion, a... Central hole, 81. B1... Rivet member,
Ax, Bt...fitting member, C...sheet.

Claims (1)

[Claims] A metal eyelet member having a flange-like part extending radially outward from one end of the cylindrical part is connected to a raised part connected to the center of the back surface of the decorative member made of synthetic resin. At the same time as fitting, the rim of the decorative member is deformed inward in the radial direction so as to bring the flange-shaped portion into close contact with the back surface of the decorative member and to lock the flange-shaped portion, thereby forming a fastener rivet. A sheet which is interposed between the rivet member and the fitting member by providing a hole smaller than the inner diameter of the cylindrical portion in the center of the fitting member for the fastener made of synthetic resin; A fitted body of a snap fastener, in which the cylindrical portion is inserted into the center portion of the fitting member, and the tip of the cylindrical portion is caulked outward in the radial direction, wherein At least the protrusion on the base side has a maximum outer diameter and the outer diameter is approximately equal to the diameter of the central hole of the fitting member, and the center of the central piercing cut portion of the fitting member by the cylindrical portion is provided. A fitted body of a snap fastener, characterized in that a hole is fitted and held on the base side of the protrusion.