JPH0453453Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a fastening member, and more particularly to a bar member used in combination with a rivet member.

[Description of prior art]

2. Description of the Related Art Fastening members that combine rivets and bar members have conventionally been used to fasten jeans, etc. FIG. 1 illustrates a situation in which such a fastening member consisting of a rivet member 10 and a bar member 12 is attached to a fabric 14. When installing,
The mounting die 8 with the bar member 12 attached is lowered and the leg 16 of the rivet member 10 pierces the fabric 14 and then the central projection 18 of the bar member 12. Both parts are then subsequently pressed together such that the leg 16 of the rivet member 10 bulges inside the central protrusion 18 while the inner periphery 20 of the bar member 12 and the inner periphery of the rivet member 10 bulge out. The portion 22 is pressed against the fabric 14 and the attachment is completed. FIGS. 2A to 2C show the rivets/
Various mounting configurations of the bar members are shown.

However, since conventional bar members are generally manufactured from thin metal members by press working, designs on the front side are relatively limited, and complex designs and deeply carved patterns are formed on the front side. It is difficult or impossible to do so. For this reason, a bar member 12' as shown in FIG. 3, which has a thick wall portion 24 on the surface side that enables such patterning, was cast by die casting or the like. The axial hole 26 for this purpose is necessarily provided with a taper 28 for die cutting, and therefore the locking force of the legs of the rivet member in the axial hole 26 is weak, and as a result, the fabric of both members is The mounting force was not sufficient.

[Purpose of invention]

The purpose of the present invention is to resist bar members that can form diverse designs and deep patterns on their surfaces.

Another object of the present invention is to provide a bar member that is made from die casting and that can exert sufficient attachment force after attachment to fabric.

[Summary of the idea]

According to the present invention, the bar member is used in combination with a rivet member having a leg portion, and the leg portion of the rivet member is inserted into the central portion of the bar member that protrudes toward the side corresponding to the rivet member. and a radial hole that radially penetrates the central portion and intersects with the axial hole, and a peripheral portion for pressing the dough. A bar member is provided comprising a surface portion and a bar member configured in such a manner that the above object is achieved.

[Explanation of Examples]

The present invention will be explained in detail below with reference to FIGS. 4 to 6. FIG. 4 is a plan view of the bar member 30 of the present invention. The bar member 30 of the present invention is preferably produced by die casting, and as shown in the figure, includes a thick flange portion 32 that presses the dough 14 (see FIG. 6), and a thick flange portion 32 that presses against the dough 14 (see FIG. 6), and a direction from the center of the flange portion 32 toward the dough. That is, it has a central portion 36 that projects a predetermined length on the side facing the rivet member 10. The central protrusion 36 is further provided with an axial hole 38 as shown in FIGS.
and a radial hole 40 intersecting the axial hole 38 are molded. The flange portion generally includes:
Various designs are provided, as indicated by reference numeral 42. Each of the holes can be formed to have a constant inner diameter, so there is no need to provide a draft angle for mold removal (see Figure 3), which was indispensable in conventional die-cast products. None. However, the present invention would rather include such a taper to facilitate insertion of the tip 44 of the leg 16 of the rivet member 10 into the axial hole 38. The bar member 30 of the present invention can also be made particularly thick on a portion of its surface side, as indicated by the reference numeral 34, and can also be provided with a deeply carved pattern 42' along with said flange portion 32. It is.

A state in which the bar member 30 and the rivet member 10 are connected is shown in FIG. The rivet member 10 may be the same as conventionally used. When attaching both members to the fabric 14, first attach the rivet member 1.
The leg portion 16 of 0 pierces the fabric 14, and then the tip end of the leg portion 16 fits into the axial hole 38 of the bar member 30.
The rivet member 10 and the bar member 30 are continuously pressed toward each other with the fabric 14 in between, so that the tip end 44 of the leg portion 16 of the rivet member abuts against the upper surface of the axial hole 38 and deforms, and at the same time bulges into the radial hole 40, thereby causing the seventh
A diagram state is provided. Since the radial hole 40 is formed radially through the central protrusion 36 as described above, the tip end portion 44 of the leg can freely bulge out in the longitudinal direction of the radial hole 40, and Therefore, sufficient attachment strength can be exerted after both members are attached to the fabric.

Although the invention has been described with reference to specific examples, it should be remembered that many modifications may be made thereto.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing how a conventional rivet/bar member is attached. FIG. 2A is a cross-sectional view showing various attachment methods for conventional rivet/bar members. FIG. 2B is a cross-sectional view showing various attachment methods for conventional rivet/bar members. FIG. 2C is a cross-sectional view showing various attachment methods for conventional rivet/bar members. FIG. 3 is a sectional view of a conventional die-cast molded bar member. FIG. 4 is a plan view of the bar member of the present invention. FIG. 5 is a cross-sectional view of FIG. 1 taken along line 5--5. FIG. 6 is a cross-sectional view of FIG. 1 taken along line 6--6. Figure 7 shows
FIG. 2 is a cross-sectional view showing the bar member of the present invention used in combination with a conventional rivet member. The names of the main parts in the figure are as follows.
32...Flange part, 36...Central protrusion part, 38
... Axial hole, 40 ... Radial hole, 44 ... Tip.

Claims (1)

[Claims for Utility Model Registration] 1. A bar member used in combination with a rivet member having leg portions, wherein the center portion protrudes toward the side corresponding to the rivet member, and the leg portion of the rivet member a central portion having an axial hole for inserting the cloth, a radial hole extending radially through the central portion and intersecting the axial hole, and a peripheral portion for pressing the fabric. A bar member consisting of a thick surface part. 2. The bar member according to claim 1 of the utility model, wherein the bar member is made of die cast.