JPH108778A - Joint for fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for a nut to tighten a presser metal, which is pressed against a furring strip. SOLUTION: There are provided a joint pipe, one end of which is bolted to a post 10, and the other end 9B of which is inserted into an end of a furring strip 3, a presser metal which is pressed against an end of the strip 3 into which the joint pipe is inserted, a tightening bolt 13 for tightening the presser metal, to fix an end of the strip 3 to the joint pipe, and a threaded hole for the bolt 13 formed in the joint pipe. In this case, screw threads of the bolt 13 are formed of buttless threads, and in the threaded hole, a part of the joint pipe is blanked out to form a plurality of engaging pieces, in a radial form, in the joint pipe, and the pieces are bent to the side of the center axis of the joint pipe so that the ends of the pieces engage with the surfaces of the screw threads on the head side of the bolt 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for a fence, and more particularly to a joint for a fence that does not require a nut to tighten a holding metal fitting applied to a rim.

[0002]

2. Description of the Related Art As shown in FIG. 9, upper and lower ends of a sheet metal mesh formed of horizontal lines 1 and vertical lines 2 joined in a lattice by welding are bent into a ring shape to form a body edge 3. A fence joint for fixing the fence wire net 4 to the column 5 is disclosed in Japanese Utility Model Publication No. 60-6524. Hereinafter, this joint is referred to as a conventional joint.

A conventional joint will be described with reference to the drawings.
FIG. 10 is a perspective view showing a conventional joint. As shown in FIG. 10, the conventional joint has a curved portion 6 </ b> A
And a pair of joint fittings 6 formed on both sides of the curved portion 6A and formed into a semi-cylindrical joint body 6B inserted into the body rim 3, and the joint body 6B is applied to each joint body 6B via the body rim 3. A holding metal fitting 7 to be tightened and a tightening bolt 8 for fastening the opposed holding metal fitting 7 to fix the body edge 3 to the joint body 6B.
It consists of

In order to fix the wire netting 4 for fence to the column 5 by the conventional joint having the above-described structure, the following is performed. First, a pair of joint fittings 6 are bolted to the column 5 with the fittings 6 facing each other. Next, the joint main body 6 </ b> B assembled in a pipe shape is inserted into the end of the trunk 3 of the wire mesh 4. Then, the holding metal members 7 are applied to the body edge 3, and the holding metal members 7 are fastened to each other by the fastening bolts 8. Thus, the wire netting 4 is fixed to the column 5 via the joint fitting 6.

[0005]

However, in the conventional joint described above, it is necessary to pass the tightening bolt 8 to the opposite holding metal fitting 7 to tighten the holding metal fitting 7 and tighten each with a nut (not shown). Therefore, there was a problem that it took time and labor for construction.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a joint for a fence which can reduce the time required for assembling a fence by eliminating the need for a nut for tightening a holding member.

[0007]

According to the first aspect of the present invention,
A fence wire mesh formed by bending the upper and lower ends of a sheet wire mesh formed of a horizontal line and a vertical line joined in a lattice shape into a ring shape to form a body edge, a fence joint for fixing to a support, Part is bolted to the column, the other end is inserted into the end of the body edge, a fitting metal fitting to the body edge into which the fitting pipe is inserted, and the holding metal fitting is tightened. And a tightening bolt for fixing the end of the body edge to the joint pipe, and a screw hole of the tightening bolt formed in the joint pipe, and a thread of the tightening bolt is formed by a saw tooth screw. The screw hole is formed by punching a part of the joint pipe, forming a plurality of engagement pieces in the joint pipe radially, and forming the engagement piece with a tip end of the fastening bolt. To engage the threads face, and it has the characteristics to be comprised of those bent to the central axis side of the joint pipe.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a joint for a fence according to the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing a state where the body edge is fixed by the joint for fence of the present invention, FIG. 2 is a front view showing a state where the body edge is fixed by the joint for fence of the present invention, and FIG. FIG. 4 is a side view showing a state in which the trunk edge is fixed by the joint for fence of the present invention. FIG. 4 is a front view showing a fastening bolt in the joint for fence of the present invention.
Is a plan view showing a threaded hole formed in a joint pipe in the joint for fences of the present invention, FIG. 6 is a front view showing a state before fixing the trunk edge by the joint for fences of the present invention, and FIG. FIG. 8 is a front view showing a state before fixing the trunk edge by the joint for fence of the present invention, and FIG. 8 is a side view showing a state before fixing the trunk edge by the joint for fence of the present invention.

1 to 8, reference numeral 9 denotes a joint pipe. One end 9 </ b> A of the joint pipe 9 is applied to the side surface of the column 10 and can be fixed by the bolt 11.
It is formed in a curved plate shape. The other end 9 </ b> B of the joint pipe 9 is formed in a cylindrical shape, and has a body edge 3 of the fence wire mesh 4.
Is inserted into the end. The joint pipe 9 is formed with a screw hole 9C for a tightening bolt described later. Screw hole 9C
As shown in FIG. 5, a part of the joint pipe 9 is punched out to form a plurality of engagement pieces 9D radially,
Is bent toward the center axis side of the joint pipe 9 so that its tip engages a thread surface on the head side of a tightening bolt described later.

As in the case of the above-described wire mesh, the fence wire mesh 4 forms the body edge 3 by bending the upper and lower ends of a sheet wire mesh composed of horizontal lines 1 and vertical lines 2 joined in a grid by welding in a ring shape. It consists of what you did.

Reference numeral 12 denotes a body edge 3 into which the joint pipe 9 is inserted.
It is a holding metal fitting applied to the end of. Holding bracket 1
Hooks 12A that engage with the vertical line 2 of the waist edge 3
Are formed. A through hole 12 </ b> B for a tightening bolt, which will be described later, is formed in the center of the holding member 12.

Reference numeral 13 denotes a tightening bolt for tightening the holding member 12 to fix the end of the rim 3 to the joint pipe 9. As shown in FIG. 4, the screw thread of the tightening bolt 13 is formed by a saw-tooth screw whose screw thread has a cross-sectional shape close to a right-angled triangle, and is engaged when the tightening bolt 13 is tightened. The tip of the piece 9D is adapted to easily engage with the thread surface (A) on the head side of the tightening bolt 13.

With the fence joint of the present invention configured as described above, the fence wire netting 4 is
In order to fix the two joint pipes 9 on both sides of the support post 10 with one bolt 11,
At the same time. Next, the other end of the joint pipe 9 is inserted into the body edge 3. Then, the holding fitting 12 is applied to the end of the body edge 3, and the tightening bolt 13 is screwed into the screw hole 9C of the joint pipe 9 through the insertion hole 12B of the holding fitting 12. Since the tip of the engaging piece 9D forming the screw hole 9C engages with the thread surface on the head side of the tightening bolt 13, the engaging piece 9D substitutes for a nut. Then, the holding metal fittings 12 are tightened, so that the fence wire mesh 4 is fixed to the column 10.

[0015]

As described above, according to the present invention, a part of a joint pipe is punched out, a plurality of engaging pieces are formed radially, and these engaging pieces are tightened at their tips. By bending the joint pipe toward the center axis side of the joint pipe so as to engage with the thread surface on the head side of the bolt, the nut of the tightening bolt becomes unnecessary. Therefore, a useful effect that the time required for assembling the fence can be reduced can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state where a body edge is fixed by a joint for fence of the present invention.

FIG. 2 is a front view showing a state in which a body edge is fixed by the fence joint of the present invention.

FIG. 3 is a side view showing a state in which the body edge is fixed by the joint for fence of the present invention.

FIG. 4 is a front view showing a fastening bolt in the fence joint of the present invention.

FIG. 5 is a plan view showing a screw hole formed in a joint pipe in the joint for fences of the present invention.

FIG. 6 is a front view showing a state before the trunk edge is fixed by the joint for fences of the present invention.

FIG. 7 is a front view showing a state before the trunk edge is fixed by the fence joint of the present invention.

FIG. 8 is a side view showing a state before the trunk edge is fixed by the joint for fences of the present invention.

FIG. 9 is a partial perspective view showing a fence.

FIG. 10 is a perspective view showing a conventional joint.

[Explanation of symbols]

 1: Horizontal line 2: Vertical line 3: Trunk edge 4: Wire mesh 5: Strut 6: Joint fitting 6A: Curved portion 6B: Joint body 7: Holding fixture 8: Tightening bolt 9: Joint pipe 9A: One end 9B: Other end Part 9C: Screw hole 9D: Engagement piece 10: Post 11: Bolt 12: Holder 12A: Hook 12B: Insertion hole 13: Tightening bolt

Claims (1)

[Claims] 1. A fence for fixing a fence wire mesh formed by bending the upper and lower ends of a sheet wire mesh formed of horizontal and vertical lines joined in a lattice shape into a ring shape to form a body edge, to a column. In the joint for use, one end is bolted to the column, the other end is inserted into the end of the body edge of the joint pipe, and a press fitting that is applied to the body edge into which the joint pipe is inserted, It consists of a tightening bolt for tightening the holding bracket and fixing the end of the body edge to the joint pipe, and a screw hole of the tightening bolt formed in the joint pipe, and a screw thread of the tightening bolt is , Constituted by a saw-tooth screw, the screw hole is formed by punching out a part of the joint pipe, forming a plurality of engagement pieces in the joint pipe radially, the tip end of the engagement piece, Tightening To engage the threads face of the head side of the bolt, fence fittings, characterized in that it consists of those bent to the central axis side of the joint pipe.