JPH06346638A - Fence and manufacture thereof - Google Patents

Abstract

PURPOSE:To enable shop production by a simple process and also to make it possible to produce a fence for use on an inclined land in a simple manner at a shop by passing a bar steel through a through hole at a flat portion of a bar steel forming a first bar to form a grid-like network and connecting the end of each of the bar steels to a frame. CONSTITUTION:A grid-like network is formed from a plurality of bar steels 1 which are first bars in which through holes 3 are provided through flat portions 2 at certain intervals and bar steels 4 which are second bars passed through the through holes 3 of the bar steels 1. And the ends of both of the bar steels 1, 4 are fixed to a frame 5a or the like. As a result, shop production can be easily performed and there are no differences in the appearances between the front side and the rear side thereby providing good external appearances, and welding is not needed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fence which surrounds the outer circumference of a house or the like, and more particularly to a wire mesh fence.

[0002]

2. Description of the Related Art Various fences for houses are known. For example, there is one in which round bars are stacked in a grid pattern and the overlapping portions are welded. Aluminum is often used as the round bar. The outline of the manufacturing process of this is as follows. First, round bars are stacked and fixed by a jig or the like, and the intersections are welded to each other. Furthermore, after fixing the frame to the outer periphery, painting is performed. Assembly like this
The painting work can be done on site, but it is prefabricated and painted or surface-treated as a standard product at the factory.

However, in the conventional manufacturing of such a fence, spot welding of aluminum or the like is difficult, and there are many welding points, which requires a lot of man-hours. In addition, the standard product could not be used and had to be made as a custom-made product because the slope angle was different for installing it on a slope.

[0004]

The present invention has been made under the technical background as described above, and achieves the following objects.

An object of the present invention is to provide a method for manufacturing a fence that can be factory-manufactured by a simple process.

Another object of the present invention is to provide a fence which can be easily manufactured in a factory even for sloped ground.

[0007]

[Means for Solving the Problems] To solve the above problems, the following means are adopted.

The fence of the present invention comprises a plurality of round bars (1) having flat portions (2) at regular intervals and having through holes (3) formed in the flat portions (2) to form a first streak. A round bar (4) passing through the respective through holes (3) of the plurality of round bars (1) forming the first streak and forming a second streak, and a round bar forming the first streak. A frame (5) connected to each end of the rod (1) and the round rod (4) forming the second streak.
a, 5b, 5c).

Further, the manufacturing process of the fence of the present invention is as follows.
A step of pressing round bars at regular intervals to form flat portions (2) on the round bars, a punching step of punching the flat portions (2) to form through holes (3), and the punching step And a plurality of round bars (1) for forming the first streak by arranging a plurality of round bars (1) that are opened by ) Through a plurality of other round bars (4) in parallel through the through hole (3)
Second muscle forming step of forming the first muscle, and the first muscle and the second muscle
A frame (5
a, 5b, 5c) and the step of joining the ends of the first and second streaks.

[0010]

In the fence manufacturing method of the present invention, when the round bar 4 forming the first streak is passed through the through hole 3 of the flat portion 2 of the round bar 1 forming the first streak, the lattice stitches are formed. it can. The ends of both round bars are joined by a frame 5, and the fence is mechanically solid.

[0011]

【Example】

(First Embodiment of Fence) Next, an embodiment of the present invention will be described. FIG. 1 is a front view showing a main part of a fence according to a first embodiment of the present invention. Aluminum round bar 1 forming the first streak
A large number of flat portions 2 are provided at regular intervals. The round bar forming the first line is hereinafter referred to as a vertical bar. This flat portion 2 is
As shown in FIG. 2, the length of the width is larger than the diameter length of the round bar 1. Further, as shown in FIGS. 3 and 4, the thickness of the flat portion 2 is smaller than the diameter length of the round bar 1. The flat portion 2 has a through hole 3 penetrating therethrough in a direction orthogonal to the flat surface. The diameter of the through hole 3 is slightly smaller than the diameter of the aluminum round bar 4 forming the second streak. The round bar forming the second line is hereinafter referred to as a horizontal bar.

(Example 1 of fence manufacturing process)
The manufacturing process of Example 1 of the fence will be described. The round bar material is taken up from the take-up roll by a take-up roll and compression-molded at regular intervals by a press. As the upper and lower molds for compression molding, those whose pressing surfaces are parallel to each other are used. With such a mold, the flat portion 2 shown in FIG. 2 is formed. The through hole 3 is made in the flat surface in the next punching step. The mold used in this step operates in the same direction as the upper and lower molds in the pressing step. With such a punching die, a through hole 3 penetrating in a direction orthogonal to the flat surface of the flat portion 2 is made.

By synchronizing the feed of the material of the round bar and the operation intervals of both molds, the bar material having the flat portions 2 with holes formed at regular intervals is wound up on the winding roll as an intermediate product. According to an order or in a planned manner, the intermediate product is pulled out from the winding roll and cut into a predetermined size to produce the vertical bar 1. Similarly, a bar having no flat portion is cut into a predetermined size to produce a horizontal bar.

Next, the vertical bars are arranged so as not to move a predetermined number. In this case, a jig is used to arrange them in parallel at regular intervals. The flat portions 2 of the plurality of vertical bars arranged in this way are arranged in a straight line. In this way, the horizontal bars are sequentially passed through the through holes 3 of the flat portions 2 arranged in a straight line from the end. In this case, if the flat surface of the flat portion 2 is orthogonal to the path of the horizontal rod 4, the vertical rod 1 will smoothly pass through the through hole 3. If the flat surface of the flat portion 2 is not orthogonal to the path of the horizontal rod 4, the horizontal rod 4 does not smoothly pass through the through hole 3. In this case, force it through. When forced in this way, the vertical bar 1 is twisted and the horizontal bar 4 is wavy. The angle of the flat surface of the vertical bar before passing the horizontal bar is a variable value in the fence design based on the material and diameter of the vertical bar 1 and the horizontal bar 4.

The lattice-shaped wire net twisted and wavy in the assembling step maintains its shape almost even after the jig is removed. Then, around such a wire mesh, sometimes 4
The frame 5 is connected to the circumference, sometimes to three times, and sometimes to two opposite times. For this connection, various known means such as welding or adhesion with a metal adhesive is applied.

FIGS. 5, 6 and 7 show modified examples of the frame 5. FIG. 5 shows a pipe-shaped frame 5a in which insertion portions 6 for inserting the ends of the vertical bars 1 are attached at regular intervals. In this case, the insertion part 6 and the end of the vertical bar 1 are spot-welded. FIG. 6 shows a round bar-shaped frame 5b. In this case, the ring 7 formed at the end of the vertical bar 1 is fitted into the frame 5b, the ring 7 is contracted, and the ring 7 is fastened to the frame 5b. Weld after tightening. The frame 5c shown in FIG. 7 is the same as the frame 5a shown in FIG. 5 except that the shape is changed. If the ring 7 to be fastened to the frame 5b shown in FIG. 6 is twisted with respect to the main part of the vertical bar,
The twist angle of the flat portion 2 with respect to the horizontal bar can be adjusted in advance.

(Other Embodiments of Fence) The grid of the wire mesh shown in FIG. 1 is rectangular, but if the wire mesh is twisted without the frame attached, the grid is easily deformed. A parallelogram fence is formed by connecting a four-circle frame (not shown) formed in substantially the same shape as a parallelogram that is not rectangular or square to four-fold.

When the rectangular fence manufactured in the factory is transported to the site and assembled, the fence can be assembled on a sloping ground as shown in FIG.

(Other Design Changes) The present invention is not limited to the above embodiments, and design changes are made within the scope of the gist of the present invention.

For example, although the vertical and horizontal round rods are made of an aluminum material which is difficult to weld, the fence of the present invention is not limited to aluminum, and various metals such as stainless steel can be used. Such a round bar is not limited to a solid bar, and a pipe can be used. Further, although the manufacturing process is described as being performed in the factory, the same process can be performed locally. Although the jig used in the manufacturing process is specially prepared, when the frame is used as the jig, the jig itself becomes a part of the product.

[0021]

According to the present invention, the following effects are exhibited. Factory production is easy. According to the method of assembling the fence of the present invention, there is no front and back, and the appearance is good. Also, since it is passed through the hole, it has high strength and does not require welding. Therefore, it is possible to omit the conventional process of performing a surface treatment such as painting after welding, and it is possible to achieve uniform products. Furthermore, fences for sloping lands can also be factory produced.

[Brief description of drawings]

FIG. 1 is a first embodiment of the fence of the present invention according to the present invention.
It is a front view which shows the waist part.

FIG. 2 is a front view showing a part of a round bar forming a first streak.

FIG. 3 is a side view of FIG.

FIG. 4 is a partial cross-sectional view of FIG.

FIG. 5 is a side view showing an embodiment of a frame.

FIG. 6 is a side view showing another embodiment of the frame.

FIG. 7 shows yet another embodiment of a frame,
It is a side view.

FIG. 8 is a perspective view showing another embodiment of the fence.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Round bar which forms the 1st line 2 ... Flat part 3 ... Through hole 4 ... Round bar which forms the 2nd line 5a, 5b, 5c ... Frame

Claims (2)

[Claims] 1. A plurality of round bars (1) each having a flat portion (2) at regular intervals and having a through hole (3) formed in the flat portion (2) to form a first streak, the first rod. A round bar (4) which is passed through the respective through holes (3) of a plurality of round bars (1) forming a streak and forms a second streak, and a round bar (1) which forms the first streak And a frame (5a, 5b, 5c) coupled to each end of the round bar (4) forming the second streak, the fence. 2. A step of pressing round bars at regular intervals to provide flat portions (2) on the round bars at regular intervals, and a punching step of punching out the flat portions (2) to form through holes (3). And a first streak forming step of forming a first streak by arranging a plurality of round bars (1) opened and adjusted in length by the punching step in parallel, and a plurality of first streak forming steps A second streak forming step of forming a second streak by passing a plurality of other round bars (4) in parallel through the through holes (3) of the round bar (1); the first streak and the second streak And a frame (5a, 5b, 5c) surrounding the surface formed in (4) in the shape of a parallelogram, and a step of connecting the ends of the first and second streaks.