JPH0541163Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a fence equipped with C-shaped pillars.
Specifically, the present invention relates to a C-shaped fence that allows a net to be set up on the boundary line between a site and an adjacent road or another person's site.

[Conventional technology]

Commonly used fences are usually the first
As shown in Figure 8, a foundation formwork 32 is formed in a hole made in the ground within a site 31, and concrete 34 is placed around a support 33 with its legs inserted into the foundation formwork 32. be done. Horizontal beams, such as angle pieces 35 and 36, are laterally passed over the upper and lower parts of all the adjacent pillars 33 and 33,
A net 37 is fixed to the upper and lower angle members 35 and 36. The fence 30, in which the net 37 is stretched between the respective pillars 33, 33, three-dimensionally marks the boundary between the site 31 and the road 38, and prevents others from entering the site 31 inside from the boundary line 39. .

[The problem that the idea aims to solve]

By the way, in the fence 30 as described above, the foundation formwork 32 for fixing the pillars 33 is attached to the road 3.
It will be buried in the site 31 inside the boundary line 39 so as not to come out on the 8 side. In addition, in general commercially available fences, the net 37 is attached to the inside of the support post 33 so that the installation work can be carried out within the premises 31. Therefore, the net 37 will be set up within the site 31 at a considerable distance from the boundary line 39. The foundation formwork 32 and other types of foundations provided as necessary are at the boundary line 3.
Care must be taken not to exceed 9, so the dimensions must be secured for this purpose. Net 37 is at least 10cm from boundary line 39, even 0.3~
There is a problem that the usable area of the site 31 becomes narrower because it is 1 meter inside. Furthermore, the main purpose of fences, which is to indicate boundaries and boundary spaces, becomes obscured, which can lead to troubles surrounding boundaries, so improvements to the structure of fences are desired.

In addition, in the conventional fence specifications, horizontal beams 3
Since the lengths of the fences 5 and 36 are limited by the spacing between the supports 33 and 33, the unit of work for installing the net 37 becomes smaller, and it takes time and effort to assemble all the fences 30 in sequence, which hinders work efficiency. be.

Furthermore, if the fence has simple linear shapes such as the pillars 33 and the horizontal beams 35 and 36, the appearance of the streetscape will become uniform. Therefore, it is desired that there be a fence that can be made aesthetically pleasing and interesting.

By the way, Japanese Utility Model Application Publication No. 61-94070 describes an example in which a horizontal arm extending to one side is projected from a column member, and a net is stretched at the tip of the arm. According to this, even if the pillar member is located within the site, the net can be placed on the boundary line or the like.

However, since the net is located in a space away from the pillar member and is only fixed to the tip of the arm, there is a drawback that the net is easily deformed or loosened, resulting in an unsightly appearance.

For example, Japanese Utility Model Application Publication No. 52-26744 describes a fence in which rims are attached to the upper and lower ends of the net in order to maintain the tension of the net, and the rims are hooked directly to pillar members. According to this, by inserting the upper end or the lower end of the net through the opening at the end of the rim, the net can be stretched along the rim.

However, the net is only hooked by the rim, and no means is provided for fixing the net in the longitudinal direction, and therefore the net does not have sufficient surface retention properties. In addition, exposure of seams at the portions where the nets are connected is unavoidable, causing problems such as spoiling the appearance and causing surface misalignment at the seams. Seams also exist between the edges and are easily visible.

The present invention was developed in view of the above-mentioned problems, and its purpose is to make the boundary clearer by placing the fence net as close as possible to the boundary line of the site or on the boundary line. The nets can be easily and continuously assembled to all the pillars, streamlining the on-site assembly work of the fence, and the pillars supporting the nets are elegant.
In addition, even if the wire mesh is installed at a distance from the pillar, joints can be prevented or made inconspicuous, and the loosening of the tension of the wire mesh can be suppressed to improve the appearance of the wire mesh. The purpose is to provide a shaped fence.

[Means to solve the problem]

The C-shaped fence of the present invention is applied to a fence equipped with column members and horizontal beams for holding and fixing the net.

Its characteristics are as shown in Figure 1.
The upper part 2a of the column member 2 is bent into an arch shape and extends to one side, and the arm wood 2B attached to the lower part 2b of the column member 2 is made to extend in the same direction to form a substantially C shape. Openings 3a and 3b (see FIGS. 3 and 5) cut out in the longitudinal direction are formed in the tip of the upper part 2a of the column member 2 and the tip of the arm wood 2B located in the lower part 2b, respectively. Pipe-shaped horizontal beams 3 facing each other vertically
A and 3B extend in the upright direction so as to straddle the adjacent column members 2, 2, and are attached at the ends close to other horizontal beam members (see FIG. 2).

The net includes a net 4A that forms a mesh and is stretched in the direction in which the column member 2 is erected, and a pipe-shaped upper end attachment cross member 5A and a lower end attachment cross member 5B that lock the net 4A along the upper and lower edges. Member 4 is formed. On the other hand, the upper end mounting cross member 5A and the lower end mounting cross member 5B are connected to the adjacent horizontal members 3A, 3A,
Horizontal beams 3A, 3A, spanning 3B, 3B.
It runs vertically through the pipe holes 9, 9 of 3B and 3B.

And horizontal beams 3A, 3A and horizontal beams 3B,
A ring-shaped metal fitting 10a (see Fig. 7) is placed over mutually adjacent ends of the net 4A, and two vertical plates 10b, 10b are applied to the ring-shaped metal fitting 10a and bolted together with the net 4A sandwiched therebetween. A lashing member 10 having the following is disposed between the pillar members 2, 2.

The horizontal beams 20A, 20B are short, and when they are attached to each column member 2 as shown in FIG.
Each horizontal beam 20A, 20B bridges the gap.
The upper end mounting horizontal member 5A is vertically passed through the pipe hole 21 of
5A ends and the lower end mounting cross member 5
Ring-shaped fittings 10a, 10a are respectively placed on the ends of B, 5B in close proximity to each other, as shown in FIG.

[Effect]

The pillar member 2 has its upper part 2a and lower part 2b facing outside the site, and horizontal beams 3A and 3B are sequentially fixed to the upper part 2a and lower part 2b of the pillar member 2. When the concrete poured with the pillar members 2 standing upright hardens, the net members 4 are passed vertically through the pipe holes 9, 9 from one end surface of the horizontal beams 3A, 3B. Then, the ring-shaped fittings 10a, 10a of the lashing member 10 are placed over the mutually proximate portions of the ends of the horizontal beams 3A, 3A and the mutually adjacent portions of the ends of the horizontal beams 3B, 3B, respectively. vertical board 1
Attach 0b and 10b and secure with bolts. In this way, the net 4A is attached to the horizontal beam 3 through a series of operations.

In such on-site work, the net 4A is placed closest to the desired boundary line.
As a result, the boundary between the site and the adjacent site is clarified, and the curved pillar members 2 can make the cityscape look different. Then, the net 4A is fixed vertically, horizontally, and horizontally, and the loosening of the mesh extending in the direction in which the pillar members 2, 2 are erected is suppressed.

Even when the horizontal beams 20A and 20B are short and are attached to the respective pillar members 2 and 2 independently, the net 4A can be stretched using the same procedure.

In this case, the upper end attachment cross member 5A and the lower end attachment cross member 5B are longitudinally passed through the pipe holes 9, 9 so as to bridge between the horizontal beam members 3A, 3A, 3B, and 3B. Then, the ring-shaped metal fitting 10a of the lashing member 10
are placed over the mutually proximate portions of the ends of the upper-end mounting horizontal members 5A, 5A and the mutually proximate portions of the ends of the lower-end mounting cross members 5B, 5B, respectively, and each of the two vertical plates 10
b and 10b are applied and bolted.

[Effect of idea]

According to the present invention, the horizontal beams are attached in parallel to the parts extending from the upper and lower parts of the column member to the same side, and the upper end mounting cross member and the lower end mounting cross member holding the net are Since the net is continuously passed through the pipe holes provided in the horizontal beam, the net can be placed as close as possible to the boundary line and on the boundary line compared to conventional fences. Therefore, the network makes boundaries clear and prevents troubles caused by unclear boundaries. On the other hand, since the net member, in which various types of long nets with wide meshes are attached to the upper end mounting cross member and the lower end mounting cross member, is passed longitudinally through the horizontal beam members, the net can be easily and continuously attached to multiple column members. The efficiency of on-site assembly work for installing nets is improved. Of course, when it is desired to attach a net with a different pattern, the existing net can be easily removed and the net members can be replaced smoothly. Furthermore, the pillar members are elegant with overhanging portions, so that the appearance of the fence can be made beautiful.

Since the horizontal beams are installed continuously so as to straddle adjacent column members, and the joints are covered by lashing members, the upper and lower parts of the net look simple, and the net itself is It can make patterns etc. stand out. The net is held in place at the top, bottom, left and right, and loosening is suppressed as much as possible.

Further, if short horizontal beams are attached independently to each column member, the horizontal beams can be short, which has the advantage of being easier to handle in terms of transportation. Of course, the joints of the upper end attachment cross member and the lower end attachment cross member exposed from the horizontal beam are hidden by the lashing members.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The C-shaped fence of the present invention will be described in detail below based on embodiments with reference to the drawings.

Figure 1 shows a C-shaped fence that uses a pipe structure to reduce weight. This fence 1 is composed of a C-shaped column member 2, horizontal beam members 3A, 3B extending in the direction in which the column members 2, 2 are erected and attached in parallel, and a net member 4. The pillar member 2 is a main member 2 whose upper part 2a forms an overhang portion bent into an arch shape.
A, and a bent member 2B that is integrated with the lower part 2b of the main member 2A and forms an arm timber extending in the same direction. The horizontal beam members 3A and 3B are long pipe members, and are fixed to the upper portion 2a of the main member 2A and the tip portion of the bending member 2B. The net member 4 includes a net 4A that forms a mesh and is continuously stretched in the direction in which the pillar members 2, 2 are erected, and a long pipe-shaped upper end mounting horizontal member 5A that is attached along the upper and lower edges of the net 4A. and lower end mounting cross member 5
It's more familiar than B.

The main member 2A constituting the C-shaped column member 2 is provided with a straight portion extending downward from an arched upper portion 2a, and its lower end is fixed to the underground 12a within the site 12. . That is, its lower end is placed in a buried foundation formwork 6, and concrete 6A is placed therein. When the pillar member 2 is erected, the tip 2c of the upper part 2a faces the road 13 side.

The bending member 2B is fixed to the main member 2A erected in this way with bolts or the like so that the tip 2d faces the road 13 side, and the pillar member 2 as a whole has a C
It is taking shape. The respective tips 2c and 2d are
It is located in a vertical plane including the outer surface 8a of, for example, a concrete block 8 for edging the site 12, and is aligned on the illustrated boundary line 7. Therefore, as will be described later, if the upper end attachment cross member 5A and the lower end attachment cross member 5B are passed vertically through the pipe holes 9 of the upper and lower horizontal beam members 3A and 3B and are made to straddle the adjacent horizontal beam members (second
(see figure), the position of the net 4A is as close as possible to the boundary line 7, so that the boundary can be clearly defined. Note that covers 2e and 2f are attached to the tip 2c of the main member 2A and the tip 2d of the bent member 2B to prevent rainwater from entering.

As shown in FIGS. 3 to 6, the horizontal beams 3A and 3B of this example have a part of the lower surface and the upper surface cut out in the longitudinal direction over the entire length, and the openings 3a and 3b are vertically opposed to each other. are doing. These openings 3a,
The net member 4, which includes the net 4A, the upper end mounting cross member 5A, and the lower end mounting cross member 5B, is connected to the end surfaces of the horizontal cross members 3A and 3B. The pipes are continuously and simultaneously longitudinally passed through the pipe holes 9,9.

The horizontal beam member 3A with the opening 3a facing downward and the horizontal beam member 3B with the opening 3b facing upward are parallel to each other and the main member 2A is parallel to each other so that their horizontal postures are maintained.
The bending members 2B are fitted into recesses 11, 11 formed near the tips 2c, 2d, and fixed by welding or the like, if necessary.

In this way, when the horizontal beams 3A, 3B attached to the C-shaped column member 2 are arranged between the adjacent column members 2, 2, the upper and lower pipe holes 9, 9 are located along the boundary line 7. is parallel to As a result, the net 4A can be easily stretched at the construction site by simply inserting the net members 4 into the upper and lower pipe holes 9, 9. Incidentally, it is preferable that the horizontal beam 3B attached to the bending member 2B is provided with a drainage hole 3c for draining rainwater that has entered (see FIG. 6).

On the other hand, the upper end mounting cross member 5A is passed longitudinally across adjacent horizontal rail members 3A, 3A that are in close contact with each other, and the lower end mounting cross member is passed longitudinally across the horizontal rail members 3B, 3B. 5B are both pipe materials, drawn materials, etc., and have openings 5a and 5b cut out in a straight line extending in the longitudinal direction. In the openings 5a, 5b, bent portions 4a, whose edges are deformed inwardly or outwardly,
The upper and lower edges of the net 4A on which the net 4b is formed or the retaining member is attached are locked. Therefore, as described above, each C-shaped column member 2, 2 can be installed by simply passing the upper end mounting cross member 5A and the lower end mounting cross member 5B through the pipe holes 9, 9 of the horizontal beam members 3A, 3B.
A net member 4 can be stretched continuously in between.

By the way, as the net 4A, a diamond-shaped wire mesh, a welded wire mesh, an expanded metal mesh, a chemical fiber mesh such as vinyl mesh is used. Any one of them may be selected according to the preference of the builder, and it may be attached to the upper end attachment cross member 5A or the lower end attachment cross member 5B. Alternatively, a wide variety of nets may be individually manufactured as the net members 4 in advance, and the installer may select one from among them.

By the way, the above-mentioned diamond-shaped wire mesh is formed by intertwining wire rods that extend vertically by repeating a dogleg shape that is displaced in a slightly three-dimensional manner, so when it is delivered to the construction site, Even if the net has a finite length, if wires of the same shape are entwined around the connecting parts, it can be made into a continuous, infinitely extending rhombic wire mesh.Therefore, the rhombic wire mesh as Net 4A is a seamless fence. It is ideal for the formation of

The above-mentioned C-shaped fence 1 is designed to improve work efficiency by expanding the assembly work unit on site, and the pillar members 2 are erected at a distance longer than the distance between the pillars of conventional fences. can do.
Of course, the column members 2 can be erected at short intervals as before, but if the column intervals are large,
Horizontal beams 3A, 3B are placed at intermediate positions between the pillar members 2, 2.
In order to reduce the deflection of the bolt, a suitable securing member 10 (see FIG. 2) is attached.

This lashing member 10 has adjacent horizontal beams 3A,
The mutually adjacent parts of the ends of 3A and the horizontal beams 3B, 3
It can also be used at the abutting point of the end of the wire, and has a ring-shaped metal fitting 10a and two vertical plates 10b, 10b that are fitted and bolted to the ring-shaped metal fitting 10a so as to sandwich the net 4A. According to this lashing member 10, the tension in the extending direction of the net 4A can be maintained between the pillar members 2, 2, and in cooperation with the horizontal struts 3A, 3B that provide tension in the vertical direction, the net 4A slack etc. are suppressed as much as possible.

According to the ring-shaped metal fitting 10a, the horizontal beam 3
It is possible to cover up the joints of A and 3A and the horizontal beams 3B and 3B, and also provide connection rigidity between the horizontal beams. If the net 4A is other than a diamond-shaped wire mesh, the joint of the wire mesh is also the vertical plate material 10b,
It is also possible to cover it by sandwiching it between 10b.

The C-shaped fence 1 having such a configuration can be efficiently assembled on site as follows.

First, a C-shaped column member 2 is manufactured in a factory.
A bending member 2B is fastened to the lower part 2b of the main member 2A with a bolt or the like via a bracket 25 (see FIG. 1) to form a C-shaped column member 2. In addition, main member 2
A and the bending member 2B may be transported separately and the fastening may be performed on site. Recessed portion 11 for fitting the horizontal beam 3A into the upper part 2a of the main member 2A
(See Figure 3) is formed, while the bent member 2B
A recess 11 (see FIG. 5) is also formed on the upper surface side. The horizontal beams 3A and 3B, the upper end attachment cross member 5A, and the lower end attachment cross member 5B are manufactured by dividing into lengths that can be transported. Furthermore, bent portions 4a and 4b are formed on the upper and lower edges of the net 4A.

As shown in FIG. 1, the column member 2 transported to the site is inserted into a foundation formwork 6 formed within the site 12 with its lower end facing toward the road 13 with its upper end 2a facing the road 13 side. If the bending member 2B is not attached in advance, it is fixed with bolts on the spot. After sequentially fitting the horizontal beams 3A and 3B into the recess 11 of the upper part 2a of the column member 2 (see Fig. 3) and the recess 11 of the bending member 2B (see Fig. 5) and fixing them by welding or the like, they are placed in an upright position. Concrete 6A is poured while holding the .

Once the concrete 6A has solidified, as shown in FIG. 2, the upper end mounting cross members 5A and The lower end mounting horizontal member 5B is attached to one end surface 3 of the horizontal member 3A, 3B.
It runs vertically from M, 3N to pipe holes 9, 9. In this way, the net member 4 is connected to the pillar member 2 and the horizontal beam member 3.
It can be attached to a machine, but it can also be advanced through a series of push and pull operations. In addition, if necessary, the ring-shaped metal fitting 10a of the lashing member 10 can be attached to the horizontal beam 3A,
3B, apply two vertical plates 10b, 10b shown in FIG. 7 so as to sandwich the net 4A, and fix by passing bolts into the respective mounting holes 10c, 10c. Even if the distance between the pillar members 2, 2 is large, loosening and bending of the net 4A, as well as the occurrence of deflection of the horizontal beam 3, can be prevented. This kind of thing is also done at the points where the ends of the adjacent horizontal beams 3A, 3A drawn in the upper half of FIG. Therefore, the plane of the net 4A is naturally leveled.

In such on-site work, the upper end mounting cross member 5A and the lower end mounting cross member 5B that are integrated with the net 4A,
The work of passing vertically through the pipe holes 9, 9 of the upper and lower horizontal beams 3A, 3B is not particularly time-consuming and can be done efficiently, and the net 4A can be installed at the position closest to the desired boundary line 7. It can be stretched. As a result, the boundary between the site 12 and the road 13 or adjacent site is made clear, and the exterior can be given a different look by the pillar member 2 having a curved or overhanging portion. In addition, when using a diamond-shaped wire mesh, there is an advantage that the net 4A can be made continuous on site as described above, and the appearance can be further improved.

By the way, when attaching the horizontal beams 3A and 3B to the column member 2, instead of fitting them into the recesses 11 as described above, the outer surfaces of the pipes are brought into contact with each other as shown in FIG. It is also possible to use a simple fixing method.

9 to 11 show different examples, in which the C-shaped fence 14 has a main member 1 constituting the column member 2.
The overhang of the upper part 15a of 5A is the main member 2 mentioned above.
It is formed longer than the amount of overhang of A, and a straight member 15B as an arm piece extends horizontally from the lower part 15b. A support member 17 is inserted between the straight member 15B and the upper surface 16a of the slope protection stone 16, so that the posture of the C-shaped fence 14 is maintained even more stably. Even in such an example, the horizontal beam members 3A and 3B are attached, and the net member 4 can be easily installed.

FIGS. 12 to 14 show still different examples, in which the C-shaped fence 18 has an overhang of the upper part 19a of the main member 19A constituting the column member 2.
Less than that of the main member 2A in the figure, the straight member 19
B also uses a short pipe. On the other hand, the horizontal beams 20A and 20B are the horizontal beams 3A and 3 described above.
Unlike B, it is shorter, and the main member 19
A and the straight member 19B are attached one by one independently (see FIGS. 15 and 16).

And each of the short horizontal beams 20A, 20B
The upper end attachment cross member 5A and the lower end attachment cross member 5B are passed through the pipe hole 21 vertically. In this case, most of the upper end mounting cross member 5A and the lower end mounting cross member 5B,
It is exposed to the outside of the horizontal beams 20A and 20B. 1st
A lashing member 22 is attached at a position as shown in FIG. 3, and vertically connects the upper end attachment cross member 5A and the lower end attachment cross member 5B. Between the upper end mounting cross members 5A, 5A and between the lower end mounting cross members 5B, 5B, the seventh
A securing member of the same construction as shown in the upper half of the figure is used. Ring-shaped band metal fittings with an opening 1
If 0a is placed over the connection portion, exposure of the seam of each cross member can be avoided and connection rigidity can be provided at the abutting portion.

In any of the examples described above, the net member 4 can be installed from the site side, and the net 4A can be stretched even when workers cannot enter outside the boundary. By the way, pillar member 2
Instead of an integral overhang formed on the top of the first
As shown in FIG. 7, overhanging members 23 having various shapes may be used to cover the main member 2A or the like.
In short, any material that can integrate the horizontal beams 3A and 20A is sufficient.

[Brief explanation of the drawing]

Figure 1 is a side view of the C-shaped fence of the present invention, Figure 2
The figure is a front perspective view of the C-shaped fence, Figure 3 is an explanatory diagram of the installation of the upper horizontal beam, and Figure 4 is the same as in Figure 3.
Figure 5 is an illustration of the installation of the lower horizontal beam, Figure 6 is a view of Figure 5 as viewed from the - line, Figure 7 is an assembly configuration diagram of the lashing member, and Figure 8 is the horizontal Examples of different attachments of timbers, Fig. 9 is a side view of a C-shaped fence of another example of the present invention, Fig. 10 is a view taken along the - line in Fig. 9,
Figure 11 is a view from the - line arrow in Figure 10,
2 is a side view of another embodiment, FIG. 13 is a view taken along the line - of FIG. 12, FIG. 14 is a view taken along the line - of FIG.
Line arrow view, Figure 16 is - of Figure 12
A view taken along the line, FIG. 17 is an explanatory diagram of different configurations of the upper part of the column member, and FIG. 18 is a side view of a conventional fence. 1... C-shaped fence, 2... Pillar member, 2a...
Upper part, 2b...Lower part, 2B...Arm wood (bending member), 3, 3A, 3B...Horizontal beam material, 3a, 3b
...Opening, 4...Net member, 4A...Net,
5A... Upper end mounting horizontal member, 5B... Lower end mounting horizontal member,
9...pipe hole, 10...lashing member, 10a...
Ring-shaped metal fittings, 10b... Vertical plate material, 14... C-shaped fence, 15B... Arm wood (straight member) 15a
...Top part, 15b...Bottom part, 18...C-shaped fence, 19B...Arm wood (straight member), 19a...
Upper part, 20A, 20B...Horizontal beam material, 21...Pipe hole, 22...Securing member.

Claims (1)

[Claims for Utility Model Registration] (1) In a fence equipped with pillar members and horizontal beams for holding and fixing a net, the upper part of the pillar member is bent in an arch shape and extends to one side, The arm timbers attached to the lower part of the pillar member are made to extend in the same direction to form a substantially C shape, and each of the upper tip portion of the pillar member and the tip portion of the arm timber located at the lower portion includes:
Pipe-shaped horizontal beams with openings cut out in the longitudinal direction facing each other vertically extend in the installation direction so as to straddle adjacent column members, and connect to other horizontal beams at the ends. The net includes a net attached close to each other to form a mesh and stretched in the direction in which the column member is erected, and a pipe-shaped upper end attachment cross member and lower end attachment cross member that lock the net along the upper and lower edges. A net member is formed, and its upper end attachment cross member and lower end attachment cross member are passed vertically through the pipe hole of the horizontal beam member so as to straddle the adjacent horizontal beam members, and the end portion of the horizontal beam member A lashing member is arranged between the column members, and includes a ring-shaped metal fitting that is placed over mutually adjacent locations, and two vertical plates that are applied to and bolted to the ring-shaped metal fitting with the net between them. A C-shaped fence characterized by: (2) In a fence equipped with pillar members and horizontal beams for holding and fixing the net, the upper part of the pillar member is bent into an arch shape and extends to one side, and the pillar member is attached to the lower part of the pillar member. The arm timbers are formed into a substantially C shape by extending in the same direction, and each of the upper tip portion of the column member and the lower tip portion of the arm timber are provided with:
Pipe-shaped horizontal beams with openings cut out in the longitudinal direction facing each other vertically are attached to extend in the direction in which the column members are erected, forming a mesh that is stretched in the direction in which the column members are erected. A net member is formed by comprising a net, a pipe-shaped upper end attachment cross member and a lower end attachment cross member that lock the net along the upper and lower edges, and the upper end attachment cross member and the lower end attachment cross member are It is passed vertically through the pipe hole of each horizontal beam so as to bridge between the horizontal beams, and is connected to a point adjacent to each other at the end of the upper end mounting cross member and a point adjacent to each other at the end of the lower end mounting cross member. A lashing member having ring-shaped metal fittings that are respectively covered and two vertical plates that are applied to and bolted to the ring-shaped metal fittings so as to sandwich the net is arranged between the pillar members. Characteristic C-shaped fence.