JP7656325B2 - Flexible fences and fence structures - Google Patents

Description

The present invention relates to adjustable fences and fence structures, and in particular to adjustable fences and fence structures using such fences that have a simple structure but can be easily installed along bends in boundaries or along slopes in the ground, allowing for high design freedom and ease of construction.

Various fences are installed on the ground for purposes such as preventing pests such as wild boars and deer from entering cultivated land, and preventing other people from entering the premises.
Patent Document 1 discloses a fence in which a corrugated welded wire mesh is fixed to the front of posts driven into the ground. Patent Document 2 discloses a fence in which a fence body is fixed to the posts so that the angle can be changed in the horizontal and vertical directions.

JP 2018-61509 A JP 2017-123826 A

The conventional techniques have the following problems.
<1> The fence in Patent Document 1 has wire mesh fixed to posts, so it cannot be installed to accommodate cases where the boundary where the fence is to be installed is curved or the ground is sloping.
<2> The fence in Patent Document 2 allows the angle of the fence body relative to the posts to be adjusted, so the fence can be made to continue along a curved boundary or the fence body can be installed to follow an incline. However, the structure of the connecting parts for rotating the fence body is complex and there are many parts, so the material cost is high and assembly is time-consuming and labor-intensive.
<3> When the fence of Patent Document 2 is installed along sloping ground, it is sufficient if the ground below the fence body slopes in a straight line. However, if this is not the case and there are unevenness along the slope, a gap will occur between the bottom of the fence body and the ground, impairing its function as a fence.

The object of the present invention is to provide a flexible fence and fence structure that solves the above problems.

The adjustable fence of the present invention comprises a number of anchor posts made of rod-shaped bodies with a circular cross section, and a fence panel that is laid out between the anchor posts. The fence panel is a welded wire mesh made up of a number of vertical wires and a number of horizontal wires, and the lower ends of the vertical wires are penetrating ends that protrude below the lowest row of horizontal wires, and both ends of the horizontal wires are loop ends that connect the fence panel so that it can rotate around the long axis of the anchor posts and slide along the long axis of the anchor posts.

The adjustable fence of the present invention may have loop ends formed by folding back the ends of horizontal wires, and the folded tips of multiple loop ends may be connected by vertical wires.

The anchor post of the adjustable fence of the present invention may be composed of a straight post body and a locking end formed by folding back the head of the post body.

The fence structure of the present invention is characterized by using multiple adjustable fences, connecting two adjacent fence panels to one anchor post, and penetrating the lower ends and penetration ends of the multiple anchor posts into the ground.

The fence structure of the present invention is located on a slope where the ground slopes in the direction in which the fence structure continues, and the heights of the two fence panels that share one anchor post may be different.

The fence structure of the present invention may include rod- or cable-shaped bracing members that connect the center of the fence panel to the ground.

The fence structure of the present invention may have bracing members arranged on both sides of the fence panel in the face direction.

Since the adjustable fence and fence structure of the present invention have the above-mentioned configuration, they have at least one of the following effects.
<1> Although it has a simple structure, the fence surface material can rotate and slide up and down relative to the anchor posts, so it can be installed along curves in the boundary or along the slope of the ground. This allows for a high degree of freedom in design and construction.
<2> Installation is very efficient, as the fence can be installed simply by inserting the anchor post into the loop end of the fence panel and driving it into the ground.
<3> The combination of two types of components, the anchor posts and the fence surface material, makes it possible to adapt to a variety of terrains, making the components highly versatile and reducing material costs.
<4> Since the penetration end of the fence panel is inserted into the ground, no gaps will form between the bottom of the fence panel and the ground even if the ground is uneven along the slope.

FIG. 2 is an explanatory diagram of a movable fence according to the present invention. FIG. FIG. 1 is an explanatory diagram of a fence structure according to the present invention. An explanatory diagram of an example of a fence structure installed on sloping ground.

The following describes the adjustable fence and fence structure of the present invention in detail with reference to the drawings.

[Free-standing fence]
<1> Overall configuration (Fig. 1)
The adjustable fence 1 of the present invention is a fence that can be installed along the slope of the ground or along the curve of a boundary.
In this example, the adjustable fence 1 is used as a fence to prevent damage caused by wild animals such as wild boars and deer, but the use is not limited to this and the adjustable fence can be used for various other purposes.
The adjustable fence 1 comprises at least a plurality of anchor posts 10 and a fence face material 20 that is extended between the anchor posts 10. In this example, a brace material 30 is further provided.
One of the features of the adjustable fence 1 is that the fence panel 20 is structured so that it can rotate around the long axis of the anchor post 10 and slide along the long axis.

<2> Anchor Post The anchor post 10 is a post that supports the fence panel 20 .
The anchor post 10 is made of a rod-shaped body with a circular cross section, and comprises at least a straight post body 11 and a locking end 12 provided at the head of the post body 11.
In this example, the engaging end 12 has an inverted U-hook shape formed by folding back the head of the support body 11 .
However, the structure of the engaging end 12 is not limited to this, and it may be, for example, an inverted L-shape, an inverted T-shape, or a stud head shape. The point is that it has a structure that can hold down the loop end 22a from above and fix the height of the fence panel 20 by driving it in.

<3> Fence Panel Material The fence panel material 20 is a panel material having a shielding function.
The fence panel 20 is made of a welded wire mesh in which a plurality of vertical wires 21 and a plurality of horizontal wires 22 are arranged in a lattice pattern.
The mesh size of the fence panel 20 can be appropriately selected depending on the application. In this example, the mesh size of the fence panel 20 is elongated vertically to make it difficult for small animals such as raccoons and palm civets to climb up.
The lower ends of the vertical wires 21 protrude downward beyond the lowermost row of horizontal wires 22 and form penetration ends 21a for penetrating into the ground.
Both ends of the cross wire 22 form loop ends 22 a for connection to the anchor post 10 .

<3.1> Loop end (Fig. 2)
The loop end 22 a is the portion that connects the fence panel 20 to the anchor post 10 .
The loop ends 22a are formed by folding back both ends of the horizontal wire 22 into an inverted U-shape when viewed from above.
A communication passage capable of communicating with the post body 11 of the anchor post 10 is defined within the loop ends 22a of the horizontal wires 22 arranged in parallel one above the other.
In this example, the folded ends of the loop ends 22 a are connected by a single vertical wire 21 .
Since both ends of the horizontal wire 22 are not ring-shaped but are folded-over loop ends 22a, if, for example, a vermin collides with the fence panel 20, the loop ends 22a elastically deform to open and absorb the impact, thereby preventing the impact from being transmitted to the anchor post 10 and causing the anchor post 10 to deform or tilt.
Furthermore, by connecting the tips of the loop ends 22a with the vertical wire 21, even if the loop end 22a opens momentarily upon impact, the vertical wire 21 on the loop end 22a of the adjacent fence panel 20 holds down the loop end 22a on the impact-receiving side from the outside, preventing the fence panel 20 from coming off the anchor post 10.

<4> Reinforcement Material The reinforcing material 30 is a member that reinforces the fence panel 20.
In this example, the bracing member 30 is a long metal anchor with a head folded back into a hook shape.
The hook at the head of the bracing member 30 is engaged with the vicinity of the center of the fence surface material 20 and the tip is driven into the ground, thereby connecting the fence surface material 20 to the ground and reinforcing the fence surface material 20 in the direction perpendicular to the surface.
It is effective to place the bracing material 30 on the pest side of the fence panel 20, but it is even more preferable to place it on both sides of the surface of the fence panel 20.
It should be noted that the bracing material 30 is not limited to a metal anchor, but may be another rod-shaped body, or a cord-shaped body such as a wire rope that connects the fence surface material 20 to the ground.

<5> Fence structure (Fig. 3)
The fence structure A is a structure formed by installing a plurality of adjustable fences 1 successively on the ground.
The fence structure A is installed, for example, in the following manner.
The fence panel 20 is placed at the installation location, and the lower penetration end 21a is inserted into the ground and fixed therein.
Next, the post body 11 of the anchor post 10 is connected to the inside of the loop end 22a of the fence panel 20, and the lower end is driven into the ground. Here, for the flexible fences 1 other than the flexible fence 1 at the very end, one anchor post 10 is shared by two adjacent fence panel materials 20. Therefore, the loop ends 22a of the two fence panel materials 20 are overlapped (FIGS. 2(a) and (b)), and the anchor post 10 is connected to the overlapped loop end 22a (FIG. 2(c)) and driven into the ground.
The fence structure A of the present invention has a high degree of freedom in design, because with the anchor post 10 driven into only one side of the fence surface material 20, the other side of the fence surface material 20 can be rotated around the anchor post 10, allowing the adjustable fence 1 to be bent and extended at any angle. In addition, the orientation of the fence surface material 20 can be adjusted on-site depending on the conditions of the installation site, such as standing trees or uneven ground, so there is a high degree of freedom in construction.

<6> Installation on a slope (Fig. 4)
When the fence structure A is installed along the slope of the ground, the heights of two adjacent fence panel members 20 are shifted up and down to match the slope of the ground when connected to one anchor post 10.
In this example, a fence panel 20 having a width that is 1/4 of that of a fence panel 20 for flat ground is used. By using a narrow fence panel 20 in this manner, the fence structure A can be installed without difficulty even on a steep slope.
Furthermore, the fence structure A of the present invention is installed by penetrating the penetration end 21a of the fence panel 20 into the ground, even if the ground has unevenness along the slope direction, so no gap occurs between the lower part of the fence panel 20 and the ground.

REFERENCE SIGNS LIST 1 Free-standing fence 10 Anchor post 11 Post body 12 Engagement end 20 Fence face material 21 Vertical wire 21a Penetration end 22 Horizontal wire 22a Loop end 30 Bracing material A Fence structure

Claims (6)

A plurality of anchor posts each having a circular cross section;
and a fence surface material that is extended between the plurality of anchor posts;
The fence surface material is a welded wire mesh formed by combining a plurality of vertical wires and a plurality of horizontal wires,
The lower ends of the vertical wires are penetration ends that protrude downward from the lowermost horizontal wire,
both ends of the plurality of horizontal wires are loop ends that connect the fence panel to the anchor post so that the fence panel can rotate about the longitudinal axis of the anchor post and slide along the longitudinal axis of the anchor post;
The loop end is formed by folding back an end of the horizontal wire into a substantially U-shape,
The folded ends of the loop ends are connected to each other by the vertical wire.
The vertical wire is not disposed in the U-shaped curved portion of the loop end, so that the loop end of one movable fence can overlap with the loop end of another adjacent movable fence,
The anchor post can be inserted through the two overlapping loop ends .
Free fence. 2. The adjustable fence according to claim 1 , wherein the anchor post comprises a straight post body and a locking end formed by folding back a head portion of the post body. A fence structure using a plurality of adjustable fences according to claim 1 or 2 ,
Two adjacent fence panels are connected to one anchor post,
The lower end portions and the penetration ends of the plurality of anchor posts are inserted into the ground,
Fence structure. A fence structure as described in claim 3 , characterized in that the ground is sloping in the direction in which the fence structure continues, and the heights of the two fence panel members that share one anchor post are different. 5. A fence structure as claimed in claim 3 or 4 , comprising rod-shaped or rope-shaped braces, said braces connecting the vicinity of the centre of said fence face material to the ground. 6. A fence structure as claimed in claim 5 , characterized in that the bracing members are arranged on both sides in the surface direction of the fence panel material.