Animal-proof electric fence system
The integrated electric fence system with a truss-shaped wire mesh and impact current generation addresses installation challenges and durability issues, ensuring effective shock protection against large animals.
Patent Information
- Application Number
- JP2021188556
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-11-19
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2041-11-19
AI Technical Summary
Existing electric fences are prone to breakage and require labor-intensive installation, especially when protecting against large animals like wild boars or deer, and can become non-functional due to short circuits.
An integrated electric fence system with a truss-shaped wire mesh structure, incorporating insulated and current-carrying wires, and a power transmission device that generates impact currents, allowing for quick installation and enhanced durability.
The system provides effective shock protection and reduces the likelihood of breakage, maintaining functionality even under heavy impact, while enabling efficient and rapid deployment.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to an anti-animal electric fence and an anti-animal electric fence system, and in particular to an anti-animal electric fence and an anti-animal electric fence system that is easy to install and has a high shielding effect, thanks to an integrated structure in which an electrified wire with an electric shock function is woven into the fence surface with a shielding function. [Background technology]
[0002] Electric fences are installed on farmland to prevent harmful animals such as wild boars and monkeys from entering the fields. Patent Documents 1 to 4 disclose electric fences in which electric wires are laid horizontally between posts erected on the ground via insulators, and a voltage is applied to the electric wires from a power transmission device. These electric fences repel pests by taking advantage of the psychological effect of making them fear contact with the electric wires after receiving an electric shock the first time they come into contact with the wires. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-51270 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-271238 [Patent Document 3] Japanese Patent Application Laid-Open No. 2008-79521 [Patent Document 4] Japanese Patent Application Laid-Open No. 2002-272355 Summary of the Invention [Problem to be solved by the invention]
[0004] The prior art has the following problems. <1> Pests will avoid electric fences if they have learned to receive electric shocks, but if relatively large pests such as wild boars or deer that have not yet learned the shock collide with an electric fence, the violent impact can cause the wires to break or come off the insulators and touch the posts or the ground, causing a short circuit and making the electric fence non-functional. <2> The effective installation height of the wires must be set on-site and the wires must be laid out one by one, which is time-consuming and labor-intensive, especially when the wires are laid out densely while taking shielding effect into consideration.
[0005] An object of the present invention is to provide an animal-proof electric fence and an animal-proof electric fence system that solve the above-mentioned problems. [Means for solving the problem]
[0006] The animal-proof electric fence of the present invention comprises a plurality of posts erected on the ground and a fence surface stretched between the plurality of posts, the fence surface comprising a plurality of horizontal wires arranged in parallel in the height direction and extending linearly in the width direction, and a plurality of insulated connecting wires arranged in parallel in the height direction and extending in a sawtooth pattern in the width direction, wherein one connecting wire is connected to two adjacent horizontal wires in the vertical direction at its upper and lower vertices, so that the fence surface forms a truss-shaped wire mesh, and the plurality of horizontal wires are made up of a combination of insulated wire and current-carrying wire.
[0007] In the animal-proof electric fence of the present invention, the connecting wire may be wound in a coil shape around the horizontal wire at its upper and lower vertices.
[0008] The animal-proof electric fence of the present invention may be provided with a guard section in which the lower part of the fence surface is folded back horizontally and laid on the ground.
[0009] In the animal-proof electric fence of the present invention, the current-carrying wire may be a bare aluminum-coated steel wire, and the connecting wire and insulating wire may be a resin-coated galvanized iron wire.
[0010] In the animal-proof electric fence of the present invention, the posts may comprise a metal post body and a plurality of insulators attached to the post body, and the fence surface may be attached to the post body via the insulators.
[0011] The animal-proof electric fence system of the present invention comprises an animal-proof electric fence and a power transmission device capable of generating an impact current, and is characterized in that the positive pole of the power transmission device is electrically connected to a power line and the negative pole of the power transmission device is electrically connected to earth or another power line.
[0012] In the animal-proof electric fence system of the present invention, the power transmission device may be of a pulse output type.
[0013] The animal-proof electric fence system of the present invention may also include a solar power generation device electrically connected to the power transmission device. [Effects of the Invention]
[0014] The animal-proof electric fence and animal-proof electric fence system of the present invention have the above-mentioned configuration and therefore have at least one of the following effects. <1> The fence surface has an integrated structure with live wires woven into the structural material, giving the surface both physical shielding and electric shock protection. This means that it is less likely to break and maintains its electric shock function even when hit with a violent force by a relatively large pest such as a wild boar or deer. <2> Since the current-carrying wire is integrally woven into the insulated wire, the current-carrying wire is less likely to come into contact with conductive members such as supports, and electric leakage is less likely to occur. <3> The fence surface is rolled up and simply unfolded on site and laid between the posts, allowing the fence surface and live wires to be installed simultaneously, resulting in quick installation and high construction efficiency. [Brief explanation of the drawings]
[0015] [Figure 1] 1 is an explanatory diagram of an animal-proof electric fence system according to the present invention. [Figure 2] An explanatory diagram of the posts and fence surface. [Figure 3] A photograph used in place of a drawing regarding the rolling up of the fence surface. [Figure 4]FIG. 10 is an explanatory diagram of a second embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0016] The animal-proof electric fence and animal-proof electric fence system of the present invention will be described in detail below with reference to the drawings. [Example]
[0017] [Animals-proof electric fence system] <1> Overall configuration (Figure 1) The animal-proof electric fence system A of the present invention is a system for blocking the passage of pests V outdoors. The animal-proof electric fence system A includes at least an animal-proof electric fence 1 installed on the ground, and a power transmission device A1 electrically connected to the animal-proof electric fence 1 via a power transmission line A2. In this example, the animal-proof electric fence system A is applied to wild boars. However, the system is not limited to wild boars and can also be applied to various other harmful animals, such as deer, monkeys, raccoons, and palm civets. For convenience, Figure 1 shows only one unit of the animal-proof electric fence system A, which consists of two posts 10 and one fence surface 20, but in reality the posts 10 and fence surface 20 are continuous in the width direction, dividing the site into a pest side and a protection side.
[0018] <2> Animal-proof electric fence The animal-proof electric fence 1 is a fence in which an electric wire is integrated into the fence surface. The animal-proof electric fence 1 comprises at least a plurality of posts 10 erected on the ground and a fence surface 20 laid out between the posts 10. The height of the animal-proof electric fence 1 is set depending on the target pest V. For example, the height can be 1.5 m or more if the pest V is a wild boar, 2 m or more if it is a monkey, or 2.5 m or more if it is a deer.
[0019] <3> Support (Figure 2) The posts 10 are pillars that support the fence surface 20 . In this example, the support 10 includes a metal support body 11 and a plurality of insulators 12 attached to the support body 11. In this example, a combination of a hot-dip galvanized driven pile and a hot-dip galvanized steel pipe is used as the support body 11. In detail, the support body 11 is constructed by driving the driven pile into the ground and inserting the steel pipe onto the above-ground part of the driven pile. The insulators 12 are arranged at predetermined intervals along the height direction of the support body 11, and the fence surface 20 is fixed to the support body 11 via the insulators 12. However, the structure of the support 10 is not limited to this, and any structure that can support the fence surface 20 in an insulated state may be used.
[0020] <4> Fence surface (Figure 2) The fence surface 20 is a surface material that combines a shielding function and an electric shock function. The fence surface 20 is made of a wire mesh in which a plurality of horizontal wires 21 are connected by a plurality of connecting wires 22. In detail, multiple horizontal wires 21 are stretched horizontally between two supports 10, and are arranged in parallel at a predetermined interval in the vertical direction, and two adjacent horizontal wires 21 in the vertical direction are connected in a zigzag pattern by a single continuous connecting wire 22. By connecting all the horizontal wires 21 with connecting wires 22, the fence surface 20 forms a truss shape with a series of upward triangles and downward triangles. In this example, the lower part of the fence surface 20 is folded back horizontally to form a guard section 20a, which is laid on the pest side of the ground. One feature of the fence surface 20 is that it has an integrated structure in which an electric wire 21b having an electric shock function is woven into a wire mesh having a shielding function.
[0021] <4.1>Horizontal wire rod The horizontal wires 21 are wires that provide shielding between the support pillars 10 . The horizontal wire 21 is made up of a combination of an insulating wire 21a and a conducting wire 21b. In this example, the insulating wire 21a of the horizontal wire 21 is a resin-coated galvanized iron wire, and the current-carrying wire 21b is a bare aluminum-coated steel wire (AS wire). The current-carrying wires 21b are set to correspond to the contact position of the target pest. In this example, of the 11 vertical rows of horizontal wires 21, five horizontal wires 21 in the third to seventh rows from the bottom, which correspond to the height of the boar's nose, are set as current-carrying wires 21b. The ends of the electric wires 21b extend outside the fence surface 20, are connected to each other, and are electrically connected to the positive pole of the power transmission device A1, which will be described later.
[0022] <4.2> Connecting wire rod The connecting wires 22 are wires that connect the horizontal wires 21 together. The connecting wire 22 is made by bending an insulating wire into a sawtooth shape. In this example, the connecting wire 22 is a resin-coated galvanized iron wire. The connecting wires 22 are connected to the horizontal wires 21 at the top and bottom vertices of the sawtooth shape. In this example, at the connection between the horizontal wire 21 and the connecting wire 22, the connecting wire 22 is fixed by being wound in a coil shape around the outer periphery of the horizontal wire 21. This allows the horizontal wire 21 to be reliably fixed to the insulating connecting wire 22.
[0023] <4.3> Guard section The guard portion 20a is a structure that prevents vermin V from digging up the ground. By providing a guard portion 20a on the front surface of the fence surface 20, it is possible to prevent harmful animals V from digging up the ground below the fence surface 20 and crawling through the fence surface 20. The length of the guard portion 20a is set according to the type of vermin V. The guard portion 20a is fixed to the ground by an anchor pin or the like. Furthermore, when the legs of the pest V are resting only on the insulated wire of the guard portion 20a, even if the body of the pest V comes into contact with the conductive wire 21b of the fence surface 20, a closed circuit is not formed and there is a risk that electricity will not flow. For this reason, it is desirable to arrange an electric wire inside the guard portion 20a and electrically connect it to the earth.
[0024] <4.4> Winding up the fence surface (Fig. 3) The fence surface 20 can be wound into a roll for transport and storage. In particular, the large area fence surface 20 can be rolled up in the width direction to form a compact cylinder. If the fence surface 20 is made solely of bare galvanized iron wire, the wire will tend to become strongly curled when the fence surface 20 is rolled up. This requires a large force, such as that required by a vehicle to tow, to unwind and unfold the fence surface 20. In contrast, the fence panel 20 of the present invention is mostly made of galvanized, resin-coated iron wire, and because the wire is soft and thin, it does not easily become curled even when wound into a roll. This means that it can be easily deployed manually by inserting a pipe into the mesh and pulling it.
[0025] <5> Power transmission equipment The power transmission device A1 is a device that transmits an impulse current to the electric wire 21b on the fence surface 20. The power transmission device A1 electrically connects the positive pole to the current-carrying wire 21b of the fence surface 20 via the power transmission line A2, and electrically connects the negative pole to the earth A3. In this example, a pulse-output electric fence is used as the power transmission device A1. By outputting a pulse current at intervals of a few seconds, even if a person accidentally touches it, they will only receive a momentary shock like static electricity and can quickly remove their hand, reducing the risk of electric shock. In this example, a solar power generation device A4 equipped with a solar panel and a battery is used as the power source for the power transmission device A1. The solar power generation device A4 does not require battery replacement or charging, which extends the maintenance interval and reduces running costs. However, the power source for the power transmission device A1 is not limited to the solar power generation device A4, and a rechargeable battery, dry cell battery, outlet, etc. may also be used depending on the environment of the installation location. [Example]
[0026] [Example of connecting both positive and negative poles to the fence surface] In the first embodiment, only a positive current is passed through the current-carrying wire 21b on the fence surface 20. Therefore, if the pest V is a jumping animal such as a monkey or a raccoon, and it jumps directly onto the fence surface 20 without touching the ground with its feet, the contact will not form a closed circuit, so the current-carrying wire 21b will not be energized, and the pest V may jump over the fence surface 20 without receiving an electric shock. Therefore, in this example, some of the multiple electric wires 21b in the fence surface 20 are connected to the positive pole of the power transmission device A1, and the other are connected to the negative pole of the power transmission device A1 (FIG. 4). The positive and negative current-carrying wires 21b are insulated from each other and are arranged alternately so that harmful animals V can easily touch them at the same time. In this example, when a pest V jumps onto the fence surface 20 and simultaneously comes into contact with the positive current-carrying wire 21b and the negative current-carrying wire 21b, a closed circuit is formed, and a shock current can be applied to the pest V. [Explanation of symbols]
[0027] 1. Animal-proof electric fence 10 pillars 11 Pillar body 12 Insulator 20 Fence surface 20a Guard part 21 Horizontal wire rod 21a insulated wire 21b Live wire 22 Connecting wire rod A. Anti-animal electric fence system A1 Power transmission equipment A2 Power Line A3 Earth A4 Solar power generation equipment V Vermin
Claims
1. An animal-proof electric fence system comprising an animal-proof electric fence and a power transmission device capable of generating an impulse current, The animal-proof electric fence is A plurality of pillars erected on the ground; a fence surface extending between the plurality of posts; the fence surface has a plurality of horizontal wires arranged in parallel in the height direction and extending linearly in the width direction, and a plurality of insulating connecting wires arranged in parallel in the height direction and extending in a sawtooth pattern in the width direction, Each connecting wire is connected at its upper and lower vertices to two adjacent horizontal wires in the vertical direction, and the upper vertex of the connecting wire is connected to the lower vertex of the adjacent connecting wire above, thereby forming a truss-shaped wire mesh with a continuous fence surface, the plurality of horizontal wires are each a combination of an insulated wire and a conducting wire; The conductive wire is a bare aluminum-coated steel wire, A positive electrode of the power transmission device is electrically connected to the current-carrying line, and a negative electrode of the power transmission device is electrically connected to a ground or another current-carrying line. Anti-animal electric fence system.
2. 2. The animal-proof electric fence system according to claim 1, wherein the connecting wire is wound around the horizontal wire in a coil shape at its upper and lower vertices.
3. 3. An animal-proof electric fence system as described in claim 1 or 2, characterized in that it comprises a guard section in which the lower part of the fence surface is folded back horizontally and laid on the ground.
4. An animal-proof electric fence system as described in any one of claims 1 to 3, characterized in that the connecting wire and the insulating wire are resin-coated galvanized iron wires.
5. Electric fences are typically used in conjunction with other electric fences, but are not limited to those listed above.
6. 2. The animal-proof electric fence system according to claim 1, wherein the power transmission device is of a pulse output type.
7. 2. The animal-proof electric fence system according to claim 1, further comprising a solar power generation device electrically connected to the power transmission device.
Citation Information
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