Electric fence posts

Abstract

To provide an electric fence post which prevents leakage of electricity even during rainfall when an electric wire is supported on the electric fence post using a stainless steel clip-type electric wire support. [Solution] An electric fence post having a water film blocking member that blocks the water film that forms on the surface of the post during rainfall between the electric wire support part of the post and the contact part of the post with the ground, the water film blocking member being cylindrical, the water film blocking member being attached to the post member so that the post member fits into the cylinder of the water film blocking member, the inner surface of the cylindrical water film blocking member not in contact with the post surface, and a space being provided between the inner surface of the cylindrical water film blocking member and the post surface.

Description

[Technical field]

[0001] The present invention relates to a post for an electric fence that protects crops grown in fields from damage caused by wild boars, deer, etc. [Background technology]

[0002] Electric fences are widely used to prevent damage to crops grown in fields by wild boars, deer, monkeys, etc. An electric fence is a system in which electric wires are set up to surround fields, electricity is passed through the wires, and when animals such as wild boars try to invade the fields and touch the wires, the animals receive an electric shock. Once an animal is electrocuted, it learns and remembers the pain and fear, and will no longer approach the electric fence.

[0003] An electric fence is made up of an electric wire, a number of posts that support the wire at a certain height, supports that secure the wire to the posts, a power supply that supplies electricity to the wire, and an earth that connects the power supply to the ground. When an animal touches the wire, electricity flows through the animal's body, reaches the ground, and then returns to the power supply via the earth, passing electricity through the wire.

[0004] For an electric fence to be effective, the wires and the ground must be insulated. If weeds grow thick and come into contact with the wires, electricity will leak through the weeds, significantly reducing the effectiveness of the electric fence. Therefore, to maintain the effectiveness of the electric fence, it is necessary to remove weeds near the wires to prevent electricity leaks.

[0005] As mentioned above, to maintain the effectiveness of an electric fence, it is essential to prevent electric leakage, so insulating posts are used (Non-Patent Document 1). Various supports have been proposed for supporting electric wires on posts (Patent Documents 1, 2, 3). These function as insulators and there is no risk of electric leakage from the electric wire to the ground even during rainfall, but they have the drawback of being expensive due to the somewhat cumbersome installation on the posts and their somewhat complex configuration. In the case of an electric fence surrounding a small area of ​​rice field, using this type of electric wire support device does not impose a large burden, but the cost and labor required to install an electric fence with a total length of up to 1 km is very high. Clip-type insulators are available as supports that are low-cost, easy to attach to poles, and simple to fasten electric wires to (Patent Documents 4, 5, 6, Non-Patent Documents 2, 3, 4). Low-cost clip-type insulators are called hook insulators or hook insulators, but they are made of stainless steel and are conductive (Non-Patent Documents 2, 3, 4). Therefore, because there is a risk of electric leakage, they cannot be used on resin-coated steel pipe poles, and are used on non-conductive poles.

[0006] As mentioned above, clip-type stainless steel wire supports can be easily attached to posts, and fixing the wire is easy and inexpensive, so they are widely used when installing electric fences with long total lengths because they reduce the labor and cost of installation. However, if the surface of the post becomes completely wet during rainfall, the electricity in the wire may flow from the stainless steel wire support through the water film on the surface of the post to the ground, causing a leakage current. As a result, the effectiveness of the electric fence is significantly reduced. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent Publication No. 08-249962 [Patent Document 2] Patent Publication No. 2011-3411 [Patent Document 3] Patent Publication 2011-113698 [Patent Document 4] Mito 3180547 [Patent Document 5] JP 09-201140 [Patent Document 6] Ito1298271 [Non-patent literature]

[0008] [Non-Patent Document 1] 2. Parts used for electric fences, Bird and Animal Pest Control.com, https: / / www.choujuhigai.com / c / electric-fence-lp / electric-fence-lp03 [Non-Patent Document 2] Hook insulator, https: / / apollo-area.jp / area-system-large / [Non-Patent Document 3] Hook insulator, https: / / www.getter.co.jp / product_info17.html [Non-Patent Document 4] Clips, what you need to install an electric fence, easy installation method and tips for electric fences, https: / / www.kyowatecno.jp / electric_fence / Summary of the Invention [Problem to be solved by the invention]

[0009] The problem that the present invention aims to solve is to provide an electric fence post that does not cause leakage current even during rain when an electric wire is supported on the electric fence post using a stainless steel clip-type electric wire support device. [Means for solving the problem]

[0010] As a result of intensive research, the inventors of the present application came up with the idea that it is possible to prevent leakage of electricity from the wires to the ground through the water film on the surface of the pole by blocking the film of water that covers the entire surface of the pole during rainfall (hereinafter referred to as the water film) between the contact part of the pole with the ground and the lowest wire support part of the pole.The inventors then came up with the idea that it is possible to block the water film on the surface of the pole above the cylindrical mounting part of the pole and the water film on the surface of the pole below the cylindrical mounting part of the pole by attaching a cylinder with an inner diameter slightly larger than the outer diameter of the pole below the lowest wire support part of the pole and providing a space between the surface of the pole and the inner surface of the cylinder at this part.

[0011] The cylinder is called the water film blocking member. The post is called the post member. That is, the electric fence post according to the present invention has a post member and a water film blocking member. The distance between the inner surface of the water film blocking member and the surface of the post member facing it is preferably about 3 mm to 1 cm. The length of the water film blocking member is suitably 5 cm to 10 cm.

[0012] The water film blocking member can be fixed to the support member by providing a fixing member that connects the inner surface of the water film blocking member to the surface of the support member, and adhering the fixing member to the inner surface of the support member and the water film blocking member. Another example of a fixing method is to use a ring-shaped fixing member. The inner diameter of the ring of the fixing member is made equal to the outer diameter of the support member, and the outer diameter of the ring is made equal to the inner diameter of the water film blocking member. The support member is then fitted inside the ring of the fixing member, and the ring portion is further fitted inside the cylinder of the water film blocking member, thereby fixing the support member and the water film blocking member in the fixed state. Department The fixing member may be fixed to the support member and the water film blocking member with an adhesive or the like, but an elastic material such as rubber may be used as the material for the fixing member, and the fixing member, the support member and the water film blocking member may be fixed by friction between the fixing member, the support member and the water film blocking member. In this case, the user can separate the support member, the water film blocking member and the fixing member, and the height at which the water film blocking member is attached can be adjusted to match the support height of the lowest electric wire.

[0013] The electric fence post of the first invention comprises a post member and a water film blocking member that blocks the water film that forms on the surface of the post member during rainfall between the electric wire support part of the post member and the contact part of the post member with the ground, and is characterized in that the water film blocking member is attached midway between the electric wire support part of the post member and the contact part of the post member with the ground.

[0014] The electric fence post according to the second invention is the electric fence post according to the first invention, wherein the water film blocking member is cylindrical, and the water film blocking member is a cylindrical support member. Penetrate The cylindrical water film blocking member is attached to the support member so as to be in contact with the surface of the support member. circleA space is provided between the inner surface of the cylindrical water film blocking member and the surface of the support member, and the water film blocking member is attached to the support member via a fixing member, and the fixing member is ring-shaped, and the inner diameter of the ring is equal to the outer diameter of the cross section of the support member and the outer diameter of the ring is equal to the inner diameter of the water film blocking member. The support member is fitted inside the ring of the fixing member, and the ring part is further fitted inside the cylinder of the water film blocking member, thereby the support member and the water film blocking member are fixed. Department The water film blocking member is fixed via a fixing member, and is characterized in that the fixing member is provided at only one location, midway between the upper and lower ends of the water film blocking member, or at two locations in total, one at the upper end of the water film blocking member and one at the midway point. Effect of the Invention

[0015] The electric fence post of the present invention prevents leakage of electricity even during rainfall when an electric wire is supported on the electric fence post using a stainless steel clip-type electric wire support device. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a front view of an electric fence post according to a first embodiment of the present application. [Diagram 2] FIG. 1 is a plan view of an electric fence post according to a first embodiment of the present application. [Diagram 3] FIG. 1 is a cross-sectional view of an electric fence post according to a first embodiment of the present application. [Figure 4] FIG. 2 is a diagram showing an electric fence post according to the first embodiment of the present application to which a stainless steel clip-type electric wire support is attached. [Diagram 5] FIG. 1 is a diagram showing a state in which an electric wire is supported using an electric fence post according to a first embodiment of the present application. [Figure 6] FIG. 11 is a front view of an electric fence post according to a second embodiment of the present application. [Figure 7] FIG. 4 is a cross-sectional view of an electric fence post according to a second embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Next, an embodiment of the present invention will be described. However, it goes without saying that various changes and modifications can be made without departing from the technical scope of the present invention. EXAMPLES

[0018] Figure 1 shows a front view of one embodiment of an electric fence post according to the present invention. The electric fence post 1 has a water film blocking member 3 in the middle of a support member 2. Figure 2 is a plan view of this electric fence post 1. The water film blocking member 3 is fixed to the support member 2 via a fixing member 4. The fixing member 4 is ring-shaped, and the inner diameter of the ring is equal to the outer diameter of the cross section of the support member 2, and the outer diameter of the ring is equal to the inner diameter of the water film blocking member 3. The support member 2 is fitted inside the ring of the fixing member 4, and further the ring portion is fitted inside the cylinder of the water film blocking member 3, thereby fixing the support member 2 and the water film blocking member 3. Department It is fixed via material 4.

[0019] The support member 2 is made of a non-conductive material. Figure 3 is a vertical cross-sectional view of the electric fence support member. The water film blocking member 3 is fixed to the support member 2 via a fixing member 4. The water film that forms on the surface of the support member 1 above the attachment position of the water film blocking member during rainfall is blocked from the water film that forms on the outer surface of the water film blocking member because there is a space between the support surface and the inner side of the water film blocking member, and electricity does not flow from above the attachment position of the water film blocking member on the support member 1 to the water film blocking member.

[0020] In addition, even if there is a lot of rainfall and water accumulates above the fixing member 4 on the inside of the water film blocking member 3, the water level reaches the top of the water film blocking member, and the water film generated on the surface above the water film blocking member mounting position of the support member 1 and the water film generated on the outer surface of the water film blocking member are electrified, the water film on the outer surface of the water film blocking member and the water film on the surface below the water film blocking unit mounting portion of the support member 2 are blocked because there is a space between the support surface and the inner surface of the water film blocking member, and electricity does not flow from the water film blocking member to the lower part of the water film blocking unit mounting portion of the support member. Therefore, when the electric fence support of this embodiment is used and the electric wire is supported by a stainless steel clip-type electric wire support, electricity does not leak to the ground during rainfall.

[0021] 4 shows an embodiment of an electric fence post with a stainless steel clip-type electric wire support attached to it. A water film blocking member 3 is attached below the attachment position of the stainless steel clip-type electric wire support 5 that supports the lowest electric wire of the electric fence post 1.

[0022] Figure 5 shows an embodiment of an electric fence post used to support an electric wire. An electric fence post 1 has a water film blocking member 3 below the position where a stainless steel clip-type electric wire support 5 that supports the lowest electric wire 6 is attached and above the contact part of the post 1 with the ground 7. EXAMPLES

[0023] FIG. 6 shows a front view of another embodiment of the electric fence post according to the present invention. The electric fence post 1 according to this embodiment differs from the electric fence post according to the first embodiment in that it has two fixing members 4 for fixing the water film blocking member 3 to the post member 2. One of the fixing members 4 is attached to the top of the water film blocking member 3 so as to seal the cylindrical upper end of the water film blocking member. FIG. 7 shows a cross-sectional view of the electric fence post according to this embodiment. The post member 2 and the water film blocking member 3 are fixed to the post member 2 via the fixing member 4 attached to the top of the water film blocking member 3 so as to seal the cylindrical upper end of the water film blocking member, and the fixing member 4 attached to the middle between the upper end and the lower end of the cylinder of the water film blocking member.

[0024] During rainfall, the water film that forms on the surface of the support member 1 above the attachment position of the water film blocking member connects to the water film that forms on the surface of the upper fixing member 4 and also connects to the water film that forms on the outer surface of the water film blocking member, but the water film on the outer surface of the water film blocking member and the water film on the surface below the water film blocking unit attachment part of the support member 2 are blocked because there is a space between the support surface and the inner surface of the water film blocking member, and electricity does not flow from the water film blocking member to below the water film blocking unit attachment part of the support member. Therefore, when the electric fence support according to this embodiment is used and an electric wire is supported by a stainless steel clip-type electric wire support, electricity will not leak to the ground during rainfall. [Industrial Applicability]

[0025] By using the electric fence post of the present invention, an electric fence can be installed without the risk of electric leakage even during rain using a stainless steel clip-type electric wire support that is low-cost and easy to attach to the post and to secure the electric wire. [Explanation of symbols]

[0026] 1 Electric fence post 2 Support members 3 Water membrane blocking material 4 Fixing member 5. Stainless steel clip-type wire support 6 electric wire 7 ground

Claims

[Claim 1] An electric fence post, comprising: A support member; a water film blocking member that blocks a water film formed on the surface of the support member during rainfall between the electric wire support part of the support member and the contact part of the support member with the ground; The water film blocking member is attached to the support pole member between the electric wire support portion and the contact portion of the support pole member with the ground, The water film blocking member is cylindrical, The water film blocking member is attached to the support member so that the support member penetrates the cylinder of the water film blocking member, The inner surface of the cylindrical water film blocking member is not in contact with the surface of the support member, and a space is provided between the inner surface of the cylindrical water film blocking member and the surface of the support member, The water film blocking member is attached to the support member via a fixing member, The fixing member is ring-shaped, the inner diameter of the ring is equal to the outer diameter of the cross section of the support member, and the outer diameter of the ring is equal to the inner diameter of the water film blocking member. The support member is fitted inside the ring of the fixing member, and the ring portion is further fitted inside the cylinder of the water film blocking member, thereby fixing the support member and the water film blocking member via the fixing member. The fixing member is provided at only one location between the upper and lower ends of the water film blocking member, or at two locations in total, one location at the upper end of the water film blocking member and one location at the middle. An electric fence post characterized by:

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