JPH0472491B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used to separate grazing areas for livestock animals such as cows, pigs, and sheep in ranches, etc., and is capable of shelving animals using electric shocks using conductive wires. Related to electric livestock racks that prevent

[Prior art]

BACKGROUND ART Conventionally, various types of racks have been designed and used on farms to prevent animals such as cows and horses from escaping, or to separate grazing areas for livestock animals and raise them while growing pasture.

Such shelving for livestock is divided into outer shelves and inner shelves depending on the installation location, and functionally divided into permanent shelves and simple movable shelves. In general, a durable permanent shelf is used for the outer shelf, and a permanent shelf or a simple movable shelf is used for the inner shelf depending on the grazing method.

Traditionally, when it comes to permanent shelves, shelves using barbed wire are common, but shelves using barbed wire can injure precious livestock and have poor snow resistance (damage due to the weight of snow). (Because of this, it is necessary to take down the overhead wire in the fall and raise it up in the spring.) Because barbed wire is left on the ground during the winter, it is prone to rust, deteriorates quickly, is easily shed by animals, and has problems such as high maintenance costs. .

In response, an electric cattle rack has been proposed that uses conductive wire as a shelf and applies a high voltage to it, and when an animal touches it, it receives an electric shock, which prevents animals from approaching the shelf. .

However, such electric racks have problems with the durability of the electrically insulated parts, and even if they could be made, the cost would be higher than the barbed wire racks mentioned above, so simple shelves or movable shelves would be required. It was only used as a permanent shelf, and it was difficult to put it into general use as a permanent shelf.

[Purpose of the invention]

An object of the present invention is to provide a permanent electric cattle rack that eliminates the problems of the conventional cattle racks, has excellent workability, does not injure livestock, is highly durable, and is economically superior. be.

[Structure of the invention]

The electric cattle rack of the present invention that achieves the above object includes main piles that are firmly fixed in the ground and are insulatively connected to the ground surface by conductive wires that can be expanded and contracted at high tension with respect to the main piles. , an electric cattle rack in which the conductive wire is connected to a high voltage generator, and the conductive wire between the main stakes is connected to a support whose base is fixed underground, and a support whose base is placed on the ground surface. It is characterized in that its ground clearance is maintained at predetermined intervals by at least one type of the two types of struts.

〔Example〕

Examples will be described below with reference to the accompanying drawings.

FIG. 1 shows the structure of the main piles installed at both ends of the electric cattle rack of the present invention.

The main pile 1 is divided into an above ground part 1A and an underground part 1B, and between the above ground part 1A of the two main piles 1, a conductive wire 6 such as a hard steel wire is tensioned at an average of 150 kgf per wire. , four conductive wires 6 are stretched as shown in the figure. In this case, a force of 600 kgf will be applied to one of the main piles 1, so in order to sufficiently withstand this force, the main pile 1 is usually made of a cylinder with an outer diameter of 20 to 25 cm or a square pillar with a side of about 20 cm, etc. It is made of lumber such as pine wood or reinforced concrete with a length of about 1 m and underground length of about 1 m.

In order to prevent the main pile 1 from falling due to the conductive wires stretched above the ground, two horizontal beams 2 and 3 are installed in the underground part 1B at right angles to the main pile 1 and below the ground of the main pile 1. They are attached so as to sandwich the middle part 1B at different upper and lower positions. Further, a stay member 4 is provided at a location slightly below the midpoint of the above-ground part 1A of the main pile 1, diagonally toward the side where the conductive wire is stretched.
A crosspiece 5 is attached to the tip portion 4A buried in the ground.

The conductive wires 6 stretched on the main pile 1 constructed in this way are gathered into a single conductive wire 6 by a joint clamp 8, and connected to the ground via a power supply line 9 as shown in FIG. It is connected to the installed high voltage generator 7. In the section where the conductive wire 6 is stretched, a support (post) whose base 11 is fixed underground is installed.
10 and a post (baton) 20 with a base 21 placed on the ground surface at a predetermined interval, for example, the post 10
The batons 20 are provided at 50 m intervals, and the batons 20 are provided at 7 to 10 m intervals to ensure the line spacing between the plurality of conductive wires 6 and the ground clearance.

FIGS. 3 and 4 show the engaged states of the post 10 and the conductive wire 6 and the baton 20 and the conductive wire 6. FIG.

The conductive wire 6 is loosely engaged with the post 10 whose base portion 11 is fixed in the ground, and the conductive wire 6 is movable relative to the post 10. Figure 3A
This example is the simplest configuration example, in which U-shaped staples 13 are driven into the above-ground part 12 of the post 10 made of insulating material at each height of the conductive wire 6, and the conductive wire 6 is passed through it. In the example shown in B, a through hole 14 having an inner diameter larger than the diameter of the conductive wire 6 is bored in the above-ground part 12 of the post 10, which is also made of an insulating material. A conductive wire 6 is movably supported. 3C is an example in which a spiral holder 15 is used to engage the conductive wire 6 and the post 10, and FIG. 3D is an example in which the post 10 is a conductor, and the holder is An insulator 15' made of an insulating material such as ceramic is used.

Note that the engagement between the conductive wire 6 and the post 10 is not limited to the above-described embodiment, and may be engaged with any other method as long as the conductive wire 6 is movable with respect to the post 10 and is insulated from the ground. Anything is fine.

Next, the engagement between the baton 20 and the conductive wire 6, in which the base 21 is only placed on the ground surface and not fixed, is an engagement in which the conductive wire 6 is immovable with respect to the baton 20. The conductive wire 6 is fixed to the baton 20. In the example of FIG. 4A, the conductive wire 6 is connected to the clamp 2.
In the example shown in FIG. 2, the baton 20 is composed of a first baton 20A and a second baton 20B fitted outside the first baton 20A. 2nd baton 20A,
It is sandwiched between 20B.

As described above, the electric livestock rack of the present invention is formed by using at least one of the two types of supports, the post 10 or the baton 20, which engage with the conductive wire 6. Although it is easiest to construct shelves on flat land, in reality, pastures are often constructed on hilly or mountainous areas. Therefore, when a trough V as shown in FIG. 5 exists in the conductive wire tensioning section, posts 10 are installed on both sides of the trough V, and posts 10 are installed in the trough V so that the base 11 can swing. ′ is installed. This post 10' is provided with a ring 17 on the top of an anchor 16 buried underground.
7 is engaged with a hook 18 projecting from the base 11 of the post 10'.

In addition, when a hill exists in the conductive wire tensioning section, the base 11 is attached to the hem S of the hill H as shown in FIG.
A post 10' that can swing is installed, and a post 10 with a fixed base is installed on the hill H.

FIG. 7 is a plan view of the electric livestock shelf of the present invention which is stretched, showing how the livestock shelf is bent at predetermined locations by the posts 10. When installing the shelving rack by bending it, as shown in FIG. 8A, provide a bent through hole 14' in the post 10,
The conductive wire 6 can be passed through the through hole 14' through the insulating tube 19, or the post 10 can be passed through the through hole 14' as shown in FIG.
A rod-shaped insulating holder 30 is attached to the side surface of the holder 30, and the conductive wire 6 is held in a cutout groove 31 provided in the holder 30.

In addition, as shown in FIG.
The second engaging portion 32A may be extended and an insulator 33 may be connected to the tip thereof, and the conductive wire 6 may be passed through the insulator 33. Furthermore, at this time, an elastic member may be interposed in the middle of the engaging portion 32A. FIG. 8D shows an example in which the conductive wire 6 is supported by two holders 34 attached to the post 10 and bent. As described above, in the electric livestock shelf of the present invention, by attaching various holders to the posts 10, the direction in which the conductive wires 6 are stretched can be changed.

Further, as for the conductive wire 6 stretched between the main piles 1, the conductive wire 6 itself is indicated by the arrow N-- as shown in FIG. 9A.
Although a hard steel wire 6 that expands and contracts in the N direction may be used,
As shown in B, a combination of a non-stretchable conductive wire 6 and a conductive spring 36 may be used, or as shown in C and D, a part or all of the hard steel wire 6 may be provided with a corrugated portion 37.
or a plurality of hard steel wires 6a, 6b.
The conductive wire 6 may also be made by knitting the wires.

The number of conductive wires 6 stretched between the main piles 1 may be changed depending on the type of grazing animal, and is, for example, about two for cattle and about four for sheep.

The electric cattle rack of the present invention configured as described above uses an electric shock to instill fear in livestock animals that touch the shelf and prevent them from approaching the shelf, so the shelf itself does not need to be strong. , the number of stages of conductive wires, the spacing between posts and batons, and the height of shelves can be significantly reduced, and the simple configuration eliminates the risk of shelves falling off.

Furthermore, the construction method of the electric farm shelf of the present invention has also been improved. In other words, the conventional method of constructing a cattle shelf was to first erect pillars at a predetermined pitch (3 to 4 m) at the planned site, and then connect wires to the posts, but the electric cattle shelf of the present invention The construction method is the opposite of the conventional one, in which lines are first stretched between the main piles, and appropriate supports are inserted between them to ensure an appropriate height.
This will speed up construction.

Furthermore, it has a flexible structure that conventional barbed wire shelves do not have, making it snow resistant. Therefore, "fall down, spring up"
This eliminates the need for the costly work of removing all the overhead wires from their posts in the fall and then reinstalling them on the posts in the spring, which is said to be a costly process. This is because the electric cattle rack of the present invention has a flexible structure because the conductive wire has elasticity, and when the weight of snow is added, the baton that is not fixed to the ground will fall down by itself due to the weight of snow, and the snow will disappear. This is because it rises naturally due to the tension of the conductive wire.

In addition, in areas where there is a risk of the post breaking from its base due to the weight of snow, such as in areas with heavy snowfall, the 10th
a removable portion on the post 10 as shown in the figure;
For example, the separate overhead wire support part 10A fitted to the post 10 or the baton 20 fixed to the post 10 with a locking tool 10C etc. are made to be detachable from the post main body 10B, and are located in this removable part. The removable portion may be configured to come off the post 10 and fall to the ground together with the baton 20 when a load greater than the load is applied.

In addition, since the conductive wire 6 does not have barbs like barbed wire, it may damage the skin of animals that come into contact with the shelf.
There is no need to worry about the sheep's wool getting caught or falling out. Moreover, the thorns will not rust and fall off, causing animals to step on them and become injured or sick.

[Structure of the invention]

As explained above, the electric cattle rack of the present invention is insulated from the ground surface by a conductive wire that can be expanded and contracted at high tension between the main piles that are firmly fixed in the ground. , this conductive line is an electric cattle rack connected to a high voltage generator, and the conductive line between the main piles is connected to a column whose base is fixed underground and a column whose base is placed on the ground surface. Because the ground clearance is maintained at a predetermined interval by at least one of the two types of supports, it has excellent workability.
It is effective in that it does not harm livestock, is highly durable, and is economically superior.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of the main pile of the electric farm shelf of the present invention, FIG. 2 is a partial side view showing the structure of the electric farm shelf of the present invention, and FIGS. 3 A to D are each of the present invention. A perspective view of an example of a post used for an electric livestock shelf,
FIGS. 4A and 4B are a side view, a perspective view, and a fifth embodiment, respectively, showing the structure of the baton of the electric cattle rack of the present invention.
Figure A is a partial side view showing the aspect of the valley part of the electric livestock shelf of the present invention, Figure B is an enlarged view of the K part of A, and Figure 6 shows the aspect of the hill part of the electric livestock shelf of the present invention. FIG. 7 is a partial side view, and FIG. 8 is a plan view of the electric livestock shelf of the present invention.
Figures A to D are a cross-sectional view, a perspective view, a perspective view, a plan view, and Figure 9
-D are partial side views showing aspects of the conductive wire used in the livestock shelf of the present invention, and FIGS. 10A and 10B are perspective views showing the configuration of the removable portion attached to the post, respectively. 1... Main pile, 6... Conductive wire, 7... High voltage generator,
10... A post whose base is fixed underground;
15'... Insulating member (insulator), 20... Pillar (baton) whose base is placed on the ground surface, 36... Spring, 3
7...Wavied portion.

Claims (1)

[Claims] 1 Between the main piles that are firmly fixed in the ground, the main piles are insulatively connected to the ground surface by a conductive wire that can be expanded and contracted under high tension, and this conductive wire is connected to a high voltage. It is an electric cattle rack connected to a generator, and the conductive wire between the main piles is connected to two types of pillars: those whose bases are fixed underground and those whose bases are placed on the ground surface. , an electric livestock rack, characterized in that its ground clearance is maintained at predetermined intervals by at least one type of support. 2. A patent in which the conductive wire is movably engaged with a column whose base is fixed underground, and the conductive wire is immovably engaged with a column whose base is placed on the ground surface. An electric cattle rack according to claim 1. 3. The electric cattle rack according to claim 1, wherein the overhead wire supporting portion of the post whose base is fixed underground is configured to detach from the post body when a predetermined force or more is applied. 4. The electric livestock rack according to claims 1 and 2, wherein the support columns are made of an insulating material. 5. The electric cattle rack according to claims 1 and 2, wherein the conductive wire is insulated from the ground surface by an insulating member interposed between the support and the conductive wire. 6. The electric livestock shelf according to claims 1 to 4, wherein the conductive wire itself is a telescopic wire that can be stretched under high tension. 7. The electric livestock shelf according to claims 1 to 4, in which an expandable and contractible conductive member is interposed at a predetermined location of the conductive wire. 8. The electric livestock rack according to any one of claims 1 to 4, wherein part or all of the conductive wire is formed into a wavy or braided shape.