JP2016192921A - Corner post of simple fence for animals - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corner post of a simple fence for animals which can absorb a tensile force by a wild animal exerted on a wire stretched by a post for an electric fence and can be restored to an original state after release of the tensile force.SOLUTION: A corner post CP of a simple fence for animals holding at corner parts wires 2 arranged on an electric fence 10 installed around a crop land C is formed of: a first post 1 erected on a ground surface and having elasticity; wiring tools 6 plurally arranged at predetermined intervals on the first post 1 and holding the wires 2 so as to change holding positions; and at least one second post 3 fixed obliquely at a base part with respect to the ground surface, connected with the first post 1 at a tip with a connection tool 4 so as to be able to oscillate, and having elasticity. A tensile load exerted from the wires 2 to the corner post CP is handled by deformation of the first and second posts 1, 3 and change of the wire holding positions by the wiring tools 6. After extinguishment of the tensile force, an elastic force of the first and second posts 1, 3 performs restoration to an original state to prevent the wires 2 from being cut.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a corner post of a simple fence for animals, and in particular, when a wire or conductive wire is stretched in a simple fence for animals such as a pasture fence or an electric fence that is simply installed, the wire is stretched on the left and right sides of the post. Relates to the improvement of the corner post.

  With the expansion of abandoned cultivated land in Japan, there are attempts to graze livestock such as cattle, goats and pigs in the abandoned cultivated area. When grazing livestock in abandoned farmland, animal fences are provided to prevent livestock from leaving the abandoned farmland. On the other hand, in recent years, wild animals living in mountain forests have fallen to the villages and eaten and devastated crops. As measures to prevent livestock grazing or prevent wild animals from entering the cultivated land, posts (posts) are installed around the cultivated land at appropriate intervals and surrounded by animal fences. For such animal fences, pastoral fences are used in which wires are placed between posts or fences are attached between posts.

  However, animal fences using wires and fences are often easily broken by livestock and wild animals. For this reason, an electric fence for animals is widely used in which a wire stretched around a post is a conductive wire (hereinafter simply referred to as a wire), a high voltage is applied to the wire, and livestock and wild animals that touch the wire are driven away by an electric shock. It's getting on.

  The electric fence is installed on a post that is installed around the cultivated land where it is desired to prevent the invasion of animals, with the wire insulated from the ground, and connected to a high voltage generating power source. A fence that energizes voltage electricity at regular time intervals. The electric fence is effective in preventing an animal frightened by a shock from approaching the wire because an electric shock is given to the animal when the animal touches the wired wire. Wires for applying high-voltage electricity are installed by attaching an insulator to the post and laying the wire parallel to the ground by forming the post with an insulating material.

  However, in the overhead wire method where a wire is attached to a post and stretched parallel to the ground, when the wire is caught by an animal's leg or corner due to the invasion of an animal and pulled, the tensile load is applied to the nearby post and the wire If there is no extension, the wire will be cut, the insulator that runs over the wire will break, or the post will buckle. When the wire is not fixed on the insulator, the load (tensile load) generated by the wire being pulled is applied to the corner post installed at the corner of the fence. If the tensile load applied to the corner post is within the physical tolerance of the corner post, the wire may break. Further, when the wire is strong, there is a problem that it does not function as an electric fence due to deformation or destruction of the corner post.

  Therefore, in the pastoral fence disclosed in Cited Document 1, the corner post (central pillar) is supported by a branch line having a fixed point on the outer side of the pastoral fence, and main pillars are provided at left and right positions away from the corner post, The corner posts and the main pillar are reinforced by connecting them with connecting bars and turnbuckles. Further, the main pillar is held by an oblique support having one end fixed to the ground. In addition, in the electric pasture fence disclosed in Patent Document 2, two crossbars are attached in parallel as reinforcement frames to portions of different depths in the underground portion of the corner post (main pile), and one end of the main pile is grounded. It is held by slanting struts fixed to A cross is also attached to the underground part of the diagonal support.

  On the other hand, as an opposite idea of constructing a corner post strongly, Patent Document 3 proposes a method in which a plurality of wires are stretched parallel to the ground using posts made of a flexible material.

JP-A-50-110875

JP 61-31031 A

JP 2009-195229 A

  However, the corner posts disclosed in Patent Document 1 and Patent Document 2 are equipped with a large number of reinforcing members for preventing the corner posts from collapsing. There was a problem. Further, in the post disclosed in the cited document 3, an inexpensive post using a flexible material is manufactured, and when this is installed in a corner portion that changes the direction in which the wire is stretched, When a large load (tension) was applied to one wire, the other wires loosened, and all the wires could not be installed horizontally, reducing the effectiveness of the fence, or the function of the fence was lost. Furthermore, since the post disclosed in Cited Document 3 is composed of a single columnar body, when this post is installed at the corner, the animal enters the stretched wire and the animal's legs and corners are caught by the wire, When an excessive load is instantaneously applied, there is a problem in that it remains curved or breaks and cannot be restored to its original shape and collapses.

  The object of the present invention is that even if the wire of the animal simple fence is pulled by the animal and the corner post is deformed by the tensile force, the corner post is formed by the plurality of posts that form the corner post after the animal pulls the tensile force. It is intended to provide a corner post of a simple fence for animals that can restore the original state and eliminate the possibility of wire cutting.

  According to one form, in the animal fence which prevents passage of animals, it is a corner post of the simple fence for animals installed in the corner part which changes the extending direction of a wire, Comprising: The post which has at least 1 elasticity Including a plurality of posts, and a wire mounting portion that is provided at least in one of the plurality of posts and holds and stretches the wire, and has elasticity among the plurality of posts. At least one of the posts is erected in a direction perpendicular to the ground, and the remaining posts are slidably connected to each other by a linking member with respect to the posts erected with respect to the ground. Is provided with a pulley capable of changing the holding position of the wire by rotating, and when a tensile force acts on the wire, the post standing on the ground is elastically deformed, The wire is moved away from the post placed on the ground within the range of the inner angle formed by the wire stretched on the post from the original position to change the holding position of the wire, and the tensile force on the wire disappears In such a case, a corner post of a simple animal fence is provided, which is restored to return the pulley to its original position.

  According to the corner post of the animal simple fence of the present invention, even if a wire stretched on the animal simple fence is pulled by the animal and a large tensile force is applied to the corner post, the post and the auxiliary post having elasticity It is possible to absorb the tensile force and return the corner post to the original state after the tensile force is lost, and there is an effect that it is possible to prevent the breakage of the post, the breakage of the wire, and the occurrence of loosening.

(A) is a perspective view which shows the structure of an example of the electric fence which hold | maintained the wire inside the corner post, (b) is the perspective view which shows the corner post of the other example of the electric fence which held the wire outside the corner post. It is. (A) is a perspective view showing a modified example of a corner post when a tensile force from a wire is applied to the corner post shown in FIG. 1 (b), and (b) is a corner post shown in FIG. 1 (b). It is a perspective view which shows the modification which installed the auxiliary | assistant post. (A) is a side view of an independent corner post of a simple fence for animals, and (b) is a side view showing a state where the corner post shown in (a) is buckled and collapsed by a tensile load. (A) is a side view of a corner post reinforced by an auxiliary post of a simple fence for animals, and (b) is a side view showing a state in which the corner post shown in (a) is buckled and collapsed by a tensile load. (A) is a plan view of an example of an animal fence provided with corner posts at four corners, (b) is a plan view showing a state in which an animal hooks the wire of the animal fence shown in (a), (c) is It is a top view which shows the state which the animal further pulled the wire from the state shown to (b). (A) is a top view which shows the state of a wire when the animal is not contacting the animal fence provided with the corner post of this invention in four corners, (b) is an animal in the inside of the animal fence shown to (a). (C) is a plan view showing a state in which the animal has pulled the wire of the animal fence shown in (a) outward. In a rectangular animal fence with a side of 50 m, the wire was pulled 4 m inward when the wire rod attached to one of the four corner posts was made movable inside the animal fence. It is explanatory drawing which expands and calculates the moving amount | distance S1 of one overhead wire tool which can move at time by CAD. In a rectangular animal fence with a side of 50 m, the wire was pulled 4 m inward when the wire rod attached to two of the four corner posts was made movable inside the animal fence. It is explanatory drawing which calculates and enlarges the movement amount S1 of the two movable overhead wire tools at the time by CAD. (A) shows the basic structure of the corner post based on the basic concept of the corner post of the animal simple fence in the present invention, and when the post included in the corner post and the auxiliary post are formed of elastic members. Side view, (b) is a side view showing a first deformed state of the corner post and the auxiliary post when a tensile load from the wire is applied to the corner post shown in (a), and (c) is (a). It is a side view which shows the 2nd deformation | transformation state of a corner post and an auxiliary | assistant post when the tensile load from a wire is applied to the corner post shown in FIG. (A) is a perspective view which shows the structure of the 1st Example of the corner post of the 1st form of this invention, (b) is a top view of the corner post shown to (a). (A) is an assembly perspective view of the connection member used for the 2nd example of the corner post of the 1st form of the present invention, and (b) is a top view after the assembly of the connection member shown in (a). . (A) is the elements on larger scale which show the state of the connection part of the corner post of 2nd Example which uses the connection member shown in FIG.11 (b), (b) is the 2nd shown in (a). It is explanatory drawing which shows the deformation | transformation of the corner post of an Example. (A) is an assembly perspective view of the connection member used for the 3rd example of the corner post of the 1st form of the present invention, (b) is a perspective view after the assembly of the connection member shown in (a). . It is a partial expansion perspective view which shows the state of the connection part of the corner post of the 3rd Example using the connection member shown in FIG.13 (b). (A) is a side view which shows the structure of one Example of the corner post of the 2nd form of this invention, (b) is a corner post when tensile force is applied to the corner post shown to (a) through a wire. It is a side view which shows the deformation | transformation state of an auxiliary post. It is a partial expansion perspective view which shows the state of the connection part of the corner post of the 2nd form shown in FIG. (A) is a side view which shows the structure of one Example of the corner post of the 3rd form of this invention, (b) is a corner post when tensile force is applied to the corner post shown to (a) through a wire. It is a side view which shows the deformation | transformation state of an auxiliary post. (A) is a side view showing the structure of a modified embodiment of the corner post according to the third aspect of the present invention, and (b) is a corner post when a tensile force is applied to the corner post shown in (a) through a wire. It is a side view which shows the deformation | transformation state of an auxiliary post. (A) is a side view showing a specific example of the elastic member in the modified example of the corner post according to the third mode shown in FIG. 18, and (b) is a diagram when a tensile force is applied to the corner post through the wire (a). The side view which shows the 1st state of the expansion-contraction member shown to), (c) is a side view which shows the 2nd state of the expansion-contraction member shown to (a) when tensile force is applied to a corner post through a wire. It is. It is a side view which shows the structure of one Example of the corner post of the 4th form of this invention. FIG. 21 is a partial side view showing the operation of the corner post shown in FIG. 20. (A) is a cross-sectional view of a pulley with a wire detachment provided on the overhead wire, (b) is a cross-sectional view of the pulley showing an example of the shape of a pulley groove provided on the overhead wire, and (c) is shown in (a). The side view in the state where the pulley was attached to the tip of the arm so as to be swingable, (d) is a side view showing an example of a method of attaching the wire to the pulley attached to the overhead wire, and (e) is to the overhead wire It is a side view which shows another example of attachment of the pulley of.

  Hereinafter, embodiments of the present application will be described in detail based on specific examples with reference to the accompanying drawings, but before explaining the examples of the present invention, how the present invention was made, A conventional electric fence will be described as an example. In addition, although the Example shown below demonstrates the corner post used for an electric fence as a corner post used for the simple fence for animals, the corner post of this invention is a simple thing which stretches a wire other than an electric fence. It can also be applied to corner posts of typical animal fences.

  Fig.1 (a) shows the structure of the electric fence 10 installed permanently. For example, the electric fence 10 includes a thick and strong post 1 around the cultivated land C, a plurality of conductive wires 2 stretched in parallel around the post 1, and a power source 9 that generates a high voltage on each wire 2. A high voltage is applied to drive off the wild animals that touch the wire 2 with an electric shock and prevent the animals from passing. The electric fence 10 in this example has a rectangular shape in plan view, and four post 1 for fences are provided at four corners, but the actual permanent electric fence 10 is the cultivated land C. If the distance between the posts 1 is long, the intermediate post is provided in the middle. The wire 2 is a tough metal wire, and is stretched with a tension of about 50 to 150 kgf per wire.

  In the permanent electric fence 10 shown in FIG. 1A, the wire 2 is stretched inside the post 1 by the overhead wire 6, but the wire 2 is inside the post 1 by the insulated overhead wire 6. It is not only the form stretched on. FIG. 1 (b) shows a permanent electric fence 10 </ b> A in which the wire 2 is held outside the post 1. In FIG. 1 (b), the wire 2 is depicted as being directly locked to the outside of the post 1, but in fact, between the post 1 and the wire 2, an insulating type is provided outside the corner post. The overhead wire 6 is provided.

  In the electric fences 10 and 10A, when a wild animal normally touches the wire 2, an electric shock is received. Therefore, a load from the wild animal is hardly applied to the wire 2. However, if for some reason a wild animal rushes into the wire 2 and the wire 2 is pulled as shown by the arrow F on the cultivated land C side as in the example of the electric fence 10A shown in FIG. Due to the applied tensile load from the wire 2, the thick and strong post 1 installed at the corner also falls as shown by the broken line, and the wire 2 between the posts is loosened so that it does not function as a fence.

  Therefore, like the electric fence 10B shown in FIG. 2 (b), the auxiliary post 3 that supports the post 1 from the cultivated land C side is diagonally provided on the cultivated land C side of the post 1 installed at the corner of the electric fence 10B. Reinforcement is performed. In the longitudinal direction of the post 1, an overhead wire 6 for laying the wire 2 is provided at a predetermined interval.

  On the other hand, FIG. 3 (a) is a side view of a general corner post CP of a simple animal fence in which a wire 2 is bridged over an overhead wire 6 provided on a post 1 that is simply installed. In the corner post CP shown in FIG. 3A, the post 1 is thinner than the corner post of a permanent fence and is formed of a material that is physically inferior in strength. In some cases, the post 1 buckles near the ground and collapses due to stress when a wire 2 such as a 0.75 mm resin-coated steel pipe is pulled by an animal. On the other hand, like the corner post CP shown in FIG. 4A, the auxiliary post 3 for the simple fence is attached to the post 1 for the simple fence obliquely from the cultivated land C, and the tip of the auxiliary post 3 is attached to the post. Completely fixing is performed by a connecting member 4 such as a binding wire. However, even in the structure shown in FIG. 4A, when the stress when the wire 2 is pulled by an animal is considerably large, as shown in FIG. 4B, both the post 1 and the auxiliary post 3 are seated. It will bend and the function of the fence may be lost. As described above, even if the post 1 is reinforced with the auxiliary post 3, the corner post CP is bent, and the leading end of the auxiliary post 3 is firmly fixed to the post 1 by the connecting member 4 and there is no degree of freedom. It is done.

  On the other hand, the present inventors set the animal A as shown in FIG. 5B to the rectangular animal permanent fence 5 in which the wire 2 is stretched around the four corner posts CP shown in FIG. And the wire 2 was hooked with the back leg, and as shown in FIG. 5C, the deformation of the animal permanent fence 5 when the animal A invaded far enough was verified. The corner posts CP were set on the outdoor ground, the distance between the corner posts CP of the animal permanent fence 5 in the verification was 50 m, and the wire 2 was movable without being fixed to the corner posts. In this situation, the movement of the wire 2 and the bending of the corner post CP when the wire 2 was pulled were verified.

  As a result, it was found that the length required for the wire 2 not to be cut is surprisingly small when the wire 2 is not fixed to the corner post CP and can be moved compared to the intrusion distance of the animal A. If a momentary tensile load is applied to the wire 2, the corner post CP falls momentarily and the wire 2 moves, and when the corner post CP and the wire 2 return to their original positions when the tensile load is lost, It has been found that the elongation of the wire 2 can be secured, and the corner post CP can be prevented from collapsing and the wire 2 being cut.

  More specifically, for example, in the rectangular animal permanent fence 5 having a side of 50 m shown in FIG. 6A, as shown in FIG. 6B, the animal invades and pulls the wire 2 to the inside by 4 m. Consider the case. In this case, as indicated by arrows, the corner posts CP located on both sides of the pulled wire 2 are separated from the original position within the range of the inner angle formed by the wire 2 stretched on the corner post CP, that is, inward. Assuming that the wire 2 fell about 20 cm, the wire 2 moved as indicated by a broken line, and it was found that the extension allowance of the wire 2 could be secured. Actually, when the animal pulls the wire 2, the animal will dodge before the wire 2 is pulled 4 m inward, and the animal will come off the wire 2, so that the corner post CP will hardly collapse.

  Here, as shown in FIGS. 6B and 6C, in order to confirm the operation of the corner post CP of the animal fence of the present invention that can move the wire 2 when the wire 2 is pulled. Moreover, the present inventors performed two kinds of simulations using CAD, and the results are shown in FIGS.

  FIG. 7 is a view of the wire rod when the wire rod attached to one corner post of the four corner posts is movable inside the animal rail in a rectangular animal rail having a side of 50 m. The amount of movement is calculated. As a result of this calculation, when the wire was pulled inward by 4 m, the movement amount S1 of one movable wire rod was 42.1 cm.

  Moreover, FIG. 8 shows an overhead wire when the overhead wire fixture attached to two corner posts out of the four corner posts is movable inside the animal fence in a rectangular animal fence with a side of 50 m. This is the calculated amount of tool movement. As a result of this calculation, when the wire was pulled 4 m inward, the movement amount S1 of the two movable wire tools was 21.4 cm. Similarly, although not shown in the drawings, when the wire fittings attached to the four corner posts out of the four corner posts are movable to the inside of the animal fence, the movement amount S1 of the four wire fittings is 11. It was found that it was 0.0 cm.

  This situation is the same when an animal inside the rectangular animal permanent fence 5 having a side of 50 m pulls the wire 2 4 m outward as shown in FIG. 6C. Also in this case, the corner posts CP located on both sides of the pulled wire 2 fall inward by about 21.4 cm as indicated by the arrows, and the wire 2 moves as indicated by the broken line, so that the extension allowance of the wire 2 is increased. Can be secured.

  In the above example, both the two corner posts CP and the wire 2 are secured by the movement of the overhead wire, so that the extension allowance of the wire 2 is ensured. However, the number of corner posts CP that can move the wire 2 is effective at any place. is there. Even when the wire 2 is pulled outward under the same conditions as in the above-described verification, when the number of corner posts CP to move is one, the amount of movement of the corner posts CP is 42.1 cm, and when the number is two, 21. When the corner post CP that can move to all 4 places is 4 cm, it is 11.0 cm. Thus, as the number of moving corner posts CP increases, the distance that each corner post CP moves inward can be shortened. In the above example, a rectangular fence with a side of 50 m is described, but the shape of the fence is not limited to a rectangular shape.

  Here, as shown in FIGS. 6B and 6C, when the wire 2 is pulled, the corner post CP of the animal simple fence of the present invention that can move the wire 2 can be Although explained based on an Example, before explaining an Example, the basic structure with which the simple fence for animals based on the basic concept of this invention is used is demonstrated using FIG. The corner post CP of the embodiment described below is formed by a plurality of posts (posts) or auxiliary posts including the corner post having the basic structure shown in FIG. 9, and at least one of the plurality of posts is at least one of the posts. Has elasticity. A post having elasticity is erected on the ground. Even if the post having elasticity is deformed by the tensile force applied to the wire, it is assumed that the post returns to the original position by the elastic force when the tensile force disappears. Furthermore, the wire 2 shall be hold | maintained at the wire harness 6 which can change the holding position in the corner post vicinity of the wire 2. FIG.

  FIG. 9A shows the basic structure of the corner post CP based on the basic concept of the corner post CP of the animal simple fence according to the present invention. The post 1 and the auxiliary post 3 included in the corner post CP are made elastic. It is a side view when formed with the member provided. The post 1 is erected vertically to the ground, one end of the auxiliary post 3 is fixed obliquely to the ground G, and the other end of the auxiliary post 3 is fixed to the post 1 by a connecting member 4. The fixing of the auxiliary post 3 to the post 1 by the connecting member 4 is not particularly limited. In the corner post CP having such a structure, both the post 1 and the auxiliary post 3 are formed of elastic members, and both ends of the auxiliary post 3 are fixed. For this reason, when the wire 2 stretched on the wire 6 attached to the post 1 is pulled and a tensile load is applied to the corner post CP, the post 1 and the auxiliary post 3 are shown in FIG. It changes to the state as shown, or it changes into the state as shown in FIG.9 (c). However, since the post 1 and the auxiliary post 3 of the corner post CP are formed of elastic members, when the tensile load on the corner post CP is lost, the elastic force of the post 1 and the auxiliary post 3 The original state shown in FIG.

  10 (a) and 10 (b) show a first embodiment of the present invention. The post 1 of the corner post CP to be installed at the corner of the electric fence 10 is formed of a material having elasticity, and a connecting member 4 is attached to the tip side thereof, and the two auxiliary posts 3 connected to the connecting member 4 are connected. The base is embedded in cultivated land C and fixed. In this case, the material of the two auxiliary posts 3 may be formed of a material having the same elasticity as that of the post 1 or may be formed of a material softer than the post 1 and having elasticity. The thickness of the post 1 and the two auxiliary posts 3 may be the same, or the thickness of the two auxiliary posts 3 may be made thinner than the thickness of the post 1.

  Furthermore, with respect to the installation point P1 on the cultivated land C of the post 1, the fixed points P2 and P3 on the cultivated land C of the two auxiliary posts 3 are, for example, the line L connecting the fixed points P2 and P3 is the installation point P1. What is necessary is just to provide in the cultivated land C so that it may become the base of an isosceles triangle which makes a vertex. A form in which the base of the post 1 is embedded in the cultivated land C is the first form of the corner post CP of the present invention. In addition, the wire 2 is hold | maintained, for example by the overhead wire 6 provided with the pulley (it mentions later for details), and the pulley is attached to the rotating shaft. For this reason, when the overhead wire 6 moves from the original position, the holding position of the wire 2 can be changed by the rotation of the pulley.

  Further, the connecting member 4 attached to the tip end side of the post 1 is fixed so as not to move up and down with respect to the post 1 and the auxiliary post 3, but the relative angle between the post 1 and the two auxiliary posts 3 is determined. They can move freely and can be displaced from each other. In the first embodiment shown in FIG. 10 (a), two holes 4H are provided in the connecting member 4 fixed to the tip of the post 1, and the tip of the auxiliary post 3 is formed into two holes 4H, respectively. It is inserted. When set in this way, the position of the connecting member 4 on the post 1 does not change, but the mounting angle of the post 1 and the auxiliary post 3 with respect to the connecting member 4 is freely changed. The shape of the connecting member 4 is not limited to the shape of the first embodiment, and may be any shape as long as the tip portions of the two auxiliary posts 3 move freely with respect to the tip portions of the posts 1. .

  FIG. 11A shows a state before assembly of the connecting member 4 attached to the post 1 and the auxiliary post 3 of the corner post CP according to the second embodiment of the first mode of the present invention. The connecting member 4 has three cylindrical bodies 40, 41 and 42. As shown in FIG. 12A, the tip of the post 1 is inserted into a through hole 40H provided in the central cylindrical body 40 and fixed so as not to move on the post 1, and the remaining two cylinders The front end portions of the auxiliary posts 3 are inserted into the through holes 41H and 42H provided in the shaped bodies 41 and 42, respectively, and are similarly fixed so as not to move on the posts 1. A spherical body 44 supported by a shaft 43 is provided at a position opposite to the side surface of the central cylindrical body 40. On the other hand, on the side surfaces of the cylindrical bodies 41 and 42 on both sides, receiving shafts 46 each having a recess 45 for receiving the spherical body 44 are provided.

  The spherical body 44 is fitted into a recess 45 that opens at the tip of the receiving shaft 46. A spherical recess 45S that receives the spherical body 44 is formed in the recess 45, and a slight gap is formed between the spherical body 44 and the spherical recess 45S, so that the receiving shaft 46 is free with respect to the shaft 43. Can be rotated. A structure in which the shaft 43 provided with the spherical body 44 at the tip portion is fitted into the receiving shaft 46 provided with the concave portion 45 having the spherical concave portion 45S and the receiving shaft 46 is freely moved with respect to the shaft 43 is known. Further explanation is omitted.

  FIG. 11B shows a state in which the spherical body 44 of the connecting member 4 shown in FIG. 11A is fitted in a spherical recess 45 </ b> S in the receiving shaft 46. By fitting the spherical body 44 and the spherical recess 45S, the two cylindrical bodies 41 and 42 located on both sides of the central cylindrical body 40 rotate in the direction indicated by the arrow R with respect to the central cylindrical body 40, respectively. And can be slid in the direction indicated by the arrow S.

  FIG. 12A shows the state of the connecting portion of the corner post CP of the second embodiment using the connecting member 4 shown in FIG. 11B. The tip of the post 1 is inserted and fixed to the central cylindrical body 40. Further, the tip ends of the two auxiliary posts 3 are inserted and fixed to the two cylindrical bodies 41 and 42 connected to each other by the receiving shaft 46 on both sides of the central cylindrical body 40.

  FIG. 12B illustrates an example of deformation due to the tensile force of the post 1 and the auxiliary post 3 in the corner post CP of the second embodiment shown in FIG. When the post 1 is deformed to be bent toward the cultivated land C side from the position indicated by the broken line by the tensile force, the two auxiliary posts 3 are also deformed, and the positions of the two auxiliary posts 3 with respect to the post 1 are changed. However, as described in FIG. 11B, the two cylindrical bodies 41 and 42 located on both sides of the central cylindrical body 40 of the connecting member 4 are in the direction indicated by the arrow R and the direction indicated by the arrow S. Since it can move, it can change following this change. When the tensile force applied to the corner post CP is lost, the connecting member 4 returns to the state indicated by the broken line in FIG. 12B due to the restoring force of the post 1 and the two auxiliary posts 3. The fixing points P2 and P3 of the two auxiliary posts 3 in the cultivated land C are inserted with an angle with respect to the ground.

  FIG. 13 (a) shows a state before assembly of the connecting member 4 used for the corner post CP of the third embodiment of the first mode of the present invention. The connecting member 4 in the third embodiment includes three upper plates 11, 12, 13 having the same shape, three lower plates 21, 22, 23, and upper plates 11, 12, 13 and the lower plate having the same shape. And a flexible member 30 having elasticity sandwiched between 21, 22, and 23. The three upper plates 11, 12, 13 and the three lower plates 21, 22, 23 are rectangular (square) plate members having a certain degree of hardness. Screw insertion holes 20 are provided at the same positions of the four corners of the three upper plates 11, 12, 13 and the three lower plates 21, 22, 23, and are slightly smaller than the diameter of the corner post and the auxiliary post at the center. Through holes 16 and 26 having a large inner diameter are provided.

  On the other hand, the flexible member 30 is formed of a flexible material, such as urethane resin, which is thicker than the three upper plates 11, 12, 13 and the three lower plates 21, 22, 23. The flexible member 30 includes overlapping portions 31, 32, 33 that overlap the three upper plates 11, 12, 13 and the three lower plates 21, 22, 23, and a connecting portion 34. Screw insertion holes 50 are provided at the same positions as the upper plates 11, 12, 13 and the lower plates 21, 22, 23 at the four corners of the flexible member 30, and the inner diameter is smaller than the diameter of the corner posts and auxiliary posts at the center. A through hole 36 is provided.

  Three upper plates 11, 12, and 13 are stacked on the upper portions of the overlapping portions 31, 32, and 33 of the flexible member 30, respectively, and three lower plates 21, 22, and 23 are stacked on the lower portion, respectively. And the connecting member 4 is completed. FIG.13 (b) has shown the state after the assembly of the connection member 4 shown to Fig.13 (a). In the assembled connecting member 4, the axes of the through holes 16 in the upper plates 11, 12 and 13, the through holes 26 in the lower plates 21, 22 and 23, and the through holes 36 in the flexible member 30 are aligned. The inner diameter of the through hole 36 provided in the flexible member 30 is smaller than the diameter of the post 1 and the two auxiliary posts 3, but the flexible member 30 is formed of a flexible material. 3 can be inserted by expanding the through hole 36.

  FIG. 14 shows the state of the connecting portion of the corner post CP of the third embodiment using the connecting member 4 shown in FIG. 13B. The connecting member 4 includes the post 1 and two auxiliary members. The state where the post 4 is attached is shown. The post 1 and the two auxiliary posts 3 that pass through the through hole 16 in the upper plate 11, 12, 13 and the through hole 26 in the lower plate 21, 22, 23 are flexible to form the through hole of the flexible member 30. It is fixed by the elastic force of the material. As described above, when the connecting member 4 is in a twisted state, the holes 16 of the upper plates 11, 12, and 13, and the edges of the holes 26 of the lower plates 21, 22, and 23 stand up with respect to the post 1. Thus, the post 1 is prevented from moving in the vertical direction. A fastener for fixing the connecting member 4 to the post 1 more firmly may be attached to the upper portion of the upper plate 12.

  FIG. 15A shows the structure of an example of the corner post CP according to the second mode of the present invention. The corner post CP of the first form was fixed with the base of the post 1 buried in the ground, but the corner post CP of the second form was perpendicular to the post 1A provided outside the cultivated land C. Is held in. That is, in the second embodiment, the auxiliary post 3 is connected to the tip of the post 1 by the connecting member 7 and is fixed to the tip of the post 1A by the connecting member 7. The post 1A is formed of a material having elasticity, and its base is buried and fixed in the ground. Further, the lower end portion of the post 1 does not reach the ground of the cultivated land C, and is connected to the vicinity of the base portion of the post 1 </ b> A by a spring 8. The point that the wire 2 is stretched over the overhead wire 6 provided on the post 1 is the same as the corner post CP of the first embodiment. Note that, as described above, the wire 2 is held by, for example, the overhead wire 6 provided with a pulley (details will be described later), and the pulley is attached to the rotating shaft. For this reason, when the overhead wire 6 moves from the original position, the holding position of the wire 2 can be changed by the rotation of the pulley.

  FIG. 16 shows an embodiment of the connecting member 7 provided at the tip of the post 1 of the corner post CP of the second form shown in FIG. In the connecting member 7 of this embodiment, the side surface of the central tubular body 40 of the connecting member 4 used in the second embodiment of the first mode shown in FIG. It is formed by being bonded to the body 70. About the part provided with the same structure as the connection member 4 used in the 2nd Example of the 1st form in the connection member 7, the same number as the connection member 4 is attached | subjected, and the description is abbreviate | omitted. The cylindrical body 70 is parallel to the cylindrical body 40 by the coupling member 71, and the tip of the post 1 </ b> A is fixed to the cylindrical body 70. The lower end of the post 1 is connected to the base of the post 1A by a spring 8.

  FIG. 15B shows an example of deformation of the post 1 and the auxiliary posts 3 and 5 when a tensile force from the wire 2 is applied to the corner post CP shown in FIG. The front end of the post 1 is connected to the auxiliary post 3 by a connecting member 7 and fixed to the post 1A, and the lower end of the post 1 is connected to the post 1A by a spring 8. For this reason, when the tensile force from the wire 2 is applied to the corner post CP, the auxiliary post 3 and the post 1A are bent toward the cultivated land C side, and the post 1 extends the spring 8 and is not deformed so much that the cultivated land C side. Move to. In this configuration, when the tensile force from the wire 2 is lost, the corner post CP is easily restored to the state shown in FIG. 15A by the restoring force of the auxiliary posts 3 and 5 formed of an elastic material.

  FIG. 17A shows a structure of an example of the corner post CP according to the third mode of the present invention. The corner post CP of the first form was fixed with the base of the post 1 buried in the ground. Further, the corner post CP of the second form is such that the tip 1 of the post 1 is attached to the post 1A provided outside the cultivated land C by the connecting member 7 and the lower end of the post 1 is connected by the spring 8. It was held vertically. On the other hand, the corner post CP of the third form is the same as the second form in that the tip of the post 1 is attached to the post 1A by the connecting member 7. However, it differs from the second embodiment in that the lower end of the post 1 is connected by a spring 8 to an anchor 55 embedded in the ground outside the post 1A. The auxiliary post 3 and the post 1A are made of an elastic material, and the point that the wire 2 is stretched over the wire 6 provided on the post 1 is the same as the corner post CP of the first and second embodiments. . Further, the structure of the connecting member 7 may be the same as the connecting member 7 used in the second embodiment. In addition, the wire 2 is hold | maintained, for example by the overhead wire 6 provided with the pulley (it mentions later for details), and the pulley is attached to the rotating shaft. For this reason, when the overhead wire 6 moves from the original position, the holding position of the wire 2 can be changed by the rotation of the pulley.

  FIG. 17B shows an example of deformation of the post 1 and the auxiliary posts 3 and 5 when the tensile force from the wire 2 is applied to the corner post CP shown in FIG. It is. The tip of the post 1 is connected to the auxiliary post 3 by a connecting member 7 and fixed to the post 1A, and the lower end of the post 1 is connected to an anchor 55 fixed to the ground by a spring 8. For this reason, when the tensile force from the wire 2 is applied to the corner post CP, the auxiliary post 3 and the post 1A are bent toward the cultivated land C side, and the post 1 extends the spring 8 and is not deformed so much that the cultivated land C side. Move to. In this configuration, when the tensile force from the wire 2 is lost, the corner post CP is easily restored to the state shown in FIG. 10A by the restoring force of the auxiliary posts 3 and 5 formed of an elastic material.

  FIG. 18A shows the structure of a modified example of the corner post CP according to the third mode of the present invention. The corner post CP of the modified example of the third form is different from the corner post CP of the third form in that the lower end of the post 1 is embedded in the ground outside the post 1A via the elastic member 80. This is a point connected to the anchor 55 by a spring 8. The other structure of the modified example is the same as that of the third mode. The wire 2 is held by an overhead wire tool 6 including a pulley. When the overhead wire tool 6 moves from its original position, the holding position of the wire 2 by the overhead wire tool 6 can be changed by rotating the pulley. The point that can be done is also the same.

  The elastic member 80 can be formed by a hinge member 80 including a base portion 81, a bracket 82, an arm 83, and a post holding portion 84 as shown in FIG. 19A, for example. A spring 8 is connected to one end of the base portion 81, and a bracket 82 is provided at the other end of the base portion 81 to rotatably hold the base portion of the arm 83. The arm 83 is biased toward the base portion 81 by a spring (not shown), and is on the base portion 81 in a state where no tensile force is applied to the post 1. The distal end portion of the arm 83 is engaged with a long hole 85 in the post holding portion 84 that holds the lower end portion of the post 1.

  FIG. 19B shows the operation of the hinge member 80 when a tensile force is applied to the corner post CP through the wire. When the post 1 moves to the left side of the drawing due to the tensile force, the hinge member 80 moves to the left side while extending the spring 8, and the arm 83 rotates about the bracket 82 in a direction away from the base portion 81. When the post 1 further moves to the left side of the drawing due to the tensile force, the hinge member 80 moves to the left side while further extending the spring 8 and the arm 83 is centered on the bracket 82 as shown in FIG. It rotates as far as possible away from the base part 81. The state of the post 1 of the corner post CP and the auxiliary posts 3 and 5 in the state shown in FIG. 19C is shown in FIG.

  FIG. 18B shows an example of deformation of the post 1, the auxiliary posts 3, 5 and the hinge member 80 when the tensile force from the wire 2 is applied to the corner post CP shown in FIG. 18A and the state of the spring 8. Is shown. The front end of the post 1 is connected to the auxiliary post 3 by the connecting member 7 and fixed to the post 1A, and the lower end of the post 1 is connected to the anchor 55 fixed to the ground by the spring 8 via the hinge member 80. ing. For this reason, when the tensile force from the wire 2 is applied to the corner post CP, the auxiliary post 3 and the post 1A are bent toward the cultivated land C, and the post 1 is slightly deformed while extending the hinge member 80 and the spring 8. To move to the cultivated land C side. In this configuration, when the tensile force from the wire 2 is lost, the corner post CP is easily restored to the state shown in FIG. 18A due to the restoring force of the auxiliary posts 3 and 5 formed of an elastic material.

  FIG. 20 shows an embodiment of the corner post CP according to the fourth aspect of the present invention. In this embodiment, a pulley 61 provided on the wire 6 is shown. In the corner post CP of this embodiment, a predetermined length from one end is embedded in the ground G, and a first support column 91 having elasticity that stands upright in a direction perpendicular to the ground G, and an upper end portion of the first support column 91 There is a second column 92 having a rigidity that is attached by a connecting member 4 and has the other end extended in the direction of the ground G. The connecting member 4 connects the second support column 92 to the first support column 91 in a swingable manner.

  The second post 92 is attached with the wire harness 6 provided with the pulleys 61 at least at two locations in accordance with the number of wires 2 stretched around the corner post CP. The pulley 61 is rotatably attached to the second support column 92 by a locking member (not shown). Further, a predetermined interval is provided between the pulley 61 and the pulley 61. The wire 2 is stretched over the pulley 61, and when the pulley 61 moves and the holding position of the wire 2 by the overhead wire 6 changes, the pulley 61 rotates.

  The connecting member 4 maintains a constant angle between the second support column 92 and the first support column 91 in a state in which no external force is applied to the wire 2, and between the second support column 92 and the first support column 91. So that the pulley 61 can rotate without interfering with the first support column 91. In this embodiment, two overhead wires 6 having pulleys 61 are attached to the second support column 92. However, the number of extension wires 6 attached to the second support column 92, the pulleys 61 and the pulleys 61 of the extension wire device 6, and The interval between is not limited.

  In the corner post CP having the above-described structure, as illustrated in FIG. 5C, when the wire 2 is pulled by the animal A, the overhead wire 6 is pulled by the wire 2 in a direction away from the first support column 91. . Then, in the corner post CP having the structure shown in FIG. 20, the second support column 92 is rigid because it has rigidity, and as shown in FIG. 21, the second support column 92 and the first support column 91 are connected by the connecting member 4. The second support column 92 moves in the direction in which the angle formed by the angle increases. At this time, the connecting member 4 is also pulled by the wire 2 in the moving direction of the second support column 92. When the connecting member 4 is pulled by the wire 2 in the moving direction of the second support column 92, the first support column 91 has elasticity, so that it is elastically deformed in the moving direction of the second support column 92.

  As a result, the wire 6 holding the wire 2 moves in the direction in which the wire 2 is pulled from the original position of the first support column 91, and the position where the pulley 61 of the wire 6 is rotated to hold the wire 2 is changed. Is done. As described above, when the corner post CP of the present embodiment is generally used for an animal fence of about 50 m, when the wire 2 is pulled, the overhead wire 6 is approximately about the original position of the first support column 91. What is necessary is just to determine the magnitude | size of the opening angle of the 1st support | pillar 91 and the 2nd support | pillar 92 by the elasticity of the 1st support | pillar 91 and the connection member 4 so that it can move about 20 cm.

  When the wire 2 is not pulled, in the corner post CP of this embodiment, the first support column 91 is restored to a position perpendicular to the ground G by the elastic force, and the connecting member 4 is connected to the first support column 91 and the second support column 92. Is returned to a minimum angle at which the pulley 61 of the wire 6 does not interfere with the first support column 91. As a result, the corner post CP of this embodiment returns to the state shown in FIG. When the overhead wire 6 returns to the original position, the pulley 61 rotates to change the position where the overhead wire 6 holds the wire 2.

  As described above, the corner post CP of the animal simple fence according to the present embodiment is such that when the animal pulls the wire and moves the overhead wire 6 over which the wire 2 is stretched, the first support column 91 is elastically deformed, The angle formed by the first support column 91 and the second support column 92 is increased, and the overhead wire 6 is moved in a direction away from the original position of the first support column 91. Further, when the overhead wire 6 moves, the pulley 61 rotates and the holding position of the wire 2 by the overhead wire 6 changes, so that a large load is not applied to the wire 2 and the cutting of the wire 2 is prevented. Furthermore, after the animal load on the wire 2 is released, the wire 2 can be returned to the original tensioned state by the restoring force of the first support column 91. If the 1st support | pillar 91 is an elastic member, there will be no limitation in particular in a material, and if the 2nd support | pillar 92 is also a member provided with rigidity, there will be no limitation in particular in a material.

  Here, the structure of the overhead wire 6 that can be used for the corner post CP of the present invention will be described using some examples with reference to FIGS. As the corner post CP, for example, the corner post CP shown in FIG. 20 is taken as an example, and a pulley 61 that can be attached to the overhead wire 6 will be described.

  In the example shown in FIG. 22 (a), one of the locking members 63 that locks both sides of the pulley 61 so that the pulley 61 does not come off the arm 62 is extended so as to cross the groove 61M of the pulley 61. 63E is provided, and this extension 63E is a wire stopper. In the example shown in FIG. 22B, the cross-sectional shape of the groove 61M is V-shaped so that the wire held in the groove 61M of the pulley 61 does not come off from the groove 61M even if the arm 62 is inclined and the pulley 61 is inclined. It has become. In the example shown in FIG. 22 (c), the pulley 61 with wire detachment prevention shown in FIG. 22 (a) is attached to the distal end side of the pivot shaft 64 of the arm 62 provided with the pivot shaft 64. It can be moved.

  In the example shown in FIG. 22 (d), the structure of the pulley 61 attached to the arm 62 of the overhead wire 6 is not changed, but the wire 2 to be wound around the pulley 61 is attached to the pulley 61 in a state of being wound twice. ing. When the wire 2 is wound around the pulley 61 twice, the wire 2 is difficult to come off from the pulley 61 even if the pulley 61 is inclined. In the example shown in FIG. 22 (e), a pulley holding plate 67 is rotatably attached to a plate-like protrusion 65 projecting from the side surface of the arm 62 with a rotating shaft 66. The linear portion of the ring-shaped pulley fastener 69 is rotatably held by the cylindrical portion 68 provided at the free end of the pulley holding plate 67. With this structure, the pulley 61 can move in a three-dimensional direction with respect to the arm 62.

DESCRIPTION OF SYMBOLS 1 Post 2 Wire 3 Auxiliary post 4, 7 Connecting member 6 Overhead wire 8 Spring 61 Pulley 91 1st support 92 2nd support CP Corner post C Cultivated land

Claims (10)

In the animal fence that blocks the passage of animals, a corner post of a simple fence for animals that is installed at a corner that changes the direction in which the wire is stretched,
A plurality of posts including at least one elastic post;
A wire attaching portion that is provided at at least one position of one of the plurality of posts and holds and stretches the wire;
At least one of the elastic posts among the plurality of posts is erected in a direction perpendicular to the ground;
The remaining posts are slidably connected to each other by a connecting member with respect to the posts erected with respect to the ground.
The wire mounting portion is provided with a pulley capable of changing the holding position of the wire by rotating,
When a tensile force acts on the wire, the post erected with respect to the ground is elastically deformed, so that an inner angle formed by the wire stretched on the post from the original position is made. Move the wire in a direction away from the post erected with respect to the ground to change the holding position of the wire, and restore the pulley when the tensile force on the wire disappears. The corner post of the simple fence for animals characterized by returning to the position.   2. The animal simple fence according to claim 1, wherein a base of the remaining post is fixed obliquely to the ground with respect to the post erected with respect to the ground. Corner post.   The animal according to claim 2, wherein the post erected with respect to the ground and the remaining post are all formed of an elastic member, and all the posts have the same elastic coefficient. Simple fence corner post.   4. The post according to claim 1, wherein the remaining post is installed on an inner angle side formed by the wire stretched on the post with respect to the post standing on the ground. A corner post of a simple fence for animals according to item 1.   The corner post of the simple fence for animals according to any one of claims 1 to 4, wherein the remaining posts connected to the posts erected with respect to the ground are two.   2. The connection member is fixed to the post standing upright with respect to the ground, and a hole through which the tip of the remaining post is inserted is provided at both ends. The corner post of the simple fence for animals as described in any one of 1-5.   The post erected with respect to the ground has a tip connected to the remaining post and a base connected to one of the remaining posts via a second connecting member. The corner post of the simple fence for animals according to claim 1 characterized by the above-mentioned.   The second connecting member is formed of an elastic member capable of separating one base portion of the remaining post from the post erected with respect to the ground. The corner post of the simple fence for animals according to claim 7.   2. The post according to claim 1, wherein a tip of the post erected with respect to the ground is connected to the remaining post and a base thereof is fixed to the ground via an elastic member. A corner post of a simple fence for animals.   The connecting member maintains a constant angle between the post erected with respect to the ground in a state where no external force is applied to the wire and the remaining post, and the tensile force acts on the wire. The corner post of the animal simple fence according to claim 1, wherein an angle formed between the post erected with respect to the ground and the remaining post is increased.

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