JP5377105B2 - Conductive wire support insulator - Google Patents

Description

  The present invention relates to a support insulator for a conductive wire, and more particularly to an insulator that supports a conductive wire that is stretched on an electric fence that prevents intrusion of monkeys, birds and the like on a farm.

  Conventionally, an electric fence has been installed at the boundary of a place where grazing animals such as cattle and horses are grazed on a ranch or the like so that animals do not escape from the grazing land. When an animal such as a cow or horse touches this electric fence, the electric fence receives an electric shock due to the high voltage output from the power supply device (power unit) for the electric fence, and then the animal escapes by not getting close to the electric fence. Is to prevent. A general configuration of the electric fence will be described with reference to FIG.

  As shown in FIG. 1, the electric fence 6 has a plurality of conductive wires 2 at predetermined intervals from the ground 1 on a plurality of posts (posts) 4 made of an insulating material embedded in the ground 1 at a predetermined distance. Is stretched over. A high voltage (several thousand volts) from the positive electrode (+) of the power unit 3 connected to the power source 5 is applied to the conductive wire 2. The high-voltage electricity output from the power unit 3 passes through the body of the animal that has touched the conductive wire 2, passes through the ground 1, and returns to the negative electrode (−) of the power unit 3.

  On the other hand, the electric fence is used not only for the purpose of preventing the animal from escaping as described above, but also for the purpose of preventing the animal from approaching. For example, in order to prevent crops cultivated in a farmer's field from being damaged by animals such as monkeys and foxes, the field is surrounded by an electric fence.

  In recent years, it has been reported that farms such as orchards eat and destroy fruit trees by wild birds. Birds fly and invade from the space above the electric fence, so the electric fence cannot prevent the bird from entering. Even if a bird flies and stops on one conductive wire of an electric fence, the bird touches only one pole, so electricity does not flow to the bird and an electric shock cannot be applied. Furthermore, since the monkey can jump on the electric fence and can ride on the conductive wire of the electric fence without touching the ground, electricity does not flow to the monkey and an electric shock cannot be given. Therefore, in orchard farmers, a conductive cable is formed above the tree in the orchard so that the polarities of the cables are alternately changed and the birds and monkeys are prevented from entering.

  By the way, when a conductive wire is stretched between columns, a high voltage is applied to the conductive wire. Therefore, it is necessary to attach an insulator made of an insulating material to the column and to support the conductive wire on the insulator. . Here, a structure of a representative insulator for supporting a conductive wire that has been put into practical use, and a method for attaching the conductive wire to the insulator will be described.

  FIG. 2 shows a configuration of a conventional insulator 50 for attaching the conductive wire 2 stretched around the electric fence to the support column 4. The insulator 50 is composed of a fixture 51 to the support column 4 and a wire support 52 provided on the fixture 51. The wire support 52 includes a base 53 and two support protrusions 54 and 55 projecting from the base 53. The support protrusions 54 and 55 are arranged in parallel at a predetermined interval. The support protrusion 54 has a U-shaped groove 56 that opens upward, and the support protrusion 55 has a U-shaped groove 57 that opens downward. . The U-shaped grooves 56, 57 can be seen from the side surfaces of the support protrusions 54, 55, and the conductive wire 2 is placed in the space between the support protrusions 54, 55 in the vertical direction to open the U-shaped grooves 56, 57. When twisted to the side, the conductive wire 2 is supported by the two support protrusions 54 and 55 in a state where it is difficult to come off.

  FIG. 3 (a) shows a configuration of another conventional insulator 40 for supporting a conductive wire on an electric fence post 4, which is shown in Patent Document 1. FIG. Reference numeral 30 denotes a mounting bracket, 31 denotes a shaft portion on which a screw is provided, 32 denotes a hook portion to be engaged with the post 4 of the electric fence, 33 denotes a cylindrical insulator body made of an insulator such as synthetic resin, and 34 denotes the post 4 And a wing nut 35 that is screwed into the shaft portion 31 in order to tighten the lever main body 33, and a through hole through which the shaft portion 31 is inserted. The insulator main body 33 is provided with conductive wire winding portions 40a and 40b and a slit portion 40c, and a conductive wire is wound around and supported by the conductive wire winding portions 40a and 40b.

  FIG. 3B shows a state in which the conductive wire 2 is wound around and supported by the insulator 40 shown in FIG. In this example, the conductive wire 2 starts to be wound from the winding portion 40b, makes the winding portion 40a half-turn through the slit portion 40c, and further pulls out from the winding portion 40b to the outside through the slit portion 40c. FIG. 3C shows a state in which the conductive wire 2 is wound around and supported by the insulator 40 shown in FIG. 3A by a method different from the method of FIG. In this example, the conductive wire 2 starts to be wound from the winding portion 40b, and after winding the winding portion 40b more than a half turn, the winding portion 40a is made a half turn through the slit portion 40c and pulled out from the winding portion 40a.

JP 2007-305307 A (FIGS. 6 to 9)

  However, in the conventional insulator 50 shown in FIG. 2, an extraordinary special external force is applied to the conductive wire 2 such as loosening of the conductive wire 2 or pulling of the conductive wire 2 by an animal such as a monkey. Therefore, there is a problem that the conductive wire 2 is easily detached from the insulator 40. Further, in the conventional insulator 40 shown in FIG. 3, since the conductive wire 2 is wound around and fixed to the insulator 40, it takes time to stretch the conductive wire 2 and the conductive wire 2 of the animal after the tensioning. Depending on the contact direction, there is a problem that the wire does not extend between the two insulators, so that the conductive wire 2 is disconnected, the insulator 40 is bent, or the support 4 is bent.

  Furthermore, in the case of an electric fence for preventing the invasion of birds and monkeys, a conductive wire that applies a positive voltage and a conductive wire that is connected to the ground are arranged at predetermined intervals and stretched between struts. However, the insulators 50 and 40 shown in FIGS. 2 and 3 have a problem that only one conductive wire 2 can be stretched. The reason why two conductive wires 2 are arranged close to each other in parallel is that if the monkey does not grasp the two conductive wires 2 of different polarities, the electric shock will not occur, and the bird will not stop over the two conductive wires 2 Because there is no electric shock.

  Therefore, an object of the present invention is to attach an insulator to a post of an electric fence, and then to support the two conductive wires on the insulator at a predetermined interval, and to support the conductive wire in a state where it is not fixed by the insulator. It is another object of the present invention to provide a support insulator for a conductive wire that has a structure in which the conductive wire can be easily attached to the insulator and the attached conductive wire is difficult to be removed from the insulator.

  The conductive wire support insulator of the present invention that achieves the above-mentioned object is a conductive wire support insulator used by being attached to a post of an electric fence, and is provided on a flat base and the base. The first locking arm extending in a direction parallel to the upper surface of the first locking arm and the top of the base so that the first locking arm is sandwiched between the first locking arm and the first locking arm. It has the basic form comprised from the two 2nd latching arms protrudingly provided by this, and the fixture which attaches this base to a support | pillar.

  And the 1st form of the support insulator of the electrically conductive wire of this invention is a base which couple | bonded the back surfaces of the base | substrate, and couple | bonded the back surface of the base stand in the state which made one side erect and the other inverted An insulator body having a through hole for inserting a fixture in the extending direction of the first locking arm in the base, a shaft portion having a hook portion that engages with a support column at one end and a screw portion at the other end It can comprise and comprise the fixture comprised as a mounting bracket containing the metal fitting main body and the nut fitted to a screw part.

Further, according to the second embodiment of the conductive wire supporting insulator of the present invention, the insulators of this basic form are arranged in parallel so that the first locking arm is located coaxially, and the upper surface of the base is one surface. The bases are joined to form an insulator body so as to form an insulator, and an attachment that engages with the support can be provided on the back side of the insulator body.
In the first and second embodiments described above, an auxiliary arm that connects the free ends of the two second locking arms can be provided.

  According to the present invention, two conductive wires can be inserted into and supported by the insulator at a predetermined interval. Therefore, if voltages having different polarities are applied to the two conductive wires, It is possible to repel evil animals such as birds and monkeys that touch the conductive wire at the same time. In addition, the insulator of the present invention has an effect that the conductive wire can be easily inserted and the conductive wire once inserted is difficult to be removed from the insulator.

It is a perspective view which shows the structure of the conventional electric fence. It is a perspective view which shows the structure of an example of the conventional insulator for supporting a conductive wire in the support | pillar of an electric fence. (A) is an assembly perspective view which shows the structure of another example of the conventional insulator for supporting a conductive wire on the support | pillar of an electric fence, (b) is the state which wound and supported the conductive wire on the insulator of (a) (C) is a front view which shows the state which wound and supported the conductive wire around the insulator of (a) by the method different from the method of (b). (A) is the perspective view explaining the structure of the basic form of the insulator of the present invention and the method of inserting the conductive wire into the insulator of this basic form, (b) is a side view of (a), (c) is (a) (D) is a perspective view showing a state in which a conductive wire is supported on the basic form of the insulator shown in (a), (e) is a side view of (d), and (f) is a plane of (d). FIG. FIG. 4A is an assembly perspective view showing the configuration of the first embodiment configured by joining the basic configuration of the insulator according to the present invention shown in FIG. 4 with one side upside down, and FIG. It is an assembly perspective view which shows the structure of the 2nd form comprised by joining the basic form of the insulator which concerns on this invention shown in FIG. (A) is a perspective view which shows the structure of the 1st Example of the 1st form of the insulator which concerns on this invention, (b) is the structure of 2nd Example of the 1st form of the insulator which concerns on this invention. It is a perspective view shown. (A) is an assembly perspective view which shows the structure of the 3rd Example of the 1st form of the insulator based on this invention, (b) is a top view of the state which assembled the insulator of (a). (A) is a perspective view showing a state in which two conductive wires are inserted into and supported by the insulator shown in FIGS. 7 (a) and 7 (b), and (b) uses the insulator shown in (a). It is a perspective view which shows the structure of an electric fence. (A) is an assembly perspective view which shows the structure of the 4th Example of the 1st form of the insulator based on this invention, (b) is a top view of the state which assembled the insulator of (a), (c) is ( It is a top view which shows the modification of the pressing piece of the insulator shown to a) and (b). 9A is a front view of the first insulator shown in FIG. 9A, FIG. 9B is a plan view of the first insulator, and FIG. 9C is a rear view of the second insulator shown in FIG. FIGS. 10D and 10D are side views including a partial cross section after the second insulator shown in FIG. 9C is attached to the insulator body shown in FIGS. 10A and 10B. (A) is an assembly perspective view which shows a state just before fixing a net | network to a support | pillar using a clamper, (b) is a perspective view which shows the state where the net | network is fixed to the support | pillar using a clamper. It is a perspective view which shows the structure of the insulator which made the trunk | drum part of the clamper shown to Fig.11 (a), (b) the attachment part of the insulator of the 2nd form which concerns on this invention. (A) is a perspective view showing a modification of the basic form of the insulator shown in FIG. 4 (d), (b) is a second view of the first form of the insulator according to the present invention shown in FIG. 6 (b). The perspective view which shows the structure of the modification of an Example, (c) is a top view which shows another modification of the pressing piece of the insulator shown in FIG.9 (c), (d) is this invention shown in FIG. It is a perspective view which shows the structure of the modification of the insulator used as the attaching part of the insulator of the 2nd form which concerns.

  Hereinafter, embodiments of the present invention will be described in detail based on specific examples with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected and demonstrated to the same structural member as the conventional electric fence and insulator shown in FIGS. In addition, constituent members having the same function used for the same part even if the shapes are different will be described with the same reference numerals.

  4 (a), 4 (b), and 4 (c) show the basic configuration of the insulator 10 of the present invention. FIG. 4 (a) is a perspective view of the insulator 10 and FIG. FIG. 4C is a plan view of the insulator 10. FIG. 4A shows a method for inserting the conductive wire 2 into the insulator 10. The basic insulator 10 includes a flat base plate 11, and a first locking arm 13 and two second locking arms 14 and 15 are provided on the base plate 11. The first locking arm 13 is supported by a support wall 12 protruding from the end of the base plate 11 and extends parallel to the base plate 11. On the other hand, the second locking arms 14 and 15 protrude from the base plate 11 at positions facing each other with the first locking arm 13 in between. There is a predetermined gap between the arms 14 and 15. In other words, the first locking arm 13 and the second locking arms 14 and 15 are arranged on the base plate 11 in a twisted positional relationship.

  When the wire 2 is inserted into the space surrounded by the base plate 11, the support wall 12, the first locking arm 13, and the second locking arms 14 and 15, as shown in FIG. 2 is bent into a rectangle, and the bent portion is pulled from both sides after passing through the gap between the first locking arm 13 and the second locking arms 14 and 15. 4 (d), 4 (e), and 4 (e), the state where the wire 2 is inserted into the space surrounded by the base plate 11, the support wall 12, the first locking arm 13, and the second locking arms 14, 15. Shown in f). In this state, as shown in FIG. 4 (e), the base plate 11, the support wall 12, the first locking arm 13, and the second locking arm 14, no matter which direction the wire 2 moves, 15, the wire 2 once inserted into the insulator 10 cannot be detached from the insulator 10.

  In the present invention, the base plate 11, the support wall 12, the first locking arm 13, and the second locking arms 14 and 15 are made of insulating members to form the basic form of the insulator 10, and the base plate 11 of the insulator 10 is formed. Is fixed to the pole of the electric fence using some fixtures. In the insulator 10 of this basic form, the conductive wire 2 can be inserted and held in a space surrounded by the base plate 11, the support wall 12, the first locking arm 13, and the second locking arms 14 and 15. it can. As the conductive wire 2, a twisted wire made of synthetic resin such as nylon and a conductive metal wire braided is used. In addition, the front-end | tip part of the support wall 12 can be curved, and the 1st latching arm 13 can also be integrally formed in the front-end | tip part, the base part of the 1st latching arm 13 is directly removed without the support wall 12. You may make it connect to the base plate 11 diagonally.

  In the present invention, the two-wire holding insulator 20 that can hold the two conductive wires 2 in parallel by joining two insulators 10 of the basic form described in FIG. 4 is configured. In order to join two insulators 10 and hold the two conductive wires 2 in parallel, two ways of joining the insulators 10 are conceivable. Therefore, the first and the second constructed by the following two joining methods are considered. The two-wire holding insulator 20 in the form 2 will be described.

  FIG. 5A illustrates the configuration of the two-wire holding insulator 20 according to the first embodiment of the present invention. The two-line holding insulator 20 of the first embodiment is the base plate in which the two insulators 10 of the basic form shown in FIG. 4 are left as they are (upright state) and the other is turned upside down (inverted state). 11 back surfaces are joined to each other. In this example, the back surfaces of the base plates 11 are joined with the front end portion of the first locking arm 13 facing the same direction, but the front end portion of the first locking arm 13 faces in the opposite direction. The back surfaces of the base plates 11 may be joined together. In the two-line holding insulator 20 of the first embodiment, any attachment tool (Heaton or Western lamp hanging) can be attached in a direction parallel to the base plate 11.

  FIG. 5B illustrates the configuration of the two-wire holding insulator 20 according to the second embodiment of the present invention. The two-line holding insulator 20 of the second form is the same as the two insulators 10 of the basic form shown in FIG. Join and configure. In this example, the end surfaces of the base plates 11 are joined together with the front ends of the first locking arms 13 facing in the opposite direction, but the front ends of the first locking arms 13 are opposed to each other. Thus, the back surfaces of the base plates 11 can be joined together. However, if the back surfaces of the base plates 11 are joined with the front ends of the first locking arms 13 facing each other, the conductive wires 2 may approach and come into contact when the conductive wires 2 are inserted into the insulator 20. Therefore, it is better to join the end faces of the base plates 11 with the tip of the first locking arm 13 facing in the opposite direction. In the two-line holding insulator 20 of the second form, any attachment tool (wood screw, staple, or bolt) can be attached in a direction perpendicular to the base plate 11.

  FIG. 6A shows the configuration of the insulator 21 of the first embodiment of the first mode according to the present invention. In the insulator 21 of the first embodiment, the base plate 11 is formed thin, and the insulator 21 is integrally molded with an insulating synthetic resin. The second locking arms 14 and 15 may be attached later. A through hole 16 parallel to the first locking arm 13 is provided in the central portion of the base plate 11. The portion of the base plate 11 provided with the through holes 16 is thick in this embodiment. In this embodiment, the second locking arms 14 and 15 have a cylindrical shape, and a curved portion 17 is formed on the side of the support wall 12 attached to the support column. The fitting 30 having the shaft portion 31 and the hook portion 32 described in FIG. 3A is inserted into the through hole 16, and the wing nut 34 is attached to the shaft portion 31 protruding from the through hole 16.

  FIG. 6B shows the configuration of the insulator 22 of the second embodiment of the first mode according to the present invention. The difference between the insulator 22 of the second embodiment and the insulator 21 of the first embodiment is only the configuration of the base plate 11. In the first embodiment, the base plate 11 is a single plate, but in the second embodiment, the base plate 11 is divided into two upper and lower portions with a slit 18 therebetween. The reason why the slit 18 is provided in the base plate 11 is that a high voltage is applied to the space surrounded by the base plate 11, the support wall 12, the first locking arm 13, and the second locking arms 14 and 15. This is because the two conductor wires 2 are inserted, so that the creeping distance between the two conductor wires 2 is secured by the slit 18.

  FIG. 7A shows the structure of the lever 23 of the third embodiment of the first mode of the lever according to the present invention. In the third embodiment, the insulator 23 is divided into two parts, ie, a first insulator 41 and a second insulator 42, and the first insulator 41 is provided with the most part 11A of the base plate 11 and the first engagement. The arm 13 is disposed, and a part 11 </ b> B of the base plate 11 and the second locking arms 14 and 15 are disposed on the second insulator 42. In the third embodiment, the portion of the support wall 12 in the first and second embodiments is a cylinder-shaped cylinder portion 43, and the first locking arm 13 is provided on the bottom surface 12A of the cylinder portion 43. doing.

  On the free end side of the cylinder portion 43, a notch 46 for engaging with the support column is provided. The outer surface of the first locking arm 13 is flush with the outer peripheral surface of the cylinder portion 43 and is curved in an arc shape. The base plate 11A has a slit 18A as in the second embodiment, and a guide hole 44 is provided at the center of the base plate 11A. On the other hand, the second lever 42 is integrated with the base plate 11A when the second lever 42 is coupled to the first lever 41, and the sleeve 47 fitted into the guide hole 44 in the first lever 41. There is a base plate 11B that becomes the base plate 11, and second locking arms 14 and 15 project from the base plate 11B. The base plate 11B has a slit 18B, and the sleeve 47 has a through hole 16 through which the above-described mounting bracket is inserted.

  FIG. 7B is a plan view of the state in which the insulator 23 shown in FIG. 7A is assembled. The configuration of the insulator 23 of the third embodiment is the same as that of the insulator 22 of the second embodiment described with reference to FIG. 6B except for the configuration of the cylinder portion 43. FIG. 8A shows a state where the two conductive wires 2A and 2B are inserted and supported by the insulator 23 of the third embodiment. The two conductive wires 2A and 2B are supported by the insulator 23 in a state where they are separated by a predetermined distance by the base plate 11A. Voltages having different polarities are applied to the two conductive wires 2A and 2B. For example, a high voltage potential is applied to the conductive wire 2A, and the conductive wire 2B is connected to the ground.

  FIG.8 (b) shows the structure of the electric fence 7 using the insulator 23 shown to Fig.8 (a). An electric fence 7 shown in FIG. 8 (b) has a plurality of conductive wires 2A and 2B at a predetermined interval from the ground 1 to a plurality of support columns 4 made of an insulating material embedded in the ground 1 at a predetermined distance. It is constructed by spanning a pair. A high voltage (several thousand volts) from the positive electrode (+) of the power unit 3 connected to the power source 5 is applied to the conductive wire 2A. The conductive wire 2B is connected to the negative electrode (-). Since a high voltage is applied between two adjacent conductive wires 2A and 2B, a high voltage current flows to an animal that touches both of the conductive wires 2A and 2B, and the animal receives an electric shock. become.

  FIG. 9A shows the structure of the insulator 24 of the fourth embodiment of the first mode according to the present invention. In the fourth embodiment, similarly to the third embodiment, the lever 24 is divided into two pieces, ie, a first lever 41 and a second lever 42. The configuration of the first lever 41 of the fourth embodiment is almost the same as the configuration of the first lever 41 of the third embodiment, and the base plate 11, the first locking arm 13, and the cylinder portion 43. There is. The difference is that in the third embodiment, the tip of the base plate 11 is cut out in a rectangular shape, whereas in the fourth embodiment, the tip of the base plate 11 is cut out in a triangular shape. It is only a point. Therefore, further description of the configuration of the first insulator 41 of the fourth embodiment is omitted.

  On the other hand, the configuration of the second insulator 42 of the fourth embodiment is significantly different from the configuration of the second insulator 42 of the third embodiment. The second lever 42 of the fourth embodiment has a sleeve 47 that fits into the guide hole 44 of the first lever 41 as in the third embodiment, but a part of the base plate 11 is Instead, a locking wall 48 is provided at the end of the sleeve 47. This sleeve 47 is the same in that there is a through hole 16 for inserting the above-mentioned mounting bracket. Guard portions 45 are provided in a wing shape on both sides of the locking wall 48. The end portion of the guard portion 45 is a curved portion 45A that is curved in an arc shape, and this curved portion 45A is at the same position as the outer peripheral surface of the second locking arms 14 and 15 in the third embodiment. One locking arm 13 is sandwiched between two curved portions 45A.

  FIG. 9B is a plan view of the state where the insulator 24 shown in FIG. 9A is assembled. As can be seen from this figure, in the lever 24 of the fourth embodiment, when the second lever 42 is attached to the first lever 41, the curved portion 45A of the guard portion 45 is moved to the second relationship in the third embodiment. Performs the same function as the stop arms 14 and 15. Further, as shown in FIG. 9C, eaves portions 49 may be provided at both ends of the locking wall 48 and the guard portion 45 so that the conductive wire is more difficult to come off from the insulator 24.

  FIG. 10A shows a state in which the first insulator 41 of the insulator 24 shown in FIG. 9A is viewed from the front, and FIG. 10B shows the state of the insulator 24 shown in FIG. The first insulator 41 is viewed from above. As shown in these drawings, the outer surface of the first locking arm 13 may be curved toward the tip, and the inner surface of the first locking arm 13 is also a flat surface. Alternatively, it may be formed on a curved surface. Furthermore, the base plate 11 may be tapered so that the plate thickness decreases toward the edge.

  FIG. 10 (c) is a view of the second insulator 42 shown in FIG. 9 (c) as seen from the back side, and FIG. 10 (d) shows the first insulator shown in FIGS. 10 (a) and 10 (b). The state after attaching the 2nd insulator 42 shown in FIG.9 (c) and FIG.10 (c) to the insulator 41 is seen from the side surface. Only the second insulator 42 is shown in cross section in FIG. 10D so that the position of the eaves portion 49 when the second insulator 42 is coupled to the first insulator 41 can be clearly understood. FIG. 10D shows a state in which the two conductive wires 2A and 2B are held on the insulator 24 of the fourth embodiment. As can be seen from this figure, when eaves portions 49 are provided at both ends of the locking wall 48 and the guard portion 45, the two conductive wires 2A and 2B move up and down while moving to the locking wall 48 side. Even so, since the eaves portion 49 blocks the passage along the locking wall 48, the conductive wires 2 </ b> A and 2 </ b> B are prevented from coming off from the insulator 24.

  Here, before explaining the configuration of the insulator according to the second embodiment of the present invention, a flexible and thin net 8 made of nylon or the like is attached to the support column 4 with reference to FIGS. 11A and 11B. A method of fixing using the clamper 60 will be described. When the net 8 is attached between the columns 4 and 4, the net 8 is bent so as to have the shape of the column 4 as shown in FIG. A cylindrical clamper 60 cut out in the vertical direction is pressed against and fitted into the support column 4, and a C-shaped spring 62 is fitted into a circumferential groove 61 provided on the outer periphery of the clamper 60. FIG. 11B shows a state in which the net 8 is fixed to the support column 4 using the clamper 60 and the spring 62.

  The insulator 25 according to an embodiment of the second aspect of the present invention can be formed on the outer peripheral surface of the clamper 60, for example. This will be described with reference to FIG. FIG. 12 shows the structure of the insulator 25 according to an embodiment of the second mode of the present invention. In this embodiment, the clamper 60 shown in FIG. 11 is used as a fixture of the insulator 25 to the support column 4, and the base plate 11 and the fixture of the base plate 11 to the support column 4 described in FIG. The clamper 60 is also used. That is, the body portion between the two groove portions 61 in the clamper 60 is used as the base plate 11, the support wall 12 is protruded from the body portion, and the clamper 60 is provided on both sides of the free end portion of the support wall 12. A first locking arm 13 parallel to the axial direction is formed. Then, the four second locking arms 14 and 15 are provided on the body portion of the clamper 60 so as to be in a torsional position relationship with the first locking arm 13.

  The insulator 25 configured as described above can be attached to the support column 4 in a state as shown in FIG. In this state, if a conductive wire is inserted into the space surrounded by the support wall 12 of the insulator 25, the first locking arm 12, and the second locking arms 14, 15, the space between the column 4 and the column 4 Two parallel conductive wires can be stretched.

  The fixture according to the second aspect of the present invention is not limited to this embodiment. For example, it is also formed on an insulating plate that has hook portions at both ends and can be hooked between two wires. In addition, on the bottom surface 12A of the cylinder portion 43 of the first insulator 41 described in the first embodiment, the support wall 12, the first locking arm 12, and the second locking arm 14 having the configuration shown in FIG. , 15, through holes 16 in the support wall 12, and the mounting bracket 30 shown in FIG.

  Furthermore, in the two embodiments described above, the second locking arm has a free end, but a configuration in which the free ends are connected to each other is also possible. This form will be described with reference to FIG. FIG. 13 (a) shows a modification of the insulator 10 of the basic form shown in FIG. 4 (d). In this modification, the free ends of the second locking arms 14 and 15 are connected by an auxiliary arm 19. FIG.13 (b) shows the structure of the modification of the insulator 22 of the 2nd Example of the 1st form shown in FIG.6 (b). Also in this modification, the two free ends of the second locking arms 14 and 15 are connected to each other by the auxiliary arm 19. FIG.13 (c) shows the structure of another modification of the 2nd insulator 42 shown in FIG.9 (c). In this modified example, the eaves portion 49 is extended to the curved portion 45A to form an eave portion 49A that also serves as an auxiliary arm. FIG. 13D shows a configuration of a modification of the insulator 25 of the second embodiment shown in FIG. In this modification, the free ends of the two sets of second locking arms 14 and 15 are connected by auxiliary arms 19, respectively. In these modifications, it takes a little time to support the conductive wire on the insulator, but the difficulty of disconnecting the conductive wire supported on the insulator is improved.

DESCRIPTION OF SYMBOLS 1 Ground 2 Conductive wire 3 Power unit 4 Support | pillar 6,7 Electric fence 8 Net 10 Insulator 11 base board 12 Support wall 13 1st locking arm 14, 15 2nd locking arm 16 Through-hole 18 Slit 19 Auxiliary arm 20 2-line holding insulator 21-25 Insulator 30 mounting bracket 41 first insulator 42 second insulator 43 cylinder part 44 guide hole 45 guard part 47 sleeve 48 locking wall 49 eaves part 60 Clamper 61 Groove 62 Spring

Claims (10)

It is a support insulator for conductive wire that is used by attaching to the pole of the electric fence,
A flat base,
A first locking arm provided on the base and extending in a direction parallel to the upper surface of the base;
Two second locking arms projecting from the base so as to be in a twisted position with respect to the first locking arm across the first locking arm; ,
A fixture for attaching the base to the column;
A conductive wire is inserted and supported through a gap between the first and second locking arms into a space surrounded by the base, the first locking arm, and the second locking arm. A support insulator for a conductive wire. The insulator according to claim 1, wherein one of the insulators is upright and the other is inverted, and the back surfaces of the bases are joined together to form an insulator body.
Open a through hole in the extending direction of the first locking arm in the insulator body,
An attachment composed of a metal fitting body having a shaft portion in which a hook portion that engages with the support column is formed at one end and a screw portion is formed at the other end, and a nut that engages the screw portion. Configure as a metal fitting, let the shaft portion pass through the through hole,
A support insulator for a conductive wire, wherein two conductive wires can be supported in a non-contact state.   The supporting insulator for a conductive wire according to claim 2, wherein the insulator main body is formed by joining the back surfaces of the bases so that the directions of the distal end portions of the first locking arms coincide with each other.   The conductive wire supporting insulator according to claim 2 or 3, wherein a slit for securing a creepage distance between the two conductive wires is formed in a portion of the insulator main body excluding the through hole.   The lever is divided into a first lever including the first locking arm and a second lever including the second locking arm, and the second lever is the first lever. 5. The conductive wire supporting insulator according to claim 2, wherein the conductive wire is supported by the mounting bracket.   The second lever is configured as a locking plate perpendicular to the first lever, and the second locking arm extends both sides of the locking plate in the first lever direction. The support insulator for a conductive wire according to claim 5, wherein the support insulator is formed as described above.   7. The conductive wire supporting insulator according to claim 6, wherein a second engaging plate extending in the first insulator direction is formed at an upper end portion and a lower end portion of the engaging plate. The insulators according to claim 1 are arranged in parallel in which the first locking arms are located coaxially, and the bases are joined together so that the upper surfaces of the bases form one surface, thereby Forming,
Provide a fixture that engages with the support on the back side of the insulator body,
A support insulator for a conductive wire, wherein two conductive wires can be supported in a non-contact state.   The support insulator for a conductive wire according to claim 8, wherein the bases are joined to form an insulator body so that a tip portion of the first locking arm faces in an opposite direction.   The conductive wire according to any one of claims 1 to 9, wherein free ends of the two second locking arms sandwiching the first locking arm are connected by an auxiliary arm. Supporting lion.

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