JP2020137481A - Bird damage prevention tool - Google Patents

Abstract

To provide a bird damage prevention tool that can easily pass between a set of edge lines.SOLUTION: The bird damage prevention tool 10 includes a prevention tool body 1 and a strip-like bar member 2. The prevention tool body 1 is composed of a base plate 11 and a plurality of needle bodies 12. The plurality of needle bodies 12 spread out in a sectorial shape along the longitudinal direction from the base plate 11. The bar member 2 has a plurality of restriction holes 2h opened in line for the needle bodies 12 to be inserted. Also, the bar member 2 is freely movably connected with the plurality of needle bodies 12 in a state crossing them 12. With the bar member 2 moved toward the base end part side of the needle bodies 12, the bird damage prevention tool 10 can spread the plurality of needle bodies 12 in an open angle. With the bar member 2 moved toward the tip end part side of the needle bodies 12, the bird damage prevention tool 10 can shut the plurality of needle bodies 12 in a closed angle. By closing the angle of the plurality of needle bodies 12, the bird damage prevention tool 10 can easily pass between a set of edge lines We, We.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bird damage prevention device. In particular, it is a bird damage prevention device suitable for indirect live-line work that can carry out electrical work without power failure using an insulating operation rod, and birds such as crows or pigeons nest on the arm fixed to the utility pole. Regarding the structure of bird damage prevention equipment that prevents bird damage that occurs in Japan.

For example, a utility pole has a square pipe-shaped arm mounted in a substantially horizontal state. The arm supports the fictitious transmission line via a pin insulator. When birds such as crows or pigeons nest on arms fixed to utility poles, there is a risk of bird damage such as bird droppings adhering to utility poles. For this reason, it is known to take measures against bird damage by installing a plurality of umbrella-shaped bird damage prevention devices, so-called umbrella bone-shaped bird damage prevention devices, on the arm to prevent the arrival of birds ( For example, see Patent Document 1).

On the other hand, there is also known a bird damage countermeasure that prevents the arrival of birds by installing a so-called needle mountain-shaped bird damage prevention device on the upper surface of the arm, which is a forest of needles with sharp tips (for example, patent). Reference 2).

Japanese Unexamined Patent Publication No. 2005-110571 Japanese Unexamined Patent Publication No. 11-289644

FIG. 9 is a perspective view showing a pillar-mounted state of an umbrella bone-shaped bird damage prevention device according to a conventional technique. Note that FIG. 9 of the present application corresponds to FIG. 9 of Patent Document 1.

Referring to FIG. 9, the utility pole P has a set of arms A and A fixed to the upper portion thereof in a horizontal state. The strap St is fixed to the arm A via the pin insulator Pi. A set of strain insulators Si and Si are arranged on both sides of a set of arms A and A. A set of strain insulators Si and Si are swingably connected to each other. On the other hand, the strain insulator Si is connected to the arm A via the strap St. The other strain insulator Si is oscillatingly connected to the retention clamp Ci.

Referring to FIG. 9, the retention clamp Ci is covered with an insulating cover. The retention clamp Ci sandwiches an overhead distribution line (hereinafter referred to as an electric wire) W inside the retaining clamp Ci. In the retaining pole shown in FIG. 9, the strain insulator Si connected to the retaining clamp Ci that sandwiches the electric wire W is attached to the arm A that supports the electric pole P, and the electric wire W is supported by the electric pole P. An electric wire W is erected between the pair of retaining clamps Ci and Ci without requiring tension. The portion of the electric wire W that bypasses the utility pole P is called, for example, the edge line We. Although the edge line We is not shown in Patent Document 1, in most cases, the edge line We is arranged.

With reference to FIG. 9, the bird damage prevention tool 8 is in a state where the spindle member 81 is arranged in a vertical state, a plurality of branch members 82 are continuously provided in the axial direction of the spindle member 81, and the branch member 82 is inclined downward. A branch rod 83 whose base end portion is fixed to the branch member 82 is provided.

With reference to FIG. 9, the bird damage prevention tool 8 is fixed to the arm A via the arm mounting bracket Br. By inserting the lower end portion of the spindle member 81 into the tubular portion provided on the tip end side of the arm metal mounting bracket Br, the spindle member 81 can be arranged in a vertical state.

With reference to FIG. 9, the bird damage prevention tool 8 according to Patent Document 1 states that the flying and nesting of birds can be prevented by arranging a plurality of branch rods 83 in a radial pattern. Further, since the branch rod 83 is supported in a state of being inclined downward, even if a wire for nesting is carried in, the branch rod 83 falls along the inclination, which makes nesting difficult.

With reference to FIG. 9, the bird damage prevention tool 8 according to Patent Document 1 can easily cut the branch rod 83 to an appropriate length by using a cutter, so that the branch rod 83 does not come into contact with a switch, a transformer, or the like. In addition, a plurality of branch rods 83 can be freely extended in a space on the utility pole P where there is a risk of nesting.

FIG. 10 is a perspective view showing the configuration of a needle mountain-shaped bird damage prevention tool according to the prior art, and is a state diagram in which the needle mountain-shaped bird damage prevention tool is attached to the arm. FIG. 11 is a perspective exploded view showing the configuration of a needle mountain-shaped bird damage prevention tool according to the prior art. Note that FIGS. 10 and 11 of the present application correspond to FIGS. 5 and 2 of Patent Document 2.

With reference to FIG. 10 or 11, the needle mountain-shaped bird damage prevention tool 9 according to the prior art is composed of a prevention tool main body 91 and a C-shaped support metal fitting 92. The preventive device main body 91 can prevent birds from flying to the arm A and nesting. The preventive tool main body 91 is molded of an insulating synthetic resin. The support metal fitting 92 can attach the preventive tool main body 91 to the arm metal A and can support the preventive tool main body 91.

With reference to FIG. 10 or 11, the preventive device main body 91 includes a strip-shaped lattice plate 91 g and a plurality of needle bodies 91p with sharp tips. The lattice plate 91g is composed of a plurality of vertical rail members 911 extending in the longitudinal direction and a plurality of horizontal rail members 912 substantially orthogonal to the vertical rail member 911. The needle body 91p is erected from the intersection of the vertical rail member 911 and the cross rail member 912 or from the end edge portion of the cross rail member 912.

With reference to FIG. 10 or 11, the support bracket 92 has a set of gripping pieces 92a and 92b and a connecting piece 92c. The set of gripping pieces 92a and 92b are arranged substantially in parallel with a predetermined interval. The pair of gripping pieces 92a and 92b have a bolt insertion hole 92h opened at their tips. The connecting piece 92c connects the base ends of a set of gripping pieces 92a and 92b to each other.

With reference to FIG. 10 or 11, the arm A can be introduced between the pair of gripping pieces 92a and 92b from the side surface direction thereof. After introducing the arm metal A between the set of gripping pieces 92a and 92b, the bolt member 93 is inserted into the bolt insertion hole 92h, and a nut member (not shown) is fastened to the tip end side of the bolt member 93 to support the metal fitting. 92 can be fixed to the arm A.

With reference to FIG. 10 or 11, the support bracket 92 further includes a rectangular holding plate 94. The holding plate 94 is joined to the upper surface of one of the gripping pieces 92a by welding. The holding plate 94 has a pair of hook-shaped fitting pieces 94a and 94a erected from one side thereof. Further, the holding plate 94 has a pair of hook-shaped locking pieces 94b and 94b erected from the other side portions. The fitting piece 94a and the locking piece 94b are arranged so as to face each other.

With reference to FIG. 10 or 11, the distance between the fitting piece 94a and the locking piece 94b has a dimension in which a set of vertical rail members 911 and 911 formed on the preventive tool main body 91 are fitted. After fitting one vertical rail member 911 to the pair of fitting pieces 94a / 94a, the other vertical rail member 911 is pushed into the pair of locking pieces 94b / 94b to hold the preventive tool main body 91 into the holding plate 94. Can be attached to.

The bird damage prevention tool 9 shown in FIG. 10 or 11 can be attached to the arm A by using an insulating operation rod (so-called insulating yatko) for indirect live-line construction (not shown). Then, the preventive tool main body 91 is attached to the holding plate 94 in advance.

Next, referring to FIG. 10 or FIG. 11, the connecting piece 92c of the support metal fitting 92 is gripped by using an insulating yatco (not shown). Next, with the connecting piece 92c gripped by the insulating yatko, the insulating yatko is operated to introduce the arm A between the pair of gripping pieces 92a and 92b.

Next, referring to FIG. 10 or FIG. 11, the bolt member 93 is inserted into the bolt insertion hole 92h using an insulating yatco (not shown). Next, a nut member (not shown) is fastened to the tip end side of the bolt member 93 using an insulating operation rod (not shown) with a box wrench. As a result, the bird damage prevention device 9 can be attached to the upper surface of the arm A (see FIG. 10).

Comparing the umbrella bone-shaped bird damage prevention device 8 shown in FIG. 9 with the needle mountain-shaped bird damage prevention device 9 shown in FIG. 10 or 11, the umbrella bone-shaped bird damage prevention device 8 has a needle mountain shape. Compared to the bird damage prevention device 9, the unit price is generally high because the configuration is complicated. Therefore, it is preferable to arrange a plurality of needle mountain-shaped bird damage prevention devices 9 on the arm in terms of installation cost.

The bird damage prevention device 8 according to Patent Document 1 is fixed to the arm metal mounting bracket Br by lowering the bird damage prevention device 8 from above the arm metal A, but the bird damage prevention tool 8 is fixed from below the arm metal A. Workability is better to lift. This also applies to the Hariyama-shaped bird damage prevention device 9.

However, when the bird damage prevention device is lifted from below the arm, it is necessary to pass between a set of edge lines We and We, and multiple branch rods that spread radially get in the way, and a set of edge lines. There is a problem that it is difficult to pass between We and We.

If you try to force a bird damage prevention device to pass between a set of edge lines We and We, you need to cover the edge line We with protective equipment such as an insulating sheet in advance, which causes a problem of increasing the work process. is there. There is a need for bird damage prevention equipment that can easily pass between a set of edges. The above can be said to be the subject of the present invention.

The present invention has been made in view of such a problem, and can easily pass between a set of edge lines, and after passing between a set of edge lines, birds nest on utility poles. The purpose is to provide bird damage prevention equipment to prevent this.

The present inventor has opened a preventive device main body having a plurality of needle bodies ridged from the substrate and a regulation hole into which the needle body is inserted, and has a plurality of needle bodies in a state of crossing the plurality of needle bodies. When a bird damage prevention device is composed of a bar member connected to the body and the bird damage prevention device is passed between a set of edge lines, the bar member is moved toward the tip side of the needle body to form a plurality of bar members. When the needle body is closed and the bird damage prevention device is installed on the arm, the above problem is achieved by moving the bar member toward the base end side of the needle body to open a plurality of needle bodies. Based on this, we have invented the following new bird damage prevention devices.

(1) The bird damage prevention tool according to the present invention includes a strip-shaped substrate, a protective tool main body having a plurality of needles having a plurality of needles having a divergent shape along the longitudinal direction from the substrate. A plurality of regulation holes into which the needle bodies are inserted are opened so as to be able to partition these needle bodies, and a bar member connected to the plurality of the needle bodies in a state of crossing the plurality of the needle bodies is provided. When the bar member is moved toward the base end side of the needle body, a plurality of the needle bodies are opened, and when the bar member is moved toward the tip end side of the needle body, a plurality of the needle bodies are opened. The needle body is closed.

(2) The substrate was bored along the longitudinal direction from the upper surface, and was inserted from the side surface and rotatably connected to the base end portion of the needle body and a recess into which the base end portion of the needle body could be inserted. It is preferable to have a connecting pin.

(3) The plurality of needles are engaged with both ends of the bar member, and the bar member is stopped at a predetermined position in a state where the bar member moves toward the base end side of the needle. It is preferable to have a pair of notched portions that can be formed at both ends.

(4) The needle body has a protrusion capable of stopping the bar member at a predetermined position in a state where the needle body engages with the bar member and the bar member moves toward the tip end side of the needle body. It is preferable to have.

(5) In the plurality of needle bodies, the needle bodies are such that the tip portions of the needle bodies can be projected upward while the bar member is moved toward the base end portion side of the needle bodies. It is preferably bent with respect to the extending direction.

(6) The bird damage prevention tool according to the present invention has a support portion for supporting the substrate from the bottom on one end side in a state where the plurality of needle bodies are upright, and has a holding portion that can be attached to and detached from the arm. It is further provided with an arm mounting bracket on the end side.

The bird damage preventive device according to the present invention has a preventive device main body having a plurality of needle bodies that are forested in a divergent shape from the substrate, a control hole into which the needle bodies are inserted, and a state in which the needle bodies are crossed. A bird damage prevention device is composed of a bar member connected to a plurality of needle bodies, and by moving the bar member toward the tip side of the needle body, the plurality of needle bodies can be closed and a set of edge lines can be closed. By easily passing the bird damage prevention device between the two, and moving the bar member toward the base end side of the needle body, a plurality of needle bodies can be opened and the nesting of birds can be made difficult.

It is a perspective view which shows the structure of the bird damage prevention tool by one Embodiment of this invention. It is a front view of the bird damage prevention tool according to the said embodiment, FIG. 2A is a state diagram in which a plurality of needle bodies are closed, and FIG. 2B is a state diagram in which a plurality of needle bodies are opened. is there. It is a figure which shows the structure of the arm metal attachment metal fitting provided in the bird damage prevention tool by the said embodiment, FIG. 3A is a front view of the arm metal metal fitting, and FIG. 3 (B) is the right side of the arm metal fitting. FIG. 3 (C) is a rear view of the arm metal mounting bracket, and FIG. 3 (D) is a bottom view of the arm metal mounting bracket. It is a right side view which shows the use state of the bird damage prevention tool by the said embodiment, and is the state figure before the bird damage prevention tool is attached to the arm. It is a right side view which shows the use state of the bird damage prevention tool by the said embodiment, and is the state figure which attached the bird damage prevention tool to the arm. It is a pillar drawing of the arm metal to attach the bird damage prevention tool by the said embodiment. It is a front view which shows the structure of the insulation operation rod for operating the bird damage prevention tool by this invention. It is an enlarged front view of the main part of FIG. It is a perspective view which shows the pillar state of the umbrella bone type bird damage prevention tool by the prior art. It is a perspective view which shows the structure of the needle mountain-shaped bird damage prevention tool by the prior art, and is the state figure which attached the needle mountain-shaped bird damage prevention tool to the arm. It is a perspective exploded view which shows the structure of the bird damage prevention tool of a needle mountain shape by a prior art.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

Before explaining the configuration of the bird damage prevention tool according to the present invention, the configuration of the insulating operation rod for operating the bird damage prevention tool according to the present invention will be described.

(Structure of insulation operating rod)
With reference to FIG. 7 or 8, the insulating operation rod 5 is composed of a long operation rod 51 and a tool portion 52. Further, the insulating operation rod 5 includes an operating rod 53. The tool portion 52 is attached to the tip end portion of the operation rod 51.

With reference to FIG. 7 or 8, the tool portion 52 is composed of a pair of curved gripping arms 5a and 5b that open and close. Then, one gripping arm 5a is a fixed arm having a fixed base end portion, and the other gripping arm 5b rotates about a rotation shaft 5c provided at the base end portion of one gripping arm 5a. It is a movable arm.

Referring to FIG. 7, the operating rod 53 is held along the operating rod 51. The tip of the operating rod 53 is rotatably connected to the other gripping arm 5b. Then, by operating the operation lever 54 provided at the base end portion of the operating rod 53, the other gripping arm 5b can be opened and closed with respect to one gripping arm 5a. The insulating operating rod 5 is made of a plastic pipe or the like in which the intermediate portion between the operating rod 51 and the operating rod 53 has an insulating property, and the insulating property is ensured so as to be suitable for the indirect live wire construction method.

With reference to FIG. 7, when the operation lever 54 is grasped and the operation lever 54 is brought close to the operation rod 51, the other gripping arm 5b can be closed with respect to one gripping arm 5a. When the operating lever 54 is released, the force of the spring (not shown) connected to the operating lever 54 can open the other gripping arm 5b with respect to one gripping arm 5a. FIG. 7 or FIG. 8 shows a state in which the other gripping arm 5b is opened to the maximum with respect to one gripping arm 5a.

With reference to FIG. 7 or 8, one gripping arm 5a projects a tapered gripping claw 51a. The gripping claw 51a forms a gripping surface 50a. The gripping surface 50a is formed substantially parallel to the rotation center of the rotation shaft 5c along the centrifugal direction. Similarly, the other gripping arm 5b projects a tapered gripping claw 51b. The gripping claw 51b forms a gripping surface 50b. The gripping surface 50b is arranged so as to have a predetermined opening angle with the gripping surface 50a. By grasping the operating lever 54 with reference to FIG. 7 or 8, the gripping surface 50b can be brought closer to the gripping surface 50a.

The insulation operation rod 5 shown in FIG. 7 or 8 is a so-called “insulation yatko” capable of gripping a high-voltage distribution line or the like arranged at a high place with a pair of gripping claws 51a and 51b.

[Structure of bird damage prevention equipment]
(overall structure)
Next, the configuration of the bird damage prevention device according to the embodiment of the present invention will be described. In addition, since the components having the same code as the code used in the prior art have the same action, the following description may be omitted.

With reference to FIGS. 1 to 6, the bird damage prevention device 10 according to the embodiment of the present invention can be installed on the arm A. The arm A is mounted on the utility pole P in a substantially horizontal state (see FIG. 6). In the example shown in FIG. 6, the arm A supports three pin insulators Pi and a lightning arrester Ar adjacent to the pin insulators Pi.

By installing the bird damage prevention device 10 on the arm A with reference to FIGS. 1 to 6, it is possible to prevent birds and the like from flying and nesting on the arm A.

Referring to FIGS. 1 to 6, the bird damage prevention tool 10 includes a prevention tool main body 1, a strip-shaped bar member 2, and a C-shaped arm metal fitting 3. The preventive tool main body 1 includes a strip-shaped substrate 11 and a plurality of quadrangular pyramid-shaped needles 12 having sharp tips. The plurality of needles 12 are erected from the substrate 11 in a divergent shape along the longitudinal direction thereof. It is preferable that the substrate 11 and the plurality of needles 12 are each molded of an insulating synthetic resin.

Referring to FIG. 1, the bar member 2 opens a plurality of regulation holes 2h into which the needle body 12 is inserted in a row. By inserting the needle body 12 into the regulation hole 2h on a one-to-one basis, a plurality of needle bodies 12 can be separated from each other. Further, the bar member 2 is movably connected to the plurality of needle bodies 12 in a state of crossing the plurality of needle bodies 12. In FIG. 1, for convenience of explanation, the bar member 2 is shown in duplicate.

With reference to FIG. 2B, in a state where the bar member 2 is moved toward the proximal end side of the needle body 12, the bird damage prevention tool 10 opens a plurality of needle bodies 12. On the other hand, referring to FIG. 2A, in a state where the bar member 2 is moved toward the tip end side of the needle body 12, the bird damage prevention tool 10 closes a plurality of needle bodies 12.

Referring to FIGS. 1 to 6, the bird damage preventive device 10 according to the embodiment has a preventive tool main body 1 having a plurality of needle bodies 12 standing in a divergent shape from the substrate 11 and a regulation hole 2h into which the needle bodies 12 are inserted. Is opened, and the bar member 2 is connected to the plurality of needle bodies 12 in a state of crossing the plurality of needle bodies 12.

With reference to FIG. 9, when passing the bird damage prevention device 10 between a set of edge lines We and We, a plurality of bar members 2 are moved toward the tip end side of the needle body 12. The needle body 12 can be closed (see FIG. 2 (A)). As a result, the bird damage prevention device 10 can be easily passed between the set of edge lines We and We.

With reference to FIG. 9, a plurality of bar members 2 are moved toward the base end side of the needle body 12 after passing the bird damage prevention device 10 between the set of edge lines We and We. The needle body 12 can be opened (see FIG. 2B). In the state shown on the right side of FIG. 1 or FIG. 2 (B) and FIG. 4, since the plurality of needles 12 are opened at an angle, it is possible to make nesting of birds difficult.

(Structure of preventive device body)
Next, the configuration of the preventive device main body 1 according to the embodiment will be described. Referring to FIG. 1 or FIG. 2, the substrate 11 has a concave portion 11a opened in a rectangular shape and a plurality of connecting pins 11p.

Referring to FIG. 1, the recess 11a is bored from the upper surface of the substrate 11 along the longitudinal direction of the substrate 11. The base end portions of the plurality of needle bodies 12 can be inserted into the recess 11a. With reference to FIG. 1 or 2, the connecting pin 11p can be inserted from the side surface of the substrate 11. The connecting pin 11p is rotatably connected to the base end portion of the needle body 12. As a result, the preventive tool main body 1 can swing the plurality of needle bodies 12 so that the state in which the plurality of needle bodies 12 are opened and the state in which the plurality of needle bodies 12 are closed can be changed.

(Composition of needle body)
Next, the configuration of the needle body 12 according to the embodiment will be described. Referring to FIGS. 1 to 5, the plurality of needle bodies 12 have a pair of notched portions 12a and 12a at both ends. The pair of notched portions 12a and 12a are notched in opposite directions. Further, the pair of notch portions 12a and 12a are notched on the base end portion side of the needle body 12.

When the bar member 2 is moved toward the base end portion side of the needle body 12 with reference to FIG. 2, the pair of cutout portions 12a and 12a are engaged with the regulation holes 2h and 2h at both ends of the bar member 2. Can be matched. As a result, the bar member 2 can be stopped at a predetermined position with respect to the plurality of needle bodies 12. Then, the state in which the plurality of needle bodies 12 are opened can be maintained.

Referring to FIGS. 1 to 4, the central needle body 12 has a hemispherical protrusion 12b protruding from one side surface. The protrusion 12b is arranged on the tip end side of the needle body 12. When the bar member 2 is moved toward the tip end side of the needle body 12 from the state shown in FIG. 2B, the plurality of needle bodies 12 can be closed. When the bar member 2 gets over the protrusion 12b, the bar member can be stopped at a predetermined position. As a result, the state in which the plurality of needle bodies 12 are closed can be maintained.

With reference to FIG. 1 or FIG. 2B, in the plurality of needle bodies 12, the tip portions of the plurality of needle bodies 12 are upward in a state where the bar member 2 is moved toward the base end portion side of the needle body 12. It is preferable that the needle body 12 is bent in the extending direction so as to be able to project toward. As a result, it is possible to prevent birds from flying to the bird damage prevention device 10.

(Structure of arm mounting bracket)
Next, the configuration of the arm metal mounting bracket 3 according to the embodiment will be described. Referring to FIGS. 1 to 5, the arm mounting bracket 3 has a set of gripping pieces 3a and 3b and a connecting piece 3c. A set of gripping pieces 3a and 3b are arranged substantially in parallel with a predetermined interval. The arm A can be introduced into the set of gripping pieces 3a and 3b from the side surface side thereof. The connecting piece 3c connects the base ends of a set of gripping pieces 3a and 3b to each other.

Referring to FIGS. 1 to 5, the arm bracket 3 has a support portion 31 erected from one grip piece 3a. As an entity, the support portion 31 is composed of a cylindrical member. The support portion 31 supports the substrate 11 from the bottom side thereof.

On the other hand, referring to FIGS. 1 to 5, the arm metal fitting 3 has a grip portion 32 protruding from the other grip piece 3b. As an entity, the grip portion 32 is composed of a rectangular plate welded to the outer surface of the connecting piece 3c (see FIG. 3 (A)). The grip portion 32 can be gripped by the insulating operation rod 5 for indirect live-line work (see FIG. 7 or FIG. 8).

Referring to FIGS. 1 to 5, the arm mounting bracket 3 further includes a rotating shaft 33s, a bolt member 33, and one or more nut members N. Both ends of the rotating shaft 33s are rotatably connected to a bent piece formed on one of the gripping pieces 3a. The head of the bolt member 33 is joined to the rotating shaft 33s in a T shape. The nut member N can be screwed with the threaded portion of the bolt member 33.

Referring to FIG. 1 or FIG. 3D, the other gripping piece 3b has a notch 33d notched from the tip edge. The bolt member 33 can be introduced into the notch 33d from the outer peripheral direction.

With reference to FIG. 3 or 5, the bolt member 33 is introduced into the notch 33d, and then the nut member N is fastened to the other gripping piece 3b to fix the arm metal mounting bracket 3 to the arm metal A. it can.

[Action of bird damage prevention equipment]
Next, the action and effect of the bird damage prevention tool 10 will be described while explaining the operation procedure of the bird damage prevention tool 10 according to the embodiment.

First, referring to FIG. 2 (A) or FIG. 3 (A), in the bird damage prevention tool 10, the bar member 2 is attached to the needle body 12 with the prevention tool main body 1 fixed to the arm metal fitting 3. It is preferable to move toward the tip end side and close the angle of the plurality of needle bodies 12.

Next, by using the insulating operation rod 5 (see FIG. 6 or 7) to grip the grip piece 24 provided on the arm metal fitting 3, the bird damage prevention tool 10 with the arm metal fitting 3 is raised. , The bird damage prevention device 10 can be easily passed between the set of edge lines We and We (see FIG. 9).

Further, referring to FIG. 4, the grip portion 32 is gripped by the pair of gripping arms 5a and 5b in a state where the bolt member 33 is upright. Next, the insulating operation rod 5 is operated to introduce the arm metal A from the side surface side between the set of gripping pieces 3a and 3b.

Next, with reference to FIG. 5, the bolt member 33 is rotated clockwise to introduce the tip end side of the bolt member 33 into the notch 33d (see FIG. 3D). Next, referring to FIG. 5, by fastening the nut member N to the bolt member 33, the arm metal A can be sandwiched between the set of gripping pieces 3a and 3b.

Next, referring to FIG. 6, after fixing the arm metal mounting bracket 3 to the arm metal A, an insulating operation rod (not shown) having a hook-shaped hook tool (so-called bind hammer) at the tip thereof is used. By moving the bar member 2 toward the proximal end side of the needle body 12, the plurality of needle bodies 12 can be maintained in a closed angle state. As a result, it is possible to prevent the arrival of birds and prevent bird damage. The right side of FIG. 6 shows a state in which the plurality of needle bodies 12 are closed.

Referring to FIGS. 1 to 6, the bird damage preventive device 10 according to the embodiment has a preventive tool main body 1 having a plurality of needle bodies 12 standing in a divergent shape from the substrate 11 and a regulation hole 2h into which the needle bodies 12 are inserted. Is opened, and the bar member 2 is connected to the plurality of needle bodies 12 in a state of crossing the plurality of needle bodies 12.

With reference to FIG. 9, when passing the bird damage prevention device 10 between a set of edge lines We and We, a plurality of bar members 2 are moved toward the tip end side of the needle body 12. The needle body 12 can be closed (see FIG. 2 (A)). As a result, the bird damage prevention device 10 can be easily passed between the set of edge lines We and We.

With reference to FIG. 9, a plurality of bar members 2 are moved toward the base end side of the needle body 12 after passing the bird damage prevention device 10 between the set of edge lines We and We. The needle body 12 can be opened (see FIG. 2B). In the state shown on the right side of FIG. 1 or FIG. 2 (B) and FIG. 4, since the plurality of needles 12 are opened at an angle, it is possible to make nesting of birds difficult.

The bird damage prevention tool 10 according to the embodiment can stop the bar member 2 at a predetermined position in a state where the bar member 2 moves toward the base end portion side of the needle body 12. Further, in the bird damage prevention tool 10 according to the embodiment, the bar member 2 can be stopped at a predetermined position in a state where the bar member 2 is moved toward the tip end side of the needle body 12. The bird damage prevention device 10 according to the embodiment can maintain a state in which the plurality of bar members 2 are open and a state in which the bar members 2 are closed.

The bird damage prevention device according to the present invention can be expected to have the following effects.
(1) It can be easily attached to the arm by indirect live-line work by utilizing a relatively inexpensive needle-mountain-shaped bird damage prevention device.
(2) Bird damage prevention equipment can pass through even in a narrow space such as an edge line.
(3) After attaching the bird damage prevention device to the arm, a plurality of needles can be opened and closed.
(4) The installation time of the bird damage prevention device can be shortened.

The bird damage prevention device according to the present invention discloses an embodiment in which nine flying prevention rods are arranged radially, but it is conceivable that the number of these flying prevention rods may be increased or decreased.

1 Preventive device body 2 Bar member 2h Regulation hole 10 Bird damage preventive device 11 Board 12 Needle body

Claims (6)

A strip-shaped substrate, and a preventive tool main body having a plurality of needles having a divergent shape extending from the substrate along the longitudinal direction and having a sharp tip.
A bar member that is movably connected to the plurality of needle bodies while opening a plurality of regulation holes into which the needle bodies are inserted so as to be able to partition these needle bodies and crossing the plurality of the needle bodies. With
In a state where the bar member moves toward the base end side of the needle body, the plurality of the needle bodies are opened at an angle.
A bird damage prevention device that closes a plurality of the needle bodies when the bar member is moved toward the tip end side of the needle body. The substrate is
A recess that is drilled along the longitudinal direction from the upper surface and into which the base end of the needle can be inserted.
The bird damage prevention device according to claim 1, further comprising a connecting pin that is inserted from the side surface and rotatably connected to the base end portion of the needle body. The plurality of needle bodies are engaged with both ends of the bar member, and the bar member can be stopped at a predetermined position in a state where the bar member moves toward the base end portion side of the needle body. The bird damage prevention device according to claim 1 or 2, which has notches at both ends. A claim that the needle body has a protrusion capable of stopping the bar member at a predetermined position in a state where the needle body is engaged with the bar member and the bar member is moved toward the tip end side of the needle body. The bird damage prevention device according to any one of Items 1 to 3. In the plurality of needle bodies, in a state where the bar member is moved toward the base end portion side of the needle body, the tip portions of the needle bodies can be projected upward in a direction in which the needle body extends. The bird damage prevention device according to any one of claims 1 to 4, which is bent relative to the object. Further provided with an arm metal fitting having a support portion for supporting the substrate from the bottom on one end side and a holding portion detachable from the arm metal on the other end side in a state where the plurality of needles are upright. The bird damage prevention device according to any one of claims 1 to 5.

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