Method for installing bird pest prevention equipment, installation kit for use therein, bird pest prevention equipment, and reel equipment

Abstract

To provide a bird damage prevention tool construction method that can facilitate construction, a construction kit used therefor, a bird damage prevention tool, and a reel tool.SOLUTION: A bird damage prevention tool construction method includes a first step of preparing n pieces of bird damage prevention tools 2, a rod-shaped tool, and a reel tool 3, a second step of attaching a rope W unwound from the roll of the reel tool to a gripping portion of the k-th bird damage prevention tool (1≤k<n) and attaching the k-th bird damage prevention tool to an overhead wire C, a third step of feeding out the rope from the roll by separating the reel tool from the k-th bird damage prevention tool in the construction direction with the rod-shaped tool in a state where a guide part of the reel tool is placed on the overhead wire, and a fourth step of attaching the (k+1)th bird damage prevention tool to the overhead wire at a position spaced apart from the k-th bird damage prevention tool in the construction direction, and attaching the rope fed out from the roll to the gripping portion of the (k+1)th bird damage prevention tool. The second step to the fourth step are repeated a predetermined number of times equal to or less than n.SELECTED DRAWING: Figure 19

Description

[Technical field]

[0001] The present invention relates to a method for installing a bird pest prevention device, an installation kit used therefor, a bird pest prevention device, and a reel device. [Background technology]

[0002] Various bird pest prevention devices have been proposed for attaching cables to prevent birds from landing on electric wires. For example, Patent Document 1 discloses a unit to which multiple bird pest prevention devices are attached. Each bird pest prevention device has a cable attached in advance, and when this unit is placed on the electric wire and the multiple bird pest prevention devices are spaced apart, the cable can be stretched between the bird pest prevention devices. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6437898 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0004] However, with the above-mentioned units, it is necessary to attach a cable to each bird pest prevention device in advance, and the bird pest prevention device must be separated from the unit on the electric wire, which makes installation complicated.

[0005] The present invention has been made to solve the above problems, and aims to provide a method for installing bird pest prevention equipment, an installation kit used therefor, a bird pest prevention equipment, and a reel equipment that allow installation to be easily performed. [Means for solving the problem]

[0006] The method for installing a bird damage prevention device according to the present invention includes: an electric wire attachment part attached to an overhead electric wire, and a gripping part provided above the electric wire attachment part and to which a cord for preventing bird damage is attached. The method comprises the following steps: a first step of preparing n (n is a natural number) bird damage prevention devices, a rod-shaped tool, a roll around which the cord is wound, a reel device having a guide part movable along the overhead electric wire and an attachment part engageable with the rod-shaped tool; a second step of attaching the cord unwound from the roll of the reel device to the gripping part of the k-th bird damage prevention device (1 ≤ k < n) and attaching the k-th bird damage prevention device to the overhead electric wire; a third step of feeding out the cord from the roll by separating the reel device from the k-th bird damage prevention device in the construction direction by the rod-shaped tool with the guide part of the reel device placed on the overhead electric wire; and a fourth step of attaching the (k + 1)-th bird damage prevention device to the overhead electric wire at a position separated from the k-th bird damage prevention device in the construction direction and attaching the cord fed out from the roll to the gripping part of the (k + 1)-th bird damage prevention device. The second step to the fourth step are repeated a predetermined number of times not exceeding n.

[0007] In the above method for installing a bird damage prevention device, when an obstacle is provided on the overhead electric wire, in the third step, the rod-shaped tool can be configured to lift the reel device upward from the overhead electric wire, cross the obstacle in the construction direction, and then place the reel device on the overhead electric wire.

[0008] The construction kit according to the present invention is a construction kit used in any of the above-described methods for installing a bird damage prevention device, and includes the n bird damage prevention devices and the reel device.

[0009] The bird pest prevention device according to the present invention is a bird pest prevention device used in any of the above-mentioned methods for installing the bird pest prevention device, comprising the electric wire attachment portion and the gripping portion, the gripping portion comprising a first clamping member extending upward from the electric wire attachment portion and a second clamping member arranged to approach and separate from the first gripping portion and clamp the cable between the first clamping member, the second clamping member comprising an engaging portion extending toward the first clamping member and an extending portion extending upward from a base end of the engaging portion, the first clamping member comprising an engaged portion with which the engaging portion of the second clamping member can be engaged, and a protruding portion provided above the engaged portion and protruding from a surface opposite to the second clamping member, the protruding portion being arranged at a position opposite to the extending portion when the engaging portion engages with the engaged portion. This bird pest prevention device can be applied to methods other than the above-mentioned installation methods. In other words, as long as it is attached to an electric wire and used to fix a cable, the construction method is not particularly limited.

[0010] In the above bird pest prevention device, the engaged portion is formed by a through hole, and when the engaging portion engages with the engaged portion, a part of the engaging portion passes through the through hole and protrudes from the side of the first clamping member opposite the second clamping member, and the tip of the engaging portion when it protrudes from the opposite side through the through hole is positioned on the opposite side of the first clamping member relative to the tip of the protruding portion.

[0011] The reel device of the present invention is a reel device used in any of the above-mentioned bird pest prevention device installation methods, and is provided with the roll, the guide portion, and at least one of the mounting portions, and a guide path for the overhead electric wire leading to the guide portion is formed along the mounting portion.

[0012] In the above-described reel device, the pair of mounting portions may be arranged side by side in the horizontal direction at a predetermined interval, and the guide path may be formed between the pair of mounting portions. Effect of the Invention

[0013] According to the present invention, construction can be easily carried out. [Brief description of the drawings]

[0014] [Figure 1] This is a front view of the first bird pest prevention device attached to an overhead electric line, viewed from the axial direction of the overhead electric line. [Diagram 2] FIG. 2 is a perspective view of the first bird pest prevention device of FIG. 1. [Diagram 3] 3 is a perspective view of the first bird pest prevention device as viewed from the opposite side to FIG. 2. FIG. [Figure 4] This is an example of a rod-shaped member. [Diagram 5] 4 is a cross-sectional view showing a state in which the first bird pest prevention device is clamping a bird pest prevention rope. FIG. [Figure 6] FIG. 13 is a diagram illustrating the installation of the rope. [Figure 7] 11 is a front view of the second bird pest prevention device attached to the overhead electric wire, as viewed in the axial direction of the overhead electric wire. FIG. [Figure 8] FIG. 8 is a perspective view of the second bird pest prevention device of FIG. 7. [Figure 9] FIG. 8 is a perspective view of the second bird-prevention device as viewed from the opposite side to FIG. 7. [Figure 10] 13 is a diagram illustrating the attachment of an electric wire to the second bird pest prevention device. FIG. [Figure 11] FIG. [Figure 12] FIG. 2 is a diagram showing an electric wire to be subjected to construction work. [Figure 13] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 14] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 15] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 16] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 17] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 18] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 19]FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. [Figure 20] FIG. 13 is a diagram illustrating a method for installing the bird pest prevention device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of a bird pest prevention device installation method according to the present invention will be described with reference to the drawings. In this installation method, a plurality of bird pest prevention devices are attached to an overhead electric wire at a predetermined interval, and a cable for bird pest prevention is attached across the plurality of attached bird pest prevention devices. Hereinafter, first, an installation kit used in this installation method will be described, and then, an installation method for the bird pest prevention device using this installation kit will be described.

[0016] <1. Installation kit> The installation kit according to this embodiment is composed of a first bird pest prevention device, a second bird pest prevention device, and a reel device. Each device will be described in detail below.

[0017] <1-1. First bird damage prevention device> Fig. 1 is a front view of the first bird pest prevention device attached to the overhead electric wire, as viewed from the axial direction of the overhead electric wire, Fig. 2 is a perspective view of the first bird pest prevention device in Fig. 1, and Fig. 3 is a perspective view of the first bird pest prevention device as viewed from the opposite side to Fig. 2. For convenience of explanation, the following description will be given according to the directions shown in Figs. 1 to 3. However, the present invention is not limited to these directions.

[0018] As shown in Figures 1 to 3, the first bird pest prevention device 1 comprises an electric wire attachment portion 10 that is attached to an electric wire C, which is an overhead electric wire, a first clamping member 20 that extends upward from the electric wire attachment portion 10, and a second clamping member 30 that grasps a cable W between the first clamping member 20.

[0019] The wire mounting portion 10 comprises a holder body 11 extending downward from the lower end of the first clamping member 20, an axis portion 12 formed near the upper end of the holder body 11 and extending horizontally (front-to-back direction), and a holder cover body 13 connected to the axis portion 12 so as to be rotatable around the axis L1.

[0020] The holder body 11 has an upper part 111 extending from the first clamping member 20, an intermediate part 112 extending downward from the upper part 111, and a lower part 113 connected to the lower end of the intermediate part 112, and is formed into a C-shape as a whole when viewed from the front. The lower part 113 is provided with a screw hole (not shown) penetrating therethrough. A bolt 14 is screwed into the screw hole, and an electric wire support part 15 is provided at its upper end. The electric wire support part 15 is located inside the holder body 11, that is, between the upper part 111 and the lower part 113, and is formed in a plate shape. The electric wire support part 15 is formed with a recess extending in the axial direction of the electric wire C so as to support the electric wire C from below. Meanwhile, an operation part 16 is provided at the lower end of the bolt 14, that is, below the holder body 11. By rotating the operating part 16, the electric wire support part 15 moves up and down together with the bolt 14, and the electric wire C can be clamped and fixed between the bolt 14 and the underside of the upper part 111 of the holder main body 11. In order to improve operability, a grip 11g is formed near the joint between the middle part 112 and the lower part 113 of the holder main body 11.

[0021] The operating part 16 is formed in a cylindrical shape, and a notch 161 is formed in the wall thereof into which the protrusion 51 of the rod-shaped tool 5 (long tool) as shown in Fig. 4 fits. Therefore, the worker inserts the tip of the rod-shaped tool 5 into the operating part 16, and rotates the rod-shaped tool 5 around its axis with the protrusion 51 engaged with the notch 161. This rotates the operating part 16, and allows the bolt 14 to be advanced and retreated as described above.

[0022] The above-mentioned shaft 12 is provided at the front end of the upper part 111 of the holder body 11, and the upper end of the holder lid 13 is attached to the shaft 12. As a result, the holder lid 13 is connected so as to be rotatable around the shaft 12. The lower end of the holder lid 13 is removably fixed to the front end of the lower part 113 of the holder body 11. That is, a fixing hole 131 formed at the lower end of the holder lid 13 and a protrusion 116 provided at the front end of the lower part 113 are removably engaged. With this configuration, the holder lid 13 rotates around the shaft 12 and can selectively take a closed position that closes the gap between the front end of the upper part 111 and the front end of the lower part 113, and an open position that opens the gap.

[0023] With the above configuration, the electric wire C is attached as follows. First, the holder cover 13 is moved to the open position. Next, the electric wire C is placed on the electric wire support part 15, and the operation part 16 is rotated to raise the electric wire support part 15. Then, the operation part 16 is rotated until the electric wire C is firmly clamped between the upper part 111 of the holder body 11 and the electric wire support part 15. Thereafter, the holder cover 13 is moved to the closed position, and the attachment of the electric wire C is completed.

[0024] 1 to 3, the holder body 11 extends obliquely downward relative to the first clamping member 20. That is, the axial direction of the bolt 14 is inclined relative to the up-down direction in which the first clamping member 20 extends, and the operating part 16 is located to the left of the first clamping member 20. This allows the operating part to face the worker's side, improving workability.

[0025] Next, the first clamping member 20 will be described. The first clamping member 20 has a main body 21 formed in a plate shape, and this main body 21 extends upward from the upper end of the electric wire attachment portion 10. A shaft 22 extending horizontally (front-rear direction) is formed at the lower end of the main body 21, and a second clamping member 30 described later is attached to this shaft 22 so as to be rotatable. The second clamping member 30 rotates with respect to the first clamping member 20, and can take a closed position where it overlaps with the first clamping member 20 and an open position where it is separated from the first clamping member 20. When the second clamping member 30 is in the closed position, the cable W is clamped between the second clamping member 30 and the first clamping member 20.

[0026] A recess 29 extending in the vertical direction is provided on the left side surface of the main body 21, and a pair of first claws 26 and a pair of second claws 27 protruding to the left are provided to sandwich the recess 29. Each of the first claws 26 is disposed near the middle of the main body 21, and each of the second claws 27 is disposed below the first claws 26. As described later, the construction worker performs construction by placing the rope W on one of the claws 26, 27.

[0027] In the main body 21, an engagement hole 23 is formed above the first claw 26, into which an engagement claw 32 of the second clamping member 30 described later engages. Furthermore, on the right side surface of the main body 21, a plate-shaped hooking portion 25 protruding to the right is formed above the engagement hole 23. The hooking portion 25 has a first portion 251 protruding from the main body 21 and a second portion 252 protruding upward from the tip of the first portion.

[0028] Next, the second clamping member 30 will be described. The second clamping member 30 has a main body 31 formed in a plate shape. As described above, the lower end of the second clamping member 30 is rotatably attached to the shaft of the first clamping member 20. A pair of plate-shaped pressing parts 34 are provided on the right side surface of the main body 31 and are arranged at a predetermined interval in the horizontal direction (front-rear direction). When the second clamping member 30 is in the closed position, both pressing parts 34 are adapted to engage with the recessed parts 29 of the first clamping member 20.

[0029] Each pressing portion 34 is provided with recesses formed at intervals in the up-down direction. Here, the upper recess is referred to as a first recess 341, and the lower recess is referred to as a second recess 342. When the second clamping member 30 is in the closed position, the first recess 341 is disposed at a position corresponding to the first claw portion 26, and the second recess 342 is disposed at a position corresponding to the first claw portion 26.

[0030] 5 is a cross-sectional view showing a state in which the bird damage prevention device 1 clamps the bird damage prevention cord W. As shown in FIG. 5, the cord W is clamped between the recessed portion 29 of the first clamping member 20 and the pressing portion 34 of the second clamping member 30, and is held so as not to move in the horizontal direction. When the cord W is placed on the first claw portion 26, the cord W is positioned on the first claw portion 26 and in the first recess 341, so that it is held so as not to move in the vertical direction. Similarly, when the cord W is placed on the second claw portion 27, the cord W is positioned on the second claw portion 27 and in the second recess 342, so that it is held so as not to move in the vertical direction.

[0031] On the right surface of the main body 31, above the pressing portion 34, a plate-shaped engaging claw 32 is formed, and as described above, this engaging claw 32 is adapted to engage with the engaging hole 23 of the first clamping member 20. When the second clamping member 30 is in the closed position, the engaging claw 32 penetrates the engaging hole 23 and its tip protrudes to the right of the first clamping member 20. At this time, the lengths of the engaging portion 25 and the engaging claw 32 are adjusted so that the engaging portion 25 protrudes to the right beyond the engaging claw 32, as shown in Fig. 6(b) described later.

[0032] Further, an extending portion 38 that is L-shaped when viewed from the front is provided at the upper end of the main body 31. This extending portion 38 has a plate-shaped first portion 381 extending upward from the left surface of the upper end of the main body 31, and a plate-shaped second portion 382 extending rightward from the upper end of the first portion 381. When the second clamping member 30 is in the closed position, the tip of the second portion 382 abuts against a position of the first clamping member 20 that corresponds to the engaging portion 25.

[0033] The first clamping member 20 and the second clamping member 30 can be formed of a thermoplastic synthetic resin having high weather resistance and electrical insulation, for example, by injection molding. As the thermoplastic synthetic resin having high weather resistance and electrical insulation, for example, any one of polycarbonate, ABS (Acrylonitrile Butadiene Styrene), and AES (Acrylonitrile Ethylene Styrene) can be suitably used. This point is also the same for the second bird pest prevention device 2.

[0034] Next, the installation of the cable will be described with reference to FIG. 6. First, a clamping tool (long tool) with a clamping tool such as pliers attached to the tip is prepared. Next, as shown in FIG. 6(a), the cable W is placed on the first claw portion 26 or the second claw portion 27. In the example of FIG. 6(a), the cable W is placed on the first claw portion 26. Next, the clamping tool clamps the extension portion 38 of the second clamping member 30 and the engagement portion 25 of the first clamping member 20, and the second clamping member 30 is moved to the closed position. As a result, as shown in FIG. 6(b), the engagement claw 32 engages with the engagement hole 23, the second clamping member 30 is held by the first clamping member 20, and the cable W is clamped between the clamping members 20, 30.

[0035] <1-2.Second bird damage prevention device> Fig. 7 is a front view of the second bird pest prevention device attached to the overhead electric wire, as viewed from the axial direction of the overhead electric wire, Fig. 8 is a perspective view of the second bird pest prevention device in Fig. 7, and Fig. 9 is a perspective view of the second bird pest prevention device as viewed from the opposite side to Fig. 7. For convenience of explanation, the following description will be given according to the directions shown in Figs. 7 to 9. However, the present invention is not limited to these directions.

[0036] 7 to 9, the second bird pest prevention device 2 includes an electric wire attachment part 40 that is attached to an electric wire C that is an overhead electric wire, a first clamping member 50 that extends upward from the electric wire attachment part 40, and a second clamping member 60 that grips the cable W between the first clamping member 50. In the second bird pest prevention device, the configurations of the first clamping member 50 and the second clamping member 60 are the same as those of the first bird pest prevention device 1, so a description thereof will be omitted.

[0037] The electric wire attachment portion 40 has a base portion 41 having a rectangular outer shape, a first holding portion 42 having an L-shape in a front view extending upward from a right front end portion of the base portion 41, and a second holding portion having an L-shape in a front view extending upward from a left rear end portion of the base portion 41. Therefore, the first holding portion 42 and the second holding portion 43 are arranged with an interval in the front-rear direction.

[0038] The first holding portion 42 has a first portion 421 extending upward from the base portion 41, and a second portion 422 extending leftward from an upper end of the first portion 421. Similarly, the second holding portion 43 has a first portion 431 extending upward from the base portion 41, and a second portion 432 extending rightward from an upper end of the first portion 431. The above-mentioned first clamping member 50 is connected to the second portion 422 of the first holding portion 42 so as to extend upward.

[0039] A cylindrical tube member 44 extending downward is disposed in the center of the base portion 41, and a rod-shaped member 45 biased upward by a spring (not shown) is attached to the tube member 44. A plate-shaped electric wire support portion 46 is attached to the upper end of the rod-shaped member 45. With this configuration, as shown in Figs. 5 to 7, the electric wire C is held between the second portions 422, 432 of the first holding portion 42 and the second holding portion 43 and the electric wire support portion 46. Since the electric wire support portion 46 is biased upward by the spring, the electric wire C on the electric wire support portion 46 is pressed against the second portions 422, 432 of the first holding portion 42 and the second holding portion 43, and the electric wire C is held by the electric wire attachment portion 40.

[0040] A cylindrical operating part 47 is attached to the lower end of the tubular member 44. A notch 471 into which a protrusion 51 of a rod-shaped tool (long tool) 5, which will be described later, fits is formed in the wall of this operating part 47. Therefore, the worker can insert the tip of the rod-shaped tool 5 into the operating part 47 and move the second bird damage prevention device 2 with the protrusion 51 engaged with the notch 471.

[0041] As shown in Fig. 10, an electric wire C is attached to this electric wire attachment part 40. In Fig. 10, the gray arrow indicates the operation of the second bird pest prevention device 2 by the construction worker, and the dashed arrow indicates the relative movement of the electric wire C with respect to the second bird pest prevention device 2. First, with the rod-shaped tool 5 attached to the operation part 47 of the second bird pest prevention device 2, the second bird pest prevention device 2 is raised from below the electric wire C, and the electric wire C is inserted between the first holding part 42 and the second holding part 43. As a result, the electric wire C is placed on the electric wire support part 46. When the second bird pest prevention device 2 is pushed up in this state, the electric wire support part 46 is pushed down by the electric wire C. Then, when the electric wire C reaches the gap between the tip of the second part 422 of the first holding part 42 and the base part 41, and the gap between the tip of the second part 432 of the second holding part 43 and the base part 41, the electric wire C is inserted into these gaps while rotating the second bird pest prevention device 2 around the axial direction of the tubular member 44 by the rod-shaped tool 5. As a result, the electric wire C is arranged at the position shown in Figs. 5 to 7. Then, when the long tool is removed, the electric wire C is pushed up by the electric wire support part 46 and is held by the electric wire attachment part 40.

[0042] The method of attaching the cord W to the second bird pest prevention device 2 is the same as that of the first bird pest prevention device 1, so a description thereof will be omitted.

[0043] <1-3. Reel equipment> Next, the reel device 3 will be described. FIG. 11 is a front view of the reel device. As shown in FIG. 11, the reel device 3 includes a first mounting portion 70 having a rectangular shape when viewed from the front, and a second mounting portion 80 adjacent to the first mounting portion 70 with a gap (guide path) therebetween. Both mounting portions 70, 80 are formed in a frame shape having a cavity, and upper sides 71, 81 are formed to extend horizontally. The upper sides 71, 81 of both mounting portions 70, 80 are connected to each other by a rod-shaped connecting portion 85 extending horizontally, thereby forming a gap between both mounting portions 70, 80. In addition, a guide portion 87 is provided near the upper end of the gap between both mounting portions 70, 80. This guide portion 87 is formed in a drum shape so as to rest on the electric wire C, and is rotatable around an axis parallel to the connecting portion 85.

[0044] Further, an extension part 75 having an L-shape in a front view is provided at the left lower end of the first mounting part 70, the extension part 75 having a first part 751 extending downward and a second part 752 extending from the lower end of the first part 751 to the right. A roll 90 on which a cable W is wound is rotatably attached to the second part 752 of the extension part 75. Therefore, the cable W is unwound by the rotation of the roll 90. Further, the electric wire C is attached so as to pass between the second mounting part 80 and the roll 90, and further pass through the gap between the mounting parts 70, 80 to reach the guide part 87.

[0045] <2. How to install bird pest prevention equipment> Next, a method for installing bird pest prevention devices using the installation kit configured as above will be described. First, two first bird pest prevention devices 1 and a number of second bird pest prevention devices 2 according to the length of the electric wire to be installed are prepared. The first bird pest prevention devices 1 are placed at both ends of the electric wire C to be installed, and multiple second bird pest prevention devices 2 are placed between them. Although the interval between adjacent bird pest prevention devices 1, 2 is generally about 2 m, it is not particularly limited because it can be changed appropriately depending on the installation situation. In the following, the attachment of the electric wire C and the cords W to each bird pest prevention device 1, 2 will be omitted because it has been described above.

[0046] Here, an example will be described in which a bird pest prevention device is installed on one of a number of overhead electric wires C arranged in parallel as shown in Fig. 12. The electric wires C are connected at a predetermined interval by a connecting wire B. For ease of explanation, the base end side in the direction in which the bird pest prevention device is installed will be referred to as the upstream side, and the opposite side will be referred to as the downstream side. For ease of explanation, Figs. 13 to 16 and 20 only show the electric wire to which installation will be performed.

[0047] First, the cable W is unwound from the reeling device 3, and its tip is attached to the first bird prevention device 1. Then, the reeling device 3 is placed on the electric wire C. That is, the guide portion 87 of the reeling device 3 is placed on the electric wire C. Next, as shown in FIG. 13, the first bird prevention device 1 is fixed to the electric wire C upstream of the reeling device 3.

[0048] Next, as shown in FIG. 14, the clamping tool 100 is engaged with any of the mounting parts 70, 80 of the reeling tool 3, and the clamping tool 100 is moved downstream. As a result, the reeling tool 3 slides downstream on the electric wire C, and the rope W is unwound from the reeling tool 3. At this time, the reeling tool 3 is moved 2 m or more away from the first bird pest prevention tool 1. Next, the second bird pest prevention tool 2 is prepared, and as shown in FIG. 15, the second bird pest prevention tool 2 with the second clamping member 60 in the open state is lifted upward by the rod-shaped member 5, while the unwound rope W is placed on any of the claws 26, 27. Then, in this state, the second bird pest prevention tool 2 is attached to the electric wire C upstream of the reeling tool 3. Following this, as shown in FIG. 16, in the second bird pest prevention tool 2, the second clamping member 60 is closed while the rope W is placed on the claws 26, 27. As a result, the cord W is attached to the second bird-pest prevention device 2. Thereafter, the above-mentioned process of sliding the reel device 3 and attaching the second bird-pest prevention device 2 is repeated.

[0049] As described above, the wire B is provided on the electric wire C, and this may become an obstacle to the sliding of the reeling tool 3 during installation. In this case, installation is performed as follows. First, as shown in FIG. 17, the reeling tool 3 is placed near the upstream side of the wire B. Next, as shown in FIG. 18, the tip of the clamping tool 100 is operated so that it passes above the wire B from the upstream side of the wire B, and the tip of the clamping tool 100 is engaged with one of the mounting parts 70, 80 of the reeling tool 3. Next, as shown in FIG. 19, the reeling tool 3 is lifted from the electric wire C by the clamping tool 100, passed above the wire B toward the downstream side, and then the reeling tool 3 is placed on the electric wire C on the downstream side of the wire B. By this operation, the reeling tool 3 can be moved on the electric wire C while avoiding the wire B that becomes an obstacle.

[0050] As the installation proceeds in this manner, as shown in Fig. 20, the first bird pest prevention device 1 is attached to the electric wire C as the final bird pest prevention device, and then the cord W is attached. Finally, the cord W extending downstream of the first bird pest prevention device 1 is cut, and the installation is completed.

[0051] <3. Features> As described above, according to this embodiment, the following effects can be obtained. (1) According to the above installation method, the bird prevention devices 1, 2 are attached to the electric wire, and while the rope W is being reeled out using the reeling device 3, the bird prevention devices 1, 2 attached to the electric wire C are attached to the reeled out rope W. This operation is repeated, and the installation is therefore easier than with conventional techniques. Furthermore, although there is a risk of electric shock when bridging the electric wire C and the worker (or the worker's bucket) via the rope W, using the reeling device 3 as described above prevents this from happening, as the worker does not directly touch the rope W.

[0052] (2) Each bird pest prevention device 1, 2 is provided with the first and second clamping members 20, 30 as a mechanism for attaching the rope W. The second clamping member 30 is provided with an extension portion 38 above the engaging claw 32, and the second clamping member 30 is moved to the closed position by pressing the extension portion 38 toward the first clamping member 20 with the clamping tool 100. Here, the vicinity of the engaging claw 32 can be pressed with the clamping tool 100, but since the extension portion 38 is disposed above the engaging claw 32, that is, at a position farther away from the shaft portion 22, pressing the extension portion 38 can rotate the second clamping member 30 with a stronger force. Therefore, the engaging claw 32 can be engaged with the engaging hole 23 with a stronger force. In particular, since the extension portion 38 contacts the position corresponding to the hooking portion 25, a force can be efficiently applied to the hooking portion 25 and the extension portion 38. Therefore, the workability can be improved.

[0053] (3) As shown in Fig. 6(b), when the second clamping member 30 is in the closed position, the tip of the engaging portion 25 is configured to protrude beyond the tip of the engaging claw 32. This makes it possible to prevent the engaging claw 32 from interfering with the clamping tool that comes into contact with the engaging portion 25, allowing the work to be performed efficiently.

[0054] (4) In the reel device 3, a gap is formed between the two mounting portions 70, 80, and the electric wire C is guided to the guide portion 87 through this gap as a guide path, which has the advantage of making it easy to position the electric wire C in the guide portion 87.

[0055] (5) In this embodiment, the first bird pest prevention device 1 is attached to the upstream and downstream sides of the construction area. This is because the first bird pest prevention device 1 can firmly fix the electric wire C by the electric wire support part 15, thereby preventing the bird pest prevention device from shifting in the construction area.

[0056] (6) Furthermore, if the length of the rod-shaped tool 5 and the clamping tool 100 is equal to or longer than the length (60 cm) specified by regulations, the worker can work at a distance of 60 cm or more from the electric wire, eliminating the need for insulating equipment such as insulating gloves and allowing the worker to work safely.

[0057] <4. Modifications> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention. In addition, the following modified examples can be appropriately combined.

[0058] <4-1> In the above embodiment, the first bird pest prevention device 1 is attached to both ends of the construction area of ​​the electric wire C, and the second bird pest prevention device 2 is attached between them, but this is not limited to this, and either of the bird pest prevention devices 1 and 2 can be attached. For example, construction can be performed using only the first bird pest prevention device 1. In the above embodiment, the first bird pest prevention device 1 is used as the first bird pest prevention device from the start of construction, and the second bird pest prevention device 2 is used as the second bird pest prevention device, but for example, if two first bird pest prevention devices 1 and five second bird pest prevention devices 2 are used, n in the present invention becomes 7, and the second bird pest prevention device 2 installed becomes a bird pest prevention device with k=2.

[0059] The first and second bird pest prevention devices 1 and 2 are examples of bird pest prevention devices. The bird pest prevention device is not particularly limited as long as it is provided with at least an electric wire attachment part that can be attached to an electric wire C and a clamping member that can be attached to a cord W.

[0060] <4-2> The above-mentioned configuration of the reel device 3 is one example, and various modifications are possible. For example, the number of attachment parts may be one, and the shape may be other than a frame shape as long as the long tool 5,100 can be hooked. And, as long as at least a roll on which the cable W is wound, at least one attachment part on which the long tool can be hooked, and a guide part that moves on the electric wire are provided, other configurations are not particularly limited. [Explanation of symbols]

[0061] 1 1st bird damage prevention device 2 Second bird damage prevention device 3 Reel equipment 23 Engagement hole (engaged part) 25 Engagement part (protruding part) 32 Engagement claw (engagement part) 38 Extension

Claims

1. n (n is a natural number) bird damage prevention devices each including an electric wire attachment portion to be attached to an overhead electric wire and a grip portion provided above the electric wire attachment portion and to which a bird damage prevention cable is attached; Long tools and a reeling device including a roll on which the cable is wound, a guide portion movable along the overhead electric wire, and an attachment portion engageable with the long tool; A first step of preparing a second step of attaching the cable unwound from the roll of the reel device to a gripping portion of the kth bird pest prevention device (1≦k<n) and attaching the kth bird pest prevention device to the overhead wire; A third step of unwinding the cable from the roll by moving the reel tool away from the kth bird pest prevention tool in a construction direction with the guide portion of the reel tool placed on the overhead electric wire; A fourth step of attaching the (k+1)th bird pest prevention device to the overhead electric wire at a position spaced apart from the kth bird pest prevention device in the installation direction, and attaching the cable unwound from the roll to the gripping portion of the (k+1)th bird pest prevention device; Equipped with The method for installing a bird pest prevention device comprises repeating the second step to the fourth step a predetermined number of times not greater than n.

2. 2. The bird pest prevention device installation method of claim 1, wherein, when an obstacle is provided on the overhead electric line, in the third step, the reel device is lifted upward from the overhead electric line by the long tool, and after climbing over the obstacle in the installation direction, the reel device is placed on the overhead electric line.

3. A construction kit for use in the construction method of the bird pest prevention device according to claim 1 or 2, The n bird pest prevention devices; The reel device, Equipped with an installation kit.

4. A bird pest prevention device used in the bird pest prevention device installation method according to claim 1 or 2, The electric wire attachment portion; The gripping portion, Equipped with The gripping portion is a first clamping member extending upward from the electric wire attachment portion; A second clamping member configured to be spaced apart from the first clamping member and to clamp the cable between the first clamping member and the second clamping member; Equipped with The second clamping member is An engagement portion extending toward the first clamping member; an extension portion extending upward from a vicinity of a base end of the engagement portion; Equipped with The first clamping member is an engaged portion with which the engaging portion of the second clamping member can be engaged; a protruding portion provided above the engaged portion and protruding from a surface opposite to the second clamping member; Equipped with This bird pest prevention device is configured so that, when the engaging portion engages with the engaged portion, the protruding portion is positioned at a position opposite the extending portion.

5. The engaged portion is formed by a through hole, When the engaging portion engages with the engaged portion, a part of the engaging portion passes through the through hole and protrudes from a surface of the first clamping member opposite to the second clamping member, The bird pest prevention device according to claim 4, wherein when the engaging portion protrudes from the opposite surface through the through hole, the tip of the engaging portion is located closer to the opposite surface than the tip of the protruding portion.

6. A reel tool used in the method for installing the bird pest prevention device according to claim 1 or 2, The roll; The guide portion, At least one of the mounting portions; Equipped with A reel device, wherein a guide path for the overhead electric wire leading to the guide portion is formed along the mounting portion.

7. The pair of mounting portions are arranged to be aligned horizontally at a predetermined interval, The reel device according to claim 6 , wherein the guide path is formed between the pair of mounting portions.

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