JP2021013367A - Bird damage prevention tool - Google Patents

Abstract

To provide a bird damage prevention tool which can allow tightening an electric wire at a normal position even when a bird damage prevention tool is fitted in a state where the electric wire cannot be fixed.SOLUTION: There is provided a bird damage prevention tool comprising: an electric wire fitting part 1 which is fitted to an electric wire; and a separated part 2 provided on the electric wire fitting part in a protruded state. The bird damage prevention tools are fitted through the electric wire fitting part along a longitudinal direction of the electric wire at an interval, and between the separated parts, a wire is installed for preventing coming flying of birds. The electric wire fitting part comprises: a reception part 6 for holding from one side, the electric wire; and a tightening part 7 for pressing from the other side to the reception part side, the electric wire, and pressing and holding the electric wire between the same and the reception part: a hollow part which is provided on one or both of the reception part and the tightening part, and to which the electric wire is engaged along the longitudinal direction of the electric wire; and a slope part inclined to the hollow part.SELECTED DRAWING: Figure 3

Description

The present invention relates to a bird damage prevention device that prevents birds from flying or nesting by attaching to an electric wire.

Birds that coexisted in the human living area, such as pigeons and crows, stayed on the electric wires, causing damage to neighboring residents due to dung and crying. Moreover, in a serious case, the surface of the electric wire may be damaged by the adhesion of dung, the beak of a bird or the toenail, and the related equipment may be damaged. Therefore, in Patent Document 1, a plurality of birds are attached along the electric wires erected between the utility poles, and a thin wire is attached above the electric wires between the bird damage prevention devices to prevent the birds from stopping on the electric wires. Harm prevention equipment is disclosed.

Prior art

Patent documents

Japanese Patent No. 4740911

However, the bird damage prevention device of Patent Document 1 has the following problems.

The bird damage prevention tool is attached by pressing the tightening part of the bird damage prevention tool against the electric wire by rotating the nut part using an indirect hot-line tool. At this time, the electric wire is in the center of the tightening part. It must be tightened so that it fits into the V-shaped groove in the center of the receiving part. However, due to the structure of Patent Document 1, since the tightening portion has a flat surface, when a thin electric wire having a diameter of about 5 mm is tightened, both the tightening portion and the receiving portion may be tightened on the flat surface. If an impact is applied to the bird damage prevention device body, the electric wire may shift from the flat surface to the central V-shaped groove. At this time, since there is a sufficient gap in the central V-shaped groove of both the tightening part and the receiving part, the bird damage prevention device main body is not fixed to the electric wire, and the bird damage prevention tool main body is centered on the electric wire. It will rotate freely.

The present invention has been made in view of the above problems, and provides a bird damage prevention device that can perform tightening work without worrying about the position of the electric wire when attaching the bird damage prevention device to the electric wire.

Such an object is achieved by the following invention.

(1) An electric wire attachment portion to be attached to an electric wire and a separation portion protruding from the electric wire attachment portion are provided.
The electric wire mounting portion includes a receiving portion that holds the electric wire from one side, and a tightening portion that presses the electric wire from the other side toward the receiving portion and holds the electric wire between the receiving portion.
A recess provided in one or both of the receiving portion and the tightening portion along the longitudinal direction of the electric wire and with which the electric wire engages.
A bird damage prevention device characterized by having a slope portion inclined toward the recess.

(2) The electric wire mounting portion includes a substrate having an opening for inserting the electric wire, and a lid portion that is rotatable with respect to the substrate and opens and closes the opening.
The bird damage prevention tool according to (1) above, wherein the slope portion is provided on the lid portion.

(3) A plurality of electric wires are attached at intervals along the longitudinal direction of the electric wire via the electric wire attachment portion, and a wire is erected between each of the separation portions to prevent the flying of birds. The bird damage prevention device described in (2).

According to the present invention, one or both of the receiving portion and the tightening portion are provided along the longitudinal direction of the electric wire, and the electric wire is provided with a recess for engaging the electric wire and a slope portion inclined toward the recess. At the time of tightening, the electric wire can be fitted into the recess by being guided by the slope portion at any position between the tightening portion and the receiving portion. Therefore, it is possible to eliminate mounting defects.

Further, according to the present invention, it has an opening for inserting an electric wire and a lid for opening and closing the opening, and has an opening for inserting an electric wire and a lid for opening and closing the opening, and has a slope portion. Is provided on the lid, so when the lid is opened, the slope moves together with the lid. Therefore, for example, the opening width of the opening can be widened as compared with the case where the slope is provided on the main body.

It is a side view of a bird damage prevention tool. It shows the direction of the bird damage prevention device. It is a perspective view of a bird damage prevention tool. It is a side view when the lid part of a bird damage prevention tool is opened. It is a perspective view when the lid part of a bird damage prevention tool is opened. It is a perspective view of the lid alone. It is an enlarged sectional view of the engaging part of a bird damage prevention tool. It is a side view which shows an example of the installation work of a bird damage prevention tool. It is a side view which shows an example of the installation work of a bird damage prevention tool. It is a perspective view which shows the intermediate stage of the installation work of a bird damage prevention tool. It is a front view and a side view of a conventional bird damage prevention tool. It is a side view which shows an example of the attachment work of the conventional bird damage prevention tool. It is a perspective view which shows the intermediate stage of the installation work of the conventional bird damage prevention tool. It is a side view comparing the case where the slope portion is provided in the main body and the case where the slope portion is provided in the lid portion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its applications or its uses.

As shown in FIG. 1, the bird damage prevention tool according to this implementation is mainly used to hold the side view substantially U-shaped electric wire attachment portion 1 detachably attached to the electric wire D and the line material (wire). It is composed of a separation portion 2 projecting from the electric wire attachment portion 1 and a grip portion 9 for holding a bird damage prevention tool by an indirect live-line tool. In the following, the front and back are as shown in FIG. The top and bottom are the top and bottom in FIG.

The separation portion 2 is provided with two pairs of a line material receiving portion 2a and a line material holding portion 2b, which are recesses opened on the front side, with a vertical interval, and the line material holding portion 2b is an opening of the line material receiving portion 2a. The line material inserted into the line material receiving portion 2a is held by engaging with. The line material holding portion 2b located on the lower side is not shown for convenience of explanation.

A plurality of these bird damage prevention tools are attached via the electric wire attachment portion 1 at intervals along the longitudinal direction of the electric wire D, and the line material is fixed to the line material receiving portion 2a of the separation portion 2 of each bird damage prevention tool. As a result, a line material is erected between the separation portions 2 of each bird damage prevention device for use. The line material is not particularly limited, but in the present embodiment, a material in which fibers are bundled and a resin coating is applied to the surface is used, and a material having insulation property, tensile tension, and shear strength is used.

The grip portion 9 is a substantially flat plate-shaped hanging piece that is gripped when performing the wire attachment work of the bird damage prevention tool, and the operator grips the grip portion 9 with an indirect live-line tool to perform the work. The grip portion 9 is provided at the lower part of the bird damage prevention device so as to be substantially linear with the separation portion 2.

The electric wire mounting portion 1 is provided so as to be inclined so that the lower portion thereof is located on the front side of the grip portion 9 with respect to the separation portion 2 and the grip portion 9 which are arranged substantially linearly. Further, as shown in FIG. 5, the electric wire mounting portion 1 has a substrate 15 having an opening 1a opened on the front side for inserting the electric wire D and a shaft portion 1b provided substantially horizontally at the upper end of the opening 1a. A substantially flat plate-shaped lid 3 that is rotatably supported by the shaft portion 1b with respect to the substrate 15 and can be opened and closed with respect to the opening 1a, and the lid portion 3 is closed with the opening 1a closed. It is provided with an engaging portion 4 for fixing.

As shown in FIG. 6, the lid portion 3 is located on a portion on the base end side thereof, and is provided on a bearing portion 3a rotatably supported by a shaft portion 1b of the electric wire mounting portion 1 and a portion on the tip end side thereof. It has a hole-shaped engaged portion 5 that is located and engages with the engaging portion 4. Further, as shown in FIGS. 4 and 5, the lid portion 3 can be opened to an angle that does not hinder the insertion of the electric wire D into the opening portion 1a, and the frictional force between the shaft portion 1b and the bearing portion 3a. As a result, the lid portion 3 does not rotate under the force of gravity due to the weight of the lid portion 3, and the open state can be maintained. Further, in the closed state of the lid portion 3, the engaging portion 4 and the engaged portion 5 provided on the lid portion 3 engage with each other in a state where the lid portion 3 closes the opening 1a, whereby from FIG. The closed state of the lid 3 is maintained as shown in FIG.

As shown in FIGS. 1 to 5 and 7 to 10, the electric wire mounting portion 1 has a receiving portion 6 that holds the upper side and slightly rearward of the electric wire D inserted into the opening 1a, and the electric wire D is slightly forward and lower. A tightening portion 7 that presses from the opposite side to the receiving portion 6 is provided, and the electric wire is pressed and held by sandwiching the electric wire D between the receiving portion 6 and the tightening portion 7. The tightening portion 7 is provided with a mechanism that moves in the direction of approaching the receiving portion 6 or in the direction away from the receiving portion 6 by rotating the nut portion 8, and the nut portion 8 is provided below the tightening portion 7. The lower end is inclined so as to be located in front of the upper end.

Further, the receiving portion 6 is provided along the longitudinal direction of the electric wire D, and is provided with a V-shaped groove 6a (recess) with which the electric wire D is engaged. Further, the contact surface of the receiving portion 6 with the electric wire D, particularly the inner surface of the groove 6a, is provided with a plurality of irregularities for the purpose of increasing the holding force of the electric wire D. Further, the contact surface of the tightening portion 7 with the electric wire D is V-shaped so that the electric wire D does not move to the front side or the rear side of the receiving portion 6 when the tightening portion 7 moves by the rotation of the nut portion 8. It has become. That is, similarly to the receiving portion 6, the tightening portion 7 is also provided with a V-shaped groove 7a (recess) provided along the longitudinal direction of the electric wire D and with which the electric wire D is engaged.

After inserting the electric wire D into the opening 1a of the electric wire mounting portion 1 in the state of FIGS. 4 and 5, the upper side of the electric wire D is held by the receiving portion 6, and the lower side of the electric wire D is pressed and held by the tightening portion 7. By rotating the nut portion 8 until the position, that is, the state shown in FIG. 1 is reached and moving the tightening portion 7 in the direction of the receiving portion 6, an electric wire is provided between the groove 6a of the receiving portion 6 and the groove 7a of the tightening portion 7. D is held, and the electric wire attachment portion 1 is fixed to the electric wire D so as not to rotate and move. The above-mentioned "fixed so as not to rotate and move" means, for example, that the electric wire mounting portion 1 is fixed to the electric wire D with a force that does not rotate and move with a normal force that can be applied in a used state. Means that.

Further, the electric wire mounting portion 1 is provided with a first slope portion 10 (slope portion) and a second slope portion 11 (slope portion) for guiding the electric wire D inserted in the opening 1a between the grooves 6a and 7a. Has been done. The second slope portion 11 is provided on the inner surface of the lid portion 3, is located in the opening 1a with the lid portion 3 closed, and is further located on the front side of the groove 6a. Such a second slope portion 11 is inclined toward the groove 6a. On the other hand, the first slope portion 10 is provided on the substrate 15, is located in the opening 1a, and is further located on the rear side of the groove 6a. Such a first slope portion 10 is inclined toward the groove 6a. That is, the first slope portion 10 and the second slope portion 11 are provided with the groove 6a in between, and both are inclined toward the groove 6a. With such an arrangement, the position of the electric wire D in the opening 1a is not affected, that is, even if the electric wire D is located on the front side of the groove 6a, it is located on the rear side on the contrary. However, the electric wire D can be guided between the groove 6a and the groove 7a.

The engaging portion 4 is provided on the lower side of the tightening portion 7 as shown in FIG. Further, the engaging portion 4 has an engaging portion main body 4b fixed above the nut portion 8 and an engaging claw 4a provided so as to extend forward from the upper surface of the engaging portion main body 4b. doing. Further, a protrusion 4c is provided on the upper surface of the engaging claw 4a, and a step portion 4d is provided on the rear side of the protrusion 4c.

The engaged portion 5 of the lid portion 3 is a through hole capable of snap-fit engagement with the engaging claw 4a. When the lid portion 3 is rotated in the closed state, the engaging claw 4a and the engaging portion main body 4b are first inserted into the engaged portion 5. Further, by pushing the lid portion 3 from the front, the engaged portion 5 is inserted while pressing the engaging claw 4a from above at the upper end portion thereof and bending the engaging claw 4a. Then, when the upper end portion of the engaged portion 5 exceeds the protruding portion 4c and is inserted until it reaches the position of the step portion 4d, the protruding portion 4c engages with the upper end portion of the engaged portion 5 and the engaged portion. 4 and the engaged portion 5 are snap-fit engaged. In the closed state of the lid portion 3, the engaging claw 4a snap-fits and engages with the engaged portion 5, so that the closed state of the lid portion 3 is maintained.

Further, in a state where the engaging claw 4a and the engaged portion 5 are engaged and the lid portion 3 is held in the closed state, the tip portion of the engaging claw 4a is forward from the engaged portion 5 of the lid portion 3. It protrudes into. Since the tip of the engaging claw 4a protrudes forward from the engaged portion 5, the tip of the engaging claw 4a can be operated from the outside, and the tip of the engaging claw 4a is pushed down. This makes it possible to disengage the snap-fit engagement between the engaging claw 4a and the engaged portion 5.

Next, with reference to FIG. 8, a procedure for attaching the bird damage prevention device to the electric wire D, specifically, how to prevent pinching of the electric wire other than the normal position will be described. Each bird damage prevention device is attached to the electric wire D in a state where the line material is attached to the separation portion 2 in advance, but the line material is not shown in each of the following figures. Further, although each work is carried out by the worker using the indirect live-line tool from the bucket of the aerial work platform, the indirect live-line tool is not shown in FIG.

First, the lid portion 3 is opened to the extent that it does not interfere with the insertion of the electric wire D into the opening 1a, and the tightening portion 7 is positioned at a position where the opening diameter of the opening 1a is larger than the diameter of the electric wire D. Prepare a bird damage prevention device. Then, the grip portion 9 of the bird damage prevention tool is gripped with an indirect live-line tool, and as shown in FIG. 8A, the electric wire D is brought close to the electric wire D from the front of the bird damage prevention tool, and the electric wire D is inserted into the opening 1a. Next, as shown in FIG. 8B, the lid 3 of the bird damage prevention tool is closed to bring it into a closed state, and the inner surface of the closed lid 3 is brought into contact with the electric wire D.

After that, while gripping the gripping portion 9 with an indirect live-line tool, the nut portion 8 is rotated by using another indirect live-line tool so that the separation portion 2 of the bird damage prevention tool is substantially vertical. Is pushed upward by the front side 7b of the flat portion of the tightening portion 7, and as shown in FIGS. 8 (c) and 8 (d), V-shaped grooves 6a and 7a are formed along the R shape of the opposite second slope portion 11. Move between. Finally, the electric wires D are pressed and held, that is, sandwiched between the receiving portion 6 and the tightening portion 7 in a state of being engaged with the V-shaped grooves 6a and 7a, as shown in FIG. 8 (e). The electric wire mounting portion 1 is fixed to the electric wire D.

Next, a procedure in the case where the electric wire is brought into contact with the wall on the back side of the opening 1a for mounting will be described with reference to FIG. First, as in the procedure of FIG. 8, as shown in FIGS. 9A and 9B, the electric wire D is inserted into the opening 1a and brought into contact with the wall on the back side of the opening 1a. After that, when the tightening portion 7 is moved upward, the electric wire D is pushed to the back side 7c of the flat portion, and as shown in FIG. 9C, a V shape is formed along the R shape of the opposite first slope portion 10. It moves between the shaped grooves 6a and 7a. Finally, the electric wire D is pressed and held, that is, sandwiched between the receiving portion 6 and the tightening portion 7 in a state of being engaged with the V-shaped grooves 6a and 7a, as shown in FIG. 9D. The electric wire mounting portion 1 is fixed to the electric wire D.

Next, the action and effect of the bird damage prevention device of the present invention will be described in comparison with the conventional bird damage prevention device. In the conventional bird damage prevention device, as shown in FIG. 11, both the receiving portion 6'and the tightening portion 7'have flat surfaces 6b', 6c', 7b', and 7c'. Therefore, as shown in FIG. 12, there is a risk that the bird damage prevention device may be fixed to the electric wire D with the electric wire D sandwiched between the upper and lower flat portions 6b'and 7b'. In this case, when an impact is applied to the bird damage prevention device main body, the electric wire D may shift from between the flat surfaces 6b'and 7b'and move to the central V-shaped grooves 6a'and 7a'. At this time, since there is a larger gap between the V-shaped grooves 6a'and 7a' than between the flat surfaces 6b'and 7b', the bird damage prevention device main body and the electric wire D are not fixed to each other. , The main body of the bird damage prevention device can rotate around the electric wire. That is, the fixing to the electric wire D is released. The same applies when the electric wire D is sandwiched between the upper and lower flat portions 6c'and 7c'.

In order to avoid such a problem, the operator has to perform the tightening work while always keeping the electric wire D between the groove 6a'and the groove 7a', which is difficult to work. Further, when the operator performs the tightening work using the nut portion 8, the bird damage prevention tool main body rotates due to the rotational operation of tightening the nut portion 8. Therefore, as shown in FIG. 13, since the electric wire D rotates diagonally in the bird damage prevention tool main body, it is necessary to suppress the electric wire D or the bird damage prevention tool from rotating.

On the other hand, in the bird damage prevention tool of the present invention, the first slope portion 10 (slope portion) and the second slope portion 11 (slope portion) are provided, so that the operator does not have to pay attention to the position of the electric wire. , The bird damage prevention device can be fixed to the electric wire D at the normal position. Specifically, since the electric wire D is naturally guided between the groove 6a and the groove 7a by the first slope portion 10 and the second slope portion 11 during the fixing work, the electric wire D and the groove 6a do not need to be paid attention to the electric wire position. The electric wire mounting portion 1 can be fixed to the electric wire D with the electric wire D accommodated between the grooves 7a. Further, when the operator performs the tightening work using the nut portion 8, the electric wire D rotates diagonally in the bird damage prevention tool as shown in FIG. 10, but even in this case, the first slope portion 10 The electric wire D is guided to a regular position along the R of the second slope portion 11, and the electric wire mounting portion 1 can be fixed to the electric wire D in a state where the electric wire D is housed between the grooves 6a and 7a.

Further, by providing the second slope portion 11 on the back side of the lid portion 3 as shown in FIG. 14 (b), for example, when the second slope portion 11 is provided on the main body as shown in FIG. 14 (a). As compared with the above, the opening width of the opening 14 when the lid 3 is opened can be secured larger. Therefore, it becomes easier to insert the electric wire D into the opening 14.

The present invention is not limited to the above embodiment, and can be deformed without departing from the gist of the present invention, and the shape, size, thickness, etc. of each part of the bird damage prevention tool can be appropriately changed. For example, the shape of the bird damage prevention device may be such that the axes of the separation portion and the nut portion are positioned in a straight line while being attached to the electric wire. In addition, the positional relationship between the receiving part and the tightening part does not need to be that the receiving part is on the top and the tightening part is on the bottom, and even if it is upside down, it is possible to hold the electric wire by sandwiching it from the front and back or diagonally. Is. Furthermore, the method of fixing the line material to the separation part may be any method such as screwing that can fix the line material at an arbitrary position of the separation part, and a mechanism for bundling and holding the line material in a bird damage prevention tool. May be provided.

Further, in the above embodiment, the bird damage prevention device has a groove 6a provided in the receiving portion 6 and a groove 7a provided in the tightening portion 7, but the present invention is not limited to this, and the groove 6a and the groove 7a Either one may be omitted. Further, in the above embodiment, the bird damage prevention device has the first slope portion 10 and the second slope portion 11, but is not limited to this, and either one of the first slope portion 10 and the second slope portion 11 is used. It may be omitted. Further, for example, the second slope portion 11 may be provided so as to straddle the lid portion 3 and the base 15. That is, a part of the second slope portion 11 may be provided on the lid portion 3 and the rest may be provided on the substrate 15.

D Wire 1 Wire mounting part 1a Opening 1a'Conventional product opening 1b Shaft 1b' Conventional product shaft 1c Opening wall surface 2 Separation 2'Conventional product separation 3 Lid 3'Conventional product lid 4 Engagement part 4'engagement part of the conventional product 5 Engagement part 6 Receiving part in the product of the present invention 6'Receiving part of the conventional product 6a V-shaped groove in the center of the receiving part in the present invention 6a'Center of the receiving part in the conventional product V-shaped groove 6b'Previous product upper surface flat part front side 6c' Conventional product upper surface flat part back side 7 Tightening part 7'Conventional product tightening part 7a V-shaped groove 7a in the center of the tightening part in the present invention V-shaped groove 7b in the center of the tightening part in the product 7b on the front side of the bottom flat part in the present invention 7c on the front side of the bottom flat part of the conventional product 7c on the back side of the bottom flat part in the product of the present invention 8'Conventional product nut 9 Grip 9'Conventional grip 10 First slope 11 Second slope 14 Maximum opening width in the present invention 14'Maximum opening when the slope of the present invention is provided in the main body. Width 15 substrate

Claims (3)

It is provided with an electric wire attachment portion attached to an electric wire and a separation portion protruding from the electric wire attachment portion.
The electric wire mounting portion includes a receiving portion that holds the electric wire from one side, and a tightening portion that presses the electric wire from the other side toward the receiving portion and holds the electric wire between the receiving portion.
A recess provided in one or both of the receiving portion and the tightening portion along the longitudinal direction of the electric wire and with which the electric wire engages.
A bird damage prevention device characterized by having a slope portion inclined toward the recess. The electric wire mounting portion includes a substrate having an opening for inserting the electric wire, and a lid portion that is rotatable with respect to the substrate and opens and closes the opening.
The bird damage prevention device according to claim 1, wherein the slope portion is provided on the lid portion. The first or second claim, wherein a plurality of electric wires are attached at intervals along the longitudinal direction of the electric wire via the electric wire attachment portion, and a wire is erected between the respective separation portions to prevent birds from flying. Bird damage prevention device.