JP7286157B2 - Bird damage prevention device - Google Patents

Description

FIELD OF THE DISCLOSURE The present disclosure relates to a bird deterrent that is attached to an overhead line and hangs a repellent wire over the overhead line.

In order to prevent birds from flying over the overhead wire, a repellent wire for bird damage prevention is hung above the overhead wire. A bird damage preventer is used to hang the repellent wire above the overhead line, and a plurality of bird damage preventers are installed on the overhead line at predetermined intervals along the longitudinal direction of the overhead line. The bird arrester includes a portion for attaching to the overhead wire and a portion for supporting the repellent wire.

JP 2013-141452 A

Overhead lines are placed high above the ground. Therefore, a worker who installs a bird damage prevention device moves directly under the overhead wire using, for example, an aerial work platform. However, in the environment around the overhead wires and in the case of so-called vertical pulling, in which the overhead wires are arranged vertically, it may be difficult to move directly under the overhead wires and work. In addition, when a bar-shaped device is used to attach and detach the bird damage prevention device, another overhead wire may interfere with the device operation.

An object of the present disclosure is to propose a technique for improving the workability of installing a bird damage prevention device.

One aspect of the present disclosure is a bird deterrent that is attached to an overhead wire and used to extend a repellent wire along the overhead wire. This bird damage preventer has an attachment portion, an extension portion, and a support portion. The attachment portion is configured to be attachable to an overhead line. The extending portion is provided on the mounting portion. The support part is provided on the extension part and is configured to be able to support the avoidance line. The mounting portion includes an operation member configured to be rotatable, and when the operation member is rotatably operated, transition is made between a state in which the mounting portion cannot be attached to and detached from the overhead wire and a state in which the attachment portion can be attached and detached. configured as possible. When the bird damage preventer is projected onto a plane normal to which is the length direction of the overhead wire to which the mounting portion is attached, the rotational axis of the operation member is the position at which the repelling line is supported by the support portion. A positional relationship is established in which a straight line connecting the position of the avoidance line and the position where the overhead wire is held by the mounting portion intersects.

With such a configuration, when the bird damage prevention tool is attached to the overhead wire so that the evasive wire is positioned directly above the overhead wire, the rotating shaft of the operating member can be directed in a direction other than directly below the overhead wire. Become. Therefore, the operation member can be operated more easily from the front side of the overhead wire, so that workability of installing the bird damage prevention device can be improved. The crossing positional relationship here means that a straight line passing through the rotation axis and a straight line passing through the position of the avoidance line and the position of the overhead line intersect. Further, the intersecting positional relationship here may be, for example, the case where the straight line and the rotation axis of the operation member have an angle in the range of 10° to 90°.

In the bird damage preventer described above, the extending portion may be configured to be movable between the first position and the second position relative to the mounting portion. When the extension is at the first position, the angle between the rotation axis of the operation member and the straight line may be smaller than when the extension is at the second position. With such a configuration, by changing the position of the extending portion, the angle of the rotation shaft of the operation member can be adjusted to a position where operation can be easily performed in the environment of the overhead wire to which the bird damage prevention device is attached. can be done.

In the bird damage preventer described above, the bird damage preventer is configured such that the center of gravity of the bird damage preventer, the center position of the overhead wire held by the mounting portion, and the avoidance line position are arranged in a straight line. may have been With such a configuration, the repellent wire can be easily arranged right above the overhead wire during the installation work of the bird damage prevention device, and workability can be improved.

In the bird damage prevention device described above, the operation member may be configured to be movable between the first position and the second position relative to the mounting portion. When the operating member is at the first position, the angle between the rotation axis of the operating member and the straight line may be smaller than when the operating member is at the second position. With such a configuration, it is possible to change the angle of the rotation shaft of the operation member to a position where the operation is easy in the environment of the overhead wire to which the bird damage prevention device is attached.

1A is a perspective view showing the bird damage prevention device of the first embodiment, FIG. 1A is a perspective view showing a state in which the moving part is moved downward, and FIG. 1B is a perspective view showing a state in which the moving part is moved upward. is. FIG. 2A is a side view of the bird damage preventer of the first embodiment, FIG. 2A is a side view when the extension is at the first position, and FIG. 2B is a side view when the extension is at the second position; It is a diagram. 3A-3C are schematic perspective views illustrating the angle adjusting mechanism of the first embodiment. It is a side view when the bird damage prevention device of 1st Embodiment is attached to an overhead wire. It is a side view which shows the bird damage prevention device of 2nd Embodiment. Fig. 6A is a side view showing the bird damage preventer of the third embodiment, Fig. 6A is a side view when the operating member is at the first position, and Fig. 6B is a side view when the operating member is at the second position; is. It is a typical perspective view which shows the modification of an angle adjustment mechanism.

Embodiments of the present disclosure will be described below with reference to the drawings.
[1. embodiment]
[1-1. Overall configuration of bird damage prevention device]
The bird damage prevention device 1 of the present embodiment is a device that is used by being attached to an overhead wire, and a repellent wire is hung along the overhead wire. The avoidance line here is a line for bird damage prevention provided above the overhead wire along the overhead wire. As shown in FIGS. 1A-1B, the bird damage preventer 1 includes a mounting portion 11 and an extension portion 13. As shown in FIGS.

In the following, for convenience of explanation, the structure will be described using up, down, left, right, and front and rear directions. However, the present disclosure is not limited to the above directions in terms of usage and the like. The left-right direction is the length direction of the overhead wire when attached to the overhead wire. In addition, since the avoidance wire exerts a bird damage prevention function by being arranged above the overhead wire, the avoidance wire is usually arranged so as to be positioned above the overhead wire.

[1-2. Mounting part]
The mounting portion 11 includes an accommodating portion 21 , a lid portion 23 , a moving portion 25 and an operating member 41 . The attachment portion 11 is configured to be attachable to the overhead wire 5 . By attaching the mounting portion 11 to the overhead wire 5, the bird damage prevention device 1 can be attached to the overhead wire.

The housing portion 21 has a substantially U-shaped shape. In other words, the accommodating portion 21 has a substantially annular shape with an open front. The overhead wire can be housed inside the housing portion 21 . The housing portion 21 includes a first wall portion 21a that covers the lower side of the overhead wire and a second wall portion 21b that covers the upper side of the overhead wire. In addition, the housing portion 21 includes a columnar connecting post 72 extending from above the second wall portion 21b.

The lid portion 23 is a substantially rectangular plate-like member, and one end in the longitudinal direction thereof is rotatably fixed to the front end portion of the second wall portion 21b as a fulcrum. The lid portion 23 is movable between a closed position that closes the front open portion of the housing portion 21 and forms an annular body together with the housing portion 21 and an open position that opens the front portion of the housing portion 21 .

A space inside the annular body formed by the housing portion 21 and the lid portion 23 in the closed position is an insertion space 27 into which an overhead wire can be inserted. When the lid portion 23 is at the open position, the overhead wire can be taken in and out of the insertion space 27. - 特許庁When the lid portion 23 is in the closed position, the overhead wire cannot be taken in and out of the insertion space 27. - 特許庁

A fixing hole 33 is provided on the other end side of the lid portion 23 in the longitudinal direction. A protrusion 31 provided at the front end of the first wall portion 21a can be inserted and fitted into the fixing hole 33 . Also, the lid portion 23 is formed such that one end side connected to the second wall portion 21b is wider than the other end side opposite to the one end side.

The moving part 25 is configured to be vertically movable inside the insertion space 27 . A lid fixing portion 35 is formed at the end portion of the moving portion 25 on the lid portion 23 side. As shown in FIG. 1A, when the moving part 25 is in the open position, which is a relatively low position, the space in the insertion space 27 into which the overhead wire can be inserted is widened, and the lid part 23 can be freely opened and closed. is. Also, as shown in FIG. 1B, when the moving part 25 is in the fixed position, which is a relatively high position, the space described above becomes narrow. In addition, the lid fixing portion 35 locks the wide portion of the lid portion 23 in the closed position to prevent the lid portion 23 from opening.

The operation member 41 is a portion for performing an operation to hold the overhead wire. The operation member 41 is a columnar member having a hexagonal cross section, and is configured to be rotatable around a vertical rotation shaft 41a below the first wall portion 21a.

The mounting portion 11 is provided with a protruding portion 43 that is disposed so as to penetrate the first wall portion 21a and has a length in the vertical direction. When the operation member 41 is rotated, the amount of projection of the projecting portion 43 from the first wall portion 21a increases or decreases depending on the direction of rotation. The moving portion 25 is connected to the upper end of the projecting portion 43 . Therefore, when the operation member 41 is rotated, the moving portion 25 moves vertically inside the insertion space 27 . An annular mounting disk 37 is provided on the upper surface of the first wall portion 21a so as to surround the projecting portion 43. As shown in FIG.

In the mounting portion 11 configured as described above, when the lid portion 23 is in the open position and the moving portion 25 is in the open position, the overhead wire is inserted into the insertion space 27 (the second wall portion 21b and the moving portion 25). ) and withdrawn from the insertion space 27 . With the overhead wire inserted into the insertion space 27, the lid portion 23 is closed and the operation member 41 is operated to move the moving portion 25 to the fixed position. An overhead wire is sandwiched between and the bird damage preventer 1 is fixed to the overhead wire. At this time, the lid portion 23 is locked to the housing portion 21 via the lid fixing portion 35 . Therefore, the overhead wire is prevented from slipping out of the insertion space 27 .

In other words, when the operation member 41 is rotated, the mounting portion 11 transitions between a state in which the mounting portion 11 cannot be attached to and detached from the overhead wire, and a state in which the mounting portion 11 can be attached and detached to and from the overhead wire. .

[1-3. extension part]
The extending portion 13 is provided on the mounting portion 11 . The extending portion 13 includes a pair of left and right side plates 51 . The side plates 51 are flat plates elongated in the vertical direction, are arranged side by side so as to face each other, and are connected at their upper end portions. The extending portion 13 has a support portion 15 and a holding hole 63 . Further, the mounting portion 11 and the extension portion 13 are connected so that the relative position of the extension portion 13 with respect to the mounting portion 11 can be changed, in other words, the extension angle of the extension portion 13 can be changed. It has a mechanism 71 .

<Configuration of support part>
A support portion 15 for supporting the avoidance wire is provided at a central portion in the vertical direction of the extension portion 13 at a position spaced apart from the overhead wire. The support portion 15 includes a fixture 53, a groove portion 55, avoidance line locking grooves 59a and 59b, and the like.

The fixture 53 is rotatably fixed to a rotating shaft 57 whose axial direction extends in the left-right direction. The rotating shaft 57 is provided inside the groove portion 55 . The groove portion 55 is a rectangular groove elongated in the vertical direction.

The fixture 53 is operated when fixing the avoidance line. The fixture 53 is fixed to the extending portion 13 when it is in a predetermined rotational position and in a folded position in which the main portion is accommodated inside the groove portion 55 . After arranging the avoidance lines so as to pass through the avoidance line engaging grooves 59a or the avoidance line engaging grooves 59b provided in each of the pair of side plates 51, the fixtures 53 are moved to an appropriate folding position, whereby the avoidance lines are arranged. is fixed to the bird damage prevention device 1.

<Configuration of holding hole>
A vertical plate 61 is arranged between the pair of left and right 51 and spreads vertically and horizontally at the upper end of the extension 13 . The vertical plate 61 is provided with a holding hole 63 that is a through hole. Although not shown, the holding hole 63 is configured to be able to insert a bundled repellent line and to hold the inserted repellent line.

<Configuration of Angle Adjusting Mechanism>
As shown in FIGS. 2A and 2B, the angle adjusting mechanism 71 is configured to be able to move the position of the extending portion 13 with respect to the mounting portion 11 . In the following description, regarding the positions of the mounting portion 11 and the extension portion 13, the bird damage preventer 1 is projected onto a plane whose normal direction is the length direction of the overhead wire 5 to which the mounting portion 11 is mounted. position.

When the extending portion 13 is at the first position shown in FIG. 2A, the rotating shaft 41 a of the operation member 41 is positioned between the avoidance line position 81 in the support portion 15 at which the avoidance line 3 is supported and the attachment portion 11 . It is positioned on a straight line 83 connecting the center position 82 of the overhead wire 5 to be held. That is, the rotating shaft 41a and the straight line 83 are parallel and have no angle. On the other hand, the rotation axis 41a intersects the straight line 83 when the extension 13 is at a second position different from the first position shown in FIG. 2B. The intersection here means that the straight line forming the rotation axis 41a and the straight line 83 intersect. In other words, the rotating shaft 41a does not mean a shaft member that exists as an object, but an axis that defines the rotational movement of the operating member 41. As shown in FIG. The first position and the second position are relative positions with respect to the mounting portion 11 .

A specific configuration of the angle adjusting mechanism 71 will be described with reference to FIGS. 3A to 3C. 3A to 3C are schematic diagrams of the angle adjustment mechanism 71 and its surroundings for explaining the configuration of the angle adjustment mechanism 71. FIG. Therefore, there are portions that do not strictly match the shapes of FIGS.

As shown in FIG. 3A, the angle adjustment mechanism 71 includes a connecting post 72, a rotating shaft 73, projections 74a and 74b provided on the mounting portion 11, and a round hole 75 and a square hole 76 provided on the extension portion 13. , provided.

The connecting post 72 is a columnar member extending from above the second wall portion 21b. The rotating shaft 73 is a cylinder that protrudes outward in the left-right direction from both left and right side surfaces of the connecting post 72 . The protrusions 74a and 74b are protrusions formed on both left and right side surfaces of the connecting post 72, which are tapered toward the tip, and are formed at positions separated from each other. The round hole 75 is a through hole formed in the side plate 51 and has a size such that the rotating shaft 73 can be inserted therein. The square hole 76 is a through hole formed in the side plate 51 and has a size that allows insertion of the protrusions 74a and 74b.

As shown in FIGS. 3B and 3C, with the rotary shaft 73 inserted into the round hole 75, the extension 13 can be rotationally displaced about the rotary shaft 73. As shown in FIGS. FIG. 3B shows the extending portion 13 at the first position, and the projection 74a is inserted into the square hole 76. FIG. FIG. 3C shows the extending portion 13 at the second position, and the projection 74b is inserted into the square hole 76. FIG. In this manner, the protrusions 74a and 74b and the square hole 76 can lock the extension 13 at either the first position or the second position.

[1-4. effect]
According to the embodiment detailed above, the following effects are obtained.
(1a) In the bird damage preventer 1 of the present embodiment, the bird damage preventer 1 is placed on the overhead wire 5 so that the repellent wire 3 is positioned right above the overhead wire by setting the extension portion 13 to the second position. 4, the rotational axis of the operating member 41 faces a direction other than directly below the overhead wire. Therefore, the operating member 41 can be operated more easily from the front side of the overhead wire, so that workability in mounting the bird damage preventer 1 can be improved. Here, the near side means the side of the operator when the overhead wire is arranged in front of the operator and in the left-right direction.

(1b) In the bird damage preventer 1, the position of the extension part 13 can be changed between the first position and the second position, and the position is easy to operate in the overhead line environment where the bird damage preventer 1 is installed. can be adjusted to The angle between the rotation axis 41a and the straight line 83 at the second position may be 10° or more. More preferably, it is 15° or more. Moreover, it is good also as 90 degrees or less.

[2. Second Embodiment]
[2-1. Differences from First Embodiment]
Since the basic configuration of the second embodiment is the same as that of the first embodiment, description of common configurations will be omitted, and differences will be mainly described. Note that the same reference numerals as in the first embodiment indicate the same configurations, and refer to the preceding description.

As shown in FIG. 5, the bird damage prevention device 101 of the present embodiment does not have a mechanism corresponding to the angle adjusting mechanism 71 of the first embodiment, and as a result, the extending portion 113 is cannot move against On the other hand, the extending portion 113 extends at an inclined angle so that the rotating shaft 41a intersects the straight line 83, similarly to the extending portion 13 at the second position shown in FIG. 2B described above. there is

The bird damage preventer 101 is configured such that the center of gravity position 121 of the bird damage preventer 101, the center position 82 of the overhead wire 5 held by the mounting portion 111, and the avoidance line position 81 are arranged in a straight line. ing. That is, the center-of-gravity position 121 is positioned on the straight line 83 .

[2-2. effect]
The bird damage prevention device 101 of this embodiment can achieve the same effect as the above (1a), and furthermore, has the following effect.

(2a) Since the bird damage preventer 101 has the center of gravity set as described above, the repellent wire can be easily arranged directly above the overhead wire when installing the bird damage preventer 101, thereby improving workability. can be planned. The exact position of the center of gravity 121 may deviate slightly from the straight line 83 as long as it is substantially aligned with the avoidance line position 81 and the central position 82 . The term "substantially" as used herein means that the extending portion 113 faces upward and the operation member 41 is separated from directly below the overhead wire 5 if no load or restriction is applied during the installation work.

[3. Third Embodiment]
[3-1. Differences from First Embodiment]
Since the basic configuration of the third embodiment is the same as that of the first embodiment, the description of the common configuration will be omitted, and the differences will be mainly described. Note that the same reference numerals as in the first embodiment indicate the same configurations, and refer to the preceding description.

The bird deterrent 201 of this embodiment shown in FIGS. 6A-6B further includes a universal joint 202 in addition to the features of the bird deterrent 1 of the first embodiment. The universal joint 202 allows the position of the operating member 241, in other words, the angle of the rotation axis in the rotating operation of the operating member 241 to be changed. The universal joint 202 may be, for example, a so-called ball joint.

The operating member 241 is configured to be movable to at least a first position shown in FIG. 6A and a second position shown in FIG. 6B. The first position and the second position of the operation member 241 are relative positions with respect to the mounting portion 211. When the operation member 241 is at the first position, the rotation axis 41a is parallel to the straight line 83 and has an angle of do not have. On the other hand, when the operation member 241 is at the second position, the rotation shaft 41a is in a positional relationship that intersects the straight line 83. As shown in FIG.

[3-2. effect]
The bird damage prevention device 201 of this embodiment can achieve the same effect as the above (1a), and furthermore, has the following effect.

(3a) Since the bird damage preventer 201 can change the angle of the operation member 241, the position of the operation member 241 can be changed to a position that facilitates operation in the overhead line environment where the bird damage preventer 201 is attached. can do.

[4. Other embodiments]
Although the embodiments of the present disclosure have been described above, the present disclosure is by no means limited to the above embodiments, and it goes without saying that various forms can be taken as long as they fall within the technical scope of the present disclosure.

(4a) The bird damage prevention device illustrated in each of the above embodiments is merely an example showing a specific embodiment. The specific structure of the part is not limited in any way, and various configurations can be made.

(4b) In the first embodiment, the angle adjusting mechanism 71 has a configuration in which the extending portion 13 is locked at two different positions with respect to the mounting portion 11 . However, the extending portion 13 may be configured to be locked at three or more different positions of the avoidance lines. Specifically, the number of projections may be 3 or more. Further, as shown in FIG. 7, the side plate 351 is formed with a locking portion 91 including a large number of grooves that engage with the projections, so that the inclination angle of the extending portion 313 with respect to the mounting portion 11 can be changed in multiple stages. may be configured to Alternatively, the projection may be provided on the extension portion side, and the groove engaging with the projection may be provided on the connecting post side of the mounting portion.

Further, in the first embodiment, the rotating shaft 41a is parallel to the straight line 83 when the extending portion 13 is at the first position. However, the first position is a position where the angle between the rotation axis 41a and the straight line 83 is smaller when the extension 13 is at the first position than when the extension 13 is at the second position. The rotation axis 41 a does not have to be parallel to the straight line 83 .

(4c) In the second embodiment, the center of gravity position 121 of the bird damage prevention device 101, the center position 82 of the overhead wire 5 held by the mounting portion 111, and the avoidance line position 81 are arranged in a straight line. exemplified. However, the position of the center of gravity does not have to be the position described above. Moreover, the bird damage prevention device 101 may be configured such that the center-of-gravity position 121 can be changed. For example, the weight may be detachable, or a position-changeable part may be provided in the entire bird damage prevention device 101 .

(4d) In the above-described third embodiment, the universal joint 202 exemplifies a configuration in which the inclination angle of the operation member 241 can be changed arbitrarily. However, the inclination angle of the operation member 241 may be configured to be changeable by a configuration other than the universal joint 202. FIG. Also, the bird damage prevention device 201 does not have to include the angle adjustment mechanism 71 .

Further, in the third embodiment, the rotating shaft 41a is parallel to the straight line 83 when the operating member 241 is at the first position. However, the first position is a position where the angle between the rotary shaft 41a and the straight line 83 is smaller when the operating member 241 is at the first position than when the operating member 241 is at the second position. Well, the rotation axis 41 a does not have to be parallel to the straight line 83 .

(4e) Each component of the present disclosure is conceptual and not limited to the above embodiments. For example, the function of one component may be distributed to multiple components, or the functions of multiple components may be integrated into one component. Also, at least part of the configuration of the above embodiment may be replaced with a known configuration having similar functions. Also, at least a part of the configuration of the above embodiment may be added, replaced, etc. with respect to the configuration of the other above embodiment.

DESCRIPTION OF SYMBOLS 1, 101, 201... Bird damage prevention device, 3... Repellent wire, 5... Overhead wire, 11, 111, 211... Mounting part, 13, 113, 313... Extension part, 15... Support part, 21... Receiving part, 21a first wall portion 21b second wall portion 23 lid portion 25 moving portion 27 insertion space 31 projection 33 fixing hole 35 lid fixing portion 37 mounting Disks 41, 241 Operation member 43 Protrusion 51, 351 Side plate 53 Fixing tool 55 Groove 57 Rotating shaft 59a, 59b Evasion line locking groove 61 Vertical plate 63 ...Holding hole 71...Angle adjustment mechanism 72...Connecting post 73...Rotating shaft 74a, 74b...Protrusion 75...Round hole 76...Square hole 83...Straight line 91...Locking part 202...Universal joint

Claims (3)

A bird damage prevention device that is attached to an overhead wire and that hangs a repellent wire along the overhead wire,
an attachment portion configured to be attachable to the overhead wire;
an extending portion provided on the mounting portion;
a support portion provided in the extension portion and configured to support the avoidance line;
The mounting portion includes an operation member configured to be rotatable, and by rotating the operation member, the mounting portion cannot be attached to or detached from the overhead wire, or can be attached to or detached from the overhead wire. , and is configured to be able to transition to
When the bird damage prevention device is projected onto a plane normal to the overhead wire to which the mounting portion is attached, the rotating shaft of the operation member is supported by the avoidance line of the support portion. A positional relationship that intersects a straight line connecting the avoidance line position, which is the position where the
The bird damage preventer is configured such that the center of gravity of the bird damage preventer, the center position, and the avoidance line position are arranged in a straight line. A bird damage prevention device that is attached to an overhead wire and that hangs a repellent wire along the overhead wire,
an attachment portion configured to be attachable to the overhead wire;
an extending portion provided on the mounting portion;
a support portion provided in the extension portion and configured to support the avoidance line;
The mounting portion includes an operation member configured to be rotatable, and by rotating the operation member, the mounting portion cannot be attached to or detached from the overhead wire, or can be attached to or detached from the overhead wire. , and is configured to be able to transition to
When the bird damage prevention device is projected onto a plane normal to the overhead wire to which the mounting portion is attached, the rotating shaft of the operation member is supported by the avoidance line of the support portion. A positional relationship that intersects a straight line connecting the avoidance line position, which is the position where the
The extension portion is rotationally displaced around a rotation axis provided at a position where the attachment portion and the extension portion are connected to each other, thereby obtaining a first position and a relative position relative to the attachment portion. configured to be movable to a second position,
Bird damage prevention device, wherein when the extension is at the first position, the angle between the rotation axis of the operation member and the straight line is smaller than when the extension is at the second position. . The bird damage prevention device according to claim 2 ,
The operation member is configured to be movable to a third position and a fourth position, which are relative positions with respect to the mounting portion,
A bird damage prevention device, wherein an angle between the rotation axis of the operation member and the straight line is smaller when the operation member is at the third position than when the operation member is at the fourth position.

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