JPH0586125B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for attaching it to power transmission and distribution lines or overhead ground wires,
In order to prevent flashovers or feces damage caused by birds stopping and touching live parts,
This invention relates to a bird damage prevention device for electric wires, etc., which protects electric wires from being damaged due to contact with trees such as roadside trees.

[Conventional technology]

Traditionally, cylindrical protective covers have been used for this purpose, and these conventional covers have many protrusions and thorns on the outer surface of the cylindrical body, making it difficult for birds to access. This makes it difficult to grasp, but with devices like this with protrusions and thorns on the surface, these protrusions and thorns get in the way when attached to electric wires, making it difficult to work with, and furthermore, they rotate when attached to electric wires. It is fixed without any problem,
Once the birds stopped, they could continue to stay stable without wobbling, and the effect of preventing bird damage was insufficient.

In order to solve this problem, the present applicant has developed a pair of left and right supports each having a through hole in the center, and a pair of supports arranged at a distance from each other along the periphery of the supports, with both ends separated by two pieces. An electric wire that uses a rotating body that is composed of a plurality of bars that are each fixed to a support, and that is rotatably attached to the outer periphery of the electric wire, etc. by loosely fitting the electric wire, etc. into the through hole of the support. He invented a bird damage prevention device.

[Problem to be solved by the invention]

The important points that must be overcome when implementing the above bird damage preventive device are: a. Its length must be freely adjustable depending on the place where it is to be used; b. It must cover a long range of electric wires. (c) It must be flexible enough to follow the deflection of the wire due to its own weight; (c) It must be able to rotate reliably without becoming unbalanced even if many birds try to grab it at once, and prevent it from stopping, etc. It is.

[Means to solve the problem]

In order to solve the above problems, the present invention includes a pair of left and right supports each having a through hole in the center, and two supports arranged at intervals along the periphery of the supports, with both ends connected to two supports. Two or more rotating bodies are used, each consisting of a plurality of bars fixedly attached to each other, and rotatably attached to the outer periphery of the electric wire, etc. by loosely fitting the through hole of the support into the electric wire, etc., To provide a bird damage prevention device for electric wires, etc., in which rotating bodies are connected to each other so as to be rotatable independently of each other and are attached to electric wires, etc.

Further, the rotary body has a male connecting portion protruding from the outside of one support body concentrically with the through hole, and a male connecting portion protruding from the outside of the other support body concentrically with the through hole and the male connecting portion. It is desirable to provide a protruding female connecting portion into which the connecting portion can be freely and rotatably fitted.

[Effect]

Birds that try to land on the wire will try to land on the bar of the bird deterrent because the wire is covered with the bird deterrent.

However, since each rotating body is rotatably attached to the electric wire, it is in a very unstable state.

Therefore, when the bird's weight is applied to the bar, the bird preventer rotates and prevents the bird from standing still.

Furthermore, since the electric wire is coated by connecting rotating bodies of appropriate lengths, the length can be freely adjusted depending on the place where it is to be used.

In addition, since a plurality of rotating bodies are connected and coated on the electric wire, and the connected portions perform an interlocking function, there is flexibility in a form that follows the bending of the electric wire due to its own weight.

Furthermore, even if many birds try to grasp it at once, each rotating body can rotate independently of each other, so it will not balance out, but will rotate reliably and prevent it from stopping.

Further, as in claim 2, by providing a male connecting portion and a female connecting portion on each of the pair of supports of the rotating body, the rotating bodies can be easily connected to each other.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1 and 1' are hexagonal in plan as shown in FIGS. 4 and 7, and the ends of bars 2, 2... are fixed to each corner, so that a total of six bars 2 are arranged equally with each other. They are a pair of left and right plate-shaped supports that are supported at a distance. The size of each hexagonal side of these supports 1, 1' is set so that the distance between adjacent bars 2, 2 is such that a bird cannot straddle them with their toes and grasp them at the same time. These supports 1 and 1' are formed with a through hole 3 in the center into which the electric wire W is loosely fitted, retaining rings 3a and 3a' are fitted on the inner peripheral surface of the through hole 3, and further , supports 1, 1' and retaining rings 3a, 3a' are divided into halves 1a, 1b, 1a', 1 by the vertical center line.
b', and the upper sides of the supports 1, 1' are connected by a hinge 4 to make both halves 1a, 1b, 1a', 1b' freely openable and closable.
Install a and 5b.

The retaining rings 3a, 3a' have a female connecting part 6a and a male connecting part 6, which form a female type and a male type, respectively, on their outer surfaces.
b is protruded, and as shown in FIG. 5, the support 1 side (left side) is the female type connecting part 6a, and the support 1' side (right side)
is a male type connecting part 6b, an outer flange 7b is provided protrudingly from the tip of the male type connecting part 6b, and a recessed chamber 7a into which the outer flange is loosely fitted is formed in the female type connecting part 6a.

Furthermore, these retaining rings 3a, 3a' and the connecting part 6
a and 6b are made of a material with a low coefficient of friction, such as polyacetal resin or tetrafluoroethylene resin, and the female connecting portion 6a and male connecting portion 6b are made to engage with each other with appropriate play. Efforts have been made to make it slippery.

On the other hand, the closures 5a, 5b attached to the lower sides of the supports 1, 1' are attached to the outside of the half bodies 1b, 1b' of the supports 1, 1', as shown in FIG.
Also, a closure 5b is pivotally attached to the inside of the half bodies 1b, 1b' with screws 8. One closure 5a has the other half 1 on one side of the flat plate.
A, 1a' is provided with a protrusion 11 that fits into the blind hole 9 provided, and the other closure 5b has a knob piece 13 at its tip.
At the same time, an engaging recess 15 is provided in the intermediate portion to ride on a protruding pin 14 protruding from the inner surface of the half bodies 1a, 1a'.

Next, the use of the rotating body A configured in this manner will be explained. First, the engagement recess 15 of the closure 5b and the protruding pin 14 are disengaged to make the closure 5b free, and the half bodies 1a, 1a' are pushed in the axial direction (in the direction of the arrow in FIG. 8) to open the blind hole. protrusion 11 fitted into 9
is removed from the blind hole 9 to make the closing tool 5a free, and the half bodies 1a, 1a', 1b1b' are expanded as shown by the chain line in FIG. The left and right halves 1a and 1b are spread out and attached to the electric wire W that has been installed by inserting the wire W,
1a' and 1b' are closed, respectively, and the electric wire W is loosely fitted into the retaining rings 3a, 3a'. And the protrusion 1 of the closure 5a
1 into the blind hole 9, and then insert the knob piece 1 of the closure 5b.
3 to lock the engaging recess 15 and the protruding pin 14, and fix the half bodies 1a and 1b and the half bodies 1a' and 1b' together.

Next, the second rotating body A' is attached to the electric wire W on the right side of the rotating body A according to the handling procedure of the rotating body A, and at this time, as shown in FIG. 10, the left end of the rotating body A' The concave chamber 7a of the female connecting portion 6a is engaged with the outer flange 7b of the male connecting portion 6b at the right end of the rotating body A so as to wrap it from the outside. By attaching the third and subsequent rotating bodies to the right side of this connected rotating body A' in the same manner as the second rotating body A', many rotating bodies can be connected to each other over the required length. It can be attached to the electric wire W in a connected state.

FIG. 11 shows another embodiment of the structure of the closures 5a, 5b, in which the blind holes 9 of the half bodies 1a and 1a' of each support 1, 1' are
is the through hole 16, and the protrusion 11 of the closure 5a
is extended to form a shaft-like projection 17. The protruding portion of the shaft-like projection 17 is adapted to engage the engagement recess 15 of the closure 5b. This embodiment has a longer axial protrusion 17 than the one in which the short protrusion 11 of the previous embodiment is fitted into the blind hole 9.
Although the workability is slightly deteriorated because the holder has to be fitted into the through hole 16, once the holder is engaged, it is difficult to come off and it can be continued to be used in a more stable state.

〔Effect of the invention〕

As described above, in the bird damage prevention device for electric wires, etc. of the present invention, each rotating body is rotatably attached to the electric wire, so when a bird tries to take a break and grabs the bar, it will rotate due to the bird's weight. The body rotates and becomes unstable,
Birds cannot stay upright and cannot rest.
Therefore, it is possible to prevent flash damage and feces damage. Furthermore, since there are no protrusions or protrusions on the surface of the rotating body A, the mounting operation can be carried out safely and quickly.
Furthermore, since the electric wires are surrounded and protected by the bars, there is an advantage that the electric wire sheathing can be prevented from being damaged due to contact with trees.

Furthermore, since a large number of rotating bodies of appropriate length are connected and coated on the electric wire, the length can be freely adjusted depending on the place where it is to be used.

The wire is coated by connecting multiple rotating bodies, and even if the individual rotating bodies are straight, the connecting parts function like joints and follow the bending of the wire due to its own weight. There is.

Furthermore, even if many birds try to grasp it at once, each rotating body can rotate independently of each other, so it will not balance out, but will rotate reliably and prevent it from stopping.

Further, as in claim 2, by providing a male connecting portion and a female connecting portion on the pair of supports of the rotating body, the rotating bodies can be easily connected to each other, and
It is also advantageous in terms of cost since it is sufficient to mass produce rotating bodies of the same configuration.

[Brief explanation of the drawing]

The figures relate to one embodiment of the present invention, and Fig. 1 is a perspective view, Fig. 2 is a plan view, Fig. 3 is a front view, Fig. 4 is a side view, and Fig. 5 is an X of Fig. 4. - An X-line sectional view, FIG. 6 is a Y-Y sectional view of FIG. 3, FIG. 7 is a Z-Z sectional view of FIG. 3, and FIG. 8 is an enlarged sectional view mainly showing the closure; Figure 9 is a perspective view of the state in use;
Fig. 10 is an enlarged sectional view centered on the connecting part;
FIG. 1 is a partial sectional view of another embodiment mainly showing the closure. 1, 1'... Support body, 2, 2... Bar, 3... Through hole,
6a...Female type connection part, 6b...Male type connection part, A,
A'...Rotating body, W...Electric wire.

Claims (1)

[Scope of Claims] 1. A pair of left and right supports each having a through hole in the center, which are arranged along the periphery of the supports at a distance from each other, and have both ends fastened to the two supports, respectively. Two or more rotating bodies are used, each consisting of a plurality of bars, which are rotatably attached to the outer periphery of the electric wire, etc. by loosely fitting the electric wire, etc. into the through hole of the support. A bird damage prevention device for electric wires, etc., characterized in that the device is connected to the electric wires, etc. so that they can rotate independently of each other. 2. The rotating body has a male connecting portion protruding from the outside of one support body concentrically with the through hole, and a male connecting portion protruding from the outside of the other support body concentrically with the through hole and the male connecting portion. 2. The device for preventing bird damage for electric wires, etc. according to claim 1, further comprising a protruding female connecting portion into which the connecting portion can be rotatably and loosely fitted.