JPS5837260Y2 - Bird damage prevention device for overhead wires - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for controlling bird damage, such as contamination and corrosion of objects under overhead wires by horse manure, direct damage caused by feeding on garden crops, and noise caused by chirping.

Conventionally, intimidating means such as scarecrows, sound, flashing lights, etc. have been commonly used to control bird damage, but these methods are often ineffective and cannot be used due to the location.

The present invention was devised to eliminate bird damage, particularly damage caused by horse manure, and focuses on the fact that horse manure is mainly excreted by birds that are in a dormant state. It was designed to keep away.

By the way, when birds land on electric wires, cables, etc. suspended in the air, their legs naturally tighten due to their weight, so they do not use a structure that makes the surface of the wires, cables, etc. slippery. It also has almost no effect.

In consideration of the above points, the present invention has been developed by using metal wires such as suspended electric wires, cables, etc. over the required length to prevent bird damage, as shown in the embodiment of the drawings. , hard synthetic resin,
It is made by covering the end surfaces of a large number of tubular bodies 2 made of pottery etc., and due to this structure, when a bird sits on the tubular bodies 2, the outer tube 2 naturally collapses due to the weight of the bird. The aim was to have the effect of making the bird stiff and unable to fly away even though the bird is suspended in the air.

Note that the outer tube 2 may be a simple straight tube, but as shown in FIG.
As shown in D, the protruding corners 3 radially project from the circumferential surface of the pipe body.
... may be implemented so that when a bird perches, the radius of rotation may be increased in order to guide the bird into suspension.

Further, the tubular body 2 may have a split-shaped structure other than a completely cylindrical shape.

This split structure has the advantage that it can be directly fitted onto overhead wires that have already been stretched to cover the overhead wires.

As described above, the present invention has a very simple structure and reliable effects, and can be effectively applied to new and existing electric wires, ropes for drying fish, and other wires and strings.

Example: A metal wire with a diameter of 2.5 mm and a length of 4007It1n, an inner diameter of 4.
mm.

A plurality of polyethylene hollow pipes each having six outer diameters and a length of 20 mm were rotatably connected in a bead shape.

For comparison, a metal wire was covered with a similar polyethylene hollow pipe so that it could not rotate.

When a linear object covered with this polyethylene hollow pipe was placed in a birdcage containing adult bird ink and observed, it was found that the linear object of the present invention tried to stop, but it did not stop, and the wire did not rotate. It stopped only in the shape of the body.

Next, when the non-rotating linear object was removed and only the rotatable linear object was installed, the ink became nervous and irritated because it could not stop on the rotating linear object. condition was observed.

In addition, when the same device was placed outdoors and a mandarin orange cut in half was placed near a linear object as bait, the ink did not eat any of the mandarin oranges placed near the linear object according to the present invention.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing a part thereof, and FIGS. 2A to 2D are views showing other examples of the cross-sectional shape of the tubular body. Codes in the figure: 1... Overhead wires, 2... Curved tubular body, 3
... ...indicates a protruding corner.

Claims (1)

[Scope of utility model registration request] A bird damage prevention device for overhead wires, which comprises covering overhead wires 1 such as stretched electric wires and cables with a number of rotatable tubular bodies 2 over a required length thereof.