JP2628472B2 - Magnetic field fluctuation type bird harm prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bird harm prevention device for preventing a bird from flying above an electric pole and coming into contact with a pole device such as a transmission line or a transformer to cause a transmission line accident. It is.

[0002]

2. Description of the Related Art Conventionally, a small-animal extermination device disclosed in Japanese Utility Model Publication No. 2-26306 has been known as a device used for such a purpose. Unit and a motor for moving it, a sensor for detecting approach of a small animal, a sound generating means for generating a sound in response to the detection of the sensor, a light generating means such as a strobe, and a power source for supplying power to these parts. It has a complicated structure including a fuel cell and the like.

[0003]

As described above, those disclosed in the above publications have many functions, and the structure becomes complicated, so that the production cost increases and the cost increases. Since it is used for a long period of time in a proper state, there is a possibility that the function may be deteriorated and some parts may become unusable. In addition, birds can be threatened in various ways by movement, light, sound, etc., but when this extermination device is installed and used in a certain direction on a utility pole, so-called Birds with blind spots can learn this blind spot and approach the pole without any threat effect. Therefore, the present invention has a simple configuration that does not require such a complicated structure, and a bird refuge formed by a magnetic field that repels birds formed by varying the position over a wide range according to the direction and strength of the wind on the telephone pole. It is intended to provide a protective device.

[0004]

In order to achieve the above object, a bird harm prevention device according to the present invention is provided with a flexible shaft cylinder provided on a base, and an elongated rod is provided on the shaft cylinder. The lower end is swingably supported, while on the other hand, a plurality of wide strips are provided by narrow strips at substantially equal intervals in the longitudinal direction of the wings made of thin strip-shaped thin plates,
Along with forming the wide piece so that it can be cut from the narrow piece,
A wing is formed by attaching a plurality of magnets at appropriate positions at both ends of the short tube and the wide piece portion of the wing, and a plurality of wings are attached at appropriate heights of the elongated rod.

[0005]

The base is fixed to a pole on a pole or a transformer such as a transformer, and an elongated rod stands upright near a power transmission line stretched over the pole, and the wing piece protrudes from the elongated rod and the wing. Swings according to the direction and strength of the wind, whereby each wing attached to the elongated rod at an appropriate height swings in different directions. Then, following the complicated swinging of these elongated rods and wings, the magnetic field generated by each of the plurality of magnets attached at appropriate positions of each wing moves to an unspecified position. Because the magnetic fields converge or repel each other to create a strong magnetic field, and the bird cannot learn such a complex magnetic field state, the bird cannot approach the telephone pole.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a base made of a rectangular plate made of a hard vinyl chloride resin. On the upper surface of the base 1, there are provided two concave grooves 2 and 2 for inserting a fastening band in parallel. A shaft cylinder 3 provided with a flexible member at the center of the upper surface of the base 1
Are stood up by bonding the lower ends of them. The shaft cylinder 3 having flexibility is preferably formed of rubber and a spring flexible synthetic resin material. Reference numeral 4 denotes an elongated rod formed of a synthetic resin material such as FRP. The elongated rod 4 is always supported upright by the shaft cylinder 3, and furthermore, the base end 4a is divided in the shaft cylinder 3 so as to be swingable, and receives wind pressure and the like starting from the separation point S. This makes it possible to swing in any direction.

[0007] Elongated wings 5 and 5 are mounted horizontally and in different directions from each other at the upper end and the intermediate height position of the elongated rod 4, respectively. In the embodiment, as shown in FIG. 2, these wings 5 are integrally formed with synthetic resin wings 7, which are formed of thin strips, on the left and right sides of a short tube 6 made of a synthetic resin. Have been. Each of the wings 7, 7 is cut from both sides at substantially equal intervals in the longitudinal direction, and a plurality of wide pieces 8b are formed by narrow pieces 8a leaving a central portion to facilitate cutting from the narrow pieces 8a. . At both ends of the short tube 6 of the wing body 5 and at an arbitrary portion of the wide piece 8b of each wing piece 7, 7, a magnet body 9 made of samarium cobalt is embedded or fixed.

As shown in FIG. 3, the base 1 is mounted on the bird harm prevention device D at a position close to each transmission line W moored to the insulator G on the arm B of the utility pole P as shown in FIG. And the base 1
The fastening bands T, T are inserted into the concave grooves 2, 2, and are screwed around the arm B by being screwed around, and the elongated rod 4 of the bird harm prevention tool D is erected.

[0009] Each bird harm prevention device D mounted on the arm B is not cut off the wing piece 7 on the electric pole P built at a place where the wind is blocked by buildings, houses and the like in the city center. The wide piece 8b of each wing piece 7 is appropriately cut from the narrow piece 8a on the utility pole P in a place where a strong wind normally blows, such as a mountain area, and used as it is. It is adjusted in advance so as to reduce the number and always adjust the received wind pressure. Each bird harm prevention device D mounted on the arm B in this manner has the elongated rod 4 standing upright in a calm state, and each wing 5, 5 as shown by the solid line in FIG.
A magnetic field MF is formed around the plurality of magnet bodies 9. When the wings 7, 7 of each wing 5 receive wind, the elongated rod 4 swings freely from the base end 4a of the shaft cylinder 3 at the lower end according to the direction and strength of the wind. 4 and the wings 7 of the wings 5 constantly oscillate to form magnetic fields MF around each of the plurality of magnets 9 at the oscillating position as shown by the chain line in FIG. .

[0010] Since these magnetic fields M and F change their positions every moment depending on the direction and strength of the wind, even birds with advanced knowledge cannot learn the magnetic field.
Since there is no approach to pole equipment such as a transmission line W and a transformer on the power pole P, occurrence of bird harm can be completely prevented.

FIG. 5 shows a bird harm prevention tool D in which the base 1 is formed in a semi-cylindrical body in place of the flat plate of the above-described embodiment, and the base 1 'is a synthetic resin having elasticity. It is formed of a material. Then, the opening 10 of the base 1 ′ is expanded to be mounted on the cylindrical body C shown by the dashed line, and the cylindrical body C is tightened by the elasticity possessed to use the elongated rod 4 in the upright state. Provided.

[0012]

As described above, in the magnetic field fluctuation type bird harm prevention device according to the present invention, since each wing piece of the wing body receives wind resistance, the elongated rod follows the direction and strength of the wind. The wings attached to the slender rod also swing, following the swinging of the slender rod, constantly changing the direction and inclination, and changing the position of these wings. Since the attached magnetic body fluctuates the magnetic field generated by each, birds can not learn complicated fluctuations of the magnetic field, and birds do not approach these power lines and pole equipment by avoiding these magnetic fields. Bird damage such as a short circuit accident can be prevented beforehand and reliably.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bird harm prevention device according to the present invention.

FIG. 2 is an enlarged perspective view of a wing.

FIG. 3 is a perspective view of a use state in which the bird harm prevention device is attached to a pole of a utility pole.

FIG. 4 is an explanatory diagram of a state in which a magnetic field fluctuates due to swinging of the bird harm prevention device.

FIG. 5 is a perspective view of another embodiment of the bird harm prevention device in which the configuration of the base is changed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 'Base 3 Shaft cylindrical body 4 Slender rod 5 Wing body 6 Short tube 7, 7 Wing piece 8a Narrow piece part 8b Wide piece part 9 Magnet D Bird harm prevention tool P Electric pole B Arm tree

Claims (1)

(57) [Claims] A flexible shaft cylinder is erected on a base and the lower end of an elongated rod is swingably supported on the shaft cylinder, while a longitudinal direction of a blade piece made of a thin strip-shaped thin plate is provided. A plurality of wide strips are provided by the narrow strips at substantially equal intervals, and the wide strips are formed so as to be cuttable from the narrow strips, and both ends of the short pipe and the appropriate positions of the wide strips of the wing pieces. A magnetic field fluctuation type bird harm prevention tool comprising a plurality of wings formed by attaching a plurality of magnets to the elongated rod at appropriate heights of the elongated rod.