JP2757110B2 - Bird control apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing birds from flying and a method for preventing birds from flying.

[0002]

2. Description of the Related Art In recent years, there has been a serious problem such as pollution caused by defecation by birds such as pigeons and birds and damage such as pecking of agricultural products. Therefore, as a means to reduce the damage caused by these birds, there are methods such as explosion sound generation in fields and methods aimed at visual disturbance effects such as pseudo eyeballs, etc.
Ways to get rid of birds are being implemented. However, these methods were not effective once the birds became accustomed, and were temporary.

On the other hand, various bird-control devices using magnets have been devised by utilizing the ability to detect the magnetic field of birds.
These conventional devices have practical problems such as a complicated structure and lack of durability.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a bird-proofing device and a bird-proofing method which have an effect of permanently preventing birds from flying, are simple in structure and do not impair the appearance. The task is to provide

[0005]

Means for solving the above-mentioned problems include a rod-shaped magnet (hereinafter referred to as "spiral magnet") having a multi-threaded magnetic pole as shown in FIG. 1 or a spiral magnet as shown in FIG. A bar-shaped magnet (hereinafter, referred to as a "step magnet") having a fixed pitch of magnetic poles on its outer surface is used to make these bar-shaped magnets freely rotatable horizontally, and a wind catch flag suspended on the bar magnet or a wind catch attached to the bar magnet A bird protection device characterized by generating a fluctuating magnetic field by rotating a bar-shaped magnet horizontally by using a wind force by a plate or a rotating force urging means by an electric motor, and in a place where it is desired to prevent birds from flying, a spiral magnet or This is a method in which a step magnet is arranged, or a spiral magnet or a step magnet is horizontally rotated to generate a fluctuating magnetic field, and birds are repelled. As these bar-shaped magnets, MnAlC magnets are optimal.

[0006]

The distribution of the lines of magnetic force generated by the magnet according to the present invention is shown in FIGS. FIG. 3 relates to a spiral magnet and has a helical magnetic field distribution around a rod magnet with the dotted line in FIG. 3 as a boundary, and FIG. 4 relates to a step magnet with a rod shape with a dotted line in FIG. 4 as a boundary. It has a wavy magnetic field distribution with a constant pitch around the magnet. These magnetic field distributions generate an abnormal magnetic field as compared with a normal NS2 pole magnetized magnet, but birds tend to sense such an abnormal magnetic field and avoid such places, so that birds can be prevented from flying. More effective against

[0007] By moving the magnet by wind power or an electric motor, a fluctuating magnetic field is generated, and a further effect can be obtained.

[0008]

【Example】

Embodiment 1 FIG. 5 shows an example of assembly as a bird protection device using wind power. A flag 2 on which an arbitrary pattern is drawn is suspended from a MnAlC rod-shaped magnet 1 that has been subjected to spiral magnetization or step magnetization, and a center 3 that is the center of gravity of the magnet is a single wire 3.
To be hung. For this reason, the bar-shaped magnet 1 to which the flag 2 is attached is rotated in response to a slight wind by applying a horizontal rotational force, and generates a fluctuating magnetic field around the bar-shaped magnet 1. This has a very simple structure, is easy to install, has excellent durability, and has a good aesthetic appearance.

Embodiment 2 FIG. 6 shows another example of assembling a bird protection device using wind power. A plastic wind receiving plate 6 is vertically attached to both ends of the MnAlC rod-shaped magnet 1 that has been subjected to spiral magnetization or step magnetization, and the center, which is the center of gravity of the magnet, is suspended by one wire 3. . For this reason, the bar-shaped magnet 1 with the wind receiving plate 6 attached thereto
Is rotated in response to a slight wind with a horizontal rotational force applied,
A fluctuating magnetic field is generated around the bar-shaped magnet 1. This is also a very simple structure, and is excellent in simplicity of installation and durability, and also good in appearance. In this case, the bar-shaped magnet 1 is not suspended by the wire 3 as shown in FIG. 6, but is supported by a support shaft at the center of gravity from below, and the support shaft is rotated by an electric motor to generate a fluctuating magnetic field around the bar-shaped magnet 1. Of course, it can occur.

Embodiment 3 FIG. 7 shows an example of assembly as a birdproofing device using an electric motor. The MnAlC rod magnet 1 that has been subjected to spiral magnetization or step magnetization is suspended by a wire 3 at its center of gravity. The upper end of the wire 3 is held on the rotating shaft 5 of the electric motor 4. Therefore,
The rod-shaped magnet 1 is rotated by the rotating shaft 5 of the slowly rotating electric motor.
Is slowly rotated horizontally to generate a fluctuating magnetic field around the bar-shaped magnet 1. Also in this case, the rod-shaped magnet 1 is
As a matter of course, instead of being suspended by the wire 3 as described above, the center of gravity can be supported by a support shaft from below, and the support shaft can be rotated by an electric motor to generate a fluctuating magnetic field around the rod-shaped magnet 1.

Furthermore, the bar-shaped magnet is made of a non-magnetic material, for example,
The effect is the same even when covered with a stainless steel pipe, a plastic pipe, or the like.

Example 4: Pigeons approached the entrance of the company building and suffered enormous damage due to their droppings. Therefore,
As shown in FIG. 7, MnA having a diameter of 6.5 mm and a length of 150 mm.
Spiral magnetizing the 1C magnet and preparing a wire with a wire attached in the center, near the entrance of the company building,
The spirally magnetized MnAlC magnet was arranged at a pitch of 60 cm, and observation was performed. Each morning, the number of droppings made by the pigeon every day was counted to confirm the habitation of the pigeon. As a result, as shown in FIG. 8, the effect appeared from the day after the magnet was installed, and the number of newly made feces became zero two weeks later. Since then, the pigeon has never appeared.

[0013]

According to the present invention, by using a MnAlC magnet having a special spiral or step-like magnetic field distribution, an extraordinary magnetic field can be obtained as compared with a conventional NS2-pole magnetized magnet. Is generated, and by rotating a MnAlC magnet having a special spiral or step-like magnetic field distribution in the present invention, a stronger fluctuating magnetic field is generated around these magnets, so that the apparatus of the present invention is extremely simple. Although it is a device with a simple structure, it has a remarkable repelling force compared to the conventional birdproofing device using magnets,
And the effect is semi-permanent. Therefore, the present invention has excellent effects, such as being able to more effectively prevent birds from flying and preventing birds from damaging feces and crops.

[Brief description of the drawings]

FIG. 1 is a diagram showing a magnetic pole distribution of a spiral magnet that is a rod-shaped MnAlC magnet having a multi-threaded magnetic pole used in the present invention.

FIG. 2 is a diagram showing a magnetic pole distribution of a step magnet, which is a rod-shaped MnAlC magnet having magnetic poles at a constant pitch on the outer surface used in the present invention.

FIG. 3 is a diagram illustrating the magnitude of a magnetic field distribution around a spiral magnet.

FIG. 4 is a diagram showing the magnitude of a magnetic field distribution around a step magnet.

FIG. 5 is a diagram showing an example of assembly as a bird-proofing device using wind power.

FIG. 6 is a diagram showing another example of assembly as a birdproofing device using wind power.

FIG. 7 is a view showing an example of assembly as a bird-proofing device using an electric motor.

FIG. 8 is a graph showing the birdproofing effect of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bar-shaped magnet 2 Flag 3 Wire 4 Electric motor 5 Rotation axis 6 Wind receiving plate

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-5-176665 (JP, A) JP-A-1-63386 (JP, U) JP-A-4-52485 (JP, U) (58) Investigation Field (Int.Cl. ⁶ , DB name) A01M 29/00

Claims (6)

(57) [Claims] The present invention is characterized in that a horizontally arranged multi-threaded magnetic pole or a bar-shaped magnet having a magnetic pole with a fixed pitch is provided as a horizontally rotatable support structure, and a rotational force urging means is provided on the bar-shaped magnet. Bird control equipment with a variable magnetic field generation structure. 2. A bird control apparatus having a fluctuating magnetic field generating structure, wherein the rotational force urging means according to claim 1 is a wind flag hung on a bar-shaped magnet. 3. A bird control apparatus having a fluctuating magnetic field generating structure, wherein the rotational force urging means according to claim 1 is a wind receiving plate attached to a rod-shaped magnet. 4. A bird protection apparatus having a fluctuating magnetic field generating structure, wherein the rotational force urging means according to claim 1 is an electric motor arranged on a horizontally rotatable support structure. 5. A bird protection method characterized by disposing a bar-shaped magnet having a multi-threaded magnetic pole or a magnetic pole having a constant pitch at a place where birds fly, and making the birds repel. 6. A bird-like magnet having a multi-threaded magnetic pole or a magnetic pole having a constant pitch is disposed at a place where birds fly, and the rod-like magnet is rotated horizontally to generate a fluctuating magnetic field, thereby avoiding birds. A bird-proofing method characterized by the following: