JPH0711591Y2 - Bird flight prevention device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a device for preventing various birds such as pigeons, gourds, crows, and crows from flying, and is even higher by utilizing the natural wind. The present invention relates to a bird flight prevention device that is effective.

(Prior Art) Applicants have noted that pigeons and other birds have small magnetites on their heads,
Focusing on the fact that various experimental results have been obtained that are closely related to the earth's magnetic field, locally generate an abnormal magnetic field to prevent birds from flying to places that are harmful to humans The device has already been devised. This is because it is easy and effective to install a magnetic body with a magnetic force that can locally change the earth's magnetic field (about 0.45 to 0.5 gauss in Japan) at an appropriate position such as a veranda, a station yard, a park, etc. In order to prevent it, it is made semi-spherical and the hemi-spherical magnets are arranged on the thread line for tensioning at appropriate intervals, and the bird-preventing effect once it is used, such as conventional pseudo eyeballs. Unlike bird-prevention equipment that can't raise, it does not get used to it because it acts on the bird's body, and it has a sufficient effect.

(Problems to be solved by the invention) As described above, the flying prevention device for preventing the flying of birds by generating the fluctuating magnetic field and the disturbance of the magnetic field is fixedly attached to each place (veranda, park, shrine, etc.). Although it is used, it can produce sufficient results, but it can also generate a fluctuating magnetic field effectively and in a wide range to enhance bird-prevention effect, further simplifying the installation method, and install it anywhere regardless of installation location It is possible, pigeons in the city area, crows, etc.
A highly versatile bird-prevention device that can be applied to all areas suffering from bird damage, such as gourd birds, is conceivable.

The present invention has been made in view of the above-mentioned points, and the magnetic field is constantly changed by continuously or intermittently moving a magnet body that generates a fluctuating magnetic field using natural wind, and is in a fixed state. It is an object of the present invention to provide a bird flight prevention device that can generate a magnetic field disturbance higher than that of a magnetic field, is easy to install, and can obtain a sufficient bird protection effect in a wide area such as a field. .

(Means for Solving the Problem) The gist of the present invention for achieving the above-mentioned object is to provide a main shaft body in which a vertical blade is fixedly provided at a rear portion and a propeller rotating blade is rotatably provided at a front portion. There is provided a bird flying prevention device, which is rotatably provided on an upper end portion of a column, and a magnet body for generating an abnormal magnetic field different from the earth magnetic field is attached to the rotary blade.

(Operation) As described above, the bird flying prevention device of the present invention only needs to fix the supporting column to the place where the bird is damaged, and the main shaft rotates at the upper part of the supporting column so that it is perpendicular to the wind direction by the rear vertical wings. The wind is most likely to be received, and the rotary blades at the front are automatically rotated by receiving the wind. That is, the propeller is rotated by the natural wind by the same action as that of the conventional propeller anemometer. Therefore, since a magnet body that generates an abnormal magnetic field different from the earth's magnetic field is attached to the rotary blade,
The natural wind can be used as a power source to rotate the magnet body, which enhances the variability of the abnormal magnetic field that cannot be obtained with the magnet body fixed and installed. Since the rotation speed, that is, the rotation speed and movement speed of the magnet body changes, the abnormal magnetic field created by the magnet body can always be changed instead of a constant movement speed, which increases the magnetic field disturbance and enhances the bird-prevention effect. It becomes possible.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view, and FIG. 5 is a perspective view showing another embodiment of the present invention.
FIG. 7 is a perspective view showing a usage state.

In the drawings, (1) is a main shaft body, which is made of a lightweight material such as a PVC pipe, a lightweight aluminum pipe, and various resin materials. A propeller rotating blade (2) is rotatably provided at the front part and a vertical blade (at the rear part). 3) is fixedly installed, and at the upper end of the column (4), the spindle (1) can be freely rotated in a horizontal state around the position where the spindle (1) is balanced and the center of gravity. It is installed like this. The rotary blade (2) is a propeller that automatically rotates when receiving wind, and has a structure similar to that of a rotary blade in a normal anemometer. The rotary vane (2) is made of synthetic resin plate (plastic plate) with aluminum thin plates laminated on both sides, and is molded into a blade shape. It can be deformed (angle adjustment) manually. It has flexibility. Of course, it does not matter if the rotary blades are formed of a hard material. Also, on the front side of the rotary blade (2),
Two magnet bodies (5) are attached, and four magnet bodies (5) are rotated by the rotation of the rotary blades (2). The rotary blade (2) is rotatably provided with respect to the main shaft body (1). In this embodiment, as shown in FIG. (1a) (or nut part) is formed, and on the other hand, an insertion hole (2a) having a diameter larger than the screw diameter of the bolt and smaller than the bolt head is formed in the center of the rotary blade (2), and the bolt ( After loosely inserting 6) into the insertion hole (2a), the rotary blade (2) is screwed into the bolt screw-in part (1a) (or nut part) with some play to allow it to move back and forth. However, other methods may be adopted, and the attaching means is not particularly limited. The same applies to the mounting means for rotatably disposing the main shaft body (1) at the position of the center of gravity with respect to the column (4). The vertical blade (3) is a tail blade for positioning the main shaft body (1) perpendicularly to the wind direction and directing the rotary blade (2) in the direction. (5) is a magnet body,
It has a nearly hemispherical shape, and has S poles on both sides of the cut and N poles on the tip side. It generates an abnormal magnetic field different from the earth's magnetic field (0.45 to 0.5 gauss) and creates magnetic field disturbance (for example, the surface is about 1500 gauss). )have. Also, in this embodiment,
Two blades were attached to each blade of the rotary blade (2), but depending on the magnitude of the magnetic force, the size of the rotary blade, the number of blades, etc.
It may be three pieces each, and the number of pieces to be attached and the place of attachment should not be specified. The magnet body (5) may be directly adhered to the front surface of the blade with an adhesive, but as shown in FIG. 3, the lid (7) for the rotary blade (2) and the magnet body (5) is locked. The insertion hole (2b) and the insertion hole (5b) 2 into which the fitting insertion shaft (7a) projectingly formed can be inserted respectively, and the fitting insertion shaft (7a) is inserted from the rear surface side so that the rotary blade (2) is inserted. The magnet body (5) and the locking lid (7) may be locked in a sandwiched manner, and the members can be easily bonded and separated by an adhesive to separate the magnet body (5) easily. There is nothing to do.

Further, the present device may be an airplane type in which the main shaft body (1) is formed in an airplane shape as shown in FIG. 5, or may be a device of another shape. , The propeller rotor blades are automatically rotated by natural wind, and the strong magnet body moves variably to generate an abnormally varying magnetic field that birds cannot approach. The shape and the like are not particularly limited.

Therefore, this device only needs to be installed in a place where birds such as pigeons, gourd birds, and crows do not want to fly, and in the case of fields, orchards, etc., the support pillars (4) can be buried in the ground. In the case of a veranda or the like, the column (4) may be fixed by appropriate means. In addition, when it is used in a field, it can be used also as a mole extermination device if it is buried in a state in which vibration due to the rotational movement of the main shaft body (1) and the rotary blade (2) is transmitted to the ground.

(Effects of the Invention) As described above, according to the present invention, the magnetic field is disturbed by rotating the magnet body at an irregular speed by wind power as compared with the flying prevention device using a fixed magnet body. Can be increased more variably, and it can be installed simply by fixing the pillars, which eliminates the need for troublesome installation operations, especially damage to agricultural products in fields, orchards, etc.
For those who are suffering from noise from droppings and crying,
Since it uses a natural wind to rotate the magnet body to enhance the bird-prevention effect, it can be used semipermanently without the need to consume extra energy such as electricity. It can be said that the commercial value is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a side view. FIG. 3 is a partially cutaway side view showing a mounting portion of a magnet body. FIG. 4 is a partially cutaway side view showing a mounting portion of the rotary blade. FIG. 5 is a perspective view showing another embodiment of the present invention. Sixth,
FIG. 7 is a perspective view showing a usage state. 1 ... Spindle body, 2 ... Rotating blade, 3 ... Vertical blade, 4 ...
Posts, 5 ... Magnet body

Claims (1)

[Scope of utility model registration request] 1. A main shaft body having a vertical blade fixed to a rear portion thereof and a propeller rotating blade rotatably provided to a front portion thereof is rotatably hung on a support upper end portion, and the rotating blade is different from the earth magnetic field. A bird flying prevention device having a magnet body for generating an abnormal magnetic field.