WO2021167106A1

WO2021167106A1 - Bird repelling device and bird repelling facility equipped with same

Info

Publication number: WO2021167106A1
Application number: PCT/JP2021/006694
Authority: WO
Inventors: 秀樹猿田
Original assignee: 一級建築士事務所株式会社ビックウォーク
Priority date: 2020-02-21
Filing date: 2021-02-22
Publication date: 2021-08-26
Also published as: JP2021132531A; JPWO2021167106A1; JP6765739B1; JP2021132633A

Abstract

A repelling device 1 is provided with: a plurality of blades 2 fixed to a rotating body 3; and a support shaft 4 standing on a base 5. The rotating body 3 is rotatably mounted to the support shaft 4 via a bearing. Each blade 2 comprises a plurality of flaps 15, 16 bent along a crease 14. Each flap 15, 16 is inclined with respect to a plane including the rotational axis O and a plane perpendicular to the rotational axis O. Each flap 15, 16 has a plurality of pointed edge sections 17-21. The blades 2 have an angular sharp shape and diffusely reflect sunlight to make birds feel great fear and prevent the birds from approaching. The manner of light reflection varies constantly. This makes it possible to prevent birds from getting used to the device and maintain a high repelling effect. An upward-facing orientation, a downward-facing orientation, or a side-facing orientation can be arbitrarily selected.

Description

Bird repellent device and bird repellent equipment equipped with it

The present invention relates to a bird repellent device for blocking the arrival of birds (bull-headed shrike, crow, eagle, pigeon, starling, hundred tongue, sparrow, bulbul, river cormorant, etc.) and a bird repellent device equipped with this bird repellent device. be.

Various bird repellent devices have been proposed to prevent feeding damage and fecal damage caused by wild birds, infectious diseases such as bird flu, and power transmission failure and communication failure caused by birds. Bird repellent devices include types that threaten with sound, types that use ultrasonic waves, and types that appeal to the eyes and keep them away. The visually appealing and repellent type uses dazzling and alert effects to repel, and some of them are rotary types that take advantage of the fact that birds dislike irregular reflected light.

As a rotary repellent device,

Patent Documents

1 and 2 disclose a fan-like form in which the tips of the blades are formed at an acute angle, and Patent Document 3 discloses the blades orthogonal to the axis of rotation. It is disclosed to bend in a crank shape at a crease. Further, Patent Document 4 discloses that a large number of blades are formed in a trapezoidal shape that spreads outward when viewed from the direction of the axis of rotation.

Utility model registration No. 3180809 CD-ROM Japanese Unexamined Patent Publication No. 2014-57566 Utility model registration No. 3074511 CD-ROM Japanese Unexamined Patent Publication No. 2016-171706

It is not fully understood why birds are wary of rotating repellents, but it is presumed that birds are very wary of irregular reflected light and sharp light. It is also presumed that it has the property of being wary of specific shapes. When the inventor of the present application observed the seagull, he was very cautious about the blades made of stainless steel plate with sharp edges, and did not approach the bait (fish) even in the vicinity.

Therefore, it is understood that forming the tip of the blade at an acute angle as in

Patent Documents

1, 2 and 4 is beneficial for obtaining a repellent effect, but the blade of

Patent Documents

1, 2 and 4 is curved as a whole. Therefore, it is understood that the diffused reflection of light is small and the repellent effect is limited.

On the other hand, in Patent Document 3, since the blades are bent in a crank shape, it is presumed that the diffused reflection effect of light is higher than that of

Patent Documents

1, 2 and 4, but the blades are in a direction orthogonal to the rotation axis. Since it consists of a part that spreads out and a part that is parallel to the center of rotation, it is presumed that the diffused reflection effect is not so high even if it is rotated.

The invention of the present application was made against the background of such a situation, and is intended to disclose a technique having an excellent repellent effect on birds.

The present application includes inventions having various configurations. In other words, the invention of the present application has various aspects. A typical example thereof is specified as the first to seventh inventions.

(1). First Invention The bird repellent device according to the first invention includes a support arranged directly at an installation location or via an intermediary member, and a rotating body rotatably held by the support. , With a plurality of blades arranged around the axis of the rotating body and fixed to the rotating body.
Each of the blades has a plurality of flaps bent through a crease, and each of the flaps is inclined with respect to a plane including a rotation axis and a plane orthogonal to the rotation axis, and at least one. The flap has a plurality of pointed edges protruding in a direction intersecting the rotation axis or in a direction parallel to the rotation axis.
In the first invention, the rotating body may be tubular or rod-shaped solid. Further, the rotating body includes the rotating shaft of the motor. The support includes a support shaft.

In the first invention, the blade has a crease and a plurality of flaps are bent, and at least one flap has a plurality of pointed edges, so that the blade is sharp and angular as a whole. It is in the form. For this reason, it is possible to give the bird a strong alertness and enjoy a high repellent effect. It is not clear why birds are wary of their sharp, angular morphology, but it is speculated that birds may feel like a harmed knife because of their unnatural morphology that does not exist in nature. ..

Further, since each flap constituting the blade is inclined with respect to the plane including the rotation axis and the plane orthogonal to the rotation axis, the diffused reflection action of light due to rotation can be enhanced and the sharpness of the blade can be further emphasized. .. As a result, it can be said that the alertness of the bird can be further increased and the repellent effect (intimidating effect) can be further improved. If the flaps are tilted, there is also the advantage that the ability to rotate the blades by the wind can be improved.

When the inventor of the present application conducted an experiment at a fishing port, the bait (fish) approached and pecked when the bait (fish) was placed in the absence of the device of the present invention. However, a high repellent effect was confirmed (a high repellent effect is exhibited even if the blades do not rotate). The experiment was conducted privately so as not to be seen by the public.

(2). Inventions 2 to 4 The bird repellent device according to the second invention includes a base fixed to the installation location directly or via an intermediary member, a support shaft fixed to the base, and the support. It includes a tubular rotating body arranged so as to surround the shaft, and a plurality of blades arranged around the axis of the rotating body and fixed to the rotating body.
A lid plate is provided at one end of the rotating body on the side opposite to the base, and the lid plate is rotatably attached to the support shaft.
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. , Has at least one pointed edge projecting in a direction intersecting or parallel to the center of rotation. The rotating body is preferably attached to the support shaft via a bearing (the same applies to other inventions).

The bird repellent device according to the third invention comprises a support shaft arranged directly at the installation location or via an intermediary member, a tubular rotating body arranged so as to surround the support shaft, and the rotating body. It is provided with a plurality of blades arranged around the axis and fixed to the rotating body.
A lid plate is provided at one end of the rotating body on the side opposite to the installation location, and the lid plate is rotatably attached to the support shaft.
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. , Has at least one pointed edge projecting in a direction intersecting or parallel to the center of rotation.

The bird repellent device according to the fourth invention includes a tubular rotating body having a lid plate at one end, and a plurality of blades arranged around the axis of the rotating body and fixed to the rotating body. , While the lid plate of the rotating body is fixed to the rotating shaft arranged inside the rotating body,
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. , Has at least one pointed edge projecting in a direction intersecting or parallel to the center of rotation.

Since the second to fourth inventions have a plurality of flaps and sharp edges that are bent and connected, the same effect as that of the first invention is exhibited. Further, in the second to fourth inventions, since the blades are attached to the cylindrical rotating body, there is an advantage that the bearing is protected by the rotating body and has excellent durability. Further, when the rotating body is tubular, the outer diameter of the rotating body can be increased while reducing the weight, so that the blades can be firmly fixed to the rotating body while ensuring smooth rotation (mounting allowance for the blades on the rotating body). Can be taken large.).

It is possible to drive the blades with a motor, but in this case, if the rotating body is tubular as in the second to fourth inventions, the motor can be arranged inside the rotating body, which simplifies the structure. At the same time, there is an advantage that the protection function of the motor can be improved.

(3). Fifth Invention In any one of the first to fourth inventions, the bird repellent device according to the fifth invention has the blades in the direction intersecting the rotation axis of the rotating body. It is provided with two flaps that are bent across the long crease, and the first flap located on the side far from the base across the crease is the first flap that is located on the side far from the base. The sharp edge portion having a sharp angle protruding in the direction intersecting the center of rotation is formed.

When the sharp edge of the first flap is formed at an acute angle when viewed from the direction of the axis of rotation as in the fifth invention, the effect that the blade looks like a sharp blade is promoted, and the repellent effect can be greatly improved. It can be said.

(4). Sixth Invention The bird repellent device according to the sixth invention is rotatably provided on a support (for example, a support shaft) arranged at an installation location directly or via an intermediary member, and the support. It is provided with a rotating body and a plurality of metal plate blades arranged around the axis of the rotating body and fixed to the rotating body.
Each of the blades has an outer surface facing the side opposite to the installation location, and the outer surface is provided with a reflection promoting portion that irregularly reflects or refracts and reflects the received light.

When the reflection promoting portion is provided in this way, sharp and random reflected light is generated due to diffused reflection and refraction of light, so that the same high threatening effect as the sharp edge portion of the first to fifth inventions can be exhibited. The sixth invention and the first to fifth inventions are not contradictory and can be used together.

(5). Seventh Invention The seventh invention relates to a bird repellent facility, and includes a bird basic device and a light projecting device that irradiates LED light toward the bird basic device.

Then, the bird basic device includes a support (for example, a support shaft) arranged directly at the installation location or via an intermediary member, a rotating body rotatably provided on the support, and an axial center of the rotating body. It is equipped with a plurality of blades arranged around and fixed to the rotating body.
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. , Has at least one pointed edge projecting in a direction intersecting or parallel to the center of rotation.

In the seventh invention, one LED lamp and one bird repellent device can be used as a set, and light is emitted from one ED lamp toward a large number (plurality of) bird repellent devices. It is also possible to irradiate.

The extremely sharp light of LED lamps is experienced by many people, for example, in automobile headlights. The seventh invention utilizes the characteristics of this LED lamp, and by reflecting the sharp light of the LED lamp by the bird repellent device, it is possible to generate strong reflected light and enhance the threatening effect on the bird. Even in weak natural light such as cloudy weather or dusk, it can form strong reflected light and exert a high bird repellent effect.

Each invention of the present application exhibits the above-mentioned effects. In the present invention, the flaps of each blade are preferably flat, but may be slightly curved. The blade can also be manufactured of punching metal or lath plate. Further, it is possible to form a large number of irregularities such as embossing on the blades.

In the present invention, the number of blades can be arbitrarily set according to the size of the repellent device, etc., but it can be said that generally 3 to 4 blades are sufficient. Further, due to the nature of being installed outdoors, the blades are preferably made of a stainless steel plate because of the requirements for weather resistance and rust prevention. Further, in terms of cost, it is preferable to rotate the blades with wind, but in order to enhance the repellent effect in a windless state, it is also possible to drive the blades with a motor as described above.

When the bird repellent device of the present invention is attached to a building, the posture of the repellent device may be set according to the state of the target portion. For example, when it is placed on the roof, it may be in an upward posture in which the blades are on the top and the base is on the bottom, and when it is placed on the wall, it may be in a horizontal posture in which the rotation axis is horizontal. It is also possible to mount it in a downward position with the blades on the bottom and the base on the top, such as when arranging it on the underside of the eaves.

The repellent device of the present invention can be placed in any place where bird damage may occur. For example, it is possible to protect various buildings, steel towers for power transmission / communication, utility poles, relay bases for mobile phones, garbage collection sites, ports, airports, ships, work vehicles, etc. from bird damage. In recent years, avian influenza mediated by wild birds such as migratory birds has become a problem for chickens. However, by installing the repellent device of the present invention on the windows and walls of the poultry house, the invasion of wild birds into the poultry house is prevented. Therefore, it is expected that the epidemic of bird flu can be prevented or significantly suppressed. It is also useful as a countermeasure against bird strikes at airports.

It is a figure which shows the 1st Embodiment, (A) is a perspective view which omitted a part, (B) is a perspective view of one blade. (A) is a plan view of the repellent device, and (B) and (C) are cross-sectional views showing a fixed structure to the site. FIG. 2 is a sectional view taken along line III-III of FIG. 2 (A). It is a schematic perspective view of the building where the embodiment is installed. (A) is a cross-sectional view of VA-VA in FIG. 4, (B) and (C) are alternative views of (A), (D) is a cross-sectional view of VD-VD in FIG. 4, and (E) is the vicinity of a window. It is a front view arranged in. It is a figure which shows another installation example. (A) shows the second embodiment and is a diagram of a pattern that can be applied to the blades, (B) is a partial perspective view of the third embodiment, and (C) is a partial perspective view of the fourth embodiment. be. (A) is a partial plan view of the fifth embodiment, (B1) to (B3) are cross-sectional views taken along the line BB of (A), and (C) is a partial outer view of the blades of the sixth embodiment. , (D) is a sectional view taken along the line DD of (C), (E) is a partial external view of the blade of the seventh embodiment, (F) is a sectional view taken along the line FF of (E), (G). ) Is a cross-sectional view of the edge of the eighth embodiment, (H) is a partial perspective view of the rotating shaft according to the ninth embodiment, and (I) is a schematic view of the tenth embodiment embodying the seventh invention. be.

(1). Structure of First Embodiment Next, an embodiment of the present invention will be described with reference to the drawings. First, the repellent device of the first embodiment will be described with reference to FIGS. 1 to 3. The repellent device 1 of the present embodiment includes three blades 2, a cylindrical rotating body 3 to which the blades 2 are fixed, and a cylindrical fixed support shaft 4 in which the rotating body 3 is rotatably held. The fixed support shaft 4 is erected on the base 5. Each member is made of, for example, stainless steel.

In the following, the upper and lower words are used to specify the direction, but for convenience, the axis O of the rotating body 3 is assumed to be in a vertical posture, the blade 2 is located above and the base 5 is located below. The vertical direction is specified based on the state of being.

The base 5 is formed in a rectangular shape and has a pair of bolt insertion holes 6. The form of the base 5 can be set arbitrarily. As shown by the alternate long and short dash line in FIG. 2, it is also possible to form the base 5 into a square shape and to make bolt insertion holes 6 at the four corners.

As shown in FIG. 3, the upper end of the fixed support shaft 4 is closed by the upper plate 7, and the bearing 8 is arranged on the upper plate 7. The bearing 8 is a ball bearing that forms an inner race, an outer race, and a ball group. The outer race is non-rotatably fixed to the case 9, and the case 9 is fixed to the upper plate 7 by screwing or welding. On the other hand, the screw 10 is inserted and fixed to the inner race of the bearing 8 from below, the screw 10 is exposed upward, and the washer 11 is fixed to the exposed portion by welding or the like. The screw 10 is an example of a rotating shaft.

A lid plate 12 is integrally provided at the upper end (one end) of the rotating body 3, the upper portion of the screw 10 is inserted into the lid plate 12 from below, and the hexagon nut 13a and the bag nut 13b are screwed into the screw 10. The rotating body 3 is fixed to the screw 10. Therefore, the rotating body 3 rotates lightly via the bearing 8.

The blades 2 have a flat first flap 15 located on the upper side (the side far from the base 5) of the crease 14 located on the upper end surface of the rotating body 3, and the lower side (the side closer to the base 5) of the crease 14. ), Both of which are bent in a crossed posture when viewed from the axial direction of the crease 14. Therefore, when the wind blows in the direction of the rotation axis O, the blade 2 rotates in the direction in which the crease 14 is behind, as shown by the arrow in FIG. 2 (A). In the case of crosswinds, it may rotate in the opposite direction.

The crease 14 extends in a direction orthogonal to the rotation axis O (crossover direction) and intersects the rotation axis O. The crossing angle θ1 between the first flap 15 and the lid plate 12 of the rotating body 3 is set to about 45 °, while the crossing angle θ2 between the second flap 16 and the lid plate 12 of the rotating body 3 is about 30. It is set to °. Needless to say, θ1 and θ2 can be set arbitrarily.

The second flap 16 is entirely located outside the rotating body 3, but a part of the first flap 15 overlaps with the lid plate 12 of the rotating body 3, so that the first flap 15 is the second. It has an inwardly projecting portion 15a that has entered the rotation axis O side from the flap 16, and the lower end edge of the inwardly projecting portion 15a is fixed to the lid plate 12 of the rotating body 3 by welding. As is clearly shown in FIG. 3, the inner edge 16a of the second flap 16 is inclined downward so as to be separated from the rotating body 3. The blade 2 may be fixed to the outer peripheral surface of the rotating body 3.

As shown in FIGS. 1 and 3, the first flap 15 has a form in which the vertical width broadens roughly in the direction away from the rotation axis O, and the upper width of the tip portion far from the rotation axis O is equal. It has become. Therefore, it has a pentagonal shape. On the other hand, the second flap 16 has an inverted trapezoidal shape in which the width decreases downward. Therefore, both

flaps

15 and 16 are inclined with respect to both the plane including the rotation axis O and the plane orthogonal to the rotation axis O.

The outer end surface 15b of the first flap 15 and the outer end surface 16b of the second flap 16 are inclined so as to become higher as they are separated from the rotation axis O, but both outer end surfaces 15b and 16b are the rotation axis centers. It is continuous in a straight line when viewed from the direction orthogonal to O and the crease 14. Therefore, in the state where the blade 2 is deployed, the outer end surfaces 15b and 16b of both

flaps

15 and 16 are continuous in a straight line.

The outer end surface 15b of the first flap 15 is inclined so as to become higher as the distance from the rotation axis O increases, while the upper surface 15c of the outer end portion of the first flap 15 is in a posture orthogonal to the rotation axis O. .. Therefore, an acute-angled outer pointed edge portion 17 is formed on the upper and outer sides of the first flap 15. Further, the first flap 15 is formed with an obtuse-angled inner pointed edge portion 18 and an intermediate pointed edge portion 19.

The second flap 16 is formed with an obtuse-angled inner pointed edge portion 20 and an outer pointed edge portion 21, but the outer pointed edge portion 21 has a rounded shape so as not to be damaged even if it is touched by a human hand. I'm letting you. The inner pointed edge 18 and the outer pointed edge 17 of the first flap 15 are also slightly rounded for safety.
As can be seen from the comparison between FIGS. 2 and 3, the blade 2 has a larger maximum area seen from the direction orthogonal to the axis than the area seen from the axis direction. Further, as shown in FIG. 3, the blades 2 are spread on both the upper and lower sides with the upper end of the rotating body 3 as a boundary.

(2). Action / Arrangement mode The blade 2 of the present embodiment has a sharp shape like a blade because both flaps 15 and 16 have acute-angled or obtuse-angled sharp edges 17 to 21. There is. Moreover, since both

flaps

15 and 16 are bent in a dogleg shape and both are inclined with respect to the plane including the rotation axis O, light such as sunlight is reflected in a complicated manner on the front surface and the back surface. In particular, when it rotates, the reflected light changes in a complicated manner, giving a strong sense of caution to the bird. Therefore, it exerts a high bird repellent device effect.

In addition, if the change in morphology is constant, the phenomenon of getting used to the bird is likely to occur, but the strength and direction of the reflected light changes greatly due to changes in the height of the sun and the strength of the wind, so the bird's It is possible to prevent habituation and perpetuate a high repellent effect.

The means for attaching to the target part may be appropriately selected depending on the structure of the target part. In the example shown in FIG. 2B, when the target portion 23 is made of a shaped steel or a plate material such as a channel material or an H-shaped steel, a through hole 24 is formed in the target portion 23, and the base 5 and the target portion 23 are formed. Is fixed with bolts 25 and nuts 26.

On the other hand, in the example shown in FIG. 2C, when the target portion 23 is also made of a shaped steel or a plate material such as a channel material or an H-shaped steel, it is fixed by using a drill screw 27. When the target portion 23 is made of wood, it may be fixed with wood screws or nails. When the target portion 23 is made of metal, it is also possible to make a pilot hole and then fasten it with a tapping screw. Alternatively, fastening using a blind nut is also possible. As a matter of course, a tap hole may be formed in the target portion 23.

If sealing properties are required, an elastic sheet (gasket) such as rubber may be interposed between the base 5 and the target portion 23. On the contrary, it is also possible to raise the height by arranging a spacer, a collar, or the like between the base 5 and the target portion 23.

(3). Example of arrangement mode FIGS. 4 to 6 show an example of arrangement of the repellent device 1. The building shown in FIG. 4 is a livestock facility 30 equipped with a livestock barn 29 such as a poultry house, and is a main building 32 provided with an entrance (entrance) 31 through which people enter and exit, and a cargo handling facility equipped with eaves 33 and a shutter 34. A unit 35 and a warehouse unit 37 provided with a shutter 36 are provided.

The barn 29 is provided with a large number of windows 38, which can be covered with a roll-up curtain 39 (see FIG. 5 (D)). Therefore, the curtain elevating unit 41 is arranged above the window 38 in the wall 40 of the livestock barn 29. The roof of the purlin 32 is inclined, but the other parts are flat flat roofs 42, and a frame 43 is provided on the outer periphery of the flat roof 42.

Then, as shown briefly with black circles in FIG. 4, on the eaves of the doorway 31, the tip of the eaves 33, the wall of the warehouse 37, the outer surface of the curtain elevating unit 41, the upper surface of the enclosure 43 in the flat roof 42, etc. The repellent device 1 is arranged.

As shown in FIG. 5A, when the repellent device 1 is arranged on the upper surface of the enclosure 43, the posture is such that the blade 2 is facing up, but when the repellent device 1 is arranged on the front surface of the eaves 33, the posture is taken. The axis of rotation is in a horizontal position. As shown in FIG. 5B, the repellent device 1 can be fixed to the lower surface of the eaves 33 in a downward posture. Further, as shown in FIG. 5C, it is also possible to arrange the repellent device 1 in a forward-facing posture via the bracket 44.

When the curtain elevating unit 41 is arranged, as shown in FIG. 5D, the repellent device 1 is attached to the outer surface of the curtain elevating unit 41 with the rotation axis O turned sideways. As shown in FIG. 5 (E), when there is a space between adjacent windows 38, it can be fixed to the front surface of the wall 40 of the building in a forward-facing posture.

When the curtain 41 is rolled up to open the window 38 for ventilation and daylighting of the barn 29, it is assumed that wild birds infected with bird flu will fly in and infect the chickens in the barn (poultry house) 29 with bird flu. However, if the repellent device 1 is arranged as in the present embodiment, the wild birds do not approach the barn 29, so that the inside of the barn 29 can be opened with peace of mind.

In addition, when pigs are raised in the barn, wild birds contaminated with classical swine fever and classical swine fever, and wild birds with food contaminated with classical swine fever fly into the barn and infect pigs with hog cholera. However, if the repellent device 1 is arranged as in the present embodiment, the wild birds do not approach the barn, so that the inside of the barn 29 can be opened with peace of mind. The same applies to the packing section 35 and the warehouse section 37, and since the work can be performed with the

shutters

34 and 36 open while preventing the invasion of wild birds, the work can be performed with peace of mind while preventing the transmission of diseases to livestock.

In FIG. 6A, the repellent device 1 is fixed to the front surface and the rear surface of the descending wall 45 in a posture in which the rotation axis O is horizontal. In the example shown in FIG. 6B, it is fastened to the beam member 47 of the steel-framed building 46. In the case of a building that has a large space and often has open doors, it may fly inside and nest on the beam material 47 or joists. However, by arranging the repellent device 1 of the present embodiment, Birds flying inside the building 46 can be repelled.

In FIG. 6C, it is fixed to the horizontal frame material 49 fixed to the utility pole 48. Reference numeral 50 is an insulator, and reference numeral 51 is a transformer. There may be a problem that the birds on the power transmission line exchange food to energize and short-circuit, but by arranging the repellent device 1 of the embodiment on the frame material 49, the birds approach the utility pole 48. This can be prevented and short-circuit accidents can be prevented. Although not shown, it can be arranged in a power transmission tower as in

Patent Documents

2 and 3. Alternatively, it can be arranged as a frame material of a substation.

Harm of pigeons (mediation of feces, barking, and infectious diseases) has become a problem in middle- and high-rise apartment buildings. It is expected that pigeon damage can be prevented by attaching the repellent device 1 via the brackets) 53 and 54. The clamp body 53 of FIG. 6D has a U-shape so as to fit into the wall-shaped handrail 52 from above, and is fixed to the handrail 52 by screwing the bolt 55.

On the other hand, in FIG. 6E, the handrail (beam) 52 is made of a round pipe, and the clamp body 54 is of a holding method connected by a hinge, and a pair of clamp members are attracted by bolts 55 and nuts 56. As a result, the handrail 52 is strongly held. In the example of FIG. 6E, the repellent device 1 can be oriented in any direction.

(4). Embodiment of FIG. 7 FIG. 7 shows another example of the structure of the repellent device. Of these, in the second embodiment shown in (A), a pattern 57 imitating the eyeball of a hawk (or falcon, eagle, owl), which is a natural enemy of a general bird, is displayed on the surface of the feather 2. In the pattern 57, the round eyeball portion 57a in the center represents black eyes and is black, the donut portion 57b surrounding the eyeball portion 57a is yellow, and the elliptical portion 57c on the outside of the donut portion 57b is a small feather surrounding the eyeball. The color is gray, but the color scheme can be set arbitrarily. It is preferable to use a color scheme that stands out as much as possible. The pattern 57 may be drawn directly on the blade 2 or may be applied to a sticker (label) 58.

In the third embodiment shown in FIG. 7B, the upper surface 15c of the first flap 15 is formed in a sawtooth shape. In addition to or instead of forming the upper surface 15c in a serrated shape, it is also possible to bend and form a rib 57 having an outer pointed edge 17 on the end faces of the

flaps

15 and 16, as shown by the alternate long and short dash line. be.

In the fourth embodiment shown in FIG. 7C, the crease 14 is elongated in the same vertical direction as the rotation axis O, and therefore the blade 2 is located closer to the rotating body 3 with the crease 14 in between. It is composed of a third flap 59 and a fourth flap 60 located on the side far from the rotating body 3 with the crease 14 in between, and the fourth flap 60 has an acute-angled upper pointed edge 62 and an obtuse-angled upper flap 60. It forms 63 in the middle pointed edge and 64 in the lower pointed edge.

Also in the embodiment of FIG. 7C, both

flaps

59 and 60 are inclined with respect to the plane including the rotation axis O (and the plane orthogonal to the rotation axis O). Although the crease 14 is inclined with respect to the rotation axis O in FIG. 7C, the crease 14 and the rotation axis O may be formed in parallel.

(5). Example 8 (A) is a fifth embodiment embodying the seventh invention, in which the transparent layer 66 is formed into diagonal stripes on the outer surface (the surface visible from the bird) of the blade 2. It is provided. The transparent layer 66 is a resin layer, and can be formed by, for example, a transparent UV resin coating material. As shown in (B1), the posture of the blade 2 is formed to be flat and orthogonal to the rotation axis O, or as shown in (B2), it is inclined so as to be recessed outward. As shown in B3), various modes such as forming a chevron protruding outward can be adopted.

In this embodiment, the irradiated light is reflected in a complicated manner due to the refraction of the light by the transparent layer 66. Therefore, it can be said that each transparent layer 66 shines in a strange state and makes the bird have a strong fear. In the figure, the transparent layer 66 is formed in diagonal stripes, but it can also be formed in vertical stripes, horizontal stripes, a checkered pattern, or the like. It is also possible to form the transparent layer 66 over the entire outer surface.

In the sixth embodiment shown in FIGS. 7C and 7D, the group of the first square 67 and the group of the second square 68 are arranged in a grid pattern as the reflection promoting portion, and each of the

squares

67 and 68 is arranged. The entire outer surface of the group is covered with a transparent layer 69 from the outside. The first square 67 and the second square 68 are, for example, metal films, one of which can be set to silver and the other of which can be set to gold.

For the transparent layer 69, the above-mentioned transparent resin paint such as UV type can be used. Alternatively, a transparent resin sheet can be used as the transparent layer 69, and a group of

squares

67 and 68 can be coated on one side thereof by a method such as hot stamping, and this can be adhered to the blade 2 with an adhesive. In this embodiment, since different metal colors are reflected in a complicated manner, it can be said that strong threatening hardening can be exhibited against birds.

In the seventh embodiment shown in FIGS. 8 (E) and 8 (F), the first square 67, the second square 68, and the transparent third square 70 are arranged in a grid pattern. In this embodiment, the first square 67 and the second square 68 are formed on the transparent base sheet 71 by printing or the like, and the first square 67 and the second square 68 are covered with the transparent layer 69. The transparent layer 69 can be formed by printing, or a transparent resin sheet (or resin film) can be used. One of the first square 67 and the second square 68 can be set to silver and the other to gold.

In the eighth embodiment shown in FIG. 8 (G), the edge of the blade 2 is cut diagonally to form the inclined surface 72. The inclined surface 72 is also an example of the reflection promoting portion, and it is said that the sharp and angular shape of the blade 2 appears sharply by strongly reflecting light at the edge of the blade 2, and a strong threatening effect on birds can be exhibited. I can say.

In the ninth embodiment shown in FIG. 8 (H), in fixing the rotating body 3 or the blade 2 to the rotating shaft 73, a square portion 74 is formed on the rotating shaft 73, while the rotating body is not shown. By forming a square hole in the lid plate 12 or the blade 2 of 3 and fitting the square hole into the square portion 74, the rotating body 3 or the blade 2 is fitted into the rotating shaft 73 so as to be relatively non-rotatable, and a nut (bag nut) (not shown) is used. ) Is fixed. The nut can be quickly attached and detached with a power driver.

The problem with bird repellents is the reduction in effectiveness due to bird habituation. For example, when multiple types of feathers with different colors and shapes are used in multiple locations, only the feathers are used after a predetermined period of time. By exchanging, the running cost can be suppressed while preventing the birds from getting used to it. If the blade 2 can be easily attached and detached as in the structure of FIG. 8 (H), it is possible to inexpensively realize the use by exchanging only the blade.

In the tenth embodiment shown in FIG. 8 (I), a large number of installed bird repellent devices 1 are irradiated with light from an LED lamp 75 provided on a support or the like. With this configuration, strong reflected light is generated in each bird repellent device 1, so that the threatening effect on birds can be greatly improved. The LED lamp 75 is an example of a floodlight device.

Although the embodiments of the present invention have been described above, the present invention can be embodied in various ways. For example, blades having different sizes and shapes can be attached to one rotating body. It is also possible to configure one blade with three or more flaps. For example, a second flap and a third flap having different postures can be integrally provided on the first flap fixed to the rotating body.

When the blades are driven by a motor, it is also possible to arrange the motor inside a tubular case with a lid fixed to the base and fix the blades to the rotating shaft protruding from the lid of the case. In this case, extending the blades to the outside of the outer circumference of the case is preferable because it can be made compact.

As explained above, bird repellent devices are used in various parts such as station buildings, airport buildings, ground along the airport runway, orchards, fields, vegetable gardens, and frame materials that hang railroad overhead lines. Can be placed in. The bird repellent device can be placed on the ground, or it can be attached to a pole or frame standing on the ground. It is also possible to attach a bird repellent device to one pole in multiple stages.

The invention of the present application can be embodied as a bird repellent device. Therefore, it can be used industrially.

1 Bird repellent device 2 Feather 3 Rotating body 4 Support shaft 5 Base 8 Bearing 10 Screw as an example of rotating shaft 12 Lid plate 14 Fold 15 1st flap 16 2nd flap 17-21 Pointed edge 30 Repellent device is placed Facilities 44 Mediation members (brackets)
48 Utility poles on which repellent devices are placed 67, 68 Metal-colored squares as an example of a reflection-promoting part 69 Transparent layer as an example of a reflection-promoting part 75 LED lamps that make up a floodlight

Claims

A support arranged directly at the installation location or via an intermediary member, a rotating body rotatably held by the support, and a rotating body arranged around the axis of the rotating body and fixed to the rotating body. Equipped with multiple blades,
Each of the blades has a plurality of flaps bent through a crease, and each of the flaps is inclined with respect to a plane including a rotation axis and a plane orthogonal to the rotation axis, and at least one. The flap has a plurality of pointed edges protruding in a direction intersecting the rotation axis or in a direction parallel to the rotation axis.
Bird repellent device.
A base fixed directly to the installation location or via an intermediary member, a support shaft fixed to the base, a tubular rotating body arranged so as to surround the support shaft, and an axial center of the rotating body. It is equipped with a plurality of blades arranged around and fixed to the rotating body.
A lid plate is provided at one end of the rotating body on the side opposite to the base, and the lid plate is rotatably attached to the support shaft.
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. Has at least one pointed edge protruding in a direction crossing or parallel to the center of rotation.
Bird repellent device.
A support shaft arranged directly at the installation location or via an intermediary member, a tubular rotating body arranged so as to surround the support shaft, and a rotating body arranged around the axis of the rotating body. Equipped with multiple fixed blades,
A lid plate is provided at one end of the rotating body on the side opposite to the installation location, and the lid plate is rotatably attached to the support shaft.
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. Has at least one pointed edge protruding in a direction crossing or parallel to the center of rotation.
Bird repellent device.
A tubular rotating body having a lid plate at one end and a plurality of blades arranged around the axis of the rotating body and fixed to the rotating body are provided, and the lid plate of the rotating body is the rotating body. While fixed to the rotating shaft located inside the
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. Has at least one pointed edge protruding in a direction crossing or parallel to the center of rotation.
Bird repellent device.
Each of the blades has two flaps that are bent across the crease that is long in the direction intersecting the rotation axis of the rotating body, and is located on the side far from the base across the crease. The first flap is formed with the sharp edge portion having a sharp angle protruding in the direction intersecting the rotation axis when viewed from the direction of the rotation axis of the rotating body.
The bird repellent device according to any one of claims 1 to 4.
A support body arranged directly at the installation location or via an intermediary member, a rotating body rotatably provided on the support body, and a plurality of rotating bodies arranged around the axis of the rotating body and fixed to the rotating body. Equipped with a piece of metal plate blade,
Each of the blades has an outer surface facing the side opposite to the installation location, and the outer surface is provided with a reflection promoting portion that irregularly reflects or refracts and reflects the received light.
Bird repellent device.
It is equipped with a bird basic device and a floodlight device that irradiates LED light toward the bird basic device.
The bird basic device includes a support arranged directly at an installation location or via an intermediary member, a rotating body rotatably provided on the support, and the rotating body arranged around the axis of the rotating body. Equipped with multiple wings fixed to the body,
Each of the blades is composed of a plurality of flaps bent through creases, and at least one of the flaps is inclined with respect to a plane including a rotation axis of the rotating body. Has at least one pointed edge protruding in a direction crossing or parallel to the center of rotation.
Bird repellent equipment.