JP7118924B2 - Bird scare device and bird scare method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bird scare device and a bird scare method for scare birds away in order to prevent feeding damage, fecal damage, and the like caused by flying birds.

BACKGROUND ART Conventionally, scarecrows, clappers, and the like have long been used in agriculture as so-called bird scare to ward off birds that are harmful to humans. In recent years, round balloons with large eyeballs drawn on them, as well as discs and tape that reflect light, have been used. Also, in areas where noise is not a problem, such as airports and mountainous areas, methods using the sound of blank hunting guns and gas explosions have been used for a long time. In addition, new methods such as installing a magnet, which is said to disturb the bird's body clock, and outputting the recorded bird's distress call and alarm call from the speaker are also being tried.

However, these methods were not effective in repelling birds because the birds quickly got used to them. For this reason, there has been proposed a method of repelling birds more effectively by combining the motion of a movable object and sound to appeal to both the bird's sight and hearing (see, for example, Patent Document 1).

JP-A-2006-61138

However, the method described in Patent Document 1 is mainly intended to drive away birds visually by the motion of the rod that oscillates irregularly, and the audible sound is produced by the oscillating portion and the stopper. Since it is caused by the collision sound of the birds, there is a problem that the threatening effect of the sound is low and the birds are easily accustomed to it.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bird scare device and a bird scare method that can effectively scare away birds.

The bird scare device of the present invention comprises: a hitting portion arranged at a place where a bird is to be driven away; a hitting position where a hitting surface on one side in a thickness direction is close to or in contact with the hitting portion; a band plate-shaped striking part arranged so as to be reciprocally movable between separated positions separated from the struck part; and a driving part that collides with the hit part.

According to the bird scare device of the present invention, the band plate-shaped striking part can be vibrated in the thickness direction at the time of collision, so that a louder sound can be echoed around. This makes it possible to enhance the audible scare effect, so that the bird can be effectively driven away along with the visual scare effect of the action of the striking part.

Moreover, in the bird scare device of the present invention, it is preferable that the hit part has a hit surface that approaches or touches the entire longitudinal direction of the hitting part when the hitting part is in the hitting position.

According to this, the hitting surface as a whole collides with the hit surface to generate sound, so that the sound can be made to reverberate louder.

Moreover, in the bird scare device of the present invention, it is preferable that the striking part and the struck part are made of vertically split bamboo.

According to this, the peculiar bending and vibration of bamboo can make a sound with a high frightening effect louder.

Further, in the bird scare device of the present invention, the drive section has an arm that swings about a predetermined swing center, and the striking section is in a posture whose longitudinal direction is perpendicular to the axial direction of the swing center. One end in the longitudinal direction is preferably connected to the distal end of the arm.

According to this, it is possible to cause the hitting part to collide with the hit part while being elastically deformed so as to bend, and to vibrate so as to bend after the collision, so that the sound can be made to reverberate louder.

Further, the bird scare device of the present invention comprises a substrate portion to which the driving portion is fixed, and the hit portion is fixed to the substrate portion or is composed of a part of the substrate portion. is preferred.

According to this, the hitting part, the striking part and the driving part can be easily transported as one unit and easily installed in a place effective for repelling birds, such as the top of a tree where birds gather. be able to.

Moreover, in the bird scare device of the present invention, it is preferable that the longitudinal dimension of the hitting part is 300 mm or more and 1000 mm or less.

According to this, it is possible to generate an effective sound by moderate bending and vibration of the striking part, and to sufficiently exhibit the threatening effect of the movement of the striking part.

Further, the bird scare device of the present invention controls to operate the driving section so that the hitting section collides with the hit section at preset time intervals between a preset start time and an end time. It is preferable to have a part.

According to this, for example, by operating the striking part only during times when birds gather, and by periodically operating the striking part, it is possible to scare off the once-fed birds every time they return. As a result, birds can be repelled more effectively.

Also, the method of scare away birds of the present invention is characterized by using the bird scare device of the present invention.

According to the bird scare method of the present invention, since the bird scare device of the present invention can enhance the audible scare effect, the bird can be effectively scare away as well as the visual scare effect by the movement of the striking part. can be done.

Further, in the method for driving away birds of the present invention, it is preferable that the bird scare device is installed so that the striking part is positioned above the middle part of the tree or building in the height direction.

According to this, it is possible to generate a sound by operating the striking part at a place close to the bird, so that the scare effect can be enhanced.

According to the bird scare device and the bird scare method according to the present invention, it is possible to effectively scare away birds.

It is the schematic which showed the use condition of the bird scare device concerning one Embodiment of this invention. It is the schematic which showed the internal structure of a drive part. FIG. 3 is a cross-sectional view seen from the A direction arrow in FIG. 2 ; It is the figure which showed the operation|movement of the striking part by a drive part. FIG. 11 is a schematic diagram showing another installation example of the bird scare device;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an external perspective view showing a usage state of a bird scare device 1 according to one embodiment of the present invention.

As shown in the figure, the bird scare device 1 is installed in a place where it is desired to scare away birds, such as a tree where birds fly. The bird scare device 1 includes a substrate portion 10 fixed to a tree, a hit portion 20 fixed to the substrate portion 10, a hitting portion 30 arranged close to the hit portion 20, and fixed to the substrate portion 10. and a control section 50 provided separately from the substrate section 10 .

The substrate portion 10 is a strip-shaped member that supports the hit portion 20 and the driving portion 40 . In the bird scare device 1, by providing such a substrate part 10, the hit part 20, the hitting part 30 and the driving part 40 can be transported as one unit and can be easily installed, for example, on a branch of a tree. is possible.

The substrate portion 10 is configured in a simple flat plate shape, and can be easily fixed to a branch of a tree or the like using a known fixture 12 such as a fixing belt, a wire, or a binding band. . Although the material of the substrate part 10 is not particularly limited, it is preferably made of a lightweight material such as wood or aluminum alloy considering that the board part 10 is installed at a relatively high position such as a tree.

When the hitting part 20 collides with the hitting part 20, the hitting part 30 and the hitting part 30 generate a collision sound that audibly frightens the bird. The hit part 20 is a strip-shaped member that is shorter (smaller in the longitudinal direction) and narrower (smaller in the width direction) than the substrate part 10 . The hit part 20 has one side surface in the thickness direction facing the substrate part 10 side and the hitting surface 21, which is the other side surface in the thickness direction, facing the hitting part 30 side. It is fixed to the substrate section 10 by a fixture 22 .

The material of the hit part 20 is not particularly limited, and various known materials such as wood, resin, metal, or fiber-reinforced composite material can be adopted. However, it is preferable that the material of the hit part 20 is combined with the material of the hitting part 30 described later to generate a sound with a higher threatening effect. In view of this point, in the present embodiment, the hit part 20 is made of vertically split bamboo.

The hitting part 30 is driven by the driving part 40 and collides with the hit part 20 to generate a collision sound together with the hit part 20 . The striking part 30 also has the function of visually frightening the bird by swinging toward and away from the struck part 20 . The hitting part 30 is a strip-shaped member that is shorter (smaller in the longitudinal direction) and narrower (smaller in the width direction) than the hit part 20 . The striking part 30 has one end in the longitudinal direction fixed to the driving part 40 by screwing with the striking surface 31, which is one side in the thickness direction, facing the struck part 20 side.

As shown in FIG. 4, the hitting portion 30 is arranged at a hitting position P1 where the hitting surface 31 is in a state of being close to or in contact with the hitting surface 21 of the hitting portion 20 in a normal state. The hitting surface 31 does not necessarily have to be in contact with the hit surface 21 at the hitting position P1. Then, the striking part 30 is driven by the drive part 40, and after temporarily moving to the separation position P2 where the striking surface 31 is separated from the striking surface 21, the striking surface 31 returns to the striking position P1, whereby the striking surface 31 becomes the object to be struck. It collides with the surface 21 and generates a collision sound with the hit part 20.例文帳に追加

In this embodiment, the striking part 30 is configured in a strip shape, and the striking surface 31, which is one side surface in the thickness direction, collides with the striking surface 21 of the striking part 20, thereby making the impact more threatening. It is possible to generate a highly effective sound. That is, by causing the surfaces facing each other to collide with each other, the amount of air displaced at the time of collision can be increased, and the striking part 30 can be vibrated in the thickness direction after the collision, so that a louder sound can be heard in the surroundings. It is possible to

Particularly in the present embodiment, the hitting part 20 is configured to be longer than the hitting part 30 so that the entire longitudinal direction of the hitting surface 31 approaches or touches the hitting surface 21 when the hitting part 30 is at the hitting position P1. By arranging at , the hitting surface 31 as a whole collides with the hitting surface 21 to generate sound, so that it is possible to make the sound louder. Further, in the present embodiment, since the hit part 20 is configured in a strip shape, it is possible to make the sound more reverberating by the vibration of the hit part 20 in the thickness direction after the collision.

The material of the striking part 30 is not particularly limited, and various known materials such as wood, resin, metal, or fiber-reinforced composite material can be used. In this embodiment, the hitting part 30 is made of vertically split bamboo so as to generate a sound with a higher threatening effect. In other words, bamboo is a material having a unique elasticity, and by using vertically split bamboo as the striking part 30, it is possible to make the sound of a frequency band with a high frightening effect louder due to the bending and vibration unique to bamboo. Become. Furthermore, in this case, the hitting part 20 is also made of vertically split bamboo, so that the peculiar bending and vibration of bamboo act synergistically, and more effective sound can be generated.

The bamboo that constitutes the striking part 30 may be cut into a suitable cross-sectional shape after being vertically split, or may be in a shape as it is vertically split. That is, the cross-sectional shape of the hitting portion 30 perpendicular to the longitudinal direction may be a semi-cylindrical shape, a rectangular shape, or an arc shape. The same applies to the bamboo that constitutes the hit part 20 . However, in order to generate a more effective sound, it is preferable that the surface of the bamboo on the skin side is used as the striking surface 31 and the striking surface 21 while being convex.

Each dimension of the striking part 30 is not particularly limited, but in order to generate an effective sound by moderate bending and vibration and to sufficiently exhibit the threat effect by the action, the longitudinal dimension is 300 mm. It is preferably 1000 mm or more, and more preferably 400 mm or more and 900 mm or less. Similarly, the width direction dimension of the striking portion 30 is preferably 40 mm or more and 60 mm or less, and more preferably 20 mm or more and 40 mm or less. Similarly, the thickness of the striking portion 30 is preferably 6 mm or more and 15 mm or less, more preferably 7 mm or more and 10 mm or less.

Each dimension of the hit part 20 is not particularly limited, either. It is preferably equal to or greater than the directional dimension. Similarly, the widthwise dimension of the hit part 20 is preferably equal to or greater than the longitudinal dimension of the hitting part 30 . Also, the thickness of the hit portion 20 is preferably equal to the thickness of the hitting portion 30 .

Also, the hit part 20 and the hitting part 30 may change in thickness, width dimension, or cross-sectional shape along the longitudinal direction.

The drive unit 40 is fixed to the substrate unit 10 while being covered with an appropriate waterproof cover 60 . FIG. 2 is a perspective view showing the internal structure of the drive unit 40 by omitting the description of a part of the configuration, and FIG.

As shown in these figures, the driving unit 40 includes a box-shaped housing 41, a support shaft 42 arranged in the housing 41, and an arm 43 arranged to swing around the support shaft 42. , two biasing members 44 arranged in the housing 41 so as to bias the arm 43 in one of the swinging directions, a motor 45 and a reduction gear 46 housed in the housing 41, and a reduction gear 46 A fan-shaped rotating member 47 connected to the output shaft 46a of the rotating member 47, a cylindrical pin 48 projecting from the rotating member 47, and a switch 49 arranged near the rotating member 47. there is

The housing 41 is configured by combining flat plates, and accommodates and protects each part of the drive unit 40 . A pedestal 41a is connected to the housing 41. The pedestal 41a is formed by bending a flat plate into a slightly open U-shape. The frame 41a is provided with through holes 41b through which fasteners such as wires and fixing belts are passed. reference).

The support shaft 42 supports the arm 43 so that it can swing. The support shaft 42 is arranged between two flat support members 41d erected in the housing 41 so as to connect them. In addition, in FIG. 2, illustration of the support member 41d on the front side of the drawing is omitted.

The arm 43 is a portion to which the striking part 30 is connected. The arm 43 includes a tray-shaped base portion 43a, a flat plate portion 43b connected to the base portion 43a by screw fastening, and a skirt portion 43c sandwiched between the base portion 43a and the flat plate portion 43b (see FIGS. 3 and 4). See FIG. 4).

The base portion 43a is formed in a shape in which a portion that interferes with the speed reducer 46 and the rotating member 47 is notched. A support shaft 42 is inserted through the base portion 43a so that the arm 43 can swing around the center of the support shaft 42 as a swing center. Further, the arm 43 is arranged in a state in which a portion of the base portion 43a and the flat plate portion 43b are exposed from an opening 41e (see FIG. 3) projecting from the housing 41 on the side of the hit portion 20. As shown in FIG.

One longitudinal end of the striking portion 30 is connected to the tip portion of the flat plate portion 43b by screwing. The striking portion 30 connected to the flat plate portion 43b assumes a posture in which the longitudinal direction is perpendicular to the axial direction of the support shaft 42 (that is, the axial direction of the swing center). Further, the flat plate portion 43b is bent in a V-shape so that the hitting portion 30 at the hitting position P1 is substantially parallel to the hit portion 20. As shown in FIG. The skirt portion 43c is configured in a skirt shape that is open on the side of the base portion 43a, and is provided so as to block the opening 41e of the housing 41c.

The biasing member 44 biases the arm 43 in the direction in which the striking part 30 connected to the arm 43 moves toward the striking position P1. As a result, the striking portion 30 is maintained at the striking position P1 in a normal state. The biasing member 44 is composed of a torsion coil spring, and the support shaft 42 is inserted through the coil portion, and is attached between one of the reinforcing members 41f connecting the two support members 41d and the bottom portion of the base portion 43a of the arm 43. Arranged to generate force.

The motor 45 rotates the rotating member 47 and is fixed to the speed reducer 46 with its own output shaft connected to the input shaft of the speed reducer 46 . The speed reducer 46 reduces the rotational power of the motor 45 by means of an internal gear train and outputs it from the output shaft 46a to the rotating member 47, and is fixed to the support member 41d (see FIG. 4) on the back side of the drawing. ing. An output shaft 46 a of the speed reducer 46 is arranged substantially parallel to the support shaft 42 .

The rotating member 47 is driven by the motor 45 to rotate in the direction of the arrow in FIG. The pin 48 protrudes from the rotating member 47 in a direction substantially parallel to the support shaft 42 . is arranged to press against the That is, the arm 43 is pressed by the pin 48 so that the striking portion 30 swings in the direction toward the separated position P2.

The switch 49 stops the motor 45 when the rotating member 47 makes about one rotation. The switch 49 detects that the rotating member 47 has made about one rotation based on the rotational position of the outer peripheral surface 47a of the rotating member 47, and cuts off the power supply to the motor 45 to stop it. The switch 49 is also reset by disconnecting the power supply from the control unit 50 to the driving unit 40, thereby enabling the motor 45 to start again. In this embodiment, by providing the switch 49, the control section 50 can be configured simply.

4A and 4B are diagrams showing the operation of the striking part 30 by the driving part 40. FIG. When the controller 50 activates the motor 45 to rotate the rotating member 47, the pin 48 pushes the end of the base 43a of the arm 43 to move the arm 43 in the direction of the arrow. By rocking, the striking part 30 is moved from the striking position P1 to the separated position P2. Substantially at the same time that the striking portion 30 reaches the separated position P2, the pin is removed from the end of the base portion 43a of the arm 43. As shown in FIG. Then, the arm 43 vigorously swings in the opposite direction due to the urging force of the urging member 44 , moving the striking part 30 to the striking position P<b>1 again to collide with the struck part 20 .

As described above, the striking part 30 is connected to the arm 43 in such a manner that the longitudinal direction thereof is perpendicular to the axial direction of the support shaft 42. Therefore, the striking part 30 is elastically deformed to reach the striking position P1. will have to move. Therefore, even if the hitting surface 31 is not necessarily in contact with the hitting surface 21 at the hitting position P1, the hitting surface 32 can collide with the hitting surface 21 when returning from the separated position P2 to the hitting position P1.

When the hitting surface 32 collides with the hit surface 21, a sound that has a high frightening effect on birds is generated as described above. At this time as well, since the striking part 30 can vibrate in a bending manner, a louder sound can be echoed around. In addition, the action of the striking part 30 moving relatively slowly from the striking position P1 to the distant position P2 and then rapidly returning to the striking position P1 is sufficiently appealing to the bird's eyesight, and this movement also effectively strikes the bird. It is possible to threaten

Returning to FIG. 1 , the control section 50 is electrically connected to the drive section 40 via a cable 51 . The control unit 50 is configured by combining existing parts, and includes a power source 52 , a breaker 53 , a 24-hour time switch 54 , a timer 55 and a relay 56 .

The power supply 52 is a DC power supply, and supplies electric power to each part of the drive section 40 and the control section 50 . The breaker 53 is for disconnecting the control unit 50 from the power source 52 in the event of an abnormality or the like. The 24-hour time switch 54 connects the power source 52, the timer 55 and the relay 56 at a preset start time, and disconnects the power source 52, timer 55 and relay 56 at a preset end time.

The timer 55 switches ON/OFF of the relay 56 at preset intervals. The timer 55 of this embodiment is set to repeat the operation of turning on the relay 56 for 7 minutes and 30 seconds and then turning off the relay 56 for 7 minutes and 30 seconds. The relay 56 connects the power source 52 and the drive unit 40 when it is on, and disconnects the power source 52 and the drive unit 40 when it is off.

With these configurations, the control unit 50 causes the 24-hour time switch 54 to connect the power supply 52, the timer 55, and the relay 56 at a preset start time (for example, 15:00). This causes the timer 55 to start operating and turn on the relay 56 . Then, electric power is supplied from the power supply 52 to the drive unit 40 , and the motor 45 rotates to rotate the rotating member 47 . As a result, the striking part 30 reciprocates between the striking position P1 and the separated position P2 to generate a collision sound.

After that, the switch 49 stops the motor 45 after the rotating member 47 has made about one rotation. Therefore, the reciprocating movement of the striking part 30 and the generation of the collision sound are performed only once. At this time, the relay 56 is still on, but the switch 49 prevents the motor 45 from rotating.

The timer 55 turns off the relay 56 7 minutes and 30 seconds after turning on the relay 56 . Then, since the power supply to the drive unit 40 is cut off, the switch 49 is reset and the motor 45 can be started when power is supplied next time. Then, the timer 55 turns on the relay 56 again 7 minutes and 30 seconds after turning off the relay 56, and the above contents are repeated thereafter.

As a result, the striking unit 30 operates at intervals of 7 minutes and 30 seconds×2=15 minutes to generate impact sounds. Then, when the preset end time (for example, 18:00) comes, the 24-hour time switch 54 cuts off the power supply 52, the timer 55 and the relay 56. FIG. As a result, the timer 55 and the drive unit 40 are stopped due to the cutoff of power supply.

In this way, the control unit 50 can operate the hitting unit 30 and cause it to collide with the hit unit 20 only during a predetermined time period, for example, between 15:00 and 18:00. It is possible to operate the hitting part 30 only during the time period when the flies gather in the roadside trees in order to drive them away effectively and efficiently.

In addition, the control unit 50 operates the hitting unit 30 at predetermined time intervals. It is possible to drive away birds effectively because it can be driven away every time it comes. In addition, in the present embodiment, the time interval for operating the hitting unit 30 is set to 15 minutes, but it goes without saying that the time interval is not limited to this.

Next, a method for installing the bird scare device 1 will be described.

FIG. 5 is an external perspective view showing another installation example of the bird scare device 1. As shown in FIG. As shown in the figure, the bird scare device 1 can also be applied to man-made buildings such as street light poles, utility poles, signal poles, towers, houses, warehouses, buildings, bridges, etc., in addition to trees. may be installed.

Also, in order to effectively appeal to the hearing and sight of the bird, it is preferable that the hit part 20 and the hitting part 30 are arranged as close as possible to the bird to be repelled. Therefore, the substrate part 10 is preferably installed at the top of a tree or building, and the substrate part 10 is positioned so that at least the hitting part 30 is positioned above the middle part of the tree or building in the height direction. It is preferable to install

Furthermore, in order to ensure that the movement of the striking part 30 is visually recognized by the bird and further enhance the scare effect, it is preferable to install the substrate part 10 so that the tip of the striking part 30 faces upward. It is preferable to install the substrate portion 10 so that the is located above the hit portion 20 .

Although the embodiments of the present invention have been described above, the bird scare device 1 and the method of driving away birds according to the present invention are not limited to the above-described embodiments, and can be used without departing from the gist of the present invention. Of course, various modifications can be made.

For example, the shape of the substrate section 10 and the shape and arrangement of each part of the driving section 40 are not limited to those shown in the above embodiments, and various known shapes and arrangements can be adopted. Further, the drive unit 40 is not limited to one that uses the motor 45, and may use other actuators. Moreover, the control unit 50 may be configured by a computer, and may be fixed to the substrate unit 10 .

Moreover, the actions and effects shown in the above embodiments are merely enumerations of the most preferred actions and effects resulting from the present invention, and the actions and effects of the present invention are not limited to these.

1 bird scare device 10 substrate part 20 hit part 21 hit surface 30 hitting part 31 hitting surface 40 driving part 50 control part 43 arm P1 hitting position P2 separating position

Claims (7)

a hit part that is arranged in a place where the bird is to be driven away;
A band plate arranged so as to be able to reciprocate between a striking position where the striking surface on one side in the thickness direction is close to or in contact with the struck portion and a separated position where the striking surface is separated from the struck portion. a shaped striking part;
a drive unit that reciprocates the hitting part between the hitting position and the separated position to cause the hitting surface to collide with the hit part ;
The drive section includes an arm that swings about a predetermined swing center, and the striking section has a longitudinal direction orthogonal to the axial direction of the swing center, and one end in the longitudinal direction of the arm is connected to the tip of the
A substrate section to which the driving section is fixed,
The hit part has a strip-like shape extending longer than the hitting part, and is fixed to the base plate or is composed of a part of the base plate,
The bird scare device, wherein the hit part has a hit surface that comes close to or touches the entire longitudinal direction of the hitting part when the hitting part is in the hitting position. 2. A bird scare device according to claim 1, wherein said striking part and said struck part are made of vertically split bamboo. The arm has a base portion and a flat plate portion connected to the base portion and bent in a V-shape, and one longitudinal end of the hitting portion is connected to the tip portion of the flat plate portion. 3. A bird scare device according to claim 1 or 2. A bird scare device according to any one of claims 1 to 3, wherein the striking part has a longitudinal dimension of 300 mm or more and 1000 mm or less. A control unit for operating the driving unit so as to cause the striking unit to collide with the hit unit at preset time intervals between a preset start time and an end time. 5. A bird scare device according to any one of paragraphs 1-4 . A method for shunning birds, characterized by using a bird scare device according to any one of claims 1 to 5 . 7. The method for driving away birds according to claim 6 , wherein the bird scare device is installed so that the striking part is positioned above the middle part of the tree or building in the height direction.

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