JPH0731355A - Plate for controlling insect and bird - Google Patents

Abstract

PURPOSE:To surely and effectively control insects and birds for a long period of time by irregularly reflecting strong light in a place for use. CONSTITUTION:This plate 10 for controlling insects and birds is rotatably hung at a specific height in a place for use such as paddy field, farmland or an orchard with each hanging tool 11 and light is irregularly reflected to prevent the insects and birds from approaching an object of protection such as field crops by reflecting the light. An integral stainless steel flat platy material having front and back surfaces which are the reflecting surfaces having a high reflectance is bent with a bending line as a boundary. The distance from the bending line in a part above the bending line to the upper end thereof is shorter than that from the bending line in a part below the bending line to the lower end thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an insect / birdproof plate which is rotatably hung at a predetermined height at a place of use and reflects light to prevent insects / birds from approaching a subject to be protected. Regarding

[0002]

2. Description of the Related Art In farmlands such as fields and orchards, insects and birds often impede good growth of crops. For example, many viral diseases occur in vegetables, and this viral disease lowers the productivity of vegetables and causes a significant decrease in yield, but most viral diseases are said to be transmitted by aphids.

Therefore, aphid control is effective as a means for controlling aphid-transmitted viral diseases. Conventionally, aphids have been controlled by spraying insecticides and covering with ginseng. However, it is difficult to completely control aphids, and ginseng also causes runner generation and weeding disorders, and easily causes diseases.

In recent years, it has been known that aphids have a habit of repelling light, particularly silvery light, and a method for controlling aphids by using white or silvery film mulch to prevent damage has been established (Kanto Higashiyama Pest Research Group Annual Report). 25th collection; published in 1978). However, the film mulch for controlling the aphid has problems that it is expensive and that it becomes ineffective when soiled.

[0005] By the way, there are some types of birds that feed on agricultural crops. In particular, crows pick the seeds immediately after sowing, or pick the crops immediately before harvesting to inhibit the growth of agricultural crops. It is a harmful bird that reduces the product value. On the other hand, the farmers who grow lettuce, eggplant, etc. in the house suffer the damage that the crow stays on the roof of the house and breaks the vinyl sheet with its claws. Damage to crops is severe in the area where crows are abnormally occurring, and it is an urgent task to control the damage.

[0006] Conventionally, in order to protect agricultural products from harmful birds, birds have been set up on farmland, and eye-catching bird eye-catchers colored in black, red, yellow, etc. are hung on ropes and eaves of buildings. Was driving away.

However, none of the above-mentioned methods of driving away the harmful birds to protect the agricultural products from the harmful birds loses its effect once the birds become accustomed to them, and is not an effective means for controlling birds. In addition, gold and silver tapes and strips were sometimes hung on a rope so that they could flutter in the wind.
The light reflection was weak and it was not effective for chasing birds.

On the other hand, the film mulch described above may be used to prevent damage to birds, but it is hard to say that the film mulch is sufficient to effectively dispel birds.
Further, as described above, the film mulch has the problems that it is expensive and that the control effect is deteriorated when it becomes dirty. As described above, conventionally, there has been no device capable of reliably controlling insects and birds for a long period of time.

[0009]

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and diffuses strong light diffusely at the place of use to reliably and effectively protect insects and birds for a long period of time. It is an object to provide an insect-proof / bird-prevention plate that can be controlled.

[0010]

In order to solve the above-mentioned problems, the present invention has the following constitution. The present invention is an insect-proof / bird-prevention plate that is rotatably suspended at a predetermined height by a suspending member and reflects light to prevent insects / birds from approaching the object to be protected. The flat plate material, whose front and back surfaces are reflective surfaces with high reflectance, is bent at the folding line, and the distance from the folding line to the upper end when hanging is the same. It is a pest-proof and bird-prevention plate that is shorter than the distance from the line to the lower end.

Further, in the present invention, a portion projecting to the center portion in the width direction is formed at the upper end portion when the plate is suspended, and the suspension is provided at the upper end portion including this projecting portion. A hole for fastening the lowering member may be provided, and a cut portion may be formed inward in the left-right direction along the bending line from the end portion along the bending line.

In the present invention, the flat plate material may be made of stainless steel whose front and back surfaces are mirror-finished. Further, in the present invention, the angle between the one surface and the other surface sandwiching the bending line of the bent flat plate material may be 135 ° to 150 °. Also,
In the present invention, the plate can be suspended above the object to be protected within a range of 1 to 4 m from its upper end.

[0013]

In the insect / bird-prevention plate of the present invention, a flat plate material having front and back surfaces which are reflective surfaces of the latter half is bent at a folding line. Therefore, by reflecting the light well on the front surface and the back surface and bending at the bending line as a boundary, the incident light is reflected by the two surfaces sandwiching the bending line, and the reflected light with respect to the incident light is efficiently reflected. In addition, it is possible to radiate (diffuse reflection) in various directions.

Since the distance from the bending line to the upper end is shorter than the distance from the bending line to the lower end when hanging, the hanging member (for example, the arm bar extending from the pillar 11a shown in FIG. 3). 11b and linear body 1
1c), the portion below the fold line has a large area, and one surface thereof faces slightly obliquely upward and the other surface faces slightly downward. Since the sunlight in the daytime is directed to the ground almost obliquely, the plate of the present invention efficiently radiates strong reflected light to a wide area in the oblique up and down directions including the substantially horizontal direction against this sunlight. be able to.

Further, since the plate is bent, when it is fanned by the wind, it rotates irregularly to emit reflected light in all directions and diffusely reflect light in various directions. As described above, since the plate can efficiently and strongly diffuse incident light such as sunlight, it is possible to reliably control insects such as aphids and birds such as crows in places of use such as farmland. In addition, the diffused reflection appears to emit strong light intermittently when viewed from a certain position, and has a great effect of stimulating insects and birds to drive them away.

In the present invention, a portion projecting to the center portion in the width direction is formed at the upper end when the plate is suspended, and the suspension is provided at the upper end including the projecting portion. If a hole for fastening the lowering member is provided, the plate can be hung in a well-balanced manner by fastening the hanging member to the hole.

Further, at the left and right ends along the bending line,
If the notch is formed inward from the end along the bending line, the pressing force when the plate is bent by the press can be reduced. Further, if the flat plate material is made of stainless steel whose front and back surfaces are mirror-finished, it will not rust even if it is used outdoors for a long time, and it is hard to get dirty and its reflectance is hard to drop. Therefore, once installed, no maintenance or replacement is required thereafter, the workload is not applied, and it is economical.

The angle between one surface and the other surface of the bent flat plate material sandwiching the bending line is 135 ° to 15 °.
It can be 0 °. It is this bending angle that was most efficiently controlled by the inventor of insects and birds. Further, the plate of the present invention can be hung above the object to be protected within a range of 1 to 4 m from its upper end.
If you use it like a tail, the control of insects and birds is great.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view of a bird / bird plate (hereinafter simply referred to as a plate) according to an embodiment of the present invention, in which (a) is a plan view, (b) is a front view, and (c) is (B)
2 is a vertical cross-sectional view taken along the line AA of FIG. FIG. 2 is a perspective view of this plate. In the following explanation,
Top / bottom means the top / bottom when the plate is suspended.

As shown in FIGS. 1 and 2, the plate 10 is provided with a suspender 11 (shown in detail in FIG. 3).
It is rotatably hung at a predetermined height in places such as fields and orchards to reflect light and prevent insects and birds from approaching the object to be protected, and the front and back surfaces are highly reflective. The integral flat plate material of stainless steel, which has become the reflecting surface of the index, is bent at the folding line 12 as a boundary.

Further, when the plate 10 is suspended, the distance H ₁ from the folding line 12 to the upper end 13a of the portion above the folding line 12 (hereinafter, the upper side 10a) is the folding line 12 when the plate 10 is suspended. It is shorter than the distance H ₁ from the bending line 12 of the lower portion (hereinafter referred to as the lower piece 10b) to the lower end 13b (H ₁ <
H ₂ ). Further, both the upper piece 10a and the lower piece 10b are formed in a substantially quadrangular shape. Furthermore, each piece 1
Regarding the widths of 0a and 10b, the width W ₁ of the upper piece 10a is larger than the width W ₂ of the lower piece 10b (W ₁ > W ₂ ), and each corner is chamfered.

Further, the plate 10 is formed with a portion 14 projecting at the center in the width direction at the upper end portion (upper end portion of the upper piece 10a) when the plate 10 is suspended.
A hole 14a for fastening the suspending tool 11 is formed in the upper end portion including the protruding portion 14, and at the same time, the left and right ends along the bending line 12 extend from the end portion to the bending line. Notch 15 along 12
Are formed. The notch 15 allows a small bending force at the time of bending and prevents burr from appearing at the bent end.

The flat plate material is made of stainless steel whose front and back surfaces are mirror-finished, for example, SU.
A double-sided polished version of S804 can be used. As the flat plate member, a resin plate member, for example, a plate member having a high reflectivity such as a mirror-finished surface obtained by vapor-depositing metal such as aluminum on plastic can be used. In this way, the resin plate material can be easily manufactured and is inexpensive, and since it is lightweight, it can be easily attached. Further, when a resin plate material is used as the material, a flat plate material may be directly bent to form a plate.

Further, the angle between the surface of the upper piece 10a (corresponding to one surface) and the surface of the lower piece 10b (corresponding to the other surface) sandwiching the bending line 12 of the bent flat plate material is 135 ° to 150 °. And is preferably 135.49 °. Of course, it can be formed with an appropriate bending angle if necessary.

It goes without saying that the plate 10 can be appropriately selected in dimensions such as width, length and thickness. For example, if the width W ₁ of the upper piece 10a is
The width W _{2 of} b is made larger by about 10 mm, and the length H ₂ of the lower piece 10b is made larger than its width W ₂ .

The plate 10 of the embodiment is constructed as described above and is hung from the hanging tool 11 as shown in the example of FIG. 3 to be installed in a field such as a field or an orchard. In this suspending tool 11, a brace 11b of an appropriate length is fixed at right angles to a vertically standing pillar 11a at a place of use, and a freely twistable linear body 11c is lowered at the tip of this brace 11b. It is a thing. The plate 10 is fastened to the lower end of the linear body 11c, and is suspended by the suspending tool 11 at a position Lm above the object to be protected. As the linear body 11c, a strong thread such as a fishing line or a string made of resin can be applied.

If the linear members 11 are connected via a rotatable joint, the linear member 11c may be a wire or a metal wire which is not twisted. Further, the linear body 11c may be directly tied to the hole 14a of the plate to be fastened, and the collar 16 may be provided in the hole 14a so as to cover the opening from the inner circumference of the hole 14a as shown in FIG. 4 (a). Can be attached. In this way, the linear body 11c is not flawed without chamfering the inside of the hole 14a. Also, FIG. 4B
As shown in FIG. 1, the ring-shaped metal fitting 1 is provided between the linear body 11c and the hole 14a.
7 can be inserted and fastened. In addition, hanging tool 1
In addition to the above-mentioned structure, 1 can be configured such that a plurality of columns are erected, a rope or the like is stretched between them, and a plurality of plates are hung on the rope or the like at appropriate intervals.

The plate 10 of the embodiment is suspended from the suspending tool 11 and installed at an outdoor use place as shown in FIG. The installation is most effective within a range of 1 to 4 m from the top of the crop. Of course, if 4 m or more is effective, it can be installed at 4 m or more.

Since the surface and the back surface of the plate 10 are formed as mirror surfaces, most of the sunlight applied to the plate 10 is efficiently reflected and strong reflected light is emitted. in this case,
Since one surface of the lower piece 10b is directed obliquely upward, the lower piece 10b widely reflects the sunlight radiated in an oblique direction including the horizontal direction. Moreover, since the bent upper piece 10a further reflects a part of the reflected light of the lower piece 10b or directly reflects the sunlight on the back surface, the sunlight can be efficiently reflected and a strong reflected light is emitted.

Further, since the plate 10 is rotatably suspended by the suspending tool 11, it rotates by the wind and emits reflected light in all directions, and since it is bent, it is agitated by the wind. When it rotates, it rotates well and its rotation becomes an irregular circular motion, so that it diffusely reflects incident light and emits reflected light in various vertical directions. If you look at this reflected light from a certain position, it seems that strong light is emitted intermittently, and the effect of stimulating insects and birds to drive them away is great.
Also, the strong light is effective against insects and birds in the distance.

Here, an example of using the plate of the present invention will be described. First, the plate of the present invention was used in a corn field. In this case, when the plate 10 was hung and observed at a height of 3 m above the ground, a group of crows stopped flying to the field.

When hung at a height of 5 m above the countryside, no group of crows flew. It was also confirmed that the starlings did not fly. In this case, it was installed more than 4m above the ground. In addition, when the plate of the present invention was hung 2 m above the greenhouse, no crows came in. In a strawberry field, the plate of the present invention was suspended 1 m above the ground, but no aphid was found on the strawberry and no leaf mite was found.

In addition, in the eggplant field, the plate of the present invention 1.
Fifteen pieces were suspended at a height of 5 m. In this case, the occurrence of aphids and leaf mites was not observed. In addition, the plate of the present invention was set for cucumber, tomato, eggplant, pepper and persimmon. For vegetables, 1.5m to 2m above the ground, and for fruit trees, 2m above the tree, the aphids were observed.
No occurrence of leaf mites was observed.

In the above-mentioned embodiment, the plate of the present invention can be used as an agricultural land, and if the plate is a place where birds gather, it can be hung and installed at another place such as a railway station or a building. This makes it possible to drive away birds such as crows and pigeons approaching the railway station and buildings. Further, the plate can be used for reflecting sunlight in the daytime, and can be used for insect and bird protection by reflecting a mercury lamp at night.

[0035]

As described above, according to the present invention, strong light can be diffusely reflected at the place of use to control insects and birds reliably and effectively for a long period of time.

[Brief description of drawings]

FIG. 1 shows a detailed structure of an insect-proof / insect-repellent plate according to an embodiment of the present invention, in which (a) is a plan view, (b) is a front view, and (c) is a line AA of (b). FIG.

FIG. 2 is a perspective view of the insect / bird cover plate of FIG.

FIG. 3 is an explanatory diagram of an example of a usage state of the insect / bird coating of FIG.

4 (a) and 4 (b) are detailed partial perspective views showing application examples of the insect / bird coating of FIG.

[Explanation of reference numerals] 10 plate 10a upper piece 10b lower piece 11 hanging tool 11a pillar 11b armrest 11c linear body 12 bending line 13a upper end 13b lower end 14 protruding part 14a hole for holding hanging tool 15 notch

Claims (3)

[Claims] 1. A pest-proof and bird-prevention plate that is rotatably hung at a predetermined height by a suspending member and reflects light to prevent insects and birds from approaching the object to be protected. The flat plate material, whose front and back surfaces are reflective surfaces with high reflectance, is bent at the folding line, and the distance from the bending line to the upper end when hanging is Insect-proof / bird-proof plate characterized by being shorter than the distance from the fold line to the lower end. 2. A portion projecting to a center portion in the width direction is formed at an upper end portion when the plate is suspended, and the suspension member is fastened to the upper end portion including the projecting portion. The insect repellent and insect repellant according to claim 1, wherein a hole is bored, and a left and right end portion along the bending line is formed with a notch inward from the end portion along the bending line. Plate for birds. 3. The insect-repellent / bird-repellent plate according to claim 1, wherein the flat plate material is made of stainless steel whose front and back surfaces are mirror-finished.