Bird protection tool and bird protection device

Abstract

To provide a bird protection device using a super fiber having high strength.SOLUTION: A bird protection device 1 has at least first, second, and third support columns 11, 12, and 13 erected at intervals in a field in a front view, the first' support column 11', the second' support column 12', and the third' support column 13' are positioned on the rear side, the periphery is covered with a net N, a bird protection tool 2 is attached to the upper portion of the first support column 11 and the upper portion of the first' support column 11', the upper portion of the second support column 12 and the upper portion of the second' support column 12', and the upper portion of the third support column 13 and the upper portion of the third' support column 13', respectively. Birds are prevented from entering from the upper opening portions of the first support column 11, the first' support column 11', the second' support column 12', the third' support column 13', the third support column 13, and the second support column 12, and a crop 3 is positioned below the bird protection tool 2.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a bird repellent and a bird repellent device, and particularly to a bird repellent and a bird repellent device using a super fiber with high strength.

Background Art

[0002] As a bird net, there is one made of a tegus net of synthetic fiber (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In order to prevent birds from entering by covering the ceiling surface with the above bird net, it becomes large-scale and costly. In order to achieve the above improvement, it is conceivable to stretch the tegus using a support column stuck in the field. However, when stretching the tegus, if the diameter of the tegus is small, the strength cannot be obtained, so the diameter must be thickened. If the diameter is thickened, the position of the tegus is recognized by the birds, and the problem that the intrusion of the birds cannot be prevented occurs.

[0005] An object of the present invention is to provide a bird repellent and a bird repellent device made in consideration of the above circumstances.

Means for Solving the Problems

[0006] The bird repellent according to claim 1 has a super fiber as a core yarn, and the periphery of the core yarn is covered with a black coating.

[0007] In addition, the bird repellent device according to claim 2 has a super fiber as a core yarn, and the periphery of the core yarn is covered with a black fused yarn.

[0008] In addition, the bird repellent device according to claim 3 has at least first, second, and third columns that are erected at intervals in the field when viewed from the front. When viewed from the front, a first' column is located behind the first column, a second' column is located behind the second column, and a third' column is located behind the third column. The first column, the first' column, the second' column, the third' column, the third column, the second column, and the first column are covered with a net around them. The upper part of the first column and the upper part of the first' column, the upper part of the second column and the upper part of the second' column, and the upper part of the third column and the upper part of the third' column are respectively attached with the bird repellent device according to claim 1 or claim 2, preventing birds from entering from the open parts above the first column, the first' column, the second' column, the third' column, the third column, and the second column, and crops are located below the bird repellent device according to claim 1 or claim 2.

[0009] In addition, the bird repellent device according to claim 4 is the bird repellent device according to claim 1 or claim 2, and the target bird of the bird repellent device is a crow.

Advantages of the Invention

[0010] According to the bird repellent device of claim 1, since a super fiber with high strength is used as the core yarn, the bird repellent device can be made thin so that it is difficult for birds to recognize its presence. Since the periphery of the core yarn is covered with a black covering, it can prevent the core yarn of the super fiber from being deteriorated by ultraviolet rays, absorb the sunlight with the black covering, and prevent the generation of reflected light that is easily recognized by birds (for example, crows), thereby enhancing the bird repellent effect.

[0011] Also, according to the bird repellent device described in claim 2, since a super fiber with high strength is used as the core yarn, the bird repellent device can be made thin so that it is difficult for birds to recognize its presence. Since the periphery of the core yarn is covered with a black fused yarn, it prevents the core yarn of the super fiber from being deteriorated by ultraviolet rays, absorbs sunlight with the black fused yarn, and prevents the generation of reflected light that is easily recognized by birds (for example, crows), thereby enhancing the bird repellent effect.

[0012] Also, according to the bird repellent device described in claim 3, at least the intrusion of birds from the open part above the first support column, the first' support column, the second' support column, the third' support column, the third support column, and the second support column is prevented by using the bird repellent device described in claim 1 or claim 2. Since the bird repellent device can be made thin so that it is difficult for birds to recognize its presence, and the periphery of the core yarn is covered with a black covering [the covering is, for example, as shown in Fig. 2(a), wound with a black fused yarn, or as shown in Fig. 2(b), a tubular one.], it prevents the core yarn of the super fiber from being deteriorated by ultraviolet rays, absorbs sunlight with the black covering, and prevents the generation of reflected light that is easily recognized by birds (for example, crows), thereby enhancing the bird repellent effect.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0014] A bird repellent device and a bird repellent device according to an embodiment of the present invention will be described with reference to Figs. 1 and 2.

[0015] Reference numeral 1 shown in Fig. 1 is a bird repellent device, and the bird repellent device 1 is, for example, for preventing crows from entering a field. The bird-proof device 1 has at least the first, second, and third support columns 11, 12, 13 (in this embodiment, the first, second, third... Nth support columns 11, 12, 13... 1N) which are erected at intervals in the field when viewed from the front. When viewed from the front, a first' support column 11' is located behind the first support column 11, a second' support column 12' is located behind the second support column 12, and a third' support column 13' is located behind the third support column 13 (in this embodiment, the first', second', third'... N'th support columns 11', 12', 13'... 1N'). The first support column 11, the first' support column 11', the second' support column 12', the third' support column 13', the third support column 13, the second support column 12, and the first support column 11 are covered with a net N around them (in this embodiment, the first support column 11, the first', second', third'... N'th support columns 11', 12', 13'... 1N', the Nth support column 1N... the third, second, first support columns 13, 12, 11 are covered with a net N). And bird-proof tools 2 (described later) are respectively attached to the upper parts of the first support column 11 and the first' support column 11', the upper parts of the second support column 12 and the second' support column 12', and the upper parts of the third support column 13 and the third' support column 13 (in this embodiment, the number of bird-proof tools 2 is N). It prevents the intrusion of birds (for example, crows) from the open parts above the first support column 11, the first' support column 11', the second' support column 12', the third' support column 13', the third support column 13, and the second support column 12, and crops 3 are located below the bird-proof tools 2.

[0016] The heights of the first, second, and third support columns 11, 12, 13 and the first', second', and third' support columns 11', 12', 13' are appropriate heights, for example, about 170 cm. Also, the intervals between the adjacent first and second support columns 11, 12 and the first' and second' support columns 11', 12', and the intervals between the adjacent second and third support columns 12, 13 and the second' and third' support columns 12', 13' are appropriate lengths, for example, about cm. Also, D shown in FIG. 1 is a door for entering and exiting the bird-proof device 1.

[0017] According to the above-described bird repellent device 1, at least for preventing birds from entering through the open part above the first support column 11, the first' support column 11', the second' support column 12', the third' support column 13', the third support column 13, and the second support column 12, the bird repellent tool 2 described below is used. Since the bird repellent tool 2 can be made thin so that it is difficult for birds to recognize its presence, the periphery of the core yarn is covered with a black covering 22 [the covering 22 is, for example, as shown in Fig. 2(a), wound with a black fused yarn, or as shown in Fig. 2(b), tubular.], it can prevent the core yarn 21 of the super fiber from deteriorating due to ultraviolet rays, absorb the sunlight with the black covering 22, prevent the generation of reflected light that is easily recognized by birds (for example, crows), and enhance the bird repellent effect.

[0018] Also, as shown in Figs. 2(a) and 2(b), the bird repellent tool 2 has a super fiber as the core yarn 21, and the periphery of the core yarn 21 is covered with a black covering 22. As a form of covering, as shown in Fig. 2(a), a super fiber may be used as the core yarn 21, and the periphery of this core yarn 21 may be covered with a black fused yarn 22. In this case, the diameter of the core yarn 21 is about 0.2 mm to about 0.3 mm, and the diameter of the fused yarn 22 is about 0.1 mm. The super fiber of the core yarn 21 is preferably a high-strength and high-elastic fiber yarn with a strength of 18 cN / decitex or more and a modulus of elasticity of 380 cN / decitex or more. Specifically, it is preferably at least one fiber yarn selected from aramid (including para and meta types) fibers, polyarylate fibers, poly(p-phenylene benzobisoxazole) (PBO) fibers, poly(p-phenylene benzobisthiazole) (PBZT) fibers, polyethylene fibers, polyetheretherketone fibers, and polyvinyl alcohol fibers. These fibers can also be used in combination. The warp and weft can be the same or different. Among these, aramid fibers with high heat resistance (for example, the product name "Kevlar (registered trademark)" manufactured by Toray DuPont, the product name "Twaron (registered trademark)" of Teijin Twaron, and the product name "Technora" manufactured by Teijin), polyarylate fibers (for example, the product name "Xiberas" manufactured by Toray), and poly(p-phenylene benzobisoxazole) (PBO) fibers (for example, the product name "Zylon" manufactured by Toyobo) are preferred. Also, the fusing yarn 22 has a melting point lower than that of the super fiber, and by applying heat, the fusing yarn 22 is fixed to the core yarn 21. The fusing yarn 22 is a low-melting-point nylon with high heat adhesiveness and a core-sheath composite type heat-fusing yarn. Specifically, it is the product name Amilan manufactured by Toray. Also, the black coating 22 shown in Fig. 2(b) can be formed by dipping the core yarn 21 of the super fiber into a melt (not shown) and then taking it out of the melt after dipping.

[0019] According to the above-described bird repellent 2, since the super fiber with high strength is used as the core yarn 21, it is made thin so as to be recognizable by birds (for example, crows). Also, since the periphery of the core yarn 21 is covered with the black fusing yarn 22, the core yarn 21 can be protected from deterioration by ultraviolet rays, and the sunlight can be absorbed by the black color of the fusing yarn 22, preventing the generation of reflected light that is easily recognizable by birds (for example, crows).

[0020] Moreover, according to the above-described bird repellent device 1, since the bird repellent tool 2 of the bird repellent device 1 uses a super fiber with high strength as the core yarn 21, the bird repellent tool 2 can be made thin so that it is difficult for birds to recognize its presence. The periphery of the core yarn 21 is covered with a black coating 22 [the coating 22 is, for example, as shown in Fig. 2(a), wound with a black fused yarn, or as shown in Fig. 2(b), tubular.]. Therefore, it can prevent the deterioration of the super fiber core yarn 21 due to ultraviolet rays, absorb the sunlight with the black coating 22, prevent the generation of reflected light that is easily recognized by birds (for example, crows), and enhance the bird repellent effect. Note that the bird repellent device 1 is suitable when the bird for repelling birds is a crow.

Explanation of Symbols

[0021] 1 Bird repellent device 2 Bird repellent tool 3 Crop 11 First pillar 12 Second pillar 13 Third pillar 11’ First’ pillar 12’ Second’ pillar 13’ Third’ pillar 21 Core yarn 22 Coating (fused yarn) D Door N Net

Claims

1. A bird repellent characterized in that it has a super fiber as a core yarn and the periphery of the core yarn is covered with a black coating.

2. A bird repellent characterized in that it has a super fiber as a core yarn and the periphery of the core yarn is covered with a black fused yarn.

3. When viewed from the front, it has at least first, second, and third support columns erected with intervals in the field, When viewed from the front, a first' support column is located behind the first support column, a second' support column is located behind the second support column, and a third' support column is located behind the third support column, The first support column, the first' support column, the second' support column, the third' support column, the third support column, the second support column, and the first support column are covered with a net around them, The bird repellent according to Claim 1 or Claim 2 is respectively attached to the upper part of the first support column and the upper part of the first' support column, the upper part of the second support column and the upper part of the second' support column, and the upper part of the third support column and the upper part of the third' support column, It prevents birds from entering from the open parts above the first support column, the first' support column, the second' support column, the third' support column, the third support column, and the second support column, Crops are located below the bird repellent according to Claim 1 or Claim 2. A bird repellent device characterized by the above.

4. The bird targeted by the bird repellent is a crow. A bird repellent device according to Claim 1 or Claim 2, characterized by the above.

Images