Bird control 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 Prevention a bird deterrent device, and particularly relates to a bird deterrent device using high-strength super fibers Prevention .

Background Art

[0002] As a bird prevention net, there is one made of a synthetic fiber fine cord net (refer to Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the above bird prevention net is used to cover the ceiling surface to block birds from entering, the installation becomes large-scale and costly. To achieve the above improvement, a method of stretching fine cords using support posts inserted into the field is conceivable. However, when stretching fine cords, if the diameter of the cord is too small, sufficient strength cannot be obtained, so the diameter must be increased. When the diameter is increased, the position of the cord is recognized by birds, leading to the problem that bird intrusion cannot be prevented.

[0005] The present invention has been made in consideration of the above circumstances Prevention and aims to provide a bird deterrent device.

Means for Solving the Problems

[0008] Claim 1 The described bird deterrent device has, in a front view, at least first support posts that are erected at intervals in the field The support pillars and , second The support pillars and , and third support posts, In a front view, the first' support is located behind the first support, the second' support is located behind the second support, and the third' support is located behind the third support. The first support, the first' support, the second' support, the third' support, the third support, the second support, and the first support are all covered with a net. The upper part of the first support and the upper part of the first' support, the upper part of the second support and the upper part of the second' support, and the upper part of the third support and the upper part of the third' support, respectively Prevention Bird equipment Without a spring It was installed, To prevent birds from entering through the openings above the first support, the first' support, the second' support, the third' support, the third support, and the second support, said prevention Crops are located below the bird traps. 、 The aforementioned bird repellent device uses super fiber as its core thread, and the core thread is covered with black fused thread. The core yarn is a Siberas® fiber yarn with a strength of 18 cN / dtex or more and an elastic modulus of 380 cN / dtex or more, and the core yarn is covered with a black coating having a lower melting point than the core yarn, and the coating is fixed to the core yarn by heat. The target bird of the aforementioned bird repellent is a crow. .

[0009] Furthermore, claims 2 Bird control as described The device is correct In a frontal view, at least the first The support pillars and , 2nd The support pillars and , has a third support column, In a front view, the first' support is located behind the first support, the second' support is located behind the second support, and the third' support is located behind the third support. The first support, the first' support, the second' support, the third' support, the third support, the second support, and the first support are all covered with a net. The upper part of the first support and the upper part of the first' support, the upper part of the second support and the upper part of the second' support, and the upper part of the third support and the upper part of the third' support, respectively Prevention Bird traps were attached, Prevent birds from entering through the openings above the first support post, the 1'-th support post, the 2'-th support post, the 3'-th support post, the third support post, and the second support post, said prevention Crops are positioned below the bird repellent tool 、 The aforementioned bird repellent device uses super fiber as its core thread, and the core thread is covered with black fused thread. The core yarn is a Siberas® fiber yarn with a strength of 18 cN / dtex or more and an elastic modulus of 380 cN / dtex or more, and the core yarn is covered with a black coating having a lower melting point than the core yarn, and the coating is fixed to the core yarn by heat. The target bird of the aforementioned bird repellent is a crow. . [Advantageous Effects of Invention]

[0012] Claim 1 According to the described bird repellent device, since the bird repellent tool described in claim 1 or claim 2 is used to prevent birds from entering through at least the openings above the first support post, the 1'-th support post, the 2'-th support post, the 3'-th support post, the third support post, and the second support post, the bird repellent tool can be made thin so that birds are less likely to recognize its presence. Since the periphery of the core yarn is covered with a black covering [the covering is, for example, one wound with black fused yarn as shown in Fig.2(a), or a tubular one as shown in Fig.2(b)], it prevents the core yarn of super fiber from deteriorating due to ultraviolet rays, and the black covering absorbs sunlight to prevent 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 1 is a schematic view of a bird repellent device according to an embodiment of the present invention. [Figure 2] Figure 2(a) is a schematic view of the bird repellent tool used in the bird repellent device of Figure 1, and Figure 2(b) is a schematic view of a bird repellent tool of another embodiment different from the bird repellent tool of Figure 2(a). [Mode for Carrying Out the Invention]

[0014] One embodiment of the present invention Prevention The bird repellent device will be described with reference to Figure 1 and Figure 2.

[0015] Figure 1 shows a bird-repellent device, which, for example, prevents crows from entering a field. Bird control device 1, when viewed from the front, has at least first, second, and third support posts 11, 12, and 13 (in this embodiment, first, second, third...Nth support posts 11, 12, 13...1N) erected at intervals in the field, and when viewed from the front, the first' support post 11' is behind the first support post 11, the second' support post 12' is behind the second support post 12, and the third' support post 13 is behind the third support post 13. 13' is positioned accordingly (in this embodiment, the 1st', 2nd', 3rd'...Nth' support posts 11', 12', 13'...1N'), and the perimeter of the 1st support post 11, the 1st' support post 11', the 2nd' support post 12', the 3rd' support post 13', the 3rd support post 13, the 2nd support post 12, and the 1st support post 11 is covered with net N (in this embodiment, the 1st support post 11, the 1st', 2nd' , the perimeter of the 3rd'...Nth' support posts 11', 12', 13'...1N', the Nth support post 1N...the perimeter of the 3rd, 2nd, and 1st support posts 13, 12, 11 is covered with net N. ), and the upper part of the 1st support post 11 and the upper part of the 1st' support post 11', the upper part of the 2nd support post 12 and the upper part of the 2nd' support post 12', the upper part of the 3rd support post 13 and the 3rd' support post 13' Bird-repellent devices 2 (in this embodiment, there are N bird-repellent devices 2), described later, are attached to the upper part of each of the first support 11, the first' support 11', the second' support 12', the third' support 13', the third support 13, and the second support 12, preventing birds (for example, crows) from entering through the openings above them, with the crops 3 located below the bird-repellent devices 2.

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

[0017] According to the bird-repellent device 1 described above, at least the bird-repellent device 2 described later is used to prevent birds from entering through the openings above the first support 11, the first' support 11', the second' support 12', the third' support 13', the third support 13, and the second support 12. The bird-repellent device 2 can be made thin so that it is difficult for birds to recognize its presence, and the core thread is covered with a black covering 22 [the covering 22 is, for example, made by wrapping it with black fused thread as shown in Figure 2(a), or in a cylindrical shape as shown in Figure 2(b)]. This prevents deterioration of the super fiber core thread 21 by ultraviolet rays, and the black covering 22 absorbs sunlight, preventing the generation of reflected light that is easily recognized by birds (for example, crows), thereby enhancing the bird-repellent effect.

[0018] Furthermore, as shown in Figures 2(a) and 2(b), the bird repellent device 2 has a super fiber as the core thread 21, and the core thread 21 is covered with a black covering 22. As shown in Figure 2(a), the covering can be configured such that a super fiber is used as the core thread 21, and the area around this core thread 21 is covered with a black fused thread 22. In this case, the diameter of the core thread 21 is approximately 0.2 mm to 0.3 mm, and the diameter of the fused thread 22 is approximately 0.1 mm. The core yarn 21 is preferably a high-strength and high-elasticity fiber yarn with a strength of 18 cN / decitex or higher and an elastic modulus of 380 cN / decitex or higher. Specifically, it is preferably at least one fiber yarn selected from aramid (including para- and meta-aramid) fibers, polyarylate fibers, poly(p-phenylenebenzobisoxal) (PBO) fibers, poly(p-phenylenebenzobisthiazole) (PBZT) fibers, polyethylene fibers, polyetheretherketone fibers, and polyvinyl alcohol fibers. These fibers can also be used in mixtures. The warp and weft may be the same or different. Among these, heat-resistant aramid fibers (for example, "Kevlar®" manufactured by Toray DuPont, "Twaron®" manufactured by Teijin Twaron, and "Technora" manufactured by Teijin Corporation), polyarylate fibers (for example, "Siberas" manufactured by Toray Industries), and poly(p-phenylenebenzobisoxal) (PBO) fibers (for example, "Zylon" manufactured by Toyobo Co., Ltd.) are preferred. Furthermore, the fused yarn 22 has a lower melting point than the super fiber, and when heat is applied, The fused yarn 22 is fixed to the core yarn 21. The fused yarn 22 is a low-melting-point nylon core-sheath composite heat-fused yarn with high heat adhesion properties, specifically, Toray Industries' product name Amiran. Furthermore, the black coating 22 shown in Figure 2(b) can be formed by immersing the super fiber core thread 21 in a molten material (not shown), and then removing it from the molten material after immersion.

[0019] According to the bird repellent device 2 described above, a super fiber with high strength is used as the core thread 21, making it thin enough to be recognized by birds (for example, crows). Furthermore, the core thread 21 is covered with black fused thread 22, which prevents the core thread 21 from degrading due to ultraviolet rays and prevents the generation of reflected light that is easily recognized by birds (for example, crows) by the black color of the fused thread 22.

[0020] Furthermore, according to the bird repellent device 1 described above, since the bird repellent device 2 of the bird repellent device 1 uses a super fiber core thread 21 which is strong in strength, it can be made thin so that it is difficult for birds to recognize the presence of the bird repellent device 2. The area around the core thread 21 is covered with a black covering 22 [the covering 22 is, for example, made by wrapping with black fused thread as shown in Figure 2(a), or in a cylindrical shape as shown in Figure 2(b)], so that the deterioration of the super fiber core thread 21 by ultraviolet rays is prevented, and sunlight is absorbed by the black covering 22, preventing the generation of reflected light which is easily recognized by birds (for example, crows), thereby enhancing the bird repellent effect. Furthermore, the bird-repellent device 1 is suitable when the birds to be repelled are crows. [Explanation of Symbols]

[0021] 1. Bird control device 2 Bird prevention equipment 3 crops 11 First pillar 12. Second support 13 The Third Pillar 11' First support 12' Second support post 13' Third support post 21 Core yarn 22 Covering material (fused yarn) D Door N Net

Claims

1. In a front view, it has at least a first support, a second support, and a third support, which are erected at intervals in the field. In a front view, the first' support is located behind the first support, the second' support is located behind the second support, and the third' support is located behind the third support. The first support, the first' support, the second' support, the third' support, the third support, the second support, and the first support are all covered with a net. Bird repellents are attached to the upper parts of the first support and the first' support, the upper parts of the second support and the second' support, and the upper parts of the third support and the third' support, respectively, without the use of springs. To prevent birds from entering through the openings above the first support, the first' support, the second' support, the third' support, the third support, and the second support, The crops are located below the bird-repellent device, The aforementioned bird repellent device uses super fiber as its core thread, and the core thread is covered with black fused thread. The core yarn is a Siberas® fiber yarn with a strength of 18 cN / dtex or more and an elastic modulus of 380 cN / dtex or more, and the core yarn is covered with a black coating having a lower melting point than the core yarn, and the coating is fixed to the core yarn by heat. The target bird of the aforementioned bird repellent is a crow. A bird-repellent device characterized by the following features.

2. In a front view, it has at least a first support, a second support, and a third support, which are erected at intervals in the field. In a front view, the first' support is located behind the first support, the second' support is located behind the second support, and the third' support is located behind the third support. The first support, the first' support, the second' support, the third' support, the third support, the second support, and the first support are all covered with a net. Bird deterrents are attached to the upper parts of the first support and the first' support, the upper parts of the second support and the second' support, and the upper parts of the third support and the third' support, respectively. To prevent birds from entering through the openings above the first support, the first' support, the second' support, the third' support, the third support, and the second support, The crops are located below the bird-repellent device, The aforementioned bird repellent device uses super fiber as its core thread, and the core thread is covered with black fused thread. The core yarn is a Siberas® fiber yarn with a strength of 18 cN / dtex or more and an elastic modulus of 380 cN / dtex or more, and the core yarn is covered with a black coating having a lower melting point than the core yarn, and the coating is fixed to the core yarn by heat. The target bird of the aforementioned bird repellent is a crow. A bird-repellent device characterized by the following features.

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