Bird prevention device and method for installing bird prevention device

Abstract

To provide a bird prevention device capable of being easily produced and easily installed.SOLUTION: A bird prevention device 1 includes a bird prevention part 2 formed by a metal wire 21 spirally wound in a triangular shape when viewed in an axial direction and extending in the axial direction, and attachment parts 3 for attaching the bird prevention part 2 to a structure T. The bird prevention part 2 includes a plurality of bottom side parts 211 extending in a width direction when viewed in the axial direction, and a plurality of one-pairs of oblique side parts 212, 213 extending in a height direction. Each attachment part 3 includes a support part 32 configured to support at least a portion of one bottom side part 211 among the plurality of bottom side parts 211, and a fixing part 31 for fixing the support part 32 to the structure T.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a bird-prevention device that is installed on a structure or the like in order to prevent birds from flying into the structure or the like, and a method for installing the bird-prevention device. [Background technology]

[0002] Bird-repelling devices that are installed on structures such as signs, parapets, shutter boxes, and handrails to prevent birds from flying into the structures are known. For example, Patent Document 1 discloses a bird-repelling device having a wound part that is wound once or multiple times. In the bird-repelling device, the wound part is made of a material that has enough elasticity to sway when a bird lands on it or when the wind blows. The swaying of the wound part allows birds that are perched on the wound part and birds that are perched around the wound part to escape.

[0003] Patent Document 2 discloses a bird pest prevention device that includes a plurality of bird repellent parts arranged at a predetermined interval, each of which has an inclined part formed in an inverted V shape, and a connecting part that integrally connects the bird repellent parts. The inclined parts are formed to have an inclination angle of 45 degrees or more with respect to the horizontal direction. Birds cannot grab and land on inclined parts having an inclination angle of 45 degrees or more with their fingers. Therefore, the bird pest prevention device can prevent birds from flying in. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP2003-134987A [Patent Document 2] Utility model registration No. 3113585 Summary of the Invention [Problem to be solved by the invention]

[0005] The winding portion of the bird repellent device of Patent Document 1 can be formed from a single wire wound around an axis. Therefore, the bird repellent device can be easily manufactured. However, the winding portion is configured to expand and contract in the axial direction. Therefore, in order to install the bird repellent device on a structure or the like, it is necessary to fix the winding portion at multiple points in the axial direction of the winding portion. Therefore, there is a demand for a bird repellent device that can be installed more easily.

[0006] In the bird pest prevention device of Patent Document 2, the inclined portion and the connecting portion are fixed by welding. Therefore, it is not easy to manufacture the bird pest prevention device of Patent Document 2. In addition, the bottom side of the bird pest prevention device is open. Therefore, the bird pest prevention device can only be attached to an installation surface having a width dimension equal to or larger than the width dimension of the bird pest prevention device. In other words, it is difficult to attach the bird pest prevention device of Patent Document 2 to an installation surface having a width dimension smaller than the width dimension.

[0007] Therefore, there is a need for a bird-deterrent device that is easy to manufacture and install.

[0008] SUMMARY OF THE PRESENT EMBODIMENT It is an object of the present invention to provide a bird prevention device which is easy to manufacture and easy to install. [Means for solving the problem]

[0009] A bird-prevention device according to one embodiment of the present invention is a bird-prevention device to be installed on a structure. The bird-prevention device has a bird-prevention section that is triangular when viewed in the axial direction and is made of a metal wire wound in a spiral shape extending in the axial direction, and an attachment section for attaching the bird-prevention section to the structure. The bird-prevention section has a plurality of base sections that extend in the width direction when viewed in the axial direction, and a plurality of pairs of oblique sides that extend in the height direction. The attachment section has a support section that is configured to support at least a portion of one of the plurality of base sections, and a fixing section that fixes the support section to the structure (first configuration).

[0010] In the bird-proofing device having the above-mentioned configuration, the bird-proofing portion is formed of a metal wire wound in a spiral shape, so that the bird-proofing device can be easily manufactured.

[0011] The bird-repellent part has a triangular shape having a base part extending in the width direction and a pair of oblique sides extending in the height direction when viewed in the axial direction. The mounting part is configured to support the base part. The mounting part configured to support the base part can mount the bird-repellent part to a structure in a position where the apex part of the triangular bird-repellent part is located on the upper side. By mounting the bird-repellent part to the structure in this position, multiple oblique sides can be positioned to extend upward from the structure. This makes it possible to prevent birds from flying into the structure.

[0012] Furthermore, in the bird-prevention device having the above-mentioned configuration, a plurality of mounting parts are attached at predetermined intervals to a structure on which the bird-prevention device is to be installed, and one of the plurality of bottom parts of the bird-prevention part is supported by a support part of each mounting part, so that the bird-prevention part can be attached to the structure. Therefore, the bird-prevention part can be easily attached to the structure.

[0013] Therefore, it is possible to provide a bird-proof device that can be easily manufactured and easily installed.

[0014] In the bird-proof device of the first configuration, the bird-proof portion is spring-shaped and elastically deformable in the axial direction (second configuration).

[0015] This allows the axial distance between adjacent oblique sides to be easily adjusted, so that, for example, the distance can be easily adjusted to a pitch suitable for birds that fly in. This makes it possible to more reliably prevent birds from flying into the structure.

[0016] In general, when a spring-like member made of a wire wound in a spiral shape extending in the axial direction is elastically deformed in the axial direction, a force that rotates the spring-like member in the circumferential direction is generated. Therefore, the elastic deformation of the member may cause the end of the wire constituting the spring-like member to move in the circumferential direction. Therefore, for example, in a spring-like bird-repellent part that is circular when viewed in the axial direction, it is not easy to fix the axial end to the structure by an attachment part.

[0017] In contrast, the spring-like bird-proof part that is triangular when viewed in the axial direction has a bottom corner where the base and oblique sides are connected. Therefore, when the bird-proof part is elastically deformed in the axial direction, the bottom corner prevents the bird-proof part from rotating in the circumferential direction. Furthermore, the mounting part configured to support the bottom side of the bird-proof part more reliably prevents the bird-proof part from rotating in the circumferential direction. Therefore, in a bird-proof device having the above-mentioned configuration, for example, the axial end of the bird-proof part can be fixed to the structure by the mounting part. This makes it possible to more easily and reliably position the bird-proof part in the installation area of ​​the bird-proof part on the structure.

[0018] In the bird-proof device of the first configuration, the angle formed between the base portion and one of the pair of oblique sides, and the angle formed between the base portion and the other of the pair of oblique sides, are each 65 degrees or greater (third configuration).

[0019] Birds cannot land on objects that have an inclination angle of 65 degrees or more with respect to the horizontal plane. Therefore, birds cannot land on the oblique side that has an inclination angle of 65 degrees or more with respect to the base. Therefore, the above-mentioned configuration can more reliably prevent birds from flying into the structure.

[0020] In the bird-proof device of the first configuration, an apex corner where one of the pair of oblique sides is connected to the other oblique side is arc-shaped when viewed in the axial direction (fourth configuration).

[0021] As a result, when the bird-proof part is attached to a structure with the apex corner located on the upper side, the upper end of the bird-proof part has a rounded shape, so that even if a bird comes into contact with the apex corner of the bird-proof part, the bird can be prevented from being injured.

[0022] In the bird-proof device of the first configuration, the bird-proof part is made of stainless steel, and an oxide coating layer is provided on the surface of the bird-proof part (fifth configuration).

[0023] The oxide coating layer is formed by heat treating stainless steel. When stainless steel is heat treated at a predetermined temperature, it develops a color, for example, red, brown, etc. In other words, a bird-repellent part made of stainless steel with an oxide coating layer on its surface can be colored red, brown, etc. without using paint or the like. This makes it possible to attach a bird-repellent part to a structure that is similar in color to the structure, for example, red, brown, etc. Therefore, it is possible to provide a bird-repellent part that is easy to manufacture and does not spoil the scenery.

[0024] In the bird-proof device of the first configuration, the support portion has a pair of clamping portions that clamp the one base portion from both sides in the axial direction (sixth configuration).

[0025] With this configuration, the one base portion can be supported from both sides in the axial direction by the support portion, and therefore the bird-preventing portion can be more reliably supported by the support portion.

[0026] A bird-prevention device installation method according to one embodiment of the present invention is a method for installing a bird-prevention device having any one of the second to sixth configurations. The bird-prevention device installation method includes a mounting part installation step of installing the multiple mounting parts to the structure, a first bird-prevention part installation step of supporting one of the multiple bottom parts by the support part of one of the multiple mounting parts, a bird-prevention part deformation step of elastically deforming the bird-prevention part to have a predetermined length in the axial direction in a state in which the one bottom part is supported by the support part of the one mounting part, and a second bird-prevention part installation step of supporting another one of the multiple bottom parts of the elastically deformed bird-prevention part by the support part of another of the multiple mounting parts.

[0027] In the above-mentioned installation method, in the first bird-preventing part mounting step, one of the multiple bottom parts of the spring-shaped bird-preventing part that elastically deforms in the axial direction is fixed to the structure. In this state, the bird-preventing part is elastically deformed in the axial direction, and in the second bird-preventing part mounting step, the other bottom part is fixed to the structure. Therefore, the spring-shaped bird-preventing part can be easily mounted to the structure. Thus, a method for installing a bird-preventing device that can be easily installed can be provided. Effect of the Invention

[0028] The bird-repellent device of the present invention has a bird-repellent part that is triangular when viewed in the axial direction and is made of a metal wire that is wound in a spiral shape extending in the axial direction, and a mounting part for mounting the bird-repellent part to the structure. The bird-repellent part has a plurality of base parts that extend in the width direction when viewed in the axial direction, and a plurality of pairs of oblique sides that extend in the height direction. The mounting part has a support part configured to support at least a portion of one of the plurality of base parts, and a fixing part that fixes the support part to the structure.

[0029] The bird-preventing portion of the bird-preventing device having the above-mentioned configuration is composed of a metal wire wound in a spiral shape. Therefore, the bird-preventing device can be easily manufactured. Also, the bird-preventing portion can be attached to a structure on which the bird-preventing device is to be installed by attaching a plurality of mounting portions at a predetermined interval and supporting one of a plurality of bottom portions of the bird-preventing portion by a support portion of each mounting portion. Therefore, the bird-preventing portion can be easily attached to the structure. Therefore, it is possible to provide a bird-preventing device that can be easily manufactured and easily installed. [Brief description of the drawings]

[0030] [Figure 1] FIG. 1 is a perspective view showing a schematic configuration of a bird repellent device according to an embodiment. [Diagram 2] FIG. 2 is a perspective view showing a state in which the bird repellent device is installed on a structure. [Diagram 3] FIG. 3 is a view of the bird-preventing part as viewed in the axial direction of the bird-preventing part. [Figure 4A] FIG. 4A is a diagram illustrating elastic deformation of the bird-preventing part. [Figure 4B] FIG. 4B is a diagram illustrating elastic deformation of the bird-preventing part. [Diagram 5] FIG. 5 is a perspective view showing a schematic configuration of the attachment portion according to the embodiment. [Figure 6] FIG. 6 is an enlarged view showing the bottom portion supported by the support portion. [Figure 7A] FIG. 7A is a diagram illustrating a schematic view of an embodiment in which the base portion is supported by a support portion. [Figure 7B] FIG. 7B is a diagram illustrating a schematic view of an embodiment in which the base portion is supported by a support portion. [Figure 7C] FIG. 7C is a diagram illustrating a mode in which the base portion is supported by a support portion. [Figure 8A] FIG. 8A is a diagram illustrating a method for installing the bird prevention device. [Figure 8B] FIG. 8B is a diagram illustrating a method for installing the bird prevention device. [Figure 8C]FIG. 8C is a diagram illustrating a method for installing the bird-repelling device. [Figure 8D] FIG. 8D is a diagram illustrating a method for installing the bird prevention device. [Figure 8E] FIG. 8E is a diagram illustrating a method for installing the bird-repelling device. [Figure 8F] FIG. 8F is a diagram explaining a method for installing the bird repellent device. [Figure 9] FIG. 9 is a perspective view showing a schematic configuration of a mounting portion according to another embodiment. [Figure 10A] FIG. 10A is a diagram illustrating a method for attaching a bird repellent part to a structure using an attachment part according to another embodiment. [Figure 10B] FIG. 10B is a diagram illustrating a method for attaching a bird repellent part to a structure using an attachment part according to another embodiment. [Figure 10C] FIG. 10C is a diagram illustrating a method for attaching a bird repellent part to a structure using an attachment part according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. Note that the same or corresponding parts in the drawings are given the same reference numerals and their description will not be repeated. Furthermore, the dimensions of the components in each drawing do not faithfully represent the actual dimensions of the components and the dimensional ratios of each component.

[0032] In this specification, the connection portion between the oblique side portion 212 and the oblique side portion 213 is referred to as the apex corner portion, and the connection portion between the oblique side portion 212 and the base portion 211 and the connection portion between the oblique side portion 213 and the base portion 211 are referred to as the base corner portion. However, there is no intention to limit the shape of the bird-repellent part 2 when viewed in the axial direction to an isosceles triangle shape.

[0033] (Embodiment) A bird-prevention device 1 according to an exemplary embodiment of the present invention will be described with reference to Figs. 1 to 8. Fig. 1 is a perspective view showing a schematic configuration of the bird-prevention device 1. Fig. 2 is a view showing the bird-prevention device 1 installed on an H-beam, which is an example of a structure T. The bird-prevention device 1 can be installed on an object having a space above which birds can perch. Such an object is, for example, an H-beam, a signboard, a parapet, a shutter box, or a handrail of an apartment building. In this specification, the term "structure" includes objects having such spaces as described above.

[0034] As shown in Fig. 1, the bird-proof device 1 has a bird-proof part 2, an attachment part 3, and a pressing part 4. As shown in Fig. 2, the bird-proof part 2 is attached to a structure T via the attachment part 3.

[0035] 1, the bird-repellent part 2 has a triangular shape when viewed in the axial direction and a spiral shape extending in the axial direction. The bird-repellent part 2 is made of a metal wire 21 wound in a spiral shape.

[0036] The bird-repellent part 2 has a plurality of base parts 211 extending in the width direction when viewed in the axial direction, and a plurality of pairs of oblique parts 212, 213 extending in the height direction. As shown in Fig. 2, the bird-repellent part 2 having a triangular shape when viewed in the axial direction can be disposed on the structure T in a position in which the height direction coincides with the up-down direction. In other words, the bird-repellent part 2 can be attached to the structure T in a position in which the apex part at which one oblique part 212 and the other oblique part 213 of the pair of oblique parts 212, 213 are connected is located on the upper side.

[0037] Fig. 3 is a view of the bird-repellent part 2 as viewed in the axial direction. As shown in Fig. 3, in this embodiment, the bird-repellent part 2 has a height direction length L2 that is greater than a width direction length L1 as viewed in the axial direction. The length L1 may be any length that corresponds to the depth space of the structure T. The length L2 may be any length that corresponds to the vertical space above the structure T.

[0038] In this embodiment, the oblique side portion 212 and the oblique side portion 213 have the same length. That is, in this embodiment, the bird-repelling part 2 has a vertically elongated isosceles triangular shape when viewed in the axial direction.

[0039] In this embodiment, the angles D1 and D2 are, for example, 65 degrees each. It is generally known that birds cannot land on objects having an inclination angle of 45 degrees or more with respect to the horizontal plane. Therefore, by attaching the bird-repellent part 2 of this embodiment to the structure T in a position in which the apex corner is located on the upper side, birds cannot land on the oblique sides 212, 213 of the bird-repellent part 2 attached to the structure T. Therefore, by attaching the bird-repellent part 2 to the structure T, it is possible to prevent birds from flying into the structure T.

[0040] In this embodiment, the apex corner is arc-shaped when viewed in the axial direction. That is, the upper end of the bird-repellent part attached to a structure with the apex corner located on the upper side is rounded. This makes it possible to prevent birds from being injured even if they fly onto the structure T and come into contact with the bird-repellent part 2. It also makes it possible to prevent a user from coming into contact with the bird-repellent part 2 and being injured when installing the bird-repellent device 1 on the structure T.

[0041] In this embodiment, the bottom corner where the bottom side 211 and the oblique side 212 are connected, and the bottom corner where the oblique side 213 and the bottom side 211 are connected are also arc-shaped when viewed in the axial direction. This makes it possible to more reliably prevent birds from being injured. It also makes it possible to more reliably prevent the user from being injured.

[0042] Figures 4A and 4B are views of the bird-repellent part 2 viewed in a direction intersecting the axial direction. As shown in Figures 4A and 4B, the bird-repellent part 2 is spring-shaped and elastically deformable in the axial direction. Figure 4A shows the bird-repellent part 2 in a state stretched in the axial direction. Figure 4B shows the bird-repellent part 2 in a state contracted in the axial direction.

[0043] The spring-shaped bird-proof part 2 can easily adjust the axial distance between the axially adjacent oblique sides 212, 213. This makes it possible to easily adjust the distance to a pitch suitable for birds that fly in. This makes it possible to more reliably prevent birds from flying into the structure T.

[0044] In this embodiment, the bird repellent part 2 is stretched in the axial direction when attached to the structure T. That is, the bird repellent part 2 has a short length in the axial direction in a natural state. This allows the bird repellent part 2 to be made compact when stored and carried. Therefore, it is possible to provide a bird repellent device 1 that is convenient to store and carry.

[0045] The metal material constituting the bird repellent part 2 is, for example, stainless steel, steel, aluminum, etc. In this embodiment, the bird repellent part 2 is made of stainless steel. This can improve the rigidity of the bird repellent part 2. In addition, the fire resistance and corrosion resistance of the bird repellent part 2 can be improved. Therefore, the durability of the bird repellent device 1 can be improved.

[0046] In this embodiment, the bird-repellent part 2 has an oxide coating layer on the surface. The oxide coating layer is formed by heat-treating stainless steel. Heat-treating stainless steel at a predetermined temperature causes it to develop a color, for example, red or brown. That is, the bird-repellent part 2 made of stainless steel and having an oxide coating layer on the surface is colored red, brown, or the like without using paint or the like. This allows a bird-repellent part 2 with a color close to that of the structure T, for example, red or brown, to be attached to the structure T. Therefore, it is possible to provide a bird-repellent part 2 that is easy to manufacture and does not spoil the scenery.

[0047] The bird-repellent part 2 made of the metal wire 21 can be manufactured, for example, by bending one metal wire three times per revolution so that it has a triangular shape when viewed in the axial direction. Therefore, the bird-repellent part 2 can be manufactured more easily than a bird-repellent device made of multiple members connected to each other by welding or the like.

[0048] The bird repellent part 2 is attached to a structure T by a plurality of attachment parts 3. FIG. 5 is a perspective view of the attachment parts 3. In this embodiment, the attachment parts 3 are L-shaped members. The attachment parts 3 have a fixing part 31 and a support part 32.

[0049] In this embodiment, as shown in Fig. 5, the fixing portion 31 is a rectangular flat plate. The fixing portion 31 has a plurality of fixing holes 33 penetrating in the thickness direction. As shown in Fig. 2, the mounting portion 3 is attached to the structure T by inserting the fixing members 5 into the plurality of fixing holes 33 of the fixing portion 31. The mounting portion 3 may be attached to the structure T by an adhesive or the like applied to the bottom surface of the fixing portion 31. The mounting portion 3 may be attached to the structure T by clamping the fixing portion 31 to the structure T. In this case, the fixing portion may not have fixing holes.

[0050] In this embodiment, the support portion 32 extends in the thickness direction of the fixed portion 31 from one edge of the fixed portion 31 when the fixed portion 31 is viewed in plan. Therefore, for example, the support portion 32 can be inserted between the bottom portions 211 adjacent to each other in the axial direction of the bird-repellent portion 2. Therefore, when the mounting portion 3 is attached to the structure T, the support portion 32 can support one of the multiple bottom portions 211 of the bird-repellent portion 2. The support portion may extend in the thickness direction from a position inside the edge when the fixed portion is viewed in plan. The support portion may also extend in the thickness direction from a part of the edge of the fixed portion.

[0051] In this embodiment, the support part 32 has a pair of clamping parts 34 each extending in the thickness direction. Each of the pair of clamping parts 34 is a rectangular flat plate. The pair of clamping parts 34 are disposed opposite each other. The bottom side 211 of the bird-repellent part 2 can be inserted between the pair of clamping parts 34. This allows the pair of clamping parts 34 to clamp the bottom side 211 of the bird-repellent part 2 from both sides in the axial direction.

[0052] As shown in Fig. 2, by attaching the fixing part 31 to the upper surface of the structure T to which the bird-repellent part 2 is attached, a pair of clamping parts 34 can be arranged to extend upward from the structure T and to face each other in the axial direction of the bird-repellent part 2. By inserting the bottom side 211 of the bird-repellent part 2 between the pair of clamping parts 34 arranged in this manner, the bottom side 211 is clamped by the pair of clamping parts 34 from both sides in the axial direction. Therefore, the bottom side 211 of the bird-repellent part 2 can be supported by the support part 32. Fig. 6 shows an enlarged view of one bottom side 211 of the bird-repellent part 2 inserted between the pair of clamping parts 34.

[0053] This allows the multiple oblique sides 212, 213 to be arranged to extend upward from the structure T. This makes it possible to prevent birds from flying into the structure T.

[0054] As shown in Fig. 7A, a part of the bottom side 211 and a part of one of the pair of oblique side portions 212, 213 may be inserted between the pair of clamping portions 34. As shown in Fig. 7B, only a part of the bottom side 211 may be inserted between the pair of clamping portions 34. Furthermore, as shown in Fig. 7C, in the case of a bird-repellent part 2 having a small dimension in the width direction, the bottom side 211 and a part of each of the two oblique side portions 212, 213 may be inserted between the pair of clamping portions 34.

[0055] 7A or 7C, when one or both of the oblique sides 212, 213 are inserted between the pair of clamping parts 34, the supporting part 32 also supports the inserted one or both of the oblique sides. Therefore, the supporting part 32 can support the bird-repellent part 2 more reliably.

[0056] In this embodiment, as shown in Figs. 5 and 6, the support part 32 has a through hole 35 penetrating in the thickness direction of the support part 32. For example, a string-like member 6 can be inserted into the through hole 35. In a state where the bird-repellent part 2 is attached to the structure T, the through holes 35 of the multiple attachment parts 3 are aligned in the axial direction of the bird-repellent part 2. Therefore, as shown in Fig. 2, by inserting the string-like member 6 into the multiple through holes 35, the string-like member 6 can be inserted into the inside of the spiral bird-repellent part 2 supported by the multiple attachment parts 3. This makes it possible to prevent the bird-repellent part 2 attached to the structure T from moving significantly. Note that, for example, a metal wire or the like may be inserted into the through hole.

[0057] The holding part 4 is circular when viewed in the thickness direction and has a dome shape with the central part in the thickness direction protruding upward. The holding part 4 is disposed above the bottom part 211 of the bird-repellent part 2 attached to the structure T. The holding part 4 is fixed to the structure T by a fixing member (not shown) in a state in which the bottom part 211 is sandwiched between the holding part 4 and the upper surface of the structure T.

[0058] 1 and 2 has five pressing parts 4. However, the number of pressing parts 4 may be four or less, or six or more. The number of pressing parts 4 may be determined according to, for example, the axial length of the bird-preventing part 2, or the number of base parts 211 of the bird-preventing part 2.

[0059] In addition, in the bird-prevention device 1 shown in Fig. 2, the multiple bottom edges 211 of the bird-prevention section 2 are fixed to the structure T by the retaining sections 4, one for each. However, of the multiple bottom edges of the bird-prevention section, all of the bottom edges other than the bottom edges fixed by the mounting sections may be fixed to the structure T by the retaining sections. The multiple bottom edges of the bird-prevention section may be fixed to the structure T by the retaining sections, one for each. Note that the retaining sections do not have to be arranged at equal intervals.

[0060] The holding unit 4 prevents the bottom portion 211 that it holds down from moving relative to the structure T. This makes it possible to suppress the generation of collision noise, for example, when the bottom portion 211 moves up and down relative to the top surface of the structure T and collides with the top surface of the structure T.

[0061] As described above, the exemplary bird-prevention device 1 of the present invention has the bird-prevention part 2 configured of a metallic wire 21 that is triangular when viewed in the axial direction and wound in a spiral shape extending in the axial direction, and the mounting part 3 for mounting the bird-prevention part 2 to a structure T. The bird-prevention part 2 has a plurality of base parts 211 extending in the width direction when viewed in the axial direction, and a plurality of pairs of oblique parts 212, 213 extending in the height direction. The mounting part 3 has a support part 32 configured to support at least a part of one of the plurality of base parts 211, and a fixing part 31 for fixing the support part 32 to the structure T.

[0062] In the bird repellent device 1 having the above-mentioned configuration, the bird repellent part 2 is composed of a spirally wound metal wire 21. Therefore, the bird repellent device 1 can be easily manufactured.

[0063] The bird-repellent part 2 has a triangular shape having a base part 211 extending in the width direction and a pair of oblique parts 212, 213 extending in the height direction when viewed in the axial direction. The mounting part 3 is configured to support the base part 211. The mounting part 3 configured to support the base part 211 can mount the bird-repellent part 2 to the structure T in a position where the apex part of the triangular bird-repellent part is located on the upper side. By mounting the bird-repellent part 2 to the structure T in this position, the multiple oblique parts 212, 213 can be arranged to extend upward from the structure T. This makes it possible to prevent birds from flying into the structure T.

[0064] Furthermore, in the bird-prevention device 1 configured as described above, multiple mounting parts 3 are attached at predetermined intervals to the structure T on which the bird-prevention device 1 is to be installed, and one of the multiple bottom parts 211 of the bird-prevention part 2 is supported by the support part 32 of each mounting part 3, thereby making it possible to attach the bird-prevention part 2 to the structure T. Therefore, the bird-prevention part 2 can be easily attached to the structure T.

[0065] Therefore, it is possible to provide a bird prevention device 1 that can be easily manufactured and easily installed.

[0066] In this embodiment, the bird-preventing part 2 is spring-shaped and elastically deformable in the axial direction. This allows the axial distance between the axially adjacent oblique side parts 212 and the axial distance between the axially adjacent oblique side parts 213 to be easily adjusted. Therefore, for example, the distance can be easily adjusted to a pitch suitable for birds that fly in. This makes it possible to more reliably prevent birds from flying into the structure.

[0067] When a spring-like member made of a spirally wound wire extending in the axial direction is elastically deformed in the axial direction, a force that rotates the spring-like member in the circumferential direction is generated. Therefore, by elastically deforming the member, the end of the wire constituting the member may move in the circumferential direction. Therefore, for example, in a spring-like bird-proof part that is circular when viewed in the axial direction, it is not easy to fix the end in the axial direction to the structure T by an attachment part.

[0068] In contrast, the spring-like bird-prevention part 2, which is triangular when viewed in the axial direction, has a bottom corner where the bottom side part 211 and the oblique side part 212 are connected, and a bottom corner where the bottom side part 211 and the oblique side part 213 are connected. Therefore, when the bird-prevention part 2 is elastically deformed in the axial direction, the bottom corner part prevents the bird-prevention part 2 from rotating in the circumferential direction. Furthermore, the attachment part 3 configured to support the bottom side part 211 of the bird-prevention part 2 more reliably prevents the bird-prevention part 2 from rotating in the circumferential direction. Therefore, in the bird-prevention device 1 having the above-mentioned configuration, for example, the axial end part of the bird-prevention part 2 can be fixed to the structure T by the attachment part 3. This makes it possible to more easily and reliably position the bird-prevention part 2 in the installation area of ​​the bird-prevention part 2 in the structure T.

[0069] (How to install bird-proof devices) 8A to 8F, an exemplary installation method of the bird repellent device 1 will be described. In this embodiment, the installation method of the bird repellent device 1 will be described when the bird repellent part 2 is attached to the installation area R of the structure T.

[0070] The installation method of the bird-prevention device 1 includes an attachment portion attachment step, a first bird-prevention portion attachment step, a bird-prevention portion deformation step, a second bird-prevention portion attachment step, a retainer portion attachment step, and a string-like member attachment step.

[0071] In the mounting portion attaching step, a plurality of mounting portions 3 are attached to the structure T. In this embodiment, two mounting portions 3a and 3b are attached to the structure T.

[0072] 8A, in the mounting portion mounting step, one mounting portion 3a of the two mounting portions 3a, 3b is mounted to the structure T such that the support portion 32a of the mounting portion 3a is located at position P1. The other mounting portion 3b is mounted to the structure T such that the support portion 32b of the mounting portion 3b is located at position P2. Position P1 is the position of one longitudinal end of the installation area R in the structure T where the bird repellent portion 2 is to be mounted. Position P2 is the position of the other longitudinal end of the installation area R in the structure T where the bird repellent portion 2 is to be mounted.

[0073] 8B, in the first bird-repellent part mounting step, one of the multiple bottom sides 211 of the bird-repellent part 2 is supported by the support part 32a. In this embodiment, for example, the bottom side 211a located at one end 2a in the axial direction of the bird-repellent part 2 is supported by the support part 32a. As a result, the one end 2a of the bird-repellent part 2 is positioned at position P1.

[0074] 8C, in the bird-repellent part deformation process, the bird-repellent part 2 is elastically deformed to have a predetermined length in the axial direction with the bottom part 211a supported by the support part 32a of the attachment part 3a. In this embodiment, in the bird-repellent part deformation process, the other end part 2b in the axial direction of the bird-repellent part 2 is extended to a position P2.

[0075] 8D, in the second bird-repellent part mounting step, the support part 32b supports another of the multiple bottom parts 211 of the bird-repellent part 2. In this embodiment, for example, the support part 32b supports the bottom part 211b located at the other end part 2b in the axial direction of the bird-repellent part 2 that has been extended to position P2. This positions the other end part 2b of the bird-repellent part 2 at position P2.

[0076] As shown in Fig. 8E, in the pressing part attachment step, the bottom parts 211 other than the bottom part 211a located at one end 2a in the axial direction of the bird-repellent part 2 and the bottom part 211b located at the other end 2b in the axial direction are fixed by the pressing parts 4. Fig. 8E shows a state in which three of the multiple bottom parts 211 are fixed by three pressing parts 4.

[0077] As shown in FIG. 8F, in the string-like member attaching step, the string-like member 6 is passed through the through-holes 35 of the attachment portions 3a and 3b.

[0078] Through the above-mentioned steps, the bird-repellent part 2 is attached to the structure T between the position P1 and the position P2.

[0079] In the above-described installation method, in the first bird-prevention unit mounting step, one of the multiple bottom portions 211 of the spring-like bird-prevention unit 2 that elastically deforms in the axial direction is fixed to the structure T. In this state, the bird-prevention unit 2 is elastically deformed in the axial direction, and in the second bird-prevention unit mounting step, the other bottom portion 211 is fixed to the structure T. Therefore, the spring-like bird-prevention unit 2 can be easily mounted to the structure T. Therefore, it is possible to provide an installation method for the bird-prevention device 1 that allows easy installation.

[0080] In this embodiment, in the first bird-preventing part mounting step, the bottom side 211a located at one end 2a in the axial direction of the bird-preventing part 2 is supported by the support part 32a of the mounting part 3a, and in the second bird-preventing part mounting step, the bottom side 211b located at the other end 2b in the axial direction of the bird-preventing part 2 is supported by the support part 32b of the mounting part 3b. However, in the first bird-preventing part mounting step, the bottom side 211 other than the bottom side 211a may be supported by the support part 32a of the mounting part 3a. In the second bird-preventing part mounting step, the bottom side 211 other than the bottom side 211b may be supported by the support part 32b of the mounting part 3b.

[0081] This makes it possible to adjust the interval between the axially adjacent oblique sides 212 and the interval between the axially adjacent oblique sides 213 in the bird-repellent part 2 to a pitch suitable for approaching birds, for example. This makes it possible to more reliably prevent birds from approaching the structure T.

[0082] In the present embodiment, the mounting portion 3b is attached to the position P2 in the mounting portion attachment step, and then the first bird-proof portion attachment step is performed. However, for example, the mounting portion 3b may be attached to the position P2 after the first bird-proof portion attachment step is performed.

[0083] (Other embodiments) Although the embodiment of the present invention has been described above, the above-mentioned embodiment is merely an example for carrying out the present invention. Therefore, the present invention is not limited to the above-mentioned embodiment, and it is possible to carry out the above-mentioned embodiment by appropriately modifying it within the scope of the gist of the present invention.

[0084] 5 is one configuration example of the mounting part for mounting the bird-prevention part 2 to the structure T. The mounting part for mounting the bird-prevention part may have another configuration as long as it has a support part configured to support at least a part of one of the multiple base parts of the bird-prevention part, and a fixing part that fixes the support part to the structure T.

[0085] FIG. 9 shows another example of the configuration of the mounting part for mounting the bird-repellent part 2 to the structure T. The mounting part 103 shown in FIG. 9 is formed of a single wire bent into a predetermined shape. By using the mounting part 103, the bird-repellent part 2 can be mounted, for example, to an H-shaped steel as the structure T. FIG. 10 is a diagram explaining a method for mounting the bird-repellent part 2 to the structure T using the mounting part 103. FIGS. 10A and 10B are views of the structure T viewed in the axial direction of the bird-repellent part 2 to be mounted to the structure T. FIG. 10C is a view of the structure T viewed in a direction intersecting the axial direction.

[0086] As shown in FIG. 9, the attachment part 103 has a fixing part 131 and a support part 132. The support part 132 has a pair of clamping parts 134. Each of the pair of clamping parts 134 is configured in a frame shape by metal wires extending along the first imaginary plane. The pair of clamping parts 134 are disposed facing each other in a direction intersecting with the first imaginary plane. Therefore, the bottom part 211 of the bird-repellent part 2 can be inserted between the pair of clamping parts 134. The support part 132 configured in this way can also support the bottom part 211.

[0087] The fixing part 131 is configured in a frame shape by metal wires extending in a direction intersecting with the first imaginary plane. As shown in Fig. 9 and Fig. 10A, a gap is formed between the fixing part 131 and the supporting part 132. As shown in Fig. 10B, a plate-shaped portion of the structure T can be inserted into the gap. This enables the fixing part 131 to fix the supporting part 132.

[0088] With the mounting part 103 attached to the structure T, the support part 132 extends upward from the structure T. Therefore, as shown in Fig. 10C, the support part 132 can support the bottom part 211 of the bird-repellent part 2.

[0089] In the above embodiment, the bird prevention device 1 has two mounting parts 3. However, the bird prevention device may have one or more than two mounting parts.

[0090] In the above embodiment, the bird prevention device 1 has the pressing portion 4. However, the bird prevention device does not have to have the pressing portion.

[0091] In the above embodiment, the bird-repellent part 2 has a height L2 greater than a width L1 when viewed in the axial direction. However, the bird-repellent part may have the width L1 and height L2 equal to each other. The bird-repellent part may have the height L2 smaller than the width L1.

[0092] In the embodiment, one of the pair of oblique side portions 212, 213, the oblique side portion 212, and the other oblique side portion 213, have the same length. That is, the bird-repellent part 2 has an isosceles triangular shape when viewed in the axial direction. However, one of the pair of oblique side portions and the other oblique side portion may have different lengths. The bird-repellent part may have a triangular shape other than an isosceles triangular shape when viewed in the axial direction.

[0093] In the embodiment, the angle D1 between the bottom side 211 and the oblique side 212 is 65 degrees. The angle D2 between the bottom side 211 and the oblique side 213 is 65 degrees. However, the angle D1 may be greater than 65 degrees or less than 65 degrees. The angle D2 may be greater than 65 degrees or less than 65 degrees. It is preferable that the angles D1 and D2 are each 45 degrees or more. It is more preferable that the angles D1 and D2 are each 65 degrees or more. This makes it possible to more reliably prevent birds from staying on the oblique side portions 212 and 213. Therefore, it is possible to more reliably prevent birds from flying into the structure T.

[0094] In the embodiment, the apex corner where the oblique side portion 212 and the oblique side portion 213 are connected is arc-shaped when viewed in the axial direction. The base corner where the base side portion 211 and the oblique side portion 212 are connected, and the base corner where the oblique side portion 213 and the base portion 211 are connected are arc-shaped when viewed in the axial direction. However, the apex corner does not have to be arc-shaped when viewed in the axial direction. The base corner does not have to be arc-shaped when viewed in the axial direction. For example, the apex corner and the base corner may be corners.

[0095] When forming the bird-repellent part 2 by bending a single metal wire into a triangular shape, it is easier to manufacture the bird-repellent part if the bent part is in an arc shape than if it is in a corner shape. Therefore, when manufacturing the bird-repellent part by bending a single metal wire, it is easier to manufacture the bird-repellent part if the apex corner and the base corner are in an arc shape than if they are in a corner shape.

[0096] In the above embodiment, the bird-proof part 2 is stretched in the axial direction when attached to the structure T. However, the bird-proof part may be contracted in the axial direction when attached to the structure T. The bird-proof part may be attached to the structure T without being deformed in the axial direction.

[0097] In the above embodiment, the bird-proof part 2 is spring-shaped and elastically deformable in the axial direction. However, the bird-proof part may have a structure that does not deform in the axial direction.

[0098] In the above embodiment, the bird-repellent part 2 is provided with an oxide coating layer on the surface. However, the bird-repellent part does not have to be provided with an oxide coating layer on the surface. In other words, the bird-repellent part may have a metallic color.

[0099] In the above-described embodiment, the support portion 32, 132 of the attachment portion 3, 103 has a pair of clamping portions 34, 134. However, the support portion only needs to be configured to support at least a part of one of the multiple base portions of the bird-proof portion, and does not necessarily have to have a pair of clamping portions.

[0100] In the mounting portion attaching step in the above embodiment, two mounting portions 3a and 3b are attached to the structure T. However, in the mounting portion attaching step, three or more mounting portions may be attached to the structure T. For example, another mounting portion may be attached between the mounting portion attached to the position P1 and the mounting portion attached to the position P2.

[0101] Also, for example, if the structure T has a hook-shaped member on which a metal wire can be hooked, one axial end of the bird-repellent part can be hooked onto the hook-shaped member. Therefore, in the mounting part attachment step, one mounting part for fixing the other axial end of the bird-repellent part may be attached to the structure T. [Industrial Applicability]

[0102] INDUSTRIAL APPLICABILITY The present invention can be used in a bird-prevention device that prevents birds from flying into a structure. [Explanation of symbols]

[0103] 1. Bird-prevention devices 2. Bird protection 2a One end 2b Other end 21 Wire rod 211, 211a, 211b bottom 212 Hypotenuse (one of a pair of hypotenuses) 213 Hypotenuse (the other of a pair of hypotenuses) 3, 3a, 3b, 103 Mounting part 31, 131 Fixed part 32, 32a, 32b, 132 Support part 33 Fixing hole 34, 134 Pair of clamping parts 35 Through hole 4 Holding part 5 Fixing material 6. String-like member D1: Angle between the base and one of the pair of oblique sides D2: The angle between the base and the other of the pair of oblique sides L1 Width of bird-proof part L2 Height of bird-proof part R Bird-proof installation area

Claims

1. A bird prevention device to be installed on a structure, comprising: a bird-preventing portion that is triangular when viewed in the axial direction and is formed of a metal wire that is wound in a spiral shape extending in the axial direction; An attachment portion for attaching the bird repellent portion to the structure; having The bird repellent part is A plurality of base portions extending in a width direction as viewed in the axial direction; A plurality of pairs of oblique sides extending in a height direction; having The mounting portion is A support portion configured to support at least a portion of one of the plurality of base portions; A fixing portion that fixes the support portion to the structure; A bird-proof device having

2. The bird prevention device according to claim 1, The bird repellent part is The spring is elastically deformable in the axial direction. Bird prevention device.

3. The bird prevention device according to claim 1, an angle formed between the base portion and one of the pair of oblique side portions, and an angle formed between the base portion and the other of the pair of oblique side portions are each 65 degrees or more; Bird prevention device.

4. The bird prevention device according to claim 1, An apex portion where one of the pair of oblique side portions is connected to the other oblique side portion is arc-shaped when viewed in the axial direction. Bird prevention device.

5. The bird prevention device according to claim 1, The bird repellent part is It is made of stainless steel, The bird-repellent part has an oxide coating layer on its surface. Bird prevention device.

6. The bird prevention device according to claim 1, The support portion is A bird-proof device having a pair of clamping portions that clamp the one base portion from both sides in the axial direction.

7. A method for installing a bird prevention device according to any one of claims 2 to 6, comprising the steps of: a mounting portion attaching step of attaching the plurality of mounting portions to the structure; a first bird-proof part mounting step of supporting one of the plurality of bottom parts by the support part of one of the plurality of mounting parts; a bird-prevention part deformation process for elastically deforming the bird-prevention part to have a predetermined length in the axial direction in a state in which the one base part is supported by the support part of the one mounting part; a second bird-prevention part mounting step of supporting another one of the plurality of bottom parts of the elastically deformed bird-prevention part by the support part of another one of the plurality of mounting parts; having How to install bird deterrent devices.

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