JP5248416B2 - Bird damage prevention equipment and bird damage prevention equipment installation method. - Google Patents

Description

  The present invention relates to a bird damage prevention device and a method for attaching a bird damage prevention device, and more specifically, it can be easily attached to a structure (wall) having an opening, and has excellent durability and appearance of the structure. The present invention relates to a bird damage prevention device and a method for attaching the bird damage prevention device that can surely prevent the entry of a bird without impairing the damage.

  In recent years, wild birds, mainly pigeons, crows, etc. invade the verandas and passage openings of structures such as middle-rise houses or high-rise houses (also called condominiums) to sprinkle feces and feathers and perform nesting work. There is a lot of damage to do. The wild bird body, feces, feathers, and the like have factors that adversely affect the human body, such as parasites, viruses, and bacteria.

  The parasites are mainly mites, pigeon lice, lice, etc., and cause itching and rash on the human body. Viruses and bacteria present in feces cause diseases such as parrot disease and pneumonia in the human body. In addition, the fine powder spilling from the feathers causes allergies to the human body.

  Such a factor that adversely affects the human body easily spreads inside the apartment by the invasion of wild birds once, and pollutes the inside of the apartment. For this reason, the invasion of wild birds into the interior is a major problem for residents living in condominiums.

  Therefore, in order to prevent the invasion of wild birds, conventionally, a predetermined net having a fine mesh is stretched in the opening of a veranda or the like, and the wild bird physically invades from the opening. The method of preventing it is adopted.

  On the other hand, when a predetermined net is stretched at the opening of the outer wall of the building, the stretched net can be easily seen from the outside and deteriorates due to the influence of sunlight (ultraviolet rays). There is a problem that (landscape) gets worse.

  Therefore, in order to solve the above problem, Japanese Patent Application Laid-Open No. 2000-110229 (Patent Document 1) is stretched to the opening of the outer wall of the building and from the outside to the inside of the building through this opening. In a birdproof net for preventing the flying or intrusion of harmful birds, the bird netting is characterized in that the mesh thread is black or brownish brown.

  In this configuration, the mesh thread color is black or brown tea, so that when viewed from the outside of the building, the mesh thread is assimilated into the background and can no longer be seen, preventing the arrival or invasion of harmful birds such as pigeons and crows. However, it is said that it can suppress the damage of the building landscape due to the presence of the net.

JP 2000-110229 A

  However, in the technique described in Patent Document 1, although the scenery of the building is not impaired, the netting material of the stretched bird net is made of chemical fiber such as nylon (trade name), so it is still durable. There is a problem that is bad. For example, if the product is made of chemical fiber, the bird's net can be used for about 7 years at the longest. If it is used more than that, the net of the bird's net will be cut to prevent the invasion of wild birds. Can no longer do.

  In addition, since the bird-proof net made of chemical fiber mesh is highly flexible, the shape of the bird-proof net can be changed and deformed in accordance with the shape of various openings. However, there is a problem that the upper end and the lower end of the bird net have to be fixed with a plurality of fixing brackets. If the peripheral edge of the bird net is not fixed at multiple locations, it will be bent by its own weight.

  FIG. 13 is a schematic view showing a state in which a conventional bird net is attached to a structure (wall) in the vicinity of the opening.

  As shown in FIG. 13, it is understood that the fixing metal fittings 12 of the bird net 11 are attached everywhere in the peripheral end region of the opening 6 of the veranda. As described above, when the bird net is attached, there is a problem that much time and labor are required by attaching the fixing metal fitting and adjusting the dimensions of the bird net.

  In recent years, there is a tendency to reduce the number of fixing brackets by providing long frame units at the upper end and lower end of the bird net, but in this configuration, the work of connecting the bird net and the frame unit On the other hand, a new problem arises that the bird net with the frame unit cannot be easily attached to various opening shapes.

  Once the bird net is fixed to the structure (wall) in the vicinity of the opening, the residents of the apartment cannot easily go out from the inside while the outsiders can easily enter the inside of the apartment. I can't do that either. For this reason, in the event of a fire, residents cannot be immediately evacuated to the outside, and outside fire brigade members cannot easily enter the interior, and the bird net prevents the rescue operation and develops into a major disaster. There is also a fear.

  Therefore, the present invention has been made to solve the above problems, and as a result of intensive research conducted by the present inventor, it is easy to form a structure (wall) having an opening based on an innovative idea. To provide a bird damage prevention device that can be attached, has excellent durability, and can reliably prevent the invasion of a bird without impairing the appearance of the structure, and a method for attaching the bird damage prevention device. With the goal.

In order to solve the above-described problems and achieve the object, the bird harm prevention device according to the present invention includes a mesh body whose outer periphery is surrounded by a frame line, and a frame line between the mesh bodies arranged adjacent to each other. A connecting metal fitting to be connected, and a hanging metal fitting attached to the structure for suspending an upper end portion of the connection net body in which a plurality of the net bodies are connected by the connection metal fitting to a predetermined height position of the structure, Prepare . And it is the predetermined net | network body which comprises the said connection network body, Comprising: Only one frame line of the said network body is connected with the frame line of the 1st net body adjacent to the said network body by the said connection metal fitting. And a net that is hung on a latch provided on a frame of the second net adjacent to the net, the other frame of the net facing the one frame. It is characterized by that.

  The shape of the mesh body may be any shape such as a round shape, an elliptical shape, a triangular shape, a quadrangular shape, a hexagonal shape, an octagonal shape, and a polygonal shape.

  The mesh shape of the mesh body may be any shape such as a round shape, an elliptical shape, a triangular shape, a quadrangular shape, a hexagonal shape, an octagonal shape, and a polygonal shape.

  It is preferable that the mesh of the mesh body has such a size that a bird cannot enter. Furthermore, it is preferable that the mesh of the mesh body has a lattice shape.

  The size of the net is preferably a size that can be carried by a user's hand.

  The connecting bracket is a ring, ring with bolt, plate series, hook, U bolt, carabiner, ring catch, chain catch, C ring, swivel, bolt / nut combination, turn buckle, thimble, S can, anchor, wire clip Stainless steel mooring ring, stainless steel cut, stainless steel wire rope, spiky key, stainless steel hose joint, safety bar, etc. The material can be arbitrarily selected from metal, synthetic resin, and the like.

  The connection fitting is wound around a frame line of one network body and a frame line of another network body adjacent to the one network body for each adjacent network body of the connection network body. It is preferable to connect the frame lines.

  It is preferable that the hanging metal fitting is attached to an upper end portion of the opening of the structure.

  Furthermore, the connection fitting can be configured to be a coil spring.

  Furthermore, the bird harm prevention tool can be configured to include a fastener attached to the structure for fastening a frame line at an end of the connection net.

The method for attaching a bird harm prevention tool according to the present invention includes a hanging metal fitting attaching step for attaching a hanging metal fitting to a structure, and a frame line at the upper end of a net body surrounded by a frame line on the hanging metal fitting. A suspension step for suspending, a coupling step for coupling frame lines of the mesh body with a coupling metal fitting in a state where the mesh body is disposed adjacent to the suspended mesh body, and the coupling network Only one frame line of the predetermined mesh body constituting the body is connected to the frame line of the first mesh body adjacent to the network body by the connecting metal fitting, and the mesh body facing the one frame line An emergency exit creating step of creating another mesh line as an emergency exit by hooking another frame line to a latch provided on the frame line of the second mesh body adjacent to the mesh body .

  Furthermore, the attachment method includes a fastener attachment step of attaching a fastener to the structure, and a step of fastening an end portion of a connection mesh body in which a plurality of the mesh bodies are connected by the connection bracket to the fastener. It can be configured as follows.

  Furthermore, the attachment method connects only one frame line of the predetermined mesh body among the connection mesh bodies to the frame line of the first mesh body adjacent to the mesh body, and the connection fitting. Create the net body as an emergency exit by hooking the other frame line of the net facing the one frame line to the latch provided on the frame line of the second net adjacent to the net body. It can be configured to have an emergency exit creation step.

  According to the bird damage prevention device of the present invention, a net body whose outer periphery is surrounded by a frame line, a connecting metal fitting for connecting the frame lines of the net bodies arranged adjacent to each other, and the net body is the connection metal fitting And a suspension fitting attached to the structure for suspending the upper ends of the plurality of connection nets connected to each other at a predetermined height position of the structure.

  As a result, since the bird damage prevention device is composed of a net body whose outer periphery is surrounded by a frame line, it has excellent transportability and can be easily damaged by the net body hanging work and the connecting metal fitting work. Since the prevention tool can be configured, the time required for attaching the bird damage prevention tool can be dramatically reduced.

  Furthermore, the connection fitting can be configured to be a coil spring.

  As a result, in the constructed bird damage prevention device, the coil spring serves as a hinge portion, and the bird damage prevention device as a whole can be bent and bent. Therefore, the shape of the opening of various structures (for example, the left-right direction) The shape of the opening of a building having a curved line) can be easily modified and appropriately attached to the opening.

  Furthermore, the bird harm prevention tool can be configured to include a fastener attached to the structure for fastening a frame line at an end of the connection net.

  As a result, it becomes possible to appropriately fix the bird damage prevention device to the structure. For example, the vibration of the bird damage prevention device due to the influence of the outside (wind, rain, etc.) on the opening of a building such as an apartment, It is possible to reliably prevent rocking, detachment and the like. In addition, it is possible to prevent the generation of cutting noise due to the mutual contact between the nets, and to maintain a comfortable living space.

  Further, the bird harm prevention tool is configured such that only one frame line of the predetermined mesh body is connected to the frame line of the first mesh body adjacent to the mesh body by the connection fitting. In addition, a net body is provided that is hooked to a hook metal fitting provided on the frame line of the second net body adjacent to the net body, with respect to the other frame line of the net body facing the one frame line. It can be configured as follows.

  As a result, even if the bird damage prevention device is attached to the entire opening of the veranda or the like, the predetermined mesh body is disposed so as to be openable and closable with respect to the attached connecting mesh body when the latching metal is removed. Therefore, the network body can be used as an emergency exit. Therefore, even if a fire breaks out, the emergency exit makes it possible for residents to evacuate to the outside instantly, and it is possible for outside firefighters to easily enter the interior, and to facilitate smooth rescue activities. Can do. Moreover, it becomes possible to attach a bird harm prevention tool to an opening part without violating rules, such as the Fire Service Act.

  Further, according to the bird damage prevention device mounting method of the present invention, the hanging metal fitting attaching step for attaching the hanging metal fitting to the structure and the frame line at the upper end of the net body surrounded by the frame line A suspending step for suspending from a hanging metal fitting, and a connecting step for connecting the frame lines of the mesh body with a linking metal fitting in a state where the mesh body is disposed adjacent to the suspended net body, Have

  As a result, the work of attaching the hanging metal fitting, the work of hanging the mesh body to the hanging metal fitting, the frame line of the suspended mesh body, and the frame line of the adjacent mesh body are connected with the connecting metal fitting. Through a series of simple operations of connecting, it is possible to attach the bird protection tool to a structure (for example, an opening of the structure) while assembling.

  In addition, since the whole bird damage prevention device is configured to be divided for each net body, a plurality of hanging metal fittings, a plurality of netting bodies, and a plurality of connecting metal fittings are held at the opening of a structure such as a veranda. Therefore, even if the opening has various sizes, it is possible to immediately and appropriately adjust the size of the bird damage prevention tool and attach it to the opening. For this reason, conventionally, when installing a bird net, it is necessary to create an illustration and cut the bird net according to the illustration. It takes more than 6 days and completes the installation on that day. I couldn't. In the bird damage prevention device mounting method according to the present invention, it is not necessary to create illustrations and cut the bird protection net, and the time required for mounting the bird damage prevention device is the time required for conventional attachment work. Compared with, it is possible to dramatically shorten. Furthermore, the nets that make up the bird damage prevention tool have a predetermined shape retaining property, so the number of hanging fittings can be dramatically reduced compared to conventional bird damage prevention equipment made of mesh thread. Therefore, it is possible to further simplify the mounting operation and improve the efficiency of the mounting time.

  Furthermore, the attachment method includes a fastener attachment step of attaching a fastener to the structure, and a step of fastening an end portion of a connection mesh body in which a plurality of the mesh bodies are connected by a connection bracket to the fastener. Can be configured.

  Thereby, it becomes possible to attach a bird damage prevention tool firmly to a structure. Further, the net body constituting the bird harm prevention tool has a predetermined shape retaining property, and the fastener is only required to be attached at a position for fastening the end of the connecting net body, and thus is made of a conventional net thread. Compared with a bird damage prevention tool, it is possible to dramatically reduce the number of attachments of fasteners, and it is possible to further simplify the attachment work and increase the efficiency of the attachment time.

  Furthermore, the attachment method connects only one frame line of the predetermined mesh body among the connection mesh bodies to the frame line of the first mesh body adjacent to the mesh body, and the connection fitting. Create the net body as an emergency exit by hooking the other frame line of the net facing the one frame line to the latch provided on the frame line of the second net adjacent to the net body. It can be configured to have an emergency exit creation step.

  As a result, it is possible to create an emergency exit without increasing the number of new parts, and the creation method is very simple. Furthermore, since the emergency exit is created in units of network bodies, any network body selected by the user among the connected network bodies can be installed as an emergency exit. Therefore, the emergency exit can be created at an appropriate position according to the shape of the structure, the shape of the opening of the outer wall of the building, and the configuration of the building, and the flexibility of the bird damage prevention tool is further improved.

  In general, according to the bird damage prevention device and the bird damage prevention device attachment method of the present invention, it is possible to easily attach to the opening of the outer wall of the structure, and it has excellent durability and impairs the appearance of the building. Therefore, it is possible to reliably prevent birds from entering.

It is the schematic which shows the state which attached the bird damage prevention tool which concerns on embodiment of this invention to the structure (wall) near an opening part. It is the schematic which shows one net of the bird harm prevention tool which concerns on embodiment of this invention. It is the schematic which shows one coil spring of the bird harm prevention tool which concerns on embodiment of this invention. It is a schematic front view which shows the winding aspect of the coil spring wound around the frame line of the adjacent net body. It is the schematic which shows the hanging metal fitting of the bird harm prevention tool which concerns on embodiment of this invention. It is the schematic which shows the fastener of the bird harm prevention tool which concerns on embodiment of this invention. It is the schematic which shows the fastening aspect of the fastener which fastened the frame line of the adjacent net body, or the coil spring. It is the 1st schematic diagram showing the attachment process of the bird harm prevention implement concerning the embodiment of the present invention. It is the 2nd schematic which shows the attachment process of the bird harm prevention tool which concerns on embodiment of this invention. It is a 3rd schematic diagram which shows the attachment process of the bird damage prevention tool which concerns on embodiment of this invention. It is the schematic which shows the state which attached the bird damage prevention tool which concerns on this invention to the opening part of the apartment which has a curved surface in the left-right direction. It is the schematic which shows the state by which the predetermined net body which comprises a bird damage prevention tool is arrange | positioned as an emergency exit. It is the schematic which shows the state which attached the bird-proof net of the prior art to the structure (wall) near the opening part.

  DESCRIPTION OF EMBODIMENTS Embodiments of a bird damage prevention device and a bird damage prevention device mounting method according to the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not.

  FIG. 1 is a schematic view showing a state in which a bird harm prevention tool according to an embodiment of the present invention is attached to a structure (wall) in the vicinity of an opening. The vertical direction in FIG. 1 corresponds to the vertical direction of the bird damage prevention tool, and the horizontal direction in FIG. 1 corresponds to the horizontal direction of the bird damage prevention tool.

  As shown in FIG. 1, the bird damage prevention tool 1 includes a plurality of nets 2, a plurality of connecting fittings 3, a hanging fitting 4, and a fastener 5. The bird damage prevention tool 1 is composed of a connecting wire mesh 2 connected by a coil spring 3 which is a connecting fitting, and is suspended by a hanging fitting 4 provided on a structure (ceiling) in the vicinity of the upper end of the opening 6 of the veranda. It is fastened with fasteners 5 provided respectively on the structure (column wall) near the left end of the opening 6 of the veranda and the structure (barrapet or handrail of the veranda) near the lower end. Although the right end of the opening 6 of the veranda is not shown in FIG. 1, it is the same as the left end of the opening 6 shown in FIG. 1, and a fastener 5 is attached to the structure (wall) near the right end. The bird damage prevention tool 1 is fastened to the fastener 5 at the right end.

  FIG. 2 is a schematic diagram showing one net 2 of the bird harm prevention tool 1 according to the embodiment of the present invention. FIG. 2A is a front view of the mesh body 2, and FIG. 2B is a right side view of the mesh body 2. 2 corresponds to the vertical direction of the mesh body 2, and the horizontal direction of FIG. 2 corresponds to the horizontal direction of the mesh body 2.

  As shown in FIG. 2, the net body 2 employs a configuration in which the outer periphery is surrounded by a frame line. Further, the net body 2 is made of a wire net, and has a square mesh size in a lattice shape that a bird cannot enter, and has a size that can be carried by a user's hand.

  For example, the mesh body 2 includes a plurality of wires made of iron or stainless steel (hereinafter referred to as upper and lower wires 21) arranged in parallel with each other at a predetermined interval 2a, and a plurality of wires made of iron or stainless steel or the like. A wire rod (hereinafter referred to as a left and right wire rod 22) intersects with the upper and lower wire rods 21 at right angles and is arranged in parallel with each other at a predetermined interval 2b. An intersection between the upper and lower wire rods 21 and the left and right wire rods 22 is welded and fixed by spot welding or the like. The frame line of the net body 2 is composed of upper and lower wire rods at the end of the net body 2 and left and right wire rods at the end of the net body 2.

  About the size which a bird cannot invade, the arrangement space | interval of the up-and-down wire 21 is determined by the kind of bird. The design is appropriately changed depending on the number of the upper and lower wire rods 21 and the left and right wire rods 22 and the arrangement intervals 2a and 2b. For example, when a bird to be excluded from intrusion is set to a pigeon, the vertical dimension (interval 2b of the arrangement shown in FIG. 2) of the mesh is determined by the strength so as not to be opened by the force of the pigeon. In addition, the horizontal dimension of the mesh is set to 10 to 3 cm, and the number of the upper and lower wire rods 21 and the left and right wire rods 22 and the arrangement intervals 2a and 2b are determined accordingly. In addition, it is not preferable that the vertical dimension of the mesh is equal to the horizontal dimension because the mesh shape is approximately square and birds can easily enter. The dimensions of the square mesh that is so large that a bird cannot enter shown in FIG. 2 is set such that the diameter of the upper and lower wire 21 is 1.6 mm and the diameter of the left and right wire 22 is 2.0 mm. The dimension is 250 cm, the dimension in the left-right direction is 5 cm, and correspondingly, the number of the upper and lower wires 21 is 13, the spacing 2a between the upper and lower wires 21 is 5 cm, the number of the left and right wires 22 is 4, The interval 2b of the arrangement of the wire is set to 250 cm. When the vertical wire 21 is made thinner, the vertical distance 2b between the left and right wires 22 is set to be narrower.

  Further, when the mesh body 2 is configured so as to have a square mesh of a size that a bird cannot invade into a lattice shape, the wire rod (the upper and lower wire rods 21 or the left and right wire rods 22) of the mesh body 2 can be formed with a tool such as a nipper. Even if it cuts and changes a size, since it becomes possible to comprise the shape of the whole mesh body 2 in a substantially square shape, the shape of the mesh body 2 is easily adjusted to the shape along the opening part of a structure. This is preferable.

  The dimensions of the mesh body 2 that can be carried by the user and can be manufactured at low cost are related to the dimensions and the number of meshes, and the dimensions and the number of the upper and lower wires 21 and the dimensions and the number of the left and right wires 22. It is decided according to. For example, similarly to the above, when the bird to be excluded is set as a pigeon, the size of the upper and lower wires 21 is 700 to 1200 cm, the number of the upper and lower wires 21 is 10 to 15, the size of the left and right wires 22 is 500 to 700 cm, The number of the left and right wires 22 is designed to be 3-7. The dimensions of the mesh body 2 having dimensions that can be carried by the user's hand shown in FIG. 2 are 750 cm in the vertical direction, 13 pieces in the vertical direction, 600 cm in the horizontal direction, and 4 pieces in the horizontal direction. It is.

  The diameter of the upper and lower wires 21 and the diameter of the left and right wires 22 should be as thin as possible in order to make them inconspicuous in appearance. However, the dimensions are such that they are not easily deformed by physical contact with a bird to be prevented from entering. Preferably there is.

  The diameter of the upper and lower wires 21 is designed to be an appropriate diameter so that the mesh body 2 is not easily deformed during the mounting operation to the opening 6 and has a predetermined mechanical strength during transportation. For example, if the upper and lower wires 21 are stainless steel wires, the diameter is preferably 1.0 to 2.5 mm. The diameter of the upper and lower wires 21 shown in FIG. 2 is 1.6 mm. Further, the diameter of the left and right wire rods 22 is such that the net body 2 can be easily bent in the left-right direction during attachment to the opening 6, and a predetermined shape retaining property is imparted after attachment. In addition, it is designed to have an appropriate diameter. For example, if the left and right wire 22 is a stainless wire, it is preferably 1.0 to 3.5 mm. The diameter of the left and right wire rod 22 shown in FIG. 2 is 2.0 mm.

  FIG. 3 is a schematic view showing one coil spring 3 of the bird harm prevention tool 1 according to the embodiment of the present invention. FIG. 3A is a perspective view of the coil spring 3, and FIG. 3B is a front view of the coil spring 3. The vertical direction in FIG. 3 corresponds to the vertical direction of the coil spring 3, and the horizontal direction in FIG. 3 corresponds to the horizontal direction of the coil spring 3.

  As shown in FIG. 3, the coil spring 3 has a plurality of nets 2 adjacent to each other and arranged in the opening 6 of the outer wall of the building. It is comprised so that it may wind around the wire of an edge part, and the wire of the edge part of the other net | network adjacent to the said one net | network.

  That is, the outer diameter 31 of the coil spring 3 connects the diameter of the upper and lower wires 21 or the left and right wires 22 of the mesh body 2, the number of windings around the end of the mesh body 2, and the mesh body 2. Therefore, it is designed to have an appropriate outer diameter in consideration of the mounting workability of the bird damage prevention tool 1 and the mutual strength of the net body 2. If the outer diameter 31 of the coil spring 3 is too small, it will be difficult to wind the frame lines of the mesh body 2 and the attachment time required for the attachment work of the bird harm prevention tool 1 may be prolonged. On the other hand, if the outer diameter 31 of the coil spring 3 is too large, the strength of the mesh bodies 2 is weakened, and the mesh bodies 2 may be easily detached. For example, it is preferable that the outer diameter 31 of the coil spring 3 is 5 to 10 mm in order to easily combine the mesh bodies 2 and to give a predetermined strength to the connection between the mesh bodies 2. The outer diameter 31 of the coil spring 3 shown in FIG. 3 (B) is 8 mm. When the outer diameter 31 of the coil spring 3 is within the above-described range, an appropriate clearance is generated between the connecting nets 2 via the coil spring 3. The clearance has an effect of alleviating the undulation phenomenon, which is a phenomenon in which the entire bird damage prevention device 1 undulates even if the net body 2 is greatly swung by the wind or the like.

  Further, since the total length 32 of the coil spring 3 is related to the number of windings described above and the coupling force, it is appropriate in consideration of the workability of mounting the bird damage prevention device 1 and the mutual strength of the net 2. Designed to a full length. If the total length 32 of the coil spring 3 is too long, the number of times the mesh body 2 is wound around the frame line increases, and the attachment time of the bird harm prevention tool 1 may be prolonged. On the other hand, if the total length 32 of the coil spring 3 is too short, the coupling force between the adjacent mesh bodies 2 is reduced, and the mesh bodies 2 may be easily detached from each other. For example, the total length 32 of the coil spring 3 is preferably 30 to 100 mm in order to easily connect the mesh bodies 2 to each other and to give a predetermined strength to the bonds between the mesh bodies 2. The total length 32 of the coil spring 3 shown in FIG. 3 (B) is 80 mm.

  Further, the winding pitch 33 of the coil spring 3 is related to the workability of winding the mesh body 2 around the frame line. Is done. Here, the winding pitch means the distance between the wires in the left-right direction around which the wire constituting the coil spring 3 is wound, as shown in FIG. If the winding pitch of the coil spring 3 is too long or too short, the winding workability may be reduced. For example, in order to enable the coil spring 3 to be easily wound, the winding pitch 33 of the coil spring 3 is preferably 4 to 8 mm. The winding pitch 33 of the coil spring 3 shown in FIG. 3 (B) is 4 or 5 mm.

  Further, the wire diameter 34 of the coil spring 3 is related to the mechanical strength of the coil spring 3 itself and the above-described coupling force, so that it is designed to have an appropriate wire diameter in consideration of the mutual strength of the mesh body 2. Is done. Here, the wire diameter 34 of the coil spring 3 refers to the diameter of the wire constituting the coil spring 3, as shown in FIG. If the wire diameter of the coil spring is too small, the mesh bodies 2 may be easily detached even if they are wound around the frame lines of the mesh bodies 2. On the other hand, if the wire diameter of the coil spring 3 is too large, the winding work may not be performed due to the mechanical strength of the coil spring 3 itself. For example, the wire diameter 34 of the coil spring 3 is preferably 0.2 to 1.5 mm so that the coil spring can be easily wound. The wire diameter 34 of the coil spring 3 shown in FIG. 3 (B) is 0.8 mm.

  Next, the winding mode of the coil spring 3 wound around the frame line of one mesh body 2 and the frame line of another mesh body 2 adjacent to the one mesh body 2 and the winding method thereof will be described. To do.

  FIG. 4 is a schematic front view showing a winding mode of the coil spring 3 wound around the frame lines of the adjacent nets 2. The vertical direction in FIG. 4 corresponds to the vertical direction of the winding mode of the coil spring 3, and the horizontal direction in FIG. 4 corresponds to the horizontal direction of the winding mode of the coil spring 3.

  The winding mode of the coil spring 3 includes a mode in which one coil spring 3 is wound around two mesh bodies 2 (first mode) and a mode in which one coil spring 3 is wound around four mesh bodies 2 (second mode). A mode) and a mode (third mode) in which two coil springs 3 are wound around four mesh bodies 2 exist.

  FIG. 4 (A1) or FIG. 4 (A2) is a schematic front view showing the first aspect described above.

  In the first aspect, as shown in FIG. 4 (A1) or FIG. 4 (A2), the two mesh bodies are arranged adjacent to each other, and the frame lines of the adjacent mesh bodies are one coil spring 341a. The wound mode is shown.

  The winding method of the first aspect is as follows. First, the upper net body 342a and the lower net body 343a are arranged adjacent to each other, and the frame lines of the upper and lower adjacent net bodies are overlapped with each other, or the frame lines are in close proximity to each other. FIG. 4A1 shows a state in which the lower frame line 344a of the upper mesh body 342a and the upper frame line 345a of the lower mesh body 343a are brought close to each other. In this state, the coil springs 341a are rotated around the frame wires of adjacent mesh bodies while the wire rods of the coil springs 341a are aligned with each other, and the coil springs 341a are rotated. When the coil springs 341a are all wound around the frame lines, the two mesh bodies are connected via the coil springs (FIG. 4 (A1)). Since the coil spring has an appropriate elasticity, as shown in FIG. 4A1, the two mesh bodies can be bent in the vertical direction via the coil spring. 4A1 shows a mode in which the vertical frame lines are connected to each other by using coil springs at the corner portions (corner portions) of the mesh body, and in FIG. 4A2, the horizontal frame lines are shown. The mode which connected mutually using the coil spring in the center part (or center vicinity) of the edge part of a net | network body is shown. 4A2 is the same as FIG. 4A1, and the description thereof is omitted. The first aspect is mainly used when the frame lines in the vertical direction or the horizontal direction are connected by a coil spring among the connection networks adjacent to each other.

  FIG. 4B is a schematic diagram showing the second aspect described above.

  In the second mode, as shown in FIG. 4B, in a state where the four mesh bodies are arranged adjacent to each other vertically and horizontally, the frame lines of the adjacent mesh bodies are wound around by one coil spring 341b. The embodiment is shown.

  The winding method of the second aspect is as follows. First, four nets are arranged adjacent to each other. In FIG. 4B, an upper left net 342b, a lower left net 343b, an upper right net 344b, and a lower right net 345b are arranged adjacent to each other. Next, the lower frame line 346b of the upper left net 342b and the upper frame line 347b of the lower left net 343b are brought close to each other, and the lower frame line 348b of the upper right net 344b is The frame 349b above the right net 345b is brought into close proximity. In this state, similarly to the winding method of the first aspect, the coil spring 341b is rotated and wound around the frame lines of the adjacent mesh bodies as the substantial rotation axis. In the second mode, half of the coil spring 341b to be wound is wound around the lower frame line 346b of the upper left mesh 342b and the upper frame line 347b of the lower left mesh 343b shown in FIG. 4B. The other half is wound around the upper frame line 349b of the lower right net 345b and the lower frame line 348b of the upper right net 344b shown in FIG. 4B. The ratio of the coil springs wound around the left and right mesh groups may not be the left and right halves, but the left and right halves are preferred because the four mesh bodies are connected in a balanced manner. When one coil spring 341b is all wound around the frame lines of the four mesh bodies, the four mesh bodies are connected via the coil spring 341b (FIG. 4B). In the second mode shown in FIG. 4 (B), the upper and lower nets can be bent by one coil spring 341b, and the left and right nets can be connected with appropriate strength via the coil spring 341b. It becomes possible. A 2nd aspect is employ | adopted mainly when connecting the mesh bodies located in the center among the several mesh bodies adjacent to each other with a coil spring.

  FIG. 4C is a schematic diagram showing the third aspect described above.

  In the third mode, as shown in FIG. 4C, the frame lines of the adjacent mesh bodies are wound around each other by two coil springs in a state where the four mesh bodies are arranged adjacent to each other vertically and horizontally. An aspect is shown. The coil spring wound in the left-right direction is referred to as the left-right coil spring 341c, and the coil spring wound in the up-down direction is referred to as the upper-lower coil spring 342c.

  The winding method of the third aspect is as follows. First, four nets are arranged adjacent to each other. In FIG. 4C, the upper left mesh 343c, the lower left mesh 344c, the upper right mesh 345c, and the lower right mesh 346c are arranged adjacent to each other. Next, the lower frame line 347c of the upper left mesh 343c and the upper frame line 348c of the lower left mesh 344c are brought close to each other, and the lower frame line 349c of the upper right mesh 345c is The frame line 3410c above the right mesh body 346c is brought into close proximity. In this state, similar to the winding method of the second aspect, the four mesh bodies are connected using the left and right coil springs 341c. In this case, half of the left and right coil springs 341c to be wound are wound around the lower frame line 347c of the upper left mesh 343c and the upper frame line 348c of the lower left mesh 344c shown in FIG. The other half is wound around the upper frame line 3410c of the lower right net 346c and the lower frame line 349c of the upper right net 345c shown in FIG. Further, the four mesh bodies are connected using the upper and lower coil springs 342c. Half of the upper and lower coil springs 342c to be wound are wound around the right frame line 3411c of the upper left mesh body 343c and the left frame line 3412c of the upper right mesh body 345c shown in FIG. The other half is wound around the right frame line 3413c of the lower left net 344c and the left frame line 3414c of the lower right net 346c shown in FIG. 4C. When the two coil springs are all wound around the frame lines of the four mesh bodies, the four mesh bodies are connected via the two coil springs (FIG. 4C). With this configuration, the frame lines of the four mesh bodies are connected to each other by the two coil springs having a cross shape. Therefore, in the third aspect, as shown in FIG. 4 (C), the four mesh bodies have an appropriate coupling force, and the four mesh bodies are vertically or horizontally arranged with two coil springs as hinges. Can be bent. A 3rd aspect is employ | adopted mainly when connecting the mesh bodies located in the center among the several mesh bodies adjacent to each other with a coil spring.

Next, the hanging metal fitting 4 of the bird harm prevention tool 1 according to the embodiment of the present invention will be described.
FIG. 5 is a schematic view showing the hanging metal fitting 4 of the bird harm prevention tool 1 according to the embodiment of the present invention. FIG. 5A is a schematic cross-sectional view showing an attachment mode of the hanging metal fitting 4, and FIG. 5B is a schematic diagram showing members constituting the hanging metal fitting 4. The vertical direction in FIG. 5 corresponds to the vertical direction of the hanging bracket 4, and the horizontal direction in FIG. 5 corresponds to the horizontal direction of the hanging bracket 4.

  As shown in FIG. 5 (A), the hanging metal fitting 4 is installed on a structure (ceiling) in the vicinity of the upper end portion of the opening, and a predetermined mesh body arranged at an upper end portion among the plurality of mesh bodies. An upper frame line 252a of 251a is configured to be suspended from above the opening 6.

  Specifically, as shown in FIGS. 5A and 5B, the hanging metal fitting 4 includes a hook metal fitting 41, a hanging metal fitting 42, a washer 43, a packing 44, a concrete screw 45, and the like. And a plug 46.

  The hook metal fitting 41 is formed by curving both ends of a predetermined wire, and a cutting portion corresponding to the inlet portion 411 is formed in the vicinity of the center of the main body. The cutting portion 412 from above is formed from below. It is comprised so that the inner wall of the cutting part 413 may be engaged from the inside. The engaged state acts as a detachment against the frame line of the mesh body due to the mutual contact of the cutting parts 412 and 413. With this configuration, it is possible to easily insert the frame line 252a of the mesh body into the inside from the inlet portion 411 and suspend it from the lower curved portion 414, and the suspended wire 252a causes the inlet portion 411 to be suspended. It does not easily come off from the lower curved portion 414. In FIG. 5B, the inlet portion 411 of the hook metal fitting 41 faces the outside (right direction), but may be configured to face the inside (left direction). It is preferable to face the inside because the workability of attaching a mesh body, which will be described later, is improved.

  The hanging metal fitting 42 is formed in a U shape by bending a predetermined wire at the center, and at the position spaced from the bent central portion 421 by a predetermined distance 422, It is formed by further bending at a predetermined angle α with respect to the vertical direction of the bending direction (vertical direction in FIG. 5B). With this configuration, the upper bent portion 415 of the hook fitting 41 through which one wire of the hanging fitting 42 is inserted is fastened at the position of the central portion 421 of the hanging fitting 42, and the hook fitting 41 is placed at a predetermined height. It can be fixed. The predetermined distance 422 is preferably adjusted in a range from 1/6 to 1/8 with respect to the left and right overall length of the hanging metal fitting 42 formed in a U shape.

  In addition, the washer 43 has a circular shape, and is provided with a through hole 431 at the center thereof through which the concrete screw 45 penetrates, and is further bent along a predetermined radial direction of the circle. .

  The packing 44 is made of an elastic material having weather resistance, has a flat circular shape, has a predetermined thickness, and has a through-hole that allows the concrete screw 45 to pass through the center thereof. 441 is provided.

  The concrete screw 45 has a diameter capable of penetrating through the through hole 431 of the washer 43, the through hole 441 of the packing 44, and the opening of the U-shaped suspension fitting 42, and on the concrete outer wall. It has a predetermined length that does not easily come off once screwed into the attached plug 46. The plug 46 is formed in a cylindrical shape so as to be screwable with the concrete screw 45.

  Next, the clasp 5 of the bird harm prevention tool 1 according to the embodiment of the present invention will be described.

  FIG. 6 is a schematic diagram showing the fastener 5 of the bird harm prevention tool 1 according to the embodiment of the present invention. FIG. 6A is a schematic diagram of the fastener 5 and FIG. 6B is a schematic diagram showing a deformed state of the U-shaped bracket constituting the fastener. Note that the vertical direction in FIG. 6 corresponds to the vertical direction of the fastener, and the horizontal direction in FIG. 6 corresponds to the horizontal direction of the fastener.

  As shown in FIGS. 1 and 6A, the fastener 5 is installed on a structure (wall) in the vicinity of the left end of the opening 6, and a predetermined net located at the end of the plurality of nets. A body frame is configured to be fastened at the end of the opening. Note that the installation position of the fastener 5 is the same whether it is a structure near the right end of the opening or a structure near the lower end.

  Specifically, as shown in FIG. 6A, the fastener 5 includes a U-shaped bracket 51, a concrete screw 52, a washer 53, a packing 54, and a plug 55. The concrete screw 52, the washer 53, the packing 54, and the plug 55 are the concrete screw 45, the washer 43, the packing 44, and the plug 55 of the hanging metal fitting 4 described above. Since it is the same as that of the plug 46, the description is omitted.

  The U-shaped metal fitting 51 is formed in a U shape by bending a predetermined wire at the center. The U-shaped metal fitting 51 passes through the wire rods of the mesh bodies so that the wire rods of the adjacent mesh bodies are sewed together, and the frame wires are bent to each other at the bent portion 511 of the U-shaped metal fitting 51. By fixing with, the adjacent net 2 is fixed with the opening 6.

  The U-shaped bracket 51 is made of a metal (for example, stainless steel) that can be easily deformed by the user. Therefore, it is possible to deform the shape of the U-shaped bracket 51 according to the installation position of the fastener 5 and to appropriately fix the adjacent net body 2. For example, as shown in FIG. 6 (B), the U-shaped bracket 51 is configured to bend the fixing bracket main body 51 at a predetermined distance 513 from the U-shaped folded center portion 512. Is bent at a predetermined angle β with respect to the vertical direction (vertical direction in FIG. 6B), and further, the fixing bracket main body 51 is placed in the vertical direction at a position spaced by a predetermined distance 515 from the bent portion 514. (Vertical direction in FIG. 6B) is formed by being bent perpendicularly. With this configuration, it is possible to flexibly change the shape of the clasp according to the shape of the opening 6 on the outer wall of the building, and to appropriately attach the bird harm prevention tool 1.

  Next, a description will be given of a fastening mode of a fastener in which the frame lines of adjacent mesh bodies or coil springs are fastened to a structure (wall) in the vicinity of the end of the opening.

  FIG. 7 is a schematic view showing a fastening manner of fasteners to which adjacent mesh bodies are fastened to each other or coil springs. Note that the vertical direction in FIG. 7 corresponds to the vertical direction of the fastener, and the horizontal direction in FIG. 7 corresponds to the horizontal direction of the fastener.

  The fastening mode of the fastener includes a fastening mode (wire fastening mode) for fastening the frame lines of adjacent meshes to a structure near the end of the opening, and a coil spring for connecting the adjacent meshes. There is a fastening mode (coil spring fastening mode) of a fastener that is fastened to a structure near the end of the opening.

  FIG. 7A is a schematic front view showing a wire rod fastening mode of a fastener at the left end of the opening.

  The wire rod fastening mode is performed by the following method. As shown in FIG. 7 (A), the wire rod of the U-shaped bracket 51 related to the fastener 5 is divided into the left and right wire rods 702a (lower frame line) at the lower end of the upper mesh member 701a, and the lower mesh member. It passes between the upper and lower wire rods 705a of the upper mesh body 701a and the upper and lower wire rods 706a of the lower mesh body 703a so as to sew the left and right wire rods 704a (upper frame line) above 703a. Then, the left and right wire rods 702a at the lower end of the upper mesh body 701a and the left and right wire rods 704a above the lower mesh body 703a are hooked on the bent portion 511 of the U-shaped metal fitting 51, and the wire rods 702a, 704a is fastened by the bent portion 511. Thereby, it becomes a wire rod fastening aspect. In the said aspect, it fixes appropriately with the said fastener, without the position of the wire materials of the edge part of the clamped two net | network bodies shifting | deviating.

  In addition, in the wire rod fastening mode described above, the wire rod of the U-shaped bracket 51 related to the fastener 5 is fastened to the two frame lines, but any of the plurality of wire rods constituting the net body You may comprise so that the wire of the said U-shaped metal fitting 51 may be fastened to one wire.

  FIG. 7B is a schematic front view showing a coil spring fastening aspect of a fastener in a structure near the lower end of the opening.

  The coil spring fastening mode is performed by the following method. As shown in FIG. 7B, the wire rod of the U-shaped metal fitting 51 relating to the fastener is connected to the upper and lower wire rods 702b (left frame line) at the left end of the left net 701b and the right wire. The wire constituting the coil spring 705b wound around the upper and lower wire rods 704b (right frame wire) at the right end of the mesh body 703b is passed between the wire rods of the coil spring 705b so as to sew. Then, the wire rod of the coil spring 705 b is hooked on the bent portion 511 of the U-shaped metal fitting 51, and the wire rods 702 b and 704 b are fastened by the bent portion 511. Thereby, it becomes a coil spring fastening aspect. When the coil spring 705b is fastened with the U-shaped metal fitting 51, the coil spring 705b is stretched toward the hook metal fitting 5 side (downward in FIG. 7B), and then the wire material of the coil spring 705b is attached to the U-shaped metal fitting 51. It is preferable to fasten at the bent part 511 of the character-shaped metal fitting 51. With this configuration, the coil spring 705b pulls the nets 701b and 703b downward due to the restoring force, and the bird damage prevention device 1 is stretched over the opening 6, so that the bird damage prevention device 1 is opened. It becomes possible to attach firmly to the structure near the portion 6.

  In the above-described coil spring fastening mode, the coil spring 705b that is wound is used to be fastened to the fastener 5. However, the fastener 5 is provided using a coil spring for the fastener 5 (tension spring). You may comprise so that it may stop. In that case, the left mesh body is inserted so that the tension spring to which a predetermined tension is applied passes through the left and right wire members 706b of the left mesh member 701b and the left and right wire members 707b of the right mesh member 703b. The upper and lower wires 702b at the right end of 701b and the upper and lower wires 704b at the left end of the right net 703b are wound in advance, and the U-shaped fitting 51 is fastened to the tension spring. That's fine. Since the detailed method is the same as that described above, it is omitted.

  The wire rod fastening mode or the coil spring fastening mode can be adopted at any position of the structure in the vicinity of the left and right end portions and the lower end portion among the end portions of the opening 6, but the wire rod fastening mode. Is mainly a structure in the vicinity of the left and right ends of the opening, and the coil spring fastening mode is mainly employed in a structure in the vicinity of the lower end of the opening.

  Next, the attachment method of the bird harm prevention tool which concerns on embodiment of this invention is demonstrated.

  FIG. 8 thru | or FIG. 10 is schematic which shows the attachment process of the bird damage prevention tool which concerns on embodiment of this invention. 8 to 10 corresponds to the up and down direction of the bird damage prevention tool 1, and the left and right directions of FIGS. 8 to 10 correspond to the left and right direction of the bird damage prevention tool 1.

  As shown in FIG. 8A, first, the hanging metal fitting 4 is attached to the structure near the upper end of the opening 6 to which the bird damage prevention tool is to be attached (step 1, FIG. 8A).

  The attachment position of the hanging metal fitting 4 attached to the structure near the upper end of the opening 6 is the horizontal dimension of the opening 6 and the horizontal dimension of the net 2 suspended from the hanging metal fitting 4. It is decided according to. Since the bird harm prevention tool 1 is composed of a plurality of nets 2 having shape retention, at least the positions of the upper ends of the openings 6 corresponding to the positions of the upper ends of the plurality of nets 2 connected, If the two hanging brackets 4 are attached, the bird harm prevention tool 1 can be attached to the opening 6. When the bird damage prevention device 1 is firmly attached to a structure in the vicinity of the opening 6, for example, as shown in FIG. 8A, the opening 6 corresponding to the positions of the left and right ends 81 of one net body Two hanging fittings 4 are attached to each net 2 at the position of the structure near the upper end. In FIG. 8 (A), in order to arrange the three nets 2 adjacent to each other in the left-right direction in the left-right direction of the opening 6, six hanging brackets 4 are attached.

  As shown in FIGS. 5 (A) and 5 (B), a method of attaching the hanging metal fitting 4 is as follows. First, a concrete drill or the like is placed at a predetermined position near the upper end of the opening 6. A hole having a predetermined length in the vertical direction is provided by a drilling machine corresponding to the diameter of the plug 46. Next, after fitting the plug 46 in the hole, the hook metal fitting 41 of the hanging metal fitting 42 to which the hook metal fitting 41 is fastened in advance is disposed at a predetermined height position of the opening 6. The opening of the suspension fitting 42 is aligned with the hole of the plug 46. Further, the packing 43 and the washer 44 are arranged on the opening of the suspension fitting 42 so that the hole of the plug 46 matches the through hole of the packing 43 and the through hole of the washer 44. Then, the concrete screw 45 is threaded into the hole of the plug 46 after passing through the through hole of the washer 44, the through hole of the packing 43, and the opening of the suspension fitting 42. Since the packing 43 is an elastic body, when the concrete screw 45 is screwed into the hole of the plug 46, the packing 43 is deformed between the suspension fitting 42 and the washer 44, so that the suspension fitting 42 is firmly secured to the washer 44. As a result, the hanging metal fitting 4 can be firmly fixed above the opening 6 of the veranda. In addition, when attaching the hanging metal fitting 4, if it attaches so that the entrance part of the hook metal fitting 41 which concerns on the hanging metal fitting 4 may be located in the direction which goes to the inside from the opening part 6 of a veranda, the frame line above the net body 2 mentioned later Can be easily hung on the hook metal fitting 41.

  Next, the frame line of the upper end part of the predetermined net body 2 is hung on the hanging metal fitting 4 for each attached hanging metal fitting 4 (step 2, FIG. 8 (B)).

  As shown in FIG. 5 (A), the frame line 252a at the upper end of the predetermined mesh body 251a is moved from the inlet 411 of the hook fitting 41 related to the attached hanging fitting 4 to the upper side of the hook fitting 41. When pressed against the outer wall of the cutting portion 413 and inserted inside, the frame line 252a at the upper end of the net 251a is hooked inside the curved end 414 below the hook fitting 41.

  Then, the plurality of nets 2 are arranged adjacent to the downward direction of the opening 6 with respect to the suspended nets (step 3). Next, in a state where a plurality of nets 2 are adjacent to each other and arranged in the opening 6 of the outer wall of the building, for each adjacent net 2, a frame of one net and the one net A coil spring is wound around the frame line of another mesh body adjacent to (step 4, FIG. 8C).

  The manner and method of winding the coil spring 3 have already been described above with reference to FIG. Of course, the first mode, the second mode, and the third mode shown in FIG. 4 are appropriately selected and used in accordance with the position of the coil spring 3 to be wound, the number of nets 2, the shape of the opening 6 of the veranda, and the like. . As a result, the plurality of nets 2 cover the entire surface of the opening 6 and are arranged vertically and connected to each other. The lower net body 2 is arranged so as to cover from the outside to the inside when it is arranged at the lower end of the opening (handrail of a ballet or a veranda).

  When the coil spring 6 is wound, it is necessary for a plurality of workers to simultaneously arrange the plurality of nets 2 in the opening 6. Therefore, it is sufficient for one worker to lay the mesh body 2 adjacent to the suspended mesh body 2 one by one and wind the coil spring 3 around each adjacent mesh body 2. The operation can be performed.

  Moreover, the arrangement | positioning operation | work of the net body 2 mentioned above, and the winding operation | work of the coil spring 3 can be started from any position of the opening part 6. FIG. This corresponds to the fact that it is not necessary to frequently change the work place according to the shape and configuration of the opening 6 of the veranda, and that the placement work and the winding work can be performed in a concentrated manner. The arrangement work of the mesh body 2 and the winding work of the coil spring 3 can be started from an arbitrary position. This is because danger is avoided in advance when the bird damage prevention device 1 is attached to the opening 6 of the veranda located at a high place. Can be a big advantage.

  Furthermore, when the winding of the coil spring 3 is completed, it is preferable that a part of the circular shape of the coil spring 3 is deformed into a substantially oval shape and crushed by a tool such as pliers or nippers. As a result, even if the mesh body 2 swings and the coil spring 3 rotates, the coil spring 3 is not unwound and the position of the coil spring 3 does not move.

  With the connecting net 2 covering the entire surface of the opening 6 and arranged vertically and horizontally, the fastener 5 is attached to a predetermined position of the structure near the end of the opening 6 (step 5, FIG. 9 (D)).

  The position and the number of the fasteners 5 to be attached are the arrangement state of the plurality of attached mesh bodies 2, the dimensions of the openings 6, the shape of the openings 6, and the dimensions of the plurality of mesh bodies 2 in the left-right direction. It is decided according to. Since the bird damage prevention tool 1 is composed of a plurality of nets 2 having a predetermined weight, once suspended, the bird damage prevention tool 1 is fixed to the opening 6 to some extent by its own weight. The harm prevention tool 1 can be firmly fixed. Although the position and number of the fasteners 5 are adjusted as appropriate, when the connecting mesh body 2 is firmly attached to the opening 6, for example, the frame of the mesh body adjacent in the vertical direction among the end mesh bodies. One fastener is disposed on the line mutual 82, and one fastener 5 is disposed on the coil spring 83 that connects the mesh bodies adjacent in the left-right direction. In FIG. 9D, two nets 2 are adjacent in the vertical direction and three nets 2 are adjacently arranged in the opening 6 in the left-right direction. Two fasteners 5 are attached to both ends, two fasteners 5 are attached to the lower end, and four fasteners 5 are attached.

  Since the method of attaching the fastener 5 is the same as the method of attaching the hanging bracket 4 described above, a description thereof will be omitted. In addition, the position which attaches the fastener 5 is designed suitably according to the fastening aspect mentioned later.

  When the fastener 5 is attached, the frame line of a predetermined mesh located at the end of the connecting mesh is fastened to the fastener 5 and the bird damage prevention tool 1 is fixed at the opening to prevent bird damage. The tool mounting operation is completed (step 6).

  When a predetermined mesh frame is fastened to the fastener 5, either the wire rod fastening mode or the coil spring fastening mode shown in FIG. 7 is employed. The said aspect is suitably selected and used properly according to the number of the net | network bodies 2, the shape of the opening part 6 of a veranda, etc. In FIG. 9D, a wire rod fastening mode is adopted at the left and right ends of the opening 6, and a coil spring fastening mode is adopted at the lower end of the opening.

  If it is desired to attach the bird damage prevention tool more firmly, the coil spring 3 or the fastener 5 may be added. For example, as shown in FIG. 10 (E), an additional coil spring 84 is added to the upper and lower (or left and right) middle portions of the frame borders for each pair of upper and lower meshes. You may wind, and you may fasten the up-and-down wire (or frame line) near the edge part of a lower net | network body to the fastener 85 installed additionally.

  Now, a description will be given of a private experiment result when the bird damage prevention device 1 according to the above-described embodiment is actually attached to the opening 6 of the outer wall of the building.

  The bird's net shown in the prior art or the embodiment of the present invention in the opening of the veranda provided in one room of a predetermined apartment (the horizontal dimension is 1.8 m and the vertical dimension is 1.5 m) The attachment time required for attachment when such a bird damage prevention tool was attached was calculated.

  First, the attachment time for the bird net will be described.

  When a bird net is attached, the bird net before attachment is almost the same as a normal net, so it is necessary to cut it according to the size of the opening of the veranda. Therefore, I went to the site in advance and made an illustration of the veranda opening.

  The method for creating the illustration is to go to the site and accurately measure the horizontal dimension of the opening of the veranda using a predetermined surveying instrument, and to determine the vertical dimension of the opening. I measured it with the dimension including the surplus and made an illustration. It took a day to create the illustration.

  Next, a predetermined net cutting company was requested to cut the birdproof net. I handed an illustration to a net cutting company and cut a bird net according to the number of nets on the net. It took 5 days to cut the bird net. At this point, it took 6 days (about 1 week) to obtain a bird net that could be attached to the opening of the veranda.

  And it went to the opening part of the veranda, and the fixing metal fitting (attachment metal fitting) for bird-proof nets was attached to the predetermined position of the opening part concerned. As shown in FIG. 13, when the birdproof net 11 is attached to the fixing metal 12, the birdcage net 11 hangs down by its own weight without being held in shape by the fixing metal 12, thereby forming an opening. Therefore, it is necessary to attach a plurality of fixing brackets 12 at a predetermined interval. When the horizontal dimension of the opening 6 of the veranda is 1.8 m, in order to make the size of the opening where the sagging part cannot enter a bird, the veranda is set at intervals of about 0.15 m. It is necessary to attach the fixture 12 to the structure (wall) near the upper end of the opening 6 and the structure (wall) near the lower end. The number of the fixtures 12 was 12 at the upper end and 12 at the lower end. Also, in order to prevent an opening caused by the sagging of the bird net 11 even in a structure (wall) in the vicinity of the left and right ends of the opening 6 of the veranda, the vertical dimension of the opening 6 of the veranda is 1.5 m. In this case, the number of the fixing brackets 12 is 10 at the left end and 10 at the right end. In total, 44 fixtures 12 were necessary. Since it took about 5 minutes to install one fixing bracket 12, it took 220 minutes to mount all the fixing brackets 12.

  After attaching all the fixtures 12, the cut bird net 11 was attached to the fixtures 12. Since it took about 2 minutes to attach the end of the bird net 11 to one fixing metal 12, it took 44 minutes to attach the bird net 11 to all the fixing metal 12.

  This completes the attachment of the bird net 11. When the time required for creating the illustration and the time required for cutting the bird net are included in the time for attaching the bird net 11, the time required for the installation is 6 days or more. Further, when the time required for creating the illustration and the time required for cutting the bird net were excluded, the total time for attaching the bird net 11 was 264 minutes (4 hours 24 minutes).

  Next, the attachment time with respect to the bird damage prevention tool which concerns on embodiment of this invention is demonstrated.

  The bird harm prevention tool 1 according to the embodiment of the present invention is attached to a structure in the vicinity of the opening 6 of the veranda having the same floor layout as the opening of the veranda to which the above-described bird net 11 is attached.

  First, when the bird damage prevention tool 1 is attached, the bird damage prevention tool 1 is configured by connecting a plurality of nets 2, and therefore it is not necessary to measure the size of the opening 6 of the veranda. It is only necessary to bring the plurality of nets 2, the plurality of coil springs 3, the plurality of hanging brackets 4, and the plurality of fasteners 5 constituting the bird harm prevention tool 1 to the site. This time, the net 2 having a horizontal dimension of 0.6 m and a vertical dimension of 1.0 m was brought to the site.

  Then, a plurality of hanging metal fittings 4 were attached to predetermined positions on the structure (ceiling) in the vicinity of the opening 6 of the veranda. When the hanging metal fitting 4 is attached, since the net body has a predetermined shape retaining property, it is sufficient to install two hanging metal fittings corresponding to both ends of the net body for one net body. Since the horizontal dimension of the opening 6 of the veranda is 1.8 m and the horizontal dimension of one mesh body is 0.6 m, three mesh bodies are connected to the opening 6 on the left and right. It's enough. Therefore, six suspension fittings 4 were attached to the structure near the upper end of the opening 6. The attached state is as shown in FIG. Since it took about 5 minutes to install one hanging bracket 4, it took 30 minutes to mount all the hanging brackets 4.

  Next, after attaching all the hanging fittings 4, the net body 2 was suspended from the two hanging fittings 4. Since it took about 2 minutes to suspend one net 2, it took 6 minutes in total. The attached state is as shown in FIG.

  Furthermore, the nets 2 were arranged adjacent to the suspended net 2 and connected by a coil spring 3. Since two coil springs 3 were used for one mesh body 2, a total of six coil springs were used for three mesh bodies. Since the winding work of one coil spring 3 took about 2 minutes, it took 12 minutes in total. The attached state is as shown in FIG.

  Since the vertical dimension of the opening 6 of the veranda is 1.6 m, when two nets 2 having a vertical dimension of 1.0 m are arranged adjacent to each other in the vertical direction, the length becomes about 0.4 m. End up. Therefore, the dimension of the bird harm prevention tool 1 in the vertical direction was adjusted by cutting the corresponding wire rod with a nipper or the like in the elongated net body. Since only the wire was cut, the adjustment took about 6 minutes.

  And the fastener 5 was attached. In the opening 6 of the veranda, the six mesh bodies 2 are arranged adjacent to each other, so that two fasteners 4 and a lower end of the opening 6 are provided on the structure (wall) in the vicinity of the left and right ends of the opening 6. Two fasteners 4 were attached to the structure (wall) in the vicinity of the part, and four fasteners 4 were attached in total. Since it took about 5 minutes to fasten one fastener 4, it took 20 minutes to attach all the fasteners 4. The attached state is as shown in FIG.

  Finally, the six mesh bodies 4 were fastened to the fasteners 4 and fixed to the openings 6. Since it took about 2 minutes to fasten one fastener 4, it took 12 minutes to fasten all the fasteners 4.

  This completes the installation of the bird protection tool. The total installation time of the bird damage prevention equipment was 80 minutes (1 hour and 20 minutes).

  Thus, it can be understood that the attachment time of the bird damage prevention device 1 is dramatically reduced as compared with the attachment time of the bird protection net 11. In addition, the installation of the bird damage prevention device 1 does not require the creation of an illustration and the cutting of the bird protection net, and it is immediately possible to bring a plurality of nets 2 constituting the bird damage prevention device 1 to the site immediately. Since the installation is started, the convenience is greatly improved. In particular, when the bird damage prevention tool 1 is attached to the opening 6 such as a veranda, the opening 6 is usually located at a relatively high place, and therefore the user's installation work always involves a danger. Under such conditions, shortening the attachment time and simplifying the attachment work eliminate as much danger as possible from the attachment work, which is a great merit for the user who handles the bird harm prevention tool 1.

  Next, a private experiment result is described regarding the service life (durability) of the bird harm prevention implement according to the embodiment.

  When the bird net 11 is attached to the above-described opening, the bird net 11 is composed of a string (mesh yarn) such as a chemical fiber, and thus wears due to rain, wind, snow, etc. in the outside world, and is about 7 Some had been cut off in about a year. The useful life of chemical fibers such as nylon (trade name) employed in the bird net 11 is about 10 years.

  On the other hand, when the bird damage prevention tool 1 is attached to the opening 6 described above, each member of the bird damage prevention tool 6 is made of stainless steel and thus is hardly affected by the outside world. For example, since the wire rod of the bird body of the bird protection device 1 uses a stainless steel wire having a service life of 20 years or more, the service life of the bird protection device 1 as a whole is 20 years or more. Estimated.

  Thus, it is understood that the service life of the bird harm prevention tool 1 has been dramatically extended as compared with the service life of the bird net 11.

  Finally, a private experiment result is described regarding the visibility of the bird harm prevention tool according to the embodiment.

  When the bird net 11 is attached to the above-described opening 6 of the veranda, the bird net 11 is difficult to visually recognize from the outside because the rope is composed of black or brown as described in the prior art. . However, when the color of the outer wall of a building such as a veranda is white, it is noticeable even if the rope is black or brown, and the appearance of the building is impaired.

  On the other hand, when the bird damage prevention tool 1 is attached to the opening 6 described above, each member of the bird damage prevention tool 1 is made of a glossy metal and constitutes the bird damage prevention tool 1. Since the wire rod of the net 2 is thin, it is difficult to stand out even if it is stretched around the opening 6. Furthermore, since the color of the outer wall of a building such as a veranda is made of metal, it is inconspicuous without being affected by the color. As a result, the appearance of the entire veranda was not impaired.

  Thus, it is understood that the visibility of the bird damage prevention tool 1 does not impair the scenery of the building as compared with the visibility of the bird net 11.

  Therefore, the bird damage prevention device 1 according to the embodiment of the present invention can be easily attached to the opening 6 of the outer wall of the building, has excellent durability, and does not impair the appearance of the building. It is possible to reliably prevent this.

  By the way, the bird damage prevention tool 1 described above is composed of a plurality of nets 2, a plurality of coil springs 3, a plurality of suspension fittings 4, and a plurality of fasteners 5. Since it can be bent in the left-right direction, or can be bent in the up-down direction or the left-right direction using the coil spring 3 as a hinge portion, the bird damage prevention tool 1 as a whole can be changed into various shapes.

  FIG. 11 is a schematic view showing a state in which the bird harm prevention apparatus according to the present invention is attached to an opening of a condominium having a curved surface in the left-right direction.

  As shown in FIG. 11, even if the opening 69 of a condominium having a predetermined portion extending and having a semicircular curve in the left-right direction, the net 2 constituting the bird harm prevention tool 1 is appropriately left and right. By curving in the direction, it is possible to deform and adjust the bird harm prevention tool 1 into a shape that matches the shape of the opening 69. In addition, the bird damage prevention device 1 whose shape has been deformed and adjusted has shape retaining properties as described above, so that it can be sufficiently hung with a relatively small number of hanging metal fittings 4, and once deformed. The bird damage prevention tool 1 can keep the adjusted shape as it is to prevent the bird from entering. Naturally, the predetermined maintenance for the bird damage prevention tool 1 is not required.

  Thus, according to the bird damage prevention device 1 of the present invention, the mesh body 2 whose outer periphery is surrounded by a frame line, and the coil spring 3 that connects the frame lines of the mesh body 2 disposed adjacent to each other. A suspension fitting 4 attached to the structure for suspending the upper end of the connection mesh 2 in which a plurality of the mesh bodies 2 are connected by a coil spring 3 to a predetermined height position of the structure.

  As a result, the bird damage prevention device is composed of a net body whose outer periphery is surrounded by a frame line, so that it has excellent transportability and can be easily damaged by the net hanging work and the coil spring connecting work. Since the prevention tool can be configured, the time required for attaching the bird damage prevention tool can be dramatically reduced. Further, in the constructed bird damage prevention device, the coil spring serves as a hinge portion, and the bird damage prevention device as a whole can be bent and bent. Therefore, the shape of the opening of various structures (for example, in the left-right direction) Even if the shape of the opening portion of the building having a curved line), it is possible to easily deform the shape of the bird damage prevention tool and attach it to the opening portion appropriately.

  Furthermore, since the bird damage prevention device is composed of a plurality of nets having portable dimensions, it has excellent transportability, and the net is also suspended from the opening of a structure at a high place. It is possible to easily execute the coil spring winding work.

  In addition, since the net of the bird damage prevention device is made of a wire net, the metal constituting the net of the net is not significantly deteriorated by the influence of the outside world (sunlight, ultraviolet rays, wind, etc.) compared to chemical fibers. Therefore, it is possible to dramatically extend the service life of the bird damage prevention tool as a whole and improve the durability. Therefore, once the bird damage prevention device is attached, it becomes possible to prevent the invasion of wild birds over a long period of time, and the maintenance of the bird damage prevention device after the attachment is unnecessary, further improving convenience. It becomes possible.

  Furthermore, since the net body of the bird damage prevention tool is composed of a wire mesh and has a gloss specific to metal, even if the bird damage prevention tool is attached to the opening, the wire rod of the net body is not conspicuous, and the bird damage prevention tool as a whole It cannot be easily seen from the outside, and the appearance of the building is not impaired.

  Furthermore, once the bird damage prevention device is attached, not only prevents the entry of birds from the outside world, but also the opening is closed by the net, so it is comparable to the opening on the veranda on the first floor of the apartment. Even if it is an opening provided in an environment where a suspicious person outside the world is likely to enter the inside from the opening, the bird harm prevention device functions as a crime prevention tool, and it is possible to suppress the suspicious person's invasion awareness at an early stage Is possible. In addition, when a bird damage prevention device is attached to the opening of a veranda at a high place in a condominium, the opening is blocked by a net, so laundry that has been dried on the veranda falls to the outside through the opening. It is also possible to prevent this.

  Furthermore, the bird damage prevention tool 1 can be configured to include a fastener 5 attached to the structure for fastening a frame line at an end of the connection net body 2.

  As a result, it becomes possible to appropriately fix the bird damage prevention device to the structure. For example, the vibration of the bird damage prevention device due to the influence of the outside (wind, rain, etc.) on the opening of a building such as an apartment, It is possible to reliably prevent rocking, detachment and the like. In addition, it is possible to prevent the generation of cutting noise due to the mutual contact between the nets, and to maintain a comfortable living space.

  Furthermore, according to the attachment method of the bird harm prevention tool 1 of the present invention, the hanging metal fitting attaching step for attaching the hanging metal fitting 4 to the structure and the frame line at the upper end of the net body 2 whose outer periphery is surrounded by the frame line are provided. In the state where the net body 2 is disposed adjacent to the suspended net body 2 and the suspension step suspended from the suspension metal fitting 4, the frame lines of the net body 2 are coil springs. Connecting step 3.

  As a result, the work of attaching the hanging metal fittings, the work of hanging the mesh body to the hanging metal fittings, the frame line of the suspended mesh body, and the frame line of the mesh body arranged adjacent to each other by the coil spring. Through a series of simple operations of connecting, it is possible to attach the bird protection tool to a structure (for example, an opening of the structure) while assembling.

  In addition, since the whole bird damage prevention device is configured to be divided for each net body, a plurality of hanging brackets, a plurality of net bodies, and a plurality of coil springs are held at the opening of a structure such as a veranda. Therefore, even if the opening has various sizes, it is possible to immediately and appropriately adjust the size of the bird damage prevention tool and attach it to the opening. For this reason, conventionally, when installing a bird net, it is necessary to create an illustration and cut the bird net according to the illustration. It takes more than 6 days and completes the installation on that day. I couldn't. In the bird damage prevention device mounting method according to the present invention, it is not necessary to create illustrations and cut the bird protection net, and the time required for mounting the bird damage prevention device is required for conventional attachment work. Compared to time, it can be dramatically reduced. Furthermore, the nets that make up the bird damage prevention tool have a predetermined shape retaining property, so the number of hanging fittings can be dramatically reduced compared to conventional bird damage prevention equipment made of mesh thread. Therefore, it is possible to further simplify the mounting operation and improve the efficiency of the mounting time.

  Furthermore, the attachment method includes a fastener attachment step of attaching the fastener 5 to the structure, and a step of fastening an end portion of the connecting mesh body 2 in which a plurality of the mesh bodies are connected by the coil spring 3 to the fastener 5. , Can be configured.

  Thereby, it becomes possible to attach a bird damage prevention tool firmly to a structure. Further, the net body constituting the bird harm prevention tool has a predetermined shape retaining property, and the fastener is only required to be attached at a position for fastening the end of the connecting net body, and thus is made of a conventional net thread. Compared with a bird damage prevention tool, it is possible to dramatically reduce the number of attachments of fasteners, and it is possible to further simplify the attachment work and increase the efficiency of the attachment time.

  In the embodiment of the present invention, in the plurality of mesh bodies, the frame lines at the ends of the mesh bodies adjacent to each other are all wound by the coil spring, but other configurations may be used.

  For example, in the bird harm prevention tool, only one frame line of the predetermined mesh body among the connection mesh bodies is coupled to the frame line of the first mesh body adjacent to the mesh body by the coil spring. And having a net that is hung on a metal fitting provided on a frame of a second net adjacent to the net, the other frame facing the one frame. can do. With this configuration, the predetermined mesh body is disposed so as to be openable and closable with respect to the plurality of attached mesh bodies, so that the mesh body serves as an emergency exit.

  FIG. 12 is a schematic view showing a state in which a predetermined net constituting the bird harm prevention tool 1 is arranged as an emergency exit. FIG. 12 (A) is a front view of the bird damage prevention device 1 having an emergency exit net body, and FIG. 12 (B) is a cross-sectional view of the right side surface of the line AA in FIG. 12 (A). FIG. 12 (C) is a schematic view of a latch that will be described later. In addition, the up-down direction of FIG. 12 respond | corresponds to the up-down direction of a bird damage prevention tool, and the left-right direction of FIG. 12 corresponds to the left-right direction of a bird damage prevention tool.

  As shown in FIG. 12A, only the lower frame line 1002 is adjacent to the lower part of the emergency exit network 1001 among the frame lines of a predetermined network 1001 (hereinafter referred to as emergency exit network) corresponding to the emergency exit. Wrapped around the frame 1004 and the coil spring 3 above the mesh body 1003 arranged in the above manner. The winding mode of the coil spring 3 is a mode (first mode) in which two mesh bodies are wound by one coil spring as shown in FIG. Therefore, as shown in FIG. 12 (B), the emergency exit network 1001 is disposed so as to be openable and closable in the left-right direction using the coil spring 3 wound around the lower frame line 1002 as a hinge portion.

  Further, among the frame lines of the emergency exit network body 1001, the upper frame line 1005 is a latch metal fitting 1008 attached to the lower frame line 1007 of the network body 1006 disposed adjacent to the upper side of the emergency exit network body 1001. It can be hung.

  As shown in FIG. 12C, the latch metal 1008 is formed by bending both ends of a predetermined wire, and a cutting portion corresponding to the inlet portion 1009 is formed near the center of the main body. The lower curved portion 1010 has a hook shape, and the frame line 1005 of the emergency exit mesh body 1001 can be easily inserted into the interior from the entrance portion 1009 so that the emergency exit mesh body 1001 can be easily latched to the latch metal 1008. Yes. When the emergency exit net 1001 is hooked on the latch metal 1008, the plurality of nets 2 cover the entire opening 6 of the veranda, and it is possible to prevent birds from entering. In FIG. 12C, the hook-shaped inlet portion 1009 faces the outside (right direction).

  In addition, if the inverted triangular display portion 1011 indicating the emergency exit is attached to the lower wall of the emergency exit fitting 1001, for example, the fire brigade can easily recognize the emergency exit network 1001 from the outside. preferable.

  With this configuration, even if a fire occurs inside, the hook metal fitting 1008 does not firmly fix the emergency exit network 1001. The emergency exit network 1001 is easily opened by pushing or pulling, and an emergency exit is formed. Thereby, the inhabitant inside can easily evacuate even if the bird damage prevention device is attached to the opening.

  The emergency exit creation method described above is as follows.

  The plurality of nets 2 are already fastened with the fasteners 5 so that the bird damage prevention device 1 is fixed to a structure (wall) near the end of the opening 6 of the veranda (step 6). In this state, as shown in FIG. 12 (A), a predetermined mesh body 1001 (emergency exit network body) corresponding to the emergency exit is selected from the attached continuous mesh bodies 2, and a lower part of the emergency exit network body 1001 is selected. Only the frame line 1002 is wound around the frame line 1004 and the coil spring 3 above the mesh body 1003 disposed adjacently below the emergency exit mesh body 1001 (step 7). Further, the coil spring 3 wound around the left-right frame line of the emergency exit mesh body 1001 is removed (step 8). Then, the coil spring 3 wound around the frame line 1007 below the mesh body 1006 arranged adjacent to the upper side of the emergency exit network body 1001 is removed, and the positions corresponding to the positions of both ends above the emergency exit network body 1001 are removed. Two latches 1008 are attached to the position of the frame line 1007 below the mesh body 1006 (step 9). Here, the latch metal 1008 is attached so that the inlet portion 1009 of the hook portion of the latch metal 1008 is opened to the outside. Then, the frame line 1005 above the emergency exit mesh body 1001 is hooked to the attached latch metal 1008 (step 10). As a result, the emergency exit network 1001 is created as an emergency exit.

  Note that when a conventional bird net is attached to the opening, an emergency exit through which a human can pass is formed by an operation of removing a fixing bracket of the bird net or a work of cutting the bird net. Since the number of fixing brackets of the birdproof net is larger than that of the bird damage prevention device of the present invention, it takes time to remove the fixing bracket. Further, when cutting the bird net, it takes time to cut because the mesh of the bird net is fine and the net yarn is made of chemical fiber. Therefore, in the conventional bird net, it takes time to form an emergency exit and cannot cope with an emergency situation.

  On the other hand, with the bird damage prevention device of the present invention, it is possible to easily create an emergency exit.

  In FIG. 12, the emergency exit net is configured on the assumption that the bird harm prevention tool is configured by a net having all the same dimensions, but other configurations may be used. For example, the emergency exit mesh body of the bird harm prevention device of the present invention is a mesh body having a size that can easily pass through the human body, and is arranged above and below the emergency exit network body according to the dimensions of the emergency exit network body. You may comprise so that the dimension of the up-down direction of a net body and the dimension of the left-right direction may be adjusted. With this configuration, in an emergency situation, it becomes possible for the inhabitants of the inside to evacuate to the outside more quickly, and this is a highly safe bird damage prevention device.

  In this way, the bird harm prevention device of the present invention further includes only one frame line of the predetermined net body among the connection net bodies, and the frame line of the first net body adjacent to the net body and the above-described net body. The other frame line of the mesh body that is connected by the coil spring and faces the one frame line is latched to the latch metal provided on the frame line of the second mesh body adjacent to the mesh body. It can comprise so that it may be provided with the screened net | network.

  As a result, even if the bird damage prevention tool is attached to the entire opening of the veranda or the like, the predetermined mesh body is disposed so as to be openable and closable with respect to the plurality of attached mesh bodies when the latch metal is removed. Therefore, it is possible to use the mesh body as an emergency exit. Therefore, even if a fire breaks out, the emergency exit makes it possible for residents to evacuate to the outside instantly, and it is possible for outside firefighters to easily enter the interior, and to facilitate smooth rescue activities. Can do. Moreover, it becomes possible to attach a bird harm prevention tool to an opening part without violating rules, such as the Fire Service Act. In the case of a conventional bird damage prevention device made of string, mesh thread, etc., when a fire or the like occurs, the bird damage prevention device is cut from inside or outside to create an emergency exit, and the user evacuates, and the evacuation time is Although the time has been extended, this configuration makes it possible for the user to easily move from the emergency exit to the inside or outside, so that the evacuation time can be shortened.

  In addition, the method for attaching the bird harm prevention apparatus of the present invention is such that only one frame line of a predetermined net body is connected to the frame line of the first net body adjacent to the net body, and the connection line. Connected by a metal fitting, and the other frame line of the net body facing the one frame line is hung on a hook metal fitting provided on a frame line of a second net body adjacent to the net body, It can comprise so that it may have the emergency exit creation step which creates the said mesh body as an emergency exit.

  As a result, it is possible to create an emergency exit without increasing the number of new parts, and the creation method is very simple. Furthermore, since the emergency exit is created in units of network bodies, any network body selected by the user among the connected network bodies can be installed as an emergency exit. Therefore, the emergency exit can be created at an appropriate position according to the shape of the structure, the shape of the opening of the outer wall of the building, and the configuration of the building, and the flexibility of the bird damage prevention tool is further improved.

  In the embodiment of the present invention, the coil spring is adopted even when the mesh bodies adjacent in the left-right direction are connected to each other. However, other configurations may be adopted. For example, if the left and right wire rods of a net that is scheduled to be adjacent in the left-right direction are extended in advance by a predetermined length in advance, and the net members are connected adjacent to each other in the left-right direction, the same penetration as the diameter of the left and right wires You may employ | adopt the cylindrical insertion plug which has a hole and can be inserted in a right-and-left wire. If it is set as the said structure, when connecting a network body adjacent to the left-right direction, it will become possible to connect more simply and rapidly.

  In the embodiment of the present invention, the fastener is configured to fasten a frame member of a predetermined mesh body located at an end portion of the connection mesh body to a structure (wall) near the end portion of the opening. However, other configurations may be used. For example, in the bird harm prevention tool, the structure further includes a structure in which the coil spring extends near the end of the opening while extending the coil spring connecting the two nets located at the end to the clasp. You may comprise so that it may remain in a thing.

  With this configuration, the bird damage prevention device can be stretched over the opening, so that the bird damage prevention device can be firmly attached to the opening, and the bird is affected by the influence of the outside world (wind, rain, etc.). Even if the harm prevention tool vibrates and swings, it does not come off easily.

  Further, in the embodiment of the present invention, a net body composed of upper and lower wire rods and left and right wire rods is adopted. It is preferable that the number of the upper and lower wires constituting the net body is larger than the number of the left and right wires. When the number of the upper and lower wire rods is larger than the number of the left and right wire rods, the entire net body can be easily bent in the left-right direction, so that the shape of the net body can be deformed according to the shape of the opening. Normally, the shape of the opening is often curved so that it is curved in the left-right direction rather than in the up-down direction. It becomes possible to deform | transform into. A building having a curved shape in which the shape of the opening is curved in the left-right direction is, for example, a spherical dome, a cylindrical apartment, or the like.

  As described above, the bird damage prevention device according to the present invention is useful not only for the opening of a veranda such as a condominium, but also for the opening of a passage, the opening of a station or a temple, and so on. In addition to preventing intrusion, it has excellent durability without impairing the appearance, and the construction time is also effective as a bird damage prevention tool that can be done in a very short time compared to the conventional construction time It is.

DESCRIPTION OF SYMBOLS 1 Bird damage prevention device 2 Net body 3 Coil spring 4 Hanging metal fitting 5 Fastening metal 6 Opening of a veranda

Claims (5)

A mesh body whose outer periphery is surrounded by a frame line, a connection fitting for connecting the frame lines of the mesh bodies arranged adjacent to each other, and an upper end portion of a connection network body in which a plurality of the mesh bodies are connected by the connection fitting the suspended at the position of a predetermined height of the structure, a bird damage prevention member and a hanging metal fitting attached to said structure,
The predetermined network constituting the connection network, wherein only one frame line of the network is connected to the frame of the first network adjacent to the network by the connection fitting, A net body in which the other frame line of the net body opposed to the one frame line is hung on a clasp provided on a frame line of a second net body adjacent to the net body
Bird damage prevention member, characterized in that it comprises a.   The bird harm prevention tool according to claim 1, wherein the connection fitting is a coil spring.   Furthermore, the bird harm prevention tool of Claim 1 or 2 provided with the fastener attached to the said structure which fastens the frame line of the edge part of the said connection net | network body. A hanging bracket mounting step for mounting the hanging bracket on the structure;
A suspension step of suspending the frame line of the upper end of the net body surrounded by a frame line on the suspension fitting;
Against the suspended mesh member, in a state of being disposed adjacent the mesh member, and consolidated forming a connecting network body concatenates borders mutual of the network element in the connecting fitting,
Only one frame line of the predetermined mesh body constituting the connection network body is connected to the frame line of the first network body adjacent to the network body by the connection metal fitting and is opposed to the one frame line. An emergency exit creating step of creating the network body as an emergency exit by hooking the other frame line of the mesh body to a latch provided on the frame line of the second mesh body adjacent to the network body. How to install bird protection equipment. Further, a fastener attaching step for attaching a fastener to the structure,
A step of fastening an end portion of a connection mesh body in which a plurality of the mesh bodies are connected by the connection metal fitting to the fastener; and
The attachment method of the bird harm prevention tool of Claim 4 which has these.

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