Animal intrusion prevention fence

Abstract

To provide an animal invasion prevention fence capable of preventing surely invasion of a monkey.SOLUTION: An animal invasion prevention fence 1 includes multiple fence parts 2, and a corner part 3 for connecting two fence parts 2 forming an angle in a plane view. The corner part 3 has a projection 8 projecting furthermore upward than the fence parts 2, and a height H1 of the corner part 3 is higher than a height H2 of the fence parts 2. The projection 8 of the corner part 3 has a first tabular part 9 along one fence part 2 connected by the corner part 3, and a second tabular part 10 along the other fence part 2 connected by the corner part 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an animal prevention fence. [Background technology]

[0002] In electrical facilities such as power plants and substations, animals may come into contact with high-voltage charging parts, causing power supply disruptions. In addition, in farms and orchards, animals may cause damage such as eating crops.

[0003] For this reason, it is common for these outdoor facilities to have animal-proof fences installed around the perimeter to prevent animals from entering. Monkeys, in particular, are at a higher risk of climbing over the fences and entering compared to other animals such as deer and wild boars. Therefore, in areas where monkeys live around outdoor facilities, it is important to install animal-proof fences that take monkeys into consideration.

[0004] As an example of an animal prevention fence designed with monkeys in mind, Patent Document 1 discloses a fence in which the mesh size of the mesh part included in the fence is made very small to prevent the monkeys' fingers from getting inside, and the upper edge of the fence is provided with many spikes that stimulate the monkeys' fingers with pain. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 8-294348 [Non-patent literature]

[0006] [Non-Patent Document 1] Colored illustrated guide to Japanese mammals "Hoikusha" 1981 edition, p. 103 Primates, 51 Japanese macaque Summary of the Invention [Problem to be solved by the invention]

[0007] However, even if the animal intrusion prevention fence disclosed in Patent Document 1 is installed in an outdoor facility, there is still the problem of monkeys climbing over the animal intrusion prevention fence and invading, and it is an insufficient measure to prevent monkey intrusion.

[0008] An object of the present invention is to provide an animal intrusion prevention fence that can reliably prevent the intrusion of monkeys. [Means for solving the problem]

[0009] (1) The present invention, which was invented to solve the above problems, is an animal-proof fence comprising a plurality of fence sections and a corner section connecting two fence sections that form an angle in a plan view, wherein the corner section has a protrusion that protrudes above the fence sections, the height of the corner section is greater than the height of the fence sections, and the protrusion of the corner section comprises a first plate-shaped section that runs along one of the fence sections connected by the corner section, and a second plate-shaped section that runs along the other fence section connected by the corner section.

[0010] As a result of extensive research, the inventors discovered that there is a high risk of monkeys invading animal intrusion prevention fences through corners connecting two fence sections that form an angle in plan view. Specifically, monkeys attempt to climb the corner by squeezing the two outer surfaces (e.g., two perpendicular outer surfaces) of the angled corner with their hands and feet from both sides. Therefore, in the present invention, as in the above-described configuration, the corners are provided with protrusions that protrude upward from the fence sections, making the height of the corners higher than the height of the fence sections. This makes it more difficult for monkeys to attempt to climb using the corners. Furthermore, even if monkeys do attempt to climb using the corners, the height of the corners is high and the protrusions on the corners have plate-like sections, which make the surface smoother and more slippery than mesh sections, etc. Therefore, monkeys can be reliably prevented from invading through the corners.

[0011] (2) In the above configuration (1), it is preferable that at least one of the first plate-shaped portion and the second plate-shaped portion has a height-changing portion whose height decreases with increasing distance from the corner.

[0012] Because the range of motion of a monkey's arms is limited, the highest point that a monkey can reach after climbing partway up a corner inevitably becomes lower the further it gets from the corner. Therefore, even if at least one of the first and second plate-like portions is provided with a height-changing portion that decreases in height the further it gets from the corner, as in the above configuration, the monkey's hand will not be able to reach the upper edge of the height-changing portion. Furthermore, providing such a height-changing portion allows the area of ​​the plate-like portion to be reduced, which not only reduces material costs but also has the advantage of making it less susceptible to wind pressure.

[0013] (3) In the configuration of (2) above, it is preferable that the first plate-shaped portion and the second plate-shaped portion having a height-changing portion have a height-unchanging portion, the height of which does not substantially change, located closer to the corner of the corner than the height-changing portion.

[0014] In this way, even if the monkey jumps from a position biased to one side of the two outer surfaces that form the angle of the corner, the monkey's hands will not be able to reach the upper edge of the plate-like part because of the presence of the height-invariant part.

[0015] (4) In any of the above configurations (1) to (3), high points may be formed at opposing positions on the outside of the fence portion and / or the corner portion.

[0016] There may be high places such as slopes on the opposite sides of the fence or corners. In such cases, monkeys may try to use the height of the high places to jump onto the fence or corners, but even in such cases, applying the animal intrusion prevention fence of the present invention can effectively prevent monkeys from invading.

[0017] (5) In any of the configurations (1) to (4) above, the fence portion and the corner portion comprise a base portion provided on the ground and a mesh portion provided on the base portion, and a step is provided between the base portion and the mesh portion such that the outer surface of the mesh portion is located more inward than the outer surface of the base portion, and a cover member is provided between the outer surface of the base portion and the outer surface of the mesh portion to cover the step, and the cover member may comprise an inclined plate that slopes inward from the outer surface side of the base portion toward the outer surface side of the mesh portion.

[0018] In this way, the mesh part is firmly supported by the base part, improving the durability of the fence part and corners. Also, by providing a cover member, it is possible to prevent monkeys from using the steps to climb the fence part or corners. Furthermore, even if a monkey tries to climb the fence part using the cover member, the inclined plate of the cover member makes it easier for the monkey's hands and feet to slip. Therefore, it is possible to more reliably prevent monkeys from climbing. [Effects of the Invention]

[0019] According to the present invention, an animal intrusion prevention fence can be provided that can reliably prevent the intrusion of monkeys. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a perspective view showing an animal intrusion prevention fence according to a first embodiment. [Figure 2] FIG. 2 is a front view showing a first plate-shaped portion and its surrounding area. [Figure 3] FIG. 10 is a perspective view showing an animal intrusion prevention fence according to a second embodiment. [Figure 4] FIG. 2 is a vertical cross-sectional view showing a cover member and its surrounding area. [Figure 5] This is a conceptual diagram showing the fence portion and its surrounding area of ​​the animal intrusion prevention fence according to the third embodiment, showing a case where monkeys can run in at a high altitude. [Figure 6] This is a conceptual diagram showing the fence section and its surrounding area of ​​the animal intrusion prevention fence according to the third embodiment, showing a case where monkeys cannot run in due to the high altitude. [Figure 7] This is a graph showing the height of the fence that the monkey can reach when it is able to run at a high place (height (z-y) based on the height of the high place). [Figure 8] This is a graph showing the height of the fence that the monkey can reach when it is unable to run into the high place (height (z-y) based on the height of the high place). [Figure 9] FIG. 10 is a perspective view showing an outdoor facility according to a fourth embodiment. [Figure 10] A front view showing an anti-climbing member installed in a gutter of a building. [Figure 11]11 is a cross-sectional view taken along the line AA in FIG. 10. [Figure 12] FIG. 1 is a front view showing an anti-climbing member provided on a building structure. [Figure 13] 13 is a cross-sectional view of FIG. 12 taken along line B-B. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that corresponding components in each embodiment are designated by the same reference numerals, and redundant description may be omitted. When only a portion of a configuration is described in each embodiment, the configuration of another previously described embodiment may be applied to the remaining portions of the configuration. Furthermore, in addition to the combinations of configurations explicitly stated in the description of each embodiment, configurations of multiple embodiments may be partially combined together even if not explicitly stated, provided that there is no particular problem with the combination.

[0022] (First embodiment) FIG. 1 shows an animal intrusion prevention fence 1 according to a first embodiment. The animal intrusion prevention fence 1 is designed to prevent the intrusion of monkeys, but it can also prevent the intrusion of other animals, such as deer and wild boars. Monkeys are classified into large, medium, and small monkeys. Medium-sized monkeys, which are light and strong, are at the highest risk of climbing over the animal intrusion prevention fence 1. Therefore, in this embodiment, the height and other specifications of the animal intrusion prevention fence 1 are specified with medium-sized monkeys in mind. The height and other specifications of the animal intrusion prevention fence 1 were determined based on literature research, interviews with scholars, and on-site inspections to analyze monkey behavior. The average physique of a medium-sized monkey is a front leg length of 450 mm, a shoulder width of 400 mm, and a raised hand height of 1300 mm when standing upright (Non-Patent Document 1). The maximum vertical jumping ability of a medium-sized monkey is approximately 2300 mm.

[0023] The animal intrusion prevention fence 1 comprises multiple fence sections 2 and a corner section 3 connecting two fence sections 2 that form an angle in plan view (when viewed from above). Typically, the animal intrusion prevention fence 1 has a rectangular frame shape in plan view, and comprises four fence sections 2 corresponding to the four sides of the rectangular frame, and four corner sections 3 connecting each fence section 2. Figure 1 shows an enlarged view of one corner 3 and its surrounding area.

[0024] The fence portion 2 and the corner portion 3 are provided with a mesh portion 4.

[0025] The mesh section 4 comprises a plurality of posts 5 erected at intervals on the ground G, a frame 6 supported by the posts 5, and a mesh (e.g., a fence) 7 stretched around the outside of the frame 6. The frame 6 has a plurality of crosspieces 6a extending vertically or horizontally to improve the support strength of the mesh 7. The posts 5, frame 6, and mesh 7 are made of, for example, metal such as aluminum or stainless steel, or resin.

[0026] The mesh shape of the netting material 7 is preferably a square, but may be any regular polygonal shape. The size of the mesh (opening) of the netting material 7 is set to a size that does not allow the monkey's fingers or toes to enter. Specifically, the opening area of ​​the mesh of the netting material 7 is, for example, 25 mm 2 It is preferable that the mesh size is set to 5 mm or less (if the mesh shape is square, one side is 5 mm or less).

[0027] Each corner 3 has a protrusion 8 that protrudes higher than the two fence sections 2 connected by the corner 3. This protrusion 8 makes the height H1 of the corner 3 higher than the height H2 of the fence section 2. The fence section 2 is composed of a single flat surface and has no intermediate places for hand or footholds, making it difficult for monkeys to climb the fence section 2. On the other hand, the corner 3 is composed of two flat surfaces at an angle. Therefore, even if there is no intermediate place for hand or footholds, monkeys can try to climb by squeezing the two flat surfaces (outer surfaces) with their hands and feet from both sides and using this strength. Therefore, as described above, the height H1 of the corner 3 is made higher than the height H2 of the fence section 2. This makes it more difficult for monkeys to attempt to climb using the corner 3. Furthermore, even if a monkey were to attempt to climb using the corner 3, the high height H1 of the corner 3 makes it difficult for them to succeed. Therefore, monkey intrusion can be reliably prevented.

[0028] The height H2 of the fence section 2 is preferably 2500 to 2700 mm. This ensures that even if a monkey jumps from the ground G, it will be unable to reach the upper edge 2a of the fence section 2. On the other hand, the height H1 of the corner 3 is preferably 3000 to 3200 mm. In a verification experiment of the height H1 of the corner 3, no monkeys attempted to climb when the height H1 of the corner 3 was 3000 mm or greater. The difference (H1-H2) between the height H1 of the corner 3 and the height H2 of the fence section 2 is preferably 450 mm or greater, and more preferably 500 mm or greater. If there is a high place (higher than the bottom ends of the fence section 2 or corner 3), such as a slope, outside the animal intrusion prevention fence 1, monkeys may jump from the high place. Therefore, if there is a high place outside the animal intrusion prevention fence 1, the height H1 of the corner 3 and the height H2 of the fence section 2 are adjusted appropriately (details will be described later).

[0029] The protruding portion 8 of the corner portion 3 includes a first plate-shaped portion 9 that runs along one of the fence portions 2 connected by the corner portion 3, and a second plate-shaped portion 10 that runs along the other fence portion 2 connected by the corner portion 3. The first plate-shaped portion 9 and the second plate-shaped portion 10 are continuous at a corner 3a of the corner portion 3. The first plate-shaped portion 9 and the second plate-shaped portion 10 are formed, for example, by bending a single plate material having a thickness of 2 mm or less at a position corresponding to the corner 3a.

[0030] The outer surfaces of the first plate-shaped portion 9 and the second plate-shaped portion 10 are configured as smooth surfaces that the monkey's paws can easily slide on. The first plate-shaped portion 9 and the second plate-shaped portion 10 are preferably configured from metal plates such as anodized aluminum or stainless steel. In this way, the monkey's paws will slip, and the monkey will not be able to climb up by squeezing the outer surfaces of the first plate-shaped portion 9 and the second plate-shaped portion 10 with its paws from both sides.

[0031] Here, the first plate-shaped portion 9 and the second plate-shaped portion 10 have symmetrical shapes with respect to the corner 3a of the corner portion 3, and therefore, hereinafter, the shape of the first plate-shaped portion 9 will be described, and a detailed description of the shape of the second plate-shaped portion 10 will be omitted. Of course, the first plate-shaped portion 9 and the second plate-shaped portion 10 may have asymmetrical shapes (different shapes) with respect to each other.

[0032] As shown in Figure 2, the first plate-shaped portion 9 includes, from the corner 3a of the corner 3, a height-unchanging portion 11 whose height does not substantially change, and a height-changing portion 12 whose height gradually decreases with increasing distance from the corner 3a of the corner 3. The highest point that a monkey can reach after climbing partway up the corner 3 inevitably decreases with increasing distance from the corner 3a of the corner 3. Therefore, even if the height-changing portion 12 is provided, the monkey's paw will not be able to reach the upper edge 12a of the height-changing portion 12. Furthermore, by providing the height-changing portion 12 in this manner, the area of ​​the first plate-shaped portion 9 can be reduced, which not only reduces material costs but also makes the first plate-shaped portion 9 less susceptible to wind pressure.

[0033] The height H3 of the height-unchanging portion 11 is the same as or higher than the maximum height H4 of the height-changing portion 12. In this embodiment, the height H3 of the height-unchanging portion 11 matches the maximum height H4 of the height-changing portion 12, and the upper edge 11a of the height-unchanging portion 11 smoothly connects to the upper edge 12a of the height-changing portion 12.

[0034] The upper edge 12a of the height-changing portion 12 follows an arc-shaped path that gradually decreases in height with increasing distance from the corner 3a of the corner portion 3. In this embodiment, the center of curvature O of the arc-shaped path is located at or near the intersection of a perpendicular line drawn directly downward from the tangent point between the upper edge 11a of the height-unchanging portion 11 and the upper edge 12a of the height-changing portion 12 and a horizontal line along the upper edge 2a of the fence portion 2. The range of motion of the monkey's arm follows an arc-shaped path due to a wiper motion centered on the shoulder joint. Therefore, by making the upper edge 12a of the height-changing portion 12 follow an arc-shaped path, the area of ​​the first plate-shaped portion 9 can be minimized.

[0035] The width W1 of the first plate-shaped portion 9 is preferably 850 to 950 mm. The width W2 of the height-unchangeable portion 11 is preferably 400 to 450 mm. The radius of curvature R of the arc-shaped path along which the upper edge 12a of the height-changing portion 12 follows is preferably 450 to 500 mm. In this way, the first plate-shaped portion 9 will be large enough and efficient, taking into account the range of motion of the monkey's arms and shoulder width.

[0036] The upper edge 12a of the height transition portion 12 is not limited to an ideal arc. As long as the upper edge 12a of the height transition portion 12 follows an arc-shaped path, it may be a group of straight lines formed by connecting multiple straight lines at different angles, a group of curved lines formed by connecting multiple curved lines with different curvatures, or a combination of straight lines and curved lines. In this embodiment, the width W3 of the height transition portion 12 is equal to the radius of curvature R of the arc-shaped path. Note that the upper edge 12a of the height transition portion 12 is not limited to a path that follows an arc-shaped path, and may be an inclined straight line whose height gradually decreases with increasing distance from the corner 3a of the corner 3, as long as the upper edge 12a exceeds the radius R.

[0037] The first plate-shaped portion 9 is fixed by pressing it against the animal intrusion prevention fence 1 (corner 3) with fastening members 13 such as screws or bolts. In this case, the height of the protrusions formed by the fastening members 13 on the outer surface of the first plate-shaped portion 9 is preferably 2 mm or less so that the monkey's hands or feet will not get caught in them.

[0038] Similarly, the second plate-shaped portion 10 also has, in order from the corner 3a side of the corner portion 3, a height-unchanging portion 14 whose height does not substantially change, and a height-changing portion 15 whose height gradually decreases with increasing distance from the corner 3a of the corner portion 3 (see Figure 1).

[0039] The height varying portion 12 of the first plate-shaped portion 9 and / or the height varying portion 15 of the second plate-shaped portion 10 may be omitted. Similarly, the height constant portion 11 of the first plate-shaped portion 9 and / or the height constant portion 14 of the second plate-shaped portion 10 may be omitted.

[0040] In addition to the above configuration, it is preferable that the outer surface of the animal intrusion prevention fence 1 is constructed so that there are no gaps, steps, or protrusions of more than 2 mm. This is because gaps, steps, or protrusions of more than 2 mm would allow monkeys to insert or hook their fingers or toes. If there are gaps, steps, or protrusions of more than 2 mm, it is preferable that they be covered with a cover material (for example, a metal plate or a resin plate) (details will be described later). In this case, it is preferable that the thickness of the cover material be 2 mm or less.

[0041] Second Embodiment As shown in Figure 3, in the animal intrusion prevention fence 21 according to the second embodiment, the fence section 2 and corner section 3 comprise a base section 22 provided on the ground G and a mesh section 4 provided on the base section 22. Note that, similar to the first embodiment, the corner section 3 has a protrusion 8 that protrudes above the fence section 2, and the height H1 of the corner section 3 is higher than the height H2 of the fence section 2.

[0042] The foundation 22 includes concrete blocks stacked up to a predetermined height from the ground G.

[0043] The mesh part 4 comprises a plurality of pillars 5 erected at intervals on the base part 22, a frame body 6 having a plurality of crosspieces 6a extending vertically or horizontally and supported by the pillars 5, and a mesh material 7 stretched on the outside of the frame body 6.

[0044] A step 23 is formed between the base 22 and the mesh part 4 (mesh material 7), where the outer surface of the mesh part 4 is located more inward (inside the premises) than the outer surface of the base 22. If the step 23 is 2 mm or larger, monkeys will try to climb up by putting their hands or feet on the step 23. Therefore, a cover member 24 is provided that straddles the outer surface of the base 22 and the outer surface of the mesh part 4 from above and below to cover the step 23 from the outside.

[0045] 4, the cover member 24 includes, in order from the bottom, a first flat plate 24a that fits along the outer surface of the base portion 22, an inclined plate 24b that slopes inward from the outer surface of the base portion 22 toward the outer surface of the mesh portion 4, and a second flat plate 24c that fits along the outer surface of the mesh portion 4. The cover member 24 is formed, for example, by bending a single plate material having a thickness of 2 mm or less.

[0046] The inclination angle θ1 of the inclined plate 24b with respect to the vertical direction is preferably 10° or less. Of the outer surfaces of the cover member 24, at least the outer surface of the inclined plate 24b is configured as a smooth surface. The cover member 24 is preferably configured from a metal plate such as anodized aluminum or stainless steel. This makes it easier for the monkey's hands and feet to slip on the cover member 24, more reliably preventing the monkey from climbing.

[0047] The cover member 24 is fixed by pressing the first flat plate 24a and the second flat plate 24c against the animal intrusion prevention fence 21 (fence section 2 or corner section 3) with fastening members 25 such as screws or bolts. In this embodiment, the upper end of the cover member 24 is fixed by clamping the mesh section 4 between the second flat plate 24c and the backing plate 26 from both sides and tightening the two plates 24, 26 with the fastening members 25. The height of the protrusions formed by the fastening members 25 on the outer surface of the cover member 24 is preferably 2 mm or less so that a monkey's hands or feet will not get caught in them.

[0048] (Third embodiment) As shown in FIGS. 5 and 6, an animal intrusion prevention fence 31 according to the third embodiment has high points S1 and S2 formed on the outside of a fence section 2 at positions facing the fence section 2.

[0049] Examples of the high places S1 and S2 include, for example, slopes. When such high places S1 and S2 are formed near the animal intrusion prevention fence 31, the monkey M may jump from the high places S1 and S2 to the side of the animal intrusion prevention fence 31. Therefore, when there are high places S1 and S2, it is necessary to set the heights of the fence part 2 and the corner part 3 in consideration of the heights of the high places S1 and S2 and the horizontal distance from the high places S1 and S2 to the fence part 2. In addition, since the jumping distance of the monkey M varies depending on whether it can run into the high place S1 (Fig. 5) or not into the high place S2 (Fig. 6), it is also necessary to consider whether it can run into the high places S1 and S2 when setting the heights of the fence part 2 and the corner part 3.

[0050] Specifically, as shown in Fig. 5, a high place S1 where the monkey M can run into is formed at a position facing the fence part 2 outside the fence part 2. When the horizontal distance from the high place S1 to the fence part 2 is x (m), the height of the high place S1 is y (m), and the height of the fence part 2 is z (m), the height z of the fence part 2 is defined as follows. Note that the height y of the high place S1 and the height z of the fence part 2 are based on the lower end (ground G) of the fence part 2. The high place S1 where running in is possible means, for example, a high place where the助走可能距離RD (run-up possible distance) is 0.3 m or more at the top or the like.

[0051] (a) When x ≤ 1.5 m, z is preferably y + 2.5 m or more. (b) When 1.5 m < x ≤ 2.0 m, z is preferably y - 0.67x + 3.5 m or more. (c) When 2.0 m < x ≤ 2.7 m, z is preferably y - 0.73x + 3.6 m or more. (d) When 2.7 m < x ≤ 3.2 m, z is preferably y - x + 4.3 m or more. (e) When 3.2 m < x, z is preferably y - 1.29x + 5.29 m or more.

[0052] It should be noted that there is an unclear expression "助走可能距離RD" in the original text which is directly translated as it is. You may need to check and clarify this part according to the actual situation.The above (a) to (e) are derived from the results of FIG. 7. FIG. 7 shows the simulation results of varying the horizontal distance x and the height z - y (the difference in height between the fence part 2 and the high place S1), to determine whether the hand of the monkey M jumping from the high place S1 reaches the upper edge of the fence part 2. The initial velocity at the time of jumping is set to 5.42 m / s.

[0053] As shown in FIG. 6, a high place S2 where the monkey M cannot run in is formed at a position facing the fence part 2 outside the fence part 2. When the horizontal distance from the high place S2 to the fence part 2 is x (m), the height of the high place S2 is y (m), and the height of the fence part 2 is z (m), the height z of the fence part 2 is defined as follows. Here, the high place S2 where running in is not possible means, for example, a high place where the available running distance RD is less than 0.3 m at the top or the like.

[0054] (f) When x ≤ 0.7 m, z is preferably y + 2.3 m or more. (g) When 0.7 m < x ≤ 1.5 m, z is preferably y - 0.54x + 2.8 m or more. (h) When 1.5 m < x ≤ 2.3 m, z is preferably y - 0.86x + 3.2 m or more. (i) When 2.3 m < x, z is preferably y - 1.35x + 4.4 m or more.

[0055] The above (f) to (i) are derived from the results of FIG. 8. FIG. 8 shows the simulation results of varying the horizontal distance x and the height z - y (the difference in height between the fence part 2 and the high place S2), to determine whether the hand of the monkey M jumping from the high place S2 reaches the upper edge of the fence part 2. The initial velocity at the time of jumping is set to 4.65 m / s.

[0056] When the height z of the existing fence part 2 does not satisfy the above (a) to (e) or (f) to (i), for example, it is preferable to fix a plate - like raising member protruding above the upper edge 2a of the fence part 2 to the fence part 2 so as to satisfy the above (a) to (e) or (f) to (i).

[0057] Even when the height z of the fence portion 2 satisfies the above (a) to (e) or (f) to (i), the height of the corner portion 3 is made higher than the height of the fence portion 2.

[0058] (Fourth embodiment) As shown in FIG. 9, an outdoor facility 41 is exemplified in the fourth embodiment.

[0059] The outdoor facility 41 includes an electrical facility 42. Although not shown, the outdoor facility 41 includes an animal-proof fence surrounding the electrical facility 42.

[0060] The electrical equipment 42 includes a high-voltage charging section (not shown). The electrical equipment 42 is disposed on the roof of a building 44.

[0061] In many cases, pillar-shaped members extending vertically from the ground to the roof are provided on the exterior walls of the building 44. Examples of pillar-shaped members include gutters (drainage pipes) 45 and structures (such as pillars and beams) 46 of the building 44.

[0062] In such an outdoor facility 41, monkeys that invade the premises could use pillar-shaped components such as gutters 45 and structures 46 to climb to the roof of building 44 and come into contact with the high-voltage charging parts of electrical equipment 42, potentially causing a power supply disruption.

[0063] Therefore, in this embodiment, in order to reliably prevent monkeys from invading the roof of the building 44, climbing prevention members 47, 48 are provided in the middle of the gutter 45 and the structure 46.

[0064] 10, when the columnar member is a gutter 45, the anti-climbing member 47 is composed of a cover member that covers the gutter 45 from the outside, spanning the width between the gutter 45 and the exterior wall of the building 44. The anti-climbing member 47 is formed, for example, by bending a single plate material having a thickness of 2 mm or less.

[0065] Gutter 45 includes a cylindrical gutter body 45a extending in the vertical direction at a position away from the exterior wall of building 44, and support fittings 45b provided at intervals in the vertical direction of gutter body 45a and fixing gutter body 45a to the exterior wall of building 44. In other words, a gap is formed between gutter body 45a and the exterior wall of building 44.

[0066] The climbing prevention member 47 comprises, on one widthwise side of the gutter main body 45a, a first inclined plate 47a that is inclined so as to gradually approach the outer wall of the building 44 from the gutter main body 45a, and a first flat plate 47b that follows the outer wall of the building 44. The climbing prevention member 47 also comprises, on the other widthwise side of the gutter main body 45a, a second inclined plate 47c that is inclined so as to gradually approach the outer wall of the building 44 from the gutter main body 45a, and a second flat plate 47d that follows the outer wall of the building 44. In the portion where the climbing prevention member 47 is arranged, the gutter main body 45a is surrounded by the first inclined plate 47a, the second inclined plate 47c, and the outer wall of the building 44, preventing monkeys from grabbing the gutter main body 45a.

[0067] Of the outer surfaces of anti-climbing member 47, at least the outer surfaces of first inclined plate 47a and second inclined plate 47c are configured as smooth surfaces that monkeys' paws can easily slip on. Anti-climbing member 47 is preferably configured from a metal plate such as anodized aluminum or stainless steel.

[0068] The height H5 of the lower end of climbing prevention member 47 from the ground is preferably 1.7 m or more. The vertical dimension L1 of climbing prevention member 47 is preferably 1.5 m or more. As shown in FIG. 11, the angle θ2 formed between first inclined plate 47a and second inclined plate 47c is preferably 90° or more. This reliably prevents monkeys from climbing above climbing prevention member 47.

[0069] The climbing prevention member 47 is fixed by pressing the first flat plate 47b and the second flat plate 47d against the building 44 with fastening members 49 such as screws or bolts. The height of the protrusions formed by the fastening members 49 on the outer surface of the climbing prevention member 47 is preferably 2 mm or less so that monkeys cannot get their hands or feet caught in them.

[0070] 12, when the columnar member is a structure 46 of a building 44, the anti-climbing member 48 is composed of a cover member that spans the width direction between the outer surface of the structure 46 and the outer wall of the building 44 and covers the structure 46. The anti-climbing member 48 is formed, for example, by bending a single plate material having a thickness of 2 mm or less.

[0071] The structure 46 of the building 44 is a rectangular pillar-shaped member that protrudes outward from the outer wall of the building 44, and there is no gap between the structure 46 and the outer wall of the building 44. In this embodiment, the structure 46 is provided at a corner of the building 44, and a step 46a is formed between the structure 46 and the outer wall of the building 44 on only one side in the width direction of the structure 46.

[0072] The anti-climbing member 48 comprises a first flat plate 48a that follows the outer surface of the structure 46, an inclined plate 48b that extends from the outer surface of the structure 46 to one side in the width direction of the structure 46 and is inclined so as to gradually approach the outer wall of the building 44, and a second flat plate 48c that follows the outer wall of the building 44. In the portion where the anti-climbing member 48 is arranged, the step 46a between the outer surface of the structure 46 and the outer wall of the building 44 is covered from the outside by the inclined plate 48b, preventing monkeys from grabbing the structure 46.

[0073] Of the outer surfaces of the climbing prevention member 48, at least the outer surfaces of the first flat plate 48a and the inclined plate 48b are configured as smooth surfaces that monkeys can easily slip on. The climbing prevention member 48 is preferably configured from a metal plate such as anodized aluminum or stainless steel.

[0074] The height H6 of the lower end of the climbing prevention member 48 from the ground is preferably 1.7 m or more. The vertical dimension L2 of the climbing prevention member 48 is preferably 1.5 m or more. As shown in FIG. 13, the angle θ3 formed between the second flat plate 48c and the inclined plate 48b is preferably 15° or less. The value (W4 + W5) obtained by adding the width W4 of the first flat plate 48a and the slope length W5 of the inclined plate 48b is preferably 1.7 m or more. This reliably prevents monkeys from climbing higher than the climbing prevention member 48.

[0075] The anti-climbing member 48 is fixed by pressing the first flat plate 48a and the second flat plate 48c against the building 44 or structure 46 with fastening members 50 such as screws or bolts. The height of the protrusions formed by the fastening members 50 on the outer surface of the anti-climbing member 48 is preferably 2 mm or less so that monkeys cannot get their hands or feet caught in them.

[0076] The present invention is not limited to the configuration of the above-described embodiment, nor is it limited to the above-described effects. The present invention can be modified in various ways without departing from the spirit of the present invention.

[0077] In the above embodiment, the drawings show an example in which the height of the lower end of the plate-like portion that constitutes the protruding part of the corner is roughly the same as the height of the upper edge of the fence part, but the lower end of the plate-like portion that constitutes the protruding part of the corner may be located lower than the upper end of the fence part (for example, lower than half the height of the fence part). In other words, at least a part of the outer surface of the mesh part (mesh material) of the corner may be covered by the plate-like portion that constitutes the protruding part of the corner. In this way, the limbs of a monkey that tries to climb using the corner will slip from a low position on the corner (lower than the upper edge of the fence part), making it more difficult for the monkey to successfully climb using the corner.

[0078] In the above embodiment, the upper edge of the fence and / or the upper edge of the corner (the plate-like portion of the protrusion) may be provided with a number of spikes protruding upward to provide a pain stimulus to the monkey's fingers.

[0079] In the above embodiment, the fence portion and the corner portion are provided with a mesh portion having a frame body and a mesh material stretched over the frame body, but this is not limited to this. Instead of the mesh portion, a smooth-surfaced plate-like material such as a metal plate or a synthetic resin plate stretched over the frame body may be used. Alternatively, instead of the mesh portion, a concrete wall erected on the foundation or ground may be used. However, from the viewpoints of reducing material costs, deterioration of the synthetic resin plate, and the effects of wind pressure, it is preferable to use a mesh portion.

[0080] In the above embodiment, if a gate (including gateposts) for people to pass through the animal intrusion prevention fence is installed in the fence section, the height of the gate shall also be subject to the numerical regulations for the height of the fence section described above. Similarly, if part of the gate is installed in a corner, the height of the gate shall also be subject to the numerical regulations for the height of the corner described above.

[0081] In the above embodiment, the climbing prevention members provided on the pillar-like members of the building are not particularly limited, and may be thorn-like members that stimulate the monkey's fingers with a pain sensation.

[0082] In the above embodiment, outdoor facilities equipped with electrical equipment such as power plants and substations are exemplified, but the animal intrusion prevention fence of the present invention can also be applied to other outdoor facilities. [Explanation of symbols]

[0083] 1 Animal intrusion prevention fence 2 Fence section 3 Corner 4 Reticulum 5 pillars 6 Frame 7. Netting 8 Protrusion 9 First plate-shaped part 10 Second plate-shaped portion 11 Height invariant part 12 Height change section 14 Height invariant part 15 Height change section 21 Animal intrusion prevention fence 22 Foundation 23 Steps 24 Cover member 24a First plane plate 24b Inclined plate 24c Second plane plate 31 Animal intrusion prevention fence 41 Outdoor Facilities 42 Electrical Equipment 43 Animal intrusion prevention fence 44 Buildings 45 Gutter (columnar member) 46 Structures (Columnar Members) 47 Anti-climbing elements 47a First inclined plate 47b First plane plate 47c Second inclined plate 47d Second plane plate 48 Climbing prevention materials 48a First plane plate 48b inclined plate 48c Second flat plate G Ground S1 High School S2 High School

Claims

1. An animal intrusion prevention fence comprising a plurality of fence sections and a corner section connecting two of the fence sections that form an angle in a plan view, The corners have protrusions that protrude upward from the fence portion, and are locally higher than other parts of the animal intrusion prevention fence, The protruding portion of the corner portion includes a first plate-shaped portion along one of the fence portions connected by the corner portion and a second plate-shaped portion along the other of the fence portions connected by the corner portion, An animal intrusion prevention fence characterized in that the maximum height at the corners is 3 m or more.

2. 2. The animal-proof fence according to claim 1, wherein at least one of the first plate-shaped portion and the second plate-shaped portion has a height-changing portion whose height decreases with increasing distance from the corner of the corner portion.

3. An animal-proof fence as described in claim 2, wherein the first plate-shaped portion and the second plate-shaped portion having the height-changing portion have a height-fixed portion whose height does not substantially change, located closer to the corner of the corner portion than the height-changing portion.

4. An animal intrusion prevention fence as described in any one of claims 1 to 3, wherein the maximum height difference between the corner portion and other parts of the animal intrusion prevention fence is 450 mm or more.

5. The fence portion and the corner portion include a base portion provided on the ground and a mesh portion provided on the base portion, A step is provided between the base portion and the mesh portion, with the outer surface of the mesh portion being located more inward than the outer surface of the base portion, and a cover member is provided between the outer surface of the base portion and the outer surface of the mesh portion to cover the step, An animal-proof fence as described in any one of claims 1 to 4, wherein the cover member comprises an inclined plate that slopes inward from the outer surface of the base portion toward the outer surface of the mesh portion.

6. An outdoor facility comprising an animal intrusion prevention fence as described in any one of claims 1 to 5 and an elevated area formed at an opposite position on the outside of the fence portion and / or the corner portion.

Images