Wind and snow protection fence

Abstract

To provide a wind-snow protection fence which is simple in structure, and facilitates work for stretching a net-like member.SOLUTION: In the wind and snow protection 3A 1 in which a plurality of support fences are erected at intervals in the left-right direction in an installation place and the net-shaped member 5 is stretched between the support fences by the mounting device 8, the mounting device 8 includes a rod body 31 around which an end 3A of the net-shaped member 5 is wound, a pair of front and rear clamping bodies 3232 and that clamp the rod body 31 around which the end 5T of the net-shaped member 5 is wound, and a mounting means 34 that mounts the clamping bodies 3232 and on the support 3A. 5T. Thus, the bar body 31 wound with the net-like member 5 is held by the pair of holding bodies 3232,, and the pair of holding bodies 3232, are attached to the 3A of the support, so that the net-like member 5 can be stretched, the bar body 31 need not be inserted, workability is improved, the structure is simplified, and the number of components can be reduced.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a wind and snow fence. [Background technology]

[0002] Conventionally, there is a wind and snow fence (for example, Patent Document 1) in which a net-like member is stretched between posts via a retaining member, the retaining member having a storage groove extending in the vertical direction, a pressure-contact member placed on the opening side of the storage groove, and a pressing member placed on the back side of the pressure-contact member, and the end of the net-like member inserted into the storage groove is pressed against the inner wall of the storage groove by the pressure-contact member, and is sandwiched between the pressure-contact member and the pressing member.

[0003] In the above-mentioned wind and snow fence, it is necessary to insert a rod-shaped pressure contact member with the end of the net-like member wrapped around it through the opening at the longitudinal end of the storage groove provided in the holding member, and then slide the rod-shaped pressure contact member in the longitudinal direction, which makes the process of connecting the pressure contact member to the holding member complicated.

[0004] In contrast to this, there is a wind and snow fence (for example, Patent Document 2) in which a net-like member is stretched in the left-right direction via vertical frame members between pillars set upright at a distance, the vertical frame members comprising a vertical frame member main body, the vertical frame member main body comprising a storage section extending in the up-down direction, a core material stored in the storage section, a pressing member that presses the core material in the left-right direction, and a protruding section that protrudes in the left-right direction towards the inside of the storage section at a position opposite the pressing member, the ends of the net-like member are fixed to and wound around the core material, and the core material around which the net-like member stored in the storage section is wrapped is sandwiched between the pressing member, the protruding section and the core material.

[0005] In the above-mentioned wind and snow fence, the core material around which the ends of the net-like member are wrapped can be inserted into the storage section from the diameter direction, making it easy to connect the ends of the net-like member to the vertical frame member.

[0006] However, the wind and snow fence in Patent Document 2 has the problem of a complex structure, as it uses multiple complex parts, such as the vertical frame material body, core material, pressing members, and decorative members, all of which have complex shapes.

[0007] Furthermore, in the wind and snow fence of Patent Document 1, the pressure-connecting members wrapped with net-like members are attached with a shift in the front-to-rear direction relative to the tensioning bolts fixed to the posts (Figure 2 of Patent Document 1), so when the tension of the net-like members is applied to the pressure-connecting members, a bending moment is applied to the tensioning bolts, which could damage the threaded portions of the tensioning bolts. Similarly, in the wind and snow fence of Patent Document 2, the core material wrapped with net-like members is attached with a shift in the front-to-rear direction relative to the tensioning bolts fixed to the posts (Figure 4 of Patent Document 2), so when the tension of the net-like members is applied to the pressure-connecting members, a bending moment is applied to the tensioning bolts, which could damage the threaded portions of the tensioning bolts. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-74358 [Patent Document 2] Japanese Patent Application Publication No. 2018-21413 Summary of the Invention [Problem to be solved by the invention]

[0009] In view of the above-mentioned problems, the present invention aims to provide a wind and snow fence with a simple structure and easy installation of net-like members. [Means for solving the problem]

[0010] In order to achieve the above object, the invention of claim 1 is a wind and snow fence in which a plurality of posts are erected at an installation location at intervals on the left and right, and a net-like member is stretched between these posts by an attachment device, wherein the attachment device comprises a rod body around which the ends of the net-like member are wound, a pair of clamping bodies that clamp the rod body around which the ends of the net-like member are wound, and attachment means for attaching the clamping bodies to the posts.

[0011] The invention of claim 2 is characterized in that the clamping body integrally comprises clamping portions in the left-right direction and mounting portions that are attached to the support, and is provided with a tightening means that tightens the pair of clamping portions and the mounting means that attaches the mounting portions to the support when the rod body with the ends of the net-like member wrapped around it is placed between the inner surfaces of the pair of clamping portions, and is configured so that the distance between the mounting portions and the support can be adjusted.

[0012] The invention according to claim 3 is characterized in that the pair of clamping bodies have the same cross-sectional shape.

[0013] The invention according to claim 4 is characterized in that the inner surfaces of the pair of clamping bodies are provided with clamping grooves into which the rod bodies around which the ends of the net-like member are wound are engaged.

[0014] The invention according to claim 5 is characterized in that the fastening means includes screw means that is inserted into clamping portion through-holes formed in the pair of clamping portions and fastens the pair of clamping portions.

[0015] The invention of claim 6 is characterized in that the mounting means comprises left-right mounting portion through-holes drilled in the mounting portions of the pair of clamping bodies, a pair of left-right screw rods fixed to the support and inserted into the mounting portion through-holes, and a female screw body screwed into the tip end of the screw rods inserted into the mounting portion through-holes. [Effects of the Invention]

[0016] According to the configuration of claim 1, a rod body with the end of the net-like member wrapped around it is clamped between a pair of clamping bodies, and the pair of clamping bodies is attached to a support, so the net-like member can be stretched.This eliminates the need to insert a rod body, making it easy to work with, and the structure is simple, requiring fewer parts.

[0017] According to the configuration of claim 2, the clamping body has a simple structure equipped with a clamping portion and an attachment portion, and the rod body can be clamped by tightening the pair of clamping portions with the tightening means, and the net-like member can be stretched by adjusting the distance between the attachment portion and the support with the attachment means.

[0018] According to the configuration of claim 3, the pair of clamping bodies are common parts, which simplifies parts management and improves assembly workability.

[0019] According to the configuration of claim 4, the rod body is clamped in a positioned state between the pair of clamping grooves, and the rod body can be prevented from slipping out or moving between the inner surfaces.

[0020] According to the configuration of claim 5, the pair of clamping portions can be fastened by the screw means to clamp the rod.

[0021] According to the configuration of claim 6, the distance between the support pillar and the pair of clamping bodies can be adjusted by the screwing position of the female screw body, and by connecting the pair of clamping bodies to the pair of screw rods in a positioned state, the pair of clamping bodies can be stably supported by the pair of screw rods against forces applied to them. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is an overall front view showing a first embodiment of the present invention. [Figure 2] FIG. 10 is an exploded perspective view of the net-like member and the clamping means. [Figure 3] FIG. 10 is a perspective view illustrating the attachment of the clamping means to the support pole. [Figure 4] FIG. 10 is a plan cross-sectional view of the mounting device for the intermediate support pole. [Figure 5] FIG. 10 is a plan cross-sectional view of the essential parts of the mounting device for the intermediate support pole. [Figure 6] FIG. 10 is a plan sectional view of the terminal support pole mounting device of the same. [Figure 7] FIG. [Figure 8] 8A and 8B show the upper part of the terminal support pillar, and FIG. 8A is a front view and FIG. 8B is a plan view. [Figure 9] 9A and 9B are perspective views of the end of the connecting rod, respectively, before and after attachment with bolts. [Figure 10] FIG. 10 is a cross-sectional plan view showing the state in which the support web portion of the fiber rope material is inserted. [Figure 11] FIG. 10 is a vertical cross-sectional view showing the state in which the support web portion of the fiber rope material is inserted. [Figure 12] FIG. 10 is a cross-sectional plan view showing the structure for attaching the end of the fiber rope material to the support pole. [Figure 13] FIG. 10 is a vertical cross-sectional view showing the structure for attaching the end of the fiber rope material to the support pole. [Figure 14] FIG. 6 is a cross-sectional plan view of a mounting device for an intermediate support, showing a second embodiment of the present invention.

[0023] Preferred embodiments of the present invention will be described with reference to the accompanying drawings. Note that the embodiments described below do not limit the scope of the present invention as defined in the claims. Furthermore, not all of the configurations described below are necessarily essential requirements for the present invention. Example 1

[0024] 1 to 13 show a first embodiment of the present invention, and as shown in Fig. 1, a wind and snow fence 1 is configured by erecting a plurality of posts 3, 3A at an installation location 2, for example, four posts 3, 3A, 3A, 3, and protective surfaces 4 provided between each of the posts 3, 3A, 3A, 3, and these four posts 3, 3A, 3A, 3 are erected at equal intervals in the left-right direction. The installation location 2 is the upper surface of a concrete foundation or other installation surface.

[0025] The support 3 is an end support provided at the end of the wind and snow fence 1, and the support 3A is an intermediate support provided between the end supports 3, 3; in this example, two intermediate supports 3A, 3A are provided at equal intervals between the terminal supports 3, and the protective surface 4 is provided between the four supports 3, 3A, 3A, 3.

[0026] The protective surface 4 includes a net-like member 5, connecting rods 6 provided between the tops of the posts 3, 3A, 3A, 3, and cross ropes 7 provided between the posts 3, 3A, 3A, 3, and the ends 5T of the net-like member 5 are connected to the posts 3, 3A, 3A, 3 by mounting devices 8. The net-like member 5 is exemplified by a sheet of polyester fibers arranged vertically and horizontally in a mesh pattern and coated with acrylic resin, and the sheet is flexible and breathable due to the weave (not shown). For example, if a wind and snow fence 1 is installed along the length of a road to protect against wind and snow, the road side is the front of the wind and snow fence 1, and the cross ropes 7 are provided on the front side of the wind and snow fence 1, with the rear of the wind and snow fence 1 facing away from the road.

[0027] The posts 3, 3A are made of H-shaped steel with both flanges 11, 11 located at the front and rear of the wind and snow fence 1 connected at the center of the left and right width direction by a web portion 12, and as shown in Figure 1, a base plate 13 is fixed to the bottom end, and this base plate 13 is fixed to the installation location 2 with multiple anchors 14, and the posts 3, 3A, 3A, 3 are erected at the installation location 2. The anchors 14 are Chemical Anchors (registered trademark).

[0028] 8 and 9, the connecting rod 6 is made of a square steel pipe, and a mounting member 21 for attaching the connecting rod 6 is fixed to the upper part of the support pillars 3, 3A. The mounting member 21 is made of a rectangular metal plate, and the connecting rod 6 is fixed to the outer surface of the web portion 12 of the support pillars 3, 3A and to the inner surface of both flange portions 11, 11 of the support pillars 3, 3A by welding or the like, and the mounting member 21 has a through hole 21T (FIG. 8(B)) for attaching the end of the connecting rod 6.

[0029] A through-hole 22T communicating with the through-hole 21T is drilled in the lower surface 22 of the connecting rod 6 corresponding to the through-hole 21T, and a bolt 24 is inserted into these through-holes 21T, 22T from above. A washer 25 is inserted through this bolt 24. A through-hole 23T is drilled in the upper surface 23 of the connecting rod 6 corresponding to the through-hole 22T, and this through-hole 23T is formed with a larger diameter than the through-hole 22T so that a socket wrench 27, which is a tool, can be inserted through it from above to turn the bolt 24. The bolt 24 is turned with the socket wrench 27, and the bolt 24 is threaded into a nut 26, thereby fixing the end of the connecting rod 6 to the mounting member 21. The bolt 24 is inserted through the through-hole 23T and then into the through-holes 22T, 21T.

[0030] The ends of connecting rods 6, 6 are connected to the left and right sides of the upper part of the intermediate support 3A, and the end of connecting rod 6 is connected to the inside of the left and right sides of the terminal support 3, and the mounting member 21 on the outside of the left and right sides of the terminal support 3 to which the connecting rod 6 is not connected acts as a reinforcing rib for the support 3 in the same way as the other mounting members 21.

[0031] The intermediate pillars 3A, 3A have the mounting members 21, 21 attached to both the left and right sides thereof, and the upper parts of the adjacent pillars 3, 3A, 3A, 3A, 3 are connected by a connecting rod 6.

[0032] In a wind and snow fence 1 in which support posts 3, 3A, 3A, 3 are erected at an installation location 2 at a distance on the left and right, and a net-like member 5 is stretched between these support posts 3, 3A, 3A, 3 by the attachment device 8, the attachment device 8 comprises a rod 31 around which an end 5T of the net-like member 5 is wound, clamping means 33 having a pair of clamping bodies 32, 32 that clamp the rod 31 around which the end 5T of the net-like member 5 is wound, and attachment means 34 that attaches the clamping means 33 to the support posts 3, 3A. The clamping bodies 32 have a length corresponding to the height of the net-like member 5.

[0033] 1, the net-like member 5 has a height approximately half that of the supports 3, 3A, 3A, 3, and is stretched in two tiers, upper and lower, between the supports 3, 3A, 3A, 3. The end 5T side of the net-like member 5 is wound around the metal rod 31, and with the ends 5T and 5T sides overlapping, they are sewn together at the stitching 41. The rod 31 is made of round steel, and its surface is plated by hot dip dipping.

[0034] The clamping body 32 is an extruded aluminum product that, when in use, has the same cross section in the height direction and forms a generally L-shaped cross section with a clamping portion 51 in the left-right direction and an attachment portion 52 in the front-rear direction. The pair of clamping bodies 32, 32 are assembled by butting together base-end abutting surfaces 54, 54 of inner surfaces 53, 53.

[0035] As shown in Figure 7 and other figures, the inner surfaces 53, 53 of the clamping bodies 32, 32 are provided with base end abutment surfaces 54, 54 where the pair of clamping bodies 32, 32 are abutted from the base end side, recesses 55, 55 recessed on the outer surface side, opposing portions 56, 56 that face each other with a gap 56S when the base end abutment surfaces 54, 54 are abutted, arc-shaped clamping grooves 57, 57 are provided on the tip side of these opposing portions 56, 56 and clamp the rod body 31 with the wound end 5T therebetween, and slip-out prevention portions 58, 58 are provided at the tip of these clamping grooves 57, 57, and when clamped, the minimum gap portion of the slip-out prevention portions 58, 58 is smaller than the diameter of the rod body 31, and there are inclined inner surface portions 59 (Figure 7) where the gap widens from the minimum gap portion toward the tip.

[0036] By providing the recesses 55, 55, a gap 56S is formed between the opposing portions 56, 56 when the base end side abutting surfaces 54, 54 are abutted against each other.

[0037] In the pair of clamping parts 51, 51, a plurality of clamping part through holes 51T, 51T in the front-to-rear direction are drilled at intervals in the height direction (the length direction of the clamping body 32) between the recessed part 55 and the clamping groove 57 (FIG. 2), and by inserting a bolt 62 through the clamping part through holes 51T, 51T and washers 61, 61 on both sides and screwing a nut 63 onto this bolt 62, the rod body 31 with the wound end 5T is clamped and fixed between the clamping grooves 57, 57 of the pair of clamping bodies 32, 32. The bolt 62 has a head 62H that is hexagonal or the like.

[0038] The bolt 62, washer 61, and nut 63, which constitute the screw means, constitute part of the clamping means 33. The pair of clamping portions 51, 51 abut their base-end abutting surfaces 54, 54, and sandwich the rod body 31 with the end portion 5T wound in the clamping grooves 57, 57. Before the bolt 62 is tightened, a gap 56S is formed between the opposing portions 56, 56. The bolt 62 constitutes the screw means, and the bolt 62 and the nut 63 constitute the fastening means 64. When the rod body 31 is sandwiched between the clamping grooves 57, 57 and the bolt 62 is tightened to fix the rod body 31, a gap 56S is formed between the opposing portions 56, 56.

[0039] As shown in Figure 3, the mounting means 34 comprises multiple stages of through holes 52T spaced apart vertically in the mounting portion 52 of the clamping body 32, and multiple stages of through holes 12T spaced apart vertically in the web portion 12 of the support posts 3, 3A, and these through holes 12T are provided at positions equidistant from the center of the web portion 12 in the front-to-rear direction at the front and rear of the web portion 12, corresponding to the through holes 52T, 52T of the pair of clamping bodies 32, 32.

[0040] The mounting means 34 also includes a plurality of washers 71, 71A, a plurality of fully threaded bolts 72, 72 serving as threaded rods, and a plurality of nuts 73, 73A serving as female thread bodies. As shown in Fig. 4, in the case of the intermediate support 3A, the fully threaded bolt 72 is fixed to the support 3A by aligning the approximate center of the longitudinal direction of the fully threaded bolt 72 with the through hole 12T and sandwiching the web portion 12 between the nut 73, washers 71, 71, and nut 73.

[0041] The rod 31 around which the end 5T of the net-like member 5 is wound is sandwiched between the clamping grooves 57, 57 of the pair of clamping bodies 32, 32 and clamped with bolts 62 and nuts 63. In this way, the rod 31 can be connected by being sandwiched between the clamping bodies 32, 32 from the front and back, making the connecting work easier than in the conventional method of inserting a rod into a groove.

[0042] Furthermore, as shown in Figure 7, the bolt 62 is positioned at the opposing portions 56, 56 with a gap 56S between the abutting base end abutment surfaces 54, 54 and the rod body 31, so that the tightening force of the bolt 62 is applied between the opposing portions 56, 56 on both the left and right sides and to the clamping grooves 57, 57, allowing the rod body 31 to be securely clamped between the clamping grooves 57, 57.

[0043] After connecting the clamping body 32 to the end 5T of the net-like member 5 in this manner, the fully threaded bolts 72, 72 fixed to the support 3A are inserted into the through holes 52T, 52T of the clamping body 32, washers 71A, 71A are inserted into the fully threaded bolts 72, 72, and nuts 73A, 73A are screwed onto them, thereby connecting the clamping means 33 to the support 3A.

[0044] In this case, by tightening the nut 73, the clamping bodies 32, 32 move toward the support 3A, making it possible to adjust the distance between the mounting portion 52 and the support 3A, thereby tensioning the net-like member 5. Conversely, by loosening the nut 73, the distance between the support 3, 3A and the clamping bodies 32, 32 can be increased.

[0045] As shown in FIG. 6, the clamping body 32 is connected to the end support 3 only on the support 3A side adjacent to the fully threaded bolt 72.

[0046] Next, we will explain the cross rope 7. The cross rope 7 uses two fiber rope materials 81, 81A made of synthetic resin fiber, one end of one fiber rope material 81 is connected to the other end of a turnbuckle 82 serving as a connector, one end of this turnbuckle 82 is connected to a plate bracket 84 fixed to the top of one end support 3 (the support 3 on the right side in Fig. 1), and from this end support 3 side, the fiber rope material 81 is inserted through a through hole 85 (Fig. 10) in the bottom of the web portion 12 of the adjacent support 3A and through hole 85 (Figs. 10 and 11) in the top of the web portion 12 of the adjacent support 3, and the other end is connected by a shackle 83 serving as a connector to a plate bracket 84 (Fig. 12) fixed to the bottom of the end support 3 (the support 3 on the left side in Fig. 1). The bracket 84 is provided with a connecting hole 84A through which the shackle shaft 83A of the shackle 83 is inserted.

[0047] One end of another fiber rope material 81A is connected to the other end of a turnbuckle 82, and one end of this turnbuckle 82 is connected to a plate-shaped bracket 84 fixed to the bottom of one of the terminal support columns 3 (the right-hand support column 3 in Figure 1).From the side of this terminal support column 3, the fiber rope material 81A is inserted through a through hole 85 (Figures 10 and 11) at the top of the web portion 12 of the adjacent support column 3A and through a through hole 85 (Figure 10) at the bottom of the web portion 12 of the adjacent support column 3, and the other end is connected to a plate-shaped bracket 84 (Figure 13) fixed to the top of the terminal support column 3 by a shackle 83.

[0048] As shown in Figures 12 and 13, the base end of the bracket 84 is fixed to the front side of the web portion 12 of the terminal support 3, and the bracket 84 is formed to be long in the left-right direction. Corresponding to this bracket 84, an insertion hole 86 is drilled in the mounting portion 52 of the front clamping body 32, and this insertion hole 86 is in the form of a long hole that is long in the up-down direction. The bracket 84 is loosely inserted, and with the bracket 84 inserted into the insertion hole 86, the position of the clamping body 32 can be adjusted in the left-right direction.

[0049] A turnbuckle 82 or a shackle 83 is connected to the connection hole 84A (Fig. 12) drilled in the bracket 84, and the ends of the fiber rope materials 81, 81A are connected to the turnbuckle 82 or the shackle 83. The turnbuckle 82 is connected to the support post 3 at one end (on the right side in Fig. 1), and the shackle 83 is connected to the support post 3 at the other end (on the left side in Fig. 1).

[0050] 10 and 11 show the structure around the through-hole 85. As shown in the drawings, front-to-rear receiving cylinders 91 are disposed horizontally at positions sandwiching the through-hole 85 from the left and right, and these left and right receiving cylinders 91 are rotatably mounted by front-to-rear bolts 92 that are inserted through front and rear flanges 11, and the bolts 92 are inserted through washers 93, and a nut 94 is inserted through a washer 93A and screwed onto the tip of the bolt 92 that has passed through the flanges 11, and the receiving cylinders 91 are rotatably mounted on the bolts 92.

[0051] In the through hole 85 at the top of the support 3A, fiber rope materials 81, 81A are hung over the left and right receiving cylinders 91, 91, and the heights of the left and right receiving cylinders 91, 91 are set so that the hung fiber rope materials 81, 81A pass through the center of the through hole 85 in the height direction, with both sides of the hung fiber rope materials 81, 81A facing diagonally downward as shown in Fig. 11. Meanwhile, although not shown, in the through hole 85 at the bottom of the support 3A, fiber rope materials 81, 81A are hung below the left and right receiving cylinders 91, 91, and the heights of the left and right receiving cylinders 91, 91 are set so that the hung fiber rope materials 81, 81A pass through the center of the through hole 85 in the height direction, with both sides of the hung fiber rope materials 81, 81A facing diagonally upward as shown in Fig. 1.

[0052] As shown in FIG. 11, the mounting portion 52 of the clamping body 32 is provided with a long hole 101 for loosely inserting the fiber rope material 81, 81A. This long hole 101 is formed long in the vertical direction so that the distance between the mounting portion 52 and the support posts 3, 3A, 3A, 3 can be adjusted with the fiber rope material 81, 81A loosely inserted. At the upper portion of the support post 3A, as shown in FIG. 11, the fiber rope material 81, 81A is arranged diagonally downward from the left and right receiving cylinders 91, 91 toward the left and right outside. Meanwhile, at the lower portion of the support post 3A, as shown in FIG. 1, the fiber rope material 81, 81A is arranged diagonally upward from the left and right receiving cylinders toward the left and right outside. The long hole 101 is formed long in the vertical direction so that the oblique fiber rope material 81, 81A can be inserted. The shape around the through-hole 85 at the lower portion of the support post 3A is upside down compared to the shape around the through-hole 85 in FIG. 11.

[0053] Therefore, the fiber rope material 81, 81A inserted into the through hole 85 is hung on the rotatable receiving cylinder bodies 91, 91 and does not come into contact with the edge of the through hole 85, so even if the fiber rope material 81, 81A is stretched by the force received from the net-like member 5, it can move smoothly within the through hole 85, and the load is not concentrated in one area on the fiber rope material 81, 81A, and the entire length of the fiber rope material 81, 81A can withstand the force received from the net-like member 5.

[0054] Thus, in this embodiment, which corresponds to claim 1, a wind and snow fence 1 has a plurality of posts 3, 3A, 3A, 3 erected at an installation location 2 at intervals on the left and right, and a net-like member 5 stretched between these posts 3, 3A, 3A, 3 by an attachment device 8, in which the attachment device 8 comprises a rod 31 around which an end 5T of the net-like member 5 is wound, a pair of front and rear clamping bodies 32, 32 that clamp the rod 31 around which the end 5T of the net-like member 5 is wound, and attachment means 34 for attaching the clamping bodies 32, 32 to the posts 3, 3A, 3A, 3.Therefore, the net-like member 5 can be stretched by clamping the rod 31 around which the net-like member 5 is wound between the pair of clamping bodies 32, 32 and attaching the pair of clamping bodies 32, 32 to the posts 3, 3A, 3A, 3; there is no need to insert the rod 31, which makes attachment easy, and the structure is simple and the number of parts required is reduced.

[0055] As described above, in this embodiment, corresponding to claim 2, the clamping body 32 integrally comprises clamping portions 51 in the left-right direction and mounting portions 52 for mounting to the support posts 3, 3A, 3A, 3, and is provided with a fastening means 64 for fastening the pair of clamping portions 51, 51 and a mounting means 34 for mounting the mounting portions 52 to the support posts 3, 3A, 3A, 3 in a state where the rod body 31 around which the end portion 5T of the net-like member 5 is wound is disposed between the inner surfaces 53, 53 of the pair of clamping portions 51, 51, and The attachment means 34 is configured so that the distance between the mounting portion 52 and the support 3, 3A, 3A, 3 can be adjusted, so that the clamping body 32 has a simple structure comprising a clamping portion 51 and an attachment portion 52, and the rod body 31 can be clamped by tightening the pair of clamping portions 51, 51 with the tightening means 64, and the net-like member 5 can be stretched by adjusting the distance between the mounting portion 52 and the support 3, 3A, 3A, 3 with the attachment means 34.

[0056] In this embodiment, corresponding to claim 3, the pair of clamping bodies 32, 32 have the same cross-sectional shape, and therefore the pair of clamping bodies 32, 32 are common parts, which simplifies parts management and improves assembly workability.

[0057] In this embodiment, corresponding to claim 4, clamping grooves 57, 57 are provided on the inner surfaces 53, 53 of a pair of clamping bodies 32, 32, into which the rod body 31 around which the end 5T of the net-like member 5 is wound engages, so that the rod body 31 is clamped in a positioned state between the pair of clamping grooves 57, 57, preventing the rod body 31 from slipping out or moving between the inner surfaces 53, 53.

[0058] Thus, in this embodiment, corresponding to claim 5, the fastening means 64 is provided with a bolt 62 which is a screw means that is inserted into the clamping portion through holes 51T, 51T drilled in the pair of clamping portions 51, 51 and fastens the pair of clamping portions 51, 51, and therefore the rod body 31 can be clamped by fastening the pair of clamping portions 51, 51 with the bolt 62.

[0059] Thus, in this embodiment, corresponding to claim 6, the mounting means 34 comprises left-right mounting portion through holes 52T, 52T drilled in the mounting portions 52, 52 of the pair of clamping bodies 32, 32, a pair of left-right threaded rods, namely, fully threaded bolts 72, fixed to the supports 3, 3A, 3A, 3 and inserted through the mounting portion through holes 52T, 52T, and nuts 73, namely, female threaded bodies, threaded onto the tips of the fully threaded bolts 72 inserted through the mounting portion through holes 52T, 52T.Therefore, the distance between the supports 3, 3A and the pair of clamping bodies 32, 32 can be adjusted by the screwing position of the nuts 73, and further, by connecting the pair of clamping bodies 32, 32 to the pair of fully threaded bolts 72, 72 in a positioned state, the pair of clamping bodies 32, 32 can be stably supported by the pair of fully threaded bolts 72, 72 against forces applied to the pair of clamping bodies 32, 32.

[0060] As an effect of the embodiment described below, the pair of front and rear clamping bodies 32, 32 are extruded aluminum products with the same cross-sectional shape, which simplifies parts management and improves assembly workability. Also, the pair of front and rear clamping bodies 32, 32 are the same length, and the plurality of through holes 51T and the plurality of through holes 52T are all provided in vertically symmetrical positions, so the clamping body 32 can be used either on the front or rear, making it easy to use.

[0061] Furthermore, with the base end abutment surfaces 54, 54 of the pair of clamping portions 51, 51 butting against each other and clamping the rod body 31 with the end portion 5T wound in the clamping grooves 57, 57, a gap 56S is formed between the opposing portions 56, 56 before the bolt 62 is tightened, and the gap 56S becomes part of the interference, making it possible to firmly clamp the rod body 31. Furthermore, since the clamping portion through-holes 51T, through which the bolts 62 serving as tightening means are inserted, are provided at positions away from the net-like member 5, there is no need to drill holes in the net-like member 5.

[0062] In addition, a recess 55 recessed toward the outer surface is formed on the inner surface of the clamping body 32, and although this part would be thicker than other parts in a shape without the recess 55, the recess 55 makes the entire clamping body 32 have approximately the same thickness, making extrusion molding easy.

[0063] Furthermore, the fiber rope material 81, 81A inserted into the through hole 85 is hung on rotatable receiving cylinder bodies 91, 91 and does not come into contact with the edge of the through hole 85. Therefore, even if the fiber rope material 81, 81A is stretched by the force received from the net-like member 5, it can move smoothly within the through hole 85, and the load is not concentrated in one area on the fiber rope material 81, 81A, and the entire length of the fiber rope material 81, 81A can withstand the force received from the net-like member 5.

[0064] In addition, an insertion hole 86 is drilled in the mounting portion 52 of the front clamping body 32, and this insertion hole 86 is a long hole that is long in the vertical direction, and the bracket 84 is loosely inserted into it.With the bracket 84 inserted into the insertion hole 86, the position of the clamping body 32 can be adjusted in the left-right direction.

[0065] In addition, a long hole 101 is drilled in the mounting portion 52 of the clamping body 32, into which the fiber rope material 81, 81A is loosely inserted, and since this long hole 101 is formed long in the vertical direction, the position of the clamping body 32 can be adjusted in the left-right direction with the fiber rope material 81, 81A inserted into the long hole 101. Example 2

[0066] FIG. 14 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

[0067] In this example, the length of the fully threaded bolt 72 relative to the flange portion 11 is made longer than in Example 1, and a nut 73B, which is a female thread body, is screwed onto the end of the fully threaded bolt 72 together with the nut 73A, forming a double nut to prevent loosening.

[0068] In this way, the present embodiment also provides the same functions and effects as the first embodiment.

[0069] Furthermore, as shown in this embodiment, in Example 1, the length of the fully threaded bolt 72 relative to the flange portion 11 can be made longer, and a nut 73B, which is a female screw body, can be screwed onto the end of the fully threaded bolt 72 together with the nut 73A, thereby forming a double nut for preventing loosening.

[0070] The present invention is not limited to the present embodiment, and various modifications are possible within the scope of the present invention. For example, the cross-sectional size and length of the posts and connecting rods of the safety fence can be set as appropriate. In the embodiment, a net-like member with a size that divides the protective surface into two halves, upper and lower, is used. However, a net-like member with the same height as the protective surface may also be used. Furthermore, while headed bolts are used as the screw means, fully threaded bolts may also be used. In this case, female threads may be threaded onto both ends of the fully threaded bolt. Furthermore, the net-like member is not limited to the one exemplified in the embodiment, and may be a cloth-like member, a synthetic resin sheet-like member, a flexible sheet with a punched finish, or any other suitable material. In the embodiment, a fiber rope material is used for the cross rope, but various materials may be used for this rope material. [Explanation of symbols]

[0071] 1 Wind and snow fence 2. Installation location 3,3A strut 5 Net-like member 8 Mounting device 31 Rod 32 Clamping body 33 Clamping means 34 Mounting means 51 Clamping part 51T clamping part through hole 52 Mounting part 52T Mounting hole 53 Inner 54 Base end abutment surface 57 Clipping groove 62 Bolt (screw means) 63 Nut (female thread body) 64 Fastening means 71 Washer 72 Fully threaded bolt (threaded rod) 73 Nut (female thread body)

Claims

1. A wind and snow fence is constructed by erecting a plurality of posts at intervals on the left and right sides of an installation location and stretching a net-like member between these posts using an attachment device. The mounting device comprises: A rod body with an end of the net-like member wound around it; a pair of clamping bodies that clamp the rod body around which the end of the net-like member is wound; an attachment means for attaching the clamping body to the support; A wind and snow fence characterized by comprising:

2. The clamping body integrally includes a clamping portion in the left-right direction and an attachment portion that is attached to the support column, a clamping means for clamping the pair of clamping portions in a state in which the rod body around which the end of the net-like member is wound is disposed between the inner surfaces of the pair of clamping portions; the mounting means for mounting the mounting portion to the support pole, 2. A wind and snow fence according to claim 1, wherein the mounting means is configured so that the distance between the mounting portion and the support pole is adjustable.

3. 3. A wind and snow fence according to claim 2, wherein the pair of sandwiching members have the same cross-sectional shape.

4. 3. A wind and snow fence according to claim 2, wherein the inner surfaces of the pair of clamping bodies are provided with clamping grooves into which the rod bodies around which the ends of the net-like member are wound engage.

5. 3. A wind and snow fence according to claim 2, wherein the fastening means comprises screw means that is inserted into clamping portion through-holes drilled in the pair of clamping portions and fastens the pair of clamping portions together.

6. The attachment means includes attachment portion through-holes bored in the attachment portions of the pair of clamping bodies in the left-right direction, and a pair of left and right screw rods fixed to the support and inserted into the mounting hole; 3. The wind and snow fence according to claim 2, further comprising a female screw body that is screwed into the tip end of the threaded rod that is inserted through the mounting hole.

Images