Fixing device for animal protection net

Abstract

To provide a fixture for an anti-animal net capable of pressing the anti-animal net to a ground surface by a wire, by simple work, suppressing entry of a wild animal, and also facilitating work for removing sand accumulated on the anti-animal net.SOLUTION: A fixture 13 for an anti-animal net comprises: a main body 35 whose lower end is driven to a ground surface GL; and a wedge member 37 for fixing the main body 35 to a column 3. The main body 35 comprises: a cylindrical part 27 which is fitted and inserted into the column 3 and is provided with a storage pocket 33 formed by enlarging a part of the cylindrical part in a radial direction; a shaft part 29 which is erected from an outer wall surface of the cylindrical part 27, and to which a wire 11 is wound; and a hook 23 which is provided on a tip of the shaft part 29, and holds the wire 11 wound to the shaft part 29 with the outer wall surface. The wedge member 37 is driven to the storage pocket 33 for fixing the main body 35 to the column 3.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a fixing device for animal protection netting, which is used when installing animal protection netting using wires in farm fields, reforestation areas, etc. [Background technology]

[0002] In recent years, there has been an increase in damage caused by large wild animals such as boars and deer, and small wild animals such as rabbits and civets invading agricultural fields where crops are grown and forested areas where seedlings have been planted, and eating the crops, damaging the bark of seedlings, and eating young leaves. Measures are being taken to combat such damage caused by pests, such as installing animal-prevention netting facilities made of synthetic fibers or synthetic fiber twisted yarn containing metal wires around agricultural fields and forested areas.

[0003] Such animal protection net facilities are formed by driving posts into the ground at specified intervals with a pile driver or the like, and stretching the animal protection net between the installed posts. The animal protection net has a wall section that covers the wall surface from the top to the bottom of the posts, and a skirt section that covers the ground from the bottom of the posts outward. Ropes or wires are stretched between the connection sections between the wall section and the skirt section and at the tips of the skirt section, and anchors for fixing these ropes to the ground have also been proposed (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3187753 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the pull-out force of a typical anchor is said to be about 60 kgf for an iron anchor and about 48 kgf for a plastic anchor. Here, this is smaller than the pull-out force of an adult wild boar, which is about 60 kgf. Also, if the anchor is lifted even slightly, the rope or other parts may come off (pull out), allowing wild animals to lift up the animal-prevention net. The above-mentioned pull-out force of the anchor is the pull-out force of the entire anchor, and in reality, with a much smaller force, wild animals may pull out the anchor a little, lift up the animal-prevention net, and invade the field, etc. Also, during frost season, the soil is worn away by the frost, etc., creating gaps, which may allow the rope or other parts to come off the anchor.

[0006] Furthermore, when installing an animal protection net for 100m in the extension direction, for example, about 170 anchors are required, and the work of driving a large number of anchors into the ground is a heavy burden on the workers. Furthermore, when animal protection net equipment is installed in areas adjacent to mountains, soil that has collapsed from above can accumulate in the animal protection net. In such cases, it becomes necessary to pull out the anchors that have been driven into the ground, lift up the animal protection net, remove the soil that has accumulated in the animal protection net, and then drive the anchors into the ground again, which is a very time-consuming and cumbersome task.

[0007] To provide a fixing device for an animal prevention net that can set up the animal prevention net with simple operations, prevents the intrusion of wild animals, and facilitates the removal of soil and sand accumulated in the animal prevention net. [Means for solving the problem]

[0008] The fixing device for an animal prevention net in the present invention, which solves the above-mentioned object, is a fixing device for an animal prevention net having a wall portion covering the upper and lower portions of a plurality of posts installed on the ground at a predetermined interval, and a skirt portion covering the ground from the lower portion of the posts outward, which is used when pressing down the connection portion between the wall portion and the skirt portion to the ground with a wire, A main body having a lower end portion driven into the ground and a wedge member for fixing the main body to the support pole, The body includes: a cylindrical portion that is inserted into the support and has a storage pocket formed by expanding a portion of the cylindrical portion in a radial direction; a shaft portion that rises from an outer wall surface of the cylindrical portion and around which the wire is wound; a hook portion provided at a tip of the shaft portion and configured to hold the wire wound around the shaft portion together with the outer wall surface, The wedge member is driven into the storage pocket, thereby fixing the main body to the support.

[0009] According to the fixing device for an animal protection net of the present invention, since it has the shaft portion around which the wire is wound and the hook portion that holds the wire wound around the shaft portion together with the outer wall surface, the wire can be held by simply winding the wire around the shaft portion. In addition, the body holding the wire is driven into the ground, and the wedge member is driven into the storage pocket to fix the body to the support, so that the connection portion of the animal protection net can be pressed down to the ground by the wire. Furthermore, a fixing means using a wedge action of driving the wedge member is adopted for fixing the body to the support. As a result, the body is firmly fixed to the support, and the wire wound around the shaft portion of the body is less likely to be lifted. As a result, it is possible to further suppress the intrusion of wild animals. Furthermore, if the wedge member is pulled out of the storage pocket and the body is lifted, the animal protection net can also be lifted. This also makes it easier to remove soil and sand that has accumulated in the animal protection net. In addition, the wire in the present invention is a concept that includes not only a single wire but also a wire rope (a rope made by twisting steel wires together to form a strand, and then twisting several of the strands around a fiber core).

[0010] In the fixing device for an animal-proof net of the present invention, the gap between the hook portion and the outer wall surface is formed to a size that allows one of the wires to be accommodated above the shaft portion, The lower portion of the shaft portion may be formed to a size sufficient to accommodate two of the wires.

[0011] Here, below the shaft portion, a lower portion of the outer wall surface facing the hook portion may be formed as an inclined surface that becomes wider downward, so that the size of the outer wall surface can accommodate two of the wires.

[0012] By using such an animal protection net fixing device, simply winding the wire once around the shaft from below causes the wire to be inserted twice into the wide gap below the shaft, and one wire to be housed in the narrow gap above the shaft. This positions the wire at the double insertion portion, improving the force with which the wire is held.

[0013] The relationship between the upper and lower spacings may be reversed, for example, by forming the upper spacing of the shaft portion to accommodate two of the wires and the lower spacing of the shaft portion to accommodate one of the wires. In this embodiment, the wire may be wound once around the shaft portion from above. It is also possible to form the lower spacing of the shaft portion to accommodate one more wire than the upper spacing, for example, by forming the upper spacing of the shaft portion to accommodate two of the wires and the lower spacing of the shaft portion to accommodate three of the wires.

[0014] In addition, in the animal protection net fixing device of the present invention, the tubular portion may have a protrusion at the lower end portion, part of which in the circumferential direction protrudes downward.

[0015] By adopting such an animal protection net fastener, the protrusions make it easier to drive the main body into the ground, improving workability. Also, even if a rotational force acts on the main body, the protrusions provide resistance, making it difficult for the tubular part to rotate. This prevents the wire from loosening, and further prevents the animal protection net from being lifted up by wild animals.

[0016] Furthermore, in the fixing device for animal-proof netting of the present invention, the protrusions may be two opposing tongue-like protrusions that are approximately inverted triangular in side view, provided on the lower end portion at a position rotated 90 degrees left and right when the area where the storage pocket is provided is considered to be the front surface.

[0017] By adopting such an animal-prevention net fixing device, the two tongue-shaped protrusions, which are in a generally inverted triangular shape when viewed from the side and have a relatively wide area, are inserted into the ground, improving the pulling force of the tubular portion against the ground. Also, the net is more resistant to tilting of the posts in the extension direction of the animal-prevention net, on which the tongue-shaped protrusions are provided.

[0018] Furthermore, in the animal protection net fastening device of the present invention, the hook portion may have a shape in which the lower end portion protrudes downward.

[0019] This makes it easier to drive the lower end of the hook into the ground, and makes it difficult for the main body to rotate even if a force in a rotational direction acts on the main body. Also, the wire wound around the shaft is less likely to come off.

[0020] Furthermore, in the fixing device for an animal protection net of the present invention, the wedge member has a flat head portion having a tip extending outward like an eave, and a wedge acting portion extending downward from a base of the head portion, The wedge action portion may have one or more stepped portions formed on a surface that abuts against the storage pocket, the stepped portions determining an amount of driving in that corresponds to a diameter of the support.

[0021] When such an animal-prevention net fastener is adopted, the head and the plurality of steps function as stoppers that determine the driving amount of the wedge member. Therefore, when the wedge member is driven into the storage pocket, the necessary driving amount of the wedge member is automatically set by driving the wedge member into the storage pocket until the lower surface of the head of the wedge member or the lower surface of the step portion at a predetermined position abuts against the upper end of the storage pocket in accordance with the diameter of the support. This reduces the risk of damaging the storage pocket or the wedge member itself due to excessive driving of the wedge member. In addition, when the wedge member is pulled out, the head that protrudes outward like a eaves, or the space between the head and the step portion or the space between the step portions can be used to easily pull out the wedge member. Effect of the Invention

[0022] According to the present invention, it is possible to provide a fixing device for an animal prevention net that allows the installation of the animal prevention net with simple operations, prevents the intrusion of wild animals, and also facilitates the removal of soil and sand that has accumulated in the animal prevention net. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a perspective view showing an animal-proof net facility installed using an animal-proof net fastener according to a first embodiment of the present invention. [Diagram 2] 1 is a perspective view showing an attached state of a fixing device for an animal prevention net according to a first embodiment of the present invention. FIG. [Diagram 3] 1 is an exploded perspective view showing a fixing device for an animal prevention net according to a first embodiment of the present invention. FIG. [Figure 4] 1 is a front view showing a fixing device for an animal prevention net according to a first embodiment of the present invention. [Diagram 5] FIG. 2 is a rear view showing the fixing device for an animal prevention net according to the first embodiment of the present invention. [Figure 6] FIG. 1 is a right side view showing a fixing device for an animal prevention net according to a first embodiment of the present invention. [Figure 7] 1 is a plan view showing a fixing device for an animal prevention net according to a first embodiment of the present invention. [Figure 8] FIG. 2 is a bottom view showing the fixing device for an animal prevention net according to the first embodiment of the present invention. [Figure 9] 5 is a cross-sectional view taken along line AA in FIG. 4, showing the fixing device for an animal-prevention net according to the first embodiment of the present invention. FIG. [Figure 10] FIG. 1 is a right side view showing the state in which the fixing device for an animal prevention net according to the first embodiment of the present invention is attached to three types of posts having different diameters. [Figure 11] FIG. 2 is an explanatory diagram showing the procedure for installing an animal prevention net facility using an animal prevention net fastener according to the first embodiment of the present invention. [Figure 12] FIG. 11 is a perspective view showing a wedge member according to a second embodiment of the present invention. [Figure 13] FIG. 11 is a front view showing a wedge member according to a second embodiment of the present invention. [Figure 14] FIG. 11 is a rear view showing a wedge member according to a second embodiment of the present invention. [Figure 15] FIG. 11 is a right side view showing a wedge member according to a second embodiment of the present invention. [Figure 16] FIG. 11 is a plan view showing a wedge member according to a second embodiment of the present invention. [Figure 17] FIG. 11 is a bottom view showing a wedge member according to a second embodiment of the present invention. [Figure 18] FIG. 11 is a right side view showing an animal protection net fastener incorporating a wedge member according to a second embodiment of the present invention attached to three types of posts having different diameters. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0025] First, the overall configuration of an animal prevention net facility 1 installed using an animal prevention net fastener 13A according to a first embodiment of the present invention will be described with reference to FIG.

[0026] As shown in FIG. 1, an animal prevention net facility 1 is installed in farm fields, reforestation areas, etc., to prevent the intrusion of wild animals. The animal prevention net facility 1 according to this embodiment includes a plurality of posts 3 installed at a predetermined interval A, for example, at intervals of 3 m in the extension direction Y, an animal prevention net 5 long in the extension direction Y attached using the posts 3, a plurality of ropes 10 or wires 11 provided for stretching the animal prevention net 5 in the extension direction Y, an animal prevention net fixing device 13A for holding the wire 11 and pressing the animal prevention net 5 down to the ground GL, and a cap 17 to be placed on the upper end of the post 3. If necessary, a coated wire 15A, a plastic anchor 15B, or the like is used as an auxiliary fixing device 15. The wire 11 may be a wire rope in addition to a solid wire.

[0027] For example, commercially available coated steel pipe posts or FRP posts having a diameter of 38 mm, 35 mm, or 33 mm can be used as the support 3. In the illustrated embodiment, an example is shown in which an FRP support with a diameter of 38 mm and bumps 19 (see FIG. 2, etc.) is used as the support 3.

[0028] The animal prevention net 5 is composed of a net having a length of, for example, about 50 m in the extension direction Y, which has a wall portion 7 that covers the wall surface from the top to the bottom of the support pole 3, and a skirt portion 9 that covers the ground GL from the bottom of the support pole 3 to the outside. The animal prevention net 5 is configured so that a diamond-shaped mesh with a side length of, for example, 5 cm is continuously formed by weaving a string body made of twisted polyethylene thread of a predetermined thickness and a string body made of twisted polyethylene thread with a predetermined number of hard stainless steel wires of a predetermined wire diameter.

[0029] The animal protection net 5 has a wall portion 7 with a height H of about 1 to 2 m and a skirt portion 9 with a width W of about 50 cm. A polyethylene rope 10 with a length of about 55 m is attached to both ends of the animal protection net 5, that is, the upper end of the wall portion 7 and the tip of the skirt portion 9, so as to slip through the mesh of the animal protection net 5. The wire diameter of the rope 10 is, for example, 5 to 10 mm, and the amount of stretch of the rope 10 is about 20%.

[0030] The wire 11 is not particularly limited, but a stainless steel wire rope having a wire diameter of 2 to 3 mm can be used. In this embodiment, a stainless steel wire 11 having a wire diameter of 2 mm is used, and the wire 11 has an elongation amount of about 1.2%, which is almost non-elongating. The wire 11 is installed with a tension of about 10 kgf, which corresponds to the pulling force of a general worker, and presses the connection part between the wall part 7 and the skirt part 9 against the ground GL.

[0031] The coated wire 15A serving as the auxiliary fixing device 15 binds the wall portion 7 of the animal prevention net 5 to the post 3. The plastic anchor 15B serving as the auxiliary fixing device 15 can be embedded to a depth of 40 cm or more. The plastic anchor 15B is used to fix the wire 11 to the ground GL and to fix the rope 10 stretched at the tip of the skirt portion 9 to the ground GL. The plastic anchor 15B for fixing the wire 11 to the ground GL is used in an amount of about one piece for each interval A at which the posts 3 are installed, as necessary. The plastic anchor 15B for fixing the rope 10 to the ground GL is used in an amount of about one or two pieces for each interval A at which the posts 3 are installed.

[0032] Fig. 2 is a perspective view showing an attached state of the fixing device 13A for an animal-prevention net shown in Fig. 1. Also, Figs. 3 to 9 are views showing the fixing device 13A for an animal-prevention net shown in Fig. 1. Specifically, Fig. 3 is an exploded perspective view, Fig. 4 is a front view, Fig. 5 is a rear view, Fig. 6 is a right side view, Fig. 7 is a plan view, Fig. 8 is a bottom view, and Fig. 9 is a cross-sectional view taken along line AA in Fig. 4.

[0033] 2, the cap 17 is an ABS resin member including a cap body 21 that is fitted onto the upper end of the pole 3 from above, and a hook 23. The hook 23 is shaped like a hook for hanging the rope 10 attached to the upper end of the wall portion 7 of the animal protection net 5. In addition, a recess 25 that serves as a storage portion for the bumps 19 is formed in the height direction Z on the inner wall surface of the cap body 21 so that a pole 3 with bumps 19 can be used.

[0034] Next, a specific configuration of the animal prevention net fixing device 13A will be described with reference to Figs.

[0035] The animal protection net fixing device 13A includes a main body 35 whose lower end is driven into the ground, and a wedge member 37 for fixing the main body 35 to the post 3. The main body 35 includes a tubular portion 27 which is inserted into the post 3 and has a storage pocket 33 formed by expanding a part of the storage pocket 33 in the radial direction R (see FIG. 2), a shaft portion 29 which rises from an outer wall surface 43 of the storage pocket 33 and winds the wire 11 around it, and a hook portion 31 which is provided at the tip of the shaft portion 29 and holds the wire 11 wound around the shaft portion 29 together with the outer wall surface 43 of the storage pocket 33. The main body 35 is fixed to the post 3 by driving the wedge member 37 into the storage pocket 33. That is, a fixing means using a wedge action for driving the wedge member 37 is used for fixing the main body 35 to the post 3.

[0036] The main body 35 of this embodiment is configured as an integrally molded member made of ABS resin. The tubular portion 27 of the main body 35 is a substantially cylindrical member, and a square tubular storage pocket 33 is formed on its front surface. In addition, on the inner wall surface of the tubular portion 27, similar to the above-mentioned cap 17, a recess 39 that serves as a storage portion for the bumps 19 formed on the outer peripheral surface of the support 3 is formed in the height direction Z. Note that, when a support without bumps 19 is used, it is possible to adopt an embodiment in which the recess 39 is not formed.

[0037] Furthermore, at the lower end portion of the cylindrical portion 27, two tongue-shaped projections 41 are formed, which are opposed to each other and have a generally inverted triangular shape in side view, projecting downward from the front surface where the storage pocket 33 is provided at positions rotated 90° to the left and right. The tongue-shaped projections 41 correspond to an example of a projection with a part projecting downward in the circumferential direction C (see FIG. 2). The tongue-shaped projections 41 are inserted into the ground from the ground surface GL, improving the pulling force of the cylindrical portion 27 against the ground surface GL. Furthermore, even if a force in the rotational direction acts on the main body 35, the tongue-shaped projections 41 provide resistance, making it difficult for the cylindrical portion 27 to rotate.

[0038] The hook portion 31 is a large-diameter deformed disk-shaped member attached to the tip of the small-diameter shaft portion 29. The front shape of the hook portion 31 is formed like an upside-down egg, with a large-diameter circle placed at the top and a small-diameter circle placed at the bottom protruding slightly downward, and these two circles, large and small, connected by a line segment tangent to the outlines of these two circles. In other words, the hook portion 31 has a shape with its lower end protruding downward. This makes it easier to drive the lower end of the hook portion 31 into the ground GL, making it difficult for the wire 11 to come off. It also acts as a rotational resistance when a rotational force acts on the main body 35.

[0039] As shown in Fig. 9, the gap B between the hook portion 31 and the storage pocket 33 is formed to have different sizes above and below the shaft portion 29. Specifically, above the shaft portion 29, the gap B1 is formed to a size that can accommodate one wire 11 to be used, for example, a gap of about 2 mm for a wire 11 having a wire diameter of 2 mm. Also, below the shaft portion 29, the gap B2 is formed to a size that can accommodate two wires 11 to be used, for example, a gap of about 4 mm for a wire 11 having a wire diameter of 2 mm. In this embodiment, the gap B2 is widened by forming a lower portion of an outer wall surface 43 of the storage pocket 33 facing the hook portion 31 into an inclined surface 45 that widens downward.

[0040] As a result, by simply winding the wire 11 once around the shaft portion 29 of the main body 35 from below, the wire 11 is inserted twice into the wide gap B2 below the shaft portion 29, and one wire 11 is housed in the narrow gap B1 above the shaft portion 29. As a result, the wire 11 is firmly held in a positioned state in the double inserted portion.

[0041] The wedge member 37 is inserted and driven into the storage pocket 33 to fix the main body 35 to the support pole 3. The wedge member 37 corresponds to a positioning and fixing means for the animal prevention net fixing device 13A, which sets the mounting position of the animal prevention net fixing device 13A to the support pole 3. In this embodiment, the wedge member 37, like the main body 35, is formed as a one-piece molded product made of ABS resin.

[0042] As shown in Figs. 3 and 9, the wedge member 37 has a flat head 47 whose tip extends outward like an eaves, and a wedge action part 49 extending downward from the base of the head 47. The wedge action part 49 adopts a hollow (thinned) structure for weight reduction and the like. As shown in Figs. 7 and 8, a concave surface 51 having a curvature that closely contacts the outer circumferential surface of the abutting post 3 is formed on the rear surface of the wedge member 37. On the other hand, as shown in Figs. 3 and 9, a contact surface 53 that is inclined downward and narrows is formed on the front surface of the wedge member 37. The contact surface 53 has a step portion 55 that functions as a stopper that determines the driving amount corresponding to the diameter of the post 3 to be used. In this embodiment, the wedge action part 49 has a hollow structure, so that a pair of step portions 55, 55 are formed on the left and right.

[0043] FIG. 10 is a right side view showing the state in which the animal prevention net fixing device 13A shown in FIG. 1 is attached to three types of posts 3 having different diameters.

[0044] As shown in Fig. 10(a), when attaching the animal-prevention net fixture 13A to a small-diameter support 3A having a diameter of 33 mm, the wedge member 37 is driven in until the upper end face of the storage pocket 33 abuts against the lower face of the head 47. Also, as shown in Fig. 10(b), when attaching the animal-prevention net fixture 13A to a medium-diameter support 3B having a diameter of 35 mm, the wedge member 37 is driven in until the upper end position of the storage pocket 33 is located at an intermediate position slightly above the step portion 55 of the abutment surface 53 of the wedge action portion 49. Furthermore, as shown in Fig. 10(c), when attaching the animal-prevention net fixture 13A to a large-diameter support 3C having a diameter of 38 mm, the wedge member 37 is driven in until the lower step position of the wedge action portion 49 where the upper end face of the storage pocket 33 abuts against the lower face of the step portion 55.

[0045] Next, an example of a procedure for installing the animal prevention net equipment shown in Fig. 1 will be described with reference to Fig. 1 and Fig. 11. Fig. 11 is an explanatory diagram showing the procedure for installing the animal prevention net equipment shown in Fig. 1.

[0046] First, as shown in Fig. 1, the posts 3 are erected at a predetermined interval A, and then, as shown in Fig. 11(a), the tubular portion 27 of the main body 35 is inserted into the post 3 from above, and the upper end of the post 3 is covered with a cap 17. Next, as shown in Fig. 11(b), an animal prevention net 5 is prepared with ropes 10 already threaded through both ends in the width direction X, and the animal prevention net 5 is expanded in the stretching direction Y.

[0047] 11(c), the rope 10 at one end in the width direction X of the animal prevention net 5 spread in the stretching direction Y is hung on the hook 23 of the cap 17 to hang the animal prevention net 5 from the support 3. Next, the wire 11 is prepared and stretched in the stretching direction Y, and while the worker is pulling (applying a tension of about 10 kgf), the wire 11 is wound once around the shaft portion 29 of the main body 35 from below as shown in FIG. 11(d). As a result, the wire 11 is held on the main body 35 with a predetermined tension (about 10 kgf) by gaps B1 and B2 of a predetermined size between the hook portion 31 and the storage pocket 33.

[0048] Next, as shown in Fig. 11(e), the upper surface of the main body 35 is struck with a hammer to drive the lower end portion of the tubular portion 27, including the tongue-shaped projection 41, and the lower end portion of the hook portion 31 into the ground GL. Furthermore, as shown in Fig. 11(f), the wedge member 37 is inserted from above into the storage pocket 33 and the head portion 47 of the wedge member 37 is struck with a hammer to drive it in a predetermined amount, completing the fixing of the animal prevention net fixing device 13A at the post 3. This allows the connection portion between the wall portion 7 and the skirt portion 9 of the animal prevention net 5 to be pressed down to the ground GL by the wire 11.

[0049] 11(d) to 11(f) are repeated to complete the fixing of the animal-prevention net fixing device 13A to all of the posts 3. Next, the other end of the animal-prevention net 5 that is not fixed is pulled outward, and the skirt part 9 is placed over the ground GL, and the other rope 10 that is passed through the tip of the skirt part 9 is driven into the ground GL using a plastic anchor 15B or the like, as shown in FIG.

[0050] 11(h), the wall portion 7 of the animal prevention net 5 is fixed to the support pole 3 using a coated wire 15A or the like. Then, if necessary, the connection portion of the wall portion 7 of the animal prevention net 5 and the skirt portion 9 is fixed to the ground GL using a plastic anchor 15B or the like, and the installation of the animal prevention net equipment 1 is completed.

[0051] Furthermore, when the wedge member 37 is driven into the upper stage, the work of removing the soil and sand accumulated in the animal prevention net 5 can be performed by inserting a crowbar or a slide hammer between the underside of the head 47 of the wedge member 37 and the upper end surface of the storage pocket 33, or by inserting a slide hammer to pull the wedge member 37 out of the main body 35. After the main body 35 is pulled out from the ground GL, the plastic anchors 15B and the like can also be pulled out as necessary, and the animal prevention net 5 can be lifted up for removal. When the wedge member 37 is driven into the stepped portion 55, the work of removing the soil and sand can be performed by inserting a crowbar or a hammer between the underside of the stepped portion 55 and the upper end surface of the storage pocket 33.

[0052] As described above, by using the fixing device for animal protection net 13A according to the first embodiment of the present invention, the animal protection net facility 1 can be installed with extremely simple operations compared to the conventional method that requires the driving in of a large number of plastic anchors. Furthermore, the wire 11 is held by the main body 35, and the main body 35 can be firmly fixed to the support 3 by the wedge action of the wedge member 37. This makes it difficult for the wire 11 to be lifted up.

[0053] When the inventors conducted a lifting test of the wire 11 for the animal prevention net facility 1 using the animal prevention net fixing device 13A of the present invention, the result was that the lifting width of the wire 11 when lifted with 70 kgf was 30 cm or less. It is said that the pulling force of an adult boar is around 60 kgf, and the width of the body of an adult boar, including the legs, easily exceeds 30 cm, so it is clear that this is effective against boars. Furthermore, with a pulling force of several kgf, which is the pulling force of rabbits, etc., the lifting width of the wire 11 is several cm, and with a pulling force of about 20 kgf, which is the pulling force of deer, etc., the lifting width of the wire 11 could be suppressed to 20 cm or less.

[0054] From these, it can be seen that by using the animal prevention net fastener 13A of the present invention, it is possible to easily install the animal prevention net facility 1 that can sufficiently prevent the intrusion of wild animals. Also, as described above, by pulling out the wedge member 37 from the main body 35, pulling out the main body 35 from the ground GL, and then lifting up the animal prevention net 5, it is possible to remove the soil and sand that has accumulated in the animal prevention net 5. Therefore, compared to conventional animal prevention net facilities that require the pulling out of a large number of plastic anchors that have been driven into the ground, the work of removing the soil and sand that has accumulated in the animal prevention net 5 is also greatly reduced. Furthermore, compared to conventional animal prevention net facilities, the number of plastic anchors used can be greatly reduced, which also contributes to reducing the amount of plastic used.

[0055] Next, an animal-prevention net fastener 13B according to a second embodiment of the present invention will be described. Note that the animal-prevention net fastener 13B according to the second embodiment differs only in the configuration of the wedge member 37, and the remaining configurations of the wedge member 37 and the main body 35 are the same as those of the animal-prevention net fastener 13A according to the first embodiment described above. Therefore, the following description will omit the description of the configurations similar to those of the first embodiment described above, and will focus on the configurations unique to the second embodiment that differ from the first embodiment.

[0056] Fig. 12 to Fig. 17 are views showing wedge member 37 according to a second embodiment of the present invention. Specifically, Fig. 12 is a perspective view of wedge member 37, Fig. 13 is a front view of wedge member 37, Fig. 14 is a rear view of wedge member 37, Fig. 15 is a right side view of wedge member 37, Fig. 16 is a plan view of wedge member 37, and Fig. 17 is a bottom view of wedge member 37.

[0057] In the first embodiment described above, only one step portion 55 is provided on the abutment surface 53, whereas in the wedge member 37 of the second embodiment, as shown in Figs. 12 to 17, two step portions 55, a first step portion 55A and a second step portion 55B, are provided on the abutment surface 53. Of these, the first step portion 55A provided at the top functions as a stopper that determines the driving amount of the medium-diameter support 3B having a diameter of 35 mm, and the second step portion 55B provided at the bottom functions as a stopper that determines the driving amount of the large-diameter support 3C having a diameter of 38 mm.

[0058] FIG. 18 is a right side view showing an animal protection net fixing device 13 to which a wedge member 37 according to a second embodiment of the present invention is applied, attached to three types of posts having different diameters.

[0059] As shown in Fig. 18(a), when attaching the animal-prevention net fixture 13B to a small-diameter support 3A having a diameter of 33 mm, the wedge member 37 is driven into the upper position of the wedge action portion 49 where the upper end surface of the storage pocket 33 abuts on the lower surface of the head portion 47. When attaching the animal-prevention net fixture 13B to a medium-diameter support 3B having a diameter of 35 mm as shown in Fig. 18(b), the wedge member 37 is driven into the middle position of the wedge action portion 49 where the upper end surface of the storage pocket 33 abuts on the lower surface of the first step portion 55A provided above. When attaching the animal-prevention net fixture 13B to a large-diameter support 3C having a diameter of 38 mm as shown in Fig. 18(c), the wedge member 37 is driven into the lower position of the wedge action portion 49 where the upper end surface of the storage pocket 33 abuts on the lower surface of the second step portion 55B provided below.

[0060] The thus configured animal protection net fastener 13B according to the second embodiment of the present invention can also provide the same effects as those of the first embodiment described above.

[0061] [Other embodiments] The animal protection net fixture 13 of the present invention is not limited to the above-mentioned two embodiments, and various modifications can be made within the scope of the claims. For example, in the above-mentioned embodiment, the tubular portion 27 of the main body 35 in the animal protection net fixture 13 is formed of an integrally molded product with a closed periphery that is inserted into the support 3 from above, but the present invention is not limited to this, and the tubular portion 27 can also be formed of two parts that can be divided into two parts in the circumferential direction C. When such a divided tubular portion 27 is used, it becomes possible to attach the tubular portion 27 from the side of the support 3, and therefore it becomes possible to attach it to the support 3 in a state where the animal protection net 5 of the existing animal protection net facility 1 is stretched.

[0062] It is also possible to provide the animal protection net fastener 13 with a structure to prevent the wedge member 37 from slipping out. For example, a hole penetrating in the width direction is provided in the wedge action portion 49 of the storage pocket 33, and a hole penetrating in the width direction is also provided in the wedge member 37 at a position where the driving amount corresponds to the diameter of the post 3. Then, after the wedge member 37 has been driven in, a lock pin can be inserted into these two holes to prevent the wedge member 37 from slipping out.

[0063] Furthermore, in the above-described embodiment, a slope 45 is provided on the outer wall surface 43 side as a means for widening the gap B2 between the hook portion 31 below the shaft portion 29 and the outer wall surface 43 of the storage pocket 33, but it is also possible to provide a slope on the rear surface of the hook portion 31 at the opposing position, or to form a recess large enough to accommodate two wires 11. Also, in the above-described embodiment, a mode is adopted in which the shaft portion 29 rises from the outer wall surface 43 of the storage pocket 33, but the shaft portion 29 may rise from the outer wall surface of another part of the tubular portion 27.

[0064] Note that even if a component is included only in the description of each of the above-described embodiments, that component may be applied to other embodiments. [Explanation of symbols]

[0065] 1. Animal protection net 3 pillars 5. Animal protection net 7 Wall 9 Skirt Section 10. Rope 11 Wire 13 Fixing device for animal-proof net 15 Auxiliary fixtures 17 Cap 27 Cylindrical section 29 Shaft 31 Hook part 33 Storage Pocket 35 Main unit 37 Wedge member 41 Lingulae 43 Exterior wall surface 45 Slope 47 Head 49 Wedge action part 53 Contact surface 55 Step B gap

Claims

1. A fixing device for an animal-proof net, which has a wall section covering the tops and bottoms of a plurality of posts installed on the ground at a predetermined interval, and a skirt section covering the ground from the bottom of the posts to the outside, is used to hold down the connection between the wall section and the skirt section to the ground with a wire, A main body having a lower end portion driven into the ground and a wedge member for fixing the main body to the support pole, The body includes: a cylindrical portion that is inserted into the support and has a storage pocket formed by expanding a portion of the cylindrical portion in a radial direction; a shaft portion that rises from an outer wall surface of the cylindrical portion and around which the wire is wound; a hook portion provided at a tip of the shaft portion and configured to hold the wire wound around the shaft portion together with the outer wall surface, A fixing device for an animal-proof net, characterized in that the main body is fixed to the support by driving the wedge member into the storage pocket.

2. A gap formed between the hook portion and the outer wall surface is formed to a size large enough to accommodate one of the wires above the shaft portion, 2. The animal protection netting fixing device according to claim 1, characterized in that the lower part of the shaft portion is formed to be large enough to accommodate two of the wires.

3. 3. The fixing device for an animal-proof net according to claim 1 or 2, characterized in that the tubular portion has a protrusion at the lower end portion, the protrusion being a part of the circumference that protrudes downward.

4. The fixing device for an animal-proof net as described in claim 3, characterized in that the protrusions are two opposing tongue-like protrusions that are approximately inverted triangular in shape when viewed from the side, and are provided on the lower end portion at a position rotated 90 degrees left and right when the area where the storage pocket is provided is considered to be the front surface.

5. 3. The fixing device for an animal protection net according to claim 1 or 2, wherein the hook portion has a lower end portion projecting downward.

6. The wedge member has a flat head portion having a tip extending outward like an eave, and a wedge acting portion extending downward from a base portion of the head portion, A fixing device for an animal-proof net as described in claim 1 or 2, characterized in that the wedge acting portion has one or more step portions formed on the surface that abuts the storage pocket, which determine the amount of insertion corresponding to the diameter of the support.

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