JP2016111969A - Animal entry suppression fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an animal entry suppression fence, capable of maintaining a wild animal entry suppression effect, securing a work space easily when performing a mowing work and efficiently preventing a damage of a mesh, and also securing a passage space for a worker, at an optional part.SOLUTION: An animal entry suppression fence 1 comprises: plural poles 11 which are disposed with intervals, in a standing state, so as to divide a protection site and outside of the protection site; and entry suppression members attached between the poles 11. The entry suppression member comprise: wires 12a, 12b, 12c which are stretched with tension between adjacent poles 11 adjacent with an interval in a height direction; and a hexagonal wire mesh 13 attached to the lowermost wire 12c, and wire 12b using coil members 31, and extending from the lowermost wire 12c along a ground G of outside of the protection side. The lowermost wire 12c is stretched between the poles 11, at a position having height from a ground surface which is 100 mm or more and 300 mm or less.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique for an animal intrusion prevention fence that inhibits wild animals from invading railways, roads, farmland, forests, and the like.

  In recent years, wild animals such as deer and wild boars have increased in population, and there are railways, roads, farmlands, forests, etc. that have been established across the habitat (hereinafter referred to as “protected areas”). )) And wild animals invaded and collided with vehicles, and crops and afforestation damage frequently occurred.

  In order to deal with these problems, animal intrusion prevention fences have been installed around protected areas. The animal intrusion prevention fence is generally configured to include a support and a metal or resin net provided between the support, and has a function of preventing wild animals from entering a protected area. .

  By the way, when the surrounding area of the animal intrusion prevention fence is an unpaved ground, weeds propagate on the ground, and therefore weeding work is required periodically. However, when a mower is used when performing this weeding operation, the net of the animal intrusion prevention fence may interfere with the operation, and the rotary blade of the mower may contact the net and break it.

  In view of this, various animal intrusion prevention fences have been proposed in which the net does not interfere with the weeding operation and can effectively prevent damage to the net due to contact with the rotary blade.

  For example, Patent Literature 1 discloses an animal intrusion prevention fence that is configured by laying a net through ropes between a plurality of support posts using attachment brackets.

  In this animal intrusion prevention fence, loosen the rope installed on the edge of the net of the net, lift the net end of the net together with the rope to the top, and fix this rope to the upper part of the support with a mounting bracket Thus, it is possible to secure a working space below the animal intrusion prevention fence during the weeding operation, facilitating the weeding operation and preventing damage to the net during the weeding operation.

JP 2011-239712 A

  However, in the conventional animal intrusion prevention fence disclosed in Patent Document 1, it is necessary to loosen the rope when lifting the ground end of the net as described above. It will not be possible to demonstrate its function.

  Therefore, in the animal intrusion prevention fence of Patent Document 1, the rope is normally tensioned to prevent the invasion of wild animals, and during the weeding work, the rope is loosened and the net is lifted and fixed, and after the weeding work is finished, the rope is tensioned again. Need to be able to deter the invasion of wild animals.

  Repeating such relaxation and tension of the rope is very labor intensive for the operator, particularly when the animal intrusion prevention fence is formed with a long span exceeding several tens of meters or several hundreds of meters. Will be enormous.

  In addition, when the animal intrusion prevention fence is formed with a long span, it is very laborious to raise and lower the net and rope manually during weeding work in terms of the total extension and total weight of the net and rope. It will be a thing.

  Furthermore, when it is necessary for an operator to enter the protected area from the outside of the animal intrusion prevention fence, it is necessary to similarly lift the net and the rope to secure a space for the operator to pass. In this case as well, the conventional animal intrusion prevention fence requires the work of relaxing the rope and lifting the net and the rope over a wide range, and lowering the net and the rope after the entry is finished, and re-tensioning the rope. .

  Accordingly, the present invention has been devised in view of the above-described problems, and while maintaining the effect of preventing the invasion of wild animals, a work space can be easily secured during weeding work to effectively prevent damage to the net. In addition, an object of the present invention is to provide an animal intrusion prevention fence that can easily secure a working space for an operator at an arbitrary position.

  In order to solve the above-mentioned problems, the present inventor has a function of suppressing the invasion of wild animals, and if wild animals invade, emergency escape is easy and even if the fence is damaged during escape. Invented an animal intrusion deterrent fence that prevents damage from entering the protected area.

  The animal intrusion deterrent fence according to the first invention is an animal intrusion deterrent fence that deters the invasion of wild animals into the protected area by separating the protected area from the invasion of wild animals and the outside of the protected area. The animal intrusion prevention fence includes a plurality of support columns standing upright apart so as to separate the protected area and the outside of the protected area, and an intrusion suppression member attached between the support columns, The intrusion prevention member uses a plurality of wire rods that are stretched between adjacent struts spaced apart in the height direction, and an attachment member for the lowermost wire rod and at least one other wire rod. And a net that extends along the ground outside the protected area from the lowermost wire, and the lowermost wire is between the support posts at a height of 100 mm or more and 300 mm or less from the ground. That it is over And butterflies.

  The animal intrusion prevention fence according to the second invention is characterized in that, in the first invention, the attachment member is detachably attached to the wire.

  The animal intrusion prevention fence according to a third aspect of the present invention is the first or second aspect of the invention, wherein the mesh body has the same width as the distance between the adjacent struts and is attached one by one between the struts. Features.

  The animal intrusion prevention fence according to a fourth aspect of the present invention is the first or second aspect, wherein the plurality of nets having a width shorter than the distance between the adjacent struts overlap each other between the struts adjacent to each other. It is characterized by being attached together.

  In the fourth invention, the animal intrusion prevention fence according to the fifth invention is connected using a connecting member at the end where the plurality of nets attached with the ends overlapped with each other overlap. It is characterized by.

  The animal intrusion prevention fence according to a sixth aspect of the present invention is the fourth or fifth aspect, wherein the animal intrusion prevention fence is perpendicular to the extending direction of the animal intrusion prevention fence among the plurality of nets attached with the end portions thereof being overlapped. It is characterized in that at least one of the nets that do not overlap the pillars as viewed is attached at a position farther from the protected area than the other adjacent nets.

  The animal intrusion prevention fence according to a seventh aspect of the invention is any one of the first to sixth inventions, wherein the mesh body is a turtle shell metal mesh, and the twist is parallel to the extension direction of the animal intrusion prevention fence. It is arranged.

  According to the present invention having the above-described configuration, the emergency escape is easy when the wild animal invades while having the function of suppressing the invasion of the wild animal, and the roadside is broken even if the fence is damaged during the escape. It is possible to effectively prevent an object from entering.

It is a perspective view which shows the state in which the animal intrusion prevention fence which concerns on embodiment is installed. It is a perspective view which shows the animal intrusion prevention fence which concerns on embodiment. It is a side view which shows the animal intrusion prevention fence which concerns on embodiment. It is a perspective view which shows the support | pillar which comprises an animal intrusion prevention fence. FIG. 5 is an enlarged perspective view of an upper portion of the support column of FIG. It is a lower part expansion perspective view of the support | pillar of FIG. It is a perspective view which shows the support | pillar main body which comprises the support | pillar of FIG. It is a side view of the support | pillar main body of FIG. It is a perspective view which shows the support | pillar cover which comprises the support | pillar of FIG. It is a side view of the support | pillar cover of FIG. It is a partial expansion perspective view which shows the state by which a wire rod is spanned over a support | pillar main body. It is a partial expansion perspective view which shows the state which the support | pillar cover contact | abutted to the support | pillar main body over which the wire was spanned. It is a partial expansion perspective view which shows the state further fixed by the volt | bolt and the nut from the state of FIG. It is a front view which shows the aspect by which the edge part of a wire is fixed. It is a perspective view which shows the state which wound up the lower end part of the turtle shell metal mesh of an animal intrusion prevention fence. It is a front view which shows the state which wound up the lower end part of the turtle shell metal mesh of an animal intrusion prevention fence. It is a side view which shows the state which wound up the lower end part of the turtle shell metal mesh of an animal intrusion prevention fence. It is a perspective view which shows the state which rolled up the whole about the specific turtle shell metal net of the animal intrusion prevention fence, and formed the entrance / exit. It is a front view which shows the state which rolled up the whole about the specific turtle shell metal net of the animal intrusion prevention fence, and formed the entrance / exit. It is a side view which shows the state which rolled up the whole about the specific turtle shell metal net of the animal intrusion prevention fence, and formed the entrance / exit. It is a figure which shows the wild boar which is an example of the target animal of the animal intrusion prevention fence which concerns on this embodiment. It is a figure which shows the deer which is an example of the target animal of the animal intrusion prevention fence which concerns on this embodiment. It is the figure which showed the length of each location of the head of a deer of FIG. It is a figure explaining the invasion suppression effect of the deer to the protection ground by the animal intrusion prevention fence which concerns on embodiment, and the ease of the escape from a protection ground.

  Hereinafter, the animal intrusion prevention fence according to the embodiment of the present invention will be described in detail.

  FIG. 1 is a perspective view showing a state in which an animal intrusion prevention fence 1 according to the embodiment is installed.

  As shown in FIG. 1, the animal intrusion prevention fence 1 according to the embodiment includes a protected area (−X direction) provided with a railway, road, farmland, and forest land to be protected from the invasion of wild animals. It is used to separate a site other than the ground (+ X direction). In addition to the ± X direction described above, the extension direction of the animal intrusion prevention fence 1 is the ± Y direction (particularly, the left direction in FIG. 1 is the + Y direction for convenience), and the direction perpendicular to the ground G is the animal. The direction in which the intrusion prevention fence 1 is erected is defined as the + Z direction.

  Wild animals include, for example, sika deer, honshu deer, kyushu deer, sika deer, yakushi deer, kelp deer, tsuji deer, etc., which are classified as sika deer in the deer family. Moreover, in the bovine department, the Japanese serow etc. which are classified into the antelope genus etc., the various cows etc. which are classified into the bovine genus correspond. Furthermore, it corresponds to the omnivorous animals, such as Japanese wild boar and Ryukyu wild boar.

  For example, in the case of a railway or a road, the protected area is assumed to be a site having a track through which a train passes or a road through which a car passes. In the case of farmland and forest land, a site where crops are planted and afforested is assumed. For this reason, the protected area is a site that is linearly extended, such as a railroad track or a road for automobiles, with the animal intrusion prevention fence 1 as a boundary, or a site that has been cultivated with a field or afforested.

  The site other than the protected site is a site located on the opposite side of the protected site having the track, the road for automobiles, the field and the afforestation with the animal intrusion prevention fence 1 as a boundary. Sites other than protected areas assume, for example, wildlife habitats. However, the present invention is not limited to this, and the site outside the protected position includes all sites other than the protected site with the animal intrusion prevention fence 1 as a boundary.

  FIG. 2 is a perspective view showing the animal intrusion prevention fence 1 according to the embodiment. FIG. 3 is a side view showing the animal intrusion prevention fence 1 according to the embodiment.

  The animal intrusion prevention fence 1 includes struts 11 arranged at intervals, wires 12a, 12b, and 12c that are three wires spanning these struts 11, and wires 12b at the middle and lowermost portions. , 12c, a tortoise shell wire mesh 13, a first connecting coil 31 for connecting the tortoise shell wire mesh 13 to the wires 12b, 12c, and a second connecting coil 32 for connecting the adjacent tortoise shell wire meshes 13 to each other. It is comprised as a simple structural member. This animal intrusion prevention fence 1 is provided perpendicular to the ground G which is an inclined ground.

  In the animal intrusion prevention fence 1 described above, the height from the ground G to the wire 12b at the center is H1, the height to the wire 12c at the bottom is H2, and the height to the wire 12a at the top is H3. And The distance between the wire 12a and the wire 12b is H4.

  FIG. 4 is a perspective view showing the support 11 constituting the animal intrusion prevention fence 1 according to the embodiment. FIG. 5 is an enlarged perspective view of the upper portion of the column 11 of FIG. FIG. 6 is an enlarged perspective view of the lower part of the column 11 of FIG.

  The column 11 is mainly configured by a column main body 111 standing on the ground, a foundation pile 112 provided continuously below the column main body 111, and a column cover 113 attached and fixed to the column main body 111. Yes. When the column 11 is erected on the ground G, the column 11 is erected with the column cover 113 facing the outside of the protected area (+ X direction).

  FIG. 7 is a perspective view showing a column main body 111 constituting the column of FIG. FIG. 8 is a side view of the column main body 111 of FIG.

  The column main body 111 is a steel material having an L-shaped cross section that includes a bottom portion 111g, a web 111e and a flange 111f that rise vertically from the bottom portion 111g and are continuous with each other.

  The bottom 111g is a substantially square plate-like member, and a bolt fastening hole 111d is provided at the center. Bolts (not shown) provided on the top of the foundation pile 112 placed on the ground G are inserted into the bottom 111g, and nuts N2 are screwed from the bottom 111g side through washers (not shown). As a result, the bottom 111g and the foundation pile 112 are fixed, and the column 11 is erected on the ground G. The web 111e and the flange 111f are provided so as to be perpendicular to each other so as to rise vertically from the bottom 111g.

  The web 111e has a horizontal notch 111a that extends in the horizontal direction (-X direction) in a state where the animal intrusion prevention fence 1 is actually installed at a predetermined interval, and a continuous notch 111a. Thus, a vertical notch 111b provided in the vertical direction (−Z direction) is formed. The web 111e is provided with a hole 111c for fastening the bolt with the support cover 113.

  The opening diameters of the horizontal notch 111a and the vertical notch 111b are such that the wires 12a, 12b, and 12c can be inserted.

  The flange 111f has a long plate-like configuration provided perpendicular to the bottom 111g and the web 111e, and imparts mechanical strength to the column main body 111 together with the web 111e.

  FIG. 9 is a perspective view showing a column cover 113 constituting the column of FIG. FIG. 10 is a side view of the column cover 113 of FIG.

  The column cover 113 is a steel material having an L-shaped cross section that includes a long plate-like web 113e and a flange 113f that is continuously provided perpendicular to the web 113e.

  A plurality of rectangular notches 113a are provided in the web 113e with a predetermined interval. The width in the vertical direction (± Z direction) of the notches 113a is shorter than the length in the longitudinal direction of the vertical notches 111b formed in the web 111e of the column body 111, and the interval between the notches 113a is vertical. The interval is the same as the interval between the notches 111b.

  In addition, the web 113e is provided with a plurality of holes 113c used for bolt fastening with the column main body 111. The interval between the hole portions 113 c is the same as the interval between the hole portions 111 c provided in the web 111 e of the column main body 111.

  The flange 113f is a plate-like member that is narrower than the web 113e.

  Returning to FIG. 1 to FIG. 3, the turtle shell wire mesh 13 is a mesh body formed by twisting together wire rods, which are hexagonal meshes, and is formed using a vinyl-coated wire, a galvanized iron wire, a stainless steel wire, or the like. ing. The turtle shell wire net 13 has an advantage that it is easy to handle during construction, and even if a part of the steel wire breaks, the tear does not spread over the whole.

  The turtle shell metal mesh 13 is arranged in a horizontal direction (direction parallel to the ground G) between the strands of the wires. The tortoise shell wire mesh 13 can be in a state in which the tortoise shell wire mesh 13 is wound since the meshes can rotate within a predetermined range by using the twist as a rotation axis.

  The turtle shell metal mesh 13 is attached to the wires 12 b and 12 c using the first connecting coil 31. Further, the adjacent turtle shell metal meshes 13 are arranged so as to overlap one-mesh meshes at the ends in the width direction (± Y direction) of each other. The adjacent turtle shell metal mesh 13 is fixed to each other by the second coupling coil 32 in the mesh portion between the wires 12b and 12c and overlapped.

  The width of the tortoise shell wire mesh 13 and the number of sheets to be used can be appropriately adjusted within a range that can be bridged between two adjacent columns 11. In this embodiment, three turtle shell metal nets each having a width slightly larger than one-third of the distance between the support pillars 11 are overlapped between the support pillars 11 by one cell at each end. In this state, the two struts 11 adjacent to each other are spanned with no gap.

  The vertical length of the turtle shell metal mesh 13 is such that the turtle shell metal mesh 13 is further extended from the wire 12 c and spreads along the ground G in a state of being attached to the wires 12 b and 12 c.

  Moreover, it is preferable that the weight per one of the turtle shell metal mesh 13 is a weight which can be lifted by one worker. By setting it as such weight, the installation work of the animal intrusion prevention fence 1 can be performed easily and efficiently by a small number of people.

  In the present embodiment, the turtle shell wire net 13 is used. However, the present invention is not limited to this, and it is possible to carry and install the work even by one person such as a net formed of cotton or resin strings. Any material that is as light as possible and that can be wound upward (in the + Z direction) can be preferably used.

  Next, the installation method of the animal intrusion prevention fence 1 mentioned above is demonstrated.

  First, a plurality of foundation piles 112 are placed at predetermined intervals on the ground G where the animal intrusion prevention fence 1 is installed.

  Next, the column main body 111 is perpendicular to the ground so that a bolt protruding from the top of the foundation pile 112 placed on the ground G is inserted into the hole 111d formed in the bottom 111g of the column main body 111. Placed. At this time, the column main body 111 is placed such that the horizontal notch 111a faces the lower side of the ground G, that is, the side opposite to the protected ground side.

  Next, the foundation pile 112 and the column main body 111 are bolted in this state. This bolt fastening is performed by fitting a washer and a nut from the column main body 111 side to the bolt of the foundation pile 112 protruding from the hole 111g at the bottom of the column main body 111.

  Next, as shown in FIG. 11, the wires 12a, 12b, and 12c are inserted from the horizontal notches 111a of the pillar bodies 111 of the plurality of pillars 11 into the vertical notches 111b. FIG. 11 is a partially enlarged perspective view showing a state in which a wire is stretched around the column main body 111.

  In the present embodiment, the wires 12a, 12b, and 12c are respectively inserted into the three horizontal notches 111b of the column main body 111, and the wires 12a, 12b, and 12c are spanned between the plurality of continuous column main bodies 111. (See FIG. 2).

  At this time, the height of the wire 12c when viewed from the ground G is H2, the height of the wire 12b is H1, and the height of the wire 12a is H3. Further, the distance between the wires 12a-12b is H4.

  Next, the column cover 113 is attached to the column body 111. FIG. 12 is a partially enlarged perspective view showing a state in which the support cover 113 is in contact with the support body 111 over which the wire is stretched.

  The column cover 113 is attached by bringing the column cover 113 into contact with the lower side of the slope of the ground G so that the wires 12a, 12b, and 12c laid over the column bodies 111 are sandwiched between the column bodies 111. .

  The contact of the support cover 113 with the support body 111 is performed such that the wires 12a, 12b, and 12c are inserted into the notch 113a of the support cover 113. Thus, the wires 12a, 12b, and 12c are gripped by the vertical notch 111b of the column main body 111 and the notch 113a of the column cover 113.

  Further, in this state, the hole 111c of the column main body 111 and the hole 113c of the column cover 113 are opposed to each other, and the holes 111c and 113c are in communication with each other.

  Next, as shown in FIG. 13, the column main body 111 and the column cover 113 are bolted and fixed in this state. FIG. 13 is a partially enlarged perspective view showing a state in which the bolts B1, B2, washers W1, W2 and nuts N1, N2 are further fixed from the state of FIG.

  Bolts B1 and B2 are inserted into the two holes 111c formed on the upper and lower sides of the column main body 111 in communication with each other and the holes 113c of the column cover 113 positioned opposite to each other through washers W1 and W2, respectively. Is done. Then, the nuts N1 and N2 are screwed into the inserted bolts B1 and B2, respectively, and the column main body 111 and the column cover 113 are fixed.

  Next, the ends of the wires 12a, 12b, and 12c are fixed to the ground G. FIG. 14 is a front view showing an aspect in which the ends of the wires 12a, 12b, and 12c are fixed. The ends of the wires 12a, 12b, and 12c are fixed to a fixture 6 that is placed on the ground via the turnbuckle 5.

  A connecting portion 51 provided at one end of the turnbuckle 5 is fixed to the ends of the wires 12a, 12b, and 12c. The other end 52 of the turnbuckle 5 has a ring shape or a hook shape, and is fixed to an annular portion 62 provided on the upper surface of the fixture body 61 of the fixture 6 placed on the ground.

  In the present embodiment, the ends of the wires 12a, 12b, and 12c are fixed using a turnbuckle 5 as shown in FIG. 14, but the present invention is not limited to this, and turns of other shapes are used. The buckle 5 may be used, and fixing may be performed using any tension means other than the turn buckle 5.

  Prior to fixing the wires 12a, 12b, and 12c to the fixture 6 via the turnbuckle 5, the wires 12a, 12b, and 12c may be tensioned. In this case, for example, a fixing tool 6 is separately installed on the ground for pre-tensioning, and the tension of each wire 12a, 12b, 12c is used by using any fixing means such as a lever block (registered trademark) with the fixing tool 6 as a fulcrum. May be performed.

  Such pre-tensioning is a particularly effective work because when the length of the wires 12a, 12b, and 12c is several hundred meters, sufficient tension cannot be obtained only by the turnbuckle 5.

  Through the steps described above, the column main body 111 and the column cover 113 are fixed, and the column 11 is completed, and a state in which the wires 12a, 12b, and 12c are stretched over the column 11 is formed.

  Next, among the wires 12 a, 12 b, and 12 c laid between the columns 11, the turtle shell metal mesh 13 is attached to the wire 12 b in the middle stage and the wire 12 c in the lowermost part. In the present embodiment, the three turtle shell metal meshes 13 are attached in a state where the meshes at the ends of the adjacent turtle shell metal meshes 13 are overlapped one by one between the adjacent support columns 11.

  At this time, the turtle shell wire mesh 13 located at the center of the three turtle shell wire meshes 13 has its end overlapped with the other two turtle shell wire meshes 13 at a position farther from the protected area than the other turtle shell wire meshes 13. Installed in a state.

  The attachment of the turtle shell metal mesh 13 to the wires 12b and 12c is performed using a coil member 31 as an attachment member in the present embodiment. The coil member 31 is screwed into the meshes of the turtle shell metal mesh 13 and the wires 12b and 12c so as to be sewn, whereby the turtle shell metal mesh 13 is attached to the wires 12b and 12c.

  Further, also in the adjacent turtle shell metal meshes 13, the portions of the meshes that overlap each other and are located between the wires 12 b and 12 c are connected by the coil member 32 as a connecting member. The coil member 32 is screwed together so as to sew a portion of the mesh where the adjacent turtle shell metal meshes 13 overlap each other, thereby connecting the two adjacent turtle shell metal meshes 13 without gaps.

  At this time, the grid of the turtle shell metal mesh 13 is held by the elastic force that contracts up and down of the coil member 32, thereby preventing the coil member 32 from falling off.

  The adjacent turtle shell metal meshes 13 are connected with their ends overlapped in this way, so that the turtle shell metal meshes 13 due to the slackness of the wires 12b, 12c generated when the wires 12b, 12c are bridged over a long span. Generation | occurrence | production of a clearance gap can be prevented and it can prevent effectively that a wild animal enters a protected area from the said clearance gap.

  The coil members 31 and 32 described above have a simple configuration and can connect the turtle shell metal mesh 13 and the wires 12b and 12c or the turtle shell metal mesh 13 to each other by a simple mounting operation. Further, the coil members 31 and 32 can be easily removed.

  Thus, in the state where the turtle shell metal mesh 13 is attached to the wires 12b and 12c, the lower part of the turtle shell metal mesh 13 is hung on the ground G.

  The vertical notch 111b is configured to be temporarily placed without tilting the wires 12a, 12b, and 12c in a state where the column main body 111 is inclined and installed on the ground G.

  Therefore, when installing the animal intrusion prevention fence 1 over a long extension on the ground G, the column covers 113 are not attached to the ground G in advance without attaching the column covers 113 each time the columns 11 are installed. It is possible to install and temporarily place the wires 12a, 12b, 12c in the vertical notch 111b.

  Thereby, attachment of many support | pillar covers 113 can be performed continuously after that, and the construction property on a slope becomes more favorable.

  The vertical notch 111b only needs to be temporarily placed without the wires 12a, 12b, and 12c falling off in a state where the column main body 111 is tilted while standing on the ground G. Therefore, in the present embodiment, the notch is provided in the vertical direction to form the vertical notch 111b. However, in the present invention, the present invention is not limited to this, and the horizontal notch 111a continues in a direction other than the vertical direction. The aspect extended may be sufficient.

  Next, the effect which the animal intrusion prevention fence 1 which has the structure mentioned above show | plays is demonstrated. First, the effect of securing a working space easily at the time of weeding work and preventing damage to the turtle shell metal net 13 will be described.

  FIG. 15 is a perspective view showing a state where the lower end portion of the turtle shell wire net of the animal intrusion prevention fence is rolled up. FIG. 16: is a front view which shows the state which wound up the lower end part of the turtle shell metal net of an animal intrusion prevention fence. FIG. 17 is a side view showing a state where the lower end portion of the turtle shell metal mesh of the animal intrusion prevention fence is rolled up.

  As described above, the tortoiseshell wire mesh 13 of the animal intrusion prevention fence 1 can be rotated within a predetermined range around the twist as described above, so that it can be wound around the twist as a whole.

  Therefore, as shown in FIG. 15 to FIG. 17, the portion of the turtle shell metal mesh 13 positioned below the wire 12 c (−Z direction) can be wound up while the wire 12 c is tensioned, and below the turtle shell metal mesh 13. A space of height H2 can be secured. This height H2 is 100 mm or more and 300 mm or less.

  The end of the rolled up turtle shell metal mesh 13 is fixed to the upper mesh using the locking member 7. As the locking member 7, various members such as a clip and a carabiner can be used as long as they can be easily attached and detached. Thereby, the state which wound up the turtle shell metal-mesh 13 can be maintained.

  The height H2 of the space formed in the lower part of the tortoise shell wire mesh 13 is 100 mm or more, so that it is possible to effectively prevent the rotary blade of the mower from contacting the tortoise shell wire mesh 13 and damaging the tortoise shell wire mesh 13 during weeding work. Can do.

  Moreover, since the height H2 is 300 mm or less, it is possible to effectively prevent the invasion of the wild boar 2 ′ (see FIG. 21) as a wild animal. Details of the intrusion prevention effect of the wild boar 2 'will be described later with reference to FIG.

  Next, an effect that can secure a working space for an operator at an arbitrary portion of the animal intrusion prevention fence 1 will be described.

  FIG. 18 is a perspective view showing a state in which the entire turtle shell wire net 13 of the animal intrusion prevention fence 1 is rolled up and an entrance is formed. FIG. 19 is a front view showing a state in which the entire turtle shell wire net 13 of the animal intrusion prevention fence 1 is rolled up and an entrance is formed. FIG. 20 is a side view showing a state in which the entire turtle shell wire net 13 of the animal intrusion prevention fence 1 is rolled up and an entrance is formed.

  As shown in FIGS. 18 to 20, the turtle shell metal mesh 13 of the animal intrusion prevention fence 1 is further wound up than the state shown in FIGS. 15 to 17 and is fixed at the height H <b> 1.

  As described above, among the three tortoise shell wire meshes 13 that are attached with the end portions overlapped between the columns 11, the tortoise shell wire mesh 13 in the center is more protected than the other two tortoise wire meshes. Located outside. Therefore, as shown in FIGS. 18 to 20, only the turtle shell metal mesh 13 at the center can be wound up toward the outside of the protected ground while maintaining the tension state of the wires 12 a, 12 b, and 12 c.

  At this time, the coil member 31 fixing the turtle shell metal mesh 13 to be wound up to the wire 12c is removed, but this removal can be easily performed only by rotating the coil member 31. Further, the coil member 32 used for connecting the turtle shell metal meshes 13 is also easily detached from the turtle shell metal mesh 13 only by rotating.

  Then, in a state where the turtle shell metal mesh 13 at the center is wound up to the height H1, the end portion is fixed to the wire 12a using the locking member 7, so that the wound state is maintained. Since the height H1 is a height that allows the operator to pass through, the portion where the turtle shell metal mesh 13 is wound can be used as a working space for the operator.

  When the work by the worker is finished and the animal intrusion prevention fence 1 is returned to the initial state shown in FIG. 1, the locking member 7 is first removed, and the turtle shell metal net 13 is lowered to the ground G.

  Then, the lowered turtle shell metal mesh 13 is connected and fixed to the wire 12 c using the coil member 31, and the adjacent turtle shell metal mesh 13 is connected again by the coil member 32. At this time, the grid of the turtle shell metal mesh 13 is held by the elastic force contracting up and down of the coil member 32 so that the coil member 32 does not fall off from the turtle shell metal mesh 13.

  As described above, according to the animal intrusion prevention fence 1 according to the present invention, it is possible to easily and quickly form a worker's working space while maintaining the tension state of the wires 12a, 12b, and 12c, and easily after the work is finished. And it can return to the initial state quickly.

  Next, the invasion suppression effect of wild animals will be described. First, the invasion suppression effect of the wild boar 2 'as a wild animal will be described.

  FIG. 21 is a diagram showing a wild boar 2 ′ that is an example of a target animal of the animal intrusion prevention fence 1 according to the present embodiment.

  The wild boar 2 'is a wild animal having a strong rushing force. Therefore, even when trying to enter the protected area through the animal intrusion prevention fence 1 from the outside of the protected area, the vehicle may go straight and collide with the animal intrusion prevention fence 1 and attempt to pass through it.

  Therefore, if there is an obstacle at a position lower than the height 2e, which is the shoulder height of the wild boar 2 'and also the position of the nose, the wild boar 2' is prevented from moving straight. The shoulder height 2e of the wild boar 2 'is about 600 mm to 900 mm in the case of Japanese wild boar widely distributed in Japan.

  Therefore, in the animal intrusion prevention fence 1 according to the present embodiment, the height H2 of the wire 12c that is tensioned at the lowest level is 300 mm or less, which is half or less of a boar with a shoulder height of 600 mm. In this way, the height H2 of the wire 12c is set to 300 mm or less, and the wire 12c is always in a tensioned state regardless of whether the tortoise shell wire 13 is wound up, so that a sufficient reaction force is obtained and the wild boar 2 ′ moves straight. The wild boar 2 'can be effectively prevented from entering the protected area.

  Next, the invasion suppression effect of the deer 2 as a wild animal will be described. FIG. 22 is a diagram illustrating a deer that is an example of a target animal of the animal intrusion prevention fence according to the present embodiment. FIG. 23 is a diagram showing the length of each part of the head of the deer in FIG.

  22 and 23, the deer 2 has a shoulder height of 2a, a head height of 2b, a head length of 2c, and a head width of 2d.

  As shown in FIGS. 2, 3 and 24, the animal intrusion prevention fence 1 has a height H3 from the ground G to the uppermost wire 12a, and the second step with the wire 12a. The distance to the wire 12b is H4.

  By nature, the deer 2 that eats undergrass detours, straddles, or tries to dive when there is an obstacle such as a fence in the direction of travel. Even if the fence has a height that can be jumped over by jumping, if there is no factor that induces jumping, such as feeding at the tip of the fence or being driven later, the jump is hardly performed.

  And when there is no cause of jumping and it is not possible to straddle or dive, the deer 2 turns back or moves along the fence.

  Therefore, when the animal intrusion prevention fence 1 according to the present embodiment is installed along a road or a railroad, the wire 12a is provided such that the height from the ground is H3 higher than the shoulder height 2a of the deer 2. . Therefore, the deer 2 cannot straddle the wire 12a.

  Thus, according to the animal intrusion prevention fence 1 which concerns on this embodiment, it can suppress effectively that the deer 2 straddles this and invades protection ground.

  In addition, this invasion deterrent effect can be further enhanced by the animal invasion deterrent fence 1 being erected on the ground G.

  FIG. 24 is a diagram for explaining the deer invasion deterrent effect to the protected area by the animal intrusion deterring fence 1 according to the embodiment and the ease of escape from the protected area.

  As shown in FIG. 24, the deer 2 below the ground G as viewed from the animal intrusion prevention fence 1, that is, outside the protected area, jumps over the wire 12 a of the animal intrusion prevention fence 1, taking into account the slope inclination. He must jump to height H5.

  This H5 is higher than the height H3 that is normally set higher than the height at which the deer 2 can jump, that is, the height from the ground G to the wire 12a. Therefore, it is possible to effectively prevent the deer 2 from jumping over the animal intrusion prevention fence 1 from below the ground G and entering the protected area.

  Thus, in the animal intrusion prevention fence 1 which concerns on this embodiment, the height of the animal intrusion prevention fence 1 can be kept lower than the conventional fence, and the cost of manufacture and installation and the labor at the time of work are reduced. be able to.

  Furthermore, in the animal intrusion prevention fence 1 according to the present embodiment, as a countermeasure against the deer 2 stagnation, the turtle shell metal mesh 13 hangs down with a sufficient length with respect to the ground G, and the turtle shell metal mesh 13 is fixed to the lowermost wire 12c. Has been.

  When deer 2 sinks into an obstacle, first lower the neck and let the tip of the nose sink under the obstacle, and lift the neck in that state to raise the obstacle and make the sink under the obstacle. Create possible space. And the deer 2 lowers the posture in that state, and sinks into the obstacle by sinking into this space in order from the tip of the nose to the head and neck.

  However, in the animal intrusion prevention fence 1 according to the present embodiment, even if the deer 2 sinks the nose into the tortoise shell wire net 13 that hangs down on the ground and lifts the neck to turn up the end of the tortoise shell wire mesh 13, it cannot be turned up completely. It is configured to hang down on the ground G for a sufficiently long length.

  Specifically, the tortoise shell wire net 13 is sufficiently longer than the length of the deer 2 that is turned up when the nose tip is inserted, that is, the sum of the head height 2b and the head length 2c of the deer 2. It is configured to hang on the ground G for a long time.

  Therefore, even when the deer 2 makes the tip of the nose sink under the turtle shell metal net 13, it cannot turn up everything and does not attempt to make the head or neck sink further.

  Further, as described above, the turtle shell metal mesh 13 is fixed to the wire 12c at a position close to the ground G. For this reason, even if the deer 2 sinks under the turtle shell metal net 13 that hangs down on the ground G, it cannot enter the protected area further, and the deer 2 can be more effectively prevented from entering.

  Thus, in the animal intrusion prevention fence 1 in the present embodiment, the deer 2 can be effectively prevented from entering and the entry into the protected area can be suppressed.

  Next, the effect of promoting escape of the deer 2 from the protected area will be described.

  As described above, even if the deer 2 is a fence with a height that can be jumped over by jumping, there is no factor that induces jumping such as feeding at the tip of the fence or being driven later. , Almost no jump.

  And wild animals such as deer that have invaded the protected area from the break of the animal intrusion prevention fence 1 due to crossing sections etc. provided on railways and roads are surprised by the approach of vehicles etc. Try to get over.

  At this time, the jumpable height of the deer 2 is up to about three times the shoulder height 2a, but the height that can be easily exceeded is up to about twice the shoulder height 2a. Therefore, in the animal intrusion prevention fence 1 according to the present embodiment, the height H3 from the ground to the uppermost wire 12a is set to be not more than twice the shoulder height 2a of the deer 2.

  Thereby, the deer 2 can easily jump over the animal intrusion prevention fence 1 when the vehicle approaches, and escape from the protected area.

  Further, as shown in FIG. 24, when the deer 2 that is in the state of entering the protection ground above the ground G as viewed from the animal intrusion prevention fence 1 jumps over the wire 12a of the animal intrusion prevention fence 1, the height that should jump The height is H6.

  This height H6 is lower than H3, which is a height at which the deer 2 can easily jump. This makes it easier for the deer 2 to jump over the animal intrusion prevention fence 1 and escape from the protected area.

  Further, when the deer 2 jumps over the animal intrusion prevention fence 1, it is important that the deer 2 has visibility so that the other side of the animal intrusion prevention fence 1 can be seen. It is known that the deer 2 has good visibility in the jump direction and is easy to jump when the landing point can be visually recognized.

  For animals with some intelligence, such as humans, jumping over obstacles without being able to see the other side is self-control because it causes fear.

  Therefore, in the animal intrusion prevention fence 1 according to the present embodiment, a high-visibility space is secured in the upper part of the animal intrusion prevention fence 1 by adopting a configuration in which the wires 12a and 12b are stretched over the upper part. The situation where it is easy to jump is realized.

  This visibility depends on the size of the head of the deer 2. Specifically, the head of the deer 2 has a vertical length of 2b and a horizontal width of 2d in the front view shown in FIG. 23. The deer 2 has the vertical and horizontal sizes based on the vertical and horizontal sizes of the head. When there is a space larger than the size of the fence, it recognizes the other side of the fence and becomes conscious of jumping to the other side of the fence.

  Therefore, the distance H4 between the wires 12a-12b is ensured to be longer than the vertical length 2b of the head of the deer 2. The distance between the columns 11 is also sufficiently wider than the lateral width 2d of the head of the deer 2.

  In this way, a space larger than the size of the head of the deer 2 can be secured in the upper part of the animal intrusion prevention fence 1, and the deer 2 escapes from the protected area by making it easier for the deer 2 to recognize the other side of the fence. It is possible to facilitate the jumping of the animal intrusion prevention fence 1 when performing.

  Specifically, when the deer 2 is a Japanese deer, both the vertical length 2b and the horizontal width 2d of the head are about 20 cm, the H4 of the animal intrusion prevention fence 1 is 20 cm or more, and the distance between the columns 11 Is 20 cm or more, that is, if a space of 20 cm square or more can be secured above the animal intrusion prevention fence 1, the deer 2 can easily jump.

  Furthermore, even if the wild animal which jumped at the time of escape of the deer 2 collides with the animal intrusion prevention fence 1 and is damaged in the animal intrusion prevention fence 1 according to the present embodiment, a damaged component enters the protected ground side. There is also an effect of effectively preventing this.

  When the deer 2 jumps from the protected area side and collides with the animal intrusion prevention fence 1 and the animal intrusion prevention fence 1 bends, the direction of the bending is toward the outside of the protected area. No. 1 bends and does not hinder the passage of vehicles and the like.

  Moreover, the animal intrusion prevention fence 1 may be damaged by the collision of the deer 2 and the components may fall off. However, in the animal intrusion prevention fence 1 according to the present embodiment, since the dropout direction of each component is limited to the outside of the protected area (+ X direction), the parts dropped off to the protected ground side (−X direction) enter, There is no hindrance to traffic of vehicles.

  Specifically, since the column main body 111 of the animal intrusion prevention fence 1 is fixed to the ground G by the foundation pile 112, when the deer 2 jumps to the outside of the protected area and collides, this jump direction, that is, It curves toward the outside of the protected area and does not curve toward the protected area.

  In addition, since the column cover 113 is bolted to the column main body 111, even if the column main body 111 is bent to the outside of the protective ground together with the column main body 111 or the bolt fastening part is broken and falls off, the deer 2 moves in the jumping direction. It just drops out.

  In addition, since the wires 12a, 12b, and 12c that are spanned between the struts 11 are stretched across two or more struts 11, even when they are bent or cut by the collision of wild animals, Since the support | pillar 11 becomes an obstruction, it does not curve or bend to the protection ground side.

  According to the animal intrusion prevention fence 1 according to the present embodiment described above, while maintaining the effect of preventing the invasion of wild animals, it is possible to easily secure a work space at the time of weeding work and effectively prevent damage to the net. Therefore, the working space for the operator can be easily secured.

  Moreover, even if a wild animal invades a protected area while having a function of preventing the invasion of a wild animal into a protected area, emergency escape is easy and even if the animal intrusion prevention fence 1 is damaged during the escape. In addition, it is possible to effectively prevent damage from entering the protected ground.

  In the above-described embodiment, the three wires 12a, 12b, and 12c are stretched between the support columns 11. However, the present invention is not limited to this, and the number of wires is not limited to the type of wild animal or the invasion of animals. It can adjust suitably according to the installation situation of the suppression fence 1. FIG.

  Moreover, although the invasion deterrent effect was demonstrated by spanning a wire between the support | pillars 11, in the present invention, not only this but the material which can ensure the invasion deterrent effect of wild animals and the visibility at the time of jumping It does not have to be a wire, and a plate-like member, a steel wire, or the like can be suitably used. Moreover, about these materials, resin, wood, natural fiber, etc. other than steel can be used suitably.

  Further, the turtle shell metal net 13 that prevents the intrusion of wild animals can be suitably used as long as it has the effect of preventing the intrusion and can be rolled up, and a net made of a sheet or fiber can also be used. Moreover, about these materials, resin, natural fiber, etc. other than steel can be used suitably.

  In the embodiment described above, the number of turtle shell metal meshes 13 attached between two adjacent struts 11 is three. However, the present invention is not limited to this, and one, two, or four or more are used. May be.

  When the number of the tortoise shell wire mesh 13 attached between the support posts 11 is one, the width of the tortoise shell wire mesh 13 is set so that a gap is not generated between the support rod 11 and the tortoise shell wire mesh 13. The width needs to be the same as the distance between two adjacent columns 11 excluding the overlap.

  In addition, even when there are two or four or more turtle shell metal meshes 13 attached between the support posts 11, the turtle shell metal meshes 13 are arranged with their end portions overlapped, and at least one is the same as in the above-described embodiment. The tortoise shell wire mesh 13 is provided on the outer side of the protected ground than the other tortoise shell wire meshes 13 and needs to be in a state where it can be rolled up to the outer side of the protected ground.

  Moreover, even if it is any number of the turtle shell metal mesh 13 attached between the support | pillars 11, when the one turtle shell metal mesh 13 is wound up to height H1, it needs to have the width | variety which an operator can pass.

  Moreover, when attaching the some turtle shell metal mesh 13 between the adjacent support | pillars 11, all the turtle shell metal mesh 13 does not need to have the same width | variety, and may have a respectively different width | variety. In this case as well, the plurality of turtle shell metal meshes 13 are attached with their ends overlapped, and at least one turtle shell metal mesh 13 is provided outside the protected area more than the other turtle shell metal mesh 13 and is wound up to a height H1. Need to be possible. Moreover, the width | variety of the tortoise shell metal mesh 13 which can be wound up needs to have a width | variety which an operator can pass when this is wound up.

  Further, in the above-described embodiment, the overlapping of the end portions between the adjacent turtle shell metal nets 13 is performed by overlapping one square, but in the present invention, not limited to this, two or more squares are superimposed. It may be done.

  In the above-described embodiment, the coil members 31 and 32 are used to attach the turtle shell metal mesh 13 to the wires 12b and 12c and to connect the turtle shell metal mesh 13 to each other. It can be attached using any attachment member such as a carabiner.

  In the above-described embodiment, the plurality of support columns 11 are erected with the same interval. However, in the present invention, the present invention is not limited to this. Good. In this case, the number of turtle shell metal meshes 13 attached between the columns 11 may be adjusted as appropriate.

  Moreover, it is not necessary to provide the tortoise shell wire mesh 13 which can be wound up outside the protected ground in all between the two adjacent struts 11, and a mode in which it is provided between arbitrary struts 11 may be employed.

  With the animal intrusion deterrent fence 1 according to any of the above-described modifications, while maintaining the invasion deterring effect of wild animals, a working space is easily secured at the time of weeding work, and damage to the net is effectively prevented. The working space for the operator can be easily secured at the location.

DESCRIPTION OF SYMBOLS 1 Animal intrusion prevention fence 2 Deer 2 'Wild boar 7 Locking member 11 Support | pillar 12a, 12b, 12c Wire 13 Tortoise shell metal mesh 31, 32 Coil member 111 Support | pillar body 112 Foundation pile 113 Support | pillar cover 111a Horizontal notch 111b Vertical notch 111c Hole 111d hole 111e web 111f flange 111g bottom 113a notch 113c hole 113e web 113f flange G slope

Claims (7)

An animal intrusion deterrent fence that deters entry of wild animals into the protected area across a protected area that is protected from the invasion of wild animals and the outside of the protected area,
The animal intrusion prevention fence includes a plurality of support columns standing upright apart from each other so as to separate the protection site and the outside of the protection site, and an intrusion suppression member attached between the support columns,
The intrusion prevention member uses a plurality of wire rods that are stretched between adjacent struts spaced apart in the height direction, and an attachment member for the lowermost wire rod and at least one other wire rod. A net that is attached and extends along the ground outside the protected area from the wire rod at the lowest level,
The animal intrusion prevention fence, wherein the lowermost wire is bridged between the support columns at a height of 100 mm or more and 300 mm or less from the ground.   The animal intrusion prevention fence according to claim 1, wherein the attachment member is detachably attached to the wire.   The animal intrusion prevention fence according to claim 1 or 2, wherein the mesh body has the same width as the distance between adjacent struts, and is attached one by one between the struts.   3. The plurality of nets having a width shorter than the distance between the adjacent struts are attached between the adjacent struts with their end portions overlapped with each other. Animal intrusion deterrent fence.   The animal intrusion prevention fence according to claim 4, wherein a plurality of nets attached in a state where the end portions are overlapped with each other are connected to each other at an end portion where the end portions overlap with each other using a connecting member.   Among the plurality of nets attached with their ends overlapped, at least one of the nets that do not overlap the column as viewed from the direction perpendicular to the extension direction of the animal intrusion prevention fence is adjacent to the other The animal intrusion prevention fence according to claim 4 or 5, wherein the fence is attached at a position farther from the protected area than the net body.   The animal intrusion deterrent according to any one of claims 1 to 6, wherein the net body is a turtle shell metal net, and a twist is arranged so as to be parallel to an extension direction of the animal intrusion deterring fence. fence.

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