JP5865335B2 - Anti-corrosion device spacer, anti-corrosion device and anti-corrosion method - Google Patents

Description

  The present invention relates to a spacer for a food damage prevention apparatus, a food damage prevention apparatus, and a food damage prevention construction method, and more particularly to a spacer for a food damage prevention apparatus, a food damage prevention apparatus, and a food damage prevention construction method for preventing food damage caused by herbivores such as deer. . In addition, the herbivore here refers not only to the general herbivore, but also to all animals that feed on plants and cause damage.

  Protecting vegetation such as slopes from herbivores such as deer is important in terms of suppressing erosion of slopes, and various methods have been studied so far. As one method therefor, Patent Document 1 discloses a technique that enables a plant to be protected from damage caused by herbivores by arranging a net-like body in a state of floating from the ground of a protection area.

  According to the above technique, the roots and stems of vegetation plants located in the plant growth space protected by the mesh body can be reliably protected, and the installation is easy, and maintenance after installation is not required. preferable.

Japanese Patent No. 3793524

  By the way, there are various possible configurations for the spacers interposed in order to secure a plant growth space between the mesh body and the ground. Sufficient ground contact area was required to prevent penetration. In addition, there is a problem that the spacers are inevitably bulky when transported to the site.

  Thus, it is conceivable to form a spacer that is suitable for installation on the ground and that is stacked with synthetic resin or the like. However, since synthetic resins do not naturally decay, there is a concern about the impact on the environment. On the other hand, when the spacer is formed using an iron wire, it is possible to carry the iron wire by stacking it by devising the shape, but because deformation and sinking occur, There was a problem that it was difficult to secure a plant growth space.

  The present invention has been made in consideration of the above-mentioned matters, and its purpose is to stably maintain a plant growth space for a long period of time, to reduce subsidence to the ground, and to reduce transportation costs. An object of the present invention is to provide a damage prevention device spacer, a damage prevention device, and a damage prevention method.

In order to achieve the above-mentioned object, the first invention is a spacer that is interposed between the net and the ground arranged in a state of being floated from the ground of the protection area, and secures a plant growth space between the net and the ground. there, a first timber through hole anchor penetrates is provided, wherein the anchor have a second timber through holes provided to penetrate said through hole provided in the first timber, The through hole provided in the second wood extends in a direction perpendicular to the longitudinal direction of the first wood, and extends in a direction perpendicular to the longitudinal direction of the second wood. The second wood is placed above the first wood so that the longitudinal direction of the second wood is orthogonal to each other, and the through hole of the first wood and the through hole of the second wood are positioned in a straight line. The upper surface of the first wood and / or A step portion is formed at a portion to be a joint portion on a lower surface of the second wood, and the step portion is formed by a concave portion having a shape cut in a circle around the through hole, and Provided is a spacer for an anti-corrosion device, wherein one wood and the second wood are formed so as to be joined in a fitted state (claim 1).

  More preferably, the first wood and the second wood are formed by cutting a raw wood into a column having a square cross section, whereby the flat surface comes into contact with the ground, improving the sense of stability, Becomes easy. Note that the cross-sectional shape of the wood may be a quadrangle that is not a square, and further, stability is improved when it is arranged if at least the surface in contact with the ground or the net is cut. However, particularly in the case of small-diameter timber, the log may be used as it is to reduce cutting labor.

  Furthermore, stability is further improved by arranging a plurality of first timbers substantially in parallel and supporting the second timber at a plurality of locations, and a net-like body by arranging a plurality of second timbers in parallel. Furthermore, the stability of the joint part is further improved. In this case, the wood is sufficiently stable even if a cutting surface is not provided on the wood, so that even a small-diameter wood can be used as a spacer.

  Wood is preferable because it does not deform or sink for a long period of time as compared with iron wire, and can maintain an effective height, and eventually decomposes completely due to corrosion. Furthermore, the spacer formed by the combination of the first wood and the second wood is unique in appearance, and the anti-corrosion device can have a design. In addition, although not shown, it is also possible to stack the third wood on the second wood in the same manner in three steps, and also in the same manner to put the fourth wood in a four-step manner. The height of the entire spacer can be ensured even if is used.

  Plants that grow in the plant growth space secured by the spacer are protected by a net-like body, so that the plant in the plant growth space is not eaten up by herbivores after the construction of the food damage prevention device, and functions to protect the ground. Can keep. On the other hand, herbivores can eat plants that grow beyond the plant growth space, thus protecting the ecosystem.

  In the spacer, the first wood and / or the second wood is preferably a thinning material coated or impregnated with a wood preservative or a chemical containing capsaicin, and the wood preservative (for example, creosote) is the first wood. Since the corrosion of the second wood can be suppressed, a plant growth space can be secured over a long period of time. Moreover, wood preservatives and capsaicin can be expected to repel herbivores. Therefore, by applying or impregnating the wood preservative or capsaicin to the first wood and the second wood, herbivores can be kept away. The application includes not only applying the chemical to the first wood and the second wood using a brush, but also spraying or spraying. Impregnation means, for example, the first wood and the second wood for the chemical. It means to immerse the drug by immersing wood.

  Thinned wood can be used as the first wood and / or the second wood. And it is preferable that the thinned material is locally generated, and thereby effective use of the thinned material can be achieved, and the cost for transporting the first wood and the second wood can be minimized. In addition, since the thinned wood generated locally returns to the local soil over the long term, changes in the local environment can be suppressed as much as possible.

  Moreover, it is preferable that the longitudinal direction of said 1st wood and 2nd wood is arrange | positioned in the state which cross | intersected with the contour line of the ground.

  That is, by arranging the longitudinal direction of the first wood and the second wood in a state intersecting with the contour lines of the ground, the first wood and the second wood can be stably placed on the ground in the vertical direction, Therefore, it is harder to lift and stability can be improved.

An anchor penetrates both the first wood and the second wood in the joined state of the joint, and a step formed so as to be fitted to the joint of the first wood and / or the second wood in the joined state. When the through hole is provided (Claim 1 ), the fitting body of the first wood and the second wood can be stabilized. The stepped portion is preferably a step with a height of, for example, several millimeters, in which the joining portion is fitted when the first wood and the second wood are joined, and the fitting state is at least on one side of the joining portion. Although it is formed so as to be stabilized, the joint portion can be further stabilized by being formed on both sides of the fitting portion. In addition, the step portion may be formed on either the first wood or the second wood, but is formed on both the first wood and the second wood, and the mating woods are fitted to each other. It is preferable to hold it.

  The through-hole is provided in the center of the first wood, so that it can be well-balanced and beautifully formed. However, when the ground is inclined, the through-hole is shifted to the upper side of the inclination. By providing, stability after installation is improved.

  The stepped portion is preferably formed by a recess formed by cutting the periphery of the through hole into a circle with a diameter of about 1.4 times the width of the wood.

  That is, since the cutting recess can be easily formed with a single tool, the step can be easily cut. For example, by using a drilling drill or a step drill, both the through hole and the step portion can be formed by a single cutting, and the manufacturing cost can be reduced accordingly. In addition, there is an advantage that it is not bulky when transporting wood. In addition, it is preferable that a step part is cut circularly centering on a through-hole, and, thereby, a 1st wood and a 2nd wood can be made to make it orthogonally fit correctly.

  Or it is preferable that the said step part is formed by any of the sticking of protrusions, such as a staple needle or a pile, and sticking of protrusions, such as a rib or a plate-shaped object.

  That is, when the step portion is formed by striking or pasting a projection, it is not necessary to cut wood, so that the height of the spacer can be increased.

The longitudinal direction of the first wood may be arranged in a state intersecting with the contour lines of the ground, and the longitudinal direction of the second wood may be arranged in a state parallel to the contour lines of the ground (claim 4 ).

  By arranging the longitudinal direction of the first timber in a state intersecting with the contour lines of the ground, the first timber can be stably placed on the ground in the vertical direction, so that it is difficult to lift and the stability is improved. it can. On the other hand, since the second wood is arranged in a state parallel to the contour lines of the ground by intersecting with the first wood, it is possible to effectively prevent the horizontal displacement of the mesh body, and adjacent portions via the mesh body The connection becomes stronger, resulting in a more stable structure.

In the second invention, the longitudinal direction of the first wood and the longitudinal direction of the second wood are orthogonal, and the through hole of the first wood and the through hole of the second wood are positioned on a straight line. The second wood is overlapped on the upper side of the first wood, and both are fitted by a step formed on the joint, and the spacer is lifted from the ground of the protection area via the spacer. a mesh member arranged in state, to provide a feeding damage prevention device, characterized in that it comprises a anchor for fixing the mesh body to the spacer (claim 2).

  The mesh body is a woven wire mesh made by weaving a plurality of wires vertically and horizontally, a net fence entangled with spirally bent wires, a welded wire mesh welded vertically and horizontally, and staggered cuts. Various configurations are possible, such as expanded metal formed by stretching a stretched steel plate, punch metal formed by punching through holes in a metal plate, but with a strength that can be bent somewhat depending on the weight of the herbivore in the installed state It is preferable that

  Further, the anchor has a strength capable of suppressing the lifting of the mesh body over a long period of time. For example, the anchor is provided with a bent portion bent in a substantially L shape at the head, thereby easily fixing the mesh body. There are advantages. Moreover, you may provide the holding | maintenance part which pinches | interposes and holds a mesh body in the head of an anchor.

The third invention is a corrosion prevention method using the spacer, wherein the first wood and the second wood are arranged in this order on the ground, and at this time, the longitudinal direction of the first wood and the second wood The second wood is overlaid on the upper side of the first wood so that the longitudinal direction of the wood is orthogonal and the through hole of the first wood and the through hole of the second wood are positioned in a straight line. Then, the anchors are driven into the through holes of each of the first and second timbers so that both are fitted by the step formed in the joint and the first and second timbers are fixed to the ground . In addition, the present invention provides a food damage prevention method characterized in that a net-like body is installed in a state where a plant growth space is secured between the ground and the net-like body by mounting and fixing the net-like body on the second wood (claim 3). ).

In the invention which concerns on Claim 1, the spacer for ensuring the plant growth space of the food damage prevention apparatus can be easily formed between the ground and the net-like body. In other words, just by stacking wood in two steps and making it a spacer, you can earn height with less material compared to using a single piece of wood at the same height, and it is possible to use small diameter trees as much Become. In addition, the spacers made of wood are easy to adapt to the scene in the field and have a unique design and appearance compared to artificial objects such as metal, plastic and mortar. Moreover, since the material can be procured locally by forming the spacer using the thinned wood on the site, the cost for transportation can be reduced.

In the second invention and the third invention according to claim 2, if the growing point of vegetation plants to protect by positioning the plant growth in the space formed below the net-like member, deer against vegetation plants etc. Can surely prevent damage and trolling by herbivores. If the damage prevention device after construction has a strength (shape retention) that does not cause plastic deformation even if people or deer are placed on the device, the damage prevention device prevents the movement of people and deers. As it is not possible to improve the workability, the vegetation plant allows the deer to eat the part (stems and leaves) that extend beyond the reticulate body, and actively coexists with the deer. Measures that can lead to a fundamental solution to food damage by eliminating deer etc. moving from the area where the food damage prevention equipment is installed to other areas and causing new food damage in that area. It is also possible to take.

It is explanatory drawing which shows roughly the spacer of the damage prevention apparatus which concerns on one embodiment of this invention, a damage prevention apparatus, and a damage prevention construction method. It is a cross-sectional view of the food damage prevention apparatus. It is a disassembled perspective view of the spacer of the said damage prevention apparatus, and a damage prevention apparatus. It is a figure explaining the installation state of the spacer of the corrosion prevention apparatus shown in FIG. It is explanatory drawing which shows roughly the structure of the modification of the said spacer. It is a figure explaining the installation state of the spacer shown in FIG. It is explanatory drawing which shows schematically the structure of another modification of the said spacer. It is a figure explaining the installation state of the spacer shown in FIG. It is a figure which shows the structure of the other modification of the said spacer. It is a figure which shows the structure of the further modification of the said spacer.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the food damage prevention apparatus according to the present embodiment is installed on, for example, a flat area or a slope (slope) in a mountainous area to prevent food damage caused by herbivores. In order to form the plant growth space S between the net 1 and the ground, the net body 1 disposed so as to cover the ground G and the net 1 are separated from the ground. Spacer 2 and an anchor 3 for fixing the spacer 2 to the ground.

  Although the net-like body 1 is somewhat bent at the time of installation, it is preferable that the net-like body 1 has a strength higher than that of a herbivorous animal such as a person or a deer. It is a woven wire net formed by weaving a plurality of wires 1A and 1B arranged in the. The intersection of the wires 1A and 1B is preferably woven so as to be fixed by another wire to prevent displacement, but is simply woven by changing the vertical position of the vertical and horizontal wires 1A and 1B. May be.

  The net-like body 1 may be a resin-coated one, a net fence formed by intertwining wires bent in a spiral shape, a welded wire net obtained by welding vertical and horizontal wires, and a staggered pattern. Various configurations are conceivable, such as an expanded metal formed by stretching a steel sheet with a cut in a shape, a punch metal obtained by punching a through hole in a metal plate, and a commercially available synthetic resin scissors.

  The mesh 1 does not hinder the growth of the plant in the plant growth space S, and is large enough that the plant can easily grow beyond the mesh 1 with its growth. It is preferable that the leg is not fitted, and the size is about several mm to several tens of cm.

  As shown also in FIG. 2, the spacer 2 is, for example, a first wood 11 arranged on the ground G side with an interval of about 50 to 100 cm, and a second wood arranged to overlap the first wood 11. 12 and provided with stepped portions 11A and 12A that are formed so as to be fitted to each other in the joined state at the joined portion of the first wood 11 and the second wood 12. Further, the first wood 11 and the second wood 12 are provided with through-holes 11B and 12B through which the anchor 3 penetrates in the overlapped state.

  Each of the first wood 11 and the second wood 12 is formed by cutting a local thinning material on site and then impregnating with a wood preservative, and the size thereof is the thickness of the thinning material that can be collected locally. For example, a piece of wood having a substantially square cross section with a side of 100 mm is cut to a length of about 300 mm. Moreover, it is preferable that the length of each timber 11 and 12 has a length about 3 times the one side of a cross section, for example. Wood impregnated with a wood preservative as a chemical is preferable because it not only provides an antiseptic effect but also can be expected to have an aversion to herbivores. However, not only wood preservatives but also agents such as capsaicin may be used. Moreover, you may apply | coat instead of the chemical | medical agent impregnation to the woods 11 and 12.

  The step portions 11A and 12A can be formed using a stepped drill, for example. At this time, even if the heights of the step portions 11A and 12A are as low as several millimeters, they are fitted in the coupled state of the coupled portion and the coupled state is stabilized. In this case, the diameter D of the stepped portion is about 1.4 times the width W of the timbers 11 and 12, so that there is less rattling when the stepped portions 11A and 12A are fitted together, and a more stable spacer. 2. Further, the step portions 11A and 12A are more stable when provided on both the first wood 11 and the second wood 12, but it is also possible to provide the step portions 11A or 12A only on either the first wood 11 or the second wood 12. The bond is more stable than when not provided.

  As shown in FIGS. 3 and 4, the first wood 11 arranged on the ground G side is preferably arranged in a state where the longitudinal direction X intersects the contour line (for example, substantially perpendicular). Thus, the spacer 2 is less likely to lift from the ground G, and the stability is increased. That is, since the lower end portion of the first wood 11 is located on the valley side with respect to the center of gravity O of the spacer 2, the gravity is added as shown in the figure, and it is difficult to lift in the direction indicated by the arrow R.

  On the other hand, the longitudinal direction Y of the second wood 12 is arranged, for example, substantially parallel to the contour line. That is, since the contact between the mesh body 1 and the second wood 12 is arranged in a contour line, the horizontal connection between the adjacent spacers 2 via the mesh body 1 is unlikely to cause the positional displacement of the mesh body 1 in the left-right direction. Becomes stronger and a more stable structure.

  In the installation of the damage prevention apparatus 10 having the above-described configuration, the first wood 11 is first placed on the ground, and the second wood 12 is placed thereon so that the step portions 11A and 12A are fitted thereon, and anchored to the through holes 11B and 12B. 3 is fixed to fix the spacer to the ground G. Next, the mesh body 1 is placed on the spacer 2 and fixed to the anchor 3. That is, the food damage prevention apparatus 10 can be installed very easily.

  In addition, when using thinned wood on the timbers 11 and 12, it is not necessary to transport a bulky material for the formation of the spacer 2 over a long distance. The environment can be as natural as possible.

  The above example shows an example in which the spacer 2 is directly installed on the ground G. Even in such a case, the bottom surfaces of the timbers 11 and 12 are in contact with the ground G. The plant growth space S can be secured over a period. However, the present invention is not limited to the case where the first wood 11 is directly installed on the ground G, and the first wood 11 may be arranged on the vegetation base after the vegetation base is spread. Needless to say.

  FIG. 5 illustrates a configuration of a spacer 2 ′ which is a modified example of the spacer 2. As shown in FIG. 5, the spacer 2 ′ is formed by bringing a step portion 11 </ b> A ′ and a through hole 11 </ b> B ′ formed in the first wood 11 ′ to one side in the longitudinal direction X of the first wood 11 ′. Since the other structure is the same as FIGS. 1-4, the detailed description is abbreviate | omitted.

  FIG. 6 is a view showing an installation state of the spacer 2 '. As shown in FIG. 6, the center of gravity O of the spacer 2 ′ can be moved further to the mountain side than the spacer 2 shown in FIG. 4 by arranging the through hole 11B ′ to be on the mountain side of the slope. . That is, the spacer 2 ′ is more difficult to lift in the direction indicated by the arrow R.

  FIG. 7 is a diagram illustrating a configuration of the spacer 20 according to the second embodiment. 21 is a first wood placed on the ground G side, 22 is a second wood placed on top of the first wood 21, 23 is a stepped portion formed by a protrusion formed on the first wood 21, and 24 is this Hole-shaped step portions 21B and 22B formed in the second wood 22 so that the step portion 23 fits are through holes formed in the first wood and the second wood.

  As shown in FIG. 8, in the case of the present embodiment, the first and second timbers 21 and 22 are arranged in a state in which the longitudinal direction X intersects the contour line of the ground G (substantially perpendicular direction). It is possible to effectively prevent lifting from.

  FIG. 9 lists further modifications of the spacer 2. Each shows various configurations of the stepped portion.

  That is, as shown in FIG. 9A, the step portion 25 is a plate-like protrusion attached to the first wood 11, and corresponds to the step portion 25 as the step portion 26 in the second wood 12. A notch may be formed. In addition, although the example which forms the step parts 25 and 26 in the one end side of the 1st wood 11 and 12 is shown in this example, it cannot be overemphasized that you may provide in the both ends of the 1st wood 11 and 12. Similarly, the unevenness relationship of the step portions 25 and 26 may be reversed. Furthermore, both the step part 25 and the step part 26 are plate-shaped protrusions, and may be configured to be able to be fitted together.

  Alternatively, as shown in FIG. 9B, a rib may be formed in the first wood 11 as the step portion 27, and a groove may be formed in the second wood 12 as the step portion 28. Also in this case, it goes without saying that the number of the stepped portions 27 and 28 and the relationship between the irregularities can be arbitrarily changed. In addition, both the stepped portion 27 and the stepped portion 28 may be ribs, and may be configured so that they can be fitted in an intersecting manner.

  Further, as shown in FIG. 9C, a staple may be formed in the first wood 11 as the step portion 29, and a cut may be formed in the second wood 12 as the step portion 30. In addition, the number of the stepped portions 29 and 30 and the relationship between the irregularities can be arbitrarily changed. In this example as well, both the stepped portion 29 and the stepped portion 30 are staples, and may be configured so that they can be fitted together.

  FIG. 10 is a diagram showing a configuration of a spacer 31 which is a further modification of the present invention. In this embodiment, the spacer 31 is formed by combining a plurality of first woods 32 and second woods 33. Further, the first wood 32 and the second wood 33 are bound by a binding material 34 made of a string such as a wire or a rope.

  Various combinations of the first wood 32 and the second wood 33 can be considered. Basically, as shown in FIG. 10 (A), for example, two woods 32 and 33 are stacked in a lattice shape, It can be formed in a substantially square shape in plan view. Further, as shown in FIG. 10B, it is conceivable to form one second wood 33 on the two first woods 32 in a substantially K-shape. In any case, by arranging a plurality of timbers side by side, stability is improved, and it is not necessary to form cutting surfaces on the timbers 32 and 33, so that the height can be secured with a small amount of material. It becomes possible.

  In addition, although the binding by the binding material 34 is performed so as to intersect in a substantially X shape in plan view as shown in the drawing, the joint portion of the first wood 32 and the second wood 33 can be stabilized. Needless to say, it is also possible not to cross each other.

DESCRIPTION OF SYMBOLS 1 Net body 2,2 ', 20,31 Spacer 3 Anchor 10 Corrosion prevention apparatus 11, 11', 32 1st wood 11A, 11A 'Step part 11B, 21B Through-hole 12, 12', 33 2nd wood 12A Step part 12B, 22B Through-hole 23-30 Stepped part G Ground S Plant growth space

Claims (4)

A spacer that is interposed between the net and the ground arranged in a floating state from the ground of the protection area, and that secures a plant growth space between the net and the ground,
A first wood provided with a through hole through which the anchor passes ;
Have a second timber through hole through which the anchor penetrates is provided,
The through hole provided in the first wood extends in a direction perpendicular to the longitudinal direction of the first wood,
The through hole provided in the second wood extends in a direction perpendicular to the longitudinal direction of the second wood,
The longitudinal direction of the first wood and the longitudinal direction of the second wood are orthogonal to each other, and the through hole of the first wood and the through hole of the second wood are positioned in a straight line. A step portion is formed at a portion to be a joint portion on a surface that becomes the upper side of the first wood and / or a surface that becomes the lower side of the second wood when joining the two woods on the upper side of the first wood;
The step portion is formed by a concave portion having a shape cut in a circle around the through hole, and is formed so that the first wood and the second wood are joined in a fitted state. The spacer of the corrosion prevention apparatus characterized by the above-mentioned. The longitudinal direction of the first wood and the longitudinal direction of the second wood are orthogonal to each other, and the through hole of the first wood and the through hole of the second wood are positioned in a straight line. The spacer according to claim 1, wherein two timbers are stacked on the upper side of the first timber, and both are fitted by a step formed on the joint, and the spacer is lifted from the ground of the protection area via the spacer. An anti-corrosion device, comprising: a net-like body arranged in a state where the net-like body is arranged; An anti-corrosion method using the spacer of the anti-corrosion device according to claim 1,
The first wood and the second wood are arranged on the ground in this order, and at this time, the longitudinal direction of the first wood and the longitudinal direction of the second wood are orthogonal to each other, and the first wood The second wood is stacked on the upper side of the first wood so that the through-hole and the through-hole of the second wood are positioned in a straight line, and both are fitted by a step portion formed in the joint portion, An anchor is driven into each through hole of each of the first and second timbers so as to fix the first and second timbers to the ground, and a net is placed on the second timber and fixed. An anti-corrosion method characterized by installing a mesh body in a state where a plant growth space is secured between the mesh bodies. The first wood and the second wood are arranged so that a longitudinal direction of the first wood intersects a contour line of the ground, and a longitudinal direction of the second wood is parallel to the contour line of the ground. Corrosion prevention method.