Vegetation device, vegetation protection structure, and method for installing the vegetation device

Abstract

To provide a vegetation device, with workability and safety improved in installation work, for greening a vegetation area while preventing feeding damage to vegetation plants caused by wild animals.SOLUTION: A vegetation device 100 comprises: a vegetation mat 101 extending lengthwise and crosswise, for greening a vegetation area by being laid on the vegetation area; a net body 106 extending lengthwise and crosswise, and attached to the vegetation mat 101 so as to cover a surface of the vegetation mat 101 from above, for protecting vegetation plants germinated or grown on the vegetation mat 101 from feeding damage caused by animals; and a plurality of horizontal materials 111 with a longer shape extending crosswise, supported at a plurality of support positions of the net body 106 respectively. On the horizontal materials 111 are provided parts to be fixed to which a support leg 115 supporting the net body 106 by separating it from the vegetation mat 101 at each support position. When the vegetation device 100 is installed in the vegetation area, it is assembled in a feeding damage preventable form by erecting the support leg 115 between the vegetation mat 101 and the net body 106 laid on the vegetation area to fix it to the parts to be fixed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vegetation device that is laid on a vegetated area such as a slope, a slope, or other soil to be greened, and that greens the vegetated area while preventing damage from wild animals, a vegetation protection structure using the vegetation device, and a method for installing the vegetation device. [Background technology]

[0002] On construction surfaces such as various slopes and newly developed land, active greening and planting are being carried out to preserve the landscape and environment of the slopes and prevent soil erosion. Traditionally, greening has been achieved by fixing vegetation mats, which hold growth substrate materials (or vegetation substrates) such as soil, seeds, fertilizer, and water-retaining materials, to the soil of the vegetation area using anchors or other means. However, when the vegetation area is installed deep in the mountains on road slopes and in areas where wild plants such as deer are present, damage to the plants in the vegetation area, such as being eaten by wild animals, is frequent. In other words, there has been a problem in which wild animals invade the vegetation area and eat or trample the sprouts of the vegetation plants, causing them to wither or grow poorly, resulting in insufficient vegetation in the vegetation area. To address this problem, various methods have been used to green the vegetation area while preventing damage by wild animals.

[0003] For example, Patent Document 1 discloses a herbivore-preventing vegetation material for preventing damage to vegetation by animals such as wild deer. In the following paragraphs, the reference number for Patent Document 1 is indicated in parentheses. The herbivore-preventing vegetation material (10) of Patent Document 1 includes a vegetation strip (11) to be laid on a slope (20) and a netting (12) partially attached to the surface of the vegetation strip (11) to prevent damage to vegetation (P) by wild animals. Both edges of a portion of the netting (12) with an expanded width (Lb) greater than the predetermined width (La) are attached to both edges of a portion of the vegetation strip (11) with a predetermined width (La). A height-retaining member (13) inserted between the vegetation strip (11) and the netting (12) forms a protective space (R) with a triangular or trapezoidal cross section between the vegetation strips (11) and the netting (12). The height-retaining member (13) is composed of a horizontal member (13a) that abuts the inner surface of the net (12) at approximately the center within the expanded width (Lb) and support legs (13b) that hold the horizontal member (13a) on the vegetation strip (11). In the installation method for the feeding-prevention vegetation material (10), first, both sides of the expanded width (Lb) portion of the net (12) that prevents vegetation (P) from being eaten by wild animals are attached to both edges of the specified width (La) portion of the vegetation strip (11) that will be laid on the slope (20). Since the feeding-prevention vegetation strip (10) secures the vegetation strip (11) and the net (12) at a specified interval, the feeding-prevention vegetation material (10) without the height-retaining member (13) is deployed on the slope (20) and then secured with anchors (16) or the like. Next, a height-retaining member (13) consisting of a horizontal member (13a) that abuts the inner surface of the net body (12) at approximately the center within the expanded width (Lb) and a support leg (13b) that holds this horizontal member (13a) on the vegetation belt (11) is inserted into the free space between the vegetation belt (11) and the net body (12) to form each protective space (R). Through the above steps, the herbivore-preventing vegetation material (10) is installed, preventing wild animals from herbivore-preserving the vegetation (P) in the vegetation belt (11). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4315230 Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional vegetation-preventing materials (vegetation devices) such as those described in Patent Document 1, when installing a vegetated area such as a slope, a vegetation strip and netting assembly are laid and secured to the vegetation area, and then height-retaining members are inserted and positioned at predetermined insertion positions between the vegetation strip and netting. However, when the vegetation area is a slope or incline, workers are required to climb the slope multiple times while carrying multiple height-retaining members (assemblies of horizontal members and leg members, or both) to multiple insertion positions at different heights on the slope. Furthermore, when working in a location with poor footing on a steep slope, workers must carry long height-retaining members and insert them between the vegetation strip and netting while avoiding them getting caught in the mesh, which is a difficult and dangerous task. In other words, conventional vegetation devices and installation methods have problems with ease of installation and are dangerous for workers.

[0006] The present invention has been made to solve the above problems, and its object is to provide a vegetation protection structure in which a vegetation protection device is installed on a slope, and a method for installing a vegetation protection device, which has improved workability and / or safety during installation work, and which is used to green a vegetated area while preventing damage to vegetation by wild animals. [Means for solving the problem]

[0007] A vegetation device according to one embodiment of the present invention is a vegetation device that greens a vegetated area while preventing damage to vegetation plants by animals, and includes: a vegetation mat extending lengthwise and widthwise and laid in the vegetation area to green the vegetation area; a netting body extending lengthwise and widthwise, attached to the vegetation mat so as to cover the surface of the vegetation mat from above, for protecting vegetation that has germinated or grown on the vegetation mat from being eaten by animals; a plurality of horizontal members each having an elongated shape extending laterally and held at a plurality of support positions of the net body; The horizontal member is provided with a fixed portion to which a support leg that supports the net body at a distance from the vegetation mat at each support position is fixed, When the vegetation device is installed in the vegetation area, the support legs are erected between the vegetation mat laid in the vegetation area and the mesh body and fixed to the fixed parts, thereby assembling the device in a form that can prevent damage from being eaten.

[0008] According to one embodiment of the vegetation device of the present invention, the net body is attached to the vegetation mat, and multiple long horizontal members are respectively held at multiple support positions on the net body. This eliminates the need to separately transport each of the multiple long horizontal members to each support position when assembling and installing the vegetation device in a vegetation area. In particular, when the vegetation area is an inclined surface such as a slope, this eliminates the need for a worker to carry multiple long horizontal members up the vegetation area and transport each horizontal member to each support position. In other words, after laying the vegetation mat and net body in the vegetation area, the worker only needs to transport the support legs to their support positions. The vegetation device can then be easily assembled by erecting the support legs on the vegetation mat and securing them to the fixed portions of the horizontal members previously held at each support position. Therefore, the vegetation device of the present invention can significantly improve its ease of installation and safety.

[0009] A further embodiment of the present invention is a vegetation planting device according to the above embodiment, characterized in that each horizontal member is sandwiched and held between the vegetation mat and the mesh body at each support position. In other words, by lifting each horizontal member from above, the mesh body can be lifted from the vegetation mat, easily creating and maintaining space for inserting the support legs. Therefore, the vegetation planting device of this embodiment can be further improved in terms of ease of installation. Furthermore, by storing the horizontal members between the vegetation mat and the mesh body, the vegetation planting device can be maintained in a compact form.

[0010] In a further embodiment of the present invention, the horizontal members are connected to the netting body at the respective support positions by connectors. By lifting the horizontal members from above, the netting body can be lifted from the vegetation mat, easily creating and maintaining a space for inserting the support legs. Therefore, the vegetation device of this embodiment can be further improved in terms of ease of installation.

[0011] In a further embodiment of the present invention, the horizontal members are long rods, and the vegetation mat and the netting can be rolled up or folded vertically while holding the horizontal members. In other words, the vegetation device can be transformed into a compact shape for easy transport and storage.

[0012] A further embodiment of the present invention provides a vegetation planting device according to the above embodiment, characterized in that the support legs are logs of thinned wood, and the fixed portions of the horizontal members are fixed to the top surfaces of the upright support legs. In other words, thinned wood logs can be used for the support legs fixed to the horizontal members. This makes it possible to procure support legs from timber cut down during construction work, or from contractors near the construction site, and makes effective use of thinned wood, which is often left abandoned after being cut down.

[0013] The vegetation protection structure according to one embodiment of the present invention comprises: Any one of the above-described vegetation devices; and a support leg provided upright between the vegetation mat and the mesh body of the vegetation device, The vegetation mat is laid in the vegetation area, and the net is supported by the support legs in a state where it is floating above the vegetation mat.

[0014] According to one embodiment of the present invention, the vegetation protection structure can exert the effects of any of the above-described vegetation protection devices as a vegetation protection structure. Therefore, the vegetation protection structure of the present invention significantly improves the ease of construction and safety in greening work in vegetated areas.

[0015] A method according to one aspect of the present invention is a method for installing a planting device according to any one of the above aspects in a planting area, the method comprising the steps of: laying the planting device in the planting area and fixing at least one of a planting mat and a netting body of the planting device to the planting area with anchors; a step of lifting the horizontal member held at the support position of the net body to form a space between the vegetation mat and the net body; a step of placing a support leg in the space and erecting it; a step of fixing the fixed portion of the horizontal member to the upright support leg; The present invention is characterized by comprising:

[0016] The vegetation protection structure of one embodiment of the present invention can achieve the same effects as any of the above-described vegetation devices. In particular, by lifting the horizontal members from above, the mesh can be raised from the vegetation mat, easily creating and maintaining space for inserting the support legs. As a result, the work of erecting the support legs in their supporting positions is simplified. Therefore, the method of the present invention significantly improves the ease and safety of installing the vegetation device. [Effects of the Invention]

[0017] The vegetation device of the present invention allows for greening of a vegetation area while preventing damage to vegetation by animals, and improves ease of installation and / or safety. The "vegetation area" of the present invention refers to an area where plants are grown and where the vegetation should be protected from damage by wild animals and birds. In other words, the "vegetation area" is a broad concept that includes slopes, fields, countryside, vegetation mats, etc. Similarly, the "vegetation plants" is a broad concept that includes flowers for greening slopes, edible plants such as vegetables and grains, etc. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a schematic perspective view of a vegetation device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a partially enlarged perspective view of the vegetation device of FIG. 1. [Figure 3] 3 is a cross-sectional view of the vegetation device of FIG. 2. [Figure 4] 1 is a schematic diagram showing a vegetation mat used in a vegetation device according to one embodiment of the present invention. [Figure 5] 1 is a schematic diagram showing a vegetation protection structure in which a vegetation device according to an embodiment of the present invention is installed in a vegetation area. [Figure 6] Schematic diagram showing the change over time of the vegetation protection structure in Figure 5. [Figure 7] 1 is a schematic diagram showing a step of a method for installing a vegetation device according to an embodiment of the present invention on a slope (vegetation area), illustrating the step of laying a vegetation mat and a net on the slope. [Figure 8] 1 is a schematic diagram showing a step in a method for installing a vegetation device of one embodiment of the present invention on a slope (vegetation area), illustrating the step of manipulating the horizontal members to form a space between the vegetation mat and the mesh body. [Figure 9] This is a schematic diagram showing one step in a method for installing a vegetation device of one embodiment of the present invention on a slope (vegetation area), illustrating the step of erecting support legs in the space between the vegetation mat and the mesh body and fixing them to horizontal members. [Figure 10] FIG. 4 is a cross-sectional view of a vegetation device according to another embodiment (second embodiment) of the present invention. [Figure 11] 11 is a schematic diagram showing a vegetation protection structure in which the vegetation device of FIG. 10 is installed in a vegetated area. [Figure 12] FIG. 10 is a cross-sectional view of a vegetation device according to another embodiment (third embodiment) of the present invention. [Figure 13] 13 is a schematic diagram showing a vegetation protection structure in which the vegetation device of FIG. 12 is installed in a vegetated area. [Figure 14] FIG. 10 is a cross-sectional view of a vegetation device according to another embodiment (fourth embodiment) of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the shapes of the drawings referred to in the following description are conceptual or schematic diagrams for explaining preferred shapes and dimensions, and the dimensional ratios do not necessarily correspond to the actual dimensional ratios. In other words, the present invention is not limited to the dimensional ratios in the drawings.

[0020] The vegetation device 100 of this embodiment is installed in a vegetated area, particularly on a slope, to protect the vegetation from predation by wild animals such as deer while greening the soil surface of the vegetated area with vegetation. Greening with vegetation may be achieved, for example, by introducing grasses or native plants from seeds, or by encouraging the natural introduction of plants native to the surrounding area. Furthermore, by laying the vegetation device 100 on the soil surface of a slope, it can also improve the slope's appearance and prevent soil erosion. However, the vegetation device 100 of the present invention may be used on any soil surface other than a slope.

[0021] In this specification, when the vegetation device 100 is laid on a slope, the direction along the inclination of the slope is defined as the "vertical" direction, and the direction along the contour line of the slope is defined as the "horizontal" direction. Furthermore, when the vegetation device 100 is laid on a slope, the side that is located on the toe side (upper or higher side) of the slope is defined as the "upper" position, and the side that is located on the toe side (lower or lower side) of the slope is defined as the "lower" position.

[0022] The configuration of the vegetation device 100 will be described with reference to Figures 1 to 3. Figure 1 is a schematic perspective view of the vegetation device 100 according to one embodiment of the present invention. Figure 2 is a partially enlarged perspective view of the vegetation device 100. Figure 3 is a cross-sectional view of the vegetation device 100 taken along line AA.

[0023] As shown in FIG. 1, the vegetation device 100 of this embodiment has a planar overall shape and can be rolled up compactly. The vegetation device 100 may also be folded so that it overlaps vertically. As shown in FIGS. 2 and 3, the vegetation device 100 includes a vegetation mat 101 having a planar shape capable of covering the vegetation area to be greened, a planar mesh body 106 that covers the surface of the vegetation mat 101 from above, and a plurality of elongated horizontal members 111 that extend laterally. When the vegetation device 100 is installed in the vegetation area, a plurality of support legs 115 are erected between the vegetation mat 101 and the mesh body 106 laid in the vegetation area, forming a vegetation protection space between the mesh body 106 and the vegetation mat 101 that cannot be penetrated by animals, thereby assembling the vegetation device 100 in a form that can prevent animal damage (see FIG. 5). Here, the support legs 115 are members for supporting the net body 106 at a distance from the vegetation mat 101 by placing the net body 106 on the top surface of the support legs 115 at each support position. In this embodiment, the support legs 115 are preferably rods shorter than the horizontal members 111, and more preferably logs of thinned wood. However, the support legs of the present invention are not limited to this embodiment and may take various forms.

[0024] The vegetation mat 101 is a flexible sheet extending lengthwise and widthwise to promote the growth of vegetation plants. Fig. 4 is a schematic perspective view showing the vegetation mat 101 of this embodiment. The vegetation mat 101 has a front surface that is placed on the side opposite to the soil to be greened with vegetation plants, and a back surface that is placed on the soil side. In this embodiment, the vegetation mat 101 is composed of a flexible mesh sheet 102 extending lengthwise and widthwise, and a seed-bearing sheet 103 attached to the back surface of the mesh sheet 102.

[0025] As shown in FIG. 4, the mesh sheet 102 is made of a net formed by weaving warp and weft threads at approximately right angles. The mesh sheet 102 has multiple locations where the mesh is doubled, and multiple elongated tube sections 104 extending horizontally are provided at these locations. Each elongated tube section 104 is made of a mesh-like elongated tube and is configured to hold vegetation bags 105 containing greening materials. The greening materials are vegetative materials used for greening and include at least one of seeds, fertilizer, soil conditioner, water-retaining material, water-repellent inhibitor, soil, and growth base material. Each elongated tube section 104 extends longitudinally across the vegetation mat 101. Each elongated tube section 104 is composed of a coarse section 104a and a fine section 104b. The coarse section 104a and the dense section 104b are defined as areas with relatively different mesh sizes in both or either the vertical or horizontal directions. In a plan view of the vegetation mat 101, the sparse portion 104a is formed biased toward one end in the width direction perpendicular to the longitudinal direction of the long cylindrical portion 104. In particular, the sparse portion 104a occupies approximately the upper half of the vertical direction in the plane of the vegetation mat 101, and the dense portion 104b occupies approximately the lower half. In other words, when the vegetation planting device 100 is laid on a slope, the sparse portion 104a, which occupies part of the outer periphery of the long cylindrical portion 104, is located on the upper side, and the dense portion 104b, which occupies the remainder of the outer periphery of the long cylindrical portion 104, is located on the lower side, thereby effectively preventing the greening material from flowing out from the long cylindrical portion 104.

[0026] The seeded sheet 103 is made of a nonwoven or woven fabric sheet with root and water permeability, and has plant seeds scattered on its surface. In other words, after the vegetation mat 101 is laid in the vegetation area, it is possible for vegetation plants to germinate from seeds on its surface over time.

[0027] The netting body 106 extends lengthwise and widthwise and is attached to the vegetation mat 101 so as to cover the surface of the vegetation mat 101 from above. It is configured to protect vegetation that has germinated or grown on the vegetation mat 101 from damage by wild animals. In other words, the netting body 106, while supported by the support legs 115, preferably has enough strength to maintain its original shape or to bend slightly when a wild animal such as a deer climbs on it. In this embodiment, the netting body 106 is made of wire mesh woven together from rigid wires. The mesh size and shape of the wire mesh are determined as desired to suit the target wild animal. However, the netting body of the present invention is not limited to wire mesh and can be made of any material. For example, the netting body may be a rigid netting body integrally molded from a synthetic resin material. Such a netting body is called a Netron (registered trademark) sheet. Because the netting body is formed as a so-called "non-woven net" integrally molded from synthetic resin, it is stronger and more durable than netting made from woven fibers.

[0028] The vegetation mat 101 and the mesh body 106 are connected to each other by a plurality of fasteners 108. In this embodiment, the fasteners 108 are C-rings that fasten the wires of the mesh sheet 102 and the wires of the mesh body 106 together. The fasteners 108 may be selected from any other members than C-rings, such as cable ties or wire strips. The fasteners 108 are arranged in rows along the horizontal direction. In this embodiment, the vertical spacing between the rows of fasteners 108 is approximately 0.5 to 1.5 m, but may be set at any value.

[0029] The horizontal members 111 each have a long shape extending laterally and are held at a plurality of support positions for supporting the mesh body 106. The one or more support positions are arbitrarily determined between the rows of fasteners 108. In this embodiment, the horizontal members 111 are made of rigid iron wire or steel bars extending laterally. The horizontal members 111 have a length that spans substantially the entire width of the vegetation mat 101 and the mesh body 106 in the lateral direction. In this embodiment, the length of the horizontal members 111 is preferably set to approximately 0.5 to 1.5 m. Each horizontal member 111 is sandwiched and held between the vegetation mat 101 and the mesh body 106. Each horizontal member 111 is connected to the back surface of the mesh body 106 at each support position by a connector 113. In this embodiment, the connector 113 is a cable tie or wire that fastens the horizontal member 111 to the wire of the mesh body 106, but any connector may be selected. Furthermore, the horizontal member 111 is provided with fixed portions to which the top surfaces of the support legs 115 are fixed. The fixed portions are arbitrarily determined at a plurality of positions in the longitudinal direction of the horizontal member 111, such as at both ends or in the center.

[0030] Next, with reference to Figures 5 and 6, a vegetation protection structure 10 that protects a slope G, which is a vegetation area, using a vegetation device 100 of this embodiment will be described. As shown in Figure 5, in the vegetation protection structure 10, the vegetation device 100 is installed in an assembled state on the slope G. More specifically, a vegetation mat 101 is laid on the soil surface of the slope G, and a mesh body 106 is placed on top of it. The vegetation mat 101 is fixed to the slope G with anchors 119, thereby covering the soil surface of the slope G in a manner that allows for greening. In this embodiment, the anchors 119 fix both the vegetation mat 101 and the mesh body 106 to the slope G at the positions of the fasteners 108. The anchors 119 are L-shaped anchor pins, and are arranged so that the hook portion faces the slope toe.

[0031] At each support position, the net body 106 is supported by the support legs 115 in a floating state above the vegetation mat 101. In other words, a vegetation protection space is formed between the vegetation mat 101 and the net body 106. In this embodiment, the support positions (i.e., the erected positions of the support legs 115) are determined approximately in the center between the rows of fasteners 108 in the vertical direction (inclination direction) (or between the fixing positions of the anchors 119). The vegetation protection space forms a substantially triangular or trapezoidal vertical cross-section with the support positions as vertices in the vertical direction (inclination direction). However, the vegetation protection space may form a flatter trapezoidal vertical cross-section by determining multiple support positions in the vertical direction. In this embodiment, the support legs 115 are thinned logs. The length of the support legs 115 is preferably approximately 0.1 to 0.5 m to ensure the protection of vegetation. In this embodiment, the support legs 115 are simply placed on the vegetation mat 101, but if the slope G is too steep and the support legs cannot be set up stably, the support legs 115 may be fixed by being driven into the slope G with anchors or the like.

[0032] In the vegetation protection structure 10, the fixed portion of the horizontal member 111 is fixed to the top surface of the support leg 115 erected on the vegetation mat 101 via a fastener 117. Here, two or more support legs 115 are fixed to one horizontal member 111. In other words, the horizontal member 111 and the multiple support legs 115 work together to form a support platform at each support position (in the vertical direction) that supports and raises the mesh body 106. In this embodiment, the fastener 117 is a nail, but any fixing means can be selected.

[0033] Furthermore, the vegetation protection structure 10 has a moderate rigidity of the netting 106, which prevents wild animals, especially deer, from entering the vegetation protection space. As a result, the vegetation protection structure 10 can prevent damage to newly sprouted sprouts and effectively promote the greening of the slope G.

[0034] Figure 6 shows the vegetation protection structure 10' as it has aged since the state immediately after installation shown in Figure 5. As shown in Figure 6, in the vegetation protection structure 10', vegetation P grows luxuriantly on the vegetation mat 101, greening the slope G. At this time, the vegetation P has grown until its tips extend upward from the netting 106. Wild animals can eat the tips of the vegetation P that extend upward from the vegetation protection space, but the bases of the vegetation P are protected, effectively preventing the vegetation P from withering due to feeding damage. Therefore, the vegetation protection structures 10, 10' effectively promote the greening of the slope G while preventing feeding damage by wild animals and making it possible to stably maintain the greened state.

[0035] Next, a method for installing the vegetation device 100 in a vegetation area (slope G) in order to construct the vegetation protection structure 10 will be described with reference to FIGS.

[0036] First, the vegetation planting device 100 and the required number of support legs 115 are prepared according to the area of ​​the slope G to be greened. The support legs 115 are made of thinned logs, so they can be procured from lumber cut down during construction or from contractors near the construction site. Next, a worker carries the rolled-up vegetation planting device 100 to the slope top side of the slope G. As shown in FIG. 7 , the rolled-up vegetation planting device 100 is unfolded by rolling it from the top to the bottom of the slope G. Then, the vegetation mat 101 and / or the mesh body 106 are fixed to the slope G with anchors 119, thereby laying the vegetation mat 101 and the mesh body 106 on the slope G. At this time, each horizontal member 111 is arranged so that its longitudinal direction follows the contour line of the slope G (perpendicular to the inclination direction), and is arranged at each support position at a different height on the slope G. That is, the worker does not need to carry the long horizontal member 111 up the slope G again to each support position. The worker then carries the plurality of support legs 115 to each support position.

[0037] Next, as shown in FIG. 8, the worker lifts the horizontal member 111 held between the vegetation mat 101 and the mesh body 106 at each support position to form a space between the vegetation mat 101 and the mesh body 106. At this time, since the horizontal member 111 is connected to the mesh body 106 by the connector 113, lifting the horizontal member 111 makes it possible to easily lift the mesh body 106 off the surface of the vegetation mat 101. Then, while maintaining this space, multiple support legs 115 are inserted into the space and are each erected at a predetermined lateral position on the vegetation mat 101. Next, as shown in FIG. 9, one horizontal member 111 is placed on the top surfaces of the multiple support legs 115, and the fixed portion of the horizontal member 111 is fixed to the top surface of the support leg 115 using a fastener 117. More specifically, by driving fasteners 117, which are also nails, into the top surfaces of the support legs 115 from above the horizontal members 111, the mesh body 106, horizontal members 111, and support legs 115 can be integrally connected or fixed. By performing the above steps at all support positions, it is possible to assemble the vegetation device 100 and construct the vegetation protection structure 10 on the slope G. Note that the installation method described above is merely an example, and each step may be modified as appropriate.

[0038] The following describes the effects of the vegetation device 100 according to one embodiment of the present invention.

[0039] According to the vegetation device 100 of this embodiment, the net body 106 is attached to the vegetation mat 101, and multiple long horizontal members 111 are connected to the net body 106 and held at multiple support positions. This eliminates the need to separately transport each of the multiple long horizontal members 111 to each support position when assembling and installing the vegetation device 100 in a vegetation area. In particular, when the vegetation area is a steep slope G, this eliminates the need for a worker to carry the multiple long horizontal members 111 up the slope G and transport each horizontal member 111 to each support position. In other words, after laying the vegetation mat 101 and the net body 106 on the slope G, the worker only needs to transport the support legs 115 to the support positions. Then, by lifting each horizontal member 111 from above, the worker can lift the net body 106 from the vegetation mat 101, easily creating and maintaining a space for inserting the support legs 115. Next, the support legs 115 are erected at each support position through the space, and the support legs 115 are fixed to the fixed portions of the horizontal members 111 that are held in advance at each support position, thereby easily assembling the vegetation device 100. Therefore, the vegetation device 100 of this embodiment can be significantly improved in terms of workability and safety.

[0040] The present invention is not limited to the above-described embodiment, and various embodiments are possible. Hereinafter, other embodiments of the present invention will be described. In each drawing, components with the same reference numerals have the same or similar features unless otherwise specified.

[0041] [Second embodiment] FIG. 10 is a schematic cross-sectional view of a vegetation device 200. FIG. 11 is a schematic cross-sectional view showing a vegetation protection structure 20 including the vegetation device 200. As shown in FIG. 10, the vegetation device 200 includes a vegetation mat 201 extending lengthwise and widthwise and laid in a vegetation area to green the vegetation area; a net 206 extending lengthwise and widthwise and attached to the vegetation mat 201 so as to cover the surface of the vegetation mat 201 from above and protect vegetation that has germinated or grown on the vegetation mat 201 from damage by wild animals; and a plurality of horizontal members 211 having elongated shapes extending laterally and held at a plurality of support positions on the net 206. In this embodiment, the horizontal members 211 are round wooden bars. Each horizontal member 211 is sandwiched and held between the vegetation mat 201 and the net 206 at each support position, but is not connected to the net 206. The horizontal member 211 is provided with fixed portions to which support legs 215 are fixed, which support the net body 206 at a distance from the vegetation mat 201 at each support position. In this embodiment, fasteners 217 that fasten the horizontal member 211 to the support legs 215 are saddle bands (or saddle fittings). When the vegetation device 200 is installed in a vegetation area, the support legs 215 are erected between the vegetation mat 201 laid in the vegetation area and the net body 206 and fastened to the fixed portions with the fasteners 217, thereby assembling the vegetation device 200 in a form that can prevent damage from being caused by insects. As shown in FIG. 11 , in the vegetation protection structure 20, the fasteners (saddle bands) 217 ​​are fixed to the top surfaces of the support legs 215 so as to press down on both the wires of the net body 206 and the horizontal members 211 from above.

[0042] According to the vegetation device 200 of this embodiment, the net 206 is attached to the vegetation mat 201, and the multiple long horizontal members 211 are held at multiple support positions, respectively. This eliminates the need to separately transport each of the multiple long horizontal members 211 to each support position when assembling and installing the vegetation device 200 in a vegetation area. Furthermore, by lifting each horizontal member 211 from above, a worker can easily lift the net 206 off the vegetation mat 201 and create and maintain a space for inserting the support legs 215. Therefore, the vegetation device 200 of this embodiment, like the vegetation device 100, can significantly improve its ease of installation and safety.

[0043] [Third embodiment] FIG. 12 is a schematic cross-sectional view of a vegetation device 300. FIG. 13 is a schematic cross-sectional view showing a vegetation protection structure 30 using the vegetation device 300. As shown in FIG. 12, the vegetation device 300 includes a vegetation mat 301 extending lengthwise and widthwise and laid in a vegetation area to green the vegetation area; a net 306 extending lengthwise and widthwise and attached to the vegetation mat 301 so as to cover the surface of the vegetation mat 301 from above and protect vegetation that has germinated or grown on the vegetation mat 301 from damage by wild animals; and a plurality of horizontal members 311 having a long shape extending laterally and held at a plurality of support positions of the net 306. In this embodiment, the horizontal members 311 are long wooden boards. Each horizontal member 311 is connected to the net 306 from its surface at each support position. More specifically, the horizontal member 311 is fastened to the mesh body 306 by connectors 313, which are cable ties or wires. The horizontal member 311 has fixed portions to which support legs 315, which support the mesh body 306 at a distance from the vegetation mat 301 at each support position, are fixed. In this embodiment, fasteners 317 that fasten the horizontal member 311 to the support legs 315, are screws. When the vegetation device 300 is installed in a vegetation area, the support legs 315 are erected between the vegetation mat 301 laid in the vegetation area and the mesh body 306 and fastened to the fixed portions with the fasteners 317, thereby assembling the vegetation device 300 in a form that can prevent damage from insects. In the vegetation protection structure 30 shown in FIG. 13 , the plate-shaped horizontal member 311 presses down on the mesh body 306 from above, and fasteners (screws) 317 are driven into the upper surface of the horizontal member 311 to fasten the horizontal member 311 to the top surfaces of the support legs 315.

[0044] According to the vegetation device 300 of this embodiment, the net 306 is attached to the vegetation mat 301, and multiple long horizontal members 311 are held at multiple support positions. This eliminates the need to separately transport each of the multiple long horizontal members 311 to each support position when assembling and installing the vegetation device 300 in a vegetation area. Furthermore, by lifting each horizontal member 311 from above, a worker can easily create and maintain a space for inserting the support legs 315 by lifting the net 306 connected to the horizontal member 311 from the vegetation mat 301. In particular, in this embodiment, the horizontal members 311 are disposed on the surface of the net 306, making them easy to grasp. Therefore, the vegetation device 300 of this embodiment, like the vegetation device 100, can significantly improve its ease of installation and safety.

[0045] [Fourth embodiment] FIG. 14 is a schematic cross-sectional view of a vegetation device 400. As shown in FIG. 14, the vegetation device 400 includes a vegetation mat 401 extending lengthwise and widthwise and laid in a vegetation area to green the vegetation area; a net 406 extending lengthwise and widthwise and attached to the vegetation mat 401 so as to cover the surface of the vegetation mat 401 from above and protect vegetation that has germinated or grown on the vegetation mat 401 from being eaten by wild animals; and a plurality of horizontal members 411 having a long shape extending laterally and held at a plurality of support positions on the net 406. In this embodiment, the horizontal members 411 are round wooden bars. Each horizontal member 411 is housed in and held in a long cylindrical portion 404 of the vegetation mat 401 at each support position. The horizontal members 411 are not connected to either the vegetation mat 401 or the net 406. The horizontal member 411 is provided with fixed portions to which support legs 415 are fixed, which support the net body 406 at a distance from the vegetation mat 401 at each support position. When the vegetation device 400 is installed in the vegetation area, the horizontal member 411 is pulled out from the long tube portion 404 at each support position and inserted between the vegetation mat 401 and the net body 406. The support legs 415 are then erected between the vegetation mat 401 and the net body 406 laid in the vegetation area and fixed to the fixed portions with fasteners 417, thereby assembling the vegetation device in a form that can prevent damage from insects.

[0046] According to the vegetation device 400 of this embodiment, the mesh 406 is attached to the vegetation mat 401, and the multiple long horizontal members 411 are held at multiple support positions, respectively. This eliminates the need to separately transport each of the multiple long horizontal members 411 to each support position when assembling and installing the vegetation device 400 in a vegetation area. Furthermore, by storing and holding the horizontal members 411 in the long tube portion 404, it is possible to properly hold the horizontal members 411 so that they do not move vertically from the support positions of the mesh 406 on the vegetation mat 401. Therefore, the vegetation device 400 of this embodiment can be improved in terms of ease of installation and safety.

[0047] The present invention is not limited to the above-described embodiment, and various modifications are possible. Modifications of the present invention will be described below.

[0048] (1) In the above embodiment of the vegetation device, the vegetation mat is formed of two layers: a mesh sheet and a seed-bearing sheet. However, the present invention is not limited to this. For example, the vegetation mat may be formed of only one layer of a mesh sheet, a nonwoven fabric, or a woven fabric sheet.

[0049] (2) In the vegetation planting device and vegetation protection structure of this embodiment, the support legs are selected from thinned logs, but the present invention is not limited to this. For example, the support legs may be made of boards or lumber, or may be made of synthetic resin.

[0050] The present invention is not limited to the above-described embodiments, but can be embodied in various forms within the technical scope of the present invention. [Explanation of symbols]

[0051] 10 Vegetation protection structures 100 Vegetation Device 101 Vegetation Mat 102 Mesh Sheet 103 Seed Sheet 104 Long tube part 105 Vegetation Bag 106 Net body 108 Fasteners 111 Horizontal material 113 Connector 115 Support legs 117 Fixtures 119 Anchor P Vegetation G Slope (vegetated area)

Claims

1. A vegetation device that greens a vegetated area while preventing damage to vegetation plants by animals, a vegetation mat extending lengthwise and widthwise and laid in the vegetation area to green the vegetation area; a netting body extending lengthwise and widthwise, attached to the vegetation mat so as to cover the surface of the vegetation mat from above, for protecting vegetation that has germinated or grown on the vegetation mat from being eaten by animals; a plurality of horizontal members each having an elongated shape extending laterally and held at a plurality of support positions of the net body; Each horizontal member is connected to the mesh body at each support position by a connector; The horizontal member is provided with a fixed portion to which a support leg that supports the net body at a distance from the vegetation mat at each support position is fixed, When the vegetation device is installed in the vegetation area, the support legs are erected between the vegetation mat laid in the vegetation area and the horizontal member connected to the mesh body, and fixed to the fixed part, thereby assembling the vegetation device in a form that can prevent damage from being eaten.

2. 2. The vegetation planting device according to claim 1, wherein each of the horizontal members is sandwiched and held between the vegetation mat and the mesh body at each of the support positions.

3. A vegetation device as described in claim 1 or 2, characterized in that the horizontal member is a long wooden board.

4. 3. The vegetation device according to claim 1 or 2, wherein the horizontal member is a long rod, and the vegetation mat and the net body can be rolled up or folded vertically while the horizontal member is held.

5. The vegetation device according to any one of claims 1 to 4, characterized in that the support legs are logs of thinned wood, and the fixed parts of the horizontal members are fixed to the top surfaces of the upright support legs.

6. A vegetation device according to any one of claims 1 to 5; and a support leg provided upright between the vegetation mat and the mesh body of the vegetation device, A vegetation protection structure characterized in that the vegetation mat is laid in the vegetated area, and the net body is supported by the support legs in a state where it is floating above the vegetation mat.

7. 6. A method for installing a planting device according to any one of claims 1 to 5 in a planted area, comprising the steps of: laying the planting device in the planting area and fixing at least one of a planting mat and a netting body of the planting device to the planting area with anchors; a step of lifting the horizontal member held at the support position of the net body to form a space between the vegetation mat and the net body; a step of placing a support leg in the space and erecting it; a step of fixing the fixed portion of the horizontal member to the upright support leg; A method comprising:

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