JP4692943B2 - Vegetation sheet - Google Patents

Description

  The present invention relates to a vegetation sheet that is suitable for protecting soil and preventing greening by propagating vegetation on slopes such as riverbanks, banks, slopes, and the like.

A vegetation sheet for protecting the ground by propagating vegetation on the slope and preventing the outflow of soil and for greening has been used conventionally. For example, a bag made of a water-soluble material filled with a vegetation base material is arranged in parallel between a thick mat made of plant fibers and a corrosive thin sheet or mesh, and the mat There is a vegetation mat in which a sheet or mesh body is fixed by a fastening member, and the sheet or mesh body is laid in contact with a slope (Patent Document 1).
Japanese Patent No. 2784760

  However, the vegetation mat according to the prior art described above is configured so that the water-soluble bag body filled with the vegetation base material is covered with a mat formed thickly with plant fibers. There is a drawback that the problem of not matching the time of the. In addition, a thick mat becomes an obstacle, and there is a drawback that the stem is not suitable for vegetation with weak plants. For this reason, it is necessary to respond to the mat by forming holes, cuttings, or slits for seed germination and rooting, and there is a disadvantage that the manufacturing cost increases.

Furthermore, since the vegetation base material is housed in a water-soluble bag, the bag quickly dissolves due to flooding, heavy rain, etc., and the vegetation base is thick and does not decompose quickly as described above. There is a drawback that the material flows out before rooting. Further, since the mat is formed thick, there is a disadvantage that the weight is increased, and therefore, there is a disadvantage that it is not portable.

  In addition, in order to eliminate the disruption of ecosystems due to alien species in recent years, there is a direction of breeding native species for slope planting, and for this purpose, the seeds of native species that come flying will be settled on the slope. There is a need for vegetation sheets that can be used. However, a vegetation sheet having such a function has not been proposed conventionally.

The present invention has been made in view of various disadvantages and unsolved problems of the prior art, and the vegetation base material can be fixed on the ground at an early stage. The upper net can be used to reliably propagate vegetation as well as to allow the native seeds to come to settle on the ground, since all of the vegetation base material will not flow out even in the event of flooding or long rain. Is intended to provide a vegetation sheet that is excellent in fixability because it protects without hindering germination and growth, and is excellent in workability and portability because it is lightweight.

  The invention according to claim 1 configured to solve the above-described problem includes a corrosive sheet body, a lower vegetation base layer formed by sticking a vegetation base to the lower surface of the sheet body, An intermediate vegetation base material layer formed by sticking a vegetation base material on the upper surface of the sheet main body, knitted with corrosive fibers, and placed on the intermediate vegetation base material layer at an appropriate position on the sheet main body It consists of the upper net attached by the connection material.

Moreover, the means which comprises the invention which concerns on Claim 2 are the corrosive sheet | seat main body, the lower side vegetation base material layer formed by sticking a vegetation base material to the lower surface of this sheet | seat main body, An intermediate vegetation base layer formed by sticking a vegetation base on the top surface and a vegetation base filled or pasted on a base made of a corrosive material and formed on the intermediate vegetation base layer A plurality of vegetation substrate bodies arranged at intervals and knitted from corrosive fibers, and are attached to the intermediate vegetation substrate layer from above the plurality of vegetation substrate bodies and connected to the sheet body at an appropriate position. It consists of an upper net attached by a material.

Further, the means constituting the invention according to claim 3 includes a corrosive sheet main body, a lower vegetation base material layer formed by sticking a vegetation base material to the lower surface of the sheet main body, and the sheet main body. An intermediate vegetation base material layer formed by sticking a vegetation base material on the upper surface, and a double weave covered with the intermediate vegetation base material layer and attached to the sheet body by a connecting material at an appropriate position. It consists of an upper net and a plurality of vegetation base bodies formed by filling or sticking a vegetation base on a base made of a corrosive material and inserted into the upper net at a predetermined interval.

And the said sheet | seat main body and / or upper net | network are good to use the straw formed with the rice straw.

  Further, the upper net may be formed by coarsely knitting a corrosive material having an appropriate thickness so that a large number of seed catching holes are formed vertically and horizontally.

In addition, the intermediate vegetation base material layer may have a lower dissolution rate than the lower vegetation base material layer.

Further, the vegetation base material may be formed by filling a vegetation base material into a base formed in a bag shape with melted paper mixed with cotton yarn.

  The vegetation base material may be formed by sticking a vegetation base material on one side of a dissolving paper mixed with cotton yarn or a degradable nonwoven fabric and winding it in a roll shape.

  Furthermore, the vegetation base material may be formed by sticking a vegetation base material on each surface of a plurality of sheets of dissolving paper or degradable nonwoven fabric mixed with cotton yarn, and winding the vegetation base material concentrically.

Since the present invention is configured as described in detail above, the following effects can be obtained.
(1) The vegetation sheet has excellent strength against flooding, flooding, frost heaving, landslide sliding, heavy rain, etc., because it has a double structure in which the sheet body with the vegetation substrate affixed to the lower and upper surfaces is covered with the upper net. In addition, the vegetation substrate can be firmly fixed on the ground.
(2) Since the vegetation base material is separated into the lower surface and the upper surface of the sheet main body and provided in two layers, the vegetation base material does not completely flow out due to flooding, heavy rain, etc., and vegetation can be reliably achieved.
(3) Since the sheet main body and / or the upper net are made of rice straw, they are excellent in heat retaining properties and are excellent in strength, so that the erosion phenomenon on the slope can be suppressed.
(4) Since the dissolution rate of the upper vegetation base layer is set slower than that of the lower vegetation base layer, even if the lower vegetation base flows out due to heavy rain or flood, It is possible to reliably vegetate on the ground by supplying the ground to the ground.
(5) Since the upper net has many seed catch holes formed vertically and horizontally, it can capture the native seeds that fly and protect the ground and plant the ground by native plants. This can maintain the ecosystem.
(6) Since the upper net has a seed catching hole, the sprouted plant can be stretched without being hindered, and the vegetation substrate can be protected until it settles on the ground.
(7) Since the vegetation base material is configured by filling the vegetation base into a bag-shaped base made of melted paper mixed with cotton yarn, the vegetation base is held until the cotton yarn is dissolved. The outflow of the substrate can be prevented as much as possible.
(8) The vegetation base material is formed by rolling a degradable non-woven fabric with a vegetation base material attached on one side, or by concentrating a plurality of degradable non-woven fabrics with a vegetation base material attached on one side. Since the vegetation base material is arranged in multiple layers via a non-woven fabric by winding it into a cylindrical shape, even if the vegetation base material is in the midst of germination, it is affected by flooding or heavy rain. It is possible to reliably prevent all of the base material from flowing out and rotting.
(9) Since the sheet main body and the upper net are lightweight, the vegetation sheet is excellent in workability and portability.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment. In the figure, reference numeral 1 denotes a sheet body made of cocoon made of corrosive rice straw and formed into a net shape. The sheet body 1 is formed in a substantially rectangular shape.

  Here, the rice straw of the rice bran was used for the sheet body 1 because the rice straw has a multi-layered skin in a concentric shape, so that it has excellent heat retention and has strength as a stem. This is because it is resistant to flooding and heavy rain and can suppress the erosion phenomenon on the slope.

Further, the sheet body 1 may be formed by knitting a net with a string in which fibers such as coconut, coconut and hemp are twisted together.

Reference numeral 2 denotes a lower vegetation base material layer provided on the lower surface 1A of the sheet body 1 and in contact with the ground. The lower vegetation base layer 2 is mainly composed of seeds and fertilizer, and a vegetation base 2A composed by adding a soil conditioner and a water retention agent thereto is sprayed with a water-soluble adhesive on the entire lower surface 1A of the sheet body 1. It is fixed in layers by attaching.

Reference numeral 3 denotes an intermediate vegetation base material layer provided on the upper surface 1B of the sheet body 1. The intermediate vegetation base material layer 3 is different from the lower vegetation base material layer 2 in that a fertilizer is added with a soil conditioner and a water retention agent and does not contain seeds. The vegetation base 3 </ b> A is fixed in layers by spraying a water-soluble adhesive on the sheet body 1.

Here, the water-soluble pressure-sensitive adhesive used for fixing the intermediate vegetation base material layer 3 is mixed with an adhesive so that the dissolution rate is about 5 to 7 days than the water-soluble pressure-sensitive adhesive used for fixing the lower vegetation base material layer 2. It is set late. By comprising in this way, even when the lower vegetation base material 2A is supplied to the ground in a state that is unpreferable for germination due to excessive water due to heavy rain, flooding, frost, etc., the intermediate vegetation base material 3A is 5 to 5. By being supplied with a delay of 7 days, the seeds of the native species can be fixed on the ground in a good state.

  Reference numeral 4 denotes an upper net entirely covered on the intermediate vegetation base material layer 3. The upper net 4 is formed by twisting fibers such as coconut, coconut and hemp to form a string having a thickness of about 5 mm, or corrosive materials 5 and 6 having an appropriate thickness such as rice straw. It consists of a material that is roughly knitted into a single weave. By using thick materials 5 and 6, a large number of seed catching holes 4A, 4A,... Yes. The upper net 4 is covered with the intermediate vegetation base material layer 3 in the vertical and horizontal four sides 4B and 4C and at appropriate positions on the inner side by the connecting materials 7, 7,... The seat body 1 is engaged and integrated.

According to the present embodiment, the vegetation base material layer 2 is formed on the lower surface 1A of the sheet body 1, the vegetation base material layer 3 is formed also on the upper surface 1B, and the entire upper surface thereof is covered with the upper net 4. Because of the construction, the vegetation sheet has excellent strength against flooding, flooding, frost heave, landslide and heavy rain. Moreover, since the vegetation base material layers 2 and 3 are formed on the upper and lower surfaces 1A and 1B of the sheet body 1, it is possible to avoid a situation in which all of the vegetation base materials 2A and 3A flow out even if there is a flood. The vegetation base 2A (3A) can be firmly fixed and germinated and grown.

  In addition, according to the present embodiment, the upper net 4 has a large number of seed catching hole portions 4A, 4A,. 4A can be captured. For this reason, the intermediate vegetation base 3A is composed of a fertilizer, a soil conditioner, and a water retention agent without blending seeds, thereby germinating and growing native species of plants.

Next, FIGS. 4 and 5 show a second embodiment. In the constituent elements of the present embodiment and other embodiments described later, the same constituent elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. . In the figure, 11, 11,... Are a plurality of vegetation substrate bodies arranged at appropriate intervals on the intermediate vegetation substrate layer 3, and the vegetation substrate body 11 is made of coconut, coconut, hemp, rice straw, etc. It consists of a corrosive bag 11A formed by knitting and filled with a vegetation base 11B composed of a fertilizer, a soil conditioner and a water retention agent. Depending on the construction site, seeds may be blended with the vegetation base 11B.

  The plurality of vegetation base materials 11, 11,... Described above are arranged on the intermediate vegetation base material 3 at an appropriate interval, and the upper net 4 is put on the intermediate vegetation base material 3. 7... Are integrally attached to the sheet body 1 by 7.

  According to the present embodiment having the above-described configuration, a plurality of vegetation substrate bodies 11 are disposed between the sheet body 1 and the upper net 4 in addition to the intermediate vegetation substrate layer 3. It is possible to reliably establish and grow vegetation on slopes, etc., and to plant trees.

  Further, FIGS. 6 and 7 show a third embodiment. In the figure, 21 indicates an upper net. The upper net 21 is knitted into a double weave consisting of a lower net portion 21A and an upper net portion 21B by a corrosive material used for the sheet body 1, such as coconut, coconut, hemp, rice straw, etc. A seed catching recess (not shown) is formed.

22, 22,... Indicate a plurality of vegetation base materials inserted between the lower net portion 21 </ b> A and the upper net portion 21 </ b> B in a state of being separated from each other. Each vegetation base body 22 is similar to the vegetation base body 11 in the second embodiment, in which a seed and a seed are contained in a corrosive bag 22A formed by knitting fibers such as coconut, coconut, hemp, and rice straw. It consists mainly of fertilizer, filled with a vegetation base material 22B composed by adding a soil conditioner and water retention agent.

According to the present embodiment configured as described above, the vegetation base body 22 is reliably combined with the upper net 21 by inserting the vegetation base body 22 into the upper net 21 knitted into a double weave. Therefore, it is possible to reliably prevent the vegetation base material body 22 from flowing out due to heavy rain or the like. Moreover, since the upper net 21 is knitted into a double weave, it has excellent strength, and is suitable for laying on a slope or the like where there is momentum in running water on a steep slope.

  Note that the corrosive bag 11A (22A) constituting the vegetation base material 11 (22) may be formed of melted paper mixed with cotton yarn. By comprising in this way, the cotton yarn hold | maintains the vegetation base material 11B (22B) until it melt | dissolves, the flow out is prevented as much as possible, and the situation where the vegetation base material 11B (22B) flows out completely. Can be prevented.

  In the second and third embodiments, the vegetation substrate 11 (22) is configured by filling the vegetation substrate 11B (22B) into the bag 11A (22A), which is the substrate, as shown in FIG. As described above, the vegetation base material 31 has a vegetation base material 33 attached to each surface 32A of each of a plurality of degradable nonwoven fabrics 32, 32,... As a base material, and these are concentrically wound to form a cylindrical shape. It may be formed. Alternatively, as shown in FIG. 9, the vegetation base material 41 may be formed in a roll shape by sticking the vegetation base material 43 to one surface 42A of the degradable nonwoven fabric 42 as a base and winding it.

Since the vegetation base material 31 (41) configured in this way is held in multiple layers by the vegetation base material 33 (43) via the non-woven fabric 32 (42), all of them even when there is flooding or heavy rain. It is possible to reliably prevent the vegetation base material 33 (43) from flowing out.

1 to 3 relate to a first embodiment of the present invention, and FIG. 1 is an exploded perspective view of a vegetation sheet. It is a longitudinal cross-sectional view of a vegetation sheet. It is a partial expansion perspective view of an upper side net. 4 and 5 relate to the second embodiment of the present invention, and FIG. 4 is an exploded perspective view of the vegetation sheet. It is a longitudinal cross-sectional view of a vegetation sheet. 6 and 7 relate to a third embodiment of the present invention, and FIG. 6 is an exploded perspective view of a vegetation sheet. It is a longitudinal cross-sectional view of a vegetation sheet. It is a cross-sectional view which shows the vegetation base material body of another structure. It is a cross-sectional view which shows the vegetation base material body of another structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet | seat main body 1A Lower surface 1B Upper surface 2 Lower vegetation base material layer 3 Intermediate vegetation base material layer 4 Upper net 4A Seed capture hole part 7 Connecting material 11, 22, 31, 41 Vegetation base material 11A, 22A Bag (base | substrate)
2A, 3A, 11B, 22B, 33, 43 Vegetation base materials 32, 42 Non-woven fabric (substrate)

Claims (9)

  Corrosive sheet main body, lower vegetation base material layer formed by sticking a vegetation base material to the lower surface of the sheet main body, and intermediate formed by sticking a vegetation base material to the upper surface of the sheet main body A vegetation sheet comprising a vegetation base layer and an upper net that is knitted with corrosive fibers, is covered on the intermediate vegetation base layer, and is attached to the sheet body by a connecting material at an appropriate position. Corrosive sheet main body, lower vegetation base material layer formed by sticking a vegetation base material to the lower surface of the sheet main body, and intermediate formed by sticking a vegetation base material to the upper surface of the sheet main body A plurality of vegetation substrate bodies formed by filling or pasting a vegetation substrate layer on a substrate made of a corrosive material and pasting the vegetation substrate layer at predetermined intervals on the intermediate vegetation substrate layer; A vegetation formed of a plurality of vegetation substrate bodies, an upper net attached to the intermediate vegetation substrate layer from above the plurality of vegetation substrate bodies, and attached to the sheet body by a connecting material at an appropriate position. Sheet. Corrosive sheet main body, lower vegetation base material layer formed by sticking a vegetation base material to the lower surface of the sheet main body, and intermediate formed by sticking a vegetation base material to the upper surface of the sheet main body A vegetation base layer, a double weaving upper net that is covered on the intermediate vegetation base layer and is attached to the sheet body by a connecting material at an appropriate position, and a base made of a corrosive material A vegetation sheet comprising a plurality of vegetation base materials that are formed by filling or sticking and are inserted into the upper net at a predetermined interval.   The vegetation sheet according to claim 1, wherein the sheet main body and / or the upper net is a straw formed of rice straw.   The vegetation sheet according to claim 1, 2 or 3, wherein the upper net is formed by roughly knitting a corrosive material having an appropriate thickness so that a large number of seed catching holes are formed vertically and horizontally. . The vegetation sheet according to claim 1, 2 or 3, wherein the intermediate vegetation base material layer has a slower dissolution rate than the lower vegetation base material layer.   The vegetation sheet according to claim 2 or 3, wherein the vegetation base material is a vegetation base filled in a bag formed of melted paper mixed with cotton yarn.   The vegetation sheet according to claim 2 or 3, wherein the vegetation base material is formed by sticking a vegetation base material on one surface of a dissolving paper or degradable nonwoven fabric mixed with cotton yarn and winding it in a roll shape.   4. The vegetation base material is formed by sticking a vegetation base material on each surface of a plurality of sheets of dissolving paper or degradable nonwoven fabric mixed with cotton yarn and winding them concentrically. Vegetation sheet.

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