JPH0571127A - Vegetation net - Google Patents

Abstract

PURPOSE:To make a lower net adhere closely to the surface of slope to steadily hold a sprayed vegetation base material. CONSTITUTION:Knots 4, 5 between an upper net 2 and a lower net 3 are severally formed in a square knot, and the knot 4 of the upper net 2 is made larger than the knot 5 of the lower net 3, and sides forming the knots 4, 5 of both the nets 2, 3 are mutually paralleled. In addition, both the nets 2, 3 are joined continuously at the right and left ends and partially at a middle part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation net used for, for example, a slope greening method, and more particularly to a vegetation net having a double structure composed of an upper net and a lower net.

[0002]

2. Description of the Related Art As one of the slope greening methods, a vegetation net is laid on the slope to be constructed and plant seeds are placed on it.
A method of spraying a vegetation base material, which is a mixture of fertilizer, soil conditioner, water retention agent, and other fertilizer base materials that are directly or indirectly necessary for plant growth, with a spraying machine using a mini cleat pump. is there.

However, the above conventional vegetation net is
Since it was a so-called single sheet, it was difficult to spray the vegetation base material too thick, and the effect of preventing erosion and rockfall on the slope was small.

Therefore, in the case of thickly spraying the vegetation base material or preventing erosion or rockfall on the slope, a so-called double structure vegetation net has been used. Fig. 5 shows a conventional vegetation net with a double structure.
30 shows this vegetation net 30, while using a net 32 of Russell knitted square mesh 31 as the upper net,
Knitted by a fishnet knitting machine as the lower net, upper net 32
A net 34 having a diamond-shaped mesh 33 smaller than the mesh 31 is used, and both nets 32, 34 are continuously connected at the upper and lower end portions and the left and right end portions.

[0005]

However, the vegetation net 30 having the above-mentioned conventional structure has the following drawbacks. That is, as shown in FIG. 6, the lower net 34 is sloped.
When it is laid on the slope 35 so that it is close to the 35, the threads come close to each other in the direction in which the diamond-shaped mesh 33 becomes smaller, and it is difficult to tension along the slope 35. This tendency becomes stronger, and even if the vegetation base material 36 is sprayed from above the vegetation net 30, the vegetation base material 36
Is hard to reach the slope 35, and it is difficult to adhere to the slope 35.

Further, in the conventional vegetation net 30 described above, since the end edges of both nets 32, 34 are simply joined together, the lower net 30 is sloped due to the weight of the vegetation base material 36 sprayed. It is difficult to reliably hold the vegetation base material 36 because it has moved on the surface 35. That is, in the conventional vegetation net 30, the adhesion to the slope 35 is poor, and it is difficult to stably hold the sprayed vegetation base material 36. It was difficult to grow.

The present invention has been made in consideration of the above matters, and an object of the present invention is to attach a lower vegetation to a slope and keep a sprayed vegetation base material stably. It is to provide the net.

[0008]

In order to achieve the above object, in the present invention, in a vegetation net having a double structure consisting of an upper net and a lower net, the meshes of the upper net and the lower net are angled respectively. In addition, the mesh of the upper net is larger than that of the lower net, and the sides that make up the mesh of both nets are parallel to each other. Therefore, the intermediate part is partially bonded.

In this case, the ratio of the meshes on the upper net and the meshes on the lower net is 2: 1 in both the vertical and horizontal directions.
You can

[0010]

In the vegetation net having the above structure, the upper and lower nets have square meshes, and in particular, the lower net has square meshes. Therefore, when laid on a slope, even if the slope has an uneven surface, Stick to the surface. The upper and lower nets are partially joined in the middle part. Therefore, when the vegetation base material is sprayed onto the slope surface from above such a vegetation net, the vegetation base material surely reaches the slope surface and is stably held on the slope surface.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention. In FIGS. 1 and 2, 1 is a vegetation net according to the present invention, which is composed of an upper net 2 and a lower net 3. The meshes 4 of the upper net 2 are square meshes, and the size thereof is, for example, about 2.0 to 6.0 cm on each side. Moreover, the mesh 5 of the lower net 3 is also a square mesh, and its size is, for example, 1.0 to 1.0 on each side.
It is about 3.0 cm. In this embodiment, the upper net 2
Mouth 4 of 4.0 cm square, and lower net 3 of mesh 5
Is 2.0 cm square. That is, the ratio of the meshes 4 in the upper net 2 to the meshes 5 in the lower net 3 is 2: 1 in both the vertical and horizontal directions.

These upper net 2 and lower net 3 are
A monofilament or a flat yarn made of polyethylene or polypropylene, or both the monofilament and the flat yarn are knitted into a predetermined shape by a Russell loom, respectively.

In order to form a vegetation net 1 having a double structure by using the upper net 2 and the lower net 3 as described above, the upper net 2 and the lower net 3 are connected to each other by the meshes 4, 4. 5 are overlapped so that the sides forming 5 are parallel to each other. The left and right ends of both nets 2 and 3 indicated by reference characters A and B in FIG. 1 are continuously connected to each other, and the intermediate parts are connected at intervals of 1 m, for example. In FIG. 1, 6 is a connecting point. Further, 7 is a reinforcing rope, which is provided at the left and right ends and the central part of the vegetation net 1.

Next, in order to green the slope using the vegetation net 1 having the above-described structure, first, the vegetation net 1 is replaced with the lower net 3
Is laid so as to be close to the slope 8 and the reinforcing rope 7 is arranged along the vertical direction of the slope 8. In this case, the vegetation net 1 has upper and lower nets 2 and 3 with square meshes,
In particular, since the lower net 3 has a square mesh, even if the slope 8 has undulations, it is in close contact with the surface. The upper and lower nets 2 and 3 are partially joined in the middle part. Therefore, from above such a vegetation net 1, using a spraying machine using a mini cleat pump, and plant seeds,
When the vegetation base material 9 formed by stirring and mixing a fertilizer base material such as a fertilizer, a soil conditioner, and a water retention agent, which is directly or indirectly required for plant growth, is sprayed onto the slope 8, the vegetation base material 9 Is reliably reached on the slope 8 and is stably held on the slope 9.

In the vegetation net 1, if the upper and lower nets 2 and 3 are square meshes, the vegetation base material 9 easily reaches the slope 9 through the meshes 4 and 5, and the vegetation base material 9
Can be easily sprayed.

Further, as in the above embodiment, when the ratio of the mesh 4 in the upper net 2 to the mesh 5 in the lower net 3 is set to 2: 1 in both the longitudinal direction and the lateral direction, the reinforcing rope 7 and The accommodating portion can be formed in the vegetation net 1 in a direction orthogonal to each other, that is, along the contour line of the slope 9.
A vegetation bag in which the same vegetation substrate as the vegetation substrate 9 is packed can be housed and held in the housing portion.

FIG. 4 shows a vegetation net 10 according to another embodiment of the present invention, in which 11 is an upper net,
12 is the lower net. And in this embodiment,
The lower net 12 has the same structure as the lower net 3 in the first embodiment described above, but the upper net 11 has a housing portion 13 for housing the vegetation bag.

That is, a monofilament made of polyethylene or polypropylene having a denier of about 400 to 1000 denier is used as the warp 14, and a tape-shaped flat yarn made of polyethylene or polypropylene having a denier of about 1000 to 3000 denier is used as the weft 15.
Weft 14 and weft 15 on the respective loom, and weft spacing 3 to 9
The upper net 11 is knitted or woven by plain weaving or entwining weaving with a large number of two or more warp yarns 14 every 10 to 100 mm in the transverse direction. In this case, if the width of the weft yarn 15 is large, the number of shots per inch may be reduced, and if it is small, it may be increased. Further, as the weft thread 15, a wide weft thread folded a plurality of times to be narrowed may be used.

Next, after weaving to a suitable length in the longitudinal direction (for example, about 20 to 80 cm), about half of the warp yarns 14 forming the upper net 11 are released from the weft yarns 15, and the released warp yarns 14 ' The same number of weft yarns 15 '(3 to 9 yarns / inch) as the net 11 is driven and knitted. After providing the front and back double-separated portions 12 of, for example, about 3 to 10 cm, the single upper net 11 is restored. By repeating this, the partially double reticulated body is completed.

Also for the upper net 11 and the lower net 12 as described above, the nets 11 and 12 are overlapped so that the sides forming the mesh are parallel to each other, and the left and right ends of the nets 11 and 12 are mutually overlapped. It joins continuously and joins partly in the middle part. The vegetation net 10 in this embodiment also has the same effects as in the first embodiment.

The vegetation base material 9 is sprayed onto the slope 8 as follows.
A method suitable for the type of the vegetation base material 9 and the condition of the slope 8 may be used. A dry spraying machine using a mortar gunki or a blower,
Hydroseeder or the like can be used as appropriate.

[0023]

As described above, in the vegetation net according to the present invention, the upper and lower nets have square meshes, and in particular, the lower net has square meshes, so that the slope is uneven. Also firmly adheres to the surface. The upper and lower nets are partially joined in the middle part. Therefore, when a vegetation base material is sprayed onto the slope using a spraying machine using a mini cleat pump from above such a vegetation net, the vegetation base material surely reaches the slope. At the same time, it is stably held on the slope. As a result, the plant germinates from the vegetation base material that is in close contact with the slope, and the plant can grow well.

According to the vegetation net of the present invention,
The vegetation base material surely reaches the slope through the square meshes, and the spraying work is easy accordingly.

[Brief description of drawings]

FIG. 1 is a plan view showing a vegetation net according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an enlarged view of the vegetation net.

FIG. 3 is a cross-sectional view showing a greening method using the vegetation net.

FIG. 4 is a perspective view showing a vegetation net according to the first embodiment of the present invention.

FIG. 5 is an exploded perspective view showing an enlarged conventional vegetation net.

FIG. 6 is a cross-sectional view showing a conventional greening method using a vegetation net.

[Explanation of symbols]

1,10… Vegetation net, 2,11… Top net, 3,12… Bottom net, 4,5… Match.

Claims (2)

[Claims] 1. In a vegetation net having a double structure consisting of an upper net and a lower net, the meshes of the upper net and the lower net are angular meshes, and the mesh of the upper net is smaller than that of the lower net. Is also large, and the sides that make up the mesh in both nets are parallel to each other,
Furthermore, both nets are continuously connected at the left and right ends.
A vegetation net characterized by being partially joined in the middle part. 2. The vegetation net according to claim 1, wherein the ratio of the meshes of the upper net and the meshes of the lower net is 2: 1 in both the vertical and horizontal directions.