JPH0517905A - Ground maintaining material - Google Patents

Abstract

PURPOSE:To keep the surface of a playground or the like soft and permeable and to vegetate a lawn in the above protected state as occasion demands. CONSTITUTION:Plural tread pressure projecting stripes 2 are risingly provided in a latticed pattern on a basic plate 1 which is square in looking at them from above, and inside each lattice, the basic plate 1 is provided with four permeating openings 3 to pass through both the sides of the basic plate 1, and nine tread pressure projections 4 are risingly provided between the permeating openings 3 so as to be somewhat higher than the tread pressure projecting stripes 2. The two adjacent sides of the basic plate 1 are extendingly provided with female connecting plates 5, on which plural connecting holes 6 are drilledly provided. In addition to that, the two other sides of the basic plate 1 are extendingly provided with male connecting plates 7, on which connecting projections 8 corresponding to the connecting holes 6 are risingly provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground improvement material used for improving the ground of an amusement park, a park, a playground, a schoolyard, or other plazas.

[0002]

2. Description of the Related Art Recently, asphalt and the like have been increasingly used in the park, including promenades and plazas.
In addition, artificial turf ball fields, etc. have been created in place of turf. As for artificial turf, there is also a technique in which the base of the turf is buried relatively deeply and sand is filled between the turf that has been planted so that the turf is out of the sand. Further, in the technique proposed by the present inventor, "a large number of upright tubular water-permeable protrusions arranged so as to be uniformly distributed, a connecting member for connecting adjacent tubular water-permeable protrusions, and a connecting member Land maintenance material composed of tread distortion projections installed upright on the ground, and all of the above components made of elastic material (Jitsuko 61-36563) "
And “a large number of upright tubular water-permeable protrusions arranged so as to be uniformly distributed, a skeleton frame for connecting and holding the adjacent tubular water-permeable protrusions, a movable arm branched from the skeleton frame, and a vertical arm. There is a land maintenance material (Jpn. Pat. Appln. KOKAI Sho 62-9361), which is composed of a treading pressure raising / lowering protrusion having a height higher than that of the provided cylindrical water-permeable protrusion, and all of the above members are integrally formed by an elastic material.

[0003]

[Problems to be Solved by the Invention] In open spaces such as asphalt, people cannot touch the soil, and it is inappropriate to take a walk or exercise on it. Further, the artificial turf as described above attempts to give a slightly natural atmosphere, but is not yet natural and insufficient.
Furthermore, the above-mentioned two technologies proposed by the present inventor should be said to be very excellent in that the land is not solidified and the water permeability is maintained. Since the upper end is located on or near the ground surface, it may not be suitable for playgrounds, etc. and it is difficult to say that the structure is not always sufficient for heavy objects such as automobiles. . The present invention is intended to solve such problems, and more specifically, it holds the ground and other ground surfaces at an appropriate hardness to ensure water permeability, and if necessary, The purpose is to make it possible to grow lawn vegetation in a protected state.

[0004]

The gist of the structure of the present invention is that a plurality of tread pressure ridges connected to each other at any part on the substrate and those located between the tread pressure ridges. A ground maintenance material in which a plurality of higher stepped strain protrusions are arranged, and a plurality of water-permeable openings vertically penetrating the substrate are formed.

Specifically, it is appropriate that the tread pressure ridges are formed in a lattice shape or a mesh shape when seen from a plane. That is, the plurality of tread ridges are thus connected to each other in a manner corresponding to the shape viewed from the above plane, and a section, that is, a section by a lattice or a mesh is formed. Specifically, the tread distortion protrusion is formed by standing up from the substrate in the compartment. The diameter of the step strain protrusion and the width of the step pressure ridge are substantially the same. Of course, it is not limited to that. Further, the water permeable opening is also formed by penetrating the substrate through the front and back in the compartment.
Furthermore, it is suitable to form a male and female connecting means for connecting adjacent ones to each other around the substrate. Its structure is completely free.

[0006]

Since the present invention is constructed as described above, it can be used as follows. Two typical usage examples will be described. First, in the target area (such as a playground), the tops of the tread distortion projections are buried while matching the ground surface. Substrates of adjacent ground maintenance materials are mutually connected.
They are buried while being connected by these connecting means. Specifically, the target area is slightly dug down, and in the dug down area, the female and male connecting means are connected to each other, and if no connecting means is provided, the peripheral sides are abutted against each other. . After that, the tops of the step strain projections are backfilled so that they coincide with the ground surface. When the ground surface has fallen after one or two days, it is suitable to further add soil or sand so that the ground surface and the tops of the step strain projections are aligned with each other.

[0007] The other is to dig a little into the target area, and in the same manner as above, lay a ground maintenance material in the digged area, and backfill it, and to the extent that the top of the tread distortion projection is slightly exposed Then, the topsoil is slightly scraped off, a lawn is stretched over the top soil, and the top surface of the lawn is almost aligned with the top of the stepped strain projection by rolling. Or, by laying a ground maintenance material, backfilling until the top of the step strain protrusion coincides with the ground surface, after about a day, when the ground surface slightly descends, sow the seeds of lawn from above, Add missing soil to match the top of the tread distortion projection with the ground surface. Alternatively, when the ground surface slightly descends after the passage of about one day, soil mixed with grass seeds is added to make the tops of the tread distortion projections coincide with the ground surface.

In the former case, however, when a person walks or runs on it, the tread distortion projection sways,
The topsoil is not unduly compacted, and it is possible to maintain appropriate hardness and softness. This is also the case, and since this ground maintenance material has a water-permeable opening, rainwater and the like can easily penetrate into the soil, and can penetrate deeper underground further through the water-permeable opening. Is. In addition, when a heavy vehicle or the like moves in the area where it is installed, the tread ridge receives this and prevents solidification of the topsoil.

In the latter case, the same action is achieved, but at the same time, the lawn is protected from the depression of the person and the like, and it becomes possible to construct a lawn playground or the like.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a plurality of tread pressure projections 2, 2, ... The outermost pedal depression ridges 2, 2, ... Are located exactly along the four sides of the substrate 1. In each of the lattices formed by the plurality of tread ridges 2, 2, ..., Four water-permeable openings 3, 3 ... , The nine pedal strain protrusions 4, 4, ... Are erected vertically and horizontally. The heights of the pedal strain protrusions 4, 4, ... Are slightly higher than those of the pedal pressure protrusions 2, 2 ,. Further, on the two sides adjacent to each other with the corner portion of the substrate 1 sandwiched therebetween, connecting female plates 5 and 5 having an upper half thickness are extended to the upper half in the thickness direction of the substrate 1, and a plurality of connecting holes 6 are provided respectively. 6 is drilled. In addition, the substrate 1 is provided on the other two adjacent sides of the substrate 1.
Connection male plates 7 having the same thickness are projected from the lower half of the upper part, and connection protrusions 8, 8 are provided upright corresponding to the connection holes 6, 6. The above substrate 1 and all other components are integrally molded of elastic plastic.

Next, an outline of the dimensions of the ground maintenance material of this embodiment will be shown. The length of one side of the substrate 1 is about 304 mm. The distance between the centers of the grid-shaped tread ridges 2, 2 is about 100 mm. The width of the tread ridge 2 is about 4 mm and the height is about 15 mm. Further, the diameter of the step distortion protrusion 4 is about 4 mm, and the height thereof is about 20 mm. The tread distortion protrusions 4, 4 ...
More than just 5mm higher.

Since this embodiment is constructed as described above, it can be used as follows. Two typical usage examples will be described below. First, a first usage example will be described. An example of this is the preparation of the ground for a playground. The target playground region was dug down to a depth corresponding to the height from the bottom surface of the substrate 1 to the tops of the step strain projections 4, 4, ..., And a plurality of substrates 1, 1 ,. Try to cover the entire area. At that time, the adjacent boards 1 and 1 are overlapped with the connection female board 5 of the other board 1 on the connection male board 7 of the one board 1, and the former connection projections 8, 8 ...
6 is connected to be fitted. After this, as shown in FIG. 3, the tops of the step strain projections 4, 4, ...
Backfill to match. When the ground surface 9 descends after a few days, it is appropriate to add more soil or sand so that the ground surface 9 and the tops of the tread distortion projections 4, 4, ... Align. Is.

In this case, however, when a person walks or runs on it, the treading protrusion causes the tread distortion protrusion to swing, so that the topsoil will not be unduly treaded, and a suitable amount will be obtained. The softness can be maintained.
Further, since it is not compacted in this way and the water-permeable openings 3, 3, ... Are opened in the substrate 1, rainwater and the like easily permeate into the ground, and further penetrate through the water-permeable openings 3, 3 ,. It can penetrate deep underground. In addition, when a heavy truck or the like moves on the playground where this is installed, the tread treads 2, 2 ... Receive this and distribute the weight to the many ground maintenance materials to be connected. It is possible to prevent solidification.

Next, a second use example will be described. This example is an example of maintenance of a playground in which the lawn 10 is vegetated. First, the target area is dug down to the same depth as in the first use example, and the ground maintenance material is laid all over the dug area. The connection between the adjacent substrates 1 and 1 is of course the same as described in the first use example. After that, the tops of the step strain protrusions 4, 4, ... Are backfilled to the extent that they coincide with the ground surface. About one day later, when the ground surface 9 slightly descended, the soil mixed with the seeds of the lawn 10 was applied on the ground surface 9 and the above-mentioned step distortion projections 4, 4 were just added.
Leave the top of ... buried in the soil.

In the case of this example, if the lawn 10 grows,
A playground in which the lawn 10 is vegetated is completed, and the lawn 10 is protected from the treading pressure of a person by the tread distortion protrusions 4, 4 ... and the tread pressure ridges 2, 2 ,. There is no. Further, the tread distortion protrusions 4, 4 ... and the tread pressure ridges 2, 2, ... Are covered with soil, and the shallower tread distortion protrusions 4, 4, ... There is no need to worry about the person doing this as a protrusion and injured. Further, it goes without saying that the same operational effect as that of the first use example is provided.

[0016]

EFFECTS OF THE INVENTION According to the present invention, it is possible to avoid solidification of the ground or other ground surface by trampling, maintain proper flexibility to ensure water permeability, and, if necessary, plant lawn in a protected state. If possible, it is a thing.

[Brief description of drawings]

1 is a schematic plan view. 2 is a schematic cross-sectional view taken along the line AA of FIG. 3 is a schematic sectional view of the state of being buried in the playing field. FIG. 4 is a schematic cross-sectional view of a state where the lawn is vegetated by being buried in the playing field.

[Explanation of symbols]

1 substrate 2 tread pressure ridge 3 water permeable opening 4 step distortion protrusion 5 connection female plate 6 connection holes 7 connection male plate 8 connection protrusion 9 Ground surface 10 lawn

Claims (2)

[Claims] 1. A plurality of tread pressure projections, which are connected to each other at any portion, and a plurality of tread distortion projections, which are located between the tread pressure projections and have a height higher than those of the tread pressure projections, are provided on a substrate. In addition, a ground maintenance material in which a plurality of water-permeable openings penetrating vertically are formed in the substrate. 2. The ground maintenance material according to claim 1, wherein male and female connecting means for connecting adjacent ones to each other are formed around the substrate.