JP2003105709A - Surface structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface structure free from dusting, good to drain and hard to solidify. SOLUTION: The surface structure 1 on which people walk or exercise comprises lower layer roadbeds 2, 3, a base mat 4 arranged on the lower layer roadbeds 2, 3 and having a base surface 5 containing a pile portion 6 consisting of a number of elastic rising elements having water permeable micropores but being hardly permeable to predetermined-size particles and rising from the base surface 5 up to a given height in accordance with a regularly certain pattern, and a predetermined-size particle material such as garnet sand 7 filled in the base mat 4 in a range to a top surface 8 of the base mat 4. The elastic rising elements 6 improve the cushioning performance of the base mat 4 and give oscillation to the particle material 7 therearound each time they are stepped on and deflected, to prevent the solidification thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface structure on which a person walks or moves. In particular, it relates to the surface structure of clay-based courts in tennis courts.

[0002]

2. Description of the Related Art As a conventional clay-based surface,
There are pure clay surface and artificial grass surface with sand.

[0003]

In the case of a pure clay type surface, there is a problem of dust generation and poor drainage,
In particular, there is a problem that the surface is easily solidified, and when solidified, the drainage becomes worse.

Further, in the artificial grass containing sand, conventionally, the sand to be filled is mainly silica sand, and it gradually breaks into fine particles and is worn away, and the fine sand is easy to harden, and therefore hardened regularly. Maintenance work was needed to loosen the sand.

Therefore, an object of the present invention is to obtain a surface structure which is free from the problem of dust generation, is well drained, and is hard to be solidified.

[0006]

To achieve this object, in a clay-based surface structure according to the first aspect of the present invention, there is provided a lower base course and a base mat arranged on the lower base course, A base mat having water-permeable fine pores, but having difficulty in permeating particles of a predetermined particle size, and having a large number of elastic uprighting elements standing up to a predetermined height from the base surface in a regular predetermined pattern, and the top of this base mat It is characterized in that it is made of the granular material having the predetermined particle size, the surface of which is filled in the base mat.

According to the present invention, a granular material, preferably up to the top surface of the base mat, which is defined by the height of the elastic upright elements, is provided in the space between the plurality of elastic upright elements rising from the bottom surface according to a regular predetermined pattern. A crystalline garnet sand, that is, so-called garnet fine particles is filled to form a clay-based surface. The large number of elastic upright elements act as a cushion (cushion) for a pedestrian or player, and when the pedestrian or player is stepped on, the particles of the granular material oscillate by flexing, so that the solid material of the granular material is hard to solidify. Prevent binding. Urethane chips can also be used as the granular material.

In a preferred embodiment of the present invention, the base mat is a three-dimensional woven body three-dimensionally woven with flexible filaments of synthetic resin, and the three-dimensional woven body is
A base network surface having a finely textured texture pattern, a plurality of pile portions as elastic standing elements standing upright from the base network surface to a predetermined height along the texture pattern, and the base network by the pile portions. A top network surface connected to the surface and having a texture pattern of a texture equal to or greater than the texture of the base network surface.

Further, in another preferred embodiment of the present invention, the base mat is a rubber molded body, and the rubber molded body has a base surface having water-permeable slits and a regular predetermined pattern from the base surface. Accordingly, a large number of frustoconical elastic uprighting elements that stand up to a predetermined height are provided. In this embodiment, it is preferable that the frustoconical elastic upright element has a first elastic upright element having a top surface and a second elastic upright element having a top surface at a level lower than the top surface. The base surface is integrally molded with a predetermined pattern.

Further, the second invention of the present invention is characterized in that, in the surface structure of the artificial grass containing sand, the sand to be spread inside the artificial grass is garnet sand.

Garnet sand is inexpensive if natural sand is used, and it is hard to be injured like a conventional clay-based surface or artificial sand containing sand even if it falls down because it is washed and rounded by waves. A sliding property advantageous for a sliding shot can be obtained. Furthermore, since garnet sand has a large specific gravity, dust is unlikely to occur. Furthermore, unlike the conventional sand filled in artificial turf, it is not finely cracked or abraded, so that dusting and solidification caused by the finely divided one does not occur.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings.

In the surface structure 1 according to the present invention, the lower layer roadbed is subjected to at least water permeation treatment and, if possible, cushioning treatment. In the embodiment shown in FIG. 1, this lower layer roadbed is composed of a crushed stone layer 2 and a rubber chip layer 3 which is an upper layer of this crushed stone layer 2. However, the rubber chip layer 3 does not necessarily have to be provided. According to the surface structure 1 of the present invention, the base mat 4 is arranged on the lower layer roadbeds 2, 3.

The base mat 4 according to the present invention has a base surface 5 having fine pores (not shown) for water permeation but not allowing particles of a predetermined particle size to pass through, and a predetermined height from the base surface 5 according to a regular predetermined pattern. It has a large number of elastic standing elements 6 that stand up to that point. Further, the base mat 4 is filled with a granular material 7 having a predetermined grain size, such as urethane chips or preferably garnet sand, up to the top surface of the base mat 4.

In the embodiment as the first embodiment shown in FIG. 1, the base mat 4 is a three-dimensional woven body three-dimensionally woven with flexible filaments of synthetic resin, and this three-dimensional woven body is fine. It has a base network surface 5 having a smooth texture pattern (the network shape of this base network surface 5 is not visible in FIG. 1).

From the base network surface 5 of the three-dimensional woven body, there are a large number of pile portions 6 as elastic standing elements which stand up to a predetermined height along the weave pattern. A top network surface 8 having a texture pattern equal to or greater than the texture is connected to the base network surface 5. The space between the pile portions 6 is filled with the granular material 7 up to the top network surface 8.

In the embodiment shown in FIG. 1, the granular material 7 may leak to the lower layer through the interstices of the texture of the base network surface 5, but if the amount of the granular material 7 filled in the base mat 4 decreases. It is visually visible and can be replenished at the appropriate time.

[0018]

FIG. 2 shows another embodiment of the present invention. In the surface structure 1A of this embodiment, the base mat 4A disposed on the lower layer roadbed A is made of a rubber molding.
The base mat 4A of the rubber molded body is composed of a base surface 5A having a water-permeable slit formed therein and a large number of truncated cone-shaped elastic upright elements 6A which stand up to a predetermined height from the base surface 5A in a regular predetermined pattern. To do. In the case of this base mat 4A, the voids are filled with the granular material 7 up to the truncated cone-shaped top surface 9 of the elastic rising element 6A.

In the embodiment shown in FIG. 2, the frustoconical elastic upright element 6 has a level lower than this top surface 9 in addition to the frustoconical first elastic upright element 6A having a top surface 9. And the second elastic upright elements 11 having a truncated cone shape having a top surface 10 are formed integrally with the base surface 5A in a regular predetermined pattern, for example, alternately arranged or staggered.

Further, although not shown, in the second aspect of the present invention, garnet sand is spread inside the artificial sand containing sand.

[0021]

According to the first aspect of the present invention, the base mat has a granular shape of a predetermined particle size from the bottom surface to the top surface of the base mat having a large number of elastic upright elements that stand up to a predetermined height in a regular predetermined pattern. Filled with material,
Cushioning can be improved by the elastic upright element of the base mat, lightening the load on the legs and waist of pedestrians or players, and rocking the surrounding granular material each time it is stepped on and flexes to prevent solidification. To do.

When the granular material to be filled is garnet sand, the garnet sand is originally rounded and hard to be injured and hard to consolidate even if it falls, and it is suitable for sliding shot technology in clay-type courts when used for tennis courts. An advantageous sliding property can be imparted. Furthermore, since garnet sand has a large specific gravity, it does not generate dust even in strong winds.

Further, the garnet sand to be filled does not break up or wear into smaller pieces than the silica sand to be filled in the ordinary sand-containing artificial turf, so that the artificial turf is filled with the garnet sand as the filling sand. Also in the second aspect of the invention, the fine particles that have been finely divided and abraded cannot cause the solidification, and the periodic repair work for loosening the solidification becomes unnecessary.

[Brief description of drawings]

FIG. 1 is a first preferred embodiment according to the present invention.
3 is a perspective view in which a part of the example of FIG.

FIG. 2 is an explanatory diagram of a second embodiment according to the present invention.

[Explanation of symbols]

1 surface structure 1A surface structure 2 crushed stone layer 3 rubber chip layer 4 base mat (three-dimensional woven synthetic resin filament) 4A base mat (rubber molding) 5 base network surface (base surface) 5A base surface 6 elastic standing element (pile) Part) 6A first frustoconical first elastic standing element 7 granular material 8 top network surface (top surface) 9 top surface 10 top surface 11 second frustoconical second elastic standing element

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Claims (5)

[Claims] 1. In a surface structure in which a person walks or moves, a lower roadbed and a base mat arranged on the lower roadbed, wherein the base surface has fine pores for water permeation, but particles of a predetermined particle size are difficult to permeate. And a base mat having a large number of elastic standing elements that stand up to a predetermined height from a base surface in a regular predetermined pattern, and a granular material of the predetermined particle size filled into the base mat up to the top surface of the base mat. The characteristic surface structure. 2. A three-dimensional woven body in which the base mat is three-dimensionally woven with flexible filaments of synthetic resin,
This three-dimensional woven body is provided with a base network surface having a fine texture pattern, a large number of pile portions as elastic upright elements standing up from the base network surface to a predetermined height along the texture pattern, and the pile portion. 2. The surface structure according to claim 1, further comprising a top network surface connected to the base network surface by and having a texture pattern of a texture equal to or greater than the texture of the base network surface. 3. The base mat is a rubber molded body, and the rubber molded body has a base surface having water-permeable slits formed thereon.
2. The surface structure according to claim 1, wherein the surface structure comprises a large number of frustoconical elastic upright elements which stand up to a predetermined height from the base surface in a regular predetermined pattern. 4. The frustoconical elastic upright element comprises a first elastic upright element having a top surface and a second elastic upright element having a top surface at a level lower than the top surface in a regular pattern. 3. The base surface is integrally molded with
The listed surface structure. 5. A surface structure of artificial sand containing sand, characterized in that the sand spread over the artificial grass is garnet sand.