JPH08209603A - Pavement stone block - Google Patents

Abstract

PURPOSE: To provide a pavement stone block which does not cause clogging in a water permeable section, can be laid in a place where rainwater does not permeate such as mortar, and allows decorative finish on a surface of the pavement stone block freely. CONSTITUTION: In pavement stone blocks which have rectangular top faces and are laid in such a manner that these top faces are continuous mutually, a projection 15 which prevents side sections of the pavement stone blocks from closely contacting mutually is formed in the side section of each side of the pavement stone block when these blocks are laid, and a recessed section 17 which opens an interval between sides continuously like groove is formed on the ground contact side of a rear surface of the pavement stone block. An opening in the side section of the recessed section is formed in such a manner that it opposes to an opening in the side section of the pavement stone blocks which are adjacent when they are laid. A conical surface 13 which makes a dimension of distance between the opposing side sections of the adjacent pavement stone blocks when the blocks are laid and a bottom surface side increase gradually toward the bottom surface side is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement block that is spread over roads, park plazas, and the like, and more particularly to a pavement block that allows efficient penetration of rainwater into the ground.

[0002]

2. Description of the Related Art Pavement blocks are laid in places where people walk, such as sidewalks and park plazas, to facilitate walking. Conventional pavement blocks have a flat plate shape or a rectangular parallelepiped shape, and when the pavement blocks are spread, the joints are extremely small. Therefore, the rain that falls on the pavement blocks flows over the pavement blocks and the gutters. Was led to.

In recent years, especially in urban areas, the exposed area of the ground on roads and the like has become extremely small due to the paving of asphalt and the like, so that it is difficult for rainwater to penetrate into the ground, so-called deserts. There is a phenomenon of change. Also,
Even in new housing complexes, the exposed area of the ground is becoming narrower, preventing rainwater from penetrating into the ground. Therefore, the rainwater that has flowed into the gutter suddenly flows into the river, causing flooding of the river. It is a cause. In order to avoid such a situation, many pavement blocks configured to have water permeability have been used, and it is attempted to infiltrate rainwater into the ground.

[0003]

However, since this water-permeable pavement stone block has numerous water passage holes, it has a drawback that the water passage holes are clogged with sand or dust. . In addition, in such a water-permeable pavement block, when laying on sand or soil,
Rainwater that has soaked from the surface can be made to soak into the ground, but depending on the installation site, it may be necessary to lay it on mortar.In this case, the surface of the pavement block must be filled with rainwater. Becomes

Further, in the above water-permeable pavement stone block, since rainwater permeates from the entire surface of the block, finishing of the block surface is limited. In other words, it is impossible to put decorative tiles or stones on the surface of the pavement block, or to wash out the gravel, and it is practical to match the pavement block with the sidewalk or the open space to the surrounding landscape. It was difficult.

The present invention has been proposed in view of the above-mentioned problems of the prior art, in which the permeable portion is not clogged.
Another object of the present invention is to provide a paving stone block having a drainage penetrating structure that can be laid in a place where rainwater does not penetrate, such as mortar, and that can be used to freely make up the surface of the paving stone block.

[0006]

In order to achieve the above-mentioned object, the present invention provides a paving stone block having rectangular (rectangular quadrilateral) upper surface portions which are laid so as to be connected to each other. In addition, on the side surface of each side of the pavement block, there is a protrusion that prevents the sides of the pavement block from sticking to each other. An opening recess is formed, and the opening of the side surface of the recess is formed so as to face the opening of the side surface of the adjacent pavement block at the time of laying.
It is characterized in that the opposing side surface portions of the adjacent pavement blocks at the time of laying are set so that the distance between them gradually increases toward the bottom surface side.

[0007]

According to the present invention having the above-described structure, since the side surface of the pavement block is formed with the protrusion which prevents the side surface of the adjacent pavement block from being in close contact with each other, the pavement block is laid. Occasionally, the side surfaces of the adjacent pavement blocks do not come into close contact with each other, and a gap corresponding to the protrusion size of the protrusion can be left between the adjacent pavement blocks. Further, since the facing side surfaces of the adjacent pavement blocks are formed so that the separation dimension gradually increases toward the bottom surface side, sand or the like mixed with rainwater falling from between the gaps Even if it penetrates into the space, it will be diffused and the gap will not be blocked. Further, on the back surface of the paving stone block, a groove-shaped continuous opening on the back surface side (ground side) is formed so as to connect each side, and an opening portion on each side of the recess is laid. Sometimes it is formed so as to face and communicate with the openings on each side of adjacent pavement blocks, so rainwater that enters through the gap can be diffused toward the recesses of the adjacent pavement blocks, and rainwater can be spread over a wide area. Can be penetrated into the ground.

[0008]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view showing a paving stone block of the present invention, FIG. 2 is a front view, FIG. 3 is a bottom view, and FIG. 4 is a bottom side perspective view.

As shown in FIGS. 1 to 4, in the paving stone block 1 of the present invention, the shape of the top surface portion 10 and the bottom surface portion 16 is square, and the bottom surface portion 16 has a smaller area than the top surface portion 10. It has a flat rectangular pyramid shape.

On the side surface of the paving stone block 1, a vertical surface portion 11 is formed on the side of the upper surface portion 10 so as to hang down from the upper surface portion 10 at a right angle. Further, a conical surface 13 is formed below the vertical surface portion 11. This conical surface 13
As shown in FIG. 5, is an inclined surface so that the distance between the conical surfaces 13 of the adjacent pavement blocks 1 gradually increases during laying.

The vertical surface portion 11 of each side is formed with a projecting portion 15 at each end. This projecting portion 15 contacts the projecting portions 15 of the adjacent pavement blocks 1 when the pavement blocks 1 are laid so that the vertical surface portions 11 do not adhere to each other and form a gap between the pavement blocks 1. is there. The size and the projecting size of the projecting portion 15 are not particularly limited, and are determined depending on what size the gap size between the pavement blocks 1 is set. The protrusion 15 does not have to be formed on all the vertical surface portions 11 on the four sides, and the vertical surface portions 11 on two adjacent sides are not required.
Need not be formed on the vertical surface portions 11 on the other two sides.

The bottom portion 16 of the paving stone block 1 is formed with a groove-shaped recess 17 which is open continuously to the bottom portion 16. The recesses 16 are arranged in a cross shape intersecting at the center of the bottom portion 16. In the present embodiment, the recess 17 is constructed so as to bridge the opposite sides, but the present invention is not limited to this, and the recess 17 is formed diagonally as shown in FIG. You may stay.

The recess 17 thus formed is formed so as to extend to the conical surface 13 of the side surface. In addition,
In the case of the one shown in FIG. 6, the openings are formed at the corners where the conical surfaces intersect. Therefore, when the paving stone blocks 1 are laid, the openings of the conical surfaces of the recesses 17 of the adjacent paving stone blocks 1 are opposed to each other, and the recesses 17 of the adjacent paving stone blocks 1 are in a communicating state. In addition, although the recesses 17 are arranged in a cross shape in FIGS. 3 and 6, it goes without saying that the present invention may be in the shape of a single character. Further, in the case of arranging in a cross, the number of the recesses 17 is one in each of the vertical direction and the horizontal direction, but in the present invention, two or more recesses 17 are formed in the vertical and horizontal directions. It goes without saying that you can leave it.

The recess 17 has a semicircular cross section in the radial direction, and as shown in FIG. 2, it is formed so that the upper side is narrow and the ground side is wide. This is because even if sand or the like collects in the recess 17, the flow velocity of rainwater passing therethrough becomes faster in the narrow portion, so that the sand or the like in the recess 17 is carried by the rainwater to the downstream side, This is to prevent clogging of 17. The cross-sectional shape of the recess 17 is not limited to such a semi-circular shape, but a semi-circular arch shape is preferable in terms of strength of the paving stone block 1.

FIG. 7 shows another example of the layout of the recess 17.

The laid state of the pavement blocks 1 is as shown in FIG. 4, but since a gap is formed between the vertical surface portions 11 of the adjacent pavement blocks 1, rainwater that has fallen on the upper surface portion 10 will go to the gap portion. And it flows down. And if it is a large amount of rainwater, it flows into the recess 17 before seeping into the ground, and since the recess 17 is also in contact with the ground, rainwater is also present in this part. It can penetrate into the ground. In addition, when the pavement block 1 is laid on a mortar, it is not necessary to infiltrate rainwater into the ground,
Rainwater flows through the recess 17 on the mortar, and the drainage efficiency is enhanced.

Further, according to the present invention, the conical surface portions 13 of the adjacent pavement blocks gradually increase their separation distance (gap) in the downward direction (ground direction). Sand that falls from the gap can be diffused and clogging of joints can be effectively prevented.

[0019]

As described above, according to the present invention, since rainwater that has entered from between joints is guided to the recess and the recess communicates with the recess of the adjacent pavement block, Rainwater that has entered through the gap can efficiently permeate the ground. Also, since the bottom surface side of the pavement block has a recess, the area in which the ground contacts the atmosphere increases,
Therefore, in the summer, etc., the pavement blocks can be cooled by the heat of vaporization of rainwater that has penetrated into the ground,
It is possible to suppress the temperature rise due to glare.

Furthermore, according to the present invention, since rainwater permeates from the periphery of the pavement block toward the ground, the top surface of the pavement block can be freely treated such as washing tiles and stones, and the design of the pavement block can be freely performed. Can be done.

[Brief description of drawings]

FIG. 1 is a plan view of a paving stone block according to an embodiment of the present invention.

FIG. 2 is a front view of a paving stone block according to an embodiment of the present invention.

FIG. 3 is a bottom view of the paving stone block according to the embodiment of the present invention.

FIG. 4 is a bottom side perspective view of the paving stone block according to the embodiment of the present invention.

FIG. 5 is a front view showing a construction state of a paving stone block according to the embodiment of the present invention.

FIG. 6 is a plan view showing a second embodiment of the present invention.

FIG. 7 is a plan view showing a third embodiment of the present invention.

[Explanation of symbols]

 1 Paving stone block 10 Upper surface part 11 Vertical surface part 13 Conical surface part 15 Projection part 17 Recess

Claims (2)

[Claims] 1. A paving stone block having a rectangular upper surface portion, which is laid so as to be connected to each other, wherein each side of the paving stone block has a side portion of each side of the paving stone block. Protrusions are formed to prevent them from sticking to each other.On the backside ground side of the pavement block, there are formed recesses that continuously open like grooves in between the sides, and on the side surface of the recess. The openings are formed so as to face the openings of the side surfaces of the adjacent pavement blocks when laid, and the facing side surfaces of the adjacent pavement blocks when laid have a gradually separating dimension toward the bottom surface side. A paving stone block characterized by being set to be large. 2. The paving stone block according to claim 1, wherein the recesses are arranged in a cross shape.