JP2000120009A - Paving block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paving block, in which corner breaking, cracking, etc. are not generated and on which a person scarcely slip in the rain. SOLUTION: The inside of a frame body 2 composed of a ceiling wall 3 and sidewalls 4 and made of waste plastics is filled with water-permeable concrete 5' and crest sections 20 and bottom sections 21 are formed repeatedly to the top face of the frame body. Thin projections 23 in velour-shaped non-slips are formed, water-conveyance holes 22 are bored to the bottom sections and rainwater on the top face is infiltrated into water-permeable concrete on the inside from the water-conveyance holes and waste water is treated while a slip is stopped by the thin projections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement block laid on a sidewalk, a floor of a factory or a warehouse, or the like.

[0002]

2. Description of the Related Art Conventionally, for example, when paving a sidewalk,
The blocks are laid one by one at desired intervals on a base made of gravel or sand, and the joints are formed by filling joint materials such as sand. This block body is formed by molding a single material called concrete into a thick plate or brick shape by a so-called instant deconstruction method or the like, and the upper surface is colored with an appropriate concavo-convex pattern or an appropriate color or pattern. In some cases, the pavement surface is decorated according to the surrounding scenery, and has a function to prevent slippage when walking in rainy weather.

[0003]

However, in the case of the above-mentioned conventional block body and the construction method, the block bodies must be laid horizontally while adjusting the joint spacing between adjacent block bodies one by one. It was a very time-consuming task. In addition, since the work requires skill, the laying work must rely on a skilled engineer called a block builder. In addition, the blocks laid by the conventional method are laid individually on the sand adjustment layer in an independent state, and the joints are simply filled with joint material such as sand. It was possible to move in the direction, and with the passage of time, each block body moved or settled, and it was easy to cause unevenness in which the pavement surface became uneven. If the space between the pavement blocks is vacant, even if the joint material is filled, the wheelchair user will vibrate every time the seam is crossed and the running resistance will increase, which is not preferable.

[0004] Further, since the conventional block body is formed by molding concrete which belongs to a fragile class as a material characteristic, it is liable to cause chipping or cracking during transportation or after laying. In addition, concrete molded with aggregate kneaded and shrinks when cured, so it cannot be molded with higher precision than when molding other materials,
Large dimensional errors had to be tolerated. For example, an interlock-type block body in which the unevenness of an adjacent block body is fitted to make it difficult to move in the lateral direction when the unevenness is formed and laid on the side surface of the block body cannot improve the accuracy of the unevenness. Therefore, rattling remains even after fitting. As a result, the height becomes uneven over time,
As a result, cracks and irregularities occur. Furthermore, similarly to the above-mentioned block body, since it is laid while adjusting the same height on the adjustment layer, it takes time and effort. Further, even if concrete is precisely molded, it is not possible to actually fit the concrete without any gaps because the elasticity at the time of fitting the unevenness cannot be expected. For this reason, with the conventional concrete pavement block, precise joining could not be realized.

[0005] In the conventional concrete block, an uneven pattern is formed on the surface as a non-slip surface.
Since there is a limit to the fineness of the irregularities that can be formed by concrete, the anti-slip function is insufficient.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pavement block which is easy to construct, hardly generates cracks and unevenness, and is hard to slide during rainfall. is there.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above object, and the present invention is directed to a resin molded into an open bottom surface comprising a ceiling wall and a side wall. A pavement block filled with concrete in a hollow frame made of concrete, wherein a plurality of projections are integrally formed on the inner surface of the frame, and concrete is engaged with the projections by a contraction force at the time of hardening of the concrete. Is a pavement block which is integrated while being covered with a resin frame.

According to a second aspect of the present invention, on the surface of the side wall of the frame, a joint concave portion and a joint convex portion to be joined to an adjacent pavement block in a construction state are integrally formed, and the joint concave portion and the joint convex portion are formed. 2. The pavement block according to claim 1, wherein adjacent pavement blocks are joined by close fitting with each other so that ceiling walls are smoothly connected to each other.

According to a third aspect of the present invention, on the surface of the side wall of the frame, a joint concave portion and a joint convex portion which are joined to an adjacent pavement block in a construction state are integrally formed, and the side surface of the joint concave portion and the joint convex portion are formed. A taper is formed on at least one of the side surfaces of the portion, and the taper is formed in such a manner that adjacent pavement blocks are joined and the ceiling walls are almost flush with each other, the upper portion is in a loose fit state, and the lower portion is in a non-free state. The paving block according to claim 1, wherein the paving block has a tapered shape to be fitted.

According to a fourth aspect of the present invention, a plurality of flexible projections are integrally formed on the surface of the side wall of the frame,
The pavement block according to any one of claims 1 to 3, wherein the projections of the adjacent pavement blocks are engaged with each other in a construction state to prevent relative movement in the horizontal direction.

According to a fifth aspect of the present invention, there is provided the air conditioner according to any one of the first to fourth aspects, wherein a water hole is opened in the upper surface of the frame, and the concrete filled in the frame is a permeable concrete. It is a paving block of description.

According to a sixth aspect of the present invention, on the upper surface of the frame,
The pavement block according to claim 5, wherein a plurality of peaks and valleys are formed, and a water hole is opened at a bottom of the valley.

According to a seventh aspect of the present invention, there is provided an electronic apparatus comprising:
The pavement block according to claim 6, wherein a plurality of peaks and valleys are formed, and at least a top of the peaks is formed with a brush-like non-slip.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a pavement block 1 according to the present invention, FIG. 2 is a sectional view of the pavement block 1, and FIG.
FIG. 4 is a bottom view of the frame 2 serving as the outer skin of the pavement block 1, and FIG. 4 is a perspective view showing a corner inside the frame 2.

A pavement block 1 according to the present invention, as shown in FIGS. 1 and 2, includes a concrete frame 5 in a hollow resin frame 2 formed of a ceiling wall 3 and a side wall 4 and having an open bottom surface. A plurality of protrusions 6 are integrally formed on the inner surface of the frame body 2, and the concrete 5 is engaged with the protrusions 6 by a contraction force at the time of hardening of the concrete 5. It is integrated in a state covered with the body 2.

The frame 2 is, for example, 300 mm long and 300 mm wide.
mm, a hollow frame 2 having a thickness of about 60 mm.
A plurality of protrusions 6 are integrally formed on the inner surface of the. In the embodiment shown in FIG. 3 and FIG. 4, the protrusion 6 molded on the inner surface of the frame 2 is a cruciform body 6 a having a cross-shaped cross section integrally molded from the inner surface of the ceiling wall 3 toward the lower surface opening side. Section T
It is composed of a T-shaped column 6b. The side surfaces of the cross pillars 6a and the T-shaped pillars 6b function as engagement walls that engage in the shrinkage direction (the center direction of the frame 2) when the concrete 5 filled in the frame 2 is hardened. Thus, the filled concrete 5 and the frame 2 are integrated. The cross pillars 6a and the T-shaped pillars 6b are formed so as not to exceed the height of the side wall 4.

A triangular plate-shaped reinforcing rib 7 is integrally formed at the inner corner of the ceiling wall 3 and the side wall 4 to reinforce the ceiling wall 3 and the side wall 4. In addition, since the T-shaped pillar 6b is integrally formed with the inner surface of the ceiling wall 3 and the inner surface of the side wall 4 being connected to each other, the T-shaped column 6b also serves to reinforce the ceiling wall 3 and the side wall 4.

The synthetic resin forming the frame 2 may be a virgin resin, but it is desirable to use waste plastic for resource conservation. For example, when manufacturing a resin bumper for an automobile, an unnecessary portion is cut off after molding, and the cut portion, that is, a waste material can be used. Specifically, the plastic discharged as waste material is cut into fine chips, and the frame 2 is manufactured by injection molding using the chips as raw materials.

As described above, since the frame 2 is made of plastic by injection molding, fine processing can be performed with high precision, and a high-precision joint portion can be formed on the surface of the side wall 4 of the frame 2 described later. Alternatively, the surface of the ceiling wall 3 of the frame 2, that is, the pavement surface, can be designed with a bishan style, split skin, or the like.
Processing for this design also serves as a non-slip function in rainy weather. Furthermore, desired coloring is also possible. When the frame 2 is made of an elastic resin, the shock is absorbed, so that fatigue of walking on the sidewalk can be reduced, and the safety when the vehicle falls down can be improved.

A projection 6 formed on the inner surface of the frame 2
(Cross pillars 6a and T-shaped pillars 6b) integrate the filled concrete 5 and the frame 2 so that the concrete 5 filled in the frame 2 of the pavement block 1 is easily separated. It does not require any special consideration for handling during transportation or pavement work. The filled concrete 5 has a resin frame 2 at the corners.
Since it is covered and integrated, it is unlikely to cause corner chipping or cracking like a conventional concrete block. Therefore, at the time of carrying and pavement work, no special attention is required for corner chipping or the like, and the work becomes easy. Moreover, since the corner chipping and cracking hardly occur even after the construction, the pavement block 1 already constructed can be peeled off and reused. It should be noted that peeling off the already constructed pavement block and reusing it could not be realized at all because the conventional pavement block was already damaged.

On the surface of the side wall 4 of the frame 2, a joint concave portion 10 and a joint convex portion 11 for joining with the adjacent pavement block 1 are integrally formed. The joining recess 10 is formed between two adjacent
A plurality of (for example, two on one surface) are formed on the surface of one side wall 4, and the joint protrusion 11 is formed on the other adjacent two of the frame body 2.
A plurality of (for example, two on one surface) are formed on the surface of the one side wall 4 in correspondence with the bonding recess 10.

The joining portion composed of the joining concave portion 10 and the joining convex portion 11 will be described in detail. FIG. 5 is a plan view of the pavement block 1 according to the present invention, FIG. 6A is a view of the joint recess 10 as viewed from above, and FIG.
7 is a top view of FIG. 1, and FIG.
FIG. 3 is a cross-sectional view of a bonding state with No. 1.

The joint recess 10 is formed on the surface of the side wall 4 of the frame body 2, has a tapered side surface, and is formed of a groove-shaped recess having a horizontal cross-sectional shape of an isosceles triangle. Of the frame 2 gradually spreads from the upper surface side to the lower surface side of the frame 2. On the other hand, the joining convex portion 11 is formed on the surface of the side wall 4 of the frame body 2, and is formed of a bulging portion having a tapered side surface and a horizontal cross-sectional shape bulging into an isosceles triangle. Gradually spreads from the surface of the ceiling wall 3 toward the lower surface of the frame 2. The recess and the bulge are formed in a female and male relationship, and the groove dimension above the valley is slightly wider than the bulge above the bulge. The dimension of the groove below the recess and the dimension of the bulge below the bulge are set to dimensions that can be fitted without any gap.

For this reason, when joining the joining concave portion 10 of the paving block 1 to be laid next to the joining convex portion 11 of the laid paving block 1, the side surface of the joining concave portion 10 and the joining convex portion 11 are joined.
Since the taper formed on the side surface has a gap when the heights of the two paving blocks 1 are different, the paving block 1 can be freely moved and adjusted to a predetermined position. on the other hand,
In a state where both pavement blocks 1 are placed at predetermined positions and the ceiling walls 3 of adjacent pavement blocks 1 are substantially flush with each other, the upper part is in a loosely fitted state, and the lower part is in a non-fitted state. In other words, a slight gap (for example, 1 mm) is formed above the joined concave portion 10 and the joined convex portion 11, but the lower portion is in a contact state in which both tapers are engaged without any gap.

Therefore, the joint between the two pavement blocks 1 does not have a gap enough to require joint treatment, and the adjacent pavement blocks 1 are engaged with each other by the joint, and there is no gap below the joint. Will be laid. Therefore, each of the pavement blocks 1 laid while being joined vertically and horizontally is prevented from moving in the horizontal direction, and cannot be shifted. When a load acts on the joint recess 10 from above, the joint convex portion 11 prevents the joint recess 10 from descending to generate a reaction force against the load, and the load is distributed to the adjacent pavement block 1. Therefore, vertical displacement can be prevented, and the pressure per unit area (surface pressure) applied to the base is reduced, and the flow of sand or the like constituting the base can be suppressed. For this reason,
It is possible to prevent a gap from being formed between each pavement block 1 and the groundwork, thereby preventing unevenness. In addition,
When a load is applied to the joining protrusion 11 from above, the joining recess 10 is formed on the other side wall 4 of the pavement block 1, so that the joining of this portion generates a reaction force as described above, and The load is distributed to the adjacent pavement block 1.

The shape of the joint recess 10 is not limited to the above-described embodiment, and for example, as shown in FIGS.
A taper tapered from the surface side of the ceiling wall 3 toward the lower surface side of the frame body 2 may be formed on the side surface, and may be a concave portion of a triangular groove having a concave cross section. Also in this case, the taper formed on the side surface of the adjacent joint concave portion 10 and the side surface of the joint convex portion 11 is such that the ceiling walls 3 of the adjacent pavement blocks 1 are substantially flush with each other, and the upper portion is loosely fitted. , The lower part becomes a non-fitting state, and the lower part of the bonded joint concave part 10 and the bonded convex part 11
Both tapers are in contact with each other without any gap.

As described above, the pavement block 1 according to the present invention.
Since the frame 2 covering the concrete 5 is formed by injection molding using a synthetic resin, the joint concave portion 10 and the joint convex portion 11 can be formed with high precision. In the joint state between the joint concave portion 10 and the joint convex portion 11, it is possible to manufacture such that a small gap is formed in the upper portion and the lower portion is in a state of meshing without any gap. The joining concave portion 10 and the joining convex portion 11 are provided in two different types on the surface of the two adjacent side walls 4 of the frame 2 respectively. However, the present invention is not limited to this, and may be appropriately changed if the joining can be sequentially performed in a laid state. May be.

Next, another embodiment of the joining concave portion 10 and the joining convex portion 11 constituting the joining portion will be described with reference to FIGS.
1 will be described.

The joining concave portion 10 shown in FIG. 10 has a rectangular (trapezoidal) groove-shaped concave portion having a concave cross-sectional shape in which a taper gradually expanding from the surface side of the ceiling wall 3 toward the lower surface side of the frame body 2 is formed on the side surface. Consists of On the other hand, the joining convex portion 11 has a tapered side surface that gradually widens from the surface side of the ceiling wall 3 toward the lower surface side of the frame body 2, and is formed from a bulging portion bulging into a quadrangular (trapezoidal) having a convex cross section. It becomes. With such a shape, since there is no sharp portion in the joint projection 11, a molding die can be easily manufactured.

In the joint recess 10 shown in FIG. 11, a taper is formed on the side surface, which gradually widens from the surface side of the ceiling wall 3 toward the lower surface side of the frame 2, and the cross section is formed by a semicircular groove. . On the other hand, the joint convex portion 11 is formed on the surface of the side wall 4 of the frame body 2, and has a taper on the side surface which gradually widens from the surface of the ceiling wall 3 toward the lower surface of the frame body 2, and has a semicircular shape having a convex cross section. It consists of a bulging portion.

The joint recess 10 has a tapered side surface from the surface of the ceiling wall 3 toward the lower surface of the frame 2 corresponding to each of the joint protrusions 11 described above. Or a concave portion of a square or semicircular groove. That is, with the upper surfaces of the adjacent pavement blocks 1 being substantially flush with each other, the upper portion is in a loosely fitted state, and the lower portion is in a non-fitted state, so that the lower portion of the joint concave portion 10 and the joint convex portion 11 are joined. Any shape may be used as long as it is in a contact state in which both tapers are engaged with each other without any gap. Therefore, the taper is formed on at least one of the side surface of the joint concave portion 10 and the side surface of the joint convex portion 11, and the adjacent pavement blocks 1 are joined and the ceiling walls 3 are almost flush with each other. Any cross-sectional shape may be used as long as the taper is such that the upper portion is in a loose fit state and the lower portion is in a non-fit state.

Next, a modified embodiment of the joint will be described. In each of the above-described embodiments, at least one of the side surface of the joint concave portion 10 and the side surface of the joint convex portion 11 is tapered. However, a straight side surface may be formed without forming this taper. In this case, the joint recess 10
The joint projection 11 and the joint projection 11 are molded to a size that can be closely fitted without any gap. With this configuration, the frame 2 is made of a synthetic resin and has some elasticity. Therefore, even if the joint concave portion 10 and the joint convex portion 11 have the same size, if they are molded with high accuracy, they are in close contact. And the adjacent pavement blocks 1 can be joined and connected in a state where the ceiling walls 3 are smoothly continuous. And when joined in such a close state, not only is there no need for joint material, there is no corner chipping or cracking, but also there is no vibration even when crossing the seam in a wheelchair, and the running resistance is increased. Not even. Moreover, since the adjacent pavement blocks 1 prevent movement in the horizontal direction, they do not shift even after a long period of time.

Another embodiment of the joint shown in FIG. 12 is that the surface of the side wall 4 of the frame 2
Countless whisker-like flexible protrusions 1 that engage the surface of
2 is integrally molded. This beard-shaped projection 12
Is a thread shape having the same diameter outward from the surface of the side wall 4 or a thread-shaped linear body whose diameter is reduced outward from the surface of the side wall 4, and each one is easily bent. .

For this reason, the joint of the paved block 1 laid is engaged with the joint of the paved block 1 to be laid next by being hooked by the beard-shaped projections 12 of each other. Therefore, the pavement block 1 is prevented from moving in the horizontal direction due to the engagement force of the projections 6, is prevented from being shifted, and is also prevented from moving in the vertical direction. For this reason, it is difficult to cause irregularities. Further, since the beard-shaped projections 12 are engaged with each other between the adjacent pavement blocks 1, joint treatment is not required. The rainwater that has fallen on the pavement block 1 penetrates into the ground through the gaps between the meshed projections 6 and suppresses the formation of a puddle on the upper surface of the pavement block 1, thereby reducing a slip accident due to the puddle. can do. In addition, even if rainwater accumulates on the upper surface of the pavement block 1, drainage is promoted by a water hole described later, and slip is prevented by slipping.

Next, a case of paving a sidewalk using the paving block 1 according to the present invention will be described. Note that FIG.
FIG. 1 is a view showing a part of a sidewalk paved by using a paving block 1 according to the present invention.

First, the roadbed 14 is constructed by laying chestnuts or the like on the sidewalk, and sand or pebbles are laid on the upper surface of the roadbed 14 to form a roadbed.
The adjustment layer 15 is formed as a base of about mm. In addition,
This adjustment layer 15 is configured to be flat.

Next, the pavement block 1 according to the present invention is laid on the upper surface of the adjustment layer 15. When the pavement block 1 is connected to the adjacent pavement block 1, the joining projections 11 and the joining recesses 10 are moved in the vertical direction or are moved in the horizontal direction to join the joining sections 10, 11 substantially. By performing the laying in a flush state, a smooth seam is formed, and the pavement work can be performed without performing joint treatment. For this reason, work can be performed without requiring skilled skills. Further, since the joining concave portions 10 and the joining convex portions 11 of the adjacent pavement blocks 1 are engaged with each other, the respective pavement blocks 1
Are prevented from moving horizontally or vertically. Therefore, there is no unevenness even after a long period of time, and excellent durability is provided. In addition, since no unevenness occurs, it is easy to walk, and a pedestrian can walk safely. Furthermore, since there is no joint processing, unevenness due to joints does not occur, so that smooth operation can be performed even for driving a wheelchair or a disabled person.

The pavement block 1 is made of a resin frame 2.
Since the concrete 5 is filled therein, the weight of the concrete 5 allows the concrete layer 5 to be firmly laid on the adjustment layer 15. Therefore, the pavement block 1 is not inadvertently blown during a typhoon or a storm. In the case where the pavement block 1 is made of only resin, it is too light, and the joining portion is firmly joined. Therefore, in the case of the pavement block 1 made of only resin without sufficient weight, the pavement block is not used. 1
There is a possibility that they may be separated from the adjustment layer 15 in an arch shape.

Next, a description will be given of a water passage hole 22 on the upper surface of the pavement block 1 for promoting drainage of rainwater, and a non-skid which makes it difficult for a foot to slip. In the pavement block 1 shown in FIG. 14, a plurality of peaks 20 and valleys 21 are repeatedly formed on the upper surface of the frame 2, and a water passage hole 22 is opened at the bottom of the valley 21 to form
The inside of the frame 2 is provided with a permeable concrete 5 '.
Is filled.

As shown in FIG. 15, it is desirable that the peaks 20 are formed with different heights, such as a high peak 20a and a low peak 20b. And these mountains 20
In the present embodiment, the raised slipper formed on the surfaces of the a and 20b and the surface of the valley 21, that is, formed in an innumerable state from the surface, has a thickness of 0.8 in this embodiment.
It is constituted by erecting countless thin protrusions 23 each having a length of 1.5 mm and a length of 1.5 mm. It should be noted that the non-slip projections 23
The upper end of the projection 23 formed in the valley 21 is the highest peak 20
Desirably higher than the top of a. This is because, as will be described later, even if the non-slip of the peak 20a is lost due to wear, the anti-skid protrusion 23 of the low peak 20b or the valley 21 may be used.
Is pressed against the sole of the shoe to maintain the anti-slip mechanism for a long period of time.

In order to form such thin projections 23, a myriad of fine holes having a diameter of 0.8 mm and a depth of 1.5 mm are formed on the inner surface of a mold for molding the frame 2, 2 can be molded simultaneously with the frame 2 by integral molding. And, the anti-slip projection 2 integrally molded with the frame 2
Since 3 is made of the same plastic as the frame 2, it has sufficient elasticity, bends when it receives an external force, and returns to its original standing state due to elasticity when there is no external force. In addition,
The water passage hole 22 is, for example, a through hole of about 5 mm.

The water-permeable concrete 5 'is also called porous concrete, and is bonded in a state where voids are continuously formed between aggregates by a binder mainly composed of cement. The gap formed between them ensures the function of passing rainwater.

As described above, in the pavement block 1 in which the water holes 22 are opened and the brush-like anti-skid projections 23 are formed innumerably, the rainwater on the upper surface collects in the valleys 21 and the rainwater flows therethrough. 22 and the permeable concrete 5 'in the frame 2
Soak in. Then, the rainwater that has soaked into the permeable concrete 5 'gradually flows down in the permeable concrete 5', and finally flows out from the lower surface of the permeable concrete 5 ', so that the adjusting layer 15, that is, the underground, Soak in. Therefore, rainwater can be prevented from accumulating on the upper surface of the pavement block 1, and good drainage can be expected.

Further, the raised surface of the pavement block 1 is provided with raised anti-skid projections 23, so that even if the foot of a pedestrian is put on even if the pedestrian's shoes get on even if it gets wet during rainfall, FIG.
As shown in FIG. 5, the anti-slip projections 23 of the high peak portion 20a
Is stepped on, and the thin protrusion 23 is bent by the shoe sole 24. When the shoe 23 is supported by the dots and lines while the projection 23 having a non-slip curve is curved, the surface pressure of the projection 23 against the shoe sole 24 rises sharply, so that it is possible to remove rainwater during the rainfall. Loses its function as a lubricant. Therefore, even if the upper surface of the pavement block 1 is wet with rainwater, the pedestrian can walk with ease without sliding his / her feet. In the present embodiment, since a large number of peaks 20 and valleys 21 are formed on the upper surface of the pavement block 1, the peaks 2
The load acts more on the non-slip projection 23, and this portion mainly supports the sole 24.

When the pedestrian repeatedly walks on the pavement block, the non-slip projections 23 of the high peak 20a gradually wear, but the non-slip projections 23 of the high peak 20a wear to prevent slip. When the function is deteriorated, the protrusion 23 at a lower position by the amount of wear supports the shoe sole 24, so that a greater load acts on the thin protrusion 23 of the lower ridge portion 20b which is not slippery. Therefore, even if the non-slip protrusion 23 of the high peak portion 20a wears over time,
The anti-skid projection 23 of the crest 20b will exhibit its function, and the anti-skid projection 23 of the valley 21 will eventually maintain its anti-skid function until it wears out and disappears. Can be. For this reason, the pavement block 1 in the present embodiment can maintain a stable anti-skid function for a long period of time.

The means for forming the non-slip on the upper surface of the pavement block 1 is not limited to the one in which the myriad of thin projections 23 are integrally formed by a mold. For example, the top 2
The upper part of the mountain part 20 may be raised by shaping the frame 2 on which the zeros and the valleys 21 are formed, and finely cutting innumerable cuts on the upper surface of the frame 2 with a cutter. In order to form innumerable thin cuts, a disk-shaped cutter (not shown) in which a number of sharp needles are planted like a sword mountain is used, and this cutter is rotated while being pressed against the upper surface of the frame 2. Good.

When the brush-like non-slip is formed by making innumerable thin cuts in this way, the raised portion functions not only as a non-slip but also the ridges formed with the non-slip. The color becomes white and can be changed to a color different from the color of the valley, that is, the color of the plastic material itself used to mold the frame 2. Therefore, a color change can be provided in one pavement block 1, and the decorative effect can be enhanced by the color change.

In FIGS. 14 and 15, the non-slip is formed on the entire surface. However, if the anti-slip is formed at least on the mountain portion 20, the effect of the non-slip during rain can be expected. In addition, even when the anti-skid is not provided, the water hole 22 may not be provided.
In this case, since the upper surface has undulation due to distortion when the frame body 2 is molded, the water can be drained from the water passage hole 22, so that the occurrence of water pools can be reduced. Further, the concrete to be filled in the frame 2 is desirably a permeable concrete 5 ', but even the conventional concrete 5 can be used because a little water is allowed to pass therethrough.

[0049]

As described above, according to the present invention, the following effects can be obtained. According to the first aspect of the present invention, a plurality of projections are integrally formed on an inner surface of a resin frame formed into an open bottom surface including a ceiling wall and a side wall, and the projections are formed on the projections by a contraction force at the time of hardening of the concrete. And the concrete is integrated in a state where the concrete is covered with a resin frame, so that the frame can be processed and colored with high precision.
Therefore, it is possible to apply a desired design or coloring such as a bishan style or a split skin to the surface of the ceiling wall, that is, the pavement surface, and the processing for this design can also ensure the function of preventing slippage in rainy weather.

For this reason, it is possible to easily produce a pavement block suitable for not only the sidewalk but also the surrounding scenery such as a theme park or a residential area. Furthermore, since the pavement surface is made of resin and generates little noise even when a car or the like passes, it can be used in an indoor factory or warehouse.

Further, the concrete filled in the frame does not fall off, and safety during transportation and pavement work can be ensured. Further, the pavement block does not suffer from corner chipping or cracking, thereby facilitating transportation and pavement work, and also allows the constructed pavement block to be peeled off and reused.

Further, since the frame functions as a concrete form as it is, a large-scale form required for the production of a conventional concrete block is not required, which is economical. Also, pavement blocks can be manufactured simply by pouring excess concrete into this frame at the concrete factory, so that concrete can be reused.In addition, resin as waste material can be used for the frame. It can also recycle waste materials, which can contribute to resource savings.

According to the second aspect of the present invention, the joint concave portion and the joint convex portion for joining the adjacent pavement blocks in the construction state are integrally formed on the surface of the side wall of the frame body, and the joint concave portion and the joint convex portion are in close contact with each other. Adjacent pavement blocks are joined by proper fitting so that the ceiling walls are smoothly connected to each other, so that a joint material is not required and laying work can be expected to be facilitated. Also,
Since the joining concave portion and the joining convex portion are closely fitted to each other, they are prevented from moving in the horizontal direction, so that the inconvenience of large displacement even when used for a long period of time can be solved. Furthermore, since the adjacent pavement blocks are joined and the ceiling walls are smoothly connected to each other, there is no vibration even when the joining portion is crossed by a wheelchair, and there is no inconvenience of increasing running resistance.

According to a third aspect of the present invention, on the surface of the side wall of the frame, a joint concave portion and a joint convex portion to be joined to the adjacent pavement block in the construction state are integrally formed, and the side surface of the joint concave portion and the joint convex portion are formed. A taper is formed on the side surface of the upper surface, and the upper surface is loosely fitted and the lower portion is not loosely fitted in a state in which adjacent pavement blocks are joined and the ceiling walls are almost flush with each other. It is tapered. Therefore, no joint treatment is required at the seam, and the adjacent pavement blocks are meshed by the joint, and there is no gap at the lower part of the joint, so that there is no unevenness even after a long period of time, which is excellent. With durability. Further, since there is no joint processing, unevenness due to joints does not occur. For this reason, it is possible to smoothly drive a wheelchair or a disabled person.

According to a fourth aspect of the present invention, on the surface of the side wall of the frame, a plurality of flexible projections are integrally formed on the surface of the side wall of the frame, and the pavement adjacent to the pavement in the construction state. Since the projections of the blocks are engaged with each other, the adjacent pavement blocks are hooked and engaged by the projections of each other, and are prevented from moving in the horizontal direction. In addition, since a gap is filled between the pavement blocks by the protrusion, joint processing is not required. Then, during rainfall, rainwater flows down between the engaging projections, so that puddles can be prevented from being generated on the upper surface of the pavement block, and a slip accident or the like caused by the pooled water can be reduced. it can.

According to the fifth aspect of the present invention, a water hole is opened in the upper surface of the frame, and the concrete to be filled in the frame is permeable concrete. Can be soaked in concrete. Therefore, high drainage properties can be expected.

According to a sixth aspect of the present invention, on the upper surface of the frame,
Since a plurality of peaks and valleys are formed and water holes are opened at the bottom of the valleys, higher drainage can be expected.

According to a seventh aspect of the present invention, on the upper surface of the frame,
A plurality of peaks and valleys are formed, and a raised anti-skid is formed on at least the top of the peak, so that even when the top surface of the pavement block is wet, the raised anti-slip contacts the shoe sole of a pedestrian. The surface pressure at the time of running can be increased, which can prevent a pedestrian from slipping his or her feet. Therefore, even when wet, the pedestrian can walk with peace of mind.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pavement block according to the present invention.

FIG. 2 is a sectional view of a pavement block according to the present invention.

FIG. 3 is a bottom view of a frame serving as an outer skin of the pavement block according to the present invention.

FIG. 4 is a perspective view of an inner corner portion of the frame.

FIG. 5 is a plan view of a pavement block according to the present invention.

FIG. 6 (a) is a view of a joining recess as viewed from above.
(B) is the figure which looked at the joining convex part from above.

FIG. 7 is a cross-sectional view showing a joint state between a joint concave portion and a joint convex portion.

FIG. 8 (a) is a view of a joining recess according to another embodiment as viewed from above. (B) is a figure which looked at the junction convex part of other embodiments from the top.

FIG. 9 is a cross-sectional view showing a joint state of a joint concave portion and a joint convex portion according to another embodiment.

FIG. 10 (a) is a view of a joining recess of another embodiment as viewed from above. (B) is a figure which looked at the junction convex part of other embodiments from the top.

FIG. 11 (a) is a view of a joining recess according to another embodiment as viewed from above. (B) is a figure which looked at the junction convex part of other embodiments from the top.

FIG. 12 is an explanatory view showing a projection protruding from a side wall of a pavement block.

FIG. 13 is a perspective view showing a part of a sidewalk paved using the paving block according to the present invention.

FIG. 14 is a partially cutaway sectional view of a pavement block having a non-slip surface formed on an upper surface.

FIG. 15 is an enlarged cross-sectional view of the slip stopper shown in FIG. 14;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pavement block 2 Frame 3 Ceiling wall 4 Side wall 5 Concrete 6 Projection 6a Cross column 6b T-shaped column 7 Reinforcement rib 10 Joining recess 11 Joining projection 12 Flexible projection 14 Roadbed 15 Adjustment layer 20 Mountain 20a High Mountain 20b Low mountain 21 Valley 22 Water hole 23 Non-slip projection 24 Sole

Claims (7)

[Claims] 1. A pavement block comprising a resin-filled hollow frame formed of a ceiling wall and a side wall and formed into an open lower surface and filled with concrete, wherein a plurality of projections are integrally formed on an inner surface of the frame. A pavement block, wherein concrete is engaged with the projections by a contraction force at the time of hardening of the concrete, and the concrete is integrated in a state of being covered with a resin frame. 2. A joint concave portion and a joint convex portion to be joined to an adjacent pavement block in a construction state are integrally formed on a surface of a side wall of the frame body, and the joint concave portion and the joint convex portion are closely fitted to each other. The pavement block according to claim 1, wherein adjacent pavement blocks are joined so that ceiling walls are smoothly connected to each other. 3. A joint concave portion and a joint convex portion to be joined to an adjacent pavement block in a construction state are integrally formed on a surface of a side wall of the frame body, and at least one of a side surface of the joint concave portion and a side surface of the joint convex portion. Forms a taper, and the taper is a taper in which the upper part is in a loose fit state and the lower part is in a non-free fit state in a state in which adjacent pavement blocks are joined and the ceiling walls are substantially flush with each other. The pavement block according to claim 1, wherein: 4. A plurality of flexible projections are integrally formed on the surface of the side wall of the frame, and the projections of the adjacent pavement blocks are engaged with each other in a construction state, so that the projections are relatively horizontal. The pavement block according to any one of claims 1 to 3, wherein movement is prevented. 5. The pavement block according to claim 1, wherein a water hole is opened in the upper surface of the frame, and the concrete filled in the frame is permeable concrete. 6. The pavement block according to claim 5, wherein a plurality of peaks and valleys are formed on an upper surface of the frame, and a water hole is opened at a bottom of the valley. 7. The pavement block according to claim 6, wherein a plurality of peaks and valleys are formed on the upper surface of the frame, and a raised anti-skid is formed on at least the top of the peaks.