JP2003027408A - Interlocking block and method for forming road surface using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe road surface which hardly freezes even in winter, or easily thaws even if it freezes. SOLUTION: The interlocking block 10 consists of a concrete block 20 and an elastic block 50. The concrete block 10 is formed of a main body 21 and a projection 22 protruding therefrom, and therefore has a projecting shape in cross section. The elastic block 50 has elasticity, and it is fitted on the concrete block 20 by annularly enclosing side surfaces of the projection. According to the interlocking block 10, when the elastic block 50 is fitted on the concrete block 20, a tip surface 23 of the projection is almost flush with an upper surface 51 of the elastic block 50, which encloses the tip surface 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interlocking block used for paving roads and sidewalks and a method of constructing the interlocking block.

[0002]

2. Description of the Related Art Conventionally, interlocking blocks used for paving roads and sidewalks have been known. Many of these are paved with concrete blocks and bricks to form the surface of the road.

[0003]

However, in such a paving method, the concrete block is easily cooled in the winter, so that the entire surface of the pavement is frozen, and once frozen, the car does not easily melt and slips easily, which is dangerous. It was exposed.

Therefore, an object of the present invention is to provide an interlocking block which is simple in its method of application and is difficult to freeze, or is safe because it dissolves immediately after freezing.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, the present invention is
An interlocking block comprising a concrete block having a convex cross-section having a protrusion formed on a main body, and an elastic block having elasticity and fitted to the concrete block by surrounding a side surface of the protrusion in an annular shape. When the concrete block and the elastic block are fitted together, the tip end surface of the protrusion and the top surface of the elastic block that surrounds the tip end surface are on substantially the same plane. This makes it possible to provide an interlocking block capable of forming a road surface in which the surfaces of the concrete block and the surfaces of the elastic block are alternately exposed.

Further, the present invention is characterized in that the elastic block is formed in a plate shape in which a plurality of hollow portions into which the protrusions are fitted are arranged, and the interlocking is simple when constructing a road surface. Blocks can be provided. Further, the edge of the tip end surface of the protrusion is chamfered, so that the shape of the tip end surface forming the road surface can be stably maintained. Further, the base portion of the protrusion is reinforced by continuing from the lower portion of the four side surfaces of the protrusion to the main body portion so that the hem expands at a constant angle. An even more durable interlocking block can be provided.
Further, the inner wall surface of the elastic block facing the protruding portion is provided with irregularities, so that the elastic block does not easily come off from the concrete block.

As a road surface construction method, by fitting the concrete block and the elastic block,
The interlocking block according to the present invention can be effectively used, characterized in that the tip end surface of the protrusion and the upper surface of the elastic block are exposed upward and spread over the laying surface. An interlocking block comprising a concrete block having a convex cross-section with a protrusion formed on the main body and an elastic block having elasticity and a cavity into which the protrusion fits. When the concrete block and the concrete block are fitted together, the tip end surface of the projecting portion is located inside the hollow portion and does not project outward from the surface of the elastic block. This makes it possible to provide an interlocking block for a sidewalk or the like that effectively uses the elasticity of the elastic block.

Further, since the edge of the bottom surface of the main body is chamfered, the shape of the bottom surface forming the road surface can be stably maintained. Further, as a method of constructing a road surface for a sidewalk, the concrete block and the elastic block are fitted to each other, and the bottom surface of the main body portion is exposed upward and spread on the laying surface. This makes it possible to form a road surface that is elastic and does not put a load on the legs.

Further, a plurality of concrete blocks having projecting portions formed on the main body and having recesses formed between the projecting portions when a plurality of the projecting portions are lined up are provided with a protrusion having elasticity and fitting into the recessed portions. An interlocking block composed of an elastic block having a corrugated cross section in which concave portions into which the projection portion and the projection portion enter are formed alternately, and when the concrete block and the elastic block are fitted to each other, A space is formed between the tip surface and the bottom surface of the recess. This makes it possible to provide an interlocking block capable of forming a road surface for a sidewalk having more stable elasticity.

Further, the concrete block has a chamfered end edge on the bottom surface of the main body portion, and a durable interlocking block can be provided. Further, as a road surface construction method using this interlocking block, the concrete block and the elastic block are fitted to each other, and the bottom surface of the main body portion is exposed upward and spread over the laying surface. As a result, a sidewalk road surface having elasticity and a stable shape is formed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 2 is a perspective view showing the shape of the concrete block 20, and FIG. 3 is a perspective view showing the shape of the elastic block 50. Concrete block 20
Is made of concrete, brick, or the like having high resistance to compression, and has a protrusion 22 at the center of the upper surface of the rectangular parallelepiped main body 21.
Is formed in a convex shape. The tip end surface 23 of the protrusion 22 forms a road surface when it is spread on the road as the interlocking block 10. The end edge of the tip end surface 23 has a chamfered protrusion chamfered portion 2 with chamfered corners.
5 are provided. Further, at the base of the protrusion 22, a protrusion reinforcing portion 26 continuous with the main body 21 is provided so that the hem extends from the lower part of the four side surfaces 24 of the protrusion at a constant angle, and the protrusion is connected to the main body 21. The bonding area of 22 is increased.

On the other hand, FIG. 1 shows a perspective view of one interlocking block 10 formed by combining a concrete block 20 and an elastic block 50. As shown in FIGS. 1 and 3, the elastic block 50 has a hollow portion 31 having a size substantially the same as that of the projecting portion 22 in the central portion so as to surround the projecting portion side surface 24 of the concrete block 20 in an annular shape. Further, the inner wall surface 52 facing the hollow portion 31 is provided with sawtooth-shaped irregularities.

Moreover, as shown in FIG. 1, the entire interlocking block 10 is formed into a substantially rectangular parallelepiped.
Therefore, the height of the protruding portion 22 of the concrete block 20 and the depth of the hollow portion 31 of the elastic block 50 are substantially the same, and the tip end surface 23 and the upper surface 51 of the elastic block are formed on substantially the same surface. Further, the shape, size, and thickness of the elastic block 50 are determined so that the elastic block side surface 53 and the main body side surface 29 are located on the same plane perpendicular to the main body bottom surface 27. The elastic block 50 having such a shape design is made of a material having elasticity, and maintains elasticity to some extent in the winter when the temperature drops.
A material such as rubber having durability and abrasion resistance is preferable.

The method of assembling the interlocking block 10 of FIG. 1 is a method of fitting the elastic block 50 from above the projecting portion 22 of the concrete block 20 and fitting the hollow portion 31 and the projecting portion 22 together. An adhesive or the like may be used for this, but it can be sufficiently retained without using it. Furthermore, the cavity 31 of the elastic block 50
The lower part of the is formed with a recess extending downward so as to follow the protruding portion reinforcing portion 26. In the interlocking block 10 thus combined, the tip end surface 23 of the concrete block and the upper surface 51 of the elastic block are arranged on the same plane and exposed upward.

FIG. 4 is a perspective view showing a paved state by laying a plurality of interlocking blocks 10 having the above structure. As the construction method, first, the concrete block 20 is spread on the laid surface 70 that is dug flat, the projections 22 of the concrete block 20 are arranged adjacent to each other, and the elastic blocks 50 are combined one by one from the top. is there. In addition, there is also a method in which the concrete block 20 and the elastic block 50 are fitted to each other in advance to form the interlocking block 10, and the interlocking blocks 10 are laid adjacent to each other. In any case, no adhesive or the like is required, and the work is simply performed by fitting the concrete block 20 and the elastic block 50 together and lining them up in a dense and orderly manner.

The paved road constructed in this way has an upper surface 51 of the elastic block and a tip surface 23 of the concrete block.
Is exposed to form the road surface, but the concrete block 2 has the strength against the impact necessary for the road surface.
The shapes of both 0 and the elastic block 50 are elaborated. The protruding portion 22 of the concrete block is the tire 8
Since 0 etc. are directly placed and contacted, they are easily destroyed. Therefore, if the height of the protruding portion 22 is reduced in order to increase the strength, the elastic block 50 itself may easily come off and come off. Interlocking block 10 of the present embodiment
Has strength by providing a chamfered portion 25 and a reinforcing portion 26.

By providing a protruding portion reinforcing portion 26 at the fragile portion of the base of the protruding portion 22, it is possible to disperse the force applied from the tip end surface 23 and maintain the shape of the protruding portion 22 stably for a long period of time. I am trying. Further, since the force applied from the elastic block 50 is also received by the inclined surface of the protruding portion reinforcing portion 26, the force can be easily dispersed. Further, the protrusion chamfered portion 25 not only means that the chamfered portion 25 is easily chipped, but also when the tire 80 or the like passes through, the chamfered portion 25 is flexibly covered with the elastic block 50. The state is as shown in FIG. 5B, and the corner portions of the protruding portion 22 are protected to avoid direct contact with the tire 80, the blade of the snow plow, and the like.

Further, with respect to the elastic block 50, by engraving sawtooth-like irregularities on the inner wall surface 52 of the cavity 31,
The concrete block 20 bites into the unevenness, and the elastic block 50 can be made difficult to come off from the concrete block 20.

FIG. 5 (a) is a sectional view of the interlocking block 10 of FIG. 1 when spread. In this way, the elastic blocks 50 are incorporated into the concrete block 20 to alternately form the road surface, so that the elastic blocks 5
An elastic force of 0 can be effectively used. For example, when the vehicle brakes, the elastic block 50 bends so that the tire 80 bites into the concrete block 20 and is unlikely to slip.

When the road surface is frozen, the elastic block 50 is bent by the passage of the tire 80, and the ice stretched on the elastic block 50 can be cracked efficiently. The ice thus broken peels off and freezes more quickly than on a normal road.
Further, if a rubber colored in black is used for the elastic block 50, the ice tends to melt due to the collection of sunlight, and it becomes more difficult to freeze and freeze than ordinary asphalt or concrete pavement even at midnight when the temperature drops.

The water, precipitation, etc. thus dissolved are efficiently drained from the boundary between the interlocking blocks 10 and permeate into the ground, and they do not form a water pool on the road surface, which prevents slipping and prevents icing. As a safe and good condition. In this way, the interlocking block 10 that is resistant to freezing in winter is particularly suitable for paving roads that are highly risky due to slips at intersections and immediately before crossing.

Furthermore, the present invention is not limited to this embodiment, and various design changes are possible. As shown in FIG. 6, the tip surface 23 of the concrete block that forms the road surface is not limited to a rectangle but can be variously designed in a circle, a hexagon, a cross shape, and the like. 26 and the protruding portion chamfered portion 25 may be arranged in the same manner as described above. Along with this, the elastic block 50 is also formed so as to surround the side surface 24 of the protruding portion. For example, if the tip end surface 23 is formed in a circular shape, the protrusion chamfered portion 2
Since 5 is also formed in a circular shape and has no corners, it is strong against impact and is unlikely to lose its shape.

Further, as shown in FIG. 7, a plurality of projecting portions 22 may be provided for one concrete block, and a plurality of cavity portions 31 of the elastic block may be provided accordingly. According to this, the fitting portion with the elastic block 50 increases, and the elastic block 50 can be made difficult to come off from the concrete block 20.

Further, the interlocking block 10 is
Considering that the main body side surface 29 and the elastic block side surface 53 are adjacently spread and used, the main body side surface 29 and the elastic block side surface 53 may have a corrugated shape in which unevenness is continuous in a direction parallel to the main body bottom surface 27.
As a result, the adjacent interlocking block 10
Not only can they be fitted together to prevent misalignment, but also the road surface can be made geometrically beautiful. In this case, the side surfaces of the concrete block 20 and the elastic block 50 may be provided with irregularities separately.
Alternatively, as shown in FIG. 8, when the interlocking block 10 is formed, the side surface 2 of the main body portion is formed into a columnar shape.
9 and the elastic block side surface 53 may be aligned so as to be located on the same surface to form the unevenness.

As a construction method when the concavities and convexities are provided separately, first, the adjacent concrete blocks 20 are spread over one surface while being fitted, and then the elastic block 50 and the concrete block 20 are combined with the adjacent elastic blocks. It is good to lay it while fitting it on both 50. If the side surfaces of the entire interlocking block 10 are aligned and provided with unevenness, the concrete block 20
The elastic blocks 50 may be combined with each other after being spread, or the interlocking blocks 10 may be combined with each other and then spread on the road. In any case, the interlocking blocks 10 adjacent to each other are spread so as to be meshed with each other, so that the positional deviation can be prevented.

Further, the elastic block 50 may be manufactured in a plate shape in which a plurality of elastic blocks 50 are connected adjacent to each other. That is, considering how to arrange the concrete blocks 20 when paving,
A plurality of cavities 31 are arranged and formed in a plate shape having a thickness corresponding to the height of the protrusion 22. In this case, if a drainage hole is provided in the hollow portion 31 and in an intermediate portion between the hollow portions 31 so as to be located above the adjacent portions of the main body side surfaces 29, water such as precipitation can be efficiently drained. In the method of implementing this form, since a plurality of concrete blocks 20 are spread and then the sheet-like elastic block 50 is covered and fitted,
As described above, the elastic block 50 and the concrete block 20 do not have to be engaged one by one, and the operation is simply performed.

In addition, as shown in FIG. 9, the interlocking block 10 described above may be laid upside down and the bottom surface 27 of the main body portion may be exposed as a road surface for use as a sidewalk. In this case, the protrusion 2 is larger than the cavity 31.
It is advisable to make the size of 2 slightly smaller as a whole including the height. Then concrete block 20 and elastic block 5
The position where these come into contact with each other when 0 is combined is the protrusion 2
Only the main body portion 21 around the base of 2 and the support surface 32 on the bottom surface of the elastic block are provided, and the tip end surface 23 comes to a position slightly lower inward than the upper surface 51 of the elastic block. Further, the edge of the bottom surface 27 of the main body is chamfered so that the chamfered portion 2
8 should be provided.

Interlocking block 10 of this example
In the construction method, the elastic blocks 50 are first arranged adjacent to each other on the laid surface 70 that is dug flat, the protrusions 22 are fitted into the hollow portions 31, and the bottom surface 27 of the main body portion is exposed upward to form the road surface. . Alternatively, the elastic block 50 and the concrete block 20 may be fitted together and then spread. In any case, the support surface 32 and the main body portion 2 in contact therewith
No. 1 may be adhered, but it is not necessary to be adhered. In this state, the upper surface 51 of the elastic block is in contact with and supported by the laying surface 70, and the concrete block 20 thereon is supported by being in contact with the supporting surface 32 around the root of the projecting portion 22. is there. That is, the space 30 is provided around the protrusion 22.

According to this structure, when a force is applied to the bottom surface 27 of the main body forming the road surface, the elastic block 50 bends and sinks, and the concrete block 20 also sinks accordingly, so that elasticity can be exerted. By providing elasticity, the legs will not be burdened when walking or running, and it is ideal not only for sidewalks but also for playgrounds used for jogging and sports, parks, etc.

The sidewalk interlocking block 10 can be designed in various ways.
FIG. 10 shows another embodiment and shows a cross-sectional view when the interlocking block 10 is used. As shown in FIG. 11, the concrete block 20 used has a convex cross section with respect to the cut in one direction, and
Of the body portion side surface 29 and the protruding portion side surface 24 located at the top and bottom of the pair, two pairs facing each other are formed on the same plane.

On the other hand, the elastic block 50 is made of a plate-shaped elastic body as shown in FIG. 12, and its shape is bent into a corrugated shape having a certain uneven portion. That is, a hollow portion that covers the protruding portion 22 is provided as a corrugated recessed portion 56, and the protruding portion 55 is formed so as to be fitted in the recessed portion 34 formed between the protruding portions of the plurality of adjacent concrete blocks 20.
At the apex of the bent convex portion 55 between the concave portions 56, it is preferable to have a flat supporting surface 32, and the supporting surface 32 and the concave portion 56 have a plurality of drain holes 33 penetrating therethrough. Further, in a surface continuous from the support surface 32 to the recess 56, a slope is provided so as to correspond to the protruding portion reinforcing portion 26. Then, the concave portion 56 is
The depth and the width of the protrusion 22 are generally larger than that of the protrusion 22 so that the space 30 is formed around the protrusion when they are fitted together.

In the road surface enforcing method in this case, first, a flat elastic block 50 is laid on a flatly dug down laying surface 70, and a concrete block 20 is recessed on the laying surface.
6 and the protrusion 22 are fitted so that the protrusion 22 is aligned downward. At this time, the main body 21 around the base of the protrusion 22 is disposed so as to contact the support surface 32 of the elastic block. Then, in the concrete block 20 fitted adjacent to the same concave portion 56 of the elastic block 50, since the main body side surface 29 and the projecting side surface 24 are located on the same plane, they can be brought into close contact with each other.

With this structure, the position where the concrete block 20 is supported is limited to the support surface 32. That is, the space 30 is provided not only between the tip end surface 23 and the inner bottom surface 57 of the recess facing the tip end surface 23 but also between the protrusion 22 and the recess 56. As a result, when a force is applied to the bottom surface 27 of the main body, which is the road surface, the elastic block 50 bends, and the concrete block 20 sinks to generate elasticity. In addition, since the drainage holes 33 are provided in the support surface 32 and the concave portion 56, the concrete block 2
Drainage such as precipitation that has passed through the gap between 0s is efficiently performed.

The concrete block 20 may be formed in a convex shape similar to that shown in FIG. 9 in order to provide a more stable road surface. At this time, in the elastic block, the hollow portion 31 is formed in a hollow shape so as to cover the four protruding portion side surfaces 24 and the tip end surface 23, and is formed in a plate shape having a plurality of these. According to this concrete block 1
The number of supporting surfaces 32 that contact one another is increased to four, so that a more stable road surface can be provided. Comparing these embodiments with the sidewalk interlocking block of FIG. 9, since the plate-like elastic block 50 is laid between the laying surface 70 and the protrusion 22, the space below the protrusion 22 is reduced. The part 30 is stably held, and the elasticity can also be maintained.

[0035]

According to the interlocking block of the present invention, it is possible to provide a safe road because it is hard to freeze even in the winter and is easy to thaw even if it freezes. Furthermore, since the structure is simple, it can be easily installed, the road surface is not easily destroyed, and it can be stably maintained for a long period of time. It has a wide range of applications and can be used as an interlocking block for sidewalks by utilizing its elasticity.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an interlocking block according to the present invention.

2 is a perspective view of a concrete block used for the interlocking block of FIG. 1. FIG.

FIG. 3 is a perspective view of an elastic block used in the interlocking block of FIG.

FIG. 4 is a perspective view showing a road surface state using an interlocking block.

FIG. 5 is a sectional view of a road surface using an interlocking block.

FIG. 6 is a perspective view showing an embodiment of an interlocking block.

FIG. 7 is a perspective view showing an embodiment of an interlocking block.

FIG. 8 is a perspective view showing an embodiment of an interlocking block.

FIG. 9 is a cross-sectional view showing a usage state of a sidewalk interlocking block.

FIG. 10 is a sectional view showing a usage state of another interlocking block for sidewalks.

11 is a perspective view of a concrete block used for the sidewalk interlocking block of FIG. 10. FIG.

12 is a perspective view of an elastic block used in the sidewalk interlocking block of FIG.

[Explanation of symbols]

10 Interlocking block 20 concrete blocks 21 body 22 Projection 23 Tip surface 24 Side of protrusion 25 Chamfering part of protrusion 26 Projection part reinforcement 27 Body bottom 28 Chamfer 29 Body side 30 space 31 Cavity 32 support surface 33 drainage hole 34 Dimple 50 elastic blocks 51 upper surface 52 Inner wall surface 53 Elastic block side 54 Elastic block bottom 55 convex 56 recess 57 Bottom surface inside recess 70 Laying surface 80 tires

Claims (12)

[Claims] 1. A concrete block having a projecting portion formed in a main body and having a convex cross section, and an elastic block having elasticity and fitted to the concrete block by surrounding a side surface of the projecting portion in an annular shape. An interlocking block, characterized in that, when the concrete block and the elastic block are fitted together, the tip end surface of the protrusion and the top surface of the elastic block surrounding the tip end surface are on substantially the same plane. Interlocking block. 2. The interlocking block according to claim 1, wherein the elastic block is formed in a plate shape in which a plurality of hollow portions into which the protrusions are fitted are arranged. 3. The interlocking block according to claim 1, wherein an end edge of a tip end surface of the protrusion is chamfered. 4. The base of the protrusion is reinforced by being continuous with the main body so that the hem extends from the lower part of the four side surfaces of the protrusion at a constant angle. The interlocking block according to 1, 2, or 3. 5. The interlocking block according to claim 1, wherein the inner wall surface of the elastic block facing the protruding portion is provided with irregularities. 6. The interlocking block according to claim 1, 2, 3, 4 or 5, wherein the concrete block and the elastic block are fitted to each other, and a tip end surface of the protrusion and an upper surface of the elastic block are provided. A method for constructing a road surface, which is characterized by exposing the roof to the upper side and laying it on the laying surface. 7. An interlocking block comprising a concrete block having a convex cross section in which a protrusion is formed in a main body, and an elastic block having elasticity and a cavity into which the protrusion is fitted, An interlocking block characterized in that, when the elastic block and the concrete block are fitted together, the tip end surface of the projecting portion is located inside the hollow portion and does not project outward from the surface of the elastic block. . 8. The interlocking block according to claim 7, wherein an edge of the bottom surface of the main body is chamfered. 9. The interlocking block according to claim 7 or 8, wherein the concrete block and the elastic block are fitted to each other, and the bottom surface of the main body is exposed upward, and the interlocking block is spread over the laying surface. Road surface construction method. 10. A plurality of concrete blocks, each of which has a protrusion formed on the main body and has a recess between the protrusions when a plurality of protrusions are arranged, and a protrusion having elasticity and fitted into the recess. Is an interlocking block consisting of an elastic block having a corrugated cross section in which concave portions into which the projecting portion and the projecting portion enter are alternately formed, and when the concrete block and the elastic block are fitted to each other, An interlocking block, wherein a space is formed between a tip surface and a bottom surface of the recess. 11. The interlocking block according to claim 10, wherein an edge of the bottom surface of the main body of the concrete block is chamfered. 12. The interlocking block according to claim 10 or 11, wherein the concrete block and the elastic block are fitted to each other, and the bottom surface of the main body is exposed upward, and the interlocking block is laid on the laying surface. Road surface construction method.