JP5426302B2 - Water retention block and water retention block manufacturing equipment - Google Patents

Description

  The present invention relates to a water retention block having a thin plate shape and a water retention block manufacturing apparatus.

Conventionally, various techniques for preventing a rise in the temperature of a building have been developed for the purpose of suppressing the heat island phenomenon, such as rooftop greening and wall greening.
The technique described in Patent Document 1 has relatively large voids between relatively large aggregates on the upper surface side, and relatively small voids between relatively small aggregates on the lower surface side, and further has water retention. A plurality of porous plates formed of porous concrete having water permeability are installed on a concrete slab on the roof of a building. The voids in the porous plate are filled with planting soil, so that plant seedlings and seeds can be planted.

Japanese Patent Laid-Open No. 10-136772

By the way, in recent years, there is an increasing demand for greening a building using a block material such as the porous plate described in Patent Document 1 even in a private house.
However, even porous concrete with many voids has a problem that if the thickness is large, it becomes heavier and the burden on the building increases. Therefore, there is a demand to make the block material as thin as possible, but if it is made thin, it may be difficult to maintain and improve the strength of the block material itself.
In addition, if the block material is made thinner in this way, it is inevitable to reduce the amount of water retention compared to a thick block material made of the same material, not only maintaining and improving the strength of the block material, Development of technology that can absorb water efficiently has been desired.

  An object of the present invention is to provide a water-retaining block and a water-retaining block manufacturing apparatus that can improve strength and can absorb water efficiently.

The invention according to claim 1 is, for example, as shown in FIGS. 1 to 5, water retaining blocks 1, 2, 3 exhibiting a thin flat plate shape,
A resin tray 10, 20, 30 an open top with being set to a predetermined height,
It is placed in the trays 10, 20, and 30 and is fixedly housed integrally in the trays 10, 20, and 30, and is composed of porous concrete 11, 21, 31 having water retention performance and water permeability performance,
The trays 10, 20, and 30 include bottom plate portions 12, 22, and 32, and side plate portions 13, 23, and 33 that rise from the peripheral edge portions of the bottom plate portions 12, 22, and 32.
The bottom plate portions 12, 22, and 32 communicate the inside and the outside of the trays 10, 20, and 30 with holes 12 a, 22 a, and 32 a that are larger than the particle size of the aggregate of the porous concrete 11, 21, 31. Is formed ,
The upper end surface of the tray 10, 20, 30 and the upper surface of the porous concrete 11, 21 and 31, characterized in flush der Rukoto.

  The water-retaining blocks 1, 2 and 3 are, for example, pumice having a particle size of 3 to 20 mm (dry specific gravity is 0.4) 50 to 62 without adding sand and without adding an additive for enhancing strength. A mixture of 40% to 50% by weight of water and a mixture of 50% to 38% by weight of Portland cement and ready-mixed ready-mixed concrete in a mold can be mentioned.

According to the invention described in claim 1, the porous concrete 11, 21, 31 is placed in the trays 10, 20, 30 and is fixedly accommodated integrally in the trays 10, 20, 30. Therefore, even if the porous concrete 11, 21, 31 is made thin so that the strength cannot be maintained alone, it is possible to reliably prevent the strength of the porous concrete 11, 21, 31 from being lowered. Therefore, for example, the water retaining blocks 1, 2, and 3 having a thin plate thickness can be reliably obtained as compared with a water retaining block made of porous concrete having a thickness capable of maintaining the strength alone.
The porous concrete 11, 21, 31 is placed in the trays 10, 20, 30, and is integrally fixed and stored in the trays 10, 20, 30. Can be used as a mold of the porous concrete 11, 21, 31. As a result, it is not necessary to form the porous concrete 11, 21, 31 in advance so as to correspond to the shape of the trays 10, 20, 30. The water retaining blocks 1, 2, and 3 can be easily formed.
Further, the bottom plate portions 12, 22, 32 communicate with the inside and the outside of the trays 10, 20, 30 and the holes 12 a, 22 a larger than the aggregate particle size of the porous concrete 11, 21, 31. 32a are formed, the aggregate of the porous concrete 11, 21, 31 is protruded from the plurality of holes 12a, 22a, 32a, and the trays 10, 20, 30 are placed. It can be brought into contact with the floor surface or the like. As a result, water can be absorbed not only from the upper opening of the trays 10, 20, and 30 but also from the bottom plate parts 12, 22, and 32 side, for example, as compared to a water retaining block using a tray that opens only at the upper part. , Can absorb water efficiently.

The invention according to claim 2 is, for example, as shown in FIG. 3, in the water retention block 1 according to claim 1,
The bottom plate portion 12 is formed integrally with the bottom plate portion 12 and has a plurality of cylindrical projecting leg portions 17 projecting downward from the peripheral portions of the plurality of hole portions 12a. It is characterized by being.

  According to the invention described in claim 2, the bottom plate portion 12 is formed integrally with the bottom plate portion 12, and a plurality of cylinders projecting downward from the peripheral portions of the plurality of hole portions 12a. The tray 10 can be supported at a predetermined height by the plurality of protruding leg portions 17. Accordingly, for example, water can be spread evenly below the bottom plate portion 12 as compared with a case where the bottom plate portion 12 is placed on a floor surface or the like, so that water can be absorbed from the bottom plate portion 12 side. In this case, water can be absorbed more efficiently without distinction between the hole 12a on the peripheral side of the bottom plate 12 and the hole 12a on the center side.

The invention described in claim 3 is, for example, as shown in FIG. 3, in the water retention block 1 according to claim 2,
The porous concrete 11 protrudes downward from the lower end portions of the projecting leg portions 17 by a predetermined dimension from the plurality of hole portions 12a through the projecting leg portions 17 (for example, Protruding part 11a),
The protruding dimension is set to 3 mm to 5 mm.

According to the third aspect of the present invention, the porous concrete 11 has a predetermined dimension from the plurality of hole portions 12a through the plurality of projecting leg portions 17 to a lower end of the projecting leg portions 17. Since it protrudes downward from the part and the protrusion dimension is set to 3 mm to 5 mm, water can be reliably absorbed from the part protruding downward from the lower end of the projecting leg 17, and water can be absorbed more efficiently. become.
Further, when the porous concrete 11 is protruded below the lower end portion of the projecting leg portion 17, for example, the porous concrete 11 is not protruded below the lower end portion of the projecting leg portion 17. In comparison, since the degree of coupling between the tray 10 and the porous concrete 11 can be increased, the porous concrete 11 is less likely to be detached from the tray 10.

The invention according to claim 4 is, for example, as shown in FIGS. 4 and 5, in the water retaining blocks 2 and 3 according to claim 1,
The porous concrete 21, 31 protrudes below the lower surfaces of the bottom plate portions 22, 32 by a predetermined dimension from the plurality of holes 22 a, 32 a,
The portions protruding below the bottom surfaces of the bottom plate portions 22 and 32 are leg portions 21a and 31a.
The protruding dimensions of these leg portions 21a and 31a are set to 3 mm to 12 mm.

According to the invention of claim 4, the porous concrete 21, 31 protrudes below the lower surfaces of the bottom plate portions 22, 32 by a predetermined dimension from the plurality of holes 22 a, 32 a, Since the portions protruding below the lower surfaces of the bottom plate portions 22 and 32 are leg portions 21a and 31a, the trays 20 and 30 can be supported at a predetermined height by the leg portions 21a and 31a. Accordingly, for example, the bottom plate portions 22 and 32 can be evenly distributed below the bottom plate portions 22 and 32 as compared with the case where the bottom plate portions 22 and 32 are placed on the floor surface or the like. When water is absorbed from the side 22 and 32, water can be absorbed more efficiently without distinction between the peripheral holes 22a and 32a and the central holes 22a and 32a.
Further, since the protruding dimensions of the leg portions 21a and 31a are set to 3 mm to 12 mm, water can be reliably absorbed from the leg portions 21a and 31a, and water can be absorbed more efficiently.
Further, the porous concrete 21, 31 is caused to protrude below the lower surfaces of the bottom plate portions 22, 32 by a predetermined dimension from the plurality of holes 22 a, 32 a, for example. The degree of coupling between the trays 20 and 30 and the porous concrete 21 and 31 can be increased as compared with the case where the plurality of holes 22a and 32a are not protruded below the lower surfaces of the bottom plate portions 22 and 32. As a result, the porous concrete 21, 31 is less likely to be detached from the trays 20, 30.

The invention according to claim 5 is, for example, as shown in FIG. 5, in the water retaining block 3 according to claim 4,
The leg portion 31a is formed to be larger than the opening width of the plurality of hole portions 32a.

  According to the invention described in claim 5, since the leg portion 31a is formed to be larger than the opening width of the plurality of hole portions 32a, the porous concrete 31 and the leg portion 31a in the tray 30 are formed. As a result, the bottom plate portion 32 of the tray 30 is sandwiched. As a result, the bonding strength between the tray 30 and the porous concrete 31 can be reliably increased, so that the porous concrete 31 can be reliably prevented from being detached from the tray 30.

The invention according to claim 6 is a water retaining block 100 having a thin plate shape, for example, as shown in FIGS.
A resin tray 110 with its upper part open while being set to a predetermined height,
It is placed in the tray 110 and is integrally fixed and accommodated in the tray 110, and is composed of porous concrete 111 having water retention performance and water permeability performance,
The tray 110 includes a bottom plate portion 112 and a side plate portion 113 that rises from a peripheral portion of the bottom plate portion 112.
The bottom plate portion 112 is separated by forming a perforation 112a for separation along the entire circumference of the bottom plate portion 112 with a predetermined interval inside the outer peripheral edge of the bottom plate portion 112. The inner portion 112b of the perforation 112a is configured to be detachable ,
The upper end surface of the tray 110 and the upper surface of the porous concrete 111 wherein flush der Rukoto.

According to the sixth aspect of the present invention, the porous concrete 111 is placed in the tray 110 and is integrally fixed and accommodated in the tray 110. Even if the thickness of the porous concrete 111 is reduced, the strength of the porous concrete 111 can be reliably prevented from decreasing. Therefore, for example, a water retaining block 100 having a thin plate thickness can be reliably obtained as compared with a water retaining block made of porous concrete having a thickness capable of maintaining strength alone.
Further, since the porous concrete 111 is placed in the tray 110 and integrally fixed and stored in the tray 110, the tray 110 can be used as a formwork of the porous concrete 111. Accordingly, the porous concrete 11 does not need to be molded in advance so as to correspond to the shape of the tray 110, so that it is only necessary to place the porous concrete 11 in the tray 110, and the water retaining block 100 can be easily formed. it can.
Further, the bottom plate portion 112 is formed by forming a perforation 112a for cutting along the inner periphery of the outer peripheral edge of the bottom plate portion 112 and forming a cutting perforation 112a linearly over the entire circumference of the bottom plate portion 112. Since it is configured to be able to separate the portion 112b inside the separation perforation 112a, for example, unlike the case of forming a hole in the bottom plate portion 112 to improve the water absorption efficiency, in the tray 110, It is possible to reliably prevent the porous concrete 111 from being excessively discharged from the hole portion by pouring the porous concrete 111 excessively. Thereby, the operation of placing the porous concrete 111 into the tray 110 can be easily and reliably performed without considering that the porous concrete 111 comes out of the hole.
Moreover, after the porous concrete 111 is hardened, the bottom surface of the porous concrete 111 can be largely exposed downward by cutting off the portion 112b inside the cutting perforation 112a of the bottom plate portion 112. As a result, water can be absorbed not only from the opening at the top of the tray 110 but also from the bottom plate portion 112 side. Therefore, for example, water can be absorbed efficiently compared to a water retention block using a tray having an opening only at the top. .

The invention described in claim 7 is, for example, as shown in FIGS. 6 to 8, in the water retention block 100 according to claim 6,
The tray 111 includes at least one horizontal portion 112c provided horizontally along the circumferential direction of the tray 111.

  According to the invention described in claim 7, since the tray 111 includes at least one horizontal portion 112c provided horizontally along the circumferential direction of the tray 111, the porous concrete 111 is solidified, and the bottom plate It is possible to reliably support the porous concrete 111 by the horizontal portion 112c after the bottom surface of the porous concrete 111 is largely exposed downward by separating the portion 112b inside the separation perforation 112a of the portion 112. It is possible to reliably prevent the porous concrete 111 from falling out of the tray 110.

The invention described in claim 8 is, for example, as shown in FIGS. 6 to 8, in the water retention block 100 according to claim 6 or 7,
The bottom plate portion 112 has a plurality of recessed portions 112d formed so as to be recessed in the thickness direction of the bottom plate portion 112.

According to the eighth aspect of the present invention, the bottom plate portion 112 has a plurality of recess portions 112d formed so as to be recessed in the thickness direction of the bottom plate portion 112, so that the inside of the plurality of recess portions 112d. The porous concrete 111 can be filled.
And, the portion of the porous concrete 111 filled in the plurality of depressions 112d is in a state of projecting downward after the part 112b inside the separation perforation 112a of the bottom plate part 112 is cut off. By appropriately setting the depth of the portion 112d, the plurality of protruding portions can be used as the leg portions 111a that support the water retaining block 100 itself.
Accordingly, for example, compared with the case where the bottom plate portion 112 is mounted on the floor surface or the like, water can be distributed evenly below the bottom plate portion 112, so that water can be absorbed from the bottom plate portion 112 side. In this case, water can be absorbed more efficiently without discrimination between the peripheral side and the center side of the porous concrete 111.

The invention according to claim 9 is, for example, as shown in FIG. 1 to FIG.
The trays 10, 20, 30, 110 are formed in a square shape in plan view,
The height dimension is set to 20 mm to 40 mm, and the length of one side is set to 200 mm to 500 mm.

  According to invention of Claim 9, the said tray 10,20,30,110 is formed in planar view square shape, The height dimension is set to 20 mm-40 mm, The length of one side is set Since it is set to 200 mm to 500 mm, the porous concrete 11, 21, 31, 111 is not protruded from the upper opening of the trays 10, 20, 30, 110. Thus, the water retaining blocks 1, 2, 3, 100 having a small plate thickness can be obtained more reliably.

The invention according to claim 10 is the water retaining block 1, 2, 3, 100 according to any one of claims 1 to 9, for example, as shown in FIGS.
The inner side surfaces of the side plate portions 13, 23, 33, 113 protrude from the height near the center of the inner side surface toward the center side of the trays 10, 20, 30, 110, and the bottom plate portions 12, 22, 32. , 112 is provided with ribs 16, 26, 36, 116 facing each other.

  According to the invention described in claim 10, the inner surface of the side plate portions 13, 23, 33, 113 is directed from the height near the center of the inner surface toward the center of the tray 10, 20, 30, 110. Since the ribs 16, 26, 36, 116 that protrude and face the bottom plate portions 12, 22, 32, 112 are provided, the porous concrete 11, 21, above the ribs 16, 26, 36, 116 is provided. The ribs 16, 26, 36, 116 are sandwiched between 31, 111 and porous concrete 11, 21, 31, 111 below the ribs 16, 26, 36, 116. As a result, the bonding strength between the trays 10, 20, 30, 110 and the porous concrete 11, 21, 31, 111 can be further increased, so that the porous concrete 11, 21, 31, 111 is attached to the tray 10, Desorption from 20, 30, 110 can be more reliably prevented.

The invention described in claim 11 has a flat plate shape with a small plate thickness, for example, as shown in FIGS.
A bottom plate portion 12, 22 having a predetermined height dimension and having an opening at the top and a plurality of holes 12a ..., 22a ... communicating between the inside and the outside, and the bottom plate portions 12, 22 Trays 10 and 20 having side plate portions 13 and 23 rising from the peripheral portion;
It is made of an aggregate having a particle size smaller than the opening diameter of the plurality of holes 12a ..., 22a ..., and is cast into the trays 10, 20 and integrated into the trays 10, 20 fixed housing, Ri Do from the porous concrete 11 and 21 having a water retention performance and water permeability,
The upper end surface of the tray 10, 20 and the upper surface of the porous concrete 11 and 21 is a manufacturing apparatus 40 of the water-holding blocks 1 and 2 Ru flush der,
A bottom surface portion 41 on which a plurality of the trays 10 and 20 are arranged side by side;
It is provided between the bottom surface portion 41 and the bottom plate portions 12 and 22 of the plurality of trays 10, 20... And between the bottom surface portions 12 and 22 and the bottom plate portions 12 and 22 of the plurality of trays 10 and 20. A plurality of spacers 42... 43 forming gaps therebetween,
The plurality of spacers 42, 43,... Are characterized in that the height dimension is set to 3 mm to 5 mm.

According to the eleventh aspect of the present invention, there is a bottom surface portion 41 on which a plurality of the trays 10 and 20 are arranged side by side, and between the bottom surface portion 41 and the bottom plate portions 12 and 22 of the plurality of trays 10. And a plurality of spacers 42... 43 forming gaps between the bottom surface portions 12 and 22 and the bottom plate portions 12 and 22 of the plurality of trays 10 and 20. 42, 43, the trays 10 and 20 can be supported above the bottom surface portion 41 at a predetermined height. As a result, a gap can be formed between the bottom plate portions 12 and 22 of the trays 10 and 20 and the bottom surface portion 41. Therefore, the aggregates of the porous concrete 11 and 21 placed in the trays 10 and 20 are It can be made to protrude reliably from the plurality of holes 12a. Therefore, water can be reliably absorbed from the portion protruding from the plurality of holes 12a, 22a, and water can be absorbed efficiently.
The water retaining blocks 1 and 2 manufactured by such a manufacturing apparatus 40 place the porous concrete 11 and 21 in the trays 10 and 20 and integrally fix and store them in the trays 10 and 20. Therefore, even if the porous concrete 11 and 21 is made thin enough that the strength cannot be maintained alone, it is possible to reliably prevent the strength of the porous concrete 11 and 21 from being lowered. Therefore, for example, the water retaining blocks 1 and 2 having a thin plate thickness can be reliably obtained as compared with a water retaining block made of porous concrete having a thickness capable of maintaining the strength alone.

The invention according to claim 12 has a thin plate shape as shown in FIGS. 1 and 11 to 13, for example.
A bottom plate portion 32 which is set to a predetermined height and has an opening at the top, and further formed with a plurality of holes 32a communicating the inside and the outside, and a side plate portion 33 rising from the peripheral portion of the bottom plate portion 32 A tray 30 comprising:
It is made of an aggregate having a particle diameter smaller than the opening diameter of the plurality of holes 32a, and is placed in the tray 30 and is fixedly accommodated integrally in the tray 30, and has water retention performance and Ri Do from a porous concrete 31 having a water permeability,
The upper surface of the tray 30 and the upper surface of the porous concrete 31 is a manufacturing apparatus 50 of the flush der Ru water retention block 3,
It comprises a main body mold 51 in which a plurality of the trays 30 are juxtaposed,
The main body mold 51 has a placement surface 52 on which the tray 30 is placed, an opening in the placement surface 52, and a plurality of holes 32 a of the tray 30 placed on the placement surface 52. A plurality of recessed hole portions 53 arranged and formed corresponding to the positions,
The opening width of the upper opening 43a of the plurality of concave holes 53 is formed to be larger than the opening width of the plurality of holes 32a of the tray 30,
The depth dimension from the upper opening 53a to the bottom surface 53b of the concave holes 53 is set to 3 mm to 12 mm.

According to the twelfth aspect of the present invention, the main body mold 51 includes the main body mold 51 in which a plurality of the trays 30 are arranged side by side. Since it has an opening in the mounting surface 52 and a plurality of concave hole portions 53 arranged and formed corresponding to the positions of the plurality of hole portions 32a of the tray 30 mounted on the mounting surface 52, By placing the tray 30 on the mounting surface 52, the tray 30 can be supported at a predetermined height from the bottom surface 53b of the concave hole 53. As a result, a gap can be formed between the bottom plate portion 32 of the tray 30 and the bottom surface 53b of the concave hole portion 53, so that the aggregate of the porous concrete 31 placed in the tray 30 can be used as the plurality of holes. It can be made to protrude reliably from the part 32a .... Accordingly, water can be reliably absorbed from the portion protruding from the plurality of holes 32a, and water can be absorbed efficiently.
In addition, since the opening widths of the upper openings 43a of the plurality of concave holes 53 are formed to be larger than the opening widths of the plurality of holes 32a of the tray 30, the plurality of holes The porous concrete 31 protruding from 32a can be shaped to match the shape of the concave holes 53. That is, the bottom plate portion 32 of the tray 30 is sandwiched between the porous concrete 31 in the tray 30 and the porous concrete 31 that protrudes below the bottom plate portion 32. As a result, the bonding strength between the tray 30 and the porous concrete 31 can be reliably increased, so that the porous concrete 31 can be reliably prevented from being detached from the tray 30.
The water retaining block 3 manufactured by such a manufacturing apparatus 50 is constructed by placing the porous concrete 31 in the tray 30 and integrally fixing and storing the porous concrete 31 in the tray 30. Even if 31 is made thin so that the strength cannot be maintained alone, it is possible to reliably prevent the strength of the porous concrete 31 from being lowered. Therefore, for example, a water retaining block 3 having a thin plate thickness can be reliably obtained as compared with a water retaining block composed of porous concrete having a thickness capable of maintaining strength alone.

The invention described in claim 13 is, for example, as shown in FIGS. 1 and 11 to 13, in the water retention block manufacturing apparatus 50 according to claim 12,
The main body mold 51 is a tray housing in which the mounting surface 52 is provided as a bottom surface by providing the mounting surface 52 at a position one step lower than the upper surface 51a of the main body mold 51 and the lower portion of the tray 30 is fitted. Part 51b,
The tray accommodating portion 51b has a mounting surface 52 that is substantially the same size as the bottom plate portion 32 of the tray 30, and the inner peripheral wall surface 51c of the tray accommodating portion 51b It is characterized by being formed so as to be approximately the same size as the outer peripheral surface.

  According to the thirteenth aspect of the present invention, the tray accommodating portion 51b is configured such that the placement surface 52 is substantially equal in size to the bottom plate portion 32 of the tray 30, and the inside of the tray accommodating portion 51b. Since the peripheral wall surface 51c is formed so as to be approximately the same size as the outer peripheral surface of the lower portion of the tray 30, the tray 30 is placed on the mounting surface 52 so as to be fitted into the tray accommodating portion 51b. This makes it easier to set the plurality of trays 30 on the main body mold 51.

According to the present invention, the porous concrete is placed in the tray and integrally fixed and stored in the tray. Therefore, even if the porous concrete is made thin enough that the strength cannot be maintained alone, It can prevent reliably that the intensity | strength of porous concrete falls. Therefore, for example, a water retaining block having a thin plate thickness can be reliably obtained as compared with a water retaining block made of porous concrete having a thickness capable of maintaining strength alone.
In addition, since the porous concrete is placed in the tray and integrally fixed and stored in the tray, the tray can be used as a mold frame for the porous concrete. Accordingly, it is not necessary to mold the porous concrete in advance so as to correspond to the shape of the tray. Therefore, it is only necessary to place the porous concrete in the tray, and the water retaining block can be easily formed.

  Further, the bottom plate portion communicates with the inside and outside of the tray, and a plurality of holes larger than the particle size of the porous concrete aggregate are formed, so that the porous concrete aggregate is removed from the plurality of holes. It can protrude and contact | abut to the floor surface etc. in which a tray is mounted. As a result, water can be absorbed not only from the opening at the top of the tray but also from the bottom plate portion side, so that water can be absorbed efficiently, for example, as compared to a water retention block using a tray that is open only at the top.

Further, by forming a perforation line for separation at a predetermined interval on the inner side of the outer peripheral edge of the bottom plate part and over the entire circumference of the bottom plate part, the bottom perforation is formed from the separation perforation. However, unlike the case of improving the water absorption efficiency by forming a hole in the bottom plate, for example, by pouring porous concrete into the tray excessively, It is possible to reliably prevent extra porous concrete from coming out of the part. Thereby, the operation of placing the porous concrete in the tray can be easily and reliably performed without considering that the porous concrete is excessively discharged from the hole.
In addition, after the porous concrete has hardened, the bottom surface of the porous concrete can be largely exposed downward by cutting off the inner part of the bottom perforation. As a result, water can be absorbed not only from the opening at the top of the tray but also from the bottom plate portion side, so that water can be absorbed efficiently, for example, as compared to a water retention block using a tray that is open only at the top.

It is a perspective view which shows an example of the water retention block of this invention. (A) And (b) shows an example of the tray which comprises the water retention block shown in FIG. 1, and is a perspective view of the state which abbreviate | omitted the rib. It is an expanded side sectional view which shows a part of water retention block shown in FIG. It is an expanded side sectional view which shows a part of water retention block shown in FIG. It is an expanded side sectional view which shows a part of water retention block shown in FIG. It is a bottom side perspective view showing an example of the water retention block of the present invention. It is a part of water retention block shown in FIG. 13, and is an expanded sectional side view which shows the state before cut | disconnecting the part inside the perforation for cutting-off of a baseplate part. It is a part of water retention block shown in FIG. 13, and is an expanded sectional side view which shows the state after cut | disconnecting the part inside the perforation for cutting-off of a baseplate part. It is a perspective view which shows an example of the water retention block manufacturing apparatus of this invention, and has become the state by which the rib of the tray mounted on the apparatus was abbreviate | omitted. It is the elements on larger scale (a) and (b) which show a part of water retention block manufacturing apparatus shown in FIG. It is a perspective view which shows another example of the water retention block manufacturing apparatus of this invention, and has become the state by which the rib of the tray mounted on the apparatus was abbreviate | omitted. It is a partial expanded sectional view which shows a part of water retention block manufacturing apparatus shown in FIG. 11, and a tray. It is a partial expanded sectional view which shows the other example of a part of water retention block manufacturing apparatus shown in FIG. 11, and a tray. It is a perspective view which shows the balcony of the building in which the temperature rise suppression system formed using the water retention block of this invention is provided. It is a perspective view which shows the balcony of the building in which the temperature rise suppression system formed using the water retention block of this invention is provided.

Hereinafter, embodiments of a water retention block and a water retention block manufacturing apparatus of the present invention will be described with reference to the drawings.
Further, as shown in FIGS. 14 and 15, a plurality of water retaining blocks are provided side by side on the floor surface 5 a of the roof of the building 4 or the balcony 5, for example. The floor surface 5a is provided with a plurality of water storage units 6 and 6 in which a plurality of water retaining blocks are laid in parallel along the gradient direction of the floor surface 5a.

(First embodiment of the water retaining block)
FIG. 1 is a perspective view showing an example of a water retaining block according to the present invention.
In FIG. 1, the code | symbol 1 shows this water retention block. The water retaining block 1 has a flat plate shape with a small plate thickness, is set to a predetermined height and is made of a resin tray 10 having an open top, and is placed in the tray 10 and the tray 10. The porous concrete 11 is integrally fixed and accommodated therein and has water retention performance and water permeability performance.

Here, as shown in FIG. 2A, the tray 10 includes a bottom plate portion 12 and a side plate portion 13 that rises from the peripheral edge portion of the bottom plate portion 12.
Further, the tray 10 is formed in a square shape in plan view, the height dimension is set to 20 mm to 40 mm, and the length of one side is set to 200 mm to 500 mm. In the present embodiment, the height dimension is set to 30 mm, and the length of one side is set to 300 mm.
In the present embodiment, such a dimension setting is used, but the present invention is not limited to this, and can be appropriately changed within the range of the height dimension and the length of one side.
Further, the shape in plan view is not limited to a square. That is, for example, a rectangular shape such as a rectangle, a parallelogram, a rhombus, etc. is preferable because there is an advantage that the water retaining blocks 1 can be easily arranged. Furthermore, it is not limited to such a rectangular shape, and any shape may be used as long as it is a shape in which a plurality of water retaining blocks 1 can be easily arranged.

The bottom plate portion 12 is formed in a square shape in a plan view. The bottom plate portion 12 communicates the inside and the outside of the tray 10 and has a hole portion larger than the particle size of the aggregate of the porous concrete 11. A plurality of 12a are formed.
In the present embodiment, the hole portion 12a is formed in a square shape in plan view, like the bottom plate portion 12.

Further, as shown in FIG. 3, the bottom plate portion 12 is formed integrally with the bottom plate portion 12 and has a plurality of cylindrical shapes protruding downward from the peripheral portions of the plurality of hole portions 12 a. It has protruding legs 17.
As shown in FIGS. 2 (a) and 3, the projecting leg 17 is formed so as to project downward from the peripheral edge of the hole 12a formed in the square shape. It has a shape.
In addition, the part which opens downward in the lower end part of this square cylindrical protrusion leg part 17 is called the hole part 17a. The hole portion 17a is positioned so as to face the hole portion 12a formed in the bottom plate portion 12.
The tray 10 can be supported at a predetermined height by the plurality of protruding leg portions 17. Thereby, for example, compared with the case where the bottom plate portion 12 is mounted on the water storage portions 6 and 6 in a solid manner, water can be evenly distributed below the bottom plate portion 12.

Since the side plate portion 13 is made of a resin, it can be easily molded and can be formed thin, and even if the thickness is reduced, a certain level of strength can be ensured.
Moreover, this side plate part 13 has four side surface parts which stand up from the four edge parts of the said baseplate part 12, as shown in FIGS. 1-3. The side plate portion 13 includes convex portions 14 and 14 provided to project from the center portion in the width direction of the two side surface portions of the four side surface portions, and the center portion in the width direction of the remaining two side surface portions. Are provided with recesses 15 and 15, respectively.
Accordingly, when the trays 10 are arranged side by side, the convex portion 14 of one tray 10 among the adjacent trays 10 and 10 can be fitted into the concave portion 15 of the other tray 10.

The side plate portion 13 includes an inclined portion 13a that rises obliquely upward from the four edges of the bottom plate portion 12, a horizontal portion 13b that extends in the horizontal direction from the upper end portion of the inclined portion 13a, and the horizontal portion 13b. And a rising portion 13c rising upward from the extended end portion.
In the present embodiment, the side surface portion refers to the four side surfaces of the rising portion 13 c located at the upper part of the side plate portion 13.

  Since the side plate portion 13 is formed as described above, a cavity can be formed between adjacent trays 10 and 10 by arranging a plurality of trays 10. That is, it indicates a portion surrounded by adjacent inclined portions 13a and 13a and adjacent horizontal portions 13b and 13b. Further, since the cavity between the adjacent trays 10 and 10 has an advantage that it is difficult to visually recognize from the outside, an irrigation pipe or the like may be disposed in the cavity.

On the other hand, as shown in FIG. 1 and FIG. 2A, the protrusions 14 and 14 are formed in a substantially triangular shape in a plan view projecting outward from a side surface portion of the side plate portion 13, and the recess 15 and 15 are formed in a substantially triangular shape in a plan view projecting from the side surface portion toward the inside of the tray 10.
Moreover, the said convex parts 14 and 14 are formed in the magnitude | size corresponding to the said recessed parts 15 and 15, By this, these convex parts 14 and 14 and the recessed parts 15 and 15 come to be able to fit mutually. Yes.

  As described above, the side plate portion 13 includes the convex portions 14 and 14 provided so as to protrude from the center portion in the width direction of the two side surface portions of the four side surface portions, and the width direction of the remaining two side surface portions. By having the recesses 15 and 15 provided in the center part, the joints of the adjacent trays 10 and 10 can be easily and accurately carried out, so that a plurality of water retaining blocks 1 can be easily and accurately spread over the water storage part 6. Be able to.

As shown in FIG. 3, a rib 16 is provided on the inner side surface of the side plate portion 13 so as to protrude from the height near the center of the inner side surface toward the center side of the tray 10 and to face the bottom plate portion 12. Yes.
The ribs 16 are horizontally disposed along the inner peripheral direction of the side plate portion 13.
By providing such a rib 16, the rib 16 is sandwiched between the porous concrete 11 above the rib 16 and the porous concrete 11 below the rib 16. And the bonding strength between the porous concrete 11 can be reliably increased.
Furthermore, the strength of the tray 10 itself can be improved by providing such ribs 16 on the side plate portion 13.

The porous concrete 11 uses the property of evaporating while taking away the heat of the water when the water evaporates, thereby suppressing an increase in the temperature around the place where the porous concrete 11 is installed or promoting a decrease in temperature. It is intended to do.
As the porous concrete 11 of the present embodiment, for example, without mixing sand and without adding an additive to supplement strength, pumice with a particle size of 3 to 20 mm (dry specific gravity is 0.4) 50 to 62% by weight And a mixture of 50 to 38% by weight of Portland cement and 40% to 50% by weight of water mixed and kneaded ready-mixed concrete is put into a mold and hardened. Pumice varies slightly in dry specific gravity depending on the production area, but there is no significant difference.

Moreover, when a compounding ratio is represented by a volume, water 20-30 volume% is sprayed with respect to the compound of pumice (dry specific gravity 0.4) 70-85 volume% and Portland cement 30-15 volume%. Kneaded.
Furthermore, the water content specific gravity of concrete using pumice as such aggregate is about 60% of concrete using only natural aggregate such as cement and crushed stone and Portland cement, and the dry specific gravity is about 50%.

As for water retention performance, the water-containing specific gravity of porous concrete 11 using pumice as an aggregate is about 1200 kg / m ² , and can retain water of about 300 kg / m ³ or more. Moreover, as for the permeation performance, water that cannot be retained by pumice is permeated, so that the same performance as concrete using natural aggregate can be obtained.
That is, when the porous concrete 11 using such pumice as an aggregate is used as a paving material for a paving surface, for example, when the porous concrete 11 is paved with a thickness of 50 mm, the moisture content is 60 kg / m ² and is dried. Since the specific gravity is 45 kg / m ² , it is possible to retain 15 liters of water and have excellent performance.

  It should be noted that the porous concrete 11 in the previous stage (that is, the stage before solidification) placed in the tray 10 has an appropriate viscosity, and after being placed in the tray 10 (that is, solidified). The porous concrete 11 at a later stage is in a state having a continuous gap between the aggregates.

In addition, as shown in FIG. 3, the porous concrete 11 is placed in the tray 10, and thus has a shape as depicted on the inner surface of the tray 10.
That is, the upper surface of the porous concrete 11 is formed to have a larger area than the lower surface. Thereby, the upper part of this porous concrete 11 will overhang rather than the lower part.

In addition, you may plant turf or attach a ceramic tile to the upper surface of the porous concrete 11 of this Embodiment.
Thereby, the part where the porous concrete 11 planted with turf is spread can be greened, and the appearance is excellent.
Moreover, since the ceramic tile is a porous body, even if such a ceramic tile is attached to the upper surface of the porous concrete 11, water that has permeated and retained the porous concrete 11 passes through the ceramic tile. It will surely evaporate. Moreover, since the ceramic tile is attached to the upper surface of the porous concrete 11, the upper surface of the porous concrete 11 can be finished with a taste, and the appearance is excellent.
Furthermore, by arranging the porous concrete 11 to which the ceramic tile is attached and the porous concrete 11 to which the turf is provided, the appearance can be further improved.

Then, as shown in FIG. 3, the porous concrete 11 according to the present embodiment has a predetermined dimension of the protruding leg portions 17 through the plurality of hole portions 12a through the plurality of protruding leg portions 17. Is placed in the tray 10 so as to protrude below the lower end of the tray 10.
This protruding portion is referred to as a protruding portion 11a. Further, the protruding dimension of the protruding part 11a is set to 3 mm to 5 mm. Thus, if a part of the porous concrete 11 protrudes below the lower end portion of the protruding leg portion 17, water can be reliably absorbed from the protruding portion 11 a. Furthermore, the degree of coupling between the tray 10 and the porous concrete 11 can be increased as compared with the case where the protruding portion 11a is not provided.

According to the water retaining block 1 of the present embodiment as described above, the porous concrete 11 is placed in the tray 10 and is fixedly accommodated integrally in the tray 10. However, even if the strength of the porous concrete 11 is reduced so that the strength cannot be maintained by itself, the strength of the porous concrete 11 can be reliably prevented from decreasing. Therefore, for example, it is possible to reliably obtain the water retaining block 1 having a thin plate thickness as compared with a water retaining block composed of porous concrete having a thickness capable of maintaining the strength alone.
Further, since the porous concrete 11 is placed in the tray 10 and fixedly accommodated in the tray 10, the tray 10 can be used as a form of the porous concrete 11. Accordingly, since it is not necessary to form the porous concrete 11 in advance so as to correspond to the shape of the tray 10, it is only necessary to place the porous concrete 11 in the tray 10, and the water retaining block 1 can be easily formed. it can.
Further, the bottom plate portion 12 communicates the inside and outside of the tray 10 and has a plurality of holes 12a larger than the particle size of the aggregate of the porous concrete 11, so that the bone of the porous concrete 11 is formed. The material can protrude from the plurality of holes 12a and abut on the floor surface on which the tray 10 is placed. As a result, water can be absorbed not only from the opening at the top of the tray 10 but also from the bottom plate 12 side, so that water can be absorbed efficiently compared to, for example, a water retaining block using a tray having an opening at the top only. .

  Further, the tray 10 is formed in a square shape in plan view, the height dimension is set to 20 mm to 40 mm, and the length of one side is set to 200 mm to 500 mm. The water retaining block 1 having a small plate thickness can be obtained more reliably by integrally fixing and storing in the tray 10 so as not to protrude from the upper opening of the tray 10.

  The bottom plate portion 12 is formed integrally with the bottom plate portion 12 and has a plurality of cylindrical projecting leg portions 17 projecting downward from the peripheral portions of the plurality of hole portions 12a. Therefore, the tray 10 can be supported at a predetermined height by the plurality of projecting leg portions 17. Accordingly, for example, water can be spread evenly below the bottom plate portion 12 as compared with a case where the bottom plate portion 12 is placed on a floor surface or the like, so that water can be absorbed from the bottom plate portion 12 side. In this case, water can be absorbed more efficiently without distinction between the hole 12a on the peripheral side of the bottom plate 12 and the hole 12a on the center side.

Further, the porous concrete 11 protrudes below the lower end portion of the projecting leg portions 17 from the plurality of hole portions 12a through the plurality of projecting leg portions 17 by a predetermined dimension, Since the protruding dimension is set to 3 mm to 5 mm, water can be reliably absorbed from the portion protruding below the lower end of the projecting leg portion 17, and water can be absorbed more efficiently.
Further, when the porous concrete 11 is protruded below the lower end portion of the projecting leg portion 17, for example, the porous concrete 11 is not protruded below the lower end portion of the projecting leg portion 17. In comparison, since the degree of coupling between the tray 10 and the porous concrete 11 can be increased, the porous concrete 11 is less likely to be detached from the tray 10.

  Further, the inner side surface of the side plate portion 13 is provided with a rib 16 that protrudes from the height near the center of the inner side surface toward the center side of the tray 10 and faces the bottom plate portion 12. The rib 16 is sandwiched between the porous concrete 11 above 16 and the porous concrete 11 below the rib 16. Thereby, since the joint strength between the tray 10 and the porous concrete 11 can be further increased, it is possible to more reliably prevent the porous concrete 11 from being detached from the tray 10.

(Second embodiment of the water retaining block)
Next, a second embodiment of the water retention block of the present invention will be described with reference to the drawings.

As shown in FIGS. 1, 2 (b), and 4, the water retention block 2 of the present embodiment has a thin plate shape and is set to a predetermined height and opened at the top. The resin- made tray 20 and a porous concrete 21 which is placed in the tray 20 and fixedly accommodated integrally in the tray 20 and has water retention performance and water permeability performance.
The tray 20 includes a bottom plate portion 22 and a side plate portion 23 that rises from the peripheral edge of the bottom plate portion 22. The bottom plate portion 22 communicates the inside and the outside of the tray 20, and the porous concrete. A plurality of holes 22a larger than the particle size of the aggregate 21 are formed.

  Here, as shown in FIG. 2B, the bottom plate portion 22 is formed in a square shape in a plan view, and the hole portion 22a is in a plan view in the same manner as the bottom plate portion 22 in the present embodiment. It is formed in a square shape.

  As shown in FIGS. 2B and 4, the side plate portion 23 has four side portions that rise from the four edge portions of the bottom plate portion 22. The side plate portion 23 includes convex portions 24 and 24 that are provided so as to protrude from the center portion in the width direction of two of the four side surface portions, and the center portion in the width direction of the remaining two side surface portions. Are provided with recesses 25, 25, respectively.

  The side plate portion 23 includes an inclined portion 23a that rises obliquely upward from the four edges of the bottom plate portion 22, a horizontal portion 23b that extends in the horizontal direction from the upper end portion of the inclined portion 23a, and the horizontal portion 23b. And a rising portion 23c that rises upward from the extended end portion.

  Further, on the inner side surface of the side plate portion 23, as shown in FIG. 4, a rib 26 that protrudes from the height near the center of the inner side surface toward the center side of the tray 20 and that faces the bottom plate portion 22 is provided. It has been. The ribs 26 are horizontally disposed along the inner circumferential direction of the side plate portion 23.

On the other hand, the porous concrete 21 is placed in the tray 20 as shown in FIG.
That is, the upper surface of the porous concrete 21 is formed so as to have a larger area than the lower surface. Thereby, the upper part of this porous concrete 21 will overhang rather than the lower part.

In addition, you may plant a turf or attach a ceramic tile to the upper surface of the porous concrete 21 of this Embodiment.
Thereby, the part where the porous concrete 21 planted with turf is spread can be greened, and the appearance is excellent.
Further, since the ceramic tile is a porous body, even if such a ceramic tile is attached to the upper surface of the porous concrete 21, water that has permeated and retained the porous concrete 21 passes through the ceramic tile. It will surely evaporate. Moreover, since the ceramic tile is attached to the upper surface of the porous concrete 21, the upper surface of the porous concrete 21 can be given an elegant finish, and the appearance is excellent.
Further, by arranging the porous concrete 21 to which the ceramic tile is attached and the porous concrete 21 to which the turf is provided, the appearance can be further improved.

The porous concrete 21 is placed in the tray 20 so as to protrude below the lower surface of the bottom plate portion 22 by a predetermined dimension from the plurality of hole portions 22a.
Moreover, the part which protruded below the lower surface of the said baseplate part 22 is made into the leg part 21a, and the protrusion dimension of these leg parts 21a is set to 3 mm-12 mm.
In addition, the protrusion dimension of the said leg part 21a in the water retention block 2 of this Embodiment is set to 3 mm-5 mm similarly to the protrusion dimension of the protrusion part 11a in the water retention block 1 of 1st Embodiment. preferable.

According to the present embodiment, the same effect as that of the first embodiment of the water retaining block can be obtained, and the porous concrete 21 can be obtained from the plurality of holes 22a. 22 protrudes downward from the lower surface of the bottom plate 22, and the portion protruding downward from the lower surface of the bottom plate portion 22 is a leg 21a. Therefore, the tray 20 is supported at a predetermined height by the legs 21a. be able to. Accordingly, for example, compared with a case where the bottom plate portion 22 is mounted on the water storage portions 6 and 6 in a solid manner, water can be spread evenly below the bottom plate portion 22, so that the bottom plate portion 22 side When absorbing water from the bottom plate 22, water can be absorbed more efficiently without distinction between the peripheral hole 22 a and the central hole 22 a.
Moreover, since the protruding dimension of the leg portion 21a is set to 3 mm to 12 mm, water can be reliably absorbed from the leg portion 21a, and water can be absorbed more efficiently.
Further, by causing the porous concrete 21 to protrude below the lower surface of the bottom plate portion 22 by a predetermined dimension from the plurality of hole portions 22a..., For example, the porous concrete 21 is allowed to protrude from the plurality of hole portions 22a. ..., the degree of coupling between the tray 20 and the porous concrete 21 can be increased compared to the case where the tray 20 does not protrude below the lower surface of the bottom plate portion 22, so that the porous concrete 21 is detached from the tray 20. It becomes difficult.

(Third embodiment of the water retaining block)
Next, a third embodiment of the water retention block of the present invention will be described with reference to the drawings.

As shown in FIGS. 1, 2 (b), and 5, the water retention block 3 of the present embodiment has a flat plate shape with a thin plate thickness, and is set to a predetermined height and opened at the top. The resin- made tray 30 and a porous concrete 31 which is placed in the tray 30 and fixedly accommodated integrally in the tray 30 and has water retention performance and water permeability performance.
The tray 30 includes a bottom plate portion 32 and a side plate portion 33 rising from the peripheral edge portion of the bottom plate portion 32. The bottom plate portion 32 communicates the inside of the tray 30 with the outside, and the porous concrete. A plurality of holes 33a larger than the particle size of the aggregate 31 are formed.

  Here, as shown in FIG. 2B, the bottom plate portion 32 is formed in a square shape in plan view, and the hole 33a is in plan view in the same manner as the bottom plate portion 32 in the present embodiment. It is formed in a square shape.

  As shown in FIGS. 2B and 4, the side plate portion 33 has four side portions that rise from the four edge portions of the bottom plate portion 32. Then, the side plate portion 33 is formed by projecting portions 34 and 34 projecting from the width direction central portion of the two side surface portions of the four side surface portions, and the width direction central portion of the remaining two side surface portions. Are provided with recesses 35, 35, respectively.

  The side plate portion 33 includes an inclined portion 33a that rises obliquely upward from four edges of the bottom plate portion 32, a horizontal portion 33b that extends in the horizontal direction from the upper end portion of the inclined portion 33a, and the horizontal portion 33b. And a rising portion 33c that rises upward from the extended end portion.

  Further, as shown in FIG. 5, a rib 36 that protrudes from the height near the center of the inner side surface toward the center side of the tray 30 and faces the bottom plate portion 32 is provided on the inner side surface of the side plate portion 33. It has been. The ribs 36 are horizontally disposed along the inner circumferential direction of the side plate portion 33.

On the other hand, the porous concrete 31 is placed in the tray 30 as shown in FIG.
That is, the upper surface of the porous concrete 31 is formed to have a larger area than the lower surface. Thereby, the upper part of this porous concrete 31 will overhang rather than the lower part.

In addition, you may plant a turf or attach a ceramic tile to the upper surface of the porous concrete 31 of this Embodiment.
Thereby, the part where the porous concrete 31 planted with turf is spread can be greened, and the appearance is excellent.
Further, since the ceramic tile is a porous body, even if such a ceramic tile is attached to the upper surface of the porous concrete 31, water that has permeated and retained the porous concrete 31 passes through the ceramic tile. It will surely evaporate. Moreover, since the ceramic tile is attached to the upper surface of the porous concrete 31, the upper surface of the porous concrete 31 can be given an elegant finish, and the appearance is excellent.
Further, by arranging the porous concrete 31 to which the ceramic tile is attached and the porous concrete 31 to which the turf is provided, the appearance can be further improved.

The porous concrete 31 is placed in the tray 30 so as to protrude below the lower surface of the bottom plate 32 by a predetermined dimension from the plurality of holes 33a.
Moreover, the part which protruded below the lower surface of the said baseplate part 32 is made into the leg part 31a, and the protrusion dimension of these leg parts 31a is set to 3 mm-12 mm.
Further, as shown in FIG. 5, these leg portions 31a are formed to be larger than the opening widths of the plurality of hole portions 32a.

  According to the present embodiment, the same effect as the first and second embodiments of the water retention block can be obtained, and the leg portion 31a is larger than the opening width of the plurality of hole portions 32a. Therefore, the bottom plate portion 32 of the tray 30 is sandwiched between the porous concrete 31 and the leg portion 31a in the tray 30. As a result, the bonding strength between the tray 30 and the porous concrete 31 can be reliably increased, so that the porous concrete 31 can be reliably prevented from being detached from the tray 30.

(Fourth embodiment of water retaining block)
Next, a fourth embodiment of the water retention block of the present invention will be described with reference to the drawings.
Incidentally, the resin in the tray top is open while being set to a predetermined height, and Da設the porous concrete having a water retention performance and water permeability, formed by integrally fixed housed in the tray water retention There is a demand to spread blocks on the rooftop and prevent the temperature rise of the building by using the heat of vaporization.
In response to such a demand, for example, by installing the above-described water retention block in a water storage pool that can supply water as appropriate, the water retention block is constantly retained, and the temperature rise deterrence of the building due to vaporization heat is improved. There is a case to let you.
At this time, in order to increase the water absorption efficiency of the water retaining block, a tray having a hole in the bottom plate may be used as the tray. In addition, a predetermined amount of porous concrete is protruded from the hole to form a leg, and the water retaining block itself is supported at a predetermined height by this leg, so that the water is evenly distributed to the center side of the bottom plate of the tray. Attempts have been made to absorb water more efficiently.
However, when a tray having a hole in the bottom plate is used as described above, when the porous concrete is excessively poured into the tray, the porous concrete may protrude beyond the hole. In order to prevent this, the worker has to carefully pour porous concrete into the tray, which is troublesome.

As shown in FIGS. 6 to 8, the water retaining block 100 according to the present embodiment is set in a predetermined height and is made of a resin tray 110 having an open top, and is placed in the tray 110. At the same time, it is fixedly housed in the tray 110 and is composed of porous concrete 111 having water retention performance and water permeability performance.
The tray 110 includes a bottom plate portion 112 and a side plate portion 113 rising from the peripheral edge portion of the bottom plate portion 112, and the bottom plate portion 112 has a predetermined interval inside the outer peripheral edge of the bottom plate portion 112. By forming a perforation 112a for cutting along the entire periphery of the bottom plate portion 112 in a linear shape, a portion 112b (hereinafter referred to as a separating portion) inside the perforating 112a can be cut off. It is configured.

Further, the bottom plate portion 112 of the present embodiment has a plurality of recessed portions 112d formed so as to be recessed in the thickness direction of the bottom plate portion 112.
The hollow portion 112d is formed in the bottom plate portion 112 and is a cylindrical portion that protrudes downward from the peripheral portion of the plurality of hole portions 112e set larger than the particle size of the aggregate of the porous concrete 111. 112f and a bottom 112g provided at the lower end of the cylindrical portion 112f and closing the lower end of the cylindrical portion 112f.
The porous concrete 111 is filled in the recess 112d.

In addition, the said baseplate part 112 is formed in square shape, and the said cylindrical part 112f is also made into the square cylinder in connection with this, The said bottom part 112g is also formed in square shape.
In addition, the plurality of depressions 112d are provided inside the separation perforation 112a, that is, in the separation portion 112b.

And the part of the porous concrete 111 filled in the plurality of depressions 112d protrudes downward after the separation part 112b is separated.
Therefore, by appropriately setting the depth of the recess 112d, the plurality of protruding portions can be used as the leg portions 111a that support the water retaining block 100 itself.

That is, in the present embodiment, as shown in FIG. 7, the length between the bottom surface of the bottom plate portion 112 and the bottom portion 112g is set to be longer than the thickness dimension of the bottom plate portion 112. In addition, even after the separation part 112b is separated, the leg part 111a made of the porous concrete 111 can protrude downward from the lower surface of the bottom plate part.
Accordingly, for example, compared with the case where the bottom plate portion 112 is mounted on the floor surface or the like, water can be distributed evenly below the bottom plate portion 112, so that water can be absorbed from the bottom plate portion 112 side. In this case, water can be absorbed more efficiently without discrimination between the peripheral side and the center side of the porous concrete 111.

In addition, the protrusion dimension of the part which the said leg part 111a of this Embodiment protrudes below the said baseplate part 32, ie, the lower surface of the said horizontal part, is set to 3 mm-12 mm.
In addition, it is necessary to consider the number of these leg portions 111a that can reliably support the water retaining block 100 and the installation location. In the present embodiment, as shown in FIG. 6, since 25 depressions 112d are provided, 25 legs 11a are also formed. However, the present invention is not limited to this, and one recess 112d may be provided at each of the four corners of the bottom plate 112, and the number of legs 111a may be four.

Further, the tray 110 after the separation portion 112b is separated from the bottom plate portion 112 is provided with a horizontal portion 112c provided horizontally along the circumferential direction of the tray 110 as shown in FIG.
The horizontal portion 112 c is a portion that remains after the separation portion 112 b is separated from the bottom plate portion 112, and is formed so as to protrude inward from the outer peripheral edge of the bottom plate portion 112.

  Thus, since the tray 111 includes at least one horizontal portion 112c provided horizontally along the circumferential direction of the tray 111, the porous concrete 111 is hardened and the perforation 112a for separating the bottom plate portion 112 is separated. By separating the portion 112b on the inner side, the bottom surface of the porous concrete 111 is greatly exposed downward, and then the porous concrete 111 can be reliably supported by the horizontal portion 112c. It is possible to reliably prevent the tray 110 from falling off.

  As shown in FIGS. 6 to 8, the inclined portion 113 has four side portions that rise from the four edge portions of the bottom plate portion 112. And this side plate part 113 is the convex part 114,114 which protrudes from the width direction center part of two side surface parts among these four side surface parts, respectively, and the width direction center part of the remaining two side surface parts. Are provided with recesses 115 and 115, respectively.

The side plate 113 includes an inclined portion 113a that rises obliquely upward from the four edges of the bottom plate portion 112, a horizontal portion 113b that extends in the horizontal direction from the upper end of the inclined portion 113a, and the horizontal portion 113b. And a rising portion 113c that rises upward from the extended end portion.
The horizontal portion 113b can prevent the porous concrete 111 from falling off, as with the horizontal portion 112c. In the present embodiment, both the horizontal portion 112c and the horizontal portion 113b are used, but either one may be used, and the side plate portion 113 is formed in a step shape to form more horizontal portions. It shall be good.

  Further, on the inner side surface of the side plate portion 113, a rib 116 that protrudes from the height near the center of the inner side surface toward the center side of the tray 110 and that faces the bottom plate portion 112 is provided. The rib 116 is horizontally disposed along the inner peripheral direction of the side plate portion 113.

On the other hand, the porous concrete 111 is driven into the tray 110 as shown in FIGS.
That is, the upper surface of the porous concrete 111 is formed to have a larger area than the lower surface. Thereby, the upper part of this porous concrete 111 will overhang rather than the lower part.

In addition, since the water retaining block 100 as described above does not have a hole in the bottom plate portion 112 of the tray 110 as described above, a special manufacturing apparatus or the like is not particularly required.
That is, when the water retaining block 100 is manufactured, first, a plurality of the trays 110 are arranged side by side on the ground or the like.

Subsequently, porous concrete 111 is poured into the plurality of trays 110, and the hollow concrete 112d is also filled with the porous concrete 111.
Then, the surface of the porous concrete 111 poured into the plurality of trays 110 is leveled and leveled.

After the porous concrete 111 poured into the tray 110 is hardened, by cutting the bottom plate portion 112 along the separation perforation 112a of the bottom plate portion 112, the horizontal portion 112c remains, and the separation portion 112b is cut off.
By separating the separation part 112b in this way, the bottom surface of the porous concrete 111 can be largely exposed downward while forming the leg part 111a.

According to the present embodiment, the porous concrete 111 is placed in the tray 110 and is integrally fixed and accommodated in the tray 110. Therefore, the strength of the porous concrete 111 cannot be maintained alone. Even if the thickness is reduced, it is possible to reliably prevent the strength of the porous concrete 111 from being lowered. Therefore, for example, a water retaining block 100 having a thin plate thickness can be reliably obtained as compared with a water retaining block made of porous concrete having a thickness capable of maintaining strength alone.
Further, since the porous concrete 111 is placed in the tray 110 and integrally fixed and stored in the tray 110, the tray 110 can be used as a formwork of the porous concrete 111. Accordingly, the porous concrete 11 does not need to be molded in advance so as to correspond to the shape of the tray 110, so that it is only necessary to place the porous concrete 11 in the tray 110, and the water retaining block 100 can be easily formed. it can.

Further, the bottom plate portion 112 is formed by forming a perforation 112a for cutting along the inner periphery of the outer peripheral edge of the bottom plate portion 112 and forming a cutting perforation 112a linearly over the entire circumference of the bottom plate portion 112. Since it is configured to be able to separate the portion 112b inside the separation perforation 112a, for example, unlike the case of forming a hole in the bottom plate portion 112 to improve the water absorption efficiency, in the tray 110, It is possible to reliably prevent the porous concrete 111 from being excessively discharged from the hole portion by pouring the porous concrete 111 excessively. Thereby, the operation of placing the porous concrete 111 into the tray 110 can be easily and reliably performed without considering that the porous concrete 111 comes out of the hole.
Moreover, after the porous concrete 111 is hardened, the bottom surface of the porous concrete 111 can be largely exposed downward by cutting off the portion 112b inside the cutting perforation 112a of the bottom plate portion 112. As a result, water can be absorbed not only from the opening at the top of the tray 110 but also from the bottom plate portion 112 side. Therefore, for example, water can be absorbed efficiently compared to a water retention block using a tray having an opening only at the top. .

(1st Embodiment of a water retention block manufacturing apparatus)
Next, an embodiment of a water retention block manufacturing apparatus of the present invention will be described with reference to the drawings.

  As shown in FIGS. 9 and 10, the water retention block manufacturing apparatus 40 of the present embodiment is for manufacturing the water retention blocks 1 and 2 described above, and the bottom surface on which a plurality of the trays 10 and 20 are arranged side by side. Are provided between the bottom portion 41 and the bottom plate portions 12 and 22 of the plurality of trays 10, 20..., And the bottom plate portions 12 and 22 and the bottom plate portions 12 of the plurality of trays 10 and 20. , 22 are provided with a plurality of spacers 42..., 43..., And the height of each of the plurality of spacers 42 is set to 3 mm to 5 mm.

The bottom surface portion 41, the may be a horizontal plane are arranged a plurality of water retaining blocks 1, for example, plate material, such as resin-made wood-metal, are also intended and may in the floor such as concrete.
In the present embodiment, a concrete floor surface in which dust, pebbles and the like on the surface are removed is adopted.

The spacers 42, 43 are long rod-shaped members as shown in FIGS. 9 and 10, and at least the bottom plate portions 12, 22 of the trays 10, 20 arranged in parallel with the bottom surface portion 41. Are arranged on the bottom surface portion 41 so as to contact the lower surfaces of the one and other side end portions.
Thereby, since a plurality of trays 10 ..., 20 ... can be placed along the length direction of the spacers 42 ..., 43 ..., if the plurality of trays 10 ..., 20 ... are arranged in a row, The spacers 42... 43 need only be at least two.

In the case of the tray 20, as shown in FIG. 10 (a), the spacers 42 are arranged on the bottom surface portion 41 so that they are at least in contact with one and other side end portions of the bottom plate portion 22. What is necessary is just to arrange.
Note that the present invention is not limited to such a configuration, and the plurality of spacers 42 may be disposed on the bottom surface portion 41 so as to avoid the hole portion 22a.

In the case of the spacer 43, as shown in FIG. 10 (b), the spacers 43 are at least outside the protruding legs 17 located on one side and the other side end side of the bottom plate portion 12. What is necessary is just to arrange | position on the said bottom face part 41 so that it may contact | abut to a lower surface.
Note that the present invention is not limited to such a configuration, and a plurality of spacers 43 are provided on the bottom surface portion 41 so as to correspond to the protruding legs 17 arranged in a row of the plurality of trays 10 arranged in a row. It may be arranged.

  Further, as shown in FIG. 9, even when a plurality of rows formed by arranging a plurality of trays 10, 20,... Are arranged on the bottom surface 41, at least two spacers 42, 42, 43, 43 are arranged. The plurality of trays 10..., 20.

  Thus, by providing the plurality of spacers 42... 43 between the bottom surface portion 41 and the trays 10, 20, the porous concrete 11, 21 placed in the trays 10, 20 is provided. Aggregates can be reliably protruded from the plurality of holes 12a.

  In order to manufacture the water retaining blocks 1 and 2 with such a manufacturing apparatus 40, the plurality of spacers 42... 43. .., 20... Are arranged in parallel along the length direction of the plurality of spacers 42.

Subsequently, the porous concrete 11 and 21 are placed in a plurality of trays 10 to 20 arranged side by side. At this time, a part of the porous concrete 11 and 21 protrudes from the plurality of hole portions 12a to 22 mm of the trays 10 to 20 mm by 3 mm to 5 mm.
Then, the water retaining blocks 1 and 2 can be manufactured simply by leveling the upper surfaces of the porous concrete 11 and 21 before solidification, and then leaving them until solidified.

According to the present embodiment, a plurality of the trays 10 and 20 are provided in parallel, and a bottom surface 41 is provided between the bottom surface 41 and the bottom plates 12 and 22 of the plurality of trays 10. And a plurality of spacers 42, 43,... That form gaps between the bottom surface parts 12, 22 and the bottom plate parts 12, 22 of the plurality of trays 10, 20. 43, the trays 10 and 20 can be supported above the bottom surface portion 41 at a predetermined height. As a result, a gap can be formed between the bottom plate portions 12 and 22 of the trays 10 and 20 and the bottom surface portion 41. Therefore, the aggregates of the porous concrete 11 and 21 placed in the trays 10 and 20 are It can be made to protrude reliably from the plurality of holes 12a. Therefore, water can be reliably absorbed from the portion protruding from the plurality of holes 12a, 22a, and water can be absorbed efficiently.
The water retaining blocks 1 and 2 manufactured by such a manufacturing apparatus 40 place the porous concrete 11 and 21 in the trays 10 and 20 and integrally fix and store them in the trays 10 and 20. Therefore, even if the porous concrete 11 and 21 is made thin enough that the strength cannot be maintained alone, it is possible to reliably prevent the strength of the porous concrete 11 and 21 from being lowered. Therefore, for example, the water retaining blocks 1 and 2 having a thin plate thickness can be reliably obtained as compared with a water retaining block made of porous concrete having a thickness capable of maintaining the strength alone.

(2nd Embodiment of a water retention block manufacturing apparatus)
Next, a second embodiment of the water retention block manufacturing apparatus of the present invention will be described with reference to the drawings.

  As shown in FIGS. 11 and 12, the water retention block manufacturing apparatus 50 of the present embodiment is for manufacturing the above-described water retention block 3. From the main body mold 51 in which a plurality of the trays 30 are arranged side by side. The main body form 51 includes a placement surface 52 on which the tray 30 is placed, and a plurality of holes of the tray 30 placed on the placement surface 52 while opening on the placement surface 52. A plurality of concave hole portions 53 are formed corresponding to the position 32a.

  Further, the opening widths of the upper opening portions 43a of the plurality of concave hole portions 53 are formed to be larger than the opening widths of the plurality of hole portions 32a of the tray 30, and the concave hole portions 53 ... The depth dimension from the upper opening 53a to the bottom surface 53b is set to 3 mm to 12 mm.

  The main body mold 51 is provided with the mounting surface 52 at a position one step lower than the upper surface 51a of the main body mold 51 so that the mounting surface 52 serves as a bottom surface, and the lower portion of the tray 30 is fitted. A tray accommodating portion 51b is provided.

The tray accommodating portion 51b has a mounting surface 52 that is substantially the same size as the bottom plate portion 32 of the tray 30, and the inner peripheral wall surface 51c of the tray accommodating portion 51b It is formed so as to be approximately the same size as the outer peripheral surface.
In other words, the inner side surface of the tray accommodating portion 51b is formed in the shape of the lower portion of the tray 30.

  According to such a tray accommodating part 51b, the said tray 30 can be mounted in the said mounting surface 52 so that it may fit in this tray accommodating part 51b, and the said several tray 30 can be put in the said main body formwork 51. There is an advantage that it is easy to set.

  According to the concave hole portion 53 of the present embodiment, the leg portion 31a of the water retaining block 3 is formed in a prismatic shape, but the bottom surface 53b of the concave hole portion 53 is the opening of the upper surface opening portion 53a. The shape of the leg portion 31a can be appropriately changed by making it narrower than the width or by changing the shape of the inner wall surface 53c between the peripheral edge portion of the upper surface opening 53a and the bottom surface 53b to a shape other than the vertical surface. It becomes possible.

  In order to manufacture the water retaining block 3 with such a manufacturing apparatus 50, the plurality of trays 30 are placed on the mounting surface 52 so as to be fitted into the tray accommodating portion 51 b of the main body mold 51.

Subsequently, the porous concrete 31 is placed in a plurality of trays 30 arranged in parallel. At this time, a part of the porous concrete 31 is protruded by 3 mm to 12 mm from the plurality of holes 32 a of the tray 30.
Then, the water retaining block 3 can be manufactured simply by leveling the upper surface of the porous concrete 31 before solidifying and then leaving it to solidify.

In addition, the water retention block manufacturing apparatus 50 of this Embodiment is not restricted to the above.
That is, the water retention block manufacturing apparatus 50A shown in FIG. 13 includes a main body mold 51A in which a plurality of the trays 30 are arranged side by side. The main body mold 51A includes a bottom plate portion 51Aa disposed horizontally and the bottom plate portion 51Aa. And a cylindrical rib 51Ab that rises vertically from the upper surface of the tube and is formed in a cylindrical shape.

The upper surface of the cylindrical rib 51Ab is a mounting surface 52A on which the tray 30 is mounted. The cylindrical rib 51Ab corresponds to the positions of the plurality of holes 32a of the tray 30 to be mounted. Are arranged on the bottom plate portion 51Aa.
Further, the opening width of the upper opening portion 53Aa of the cylindrical rib 51Ab is formed to be larger than the opening widths of the plurality of hole portions 32a ... of the tray 30, and the bottom plate portion is formed from these upper opening portions 53Aa. The depth dimension up to 51 Aa is set to 3 mm to 12 mm.
Such a water retention block manufacturing apparatus 50A may be used.
Further, the tray accommodating portion 51b as described above may be appropriately formed.

According to the present embodiment, the tray 30 includes a main body mold 51 in which a plurality of trays 30 are arranged side by side. The main body mold 51 includes a mounting surface 52 on which the tray 30 is mounted and the mounting surface 52. And a plurality of concave hole portions 53... Formed corresponding to the positions of the plurality of hole portions 32 a of the tray 30 placed on the placement surface 52. Is placed on the mounting surface 52, the tray 30 can be supported at a predetermined height from the bottom surface 53b of the concave hole 53. As a result, a gap can be formed between the bottom plate portion 32 of the tray 30 and the bottom surface 53b of the concave hole portion 53, so that the aggregate of the porous concrete 31 placed in the tray 30 can be used as the plurality of holes. It can be made to protrude reliably from the part 32a .... Accordingly, water can be reliably absorbed from the portion protruding from the plurality of holes 32a, and water can be absorbed efficiently.
In addition, since the opening widths of the upper openings 43a of the plurality of concave holes 53 are formed to be larger than the opening widths of the plurality of holes 32a of the tray 30, the plurality of holes The porous concrete 31 protruding from 32a can be shaped to match the shape of the concave holes 53. That is, the bottom plate portion 32 of the tray 30 is sandwiched between the porous concrete 31 in the tray 30 and the porous concrete 31 that protrudes below the bottom plate portion 32. As a result, the bonding strength between the tray 30 and the porous concrete 31 can be reliably increased, so that the porous concrete 31 can be reliably prevented from being detached from the tray 30.
The water retaining block 3 manufactured by such a manufacturing apparatus 50 is constructed by placing the porous concrete 31 in the tray 30 and integrally fixing and storing the porous concrete 31 in the tray 30. Even if 31 is made thin so that the strength cannot be maintained alone, it is possible to reliably prevent the strength of the porous concrete 31 from being lowered. Therefore, for example, a water retaining block 3 having a thin plate thickness can be reliably obtained as compared with a water retaining block composed of porous concrete having a thickness capable of maintaining strength alone.

(Temperature rise suppression system using a water retaining block)
Next, a temperature rise suppression system will be described as an example of an embodiment using the water retention block of the present invention with reference to the drawings.

  As shown in FIGS. 14 and 15, this temperature rise suppression system suppresses the surrounding temperature rise by being provided on the floor 5 a of the roof of the building 4 or the balcony 5, and the floor 5 a The floor 5a is provided with a water gradient that decreases from the building-side end to the outside-side end. On the floor 5a, a plurality of water storage parts 6 and 6 are provided on the floor 5a. The plurality of water storage blocks 6, 6 are arranged in parallel along the gradient direction, and a plurality of the water retaining blocks 1, 2, 3, 100 are laid down, and are positioned above the floor surface 5 a in the gradient direction. A water supply means 7 for supplying water to the water storage unit 6 is provided in the vicinity of the water storage unit 6 to be operated. The lower side of the floor surface 5a in the gradient direction is below the floor surface 5a in the gradient direction. Drainage hole 8 for discharging water overflowing from the water storage section 6 located outside It is provided.

In addition, although this temperature rise suppression system shall be provided in the floor surface 5a of the balcony 5 of the said building 4, it is not restricted to this, It shall be provided on the rooftop of a building. The roof of the building when the temperature rise suppression system is installed on the roof of the building is in the form of a flat roof. In addition, when providing the temperature rise suppression system in the said balcony 5, it is desirable that this balcony 5 is a roof balcony with high load resistance.
Further, the building 4 is provided with an entrance 4 a for passing between the inside of the building 4 and the balcony 5 so as to face the balcony 2.

On the other hand, the plurality of water storage units 6 and 6 are side wall members 6a having a predetermined length along the gradient direction of the floor surface 5a and at a predetermined interval in a direction perpendicular to the gradient direction of the floor surface 5a. A plurality of partition members 6b having a predetermined height are arranged between the plurality of side wall members 6a, 6a at a predetermined interval along the length direction of the plurality of side wall members 6a, 6a. Further, a waterproof sheet 6c is provided at a portion surrounded by the plurality of side wall members 6a, 6a and partition members 6b, 6b respectively installed between both end portions in the longitudinal direction of the plurality of side wall members 6a, 6a. Are arranged side by side on the floor surface 5a.
In addition, since the depth of the water stored in each water storage part 6 is inclined so that the floor surface 5a itself on which the water storage part 6 is provided becomes lower from the building side end part toward the external side end part, The building-side end of each water storage section 6 is shallower and the outer-side end is deeper.

In addition, the water retaining blocks 1, 2, 3, 100 are formed in the water reservoirs 6, 6 in a cavity formed between adjacent water retaining blocks 1, 1, 2, 2, 3, 3, 100, 100. The partition member 6b is laid down so as to be accommodated.
Furthermore, the above-mentioned irrigation pipe (not shown) etc. shall be connected to the said water supply means 7, and may be accommodated in the cavity in which the said partition member 6b is not accommodated.

As shown in FIGS. 14 and 15, the water supply means 7 is provided in the vicinity of the water storage section 6 located above the floor surface 5 a in the gradient direction, and is connected to a water supply source and discharges water. The discharge part 7a and the discharge part 7a are connected to the discharge part 7a, and the tip is inserted from the cavity between the adjacent water retaining block materials 1, 1, 2, 2, 3, 3, 100, 100, and the water storage part 6 And a hose 7b provided in the vehicle.
Examples of the water supply source include a bath, a storage tank for storing rainwater, and the like in addition to a normal water supply, and are appropriately selected.

  As shown in FIG. 14, the drain hole 8 is provided at the lower end of the floor surface 5a in the gradient direction. In addition, the lower end part of the gradient direction of the floor surface 5a is a drainage band 8a that is long in a direction orthogonal to the gradient direction of the floor surface 5a, and the drainage hole 8 is formed in a part of the drainage band 8a. Is provided. The drainage zone 8 a is configured to incline toward the drainage hole 8 and easily drains not only water overflowing from the water storage unit 6 but also rainwater flowing around the water storage unit 6. The drainage zone 8a may be formed in a groove shape that is one step lower than the floor surface 5a.

Further, as shown in FIG. 15, the drain hole 8 is covered with a cover 8b for concealing the drain hole 8 and preventing clogging by dust from the outside.
Further, the height to the upper surface of the cover 8b is set to be substantially equal to the upper surfaces of the water retaining blocks 1, 2, 3, 100 laid in the water storage section 6 positioned below the floor surface 5a in the gradient direction. Has been. And the gravel (not shown) etc. are spread | laid on the floor surface 5a around the said several water storage parts 6 and 6 except this cover 8b, etc., and the surrounding wall of the said several water storage parts 6 and 6 and the said balcony 5 The groove between 5b is filled. At this time, the gravel laid in the groove is made substantially equal to the water retaining block materials 1, 2, 3, 100 laid in the cover 8b of the drain hole 8 and the plurality of water storage parts 6, 6. Therefore, since the steps in the balcony 5 can be reduced, safety and appearance are excellent.

According to the temperature rise suppression system as described above, the plurality of water storage units 6 and 6 are provided in a wide area with respect to the floor surface 5a. Furthermore, since water has a property of depriving the surroundings of a predetermined amount of heat when evaporating, the water retaining blocks 1, 2, 3, are provided in a plurality of water storage units 6, 6 provided in a wide area with respect to the floor surface 5a. By laying a plurality of 100, when the water permeated into the water retaining blocks 1, 2, 3, 100 evaporates, the heat around the water retaining blocks 1, 2, 3, 100 is taken away. However, since it evaporates, it is possible to suppress an increase in the temperature of the floor surface 5a or to lower the temperature in a wide range with respect to the floor surface 5a. As a result, an increase in the temperature of the balcony 5 can be suppressed or the temperature can be decreased, and further, an increase in the temperature of the building 4 can also be suppressed, so that a comfortable living environment can be formed. It becomes.
The floor surface 5a is provided with a water gradient that decreases from the end of the floor surface 5a toward the outer end of the building, and the plurality of water storage portions 6 and 6 are inclined in the direction of the inclination of the floor surface 5a. Therefore, it is only necessary to supply water from the water supply means 7 provided in the vicinity of the water storage portion 6 located above the gradient direction of the floor surface 5a. The water can be easily distributed from the water storage section 6 located at the bottom to the water storage section 6 located below, and the water overflowing from the water storage section 6 located below in the gradient direction of the floor surface 5a 8 can be reliably discharged. Furthermore, since the depth of the water stored in the plurality of water storage portions 6 can be reduced by setting the height of the partition member 6b low, the gradient direction of the floor surface 5a from the water supply means 7 can be reduced. The water supplied to the water storage part 6 located above the water storage part 6 located below the floor surface 5a in the gradient direction can be more easily distributed, and the bad odor caused by the water staying Generation of germs and insects can be surely prevented.

DESCRIPTION OF SYMBOLS 1 Water retention block 2 Water retention block 3 Water retention block 10 Tray 11 Porous concrete 12 Bottom plate part 12a Hole part 13 Side plate part 20 Tray 21 Porous concrete 22 Bottom plate part 22a Hole part 23 Side plate part 30 Tray 31 Porous concrete 32 Bottom plate part 32a Hole part 33 Side plate 40 Water retention block manufacturing device 50 Water retention block manufacturing device 100 Water retention block 110 Tray 111 Porous concrete 112 Bottom plate portion 112a Perforation 113 for cutting Side plate portion

Claims (13)

A water retaining block having a thin flat plate shape,
And resin tray top is open while being set to a predetermined height,
It is placed in this tray and is fixedly housed integrally in the tray, and consists of porous concrete having water retention performance and water permeability performance,
The tray includes a bottom plate portion and a side plate portion that rises from a peripheral portion of the bottom plate portion,
The bottom plate portion communicates with the inside and outside of the tray, and a plurality of holes that are larger than the particle size of the porous concrete aggregate are formed ,
Water retention block and the upper end surface and the upper surface of the porous concrete of the tray and wherein the flush der Rukoto. In the water retention block according to claim 1,
The bottom plate portion is formed integrally with the bottom plate portion, and has a plurality of cylindrical projecting leg portions projecting downward from the peripheral portions of the plurality of hole portions. Water retention block. In the water retention block according to claim 2,
The porous concrete protrudes downward from the lower ends of the projecting legs by a predetermined dimension from the holes through the projecting legs.
The water retention block characterized in that the protruding dimension is set to 3 mm to 5 mm. In the water retention block according to claim 1,
The porous concrete protrudes downward from the bottom surface of the bottom plate portion by a predetermined dimension from the plurality of holes.
The portion that protrudes downward from the lower surface of the bottom plate portion is a leg portion,
A water retention block characterized in that the protruding dimension of these legs is set to 3 mm to 12 mm. In the water retention block according to claim 4,
The water retention block, wherein the leg portion is formed to be larger than an opening width of the plurality of hole portions. A water retaining block having a thin flat plate shape,
And resin tray top is open while being set to a predetermined height,
It is placed in this tray and is fixedly housed integrally in the tray, and consists of porous concrete having water retention performance and water permeability performance,
The tray includes a bottom plate portion and a side plate portion that rises from a peripheral portion of the bottom plate portion,
The bottom plate portion has a predetermined interval inside the outer peripheral edge of the bottom plate portion, and forms a perforation for separation over the entire circumference of the bottom plate portion, thereby making the perforation for the separation more It is configured to be able to separate the inner part ,
Water retention block and the upper end surface and the upper surface of the porous concrete of the tray and wherein the flush der Rukoto. In the water retention block according to claim 6,
The tray is provided with at least one horizontal portion provided horizontally along the circumferential direction of the tray. In the water retention block according to claim 6 or 7,
The water retaining block, wherein the bottom plate portion has a plurality of recessed portions formed so as to be recessed in the thickness direction of the bottom plate portion. In the water retention block as described in any one of Claims 1-8,
The tray is formed in a square shape in plan view,
The water retention block characterized in that the height dimension is set to 20 mm to 40 mm, and the length of one side is set to 200 mm to 500 mm. In the water retention block according to any one of claims 1 to 9,
A water retaining block characterized in that a rib that protrudes from the height near the center of the inner side surface toward the center side of the tray and faces the bottom plate portion is provided on the inner side surface of the side plate portion. It has a flat plate shape with a thin plate thickness,
A tray including a bottom plate portion which is set to a predetermined height and has an opening at the top, and further formed with a plurality of holes communicating the inside and the outside, and a side plate rising from the peripheral edge of the bottom plate portion; ,
It is composed of an aggregate having a particle size smaller than the opening diameter of the plurality of holes, and is placed in the tray and fixedly accommodated integrally in the tray, and has water retention performance and water permeability performance. Ri Do from a porous concrete,
The upper end surface of the tray and the upper surface of the porous concrete an apparatus for producing a flush der Ru water retention block,
A bottom surface part in which a plurality of the trays are juxtaposed,
A plurality of spacers are provided between the bottom surface portion and the bottom plate portions of the plurality of trays, and a plurality of spacers are formed between the bottom surface portion and the bottom plate portions of the plurality of trays.
The water retention block manufacturing apparatus, wherein the height of each of the plurality of spacers is set to 3 mm to 5 mm. It has a flat plate shape with a thin plate thickness,
A tray including a bottom plate portion which is set to a predetermined height and has an opening at the top, and further formed with a plurality of holes communicating the inside and the outside, and a side plate rising from the peripheral edge of the bottom plate portion; ,
It is composed of an aggregate having a particle size smaller than the opening diameter of the plurality of holes, and is placed in the tray and fixedly accommodated integrally in the tray, and has water retention performance and water permeability performance. Ri Do from a porous concrete,
The upper end surface of the tray and the upper surface of the porous concrete an apparatus for producing a flush der Ru water retention block,
It consists of a main body mold in which a plurality of trays are juxtaposed,
The main body mold is placed and formed corresponding to the positions of the mounting surface on which the tray is mounted, the openings on the mounting surface, and the plurality of holes of the tray mounted on the mounting surface. A plurality of concave holes, and
The opening widths of the upper openings of the plurality of concave holes are formed to be larger than the opening widths of the holes of the tray,
The depth of the depth from the upper opening to the bottom of these concave holes is set to 3 mm to 12 mm. In the water retention block manufacturing apparatus according to claim 12,
The main body mold is provided with a tray housing portion in which the mounting surface is a bottom surface by providing the mounting surface at a position one step lower than the upper surface of the main body mold, and the lower portion of the tray is fitted,
The tray housing portion has a mounting surface substantially the same size as the bottom plate portion of the tray, and an inner peripheral wall surface of the tray housing portion has a size substantially equal to the outer peripheral surface of the lower portion of the tray. It is formed in this way, The water retention block manufacturing apparatus characterized by the above-mentioned.

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