JP2784918B2 - Combination block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a civil engineering building block used for general civil engineering, marine civil engineering, and the like, and more particularly to a block technology capable of being connected in the front-rear, left-right, and up-down directions. 2. Description of the Related Art Conventionally, as a building block used for civil engineering work, for example, there is a building block as shown in FIG. This is for each block 1
Is provided with a fitting portion 2 recessed into a substantially triangular shape.
The wedge-shaped arms 3 formed on both sides are combined to construct a construction as shown in FIG.
No. 67513). In this block 1, a wall structure as shown in FIG. 6 is constructed by engaging a wedge-shaped arm 3 of an adjacent block with a substantially triangular fitting portion 2, and a central projecting surface 5 appears on the surface of the wall surface. . In addition, this wall structure is provided with a support block 7 for inserting a chain into the central protruding portion 6 in order to prevent collapse due to an earthquake or the like. Strengthen the structure. Other conventional building blocks include, for example,
There are those described in JP-A-47-11625 and JP-A-51-91914. The building material block of JP 47-11625 A is
As shown in FIG. 5, a plurality of protrusions (ribs) 10 and recesses (grooves) 11 are formed on six sides of a rectangular plastic building material, respectively, and these can be combined to form a wall surface. The block of No. 51-91914 is the sixth
As shown in the drawing, a concave portion 16 is provided on the upper surface and the lower surface of the block 15, and a convex portion 17 formed on both sides of the concave portion 16 is fitted into the concave portion 16 of the adjacent block to construct a wall surface 18. [Problems to be Solved by the Invention] By the way, such a conventional building block is a combination block mainly for building a wall structure, and has a problem that it is difficult to apply it to artificial reefs and other large-scale structures. For example, the structure disclosed in Japanese Utility Model Laid-Open Publication No. 54-71313 can be assembled vertically and horizontally in one row, but cannot have the structural thickness of the block in the front-rear direction. Since the support block 7 is a protruding piece for connecting the chains and does not connect other blocks thereto, in this structure, a structure such as a hill or an artificial reef which has a spread in the vertical and horizontal directions is used. You can't build it. On the other hand, the building material block disclosed in Japanese Patent Application Laid-Open No. 47-11625 is provided with a convex portion and a concave portion on each side surface of a rectangular parallelepiped. I can do it. For example, a partition wall in an exhibition hall or the like. However, this block rib 10
The surface has a gently widening inclination, and the corresponding groove 11 is also only an inclined surface that narrows slightly toward the center of the block, so that the engagement between the rib 10 and the groove 11 is extremely weak against tension. That is, even if an adhesive is used, it cannot be used as a civil engineering block that can withstand a large-scale load. In the block 15 disclosed in Japanese Utility Model Laid-Open No. 51-91914, the shapes of the concave portion 16 and the convex portion 17 provided on the lower surface of the upper surface are the same as those described in
Since it is the same as the building material block of 47-11625, and it has no unevenness on the side surface, it is not possible to make a structure having a thick structure. Therefore, an object of the present invention is to provide a concrete block that can be applied to a large-scale building such as a mountain base or an artificial reef surface layer such as a park. [Means for Solving the Problems] In order to achieve the object by achieving the above object, a concrete block according to the present invention is a block having a substantially rectangular plane, and has a top surface on one side wall surface and an opposing side wall surface. A concave portion extending from the side wall opening toward the center of the block.
Arm portions formed on both sides of each of the concave portions can be fitted into the concave portions of the adjacent blocks, and the adjacent blocks mesh with each other in the front, rear, left and right directions, and the height dimensions of the blocks are unified into two types, large and small. Then, two types of blocks having different height dimensions are arranged in a line, and the blocks can be meshed in the vertical direction. [Operation] The block according to the present invention is substantially rectangular in a plane, and has a recess from the upper surface to the lower surface on one side wall surface and the opposing side wall surface, and the recess extends from the side wall opening toward the block center. It has a substantially triangular shape expanding toward. On the other hand, arm-shaped protrusions are formed on both sides of the recess, and the protrusion arms are fitted into the recesses of the adjacent combination blocks, and the adjacent blocks are connected to each other in front, rear, left and right. The height dimensions of the blocks are unified into two types, large and small. By arranging two types of blocks having different height dimensions in a row, adjacent upper and lower blocks are mutually meshed and connected in the vertical direction. Thereby, the building block group is interconnected between the front, rear, left, right, and adjacent upper and lower blocks in the front, rear, left, right, and upper and lower directions, and the entire structure of the plurality of blocks is integrally and strongly connected. Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an example of a combination block according to the present invention. The two blocks 20 and 30 differ only in the vertical dimension, but have the same other configuration. The block 20 will be described. The block 20 has a substantially square planar shape, and is provided with a recess 25 extending from the upper surface 23 to the lower surface (24) on one side wall surface 21 and the opposite side wall surface (22). . The recess 25 is formed between the side wall opening P and the block center S.
It has a generally triangular shape that expands in the direction
Due to the presence of 25, the block shape appears to be substantially H-shaped as a result. As a result of providing the concave portions 25 on the one side wall surface 21 and the opposing side wall surface (22), projecting arm portions 26 and 27 are formed on both sides of the concave portion 25. The inner surfaces of the arms 26 and 27 expand from the base end R to the front end F, and the adjacent blocks
The recesses 35 can be fitted into the recesses 30. One short side block 30 also has the same configuration, and is provided with a recess 35 extending from the upper surface 33 to the lower surface (34) on one side wall surface 31 and the opposite side wall surface (32). Has a substantially triangular shape that expands from the side wall opening P toward the block center S, and the presence of the recess 35 makes the block shape substantially H-shaped. Similarly, the arms 36, 37 expand inward from the base end R to the front end F, so that they can be fitted into the recess 25 of the adjacent block 20. The height dimension ratio between the high block 20 and the low block 30 is set to, for example, about 5: 3 in the general structure specification. In other words, the height W of the low block 30 is about 60% of the height of the high block 20.
It is desirable to set to the height dimension. This dimension setting
Engaging strength between upper and lower blocks in adjacent rows (degree of coupling)
The upper and lower coupling force increases as the dimensional difference increases, but the rigidity (bending stress) of the low-sized block 30 decreases in inverse proportion. For this reason, the height of the low dimension block 30 is set to about 50 to 80% of the height of the high dimension block 20,
Specific numerical values are appropriately set according to the total volume and weight of the construct, the purpose of use, and the like. The blocks 20 and 30 according to the present invention are mainly formed as a concrete secondary product. Of course, the material of the block itself does not matter whether it is resin wood or metal, but the most applicable material is concrete, and as a molding method in that case, a concrete secondary product using a formwork is generally used. . Next, a construction example using the blocks 20 and 30 will be described. As shown in FIG. 2, the combination blocks 20, 30 combine high-dimension blocks 20 and low-dimension blocks 30 in every other row, and connect the front-rear, left-right, and up-down connections. First, in the initial stage of construction, two types of blocks 20, 30 molded as a secondary concrete product are fitted alternately in height. At this time, one block (for example, high-size block 20)
Block (low block 30) for the recess 25
Are used to fit the arm portions 36, 37 at both ends thereof, so that the left and right blocks 30 are joined to each other. Next, by fitting the concave portion 25 of another high-size block 20 to the other arm portion 36, 37 of the low-size block 30, each block 20, 30 restricts the movement in the front, rear, left, and right directions. These blocks 20 and 30 are also connected in the up-down direction and restrain each other. In this state, the tall blocks 20 stacked in this state have their bottom positions and top positions higher than the bottom positions of the tall blocks 20 in the adjacent row, so that movement in the left-right direction is restricted. The lower block 30 located below the high block 20 is restricted from moving upward by the lamination of the high blocks 20. As described above, the blocks 20, 30 can form a single structure having a predetermined design volume weight by repeating the fitting connection in the front-rear, left-right, and up-down directions. In the construction, each block except the top block is fitted and connected to each other in the front-rear, left-right, and up-down directions to restrict the movement of each other. Although only the uppermost block is not restricted upwardly, the lower block row acts on the front, rear, left and right and downward. [Effects of the Invention] As described above, the combination block according to the present invention is formed with concave and protruding arms in two types of blocks having different heights. The building can be freely constructed by combining the blocks.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a combination block according to the present invention, FIG. 2 is a perspective view showing a state where the combination block shown in FIG. 1 is fitted, and FIG. FIG. 4 is a view showing an example of a conventional combination block, FIG. 4 is a perspective view showing a state where the combination block shown in FIG. 3 is fitted, FIG. 5 is a cross-sectional view showing a second example of the conventional combination block, 6
The figure shows a third example of a conventional combination block. [Explanation of References] 20, 30 Block 21, 31 One side wall surface 22, 32 Opposite side wall surface 23, 33 Upper surface 24, 34 Lower surface 25, 35 Depressed portions 26, 27, 36, 37 ... Projecting arm P ... Side wall opening S ... Block center F ... Arm tip

Claims (1)

(57) [Claims] A block having a substantially rectangular shape in a plane, and a concave portion extending from an upper surface to a lower surface is provided on each of a side wall surface and an opposite side wall surface, and the concave portion expands from the side wall opening toward the block center. The arm portions formed on both sides of the concave portion can be fitted into the concave portion of an adjacent block, and the adjacent blocks mesh with each other in the front-rear and left-right directions. A combination block wherein two types of blocks having different height dimensions are arranged in a line so that the blocks can be meshed in a vertical direction.