Building blocks and construction method for structures using building blocks

Abstract

The present invention provides a construction block and a construction method for a structure using the construction block, which can be firmly connected in the horizontal direction and the stacking direction and can construct walls and corners in a short time using construction blocks that have approximately the same shape in a plan view. [Solution] As shown in Figure 1, block A has a shape in which a three-dimensional object with a length L of approximately 20 cm, a width W of approximately 10 cm, and a height H of approximately 8 cm has been cut out in an uneven shape, and is composed of a first fitting portion 1, a second fitting portion 2, an engaging protrusion 3, an engaging recess 4, and a substantially flat plate-like flat portion 5. Block A has three protrusions (first protrusion, second protrusion, engaging protrusion) and three recesses (first recess, second recess, engaging recess), which allows for a variety of arrangement structures.

Description

[Technical Field]

[0001] The present invention relates to building blocks that can be connected to each other by fitting them together, and a method for constructing a structure using the building blocks. More specifically, the present invention relates to building blocks that can be firmly connected in the horizontal and stacking directions and that have approximately the same shape in plan view, and that allow wall sections and corner sections to be constructed in a short time, and a method for constructing a structure using the building blocks. [Background technology]

[0002] A typical block wall is made by stacking building blocks (hereafter simply referred to as "blocks") to a certain height on top of a concrete foundation. The blocks (so-called concrete blocks) used here have cavities that can be filled with reinforcing steel bars or mortar to firmly connect the blocks, increasing the strength of the entire block wall.

[0003] However, the individual adjacent blocks used in a block wall are not directly connected to each other by fitting together, so the blocks are not fully connected to each other. Also, because the blocks are connected to each other via mortar, the next step must be carried out after the applied mortar has hardened, which takes time.

[0004] To solve this problem, Patent Document 1 discloses a "building block" that has a recessed portion on the side of the block, and multiple protrusions on the bottom surface of the block with horizontal grooves that can fit into these protrusions. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-27240 Summary of the Invention [Problem to be solved by the invention]

[0006] These building blocks are connected and fixed between blocks arranged in upper and lower tiers by fitting the protrusions on the bottom surface of the block on the upper tier into the horizontal grooves of the block on the lower tier, and adjacent blocks are connected by filling the recesses on the side of the blocks with mortar which hardens when it fills them.

[0007] This means that rather than simply connecting the blocks by filling them with mortar, each block fits into the blocks above, below, and to the left and right using their uneven shapes, creating a stronger connection, thereby increasing the strength of the entire block wall.

[0008] However, the recesses are very shallow compared to the overall size of the blocks, and because the blocks are constructed by stacking them one on top of the other, they do not firmly connect the blocks together, making the structure prone to collapse due to shaking, etc., and it is difficult to say that the blocks are sufficiently connected.

[0009] Furthermore, since the next layer cannot be stacked until the mortar between the blocks has hardened, construction in a short period of time is difficult, just like in the prior art.

[0010] In addition, when forming the corners of a building, blocks that have a different shape in plan view from the blocks used to form the walls are used, so construction must be done using blocks of multiple shapes, which requires a certain level of skill.

[0011] The present invention was devised in consideration of the above points, and aims to provide building blocks and a construction method for structures using building blocks that can be firmly connected in the horizontal and stacking directions and that can construct walls and corners in a short period of time using building blocks that have approximately the same shape when viewed from above. [Means for solving the problem]

[0012] In order to solve the above problem, the building block of the present invention comprises a first fitting portion provided approximately in the center and having a first recess and a first convex portion that shares one of the sides that constitute the first recess in a planar view; a second fitting portion provided at one end and having a second recess and a second convex portion that shares one of the sides that constitute the second recess in a planar view; an engaging convex portion provided at the other end opposite the side on which the second fitting portion is provided and that shares one of the sides that constitute the first recess in a planar view; and an engaging concave portion provided between the first convex portion and the second convex portion and that shares one of the sides that constitute the first convex portion and the second convex portion in a planar view, wherein the first recess and the second convex portion are formed in complementary shapes, the second recess and the first convex portion are formed in complementary shapes, and the engaging concave portion and the engaging convex portion are formed in complementary shapes.

[0013] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a planar view, so that the first recess and the first convex portion are arranged adjacent to each other.

[0014] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are arranged adjacent to each other.

[0015] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0016] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0017] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and the building block can be firmly connected horizontally to other building blocks of approximately the same shape when viewed in plan.

[0018] Furthermore, when one building block and another building block of approximately the same shape in plan view are stacked facing each other with offset heights, the one building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing them to be firmly connected in the stacking direction.

[0019] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0020] Furthermore, since the first recess and second protrusion, the second recess and first protrusion, and the engaging recess and engaging protrusion are formed in complementary shapes, the respective concave and convex portions can be fitted together to construct a wall using building blocks that have approximately the same shape when viewed from above.

[0021] Specifically, the first recess of one building block and the second convex portion of another building block, the first convex portion of one building block and the second recess of another building block, and the engaging convex portion of one building block and the engaging recess of another building block are formed in complementary shapes and can be fitted together, so that the uneven shapes can be used to firmly connect each uneven portion, allowing the wall portion to be constructed using blocks that have approximately the same shape when viewed in plan.

[0022] In order to solve the above problem, the building block of the present invention comprises a first fitting portion provided approximately in the center and having a first recess and a first convex portion that shares one of the sides that constitute the first recess in a planar view; a second fitting portion provided at one end and having a second recess and a second convex portion that shares one of the sides that constitute the second recess in a planar view; an engaging convex portion provided at the other end opposite the side on which the second fitting portion is provided and that shares one of the sides that constitute the first recess in a planar view; and an engaging concave portion provided between the first convex portion and the second convex portion and that shares one of the sides that constitute the first convex portion and the second convex portion in a planar view, wherein the first recess and the first convex portion are formed in complementary shapes, the second recess and the second convex portion are formed in complementary shapes, and the engaging concave portion and the engaging convex portion are formed in complementary shapes.

[0023] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a plan view, so that the first recess and the first convex portion are provided adjacent to each other.

[0024] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are provided adjacent to each other.

[0025] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0026] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0027] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and the building block can be firmly connected horizontally to other building blocks of approximately the same shape when viewed in plan.

[0028] Furthermore, when one building block and another building block of approximately the same shape in plan view are stacked facing each other with offset heights, the one building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing them to be firmly connected in the stacking direction.

[0029] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0030] Furthermore, since the first recess and first protrusion, the second recess and second protrusion, and the engaging recess and engaging protrusion are formed in complementary shapes, the respective concave and convex portions can be fitted together to construct a wall using building blocks that have approximately the same shape when viewed in plan.

[0031] Specifically, the first recess of the first building block and the first convex portion of the second building block, the second recess of the first building block and the second convex portion of the third building block, and the engaging recess of the first building block and the engaging convex portion of the second building block are formed in complementary shapes that allow them to fit together, so that the concave and convex shapes can be used to firmly connect each concave and convex portion, and therefore the wall portion can be constructed using blocks that have approximately the same shape when viewed in plan.

[0032] In order to solve the above problem, the building block of the present invention comprises a first fitting portion provided approximately in the center and having a first recess and a first convex portion that shares one of the sides that constitute the first recess in a planar view; a second fitting portion provided at one end and having a second recess and a second convex portion that shares one of the sides that constitute the second recess in a planar view; an engaging convex portion provided at the other end opposite the side on which the second fitting portion is provided and that shares one of the sides that constitute the first recess in a planar view; and an engaging concave portion provided between the first convex portion and the second convex portion and that shares one of the sides that constitute the first convex portion and the second convex portion in a planar view, wherein the first recess and the second convex portion are formed in complementary shapes, the second recess and the engaging convex portion are formed in complementary shapes, and the engaging concave portion and the first convex portion are formed in complementary shapes.

[0033] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a plan view, so that the first recess and the first convex portion are provided adjacent to each other.

[0034] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are provided adjacent to each other.

[0035] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0036] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0037] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and the building block can be firmly connected horizontally to other building blocks of approximately the same shape when viewed in plan.

[0038] Furthermore, when one building block and another building block of approximately the same shape in plan view are stacked facing each other with offset heights, the one building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing them to be firmly connected in the stacking direction.

[0039] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0040] Furthermore, since the first recess and second protrusion, the second recess and engaging protrusion, and the engaging recess and first protrusion are formed in complementary shapes, each recess and protrusion can be fitted together to form a corner using building blocks that have approximately the same shape when viewed in plan.

[0041] Specifically, the engaging recess of one building block and the first convex portion of another building block, the second convex portion of one building block and the first concave portion of another building block, and the second concave portion of one building block and the engaging convex portion of another building block are formed in complementary shapes and can be fitted together, so that the concave and convex shapes can be used to firmly connect each concave and convex portion, and corner portions can be constructed using blocks that are approximately the same shape when viewed in plan.

[0042] Furthermore, if a through hole through which a reinforcing bar can be inserted is provided between the first fitting portion and the second fitting portion, the connection between the blocks can be made stronger by passing the reinforcing bar through the through hole and filling the area around it with mortar.

[0043] In order to solve the above problem, the building block of the present invention comprises a first fitting portion provided approximately in the center and having a first recess and a first convex portion sharing one of the sides that constitute the first recess in a planar view; a second fitting portion provided at one end and having a second recess and a second convex portion sharing one of the sides that constitute the second recess in a planar view; an engaging convex portion provided at the other end opposite to the side on which the second fitting portion is provided and sharing one of the sides that constitute the first recess in a planar view; and an engaging concave portion provided between the first convex portion and the second convex portion and sharing one of the sides that constitute the first convex portion and the second convex portion in a planar view, wherein the first recess and the first convex portion or the second convex portion have shapes that can be fitted together; the second recess and the first convex portion, the second convex portion or the engaging convex portion have shapes that can be fitted together; and the engaging concave portion and the first convex portion or the engaging convex portion have shapes that can be fitted together.

[0044] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a plan view, so that the first recess and the first convex portion are provided adjacent to each other.

[0045] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are provided adjacent to each other.

[0046] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0047] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0048] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and the building block can be firmly connected horizontally to other building blocks of approximately the same shape when viewed in plan.

[0049] Furthermore, when one building block and another building block of approximately the same shape in plan view are stacked facing each other with offset heights, the one building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing them to be firmly connected in the stacking direction.

[0050] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0051] Furthermore, the first recess and the first convex portion or the second convex portion have shapes that allow them to fit together, the second recess and the first convex portion, the second convex portion or the engaging convex portion have shapes that allow them to fit together, and the engaging recess and the first convex portion or the engaging convex portion have shapes that allow them to fit together, so that wall portions and corner portions can be constructed using building blocks that have approximately the same shape when viewed from above by fitting together each of the recessed and convex portions.

[0052] Specifically, the first recess of one building block and the second convex portion of another building block, the first convex portion of one building block and the second recess of another building block, and the engaging convex portion of one building block and the engaging recess of another building block are formed in complementary shapes and can be fitted together, so that the uneven shapes can be used to firmly connect each uneven portion, allowing the wall portion to be constructed using blocks that have approximately the same shape when viewed in plan.

[0053] Furthermore, the first recess of the first building block and the first convex portion of the second building block, the second recess of the first building block and the second convex portion of the third building block, and the engaging recess of the first building block and the engaging convex portion of the second building block are formed in complementary shapes that allow them to fit together, so that the concave and convex shapes can be used to firmly connect each concave and convex portion, and therefore the wall portion can be constructed using blocks that have approximately the same shape when viewed in plan.

[0054] Furthermore, the engaging recess of one building block and the first convex portion of another building block, the second convex portion of one building block and the first concave portion of another building block, and the second concave portion of one building block and the engaging convex portion of another building block are formed in complementary shapes and can be fitted together, so that the concave and convex shapes can be used to firmly connect each concave and convex portion, and therefore corner portions can be constructed using blocks that have approximately the same shape when viewed in plan.

[0055] In order to solve the above problems, the method for constructing a structure using building blocks of the present invention comprises: a first fitting portion provided in approximately the center and having a first recess and a first protrusion that shares one of the sides that constitute the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitute the second recess in a plan view; an engaging protrusion that is provided at the other end opposite to the side where the second fitting portion is provided and shares one of the sides that constitute the first recess in a plan view; and an engaging protrusion that is provided between the first protrusion and the second protrusion and shares one of the sides that constitute the first protrusion and the second protrusion in a plan view. The first recess and the second protrusion are formed in complementary shapes, the second recess and the first protrusion are formed in complementary shapes, and the engaging recess and the engaging protrusion are formed in complementary shapes. The first fitting portion of one building block is fitted into a second fitting portion of another building block that has approximately the same shape as the one building block in a plan view, and a connecting structure is used to connect the one building block and the other building blocks, thereby connecting the same building block and the same other building blocks at positions shifted in the stacking direction to construct a wall portion.

[0056] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a plan view, so that the first recess and the first convex portion are provided adjacent to each other.

[0057] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are provided adjacent to each other.

[0058] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0059] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0060] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and the building block can be firmly connected horizontally to other building blocks of approximately the same shape when viewed in plan.

[0061] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0062] Furthermore, since the first recess and second protrusion, the second recess and first protrusion, and the engaging recess and engaging protrusion are formed in complementary shapes, the respective concave and convex portions can be fitted together to construct a wall using building blocks that have approximately the same shape when viewed from above.

[0063] Specifically, the first recess of one building block and the second convex portion of another building block, the first convex portion of one building block and the second recess of another building block, and the engaging convex portion of one building block and the engaging recess of another building block are formed in complementary shapes and can be fitted together, so that the uneven shapes can be used to firmly connect each uneven portion, allowing the wall portion to be constructed using blocks that have approximately the same shape when viewed in plan.

[0064] In addition, by using a connecting structure in which a first fitting portion of one building block is fitted into a second fitting portion of another building block that has approximately the same shape as the first building block in a plan view, the first building block can be firmly connected to the other building block by utilizing the uneven shape.

[0065] In addition, by constructing a wall by connecting one building block to another building block facing each other at positions offset in the stacking direction, the one building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing for a strong connection in the stacking direction.

[0066] In order to solve the above problems, the method for constructing a structure using building blocks of the present invention comprises a first fitting portion provided approximately in the center and having a first recess and a first protrusion that shares one of the sides that constitute the first recess in a plan view, a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitute the second recess in a plan view, an engaging protrusion that is provided at the other end opposite to the side where the second fitting portion is provided and shares one of the sides that constitute the first recess in a plan view, and an engaging recess that is provided between the first protrusion and the second protrusion and shares one of the sides that constitute the first protrusion and the second protrusion in a plan view, One recess and the first convex portion are formed in complementary shapes, the second recess and the second convex portion are formed in complementary shapes, and the engaging recess and the engaging convex portion are formed in complementary shapes. A first fitting portion of one building block is fitted into a first fitting portion of another building block that has approximately the same shape as the one building block in a plan view, and the second fitting portion of the same building block is fitted into a second fitting portion of the other building block, thereby connecting the same building block and the same other building blocks at positions shifted in the stacking direction to construct a wall portion.

[0067] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a plan view, so that the first recess and the first convex portion are provided adjacent to each other.

[0068] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are provided adjacent to each other.

[0069] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0070] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0071] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and the building block can be firmly connected horizontally to other building blocks of approximately the same shape when viewed in plan.

[0072] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0073] Furthermore, since the first recess and first protrusion, the second recess and second protrusion, and the engaging recess and engaging protrusion are formed in complementary shapes, the respective concave and convex portions can be fitted together to construct a wall using building blocks that have approximately the same shape when viewed in plan.

[0074] Furthermore, the first recess of the first building block and the first convex portion of the second building block, the second recess of the first building block and the second convex portion of the third building block, and the engaging recess of the first building block and the engaging convex portion of the second building block are formed in complementary shapes that allow them to fit together, so that the concave and convex shapes can be used to firmly connect each concave and convex portion, and therefore the wall portion can be constructed using blocks that have approximately the same shape when viewed in plan.

[0075] Furthermore, by fitting a first fitting portion of one building block with a first fitting portion of a second building block that has approximately the same shape as the first building block in a plan view, and by fitting a second fitting portion of the first building block with a second fitting portion of the third building block, the first building block, the second building block, and the third building block are connected together by a connecting structure that makes it possible to firmly connect the first building block with the second building block and the third building block by utilizing the uneven shape.

[0076] Furthermore, by constructing a wall by connecting one building block and another building block that has approximately the same shape as the first building block in a plan view, facing each other and shifting the positions in the stacking direction, the first building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing for a strong connection in the stacking direction.

[0077] In order to solve the above problems, the method for constructing a structure using building blocks of the present invention comprises: a first fitting portion provided in approximately the center and having a first recess and a first protrusion that shares one of the sides that constitute the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitute the second recess in a plan view; an engaging protrusion that is provided at the other end opposite to the side where the second fitting portion is provided and shares one of the sides that constitute the first recess in a plan view; and an engaging protrusion that is provided between the first protrusion and the second protrusion and shares one of the sides that constitute the first protrusion and the second protrusion in a plan view. and an engaging recess formed by engaging the first engaging portion and engaging protrusion of one building block with the second engaging portion and engaging recess of another building block having substantially the same shape as the one building block in a plan view, wherein the first recess and the second protrusion are formed in complementary shapes, the second recess and the engaging protrusion are formed in complementary shapes, and the engaging recess and the first protrusion are formed in complementary shapes.The connecting structure connects the one building block with the other building blocks by engaging the first engaging portion and engaging protrusion of one building block with the second engaging portion and engaging recess of another building block having substantially the same shape as the one building block in a plan view, thereby connecting the same building block with the other building blocks at positions shifted in the stacking direction, thereby constructing a corner portion.

[0078] Here, the first fitting portion has a first recess and a first convex portion that shares one of the sides that form the first recess in a plan view, so that the first recess and the first convex portion are provided adjacent to each other.

[0079] Furthermore, the second fitting portion has a second recess and a second protrusion that shares one of the sides that form the second recess in a plan view, so that the second recess and the second protrusion are provided adjacent to each other.

[0080] Furthermore, the engaging protrusion shares one of the sides that form the first recess in plan view, so that the engaging protrusion and the first recess are provided adjacent to each other.

[0081] Furthermore, the engaging recess shares one of the sides that form the first convex portion and the second convex portion in plan view, so that the engaging recess is provided adjacent to the first convex portion and the second convex portion.

[0082] Furthermore, by providing a first fitting portion approximately in the center, a second fitting portion at one end, an engaging convex portion at the other end opposite the side where the second fitting portion is provided, and an engaging concave portion between the first convex portion and the second convex portion, it is possible to arrange an uneven shape around the building block, and it is possible to firmly connect it to other building blocks in the horizontal direction.

[0083] Furthermore, since the blocks can be firmly connected without using mortar, the time required for the mortar to harden can be eliminated, allowing construction to be completed in a short time.

[0084] Furthermore, the engaging recess of one building block and the first convex portion of another building block, the second convex portion of one building block and the first concave portion of another building block, and the second concave portion of one building block and the engaging convex portion of another building block are formed in complementary shapes and can be fitted together, so that the concave and convex shapes can be used to firmly connect each concave and convex portion, and therefore corner portions can be constructed using blocks that have approximately the same shape when viewed in plan.

[0085] In addition, by using a connecting structure that connects one building block to another building block by fitting a first fitting portion and engaging protrusion of one building block with a second fitting portion and engaging recess of another building block that has approximately the same shape as the first building block in a plan view, the one building block can be firmly connected to the other building block by utilizing the uneven shape.

[0086] Furthermore, by connecting one building block and another building block that has approximately the same shape as the first building block in a plan view, facing each other and shifting the positions in the stacking direction, and constructing the corner portion, the first building block stacked in two layers, one above the other, can be sandwiched between the other building blocks, allowing for a strong connection in the stacking direction. [Effects of the Invention]

[0087] The building blocks and the method for constructing structures using building blocks according to the present invention are capable of being firmly connected in the horizontal and stacking directions, and are capable of constructing wall sections and corner sections in a short time using building blocks that are approximately the same shape when viewed from above. [Brief explanation of the drawings]

[0088] [Figure 1] FIG. 1 is a perspective view of a block according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a schematic explanatory diagram showing a linear arrangement of blocks according to the first embodiment of the present invention. [Figure 3] FIG. 2 is a schematic explanatory diagram showing a right-angled arrangement of blocks according to the first embodiment of the present invention. [Figure 4] FIG. 2 is a schematic explanatory diagram showing a three-dimensional view of a corner portion formed using a block according to the first embodiment of the present invention. [Figure 5] 1 is a schematic explanatory diagram showing a three-dimensional structure formed using blocks according to a first embodiment of the present invention. FIG. [Figure 6] FIG. 2 is a schematic explanatory view of a block according to the first embodiment of the present invention, with a corner portion thereof cut away. [Figure 7] FIG. 10 is a perspective view of a block according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a schematic explanatory diagram of a block according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0089] Block A of the present invention will be described below with reference to FIGS. 1 to 8 to facilitate understanding of the present invention.

[0090] [First embodiment] <About Block A> First, as shown in Figure 1, block A has a shape in which a three-dimensional object with a length L of approximately 20 cm, a width W of approximately 10 cm, and a height H of approximately 8 cm has been cut out in an uneven shape, and is composed of a first fitting portion 1, a second fitting portion 2, an engaging protrusion portion 3, an engaging recess portion 4, and a flat plate portion 5 which is in the shape of a substantially flat plate.

[0091] Block A can also be enlarged or reduced depending on the structure being constructed. In this case, it is desirable to maintain the ratio of length L to width W (10:5). Height H can be set as appropriate to adjust the height of walls and corners.

[0092] Furthermore, when constructing a block wall, the blocks may be made of concrete or mortar, but when used for interior decoration or as toys, for example, they may be made of plastic, wood, polystyrene foam, cardboard, etc.

[0093] The first fitting portion 1 has a first recess 10 that is located approximately in the center of the block A in the length L direction and is cut out in the height H direction in an approximately square shape when viewed from above, and a first protrusion 11 that is continuous with the first recess 10 and shares a shared side 10a that constitutes the first recess 10, and is formed to protrude in an approximately square shape when viewed from above.

[0094] In addition, the second fitting portion 2 is provided near one end of the block A (i.e., one end 51 of the flat portion 5), and has a second recess 20 cut out in the height H direction in an approximately square shape when viewed from above, and formed in approximately the same shape as the first recess 10, and a second convex portion 21 which is provided continuous with the second recess 20, shares the shared side 20a that constitutes the second recess 20, protrudes in an approximately square shape when viewed from above, and is formed in approximately the same shape as the first convex portion 11.

[0095] The engaging protrusion 3 is continuous with the first recess 10 and is provided protruding from the flat plate portion 5 at a position near the other end of the block A (that is, the other end 52 of the flat plate portion 5).

[0096] The engagement recess 4 is provided between the first protrusion 11 and the second protrusion 21, and is formed in a recessed shape cut out in the height H direction.

[0097] The flat plate portion 5 is a plate-like body provided over the entire length of the block A in the direction of length L. One surface 50 of the flat plate portion 5 is formed in a substantially flat shape, and is the surface that appears as the exterior when a structure is constructed using the block A. On the opposite side of surface 50, an engaging protrusion 3, a first fitting portion 1, an engaging recess 4, and a second fitting portion 2 are arranged in this order from the other end 52 to one end 51 of the flat plate portion 5.

[0098] Here, in this embodiment, the first recess 10 of the first fitting portion 1 of block A has the same shape as block A, and is formed in a complementary shape to the first convex portion 11 and the second convex portion 21 of another block arranged opposite block A, so that they can be fitted together.

[0099] Furthermore, the second recess 20 of the block A is formed in a shape complementary to the first protrusion 11, the second protrusion 21 and the engaging protrusion 3 of the other block, and can be fitted together.

[0100] Furthermore, the engaging recess 4 of block A is formed in a shape complementary to the first protrusion 11 and the engaging protrusion 3 of the other block, and can be fitted together. Note that the complementary shape refers to a shape that allows the recess and protrusion to be fitted together, and is not necessarily limited to a shape that allows them to be fitted together without any gaps, but also includes cases where there is some clearance.

[0101] As described above, block A has three convex portions (first convex portion, second convex portion, engaging convex portion) and three concave portions (first concave portion, second concave portion, engaging concave portion), which allows for various arrangement structures, as will be described later.

[0102] Furthermore, when block A and another block are fitted together, they are fitted together while contacting each other's shared edges 10a, 20a. Since shared edges 10a, 20a extend parallel to surface 50 of flat plate portion 5, block A and another block are arranged in a substantially straight line.

[0103] <Regarding the linear arrangement structure (order arrangement) of Block A> The arrangement structure when arranging blocks A in a linear fashion will be described using Figure 2(a). Figure 2(a) is a schematic explanatory diagram showing a state in which block A and opposing block AX, which are arranged opposite block A by inverting them about the longitudinal axis of block A, are combined and arranged in a substantially linear fashion. Note that the opposing blocks AX are represented as opposing block AX1 and opposing block AX2 from the left in Figure 2(a). Furthermore, because the opposing blocks AX have substantially the same shape as block A in a plan view, the same parts are denoted by the same reference numerals.

[0104] First, the first mating portion 1 of block A is mated with the second mating portion 2 of the opposing block AX1, thereby connecting block A and opposing block AX1, and then the second mating portion 2 of block A is mated with the first mating portion 1 of the opposing block AX2, thereby connecting block A and opposing block AX2.

[0105] Hereinafter, the structure in which the first fitting portion 1 of one block is connected to the second fitting portion 2 of another block will be referred to as the "first connecting structure." Also, the arrangement of the blocks connected by the first connecting structure will be referred to as the "forward arrangement."

[0106] Specifically, the first connecting structure is a structure in which the second convex portion 21 of the opposing block AX1 is fitted into the first recess 10 of block A, the first convex portion 11 of block A is fitted into the second recess 20 of the opposing block AX1, the first convex portion 11 of the opposing block AX2 is fitted into the second recess 20 of block A, and the second convex portion 21 of block A is fitted into the first recess 10 of the opposing block AX2 to form a connection.

[0107] That is, by using the first connecting structure, not only can block A and opposing block AX1, and block A and opposing block AX2 be reliably connected in a sequential arrangement, but also, because block A firmly holds opposing block AX1 and opposing block AX2 in place, opposing block AX1 and opposing block AX2 can be reliably connected horizontally by being adjacent to each other.

[0108] Furthermore, the first convex portion 11 of block A is not only fitted into the second concave portion 20 of the opposing block AX1, but is also clamped between the second convex portion 21 of the opposing block AX1 and the engaging convex portion 3 of the opposing block AX2, so that block A and opposing block AX1 are firmly connected.

[0109] Furthermore, the second protrusion 21 of block A is not only fitted into the first recess 10 of the opposing block AX2, but is also sandwiched between the first protrusion 11 of the opposing block AX2 and the engaging protrusion 3 of the opposing block AX2, so that block A and the opposing block AX2 are firmly connected in the horizontal direction.

[0110] In this way, block A, opposing block AX1, and opposing block AX2 are firmly connected, eliminating the need to use reinforcing bars or mortar. In addition, the time required for mortar to harden during construction of the block wall can be eliminated, allowing construction to be completed in a shorter time.

[0111] Furthermore, when the first mating portion 1 and the second mating portion 2 of block A and the opposing block AX1 and opposing block AX2 are mated, the recessed and protruding portions, which are approximately rectangular in plan view, are mated while contacting the shared edges 10a and 20a parallel to the surface 50 of the flat portion 5, and therefore the blocks are naturally arranged in an approximately straight line.

[0112] Therefore, when arranging the blocks, it is possible to arrange the block A, the opposing block AX1, and the opposing block AX2 in a generally linear order without having to check the position of the blocks with a string or the like each time.

[0113] Furthermore, since block A and opposing blocks AX1 and AX2 have approximately the same shape when viewed from above, even workers who are not familiar with block construction can easily carry out the work, as it is simply a matter of fitting together the recessed and protruding parts of blocks that have approximately the same shape when viewed from above.

[0114] <Regarding the linear arrangement structure (reverse arrangement) of Block A> The arrangement structure when the blocks A are arranged linearly will be described using Figure 2(b). Figure 2(b) is a schematic explanatory diagram showing a state in which a block A and an opposing block AY, which is formed by inverting the block A about the longitudinal axis and then inverting the block A about the width axis, are combined and arranged in a substantially linear manner. Note that the opposing blocks AX are represented as opposing blocks AY1 and AY2 from the left in Figure 2(b). Furthermore, because the opposing blocks AY have substantially the same shape as the block A in a plan view, the same parts are denoted by the same reference numerals.

[0115] First, the first mating portion 1 of block A is mated with the first mating portion 1 of the opposing block AY1, thereby connecting block A and the opposing block AY1, and the second mating portion 2 of block A is mated with the second mating portion 2 of the opposing block AY2, thereby connecting block A and the opposing block AY2.

[0116] This structure in which the first fitting portion 1 of one block is connected to the first fitting portion 1 of another block, and the second fitting portion 2 of one block is connected to the second fitting portion 2 of another block, is hereinafter referred to as the "second connecting structure." Also, the arrangement of blocks connected by the second connecting structure is referred to as the "reverse arrangement."

[0117] Specifically, the second connecting structure is a structure in which the first convex portion 11 of the opposing block AY1 is fitted into the first concave portion 10 of block A, and the first convex portion 11 of block A is fitted into the first concave portion 10 of the opposing block AY1 to connect them, and the second convex portion 21 of the opposing block AY2 is fitted into the second concave portion 20 of block A, and the second convex portion 21 of block A is fitted into the second concave portion 20 of the opposing block AY2 to connect them.

[0118] In other words, by using the second connecting structure, not only can block A and opposing block AY1, and block A and opposing block AY2 be connected in an inverted arrangement, but opposing block AY1 and opposing block AY2 can also be securely fixed horizontally adjacent to each other via block A.

[0119] Furthermore, the first convex portion 11 of block A is not only fitted into the first concave portion 10 of the opposing block AY1, but is also clamped between the first convex portion 11 of the opposing block AY1 and the engaging convex portion 3 of the opposing block AY1, so that block A and the opposing block AY1 are firmly connected.

[0120] Furthermore, the second convex portion 21 of block A is not only fitted into the second recess 20 of the opposing block AY2, but is also clamped between the second convex portion 21 of the opposing block AY2 and the engaging convex portion 3 of the opposing block AY1, so that block A and the opposing block AY2 are firmly connected.

[0121] In this way, by firmly connecting block A, opposing block AY1, and opposing block AY2, there is no need to use rebar or mortar, and the time required for mortar to harden when constructing a block wall can be saved, allowing construction to be completed in a shorter time.

[0122] Furthermore, when the first mating portions 1 of block A and the opposing block AY1 and the second mating portions 2 of opposing block AY2 are mated together, the recessed and protruding portions, which are approximately rectangular in plan view, are mated together while contacting the shared edges 10a and 20a parallel to the surface 50 of the flat portion 5, and so the blocks are naturally arranged in an approximately straight line with each other.

[0123] Therefore, when arranging the blocks, it is possible to arrange the block A, the opposing block AY1, and the opposing block AY2 in a substantially linear reverse arrangement without having to check the position of the blocks with a string or the like each time.

[0124] Furthermore, since block A and opposing blocks AY1 and AY2 have approximately the same shape when viewed from above, even workers who are not familiar with block construction can easily carry out the work, as it is simply a matter of fitting together the recessed and protruding parts of blocks that have approximately the same shape when viewed from above.

[0125] <Regarding the corner arrangement structure (normal-normal arrangement) of Block A> The arrangement structure in which the blocks A are arranged in a corner shape will be described with reference to FIG. 3(a). Corner portion VI is composed of walls v1 and v2. Fig. 3(a) is a schematic explanatory diagram showing that wall portion v1 is formed by connecting block A and opposing block AX2 in a regular arrangement, and wall portion v2 is formed by fitting block A located at one end of wall portion v1 that forms corner portion VI, orthogonal block AZ1 formed by rotating block A approximately 90 degrees counterclockwise in a plan view, and orthogonal block AZ2 arranged opposite orthogonal block AZ1. Furthermore, orthogonal block AZ has approximately the same shape as block A in a plan view, so the same parts are assigned the same reference numerals.

[0126] Specifically, the corner portion VI is formed by fitting the first fitting portion 1 and the engaging protrusion 3 of the block A with the second fitting portion 2 and the engaging recess 4 of the block AZ1, thereby connecting the block A and the orthogonal block AZ1. This type of connection structure is hereinafter referred to as the "third connection structure." Furthermore, the arrangement of the blocks connected by the third connection structure to form the corner portion VI is referred to as the "sequential-sequential arrangement."

[0127] Specifically, the third connecting structure is a structure in which the second convex portion 21 of the orthogonal block AZ1 is fitted into the first recess 10 of block A, the first convex portion 11 of block A is fitted into the engaging recess 4 of the orthogonal block AZ1, and the engaging convex portion 3 of block A is fitted into the second recess 20 of the orthogonal block AZ1 to connect them.

[0128] In other words, by using the third connecting structure, not only can the block A and the orthogonal block AZ1 be reliably connected, but also a substantially right-angle corner portion VI consisting of the wall portions v1 and v2 arranged in order can be constructed.

[0129] Also, the orthogonal block AZ2 is arranged in a regular array opposite the orthogonal block AZ1. At this time, one end 51 of the flat portion 5 of the orthogonal block AZ2 fits into the gap (not shown) formed by the contact of the block A, the opposing block AX2, and the orthogonal block AZ1. This results in a gap-free corner VI, ensuring sufficient strength.

[0130] Furthermore, the first convex portion 11 of block A is not only fitted into the engaging recess 4 of orthogonal block AZ1, but is also sandwiched between the first convex portion 11 and second convex portion 21 of orthogonal block AZ1 and one end 51 of the flat portion 5 of orthogonal block AZ2. Furthermore, the second convex portion of orthogonal block AZ1 is not only fitted into the first recess 10 of block A, but is also sandwiched between the first convex portion 11 and engaging convex portion 3 of block A. Furthermore, the engaging convex portion 3 of block A is not only fitted into the second recess 20 of orthogonal block AZ1, but is also sandwiched between the second convex portion 21 and one end 51 of the flat portion 5 of orthogonal block AZ1. In this way, block A and orthogonal block AZ1 are fitted into and sandwiched between each other, thereby being firmly connected in the horizontal direction.

[0131] In this way, by firmly connecting block A, orthogonal block AZ1, and orthogonal block AZ2, there is no need to use rebar or mortar, and the time required for mortar to harden when constructing a block wall can be saved, allowing construction to be completed in a shorter time.

[0132] Furthermore, when block A and orthogonal block AZ1 and orthogonal block AZ2 are fitted together, with the first recess and second protrusion, the second recess and engaging protrusion, and the engaging recess and first protrusion, the recess and protrusion, which are approximately rectangular in plan view, are fitted together while contacting shared edges 10a and 20a parallel to surface 50 of flat plate portion 5, and so are naturally arranged in an approximately straight line.

[0133] Therefore, when arranging the blocks, the block A, the orthogonal block AZ1, and the orthogonal block AZ2 can be arranged at approximately right angles in a sequential order arrangement without having to check the position of the blocks with a string or the like each time.

[0134] Furthermore, since block A, orthogonal block AZ1, and orthogonal block AZ2 have approximately the same shape when viewed from above, even workers who are not familiar with block construction can easily carry out the work, as it is simply a matter of fitting the recessed and protruding parts of blocks of the same shape together.

[0135] <About the corner arrangement structure (reverse-forward arrangement) of Block A> An arrangement structure in which blocks A are arranged in a corner shape will be described with reference to FIG. 3(b). 3(b) is a schematic diagram illustrating a corner VII consisting of two walls v3 and v4, in which a block A located at one end of wall v3 is connected to an orthogonal block AZ1, where wall v3 is formed in a reverse arrangement and wall v4 is formed in a forward arrangement. Hereinafter, this arrangement will be referred to as a "reverse-forward arrangement."

[0136] The corner VII is connected by the third connecting structure, as in the forward-forward arrangement. That is, by using the third connecting structure, it is possible not only to reliably connect the block A and the orthogonal block AZ1, but also to construct the approximately right-angle corner VII consisting of the walls v3 and v4 in the reverse-forward arrangement.

[0137] In the reverse-order arrangement, as shown in FIG. 3(b), a gap S1 is formed between the opposing block AY2 and the orthogonal block AZ2, which can be used as a space for passing piping or the like.

[0138] <Construction of walls using Block A> Below, using Figure 4, we will explain the construction method of a structure formed by combining block A, which is an example of one building block, with height-adjustable block B, which is an example of another building block, has approximately the same shape as block A in a plan view and is formed at approximately half the height H of block A.

[0139] Here, height-adjustable block B has a shape in which a three-dimensional object with a length L of approximately 20 cm, a width W of approximately 10 cm, and a height H of approximately 4 cm has been cut out in an uneven shape. Also, height-adjustable block B has approximately the same shape as block A in a plan view, so it is given the same reference numeral.

[0140] Here, the forward arrangement structure has been explained in Figure 2(a) using the arrangement of block A and opposing blocks AX1 and AX2, but in the construction of the first stage of wall section v1 using block A in this embodiment, it will be explained using a forward arrangement in which height adjustment blocks B (B1, B2) are combined instead of opposing blocks AX1 and AX2.

[0141] First, to form the foundation, a trench about 15 cm deep and 20 cm wide is dug from the ground surface, crushed stone is laid in it, and mortar is poured in (not shown).

[0142] Next, block A1 is placed at one end of wall v1 that forms corner VI. At this time, the length L of block A1 is accurately aligned with the extension direction of wall v1. By doing this, block A2 and height-adjusting blocks B1 and B2 to be placed subsequently can also be accurately positioned along the extension direction of wall v1 (approximately linear), eliminating the need to check the extension direction each time using a string or the like.

[0143] As a result, the row in which height-adjustable blocks B1 and B2 are arranged (hereinafter referred to as the "second row") is approximately half the height (1 / 2H) of the row in which blocks A1 and A2 are arranged (hereinafter referred to as the "first row"). However, since blocks A1 and A2 and height-adjustable blocks B1 and B2 are connected in a forward arrangement, the first row and second row are firmly connected horizontally.

[0144] Then, the opposing blocks AX1 and AX2 are stacked on top of the height-adjusting blocks B1 and B2 arranged in the second row, matching the uneven shapes of the height-adjusting blocks B1 and B2 to form the second row. In this way, the opposing blocks AX1 and AX2 in the second row are formed higher than the blocks A in the first row of the first row.

[0145] In this way, the opposing blocks AX1 and AX2 in the second row of the second column are securely connected to the blocks A1 and A2 in the first row of the first column in the horizontal direction by the first connecting structure. Also, the height-adjustable blocks B1 and B2 in the first row of the second column are securely connected to the opposing blocks AX1 and AX2 in the second row in the stacking direction via the blocks A1 and A2 in the first column.

[0146] Similarly, when the uneven shape of another block A is stacked on top of the blocks A1 and A2 in the first row of the first column to form the second row of the first column (not shown), the block A in the second row of the first column is formed to be higher than the blocks AX1 and AX2 in the second row of the second column.

[0147] At this time, the second block A in the first row is securely fitted with the second opposing blocks AX1 and AX2 in the second row by the first connecting structure, allowing the blocks to be stacked three-dimensionally in a forward order. Also, the first and second blocks A1 and A2 in the first row are connected to each other via the opposing blocks AX1 and AX2 in the second row.

[0148] By stacking the blocks in this way, the blocks in the first and second rows are firmly connected, forming a wall portion v1 with a predetermined strength. Note that by placing an adjustment block B on the top row of the wall portion v1, the heights of the first and second rows can be aligned.

[0149] Furthermore, since the surface 50 of the flat plate portion 5 appears on both sides of the wall portion v1 constructed using the block A, not only can the wall surface of the wall portion v1 be made approximately flat, but the wall surface of the wall portion v1 can also be decorated by applying a design such as a pattern or shape to the surface 50.

[0150] <Construction of corners using Block A's array structure> The construction method for corners VI of a structure formed by combining blocks A1 and A2, opposing blocks AX1 and AX2, height-adjusting blocks B1 and B2, orthogonal blocks AZ1 and AZ2, and height-adjusting blocks BZ1 and BZ2 will be described below with reference to Figure 4. Note that height-adjusting block BZ has substantially the same shape as block A in plan view, and is therefore given the same reference numeral. Also, while Figure 4 shows corners VI in a forward-forward arrangement, the same construction method is used for corners VII in a reverse-forward arrangement.

[0151] 3(a), the wall section v4 of the corner arrangement structure (forward-forward arrangement) was explained using an arrangement of block A and orthogonal blocks AZ1 and AZ2, but for the construction of the first stage of corner section VI, we will explain it using a forward arrangement that combines block A and height-adjusting blocks BZ1 and BZ2 instead of the orthogonal block AZ1 that fits with block A. Note that while FIG. 4 shows corner section VI in a forward-forward arrangement, the same procedure is applied to corner section VII in a reverse-forward arrangement.

[0152] First, as in the construction method for the wall section, an approximately L-shaped trench approximately 20 cm wide and 15 cm deep is dug from the ground surface to form the foundation, and crushed stone is laid inside and mortar is poured in (not shown).

[0153] Next, when constructing the wall portion v2, by accurately aligning the width W direction of the block A with the extension direction of the wall portion v2, the height-adjusting block BZ1 that fits with the block A can be accurately positioned in a direction approximately perpendicular to the block A (i.e., the extension direction of the wall portion v2). This eliminates the need to check the extension direction each time using a string or the like. The order of the blocks of the wall portion v2 is as described above.

[0154] The orthogonal block AZ2 is then arranged opposite the height adjusting block BZ1 in a forward arrangement, and the height adjusting block BZ2 is then arranged opposite the orthogonal block AZ2, thus forming the first stage of the wall portion v2.

[0155] Here, the row in which height-adjusting blocks BZ1 and BZ2 are arranged (hereinafter referred to as the "third row") has a height (1 / 2H) that is approximately half the height H of the row in which orthogonal blocks AZ2 are arranged (hereinafter referred to as the "fourth row"), but since block A1 and height-adjusting block BZ1 are connected in a forward arrangement, orthogonal block AZ2 and height-adjusting blocks B1 and B2 are firmly connected.

[0156] Then, an orthogonal block (not shown) is stacked on top of the height-adjusting blocks BZ1 and BZ2 arranged in the third row, matching the uneven shapes of the height-adjusting blocks BZ1 and BZ2 to form the second row of the third row. In this way, the orthogonal block in the second row of the third row is formed higher than the orthogonal block AZ2 in the first row of the fourth row.

[0157] In this way, the second orthogonal block in the third row is securely fitted horizontally with the first orthogonal block AZ2 in the fourth row by the first connecting structure, and the first height-adjusting block BZ1 in the third row and the second orthogonal block are firmly connected in the stacking direction via the fourth orthogonal block AZ2.

[0158] Similarly, when an orthogonal block (not shown) is stacked on top of the orthogonal block AZ2 in the first row of the fourth row, matching the concave and convex shapes to form the second row of the fourth row, the orthogonal block in the second row of the fourth row is formed to be higher than the orthogonal block in the third row.

[0159] At this time, the first orthogonal block AZ2 and the second orthogonal block in the fourth row are securely fitted with the second orthogonal block in the third row by the first connecting structure, so that the first orthogonal block AZ2 and the second orthogonal block in the fourth row are connected to each other via the second orthogonal block in the third row.

[0160] By stacking the blocks in this manner, the blocks in the third and fourth rows are firmly connected, so that a corner portion VII having a predetermined strength can be formed.

[0161] <Construction of a three-dimensional shape using the array structure of Block A> Hereinafter, a construction method for a three-dimensional structure formed by combining block A, which is an example of one building block, with height-adjustable block B, which is an example of another building block, will be described with reference to FIG.

[0162] First, as shown in Figure 5(a), the other end 52 of the flat plate portion 5 of block B is inserted into and fitted into the engagement recess 4 of block A. Then, for the row of blocks A, the blocks A are connected in a forward arrangement and a reverse arrangement to form a wall portion.

[0163] Furthermore, as shown in Figure 5(b), by connecting the height-adjustable blocks B vertically in a forward or reverse arrangement, the row of height-adjustable blocks B can be arranged along the wall formed by the blocks A. It is desirable to fit a remnant material Q1 into the gap S2 of the blocks B, as this will give the row of blocks B sufficient strength.

[0164] <Regarding the shapes of the first and second convex parts of the block> The shapes of the first protrusion 11 and the second protrusion 21 of the block are not necessarily limited to a substantially square shape in plan view. They may be any shape that can be connected to another block in a substantially straight line or at a substantially right angle. For example, the shapes shown in Figures 6(a) to 6(c) are possible.

[0165] 6(a) to 6(c), the first convex portion 11 and the second concave portion 20, and the second convex portion 21 and the first concave portion 10 are in contact with each other, sharing the common sides 10a, 20a. As a result, when the blocks are fitted together, the positions of the first convex portion 11 and the second concave portion 20, and the second convex portion 21 and the first concave portion 10 are fixed relative to each other, making it possible to arrange block A and block AX1, and block A and block AX2 in a substantially straight line, and also reducing the weight of the wall after construction.

[0166] [Second embodiment] 7, the block C is provided with a through-hole 6 that is bored in a substantially cylindrical shape in the height H direction of the block A between the first fitting portion 1 and the second fitting portion 2 and passes through the block A. Note that the shape of the through-hole 6 is not limited to a substantially cylindrical shape and may be other shapes.

[0167] By passing reinforcing bars T through the through holes 6 and then filling the through holes 6 with mortar (not shown), the wall portion can be strengthened after construction.

[0168] [Third embodiment] <About Block D> As shown in Figure 8(a), Block D has a shape with a length L of approximately 16 cm, a width W of approximately 6 cm, and a height H of approximately 8 cm cut out into concave and convex shapes, and is formed in a shape slightly smaller than Block A. Also, like the other blocks, Block D is composed of a first fitting portion 1, a second fitting portion 2, an engaging convex portion 3, an engaging concave portion 4, and a flat portion 5 which is a substantially flat plate.

[0169] 8(b) shows a diagram of a block D arranged in a forward-reverse arrangement. In the corner VIII formed by this arrangement, two gaps S3 and S4 are formed, which can be used as space for piping or cables.

[0170] In this way, the building blocks and the method for constructing a structure using building blocks according to the present invention are building blocks and a method for constructing a structure using building blocks that can be firmly connected in the horizontal and stacking directions, and that can construct walls and corners in a short period of time using building blocks that have approximately the same shape when viewed from above. [Explanation of symbols]

[0171] A Block (One Building Block) AX1 AX2 Opposite blocks (other building blocks) AY1 AY2 Opposite block (other building block) AZ direct block B Height Adjustment Block (Other Building Blocks) H Height VI VII Corner v1 v2 v3 v4 wall 1 First fitting portion 10 First recess 10a Shared Edge 11 First convex part 2 Second fitting part 20 Second recess 20a Shared Edge 21 Second convex part 3 Engagement protrusion 4 Engagement recess

Claims

1. a first fitting portion provided at a substantial center and having a first recess and a first protrusion that shares one of the sides that constitutes the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitutes the second recess in a plan view; an engaging protrusion provided at the other end opposite to the side where the second fitting portion is provided, the engaging protrusion sharing one of the sides that constitute the first recess in plan view; an engaging recess provided between the first convex portion and the second convex portion, the engaging recess sharing one of the sides constituting the first convex portion and the second convex portion in a plan view; the first recess and the second protrusion are formed in complementary shapes; the second recess and the first protrusion are formed in complementary shapes; The engaging recess and the engaging protrusion are formed in complementary shapes, A through hole through which a reinforcing bar can be inserted is provided between the first fitting portion and the second fitting portion. Building blocks.

2. a first fitting portion provided at a substantial center and having a first recess and a first protrusion that shares one of the sides that constitutes the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitutes the second recess in a plan view; an engaging protrusion provided at the other end opposite to the side where the second fitting portion is provided, the engaging protrusion sharing one of the sides that constitute the first recess in plan view; an engaging recess provided between the first convex portion and the second convex portion, the engaging recess sharing one of the sides constituting the first convex portion and the second convex portion in a plan view; the first recess and the first protrusion are formed in complementary shapes; the second recess and the second protrusion are formed in complementary shapes; The engaging recess and the engaging protrusion are formed in complementary shapes, A through hole through which a reinforcing bar can be inserted is provided between the first fitting portion and the second fitting portion. Building blocks.

3. a first fitting portion provided at a substantial center and having a first recess and a first protrusion that shares one of the sides that constitutes the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitutes the second recess in a plan view; an engaging protrusion provided at the other end opposite to the side where the second fitting portion is provided, the engaging protrusion sharing one of the sides that constitute the first recess in plan view; an engaging recess provided between the first convex portion and the second convex portion, the engaging recess sharing one of the sides constituting the first convex portion and the second convex portion in a plan view; the first recess and the second protrusion are formed in complementary shapes; the second recess and the engaging protrusion are formed in complementary shapes; The engaging recess and the first protrusion are formed in complementary shapes, A through hole through which a reinforcing bar can be inserted is provided between the first fitting portion and the second fitting portion. Building blocks.

4. A first fitting portion provided approximately at the center and having a first recess and a first protrusion that shares one of the sides that constitutes the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion that shares one of the sides that constitutes the second recess in a plan view; an engaging protrusion provided at the other end opposite to the side where the second fitting portion is provided, the engaging protrusion sharing one of the sides that constitute the first recess in plan view; an engaging recess provided between the first convex portion and the second convex portion, the engaging recess sharing one of the sides constituting the first convex portion and the second convex portion in a plan view; the first recess and the first protrusion or the second protrusion have shapes that allow them to fit together, the second recess and the first protrusion, the second protrusion, or the engaging protrusion have shapes that allow them to fit together, The engaging recess and the first protrusion or the engaging protrusion have shapes that allow them to fit together, A through hole through which a reinforcing bar can be inserted is provided between the first fitting portion and the second fitting portion. Building blocks.

5. A mounting member comprising: a first fitting portion provided approximately in the center and having a first recess and a first convex portion sharing one of the sides that constitute the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second convex portion sharing one of the sides that constitute the second recess in a plan view; an engaging convex portion provided at the other end opposite to the side on which the second fitting portion is provided and sharing one of the sides that constitute the first recess in a plan view; and an engaging concave portion provided between the first convex portion and the second convex portion and sharing one of the sides that constitute the first convex portion and the second convex portion in a plan view, The second recess and the first protrusion are formed in complementary shapes, the engaging recess and the engaging protrusion are formed in complementary shapes, and the first engaging portion of one building block is provided with a through hole through which a reinforcing bar can be inserted between the first engaging portion and the second engaging portion, and the second engaging portion of another building block having substantially the same shape as the one building block in a plan view is engaged with the first engaging portion of the one building block, and a wall is constructed by connecting the same building block and the other building block at positions shifted in the stacking direction using a connecting structure that connects the one building block and the other building block. A method of constructing structures using building blocks.

6. A mounting member comprising: a first fitting portion provided approximately in the center and having a first recess and a first convex portion sharing one of the sides that constitute the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second convex portion sharing one of the sides that constitute the second recess in a plan view; an engaging convex portion provided at the other end opposite to the side on which the second fitting portion is provided and sharing one of the sides that constitute the first recess in a plan view; and an engaging concave portion provided between the first convex portion and the second convex portion and sharing one of the sides that constitute the first convex portion and the second convex portion in a plan view, wherein the first recess and the first convex portion are formed in complementary shapes, and the second recess and the second convex portion are The engaging recess and the engaging protrusion are formed in complementary shapes, and a first engaging portion of one building block, which has a through hole between the first engaging portion and the second engaging portion and through which a reinforcing bar can be inserted, is engaged with the first engaging portion of another building block having substantially the same shape as the one building block in a plan view, and the second engaging portion of the same building block is engaged with the second engaging portion of the other building block, thereby connecting the same building block and the other building blocks at positions shifted in the stacking direction, thereby constructing a wall portion. A method of constructing structures using building blocks.

7. A mounting member comprising: a first fitting portion provided approximately in the center and having a first recess and a first protrusion sharing one of the sides that constitute the first recess in a plan view; a second fitting portion provided at one end and having a second recess and a second protrusion sharing one of the sides that constitute the second recess in a plan view; an engaging protrusion provided at the other end opposite to the side on which the second fitting portion is provided and sharing one of the sides that constitute the first recess in a plan view; and an engaging recess provided between the first protrusion and the second protrusion and sharing one of the sides that constitute the first protrusion and the second protrusion in a plan view, wherein the first recess and the second protrusion are formed in complementary shapes. The second recess and the engaging protrusion are formed in complementary shapes, and the engaging recess and the first protrusion are formed in complementary shapes, and a first engaging portion and an engaging protrusion of one building block, which has a through hole between the first engaging portion and the second engaging portion, through which a reinforcing bar can be inserted, are fitted with a second engaging portion and an engaging recess of another building block having substantially the same shape as the one building block in a plan view, and a connecting structure that connects the one building block and the other building block connects the same building block and the other building block at positions shifted in the stacking direction to construct a corner portion. A method of constructing structures using building blocks.

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