Sculptures and buildings

Abstract

The present invention provides a molded object formed by laminating cement-based materials, which can increase resistance to loads in intersecting directions. [Solution] A first laminated object 2 and a second laminated object 4 are arranged adjacent to each other in the stacking direction, and the first laminated object includes a first zigzag portion 12 having a zigzag shape formed by aligning a first one-side protrusion 14 protruding in one direction in a cross direction that intersects the stacking direction and a first other-side protrusion 16 protruding in the other direction opposite to the one cross direction, and the second laminated object includes a second zigzag portion 24 having a zigzag shape formed by aligning a second one-side protrusion 26 protruding in one direction in the cross direction and a second other-side protrusion 28 protruding in the other cross direction, and the first one-side protrusion and the second other-side protrusion are adjacent to each other in the stacking direction.

Description

[Technical Field]

[0001] This disclosure relates to a structure in which a first laminated structure and a second laminated structure, formed by laminating cement-based materials, are arranged adjacent to each other in the lamination direction, and to a building comprising this structure. [Background technology]

[0002] It has been known in the past to form structures such as walls, columns, beams, floors, or ceilings by layering cement-based materials using, for example, an additive manufacturing machine. For example, Patent Document 1 discloses the formation of multiple self-supporting walls formed by using a cement-based mixed fluid injected by a 3D printer (additive manufacturing machine). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2024-25359 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the technology described in Patent Document 1, the length of the wall in the width direction (the direction intersecting the stacking direction) is determined by the nozzle diameter of the additive manufacturing machine. As a result, the length of the wall in the width direction is short, and its resistance to loads in the width direction is low.

[0005] This disclosure has been made in view of the above-mentioned problems, and aims to provide a molded object formed by laminating cement-based materials that can increase resistance to loads in intersecting directions. [Means for solving the problem]

[0006] In order to achieve the above object, the object according to the present disclosure is an object in which a first layered object and a second layered object, which are formed by layering cement-based materials, are arranged adjacent to each other in a layering direction, wherein the first layered object includes a first zigzag portion having a zigzag shape formed by aligning a first one-side protruding portion that protrudes in one direction in a cross direction that intersects with the layering direction and a first other-side protruding portion that protrudes in the other direction opposite to the one side of the cross direction, and the second layered object includes a second zigzag portion having a zigzag shape formed by aligning a second one-side protruding portion that protrudes in one direction in the cross direction and a second other-side protruding portion that protrudes in the other direction in the cross direction, and wherein, assuming that a straight line passing through one end and the other end of the first zigzag portion is a first virtual line, The first one-side protrusion is a portion of the first zigzag portion on one side of the first virtual line in the intersecting direction, and the first other-side protrusion is a portion of the first zigzag portion on the other side of the first virtual line in the intersecting direction. If a straight line passing through one end and the other end of the second zigzag portion is defined as a second virtual line, the second one-side protrusion is a portion of the second zigzag portion on the other side of the second virtual line in the intersecting direction, and the second other-side protrusion is a portion of the second zigzag portion on one side of the second virtual line in the intersecting direction. The first one-side protrusion and the second other-side protrusion are adjacent to each other in the stacking direction, and the first other-side protrusion and the second one-side protrusion are adjacent to each other in the stacking direction. [Effects of the Invention]

[0007] According to the present disclosure, the resistance of a molded object, formed by laminating cement-based materials, to intersecting loads can be increased. [Brief explanation of the drawings]

[0008] [Figure 1] This diagram schematically shows an example of the configuration of an additive manufacturing machine. [Figure 2] This is a schematic perspective view showing a part of the structure of a fabricated object according to one embodiment. [Figure 3]This is a schematic perspective view showing the configuration of a first additively fabricated object according to one embodiment. [Figure 4] This is a view from above of the first additively fabricated object according to one embodiment. [Figure 5] This is a schematic perspective view showing the configuration of a second additively fabricated object according to one embodiment. [Figure 6] This is a view from above of a second additively fabricated object according to one embodiment. [Figure 7] FIG. 2 is a perspective view schematically illustrating the configuration of a first layered object for an end portion according to one embodiment. [Figure 8] This is a schematic perspective view showing the configuration of a second end-piece additively fabricated object according to one embodiment. [Figure 9] This is a view from above of a first additively fabricated object according to several embodiments. [Figure 10] This is a perspective view that schematically shows the structure of the second additively fabricated object relating to the first modified example. [Figure 11] This is a perspective view schematically showing the structure of the second additively fabricated object relating to the second modified example. [Figure 12] This is a perspective view that schematically shows the structure of the second additively fabricated object according to the third modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following description of the manufactured objects according to the embodiments of this disclosure will be based on the drawings. These embodiments represent one aspect of this disclosure and are not limiting, and can be modified at will within the scope of the technical idea of ​​this disclosure.

[0010] The object according to this disclosure consists of a first additively manufactured object and a second additively manufactured object, which are formed by layering cement-based materials in an additive manufacturing machine, and are arranged adjacent to each other in the layering direction. First, an example of the configuration of the additive manufacturing machine 100 will be described with reference to Figure 1.

[0011] <Additive manufacturing machine> FIG. 1 is a diagram schematically illustrating an example of the configuration of an additive manufacturing machine 100. As shown in FIG. 1, the additive manufacturing machine 100 includes a nozzle 102, a movement mechanism 104, a supply pump 106, and a control device 108. The cementitious material M is, for example, mortar or concrete, and is produced by mixing water, cement, aggregate, and the like. The cementitious material M may be made from limestone, which is primarily composed of calcium carbonate, or may be made from gypsum, fly ash, blast furnace slag, molten slag, siliceous admixture, sewage incineration sludge, kaolin, incineration ash, or the like.

[0012] The nozzle 102 has an opening at its tip, and discharges the cement material M from this opening 102a. The movement mechanism 104 moves the nozzle 102 in any direction. Specifically, the movement mechanism 104 is an arm that supports the nozzle 102, and is electrically connected to a control device 108. When the arm moves in any direction in accordance with instructions from the control device 108, the nozzle 102 moves in both the vertical and horizontal directions.

[0013] The supply pump 106 supplies the cementitious material M to the nozzle 102. The supply pump 106 is electrically connected to the control device 108, and supplies the amount of cementitious material M to the nozzle 102 in accordance with instructions from the control device 108.

[0014] The control device 108 is a device for controlling the amount of cement-based material M discharged from the nozzle 102 and the movement of the nozzle 102 in order to fabricate an additively manufactured object having a desired shape. The control device 108 is a computer such as an electronic control device, and includes, for example, a processor such as a CPU or GPU (not shown), memory such as ROM or RAM, and an I / O interface. The control device 108 transmits instructions to each component of the additive manufacturing machine 100 (the arm and supply pump 106 mentioned above) by having the processor operate (calculate, etc.) according to the instructions of a program loaded into memory. In some embodiments, the control device 108 is configured to receive signals for understanding the status of each component. In some embodiments, the control device 108 is a cloud server located in a cloud environment.

[0015] In this disclosure, the additive manufacturing machine 100 is described as manufacturing an additively manufactured object by stacking cement-based material M in the vertical direction D1. In other words, the stacking direction is the vertical direction D1. Each layer of the additively manufactured object is formed by continuously extruding cement-based material M while moving the nozzle 102 (so-called single-stroke drawing). Each layer of the additively manufactured object may include non-stacked areas (such as notches 18 described later) where cement-based material M is not stacked. The method for forming non-stacked areas is not particularly limited. Non-stacked areas can be formed, for example, by interrupting the extrusion of cement-based material M from the nozzle 102, moving the nozzle 102 to a predetermined position, and then continuously extruding cement-based material M while moving the nozzle 102 again.

[0016] <Sculpture> The fabricated object 1 is assembled by combining multiple additively fabricated objects created by the additive manufacturing machine 100 described above. The fabricated object 1 is, for example, a wall, column, floor, ceiling, etc., and is a component that makes up a building. In this disclosure, the case in which the fabricated object 1 is a wall 1A(1) of a building is used as an example, and the length direction of the wall is simply referred to as "length direction D2", and the width direction (thickness direction) of the wall is simply referred to as "width direction D3". The vertical direction D1, the length direction D2, and the width direction D3 are all orthogonal to each other.

[0017] Figure 2 is a schematic perspective view showing a part of the structure of wall 1A according to one embodiment. Figure 3 is a schematic perspective view showing the structure of the first additive manufactured object 2 according to one embodiment. Figure 4 is a view of the first additive manufactured object 2 according to one embodiment from above. Figure 5 is a schematic perspective view showing the structure of the second additive manufactured object 4 according to one embodiment. Figure 6 is a view of the second additive manufactured object 4 according to one embodiment from above.

[0018] As shown in Figure 2, wall 1A includes a first additively manufactured object 2 and a second additively manufactured object 4, both manufactured by the additive manufacturing machine 100 described above. The first additively manufactured object 2 and the second additively manufactured object 4 are arranged adjacent to each other in the vertical direction D1. In the embodiment illustrated in Figure 2, wall 1A further includes a third additively manufactured object 6, a fourth additively manufactured object 8, a fifth additively manufactured object 10, and a sixth additively manufactured object 11, all manufactured by the additive manufacturing machine 100 described above. Each of the first additively manufactured object 2 to the sixth additively manufactured object 11 is an additively manufactured object that is manufactured independently of each other and, when combined, constitutes a part of wall 1A (see Figure 1).

[0019] The first additive manufactured object 2 will now be described. As shown in Figures 3 and 4, the first additive manufactured object 2 includes a first zigzag portion 12 having a zigzag shape formed by the alternating arrangement of a first one-sided protrusion 14 that protrudes in one direction intersecting the vertical direction D1 (layering direction) and a first other-sided protrusion 16 that protrudes in the other direction opposite to the one direction intersecting the intersection. In one embodiment, the first one-sided protrusion 14 protrudes to the right, which is one side of the width direction D3, and the first other-sided protrusion 16 protrudes to the left, which is the other side of the width direction D3. The first one-sided protrusion 14 is located on one side of the length direction D2 than the first other-sided protrusion 16.

[0020] As illustrated in Figure 4, each of the first one-sided projection 14 and the first other-sided projection 16 has a curved shape such that, when viewed from above, the overall shape changes smoothly along the entire length direction D2. The straight line passing through one end 12c and the other end 12d of the first zigzag section 12 is defined as the first imaginary line L1. The first one-sided projection 14 is the portion of the first zigzag section 12 to the right of the first imaginary line L1 in the width direction D3. The first one-sided projection 14 includes one end 12c of the first zigzag section 12, and as it moves from one end 12c toward the other side in the length direction D2, it moves away from the first imaginary line L1 and then returns to the first imaginary line L1. The first other-sided projection 16 is the portion of the first zigzag section 12 to the left of the first imaginary line L1 in the width direction D3. The first other-side projection 16 includes the other end 12d of the first zigzag portion 12, and moves away from the first virtual line L1 as it moves toward one side in the longitudinal direction D2 from the other end 12d of the first zigzag portion 12, and then returns to the first virtual line L1.

[0021] In one embodiment, as illustrated in Figures 3 and 4, a notch 18 is formed on the surface of the first zigzag portion 12 facing the second laminated object 4. That is, the first zigzag portion 12 has a downwardly recessed notch 18 formed on its upper surface 12a. The lower end of the second zigzag portion 24 is fitted into this notch 18. The notch 18 is located in the center of the first zigzag portion 12 so as to be at the boundary between the first one-sided projection 14 and the first other-sided projection 16. The depth of the notch 18 is not particularly limited.

[0022] In one embodiment, as illustrated in Figures 3 and 4, the first additively manufactured object 2 includes a first joint portion 20 integrally additively manufactured on one end portion 13 of the first zigzag portion 12 in the longitudinal direction D2. This first joint portion 20 has an annular shape when viewed from above and has a first space 21 extending in the vertical direction D1. However, this disclosure does not limit the first joint portion 20 to an annular shape. The first joint portion 20 may have any shape as long as it has a first space 21, for example, a C shape.

[0023] In one embodiment, as illustrated in Figures 3 and 4, the first additively manufactured object 2 includes a first joint portion 22 on the other end 15 of the first zigzag portion 12 in the longitudinal direction D2, which is integrally additively manufactured on the other end. This first joint portion 22 on the other end has an annular shape when viewed from above and has a first space 23 on the other end that extends in the vertical direction D1. However, this disclosure does not limit the first joint portion 22 on the other end to an annular shape. The first joint portion 22 on the other end can have any shape as long as it has a first space 23 on the other end, for example, a C shape.

[0024] As illustrated in Figure 3, the first joint 20 is located between the upper surface 12a and the lower surface 12b of the first zigzag portion 12 in the vertical direction D1. The other end first joint 22 is located below the first joint 20. The lower surface 22b of the other end first joint 22 is continuous with the lower surface 12b of the first zigzag portion 12. The lower surface 20b of the first joint 20 and the upper surface 22a of the other end first joint 22 are equal in position to each other or nearly equal in position to each other in the vertical direction D1. The upper surface 20a of the first joint 20 and the concave surface 18a of the notch 18 are equal in position to each other or nearly equal in position to each other in the vertical direction D1.

[0025] The second additively manufactured object 4 will now be described. As shown in Figures 5 and 6, the second additively manufactured object 4 includes a second zigzag portion 24 having a zigzag shape formed by the alternating arrangement of a second one-sided projection 26 projecting in one direction of the intersection and a second other-sided projection 28 projecting in the other direction of the intersection. In one embodiment, the second one-sided projection 26 projects to the right, and the second other-sided projection 28 projects to the left. The second one-sided projection 26 is located on the other side in the longitudinal direction D2 than the second other-sided projection 28.

[0026] As illustrated in Figure 6, each of the second one-sided projection 26 and the second other-sided projection 28 has a curved shape such that the outer shape changes smoothly over the entire length direction D2 when viewed from the vertical direction D1. The straight line passing through one end 24c and the other end 24d of the second zigzag section 24 is defined as the second imaginary line L2. The second one-sided projection 26 is the portion of the second zigzag section 24 to the right of the second imaginary line L2 in the width direction D3. The second one-sided projection 26 includes the other end 24d of the second zigzag section 24, and as it moves toward one side in the length direction D2 from the other end 24d of the second zigzag section 24, it moves away from the second imaginary line L2 and then returns to the second imaginary line L2. The second other-sided projection 28 is the portion of the second zigzag section 24 to the left of the second imaginary line L2 in the width direction D3. The second other-side protrusion 28 includes one end 24c of the second zigzag portion 24, and as it moves from the one end 24c of the second zigzag portion 24 toward the other side in the longitudinal direction D2, it moves away from the second imaginary line L2 and then returns to the second imaginary line L2.

[0027] In one embodiment, as illustrated in Figures 5 and 6, a notch 30 is formed on the side of the second zigzag section 24 opposite to the first laminated object 2. That is, the second zigzag section 24 has a downwardly recessed notch 30 formed on its upper surface 24a. The wall 1A includes an unillustrated laminated object positioned above the second laminated object 4, and the notch 30 is fitted into the lower end of this laminated object. The notch 30 is located in the center of the second zigzag section 24 so as to be at the boundary between the second one-sided projection 26 and the second other-sided projection 28. The depth of the notch 30 is not particularly limited. Note that if the second laminated object 4 includes the upper surface of the wall 1A, the notch 30 may not be formed.

[0028] In one embodiment, as illustrated in Figures 5 and 6, the second additively manufactured object 4 includes a second joint portion 32 integrally additively manufactured on one end portion 25 of the second zigzag portion 24 in the longitudinal direction D2. This second joint portion 32 has an annular shape when viewed from above and has a second space 33 extending in the vertical direction D1. However, this disclosure does not limit the second joint portion 32 to an annular shape. The second joint portion 32 may have any shape as long as it has a second space 33, for example, a C shape.

[0029] In one embodiment, as illustrated in Figures 5 and 6, the second additively manufactured object 4 includes a second joint portion 34 on the other end 27 of the second zigzag portion 24 in the longitudinal direction D2, which is integrally additively manufactured on the other end. This second joint portion 34 on the other end has an annular shape when viewed from above and has a second space 35 on the other end that extends in the vertical direction D1. However, this disclosure does not limit the second joint portion 34 on the other end to an annular shape. The second joint portion 34 on the other end can have any shape as long as it has a second space 35 on the other end, for example, a C shape.

[0030] As illustrated in Figure 5, the second joint 34 on the other end is located between the upper surface 24a and the lower surface 24b of the second zigzag section 24 in the vertical direction D1. The second joint 32 is located below the second joint 34 on the other end. The lower surface 32b of the second joint 32 is continuous with the lower surface 24b of the second zigzag section 24. The upper surface 32a of the second joint 32 and the lower surface 34b of the second joint 34 on the other end are equal in position to each other or nearly equal in the vertical direction D1. If the second laminated object 4 includes the upper surface of the wall 1A, the upper surface 34a of the second joint 34 on the other end may be continuous with the upper surface 24a of the second zigzag section 24.

[0031] The third layered object 6, the fourth layered object 8, the fifth layered object 10, and the sixth layered object 11 will now be described. The third layered object 6 and the fifth layered object 10 are each manufactured by the layered object manufacturing machine 100 using the same method as the first layered object 2, and have the same shape as the first layered object 2. Therefore, a description of the configuration of the third layered object 6 and the fifth layered object 10 will be omitted. Hereinafter, the portion of the third layered object 6 corresponding to the first zigzag portion 12 will be referred to as the third plate portion 61, and the portion of the third layered object 6 corresponding to the other end side first joint portion 22 will be referred to as the third joint portion 62. Note that the present disclosure does not limit the third plate portion 61 to having the same shape as the first zigzag portion 12. The third plate portion 61 may also be flat.

[0032] The fourth layered object 8 and the sixth layered object 11 are each formed by the layered object building machine 100 using the same method as the second layered object 4, and have the same shape as the second layered object 4. Therefore, a description of the configuration of each of the fourth layered object 8 and the sixth layered object 11 will be omitted. Hereinafter, the portion of the fourth layered object 8 corresponding to the second zigzag portion 24 will be referred to as a fourth plate portion 66, and the portion of the fourth layered object 8 corresponding to the other-end-side second joint portion 34 will be referred to as a fourth joint portion 67. Note that the present disclosure does not limit the fourth plate portion 66 to having the same shape as the second zigzag portion 24. The fourth plate portion 66 may also be flat.

[0033] In one embodiment, as illustrated in Figure 2, the second additively manufactured object 4 is positioned on the first additively manufactured object 2 such that the second other-side projection 28 overlaps with the first one-side projection 14 in the longitudinal direction D2, and the second one-side projection 26 overlaps with the first other-side projection 16 in the longitudinal direction D2. With this arrangement, the first one-side projection 14 and the second other-side projection 28 are adjacent to each other in the vertical direction D1. When viewed from the vertical direction D1, a first gap 40 is formed by being surrounded by the first one-side projection 14 and the second other-side projection 28. Similarly, the first other-side projection 16 and the second one-side projection 26 are adjacent to each other in the vertical direction D1. A second gap 42 is formed by being surrounded by the first other-side projection 16 and the second one-side projection 26.

[0034] In one embodiment, as illustrated in Figure 2, the third additive manufacturing object 6 is arranged adjacent to each other on one side of the first additive manufacturing object 2 in the longitudinal direction D2. The first joint 20 is located on the third joint 62. The fourth additive manufacturing object 8 is arranged adjacent to each other on one side of the second additive manufacturing object 4 in the longitudinal direction D2. Furthermore, the fourth additive manufacturing object 8 is located on the third additive manufacturing object 6. In the vertical direction D1, the third joint 62, the first joint 20, the second joint 32, and the fourth joint 67 are arranged from bottom to top in that order.

[0035] In one embodiment, the wall 1A further includes a first end-type additive manufactured object 80 and a second end-type additive manufactured object 90, which are manufactured by the additive manufacturing machine 100 described above (see Figure 1). The first end-type additive manufactured object 80 and the second end-type additive manufactured object 90 are arranged adjacent to each other in the vertical direction D1. Figure 7 is a schematic perspective view showing the configuration of the first end-type additive manufactured object 80 according to one embodiment. Figure 8 is a schematic perspective view showing the configuration of the second end-type additive manufactured object 90 according to one embodiment.

[0036] As illustrated in Figure 7, the first end laminated product 80 includes a plate-shaped first end plate portion 81 and a first end joint portion 82 which is integrally laminated with the first end plate portion 81 at one end portion 83 of the first end plate portion 81. The first end laminated product 80 does not have a first opposite end joint portion 84 (shown as a dotted line in Figure 7) formed at the other end portion 85 of the first end plate portion 81. In the embodiment illustrated in Figure 7, the first end plate portion 81 has a curved shape that smoothly changes over its entire length D2 when viewed from above and protrudes to the right in the width D3. The first end joint portion 82 has an annular shape when viewed from above. A notch 85 is formed on the upper surface of the first end plate portion 81.

[0037] In one embodiment, the first end-piece additive manufacturing structure 80 is manufactured using the manufacturing method of the first additive manufacturing structure 2. That is, the first end-piece additive manufacturing structure 80 is manufactured by stopping the discharge of the cement-based material M when the nozzle 102 reaches the middle of the first other-side projection 16 (for example, when it reaches the leftmost inflection point in the width direction D3). With this method, since the manufacturing method of the first additive manufacturing structure 2 is used, the cost required to manufacture the first end-piece additive manufacturing structure 80 can be reduced.

[0038] As illustrated in Figure 8, the second end laminated product 90 includes a plate-shaped second end plate portion 91 and a second end joint portion 92 which is integrally laminated with the second end plate portion 91 at one end portion 93 of the second end plate portion 91. The second end laminated product 90 does not have a second opposite end joint portion 94 (shown as a dotted line in Figure 8) formed at the other end portion 95 of the second end plate portion 91. In the embodiment illustrated in Figure 8, the second end plate portion 91 has a curved shape that smoothly changes over its entire length D2 when viewed from above, and protrudes to the left in the width D3. The lower end of the second end plate portion 91 is fitted into the notch 85 of the first end plate portion 81 described above. The second end joint portion 92 has an annular shape when viewed from above. A notch 95 is formed on the upper surface of the second end plate portion 91.

[0039] In one embodiment, the second layered object for end portion 90 is manufactured using the manufacturing method for the second layered object 4. That is, the second layered object for end portion 90 is manufactured by stopping the discharge of the cementitious material M when the nozzle 102 reaches the middle of the second one-side protrusion 26 (for example, when it reaches the leftmost inflection point in the width direction D3). This method, which uses the manufacturing method for the second layered object 4, can reduce the cost required to manufacture the second layered object for end portion 90.

[0040] In one embodiment, the second end portion layered object 90 is disposed on the first end portion layered object 80 so that the second end portion plate 91 overlaps the first end portion plate 81 in the length direction D2. With this arrangement, the second end portion plate 91 and the first end portion plate 81 are adjacent to each other in the up-down direction D1. When viewed from the up-down direction D1, a gap (not shown) is formed by being surrounded by the second end portion plate 91 and the first end portion plate 81.

[0041] In some embodiments, although not shown, the wall 1A further includes a rod member that passes through the third space 71 of the third joint 62 corresponding to the first space 21, the first space 21, the second space 33, and the fourth space 72 of the fourth joint 67 corresponding to the second space 33. The rod member is, for example, a reinforcing bar. With this configuration, the first joint 20 to the fourth joint 67 can be firmly joined to each other. In some embodiments, the third space 71, the first space 21, the second space 33, and the fourth space 72 are each filled with a filler such as mortar. With this configuration, the first joint 20 to the fourth joint 67 can be firmly joined to each other.

[0042] In some embodiments, the second layered object 4 has the same shape as the first layered object 2. In this case, the second layered object 4 included in the wall 1A is the first layered object 2 turned upside down. In other words, a plurality of first layered objects 2 are alternately stacked upside down. This configuration can reduce the manufacturing cost of the wall 1A.

[0043] (Actions and Effects) The operation and effects of a wall 1A according to one embodiment will be described. According to one embodiment, since the wall 1A is configured to be wide in the width direction D3, it can increase the resistance to loads in the width direction D3 compared to a flat wall, and can prevent it from falling towards the ground or floor.

[0044] According to one embodiment, since a first gap 40 and a second gap 42 are formed in the wall 1A, a wall 1A that allows for natural light can be provided. In other words, the wall 1A can also function as a planting wall. Incidentally, when a window is provided in a wall to allow for natural light, reinforcing members may be provided so that the wall has sufficient load-bearing capacity. However, according to one embodiment, a wall 1A that allows for natural light can be provided without providing reinforcing members. The first laminated object 2 may include two or more first one-sided protrusions 14. The first laminated object 2 may include two or more first other-sided protrusions 16. Similarly, the second laminated object 4 may include two or more second one-sided protrusions 26. The second laminated object 4 may include two or more second other-sided protrusions 28. In addition to the first gap 40 and the second gap 42, the wall 1A may further form a third gap (not shown) by being surrounded, for example, by a second first other-side projection 16 and a second second other-side projection 28.

[0045] For example, if the first one-sided projection 14 has a bent shape such that it is folded back at a right angle, stress will concentrate at the folded portion, reducing the resistance of the wall 1A against the width direction D3. According to one embodiment, since the first one-sided projection 14, the first other-sided projection 16, the second one-sided projection 26, and the second other-sided projection 28 each have a curved shape over their entire length in the length direction D2, it is possible to suppress the concentration of stress in a part and suppress the reduction of the resistance of the wall 1A against the width direction D3.

[0046] This disclosure is not limited to the fact that each of the first one-sided projection 14, the first other-sided projection 16, the second one-sided projection 26, and the second other-sided projection 28 has a curved shape over its entire length D2. In some embodiments, at least one of the first one-sided projection 14, the first other-sided projection 16, the second one-sided projection 26, and the second other-sided projection 28 has a curved shape over its entire length D2. In some embodiments, at least one of the first one-sided projection 14, the first other-sided projection 16, the second one-sided projection 26, and the second other-sided projection 28 has an uneven shape that is uneven along the width D3. The curved shape of the first one-sided projection 14 and the curved shape of the first other-sided projection 16 may be different from each other or the same from each other. The curved shape of the first one-sided projection 14 and the curved shape of the first other-sided projection 16 may be of different sizes or the same size. Similarly, the curved shape of the second one-sided projection 26 and the curved shape of the second other-sided projection 28 may be of different sizes or the same size. The curved shape of the second one-sided projection 26 and the curved shape of the second other-sided projection 28 may be of different sizes or the same size.

[0047] Figure 9 is a view from above of a first additively fabricated object 2 according to several embodiments. As illustrated in Figure 9, the first one-sided projection 14 includes a first liner portion 75, a curved portion 76, and a second liner portion 77. The first liner portion 75 extends linearly from the first joint portion 20 to the other side in the longitudinal direction D2. This first liner portion 75 extends to the right as it moves toward the other side in the longitudinal direction D2. The second liner portion 77 extends linearly from the first other-sided projection 16 to one side in the longitudinal direction D2. This second liner portion 77 extends to the left as it moves toward the other side in the longitudinal direction D2. The curved portion 76 connects the first liner portion 75 and the second liner portion 77. The curved portion 76 is curved convexly to the right so that its outer shape changes smoothly.

[0048] According to one embodiment, the lower end of the second zigzag portion 24 is fitted into the notch 18 formed on the upper surface 12a of the first zigzag portion 12, thereby preventing the position of the second layered object 4 from shifting relative to the first layered object 2.

[0049] According to one embodiment, the third layered object 6 is arranged adjacent to one another on one side of the first layered object 2 in the longitudinal direction D2, and the fourth layered object 8 is arranged adjacent to one another on one side of the second layered object 4 in the longitudinal direction D2. This allows the length of the wall 1A in the longitudinal direction D2 to be arbitrarily long. In the one embodiment, the first layered object 2, the third layered object 6, and the fifth layered object 10 are arranged on a straight line parallel to the longitudinal direction D2, but the present disclosure is not limited to this. For example, the third layered object 6 may be arranged at an angle with respect to the longitudinal direction D2 by forming an axis at the third joint 62 and rotating the third plate portion 61.

[0050] The present disclosure does not limit the shape of the layered object included in the wall 1A to the shape of the first layered object 2 or the shape of the second layered object 4. Fig. 10 is a perspective view schematically showing the configuration of the second layered object 4 according to a first modified example. Fig. 11 is a perspective view schematically showing the configuration of the second layered object 4 according to a second modified example. Fig. 12 is a perspective view schematically showing the configuration of the second layered object 4 according to a third modified example. The first layered object 2 may have the shape shown in Figs. 10 to 12.

[0051] 10, the second joint 32 is located higher than the other-end-side second joint 34. The lower surface 34b of the other-end-side second joint 34 is continuous with the lower surface 24b of the second zigzag portion 24. The lower surface 32b of the second joint 32 and the upper surface 34a of the other-end-side second joint 34 are at the same or almost the same position in the up-down direction D1.

[0052] In the embodiment illustrated in Figure 11, the lower surface 32b of the second joint 32 is continuous with the lower surface 24b of the second zigzag portion 24. The lower surface 34b of the second joint 34 at the other end is continuous with the lower surface 24b of the second zigzag portion 24. The upper surface 32a of the second joint 32 and the upper surface 34a of the second joint 34 at the other end are equal to or nearly equal to each other in the vertical direction D1.

[0053] In the embodiment illustrated in Figure 12, the second joint 32 and the second joint 34 on the other end are positioned so as to overlap each other in the vertical direction D1 between the upper surface 24a and the lower surface 24b of the second zigzag portion 24. The lower surface 32b of the second joint 32 and the lower surface 34b of the second joint 34 on the other end are at the same or nearly the same position in the vertical direction D1.

[0054] In one embodiment, as illustrated in Figure 2, the third joint 62, the first joint 20, the second joint 32, and the fourth joint 67 were arranged in the order from bottom to top in the vertical direction D1, but this disclosure is not limited to this embodiment. By combining the additively manufactured objects illustrated in Figures 3, 5, and 10-12, the first joint 20 to the fourth joint 67 can be arranged in any order in the vertical direction D1. In some embodiments, the first joint 20, the third joint 62, the second joint 32, and the fourth joint 67 are arranged in the order from bottom to top in the vertical direction D1. In some embodiments, the first joint 20, the third joint 62, the fourth joint 67, and the second joint 32 are arranged in the order from bottom to top in the vertical direction D1. In some embodiments, the third joint 62, the first joint 20, the fourth joint 67, and the second joint 32 are arranged in the order.

[0055] The contents described in each of the above embodiments can be understood, for example, as follows:

[0056] [1] The object (1) according to the present disclosure is an object in which a first layered object (2) and a second layered object (4) formed by layering a cementitious material (M) are arranged adjacent to each other in a layering direction (D1), the first layered object includes a first zigzag portion (12) having a zigzag shape formed by arranging a first one-side protruding portion (14) protruding in one direction in a cross direction (D3) that intersects with the stacking direction and a first other-side protruding portion (16) protruding in the other direction opposite to the one side of the cross direction, the second layered object includes a second zigzag portion (24) having a zigzag shape formed by aligning a second one-side protruding portion (26) protruding in one direction in the intersecting direction and a second other-side protruding portion (28) protruding in the other direction in the intersecting direction, when a straight line passing through one end and the other end of the first zigzag portion is defined as a first imaginary line, the first one-side protrusion is a portion of the first zigzag portion on one side of the first imaginary line in the intersecting direction, and the first other-side protrusion is a portion of the first zigzag portion on the other side of the first imaginary line in the intersecting direction, when a straight line passing through one end and the other end of the second zigzag portion is defined as a second imaginary line, the second one-side protruding portion is a portion of the second zigzag portion that is on the other side of the second imaginary line in the intersecting direction, and the second other-side protruding portion is a portion of the second zigzag portion that is on one side of the second imaginary line in the intersecting direction, The first one-side protrusion and the second other-side protrusion are adjacent to each other in the stacking direction, and the first other-side protrusion and the second one-side protrusion are adjacent to each other in the stacking direction.

[0057] According to the configuration described in [1] above, the structure includes the first zigzag portion and the second zigzag portion, so that it can be configured to have a wide cross-sectional area. This increases the resistance of the structure to loads in the cross-sectional area. For example, if the structure is a wall, the resistance in the thickness direction of the wall can be increased compared to a flat wall, and the structure can be prevented from tipping toward the ground or floor.

[0058] [2] In some embodiments, in the configuration described in [1] above, When viewed from the stacking direction, a first gap (40) is formed by being surrounded by the first one-sided protrusion and the second other-sided protrusion, and a second gap (42) is formed by being surrounded by the first other-sided protrusion and the second one-sided protrusion.

[0059] According to the configuration described in [2] above, a structure having lighting properties can be provided by forming the first gap and the second gap. For example, when the structure is a wall and a window is provided in this wall, a reinforcing member is sometimes provided to ensure that the wall has sufficient strength. However, according to the configuration described in [2] above, a structure having lighting properties can be provided without providing a reinforcing member.

[0060] [3] In some embodiments, in the configuration described in [1] or [2] above, At least one of the first one-sided protrusion, the first other-sided protrusion, the second one-sided protrusion, and the second other-sided protrusion has a curved shape such that its outer shape changes smoothly when viewed from the stacking direction.

[0061] For example, if the first one-side protrusion has a bent portion, stress will be concentrated at the bent portion, reducing the resistance force in the transverse direction. According to the configuration described in [3] above, stress can be prevented from concentrating on a portion of at least one of the first one-side protrusion, the first other-side protrusion, the second one-side protrusion, and the second other-side protrusion, thereby preventing a reduction in the resistance force in the transverse direction.

[0062] [4] In some embodiments, in the configuration described in any one of [1] to [3] above, A notch (18) is formed on the surface (12a) of the first zigzag portion that faces the second additively manufactured object, into which a part of the second zigzag portion is fitted.

[0063] According to the configuration described in [5] above, it is possible to prevent the position of the second layered object from shifting relative to the first layered object.

[0064] [5] In some embodiments, in the configuration described in any one of [1] to [4] above, a third layered object (6) formed by layering a cementitious material (M), the third layered object being disposed adjacent to the first layered object in the intersecting direction; a fourth layered object (8) formed by layering a cementitious material (M), the fourth layered object being disposed adjacent to the second layered object in the intersecting direction and the third layered object being disposed adjacent to the third layered object in the layering direction; the first layered object includes a first joint portion (20) integrally formed with the first zigzag portion and connected to one end portion (13) of the first zigzag portion; the second layered object includes a second joint portion (32) integrally formed with the second zigzag portion and connected to one end portion (25) of the second zigzag portion, the third layered object includes a plate-shaped third plate portion (61) and a third joint portion (62) integrally formed with the third plate portion at one end of the third plate portion, the fourth layered object includes a plate-shaped fourth plate portion (66) and a fourth joint portion (67) integrally formed with the fourth plate portion at one end of the fourth plate portion, In the stacking direction, the first joint portion, the third joint portion, the second joint portion, and the fourth joint portion or the first joint portion, the third joint portion, the fourth joint portion, and the second joint portion or the third joint, the first joint, the second joint, and the fourth joint or The third joint portion, the first joint portion, the fourth joint portion, and the second joint portion are arranged in any order.

[0065] According to the configuration described in [5] above, the length of the shaped object in the intersecting direction can be increased arbitrarily.

[0066] [6] In some embodiments, in the configuration described in any one of [1] to [5] above, Further provided is an end layered object (80, 90) formed by layering a cement-based material, The end layered object includes a plate-shaped end plate portion (81, 91) and an end joint portion (82, 92) integrally formed with the end plate portion at one end portion (83, 93) of the end plate portion, The end layered object has an opposite end joint (84, 94) formed at the other end (85, 95) of the end plate portion.

[0067] According to the configuration described in [6] above, it is possible to increase the variety of shapes of the shaped object.

[0068] [7] In some embodiments, the building comprises a structure according to any one of [1] to [6] above.

[0069] According to the configuration described in [7] above, it is possible to provide a building having a structure formed by layering cement-based materials, which has high resistance to loads in cross directions. [Explanation of symbols]

[0070] 1 Sculpture 1A Wall 2. First additive manufacturing object 4 Second additive manufacturing object 6. Third additive manufacturing object 8. Fourth additive manufacturing object 10. 5th additive manufacturing object 11 6th additive manufacturing object 12 First Zigzag Section 12a Top surface of first zigzag section 12b Underside of the first zigzag section 13 One end of the first zigzag section 14 First one-side protrusion 15 Other end of first zigzag section 16 First other-side protrusion 18 notches 20 1st joint 20a Upper surface of the first joint 20b Lower surface of the first joint 21 1st space 22 First joint on the other end side 22a Upper surface of the first joint on the other end side 22b Bottom surface of the first joint on the other end side 23 First space on the other end side 24. Second Zigzag Section 24a Top surface of the second zigzag section 24b Lower surface of the second zigzag section 25 One end of the second zigzag section 26 Second one-sided projection 27 Other end of second zigzag section 28 second other-side protrusion 30 Notches 32 Second joint 32a Upper surface of the second joint 32b Lower surface of the second joint 33 Second space 34 Second joint on other end side 34a Upper surface of the second joint portion on the other end side 34b: Underside of the second joint on the other end 35 Second space on the other end side 40 First gap 42 Second Gap 61 Third plate part 62 Third joint 66 4th plate part 67 4th joint 71 Third space 72 4th space 75 First liner section 76 Curved section 77 Second liner section 80 First end portion additive manufacturing object 81 First end plate section 82 First end joint 84 first opposite end joint 90 Additive manufacturing object for second end 91 second end plate 92 Second end joint 94 Second opposite end joint 100 Additive Manufacturing Machine 102 nozzle 102a aperture 104 Moving mechanism 106 Supply Pump 108 Control device D1 Vertical direction D2 Length direction D3 Width direction L1 First virtual line L2 Second virtual line M Cement-based materials

Claims

1. A first layered object and a second layered object formed by layering cement-based materials are arranged adjacent to each other in a layering direction, The first additive manufactured product includes a first zigzag portion having a zigzag shape formed by the arrangement of a first one-sided projection that protrudes in one direction intersecting the stacking direction and a first other-sided projection that protrudes in the other direction opposite to the one direction intersecting the stacking direction. The second additive manufacturing product includes a second zigzag portion having a zigzag shape formed by the arrangement of a second one-sided projection protruding in one of the intersecting directions and a second other-sided projection protruding in the other of the intersecting directions. If the straight line passing through one end and the other end of the first zigzag portion is defined as the first imaginary line, then the first one-sided projection is the portion of the first zigzag portion on one side in the direction of intersection with respect to the first imaginary line, and the first other-sided projection is the portion of the first zigzag portion on the other side in the direction of intersection with respect to the first imaginary line. If the straight line passing through one end and the other end of the second zigzag section is defined as the second imaginary line, then the second one-sided projection is the portion of the second zigzag section on the other side in the direction of intersection with respect to the second imaginary line, and the second other-sided projection is the portion of the second zigzag section on the other side in the direction of intersection with respect to the second imaginary line. The first one-sided protrusion and the second other-sided protrusion are adjacent to each other in the stacking direction, and the first other-sided protrusion and the second one-sided protrusion are adjacent to each other in the stacking direction. Sculpture.

2. When viewed from the stacking direction, a first gap is formed by being surrounded by the first one-sided protrusion and the second other-sided protrusion, and a second gap is formed by being surrounded by the first other-sided protrusion and the second one-sided protrusion. The molded object according to claim 1.

3. At least one of the first one-sided protrusion, the first other-sided protrusion, the second one-sided protrusion, and the second other-sided protrusion has a curved shape such that its outer shape changes smoothly when viewed from the stacking direction. The molded object according to claim 1 or 2.

4. a notch into which a part of the second zigzag portion is fitted is formed on a surface of the first zigzag portion facing the second layered object; The molded object according to claim 1 or 2.

5. a third layered object formed by layering cement-based materials, the third layered object being disposed adjacent to the first layered object along the intersecting direction; a fourth layered object formed by layering cement-based materials, the fourth layered object being disposed adjacent to the second layered object along the intersecting direction and being disposed adjacent to the third layered object in the layering direction; The first additively fabricated object includes a first joint portion which is integrally fabricated with the first zigzag portion and connected to one end of the first zigzag portion. The second additively fabricated object includes a second joint portion which is integrally fabricated with the second zigzag portion and connected to one end of the second zigzag portion. The third laminated product includes a plate-shaped third plate portion and a third joint portion integrally formed with the third plate portion at one end of the third plate portion. The fourth laminated product includes a plate-shaped fourth plate portion and a fourth joint portion integrally formed with the fourth plate portion at one end of the fourth plate portion. In the stacking direction, The first joint, the third joint, the second joint, and the fourth joint or The first joint, the third joint, the fourth joint, and the second joint or the third joint portion, the first joint portion, the second joint portion, and the fourth joint portion or The third joint portion, the first joint portion, the fourth joint portion, and the second joint portion are arranged in any order. The molded object according to claim 1 or 2.

6. It further comprises an end-piece laminated structure formed by layering cement-based materials, the end portion layered object includes a plate-shaped end portion plate portion and an end portion joint portion integrally formed with the end portion plate portion at one end of the end portion plate portion, The aforementioned laminated end portion has a non-formed joint portion for the opposite end at the other end of the end plate portion. The molded object according to claim 1 or 2.

7. A building comprising the structure described in claim 1 or 2.

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