Manufacturing method for structure

Abstract

To provide a manufacturing method for a structure, which is capable of manufacturing the structure suited to various uses.SOLUTION: A manufacturing method for a structure includes: skeleton wall count determination step S1 in which the number of walls of skeleton 110, which is manufactured by stacking concrete, mortar, or ceramic material output from a header of a 3D printer in an upward direction based on digital data, is determined to be one or more depending on the intended use of 3D-printed structures 100, 200 and 300, etc.; skeleton manufacturing step S2 in which the skeletons at least for the determined number of walls required for the structure are manufactured; and skeleton assembly step S3 in which the manufactured skeletons are assembled at a predetermined location to create a structure of a desired shape.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for manufacturing a structure. [Background technology]

[0002] Conventional buildings, particularly houses (dwellings), are manufactured by construction companies using their own 3D printers (see, for example, Patent Document 1). Conventional 3D printers manufacture houses by vertically stacking materials (e.g., concrete) output from the header of a company's own 3D printer at the construction site. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-128073 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional technologies including the technology of Patent Document 1, manufacturing using 3D printers is limited to buildings (houses), and therefore, they have not been offered as a manufacturing method for structures suitable for various uses, such as disaster prevention and explosion prevention.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide a method for manufacturing a structure that is capable of manufacturing structures suitable for a variety of uses. [Means for solving the problem]

[0006] In order to achieve the above object, a method for manufacturing a structure according to one aspect of the present invention includes the steps of: a skeleton wall number determination step for determining the number of walls of a skeleton to be manufactured by stacking concrete, mortar, or ceramic material output from a header of a 3D printer in an upward direction based on digital data to one or more walls depending on the purpose of the structure; a skeleton manufacturing step of manufacturing at least as many skeletons as necessary for the structure, each of which has the determined number of walls; a body assembly step of assembling the manufactured bodies at a predetermined location to form the structure having a desired shape; Includes: [Effects of the Invention]

[0007] According to the present invention, structures suitable for a variety of uses can be manufactured. [Brief explanation of the drawings]

[0008] [Figure 1] 1A to 1C are diagrams illustrating an embodiment of a method for manufacturing a structure according to the present invention. [Figure 2] 2 is a diagram illustrating the skeleton wall number determination step and skeleton manufacturing step in FIG. 1. FIG. [Figure 3] 3 is a diagram illustrating an example of a configuration of an information processing system including the center server of FIG. 2. FIG. [Figure 4] FIG. 4 is a block diagram showing an example of a hardware configuration of a center server in the information processing system shown in FIG. 3. [Figure 5] 5 is a functional block diagram showing an example of a functional configuration of the center server of FIG. 4 in the information processing system of FIG. 3. [Figure 6] 4 is a diagram showing an example of order information being input via a display screen displayed on a user terminal in the information processing system of FIG. 3. FIG. [Figure 7] FIG. 7 is a diagram showing an example of a flow for manufacturing a skeleton with the number of walls according to the intended use of the structure, based on order information input via the display screen of FIG. 6. [Figure 8] FIG. 2 is a diagram showing the production of a body using a 3D printer (printing the number of walls according to the purpose of the structure) in the body production step of FIG. 1. [Figure 9] This is a diagram showing an example of a skeleton with four walls according to the purpose of the structure. [Figure 10] FIG. 10 is an enlarged view of a part of the frame of FIG. 9. [Figure 11] This is a diagram showing an example of a skeleton with three walls according to the purpose of the structure. [Figure 12] 2 is a diagram showing an example of manufacturing (printing) an angled skeleton (for example, a roof) in the skeleton manufacturing step of FIG. 1. FIG. [Figure 13] 2A and 2B are diagrams showing the steps of manufacturing the body of FIG. 1, in which (a) is a diagram showing the header of a 3D printer equipped with a nozzle for material output and a nozzle for painting, (b) is a diagram showing the material mixed with paint, and (c) is a diagram showing immersion of the manufactured body in a pool tank of paint. [Figure 14] FIG. 1 is a diagram showing a first example of a 3D printed structure (shelter) buried in the ground. [Figure 15] FIG. 10 is a diagram showing a second example of a 3D printed structure (shelter) buried in the ground. [Figure 16] FIG. 10 is a diagram showing an example of repairing a damaged body in a 3D printed structure. [Figure 17] FIG. 1 is a diagram showing an example of the arrangement of a 3D printer structure. [Figure 18] FIG. 10 is a diagram showing an example of a case where a 3D printed structure is used as an obstacle. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating an embodiment of the method for manufacturing a structure according to the present invention.

[0010] In Figure 1, structures manufactured by the 3D printing additive manufacturing method are referred to as "3D printed structures." Examples of such 3D printed structures include one or more 3D printed structures 100 (see Figure 1(a)) placed on the ground G, one or more 3D printed structures 200 (see Figure 1(b)) that are partially or completely buried in the ground G, and multiple (including as many as ten or more or one hundred or more) 3D printed structures 300 (see Figure 1(c)) placed on the ground G.

[0011] The 3D printed structure 100 can be used in residential buildings, apartment complexes, public facilities, etc. It may also be used for disaster prevention or explosion prevention purposes. In this embodiment, the structure is used for disaster prevention or explosion prevention purposes, and the specific structure will be described later. If windows and other fixtures were added to the 3D printed structure 100 shown in Figure 1(a), it would look like an ordinary house. The appearance shown in Figure 1(a) for disaster prevention and explosion prevention purposes is one example.

[0012] The 3D printed structure 200 can be used as a shelter, for example. It can be used for home or public purposes, and is intended to be disaster prevention or explosion-proof. The specific layout and structure will be described later. The appearance shown in FIG. 1(b) is an example.

[0013] The 3D printed structure 300 can be used, for example, as an obstacle for a moving object traveling on the ground G. It can also be used as a barricade to prevent intrusion, or to prevent cars from entering a park, for example. The specific layout and structure will be described later. The appearance shown in FIG. 1(c) is an example.

[0014] The conventionally known 3D printing additive manufacturing method is a manufacturing method for producing the framework of a building (such as a house) by vertically stacking materials such as mortar output from the header of a 3D printer 3 (see Figures 2 and 8) described below based on digital data. In contrast, in this embodiment, the manufacturing method involves stacking concrete, mortar, or ceramic material output from the header of a 3D printer 3 (see Figures 2 and 8) in a predetermined direction (vertically, diagonally upward, etc.) based on digital data (including scan data described later) of the structure for the above-mentioned purpose, thereby manufacturing at least a portion of the structure for the above-mentioned purpose (here, the main body 110 described later).

[0015] A "3D printer" is a device that forms one layer by outputting material onto a predetermined surface parallel to the XY plane based on a 3D model (the digital data described above, referred to here as 3D structure data. The 3D structure data also includes data related to the skeleton 110, which will be described later) prepared in advance for manufacturing 3D printed structures 100, 200, 300, etc., and then moves the header in the approximate Z direction (approximately vertical direction) or diagonally upward to print the next layer by stacking it on top of the previous layer (3D printing additive manufacturing method). 3D printers are designated by the reference numeral 3 (see Figure 2). The 3D printer 3 may be a conventionally used one or a dedicated one installed in accordance with this embodiment. By using the 3D printer 3, it is possible to manufacture (print) 3D printed structures 100 and 200 having walls of an "egg-shaped sphere" as shown in Figures 1(a) and (b), and to manufacture (print) 3D printed structures 300 having walls of a "sloped plane" as shown in Figure 1(c).

[0016] The 3D printed structures 100, 200, and 300 are configured with a plurality of skeletons 110, which will be described later. The 3D printed structure 100 configured in this manner is manufactured through various steps including, for example, a skeleton wall number determination step S1, a skeleton manufacturing step S2, and a skeleton assembly step S3.

[0017] First, the above-mentioned step S1 of determining the number of walls in the structural body will be described. In the step S1 for determining the number of walls in the structure, the center server 1, which will be described later in FIG. 2, determines the number of walls of the structure 110 (see FIGS. 9 to 11), which is manufactured by stacking concrete, mortar, or ceramic material output from the header 5 (see FIG. 8) of the 3D printer 3 in an upward direction based on digital data, to be one or more walls depending on the purpose of the structure such as the 3D printer structures 100, 200, and 300.

[0018] Next, the above-mentioned body manufacturing step S2 will be briefly explained (details will be given later). In the skeleton manufacturing step S2, the skeleton 110 (see FIGS. 9 to 11) having the number of walls determined in the skeleton wall number determination step S1 is manufactured using the 3D printer 3 (see FIGS. 2 and 8).

[0019] Next, in the above-mentioned body assembly step S3, the body 110 (see Figures 9 to 11) manufactured in the body manufacturing step S2 is assembled at a predetermined location to form 3D printer structures 100, 200, and 300 of the desired shape (design), for example, as shown in Figure 1.

[0020] FIG. 2 is a diagram for explaining the skeleton wall number determination step and skeleton manufacturing step in FIG. First, before explaining the above-mentioned step S1 for determining the number of walls in the skeleton and step S2 for manufacturing the skeleton, a supplementary explanation will be given about the 3D printer 3. The 3D printer 3 (collectively referring to 3D printers 3-1 to 3-n (n is an integer value of 1 or greater)) has different data formats depending on, for example, the printer manufacturer or printer type. In other words, the form of the digital data is different. For this reason, the center server 1, which will be described later, is provided with a function that enables conversion of the format of digital data to match the type of 3D printer 3 (output 3D printer) used.

[0021] Below, among the 3D printed structures 100, 200, and 300, the step S1 of determining the number of walls in the skeleton and the step S2 of manufacturing the skeleton will be described with reference to the 3D printed structure 100. An information processing system for manufacturing a 3D printer structure 100, specifically an information processing system including processing related to the manufacturing of the main body 110 (see Figure 3), can manufacture the main body 110 by controlling the execution of the main body wall number determination step S1 and the main body manufacturing step S2, which follow the following flow.

[0022] First, the user operates the user terminal 4 to input order information, and the input order information is transmitted from the user terminal 4 to the center server 1. The order information includes the conditions desired by the user, that is, the user conditions (specific examples of the user conditions will be described later, but they include information related to the use of the 3D printed structure 100).

[0023] Next, the center server 1 receives the order information sent from the user terminal 4. The center server 1 determines the decision factors for determining the 3D printer 3 that will manufacture at least a part of the 3D printed structure 100 based on the user conditions included in the order information. Furthermore, the center server 1 determines the number of walls of the skeleton 110 (see FIGS. 9 to 11) to be one or more based on the use of the 3D printed structure 100 included in the user conditions.

[0024] In this embodiment, if the purpose of the 3D printer structure 100 placed on the ground G is disaster prevention, the number of walls of the main body 110 is determined to be three or more, and if it is explosion-proof, the number of walls is determined to be four or more (if it is an ordinary house that is not disaster prevention or explosion-proof, for example, the number of walls of the main body 110 is determined to be two or three. The number of walls of the 3D printer structures 200 and 300 will be described later). In this embodiment, the number of walls of the skeleton 110 is determined based on the purpose of the 3D printed structure 100, as well as user conditions such as the budget and location, which will be described later. For example, the optimal number of walls is determined using an AI model (not shown) or the like (the number of walls may be determined so as not to exceed the budget, or, for example, the number of walls may be determined to be 4 or 5 instead of 3 when the purpose is disaster prevention in an area with active volcanic activity).

[0025] After the above-mentioned decision factors have been determined, the center server 1 extracts one or more suitable candidates for use from among multiple pre-registered 3D printers 3 (registered 3D printers) based on the determined decision factors. In addition, if the center server 1 is unable to extract a candidate 3D printer 3 (if it is unable to extract a candidate), a change request to change the user conditions is generated, and this generated change request is sent to the user terminal 4.

[0026] After one or more suitable candidates for use are extracted from among multiple 3D printers 3, the center server 1 determines the 3D printer 3 (output 3D printer) to be used to manufacture the body 110 from among the one or more extracted candidates. Once the 3D printer 3 is determined, the center server 1 converts the 3D structure data (digital data) to match the format of the 3D printer 3 that has been determined to be used. Specifically, the format of the 3D structure data is converted by a slicer for the 3D printer 3 into a digital data format that can be handled by the 3D printer 3.

[0027] After the data is converted into a format that can be handled by the 3D printer 3 (output 3D printer) used to manufacture the body 110, the center server 1 sends the 3D structure data to the print server 2 that manages the 3D printer 3. The print server 2 that manages the 3D printer 3 receives the 3D structure data sent from the center server 1.

[0028] After receiving the 3D structure data, the print server 2 that manages the 3D printer 3 (output 3D printer) transmits the 3D structure data to the 3D printer 3 that is used to manufacture the skeleton 110. After receiving the 3D structure data, the 3D printer 3 (output 3D printer) starts manufacturing the body 110.

[0029] One or more bodies 110 that make up the 3D printed structure 100 are manufactured by the information processing system according to the above-described flow. In the body manufacturing step S2, one or more bodies 110 that make up the 3D printed structure 100 are manufactured using a 3D printer 3, which can contribute to shortening the construction period and reducing costs compared to, for example, building a typical house. Furthermore, in manufacturing the body 110, the number of walls of the body 110 is determined in the body wall number determination step S1 before manufacturing proceeds, so that a body 110 can be manufactured that is suited to the intended use of the 3D printer structure 100.

[0030] Furthermore, according to the information processing system, for example, first, multiple 3D printers 3 both domestically and internationally, including those owned by other companies, are registered in advance, and then the 3D printer 3 to be used to manufacture the body 110 is selected from among them, and 3D structure data is sent and received.In this case, for example, an administrator of the information processing system, or even if the company does not increase the number of 3D printers it owns (or even if the company does not own any 3D printers 3), can manufacture a large number of 3D printed structures 100 tailored to the purpose in various locations in response to user orders. In other words, by using the services provided by adopting the information processing system described above, a company can, for example, increase the number of 3D printer structures 100, 200, and 300, etc., produced and promote their widespread use, with the desired shape (design) tailored to the application, as shown in Figure 1, by using a method similar to remote control, without having to increase the number of 3D printers it owns.

[0031] Next, the configuration of the above-mentioned information processing system will be described with reference to FIG. FIG. 3 is a diagram illustrating an example of the configuration of an information processing system including the center server of FIG.

[0032] The information processing system shown in FIG. 3 is configured to include a center server 1, a print server 2, a 3D printer 3, and a user terminal 4. The center server 1, the print server 2, and the user terminal 4 are connected to each other via a predetermined network N such as the Internet. The 3D printer 3 is directly connected to the corresponding print server 2 (this is an example, and the 3D printer 3 may be connected via the above-mentioned predetermined network N or another network).

[0033] The center server 1 is, for example, an information processing device managed by an administrator of the information processing system. The center server 1 executes various processes while communicating with the print server 2 and the user terminal 4 as needed.

[0034] The print server 2 is managed by, for example, a printer manager who manages the 3D printers 3 at various locations, or by, for example, an administrator of an information processing system. The print server 2 is an information processing device for controlling the 3D printers 3. The print server 2 communicates with the center server 1 and the 3D printer 3 as needed and executes various processes to realize this service. It is assumed here that there are a plurality of print servers 2, and they are designated by the reference numerals 2-1 to 2-n (n is an integer value of 1 or more). When there is no need to distinguish between them, they will be referred to as print servers 2.

[0035] As explained in FIG. 2, the 3D printer 3 is a device that forms one layer by outputting material onto a specific surface parallel to the XY plane based on a pre-prepared 3D model or scan data described later, in order to manufacture 3D printer structures 100, 200, 300, etc. tailored to the application (to manufacture one or more bodies 100), and then moves the header in approximately the Z direction (approximately vertical direction) or diagonally upward to print the next layer by stacking it on top of the previous layer (this will be explained later with reference to FIG. 8). There is one or more 3D printers 3 for each of the print servers 2-1 to 2-n, and for example, the print server 2-1 is designated by the reference numerals 3-1-1 to 3-1-m (m is an integer value of 1 or more). Also, for example, the print servers 2-n are designated by the reference numerals 3-n-1 to 3-1-p (p is an integer value of 1 or more) (when it is not necessary to distinguish between them, they will be referred to as 3D printers 3 as described above).

[0036] The user terminal 4 is an information processing device that is managed and operated by a user (not shown). The user terminal 4 is configured as a personal computer, a tablet, a smartphone, or the like. Since there are multiple users, there are multiple user terminals 4. Here, they are designated by the reference numerals 4-1 to 4-k (k is an integer value of 1 or greater), and when there is no need to distinguish between them, they will be referred to as user terminals 4.

[0037] Next, an example of the hardware configuration of the center server 1 in the information processing system shown in FIG. 3 will be described with reference to FIG. FIG. 4 is a block diagram showing an example of a hardware configuration of a center server in the information processing system shown in FIG.

[0038] The center server 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a bus 14, an input / output interface 15, an input unit 16, an output unit 17, a memory unit 18, a communication unit 19, and a drive 20.

[0039] The CPU 11 executes various processes according to a program recorded in the ROM 12 or a program loaded from the storage unit 18 into the RAM 13 . The RAM 13 also stores data and the like necessary for the CPU 11 to execute various processes.

[0040] The CPU 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output interface 15 is also connected to this bus 14. An input unit 16, an output unit 17, a storage unit 18, a communication unit 19, and a drive 20 are connected to the input / output interface 15.

[0041] The input unit 16 is configured with, for example, a keyboard, a touch panel, etc., and accepts input of various information. The output unit 17 is configured with a display such as a liquid crystal display, a speaker, etc., and outputs various information as images and sounds. The storage unit 18 is configured with a DRAM (Dynamic Random Access Memory) or the like, and stores various data. The communication unit 19 communicates with other devices (for example, the print server 2 and the user terminal 4 in FIG. 2) via a network N including the Internet.

[0042] Removable media 30, such as a magnetic disk, optical disk, magneto-optical disk, or semiconductor memory, is appropriately attached to the drive 20. A program read from the removable media 30 by the drive 20 is installed in the storage unit 18 as needed. Furthermore, the removable medium 30 can also store various data stored in the storage unit 18 in the same manner as the storage unit 18.

[0043] Although not shown, the print server 2 and the user terminal 4 in Fig. 3 can also have basically the same hardware configuration as that shown in Fig. 4. Therefore, a description of the hardware configuration of the print server 2 and the user terminal 4 of the information processing system will be omitted.

[0044] The center server 1 can execute various processes by cooperation of various hardware and software that constitute the information processing system of FIG. 3 including the center server 1 of FIG.

[0045] The functional configuration executed in the center server 1 that constitutes the information processing system will be described below. FIG. 5 is a functional block diagram showing an example of the functional configuration of the center server of FIG. 4 in the information processing system of FIG.

[0046] As shown in Figure 5, the CPU 11 of the center server 1 functions as a body wall number determination control unit 51, a body manufacturing control unit 52, a body assembly control unit 53, a recovery measures control unit 54, and a multiple structure placement control unit (not shown). Furthermore, the CPU 11 of the center server 1 also functions as a paint waterproofing control unit, a transportation consideration control unit, a transportation control unit, a foundation work control unit, and an other part manufacturing control unit, all of which are not shown. In addition, the storage unit 18 of the center server 1 is provided with an order information DB 71, a 3D printer information DB 72, a 3D structure data DB 73, a skeleton information DB 74, and a recovery information DB 75.

[0047] The skeleton wall number determination control unit 51 executes control to determine the number of walls of the skeleton 110 to be one or more depending on the use of the structure. Specifically, the body wall number determination control unit 51 determines the number of walls of the body 110 to be three or more if the purpose of the 3D printer structure 100 (see Figure 1(a)) placed on the ground G is disaster prevention, and determines the number of walls to be four or more if the purpose is explosion prevention. Furthermore, if the 3D printer structure 100 to be placed on the ground G is intended for use as a general residence, apartment building, public facility, etc. that is not disaster prevention or explosion proof, the number of walls in the main body 110 is determined to be 2 or 3 (the preferred number of walls is 2 or 3, and does not exclude 1 or 4 or more). Furthermore, if the use of the 3D printed structure 100 placed on the ground G is, for example, temporary housing or a limited-time event space, the number of walls of the skeleton 110 is determined to be one or two. Regarding the "number" of walls of the skeleton 110, which parts are counted will be described later with reference to FIGS.

[0048] In addition, the body wall number determination control unit 51 determines the number of walls of the body 110 to be 1 or more when the 3D printer structure 200 (see FIG. 1(b)) that is partially or completely buried in the ground G is used as a disaster prevention or explosion-proof shelter, or, for example, an ordinary house, warehouse, or storage facility. Note that since the 3D printer structure 200 is partially or completely buried in the ground G, there are cases where the number of walls of the buried portion is simply determined to be 1 without increasing it.

[0049] Furthermore, when the purpose of multiple (including 10 or more or 100 or more) 3D printer structures 300 (see FIG. 1(c)) placed on the ground G is to serve as obstacles or the like, the body wall number determination control unit 51 determines the number of walls of the body 110 to be 1 or more. For example, if the obstacle is intended to prevent cars from entering a park, the number of walls is simply determined to be 1. Also, as an extreme example, if the obstacle is intended to serve as a barricade to prevent the intrusion of moving objects such as tanks, the number of walls is determined to be not just 1, but 2 or 3, etc. (i.e., 1 or more).

[0050] The skeleton wall number determination control unit 51 utilizes information stored in the skeleton information DB 74 when determining the number of walls of the skeleton 110 according to the use of the structure. Information on the number of walls of the skeleton 110 according to the purpose of the structure is stored in advance in the skeleton information DB 74. The number of walls determined by the skeleton wall number determination control unit 51 and the purpose of the structure are stored in the skeleton information DB 74, for example, in association with each other. Note that information may be stored to build an AI model or the like, which may contribute to determining the optimal number of walls.

[0051] The structural wall number determination control unit 51 executes control so that the number of walls is determined taking into consideration not only the above-mentioned uses but also user conditions, such as budget and location, which will be described later.

[0052] By functioning the skeleton wall number determination control unit 51 as described above, the number of walls of the skeleton 110 can be determined depending on the use of the structure. Furthermore, the function of the body wall number determination control unit 51 makes it possible to determine and propose the number of walls that will not exceed the budget, as well as the purpose of the structure, and to determine the optimal number of walls taking into consideration the user conditions and the external environment, such as determining the number of walls to be 4 or 5 instead of 3 for the purpose of disaster prevention in areas with active volcanic activity.

[0053] The body manufacturing control unit 52 shown in Figure 5 executes control to manufacture one or more bodies 110 that constitute the 3D printer structures 100, 200, 300, etc. using concrete, mortar, or ceramic material output from the header 5 (see Figure 8) of the 3D printer 3 based on the above-mentioned digital data. In addition, the body manufacturing control unit 52 executes control to manufacture the body 110 having the number of walls determined by the function of the body wall number determination control unit 51 described above, at least in the quantity required for the 3D printer structures 100, 200, 300, etc. The reason why "at least as much as necessary" is because it takes into consideration the restoration of the body 110 at the damaged portion 120, which will be described later with reference to FIG.

[0054] When executing control for manufacturing the body 110, the body manufacturing control unit 52 functions as an order information acquisition unit, a decision factor determination unit, a candidate extraction unit, a 3D printer determination unit, a digital data transmission control unit, a digital data format conversion unit, and a user condition change request unit, although not specifically shown.

[0055] The above-mentioned order information acquisition unit in the body manufacturing control unit 52 acquires order information (such as order information entered into the display screen shown in Figure 6) from the user's user terminal 4, which is used by the user to order the manufacture of a structure (such as the 3D printer structures 100, 200, and 300 in Figure 1). Here, the order information includes at least the user conditions desired by the user. The user conditions include the budget, delivery date, the location where the structure will be placed (for example, the construction site shown in FIG. 7), and the purpose of the structure. In this embodiment, the conditions include the selection of the design of the structure in relation to the purpose of the structure. The order information acquired by the order information acquisition unit is stored in the order information DB 71.

[0056] Furthermore, the order information acquisition unit in the body manufacturing control unit 52 acquires, from the user terminal 4, order information including new user conditions as new user conditions specified by the user who has received the change request, which will be described later. The order information including the above-mentioned new user conditions (described later) is stored in the order information DB 71, for example.

[0057] The above-mentioned decision factor determination unit in the body manufacturing control unit 52 determines decision factors (described later) for determining the 3D printer 3 (output 3D printer) that will manufacture at least a part of the structure (body 110, etc.) based on the user conditions included in the order information. It should be noted that with regard to the above-mentioned phrase "manufacturing at least a part (such as the body 110)," the place where the manufacturing takes place refers to the place where the 3D printer 3 is installed.

[0058] Information about the 3D printer 3, i.e., various information such as the manufacturer, type, installation location, operating status, etc., is assumed to be stored in advance in the 3D printer information DB72 (the 3D printer 3 as registered information stored in the 3D printer information DB72 corresponds to the "registered 3D printer" described below). The 3D printer information DB 72 also stores information (such as transportation costs and transportation methods) necessary for transporting the above-mentioned part manufactured by the 3D printer 3 (output 3D printer).

[0059] In addition to the above, the judgment factor determination unit determines the above-mentioned judgment factors, such as the budget, delivery date, location where the structure will be placed, and the purpose and design of the structure, based on the user conditions. The judgment factors include the budget, travel distance from the location, strength such as earthquake resistance, delivery date, and the type of 3D printer 3 that can construct a structure for the purpose and design.

[0060] The candidate extraction unit in the body manufacturing control unit 52 extracts one or more candidates from among the plurality of registered 3D printers previously registered in the 3D printer information DB 72, based on the above-mentioned determination factors. In addition, the candidate extraction unit re-determines the above-mentioned judgment factors based on the new user conditions (described later) included in the order information, and extracts one or more of the above-mentioned 3D printers 3 (registered 3D printers) based on the re-determined judgment factors.

[0061] The above-mentioned 3D printer determination unit in the body manufacturing control unit 52 determines one of the one or more registered 3D printers extracted as candidates as the output 3D printer (here, one is determined, but this is not limited to this).

[0062] The digital data transmission control unit in the body manufacturing control unit 52 controls the transmission of digital data, such as 3D structure data, to a control device (such as the print server 2 in Figure 2) that controls the output 3D printer (3D printer 3) based on the digital data. The digital data transmission control section also controls the transmission of digital data whose format has been converted by a digital data format conversion section (to be described later) to the control device. It should be noted that digital data such as 3D structure data is stored in advance in the 3D structure data DB 73, for example.

[0063] The above-mentioned digital data format conversion unit in the body manufacturing control unit 52 converts the format of digital data, such as 3D structure data, into a format that can be handled by the output 3D printer (3D printer 3) using a slicer for the output 3D printer.

[0064] The above-mentioned user condition change request unit in the body manufacturing control unit 52 executes control to send the above-mentioned user condition change request to the user terminal 4 when the above-mentioned candidate extraction unit determines that there are no registered 3D printers (3D printers 3) to be extracted as candidates.

[0065] The order information acquisition unit, judgment factor determination unit, candidate extraction unit, 3D printer determination unit, and digital data transmission control unit (not shown) in the above-described structure manufacturing control unit 52 each function, making it possible to manufacture using a 3D printer 3, which can contribute to shortening construction time and reducing costs compared to, for example, building a typical house.

[0066] In this embodiment, the above-mentioned order information acquisition unit, judgment factor determination unit, candidate extraction unit, 3D printer determination unit, and digital data transmission control unit each function, so that, for example, multiple 3D printers 3 located both domestically and internationally, including those owned by other companies, can be registered in advance, and the 3D printer 3 to be used to manufacture 3D printed structures 100, 200, 300, etc. can be determined from among them, and 3D structure data can be sent and received.This allows, for example, an information processing system administrator, etc., to manufacture a large number of 3D printed structures 100, 200, 300, etc. in various locations in response to user orders, without the company having to increase the number of 3D printers it owns (or even if the company does not own a 3D printer 3, for example).

[0067] In addition, in this embodiment, the digital data format conversion unit functions as described above, and the format of the digital data can be converted into a format that can be handled by the output 3D printer using a slicer for the output 3D printer. Therefore, for example, 3D printed structures 100, 200, 300, etc. can be manufactured regardless of the manufacturer or type of 3D printer 3. Furthermore, in this embodiment, when it is determined that there are no registered 3D printers to be extracted as candidates, the above-described user condition change request unit functions to execute control to send a request to change the user conditions to the user terminal 4. This allows the 3D printed structures 100, 200, 300, etc. to be manufactured based on the changed order information that includes new user conditions (described later).

[0068] A painting and waterproofing control unit (not shown) in the CPU 11 controls a predetermined robot to paint and waterproof one or more bodies 110 that are manufactured (or have been manufactured) under the control of the body manufacturing control unit 52 (the painting and waterproofing performed by a predetermined robot will be described later with reference to Figure 13). For painting and waterproofing by a predetermined robot, information stored in the order information DB 71 and the 3D structure data DB 73 is used. By functioning the painting and waterproofing control unit (not shown), a designated robot applies the painting and waterproofing, which reduces the involvement of craftsmen in the construction work, thereby contributing to shortening the construction period and reducing costs.

[0069] A transportation consideration control unit (not shown) in the CPU 11 controls the consideration process for reinforcement to ensure the strength to withstand the forces applied during transportation before transporting one or more bodies 110 manufactured under the control of the body manufacturing control unit 52. Furthermore, the transportation consideration control unit (not shown) also controls, for example, a processing robot in order to reflect the results of the consideration process related to the reinforcement described above in one or more of the skeletons 110. The functioning of the transportation consideration control unit (not shown) ensures that the equipment is strong enough to withstand the forces applied during transportation, preventing damage during transportation, etc. In other words, this eliminates the need for rework, which contributes to shortening the construction period and reducing costs.

[0070] A transport control unit (not shown) in the CPU 11 executes control to transport one or more bodies 110 that are strong enough to withstand the forces applied during transport to a predetermined location or its vicinity where the 3D printer structures 100, 200, 300, etc. will be placed. In this embodiment, the transport control unit (not shown) controls various robots (including cranes, etc.) used to pack the body 110 and load it onto a specified transport vehicle (truck, etc.), as well as controls the creation of a transport plan for the transport vehicle. The functioning of a transport control unit (not shown) can improve efficiency during transport, which can contribute to shortening the construction period and reducing costs.

[0071] The foundation construction control unit (not shown) in the CPU 11 executes control to manufacture at least the formwork using the 3D printer 3 for the foundation required as a base for assembling 3D printer structures 100, 200, 300, etc. from one or more frames 110. In this embodiment, the foundation work control unit (not shown) not only controls the manufacturing (printing) of formwork using the 3D printer 3 in the same way as the main body 110, but also controls robots that perform foundation work (e.g., concrete pouring robots, cranes, rebar binding robots, etc.) at designated locations where the 3D printed structures 100, 200, and 300, etc. are placed. The foundation work control unit (not shown) functions effectively when foundation work is required for the manufacture of 3D printer structures 100, 200, 300, etc. By functioning the foundation work control unit (not shown), foundation work that has previously been performed by craftsmen can be performed by robots, for example, which can ultimately contribute to shortening construction time and reducing costs.

[0072] An unillustrated other part manufacturing control unit in CPU 11 executes control to manufacture other parts (for example, fittings such as windows) other than one or more skeletons 110 using a 3D printer different from 3D printer 3. By functioning the other part manufacturing control unit (not shown), the manufacturing of fittings that has previously been done by craftsmen can be done by robots, for example, which will ultimately contribute to shortening construction periods and reducing costs.

[0073] The body assembly control unit 53 shown in Figure 5 performs control to assemble one or more bodies 110 at the above-mentioned predetermined locations (predetermined locations where 3D printer structures 100, 200, 300, etc. are placed) to create a structure of the desired shape (design). In this embodiment, the skeleton assembly control unit 53 controls robots (including cranes, concrete pump trucks, etc.) that assemble one or more skeletons 110. The skeleton assembly control unit 53 also executes control for incorporating prefabricated interior parts into the structure when assembling one or more skeletons 110. With regard to the interior described above, the frame assembly control unit 53 is equipped with an interior assembly control unit (not shown) and executes control for assembling the interior. This interior assembly control unit functions when assembling the interior in, for example, an interior assembly factory, which is different from the above-mentioned predetermined location (the predetermined location where the 3D printer structures 100, 200, 300, etc. are placed). The assembled interior is transported, for example, under the control of the above-mentioned transport control unit (not shown). By functioning the frame assembly control unit 53, which includes an interior assembly control unit (not shown), assembly work that has previously been performed by craftsmen can now be performed by robots, for example, which will ultimately contribute to shortening the construction period and reducing costs.

[0074] Here, an example of the flow of manufacturing the 3D printed structures 100, 200, 300, etc. executed by the above-mentioned center server 1, etc. will be described. Although the flowchart is not shown, for the sake of convenience, the following description will use the step numbers of steps S11 to S22 (in the following description, steps S11 to S22 will be preceded by "not shown" except for some steps shown in FIG. 7).

[0075] In step S11, the user terminal 4 transmits to the center server 1 the order information input by the user. After step S11 is executed, the process proceeds to step S12.

[0076] In step S12, the center server 1 receives the order information sent from the user terminal 4. At this time, in the center server 1, the order information acquisition unit in the body manufacturing control unit 52 functions. After step S12 is executed, the process proceeds to step S13.

[0077] In step S13, the center server 1 determines, based on the user conditions included in the order information, judgment factors for determining the 3D printer 3 that will manufacture at least a portion (one or more bodies 110) of the 3D printed structures 100, 200, 300, etc. Also, based on the user conditions, the number of walls of the body 110 according to the purpose of the structure is determined. At this time, in the center server 1, the judgment factor determination unit in the skeleton manufacturing control unit 52 and the skeleton wall number determination control unit 51 each function. After step S13 is executed, the process proceeds to step S14.

[0078] In step S14, the center server 1 extracts one or more candidates suitable for use from among a plurality of pre-registered 3D printers 3 (registered 3D printers) based on the determined decision factors. At this time, in the center server 1, the candidate extraction unit in the body manufacturing control unit 52 functions. After step S14 is executed, the process proceeds to step S15.

[0079] In step S15, the center server 1 determines whether or not one or more candidates suitable for use have been extracted from among the multiple 3D printers 3 (registered 3D printers) that have been registered in advance. This determination is made by the candidate extraction unit in the body manufacturing control unit 52 continuing to function. If the center server 1 is unable to extract a candidate 3D printer 3 ("NO" in step S15), it proceeds to step S16, and if it is able to extract a candidate 3D printer 3 ("YES" in step S15), it proceeds to step S17.

[0080] In step S16, the center server 1 generates a change request to change the user conditions because it is unable to extract candidate 3D printers 3, and transmits this to the user terminal 4. At this time, in the center server 1, the user condition change request unit in the body manufacturing control unit 52 functions. After step S16 is executed, the process proceeds to step S11.

[0081] In step S17, having extracted the candidate 3D printers 3, the center server 1 determines from the candidate 3D printers 3 the 3D printer 3 (output 3D printer) to be used to manufacture the body 110. At this time, in the center server 1, the 3D printer determination unit in the body manufacturing control unit 52 functions. After step S17 is executed, the process proceeds to step S18.

[0082] In step S18, the center server 1 converts the format of the 3D structure data (digital data) that matches the format of the 3D printer 3 that will be used after determining the 3D printer 3 (output 3D printer) into a digital data format that can be handled by the 3D printer 3 using a slicer for the 3D printer 3. At this time, in the center server 1, the digital data format conversion section in the body manufacturing control section 52 functions. After step S18 is executed, the process proceeds to step S19.

[0083] In step S19, the center server 1 transmits the 3D structure data converted into a digital data format that can be handled by the 3D printer 3 to the print server 2 that manages the 3D printer 3 (output 3D printer). At this time, in the center server 1, the digital data transmission control section in the body manufacturing control section 52 functions. After step S19 is executed, the process proceeds to step S20.

[0084] In step S20, the print server 2 receives the 3D structure data transmitted from the center server 1. After step S20 is executed, the process proceeds to step S21.

[0085] In step S21, the print server 2 transmits the 3D structure data to the 3D printer 3 (output 3D printer) used to manufacture one or more bodies 110. After step S21 is executed, the process proceeds to step S22.

[0086] In step S22, the 3D printer 3 (output 3D printer) manufactures one or more bodies 110 that make up the 3D printer structures 100, 200, 300, etc., based on the received 3D structure data, i.e., bodies 110 with the number of walls appropriate for the purpose.

[0087] The restoration control unit 54 in the CPU 11 shown in FIG. 5 executes control to manufacture and restore the damaged body 110 based on scan data (digital data) described later, for example. By functioning the restoration measure control unit 54, the damaged body 110 of the structure can be restored in a short time.

[0088] Furthermore, a multiple structure placement control unit (not shown) in the CPU 11 shown in FIG. 5 executes control to ensure that the multiple 3D printer structures 100 are spaced apart by a predetermined distance, for example. By functioning a multiple structure placement control unit (not shown), structures can be manufactured so that they are placed at a predetermined distance from each other, and as a result, for example, it is possible to prevent an effect occurring in one of adjacent structures from affecting the other.

[0089] An example of inputting order information via a display screen displayed on the user terminal 4 will be described with reference to FIG. FIG. 6 is a diagram showing an example of inputting order information via a display screen displayed on a user terminal in the information processing system of FIG.

[0090] The display screen (user screen YG) of the user terminal 4 displays, for example, a budget input field, an input field for the location where the structure will be placed (for example, the construction location of the structure shown in Figure 7), a delivery date input field, an input field for the structure's use (including a design selection field not shown), and other input fields (these are just examples and are not limited to these). The structure use input field may be, for example, the field shown in the figure where one can select general building use A, disaster prevention and explosion-proof use B on the ground, disaster prevention and explosion-proof use C buried in the ground, or obstacle use D. Such a display allows the user to input the user conditions desired by the user into the various input fields and selection fields described above. Then, the user terminal 4 can generate order information that includes at least the user conditions, and can transmit this to the center server 1. If there is a request to change the above-mentioned user conditions, the user can input the new conditions again and transmit to the center server 1 order information that includes at least the new user conditions.

[0091] The center server 1 determines the determination factor to be "budget" based on the "budget" of the user conditions included in the acquired order information. Furthermore, based on the "location" of the user conditions, the judgment factors are determined to be "travel distance from the construction site" and "strength (earthquake resistance strength, material strength, compressive strength)." Furthermore, the determination element is determined to be "delivery date" based on "delivery date" in the user conditions. In addition, based on the "purpose (including design)" of the user conditions, the decision factor is determined to be "3D printer that can be constructed." Other than these, the judgment factor is determined to be "other factors such as thermal insulation and fire resistance."

[0092] An example based on the above order information will be described with reference to FIG. FIG. 7 is a diagram showing an example of a flow for manufacturing a skeleton with the number of walls according to the intended use of the structure, based on the order information input on the display screen of FIG.

[0093] The example in Figure 7 is an example in which order information CJ-1, which is a user request to "construct a 3D printed structure 100 for disaster prevention and explosion-proof application B (hereinafter referred to as application B) on the ground at a designated location in X prefecture within one week with a budget of 3 million yen," is received by the center server 1. The center server 1 extracts one or more candidates for the 3D printer 3 based on the order information CJ-1 and the determination factors (for example, step S14 described above).

[0094] In this case, the factors to consider are "transportation distance from the construction site, there are no 3D printers 3 that meet the requirements in X prefecture, so the transportation costs are re-quoted (+ xx million yen increase)," "delivery date (operation status of the 3D printer)," etc. The above-mentioned "re-presentation" refers to an example in which the determination in step S15 (not shown) is "NO" and the process proceeds to step S16 (not shown). In this example, three candidates can be extracted for 3D printer 3. The first candidate, KP-1, is a 3D printer 3 located in X prefecture, and its operational status is such that there is a two-week waiting period for delivery. The second candidate, KP-2, is also a 3D printer 3 located in X prefecture, and is currently in an operational state where there is a one-month wait for delivery. The third candidate, KP-3, is a 3D printer 3 located in prefecture Y, not prefecture X, and is currently in an operational state where there is a one-week waiting period for delivery.

[0095] The center server 1 determines the 3D printer 3 of the candidate KP-3 as the output 3D printer from among the three candidates KP-1 to KP-3, with emphasis on delivery time, for example (for example, step S17 described above). Furthermore, in the center server 1, after the 3D printer 3 of candidate KP-3 is determined as the output 3D printer, the format of the 3D structure data (digital data) for application B is converted into a digital data format that can be handled by the 3D printer 3 by a slicer for the 3D printer 3 (for example, step S18 described above). The converted 3D structure data for use B is sent from the center server 1 to the print server 2 that manages the 3D printer 3 (output 3D printer), and then received (for example, steps S19 and S20 described above).

[0096] Although the above example is an example from within Japan, it can also be applied to foreign countries. In that case, simply read "X Prefecture" as "X Country" and "Y Prefecture" as "Y Country."

[0097] With reference to FIG. 8, the manufacturing (printing) of the body 110 using the 3D printer 3 will be described. FIG. 8 is a diagram showing the production of a skeleton using a 3D printer (printing the number of walls according to the purpose of the structure) in the skeleton production step of FIG.

[0098] A 3D printer 3 that performs additive manufacturing by printing is installed in a factory (not shown). The 3D printer 3 can temporarily store concrete, mortar, or ceramic material in a storage section by passing it through, for example, two hoses, and then output (discharge) it from the header 5. Although not particularly limited, for disaster prevention and explosion-proof structures, it is preferable to mix glass fiber with the above materials. This is because it improves tensile strength. Also, if it is to be disposed of, it can be returned to nature because it is glass (silica). (In the case of metal fibers, iron will rust, but in terms of durability, it is about 75 years. When disposed of, iron must be separated, but glass fiber does not rust, so separation is not necessary.)

[0099] The 3D printer 3 forms one layer by outputting material onto a specific surface parallel to the XY plane based on the 3D structure data, and then moves the header 5 approximately in the Z direction (approximately vertical direction) or diagonally upward to print the next layer by stacking it on top of the previous layer. The 3D printer 3 can print a wall-like body 110 such as the 3D printer structures 100, 200, and 300 shown in FIG. 8 by stacking multiple layers in the Z direction (approximately the vertical direction).

[0100] The body 110 shown in FIG. 8 is configured to include an inner body 110a and an outer body 110b. The inner body 110a is manufactured to have a first wall, a second wall, and a plurality of ribs, and the outer body 110b is manufactured to have a third wall and a fourth wall. In the example shown in Figure 8, the body 110 is manufactured to have four walls (a specific example of a body with four walls will be described later with reference to Figures 9 and 10). As can be seen from the striped pattern (horizontal stripes) of the inner body 110a shown by solid lines in FIG. 8, after one layer is formed, the next layer is printed so as to be stacked on top of the layer.

[0101] The number of walls of the inner body 110a and the outer body 110b will be described with reference to FIGS. FIG. 9 is a diagram showing an example in which the number of walls in the skeleton is four according to the use of the structure. FIG. 10 is an enlarged view of a part of the frame of FIG. FIG. 11 is a diagram showing an example in which the number of walls in the skeleton is three according to the use of the structure.

[0102] First, an example in which the number of walls of the skeleton 110 is four will be described. Note that the skeleton 110 here is intended to be the one that constitutes the 3D printer structure 100.

[0103] The 3D printer structure 100 is configured with a plurality of bodies 110 as shown in FIG. 9, for example (although the appearances differ, the basic configuration is the same, so the bodies are all referred to by the symbol 110). 9 and 10 are each manufactured to have a four-wall structure by the 3D printer 3. The four-wall structure will be described below.

[0104] The body 110 is configured to include an inner body 110a and an outer body 110b, each of which has double walls. The inner body 110a has a first wall 110a-1 (first wall) that is located at the innermost part of the structure, a second wall 110a-2 (second wall) that is located outside the first wall 110a-1, a plurality of ribs 110a-3 that are arranged around a vertical axis in the upward direction (Z direction in Figure 1) and partially connect the first wall 110a-1 and the second wall 110a-2, and end walls 110a-4 that are arranged at both ends around the vertical axis.

[0105] It should be noted that the solid lines denoted by the reference numerals 110a-1, 110a-2, 110a-3, and 110a-4, as well as the reference numerals 110b-1, 110b-2, and 110b-3 described below, indicate the trajectory along which the header 5 of the 3D printer 3 moves as if in one stroke. The header 5 moves along this trajectory, and as it moves, the header 5 ejects a predetermined amount of material, thereby printing the actual first wall 110a-1, second wall 110a-2, multiple ribs 110a-3, end wall 110a-4, etc., to form one layer. Because the header 5 discharges a predetermined amount of material, it appears in the drawing that there is a gap between the first wall 110a-1 and the tips of each of the multiple ribs 110a-3, but in reality, the tips of each of the multiple ribs 110a-3 come into contact with the first wall 110a-1. Furthermore, at the location indicated by the symbol 110a-3, the header 5 moves in a U-shape (moves back and forth), so the U-turned material is lined up without any gaps, and as a result, each of the multiple ribs 110a-3 is formed in a portion that is thicker than the first wall 110a-1 and the second wall 110a-2. Since the tips of the multiple ribs 110a-3 each abut against the first wall 110a-1 and are formed in a thick portion, damage to the inner body 110a is unlikely to occur even if an external force is applied to the second wall 110a-2, for example. The inner body 110a has a plurality of ribs 110a-3, which function as strength-enhancing portions (reinforcement portions) and also as portions that improve impact resistance, earthquake resistance, and structural strength against, for example, an explosion.

[0106] The ribs 110a-3 form a plurality of spaces around a vertical axis in the upward direction (Z direction in FIG. 1). Of these spaces, for example, space 110a-5 can be filled with special mortar (an alternative to rebar or concrete), and space 110a-6 can be filled with rebar, thereby increasing strength (for example, to ensure strength that meets building standards). In addition to increasing strength, the spaces can also be used as spaces to fill with, for example, heat insulating material or sound absorbing material.

[0107] 10 can be designed to have increased strength, etc. In this embodiment, in order to ensure further strength, etc., for example, as an explosion prevention measure, an outer body 110b is provided outside the inner body 110a. The outer body 110b has a third wall 110b-1 (third wall) arranged outside the second wall 110a-2 of the inner body 110a, a fourth wall 110b-2 (fourth wall) arranged outside this third wall 110b-1, and end walls 110b-3 arranged at both ends around the above-mentioned vertical axis (it may further have a fifth wall, a sixth wall, etc. (not shown) outside the fourth wall 110b-2).

[0108] In the example shown in FIG. 10, the solid lines of symbols 110a-2 and 110b-1 are close to each other, and as a result, when the header 5 moves, the materials are discharged so that they are lined up without any gaps, and the second wall 110a-2 and the third wall 110b-1 are formed in thick portions (which can increase their strength). The third wall 110b-1 may be disposed so as to create a space (so as to form an air layer) between it and the second wall 110a-2.

[0109] The fourth wall 110b-2 of the outer body 110b is arranged so that a relatively large space is created between it and the third wall 110b-1 (so that an air layer is formed). The fourth wall 110b-2 is also formed so that there are no multiple ribs 110a-3 like the inner body 110a (this can prevent heat transfer from a heat bridge, for example, from hot air caused by a fire or a bomb. It can also prevent heat transfer from sunlight and heat radiation from the inside to the outside).

[0110] Although the above-described four-wall structure of the body 110 is an extreme example, it is effective as an explosion-proof measure against bullets and warheads. For example, if the thickness of each wall from the first wall 110a-1 of the inner body 110a to the fourth wall 110b-2 of the outer body 110b is secured to be about 10 cm, it is currently believed that there will be no impact on the inside of the structure. For example, the egg-shaped spherical 3D printed structure 100 shown in Figure 1(a) can be made to have an appearance that makes it easier to deflect an explosion, for example, compared to a structure with flat walls, and if a main body 110 with at least four walls is used, it can be provided as a structure with sufficient strength to be explosion-proof.

[0111] The example shown in Figure 10 is an extreme example of explosion protection against bullets and warheads. It can also be used to protect structures in places where hazardous materials are handled, such as chemical plants and oil plants. To further reduce the level of disaster prevention, a triple-wall structure such as the one shown in Figure 11 can be used as the skeleton 110. Note that the quadruple-wall structure is not the only explosion-proof structure. For example, in areas with active volcanic activity, the quadruple-wall structure may be preferable to the triple-wall structure described below for disaster prevention purposes.

[0112] In FIG. 11, the body 110 is configured to include an inner body 110a and an outer body 110c. The inner body 110a has the same configuration and structure as the inner body 110a of FIG. 10, and includes a first wall 110a-1, a second wall 110a-2, a plurality of ribs 110a-3, and an end wall 110a-4. The outer body 110c shown in Figure 11 has a third wall 110c-1 (third wall) arranged outside the second wall 110a-2 of the inner body 110a, and end walls 110c-2 arranged at both ends around the above-mentioned vertical axis (it may also have a fourth wall, a fifth wall, etc. (not shown) outside the third wall 110c-1). The third wall 110c-1 of the outer body 110c is disposed and formed so as to create a relatively large space (so as to form an air layer) between it and the second wall 110a-2 of the inner body 110a. Furthermore, the third wall 110c-1 is formed so as not to have multiple ribs 110a-3 like the inner body 110a (in this embodiment, multiple ribs are not present on the outermost wall, but if there is no need to prevent heat conduction, multiple ribs may be formed on the outermost wall).

[0113] 11, which has the above-described triple-wall structure, ensures that each wall is approximately 10 cm thick, as in the example of Fig. 10. However, if the wall thickness from the first wall 110a-1 of the inner body 110a to the third wall 110c-1 of the outer body 110c, i.e., the wall thickness of the body 110, is at least 30 cm, it is believed that the impact will not extend to the inside of the structure in terms of disaster prevention (the external force is halved by the third wall 110c-1 and can be stopped by the second wall 110a-2 and multiple ribs 110a-3, resulting in no impact).

[0114] In the examples shown in Figures 9 to 11, the inner body 110a and the outer body 110b, and the inner body 110a and the outer body 110c are described as being printed by the 3D printer 3 at the same location, but this is not limited to this. That is, the body 110 may consist of only the inner body 110a and the outer body 110b, and these may then be combined later to form a four-wall structure as shown in Figure 10, or the body 110 may consist of only the inner body 110a and the outer body 110c, and these may then be combined later to form a three-wall structure as shown in Figure 11.

[0115] The 3D printer 3 of this embodiment is capable of manufacturing (printing) a skeleton 110 that constitutes an egg-shaped spherical 3D printed structure 100. Such a 3D printer 3 also makes it possible to manufacture a skeleton 110 that requires an angle (overhang), for example, as shown in FIG. FIG. 12 is a diagram showing an example of manufacturing (printing) an angled skeleton (for example, a roof) in the skeleton manufacturing step of FIG.

[0116] The 3D printer 3 shown in Figure 12 can manufacture (print) a body 110 (for example, a dome-shaped roof) that requires the angle (overhang) shown in Figure 12 by, for example, mixing a hardening accelerator in the header 5 to accelerate the hardening of the material, outputting the material after mixing with this hardening accelerator from the header 5 and hardening it in, for example, 30 seconds, and by controlling the 3D printer 3 to stagger the layering of the material. In Figure 12, by controlling the 3D printer 3 and shifting the layers of material mixed with a hardening accelerator, it is possible to easily and quickly manufacture a structure 110 that requires an angle (overhang) of 45 degrees or more, such as a roof (which can contribute to shortening construction time and reducing costs).

[0117] Next, waterproofing and painting of the body 110 will be described with reference to FIG. FIG. 13 is a diagram showing the steps of manufacturing the body of FIG. 1, where (a) is a diagram showing the header of a 3D printer equipped with a nozzle for material output and a nozzle for painting, (b) is a diagram showing the material mixed with paint, and (c) is a diagram showing immersion of the manufactured body in a pool tank of paint.

[0118] The header 5 shown in Figure 13(a) is configured with a nozzle for outputting material and a nozzle for painting (or is configured with a nozzle for outputting material, a nozzle for painting, and a nozzle for spraying waterproof paint (not shown)). By employing such a header 5, painting and waterproofing can be carried out simultaneously with the manufacturing (printing) of the body 110, which can contribute to shortening the construction period and reducing costs.

[0119] 13(b) is filled with a material mixed with, for example, solid paint for the 3D printer 3. By using such a material, painting can be performed simultaneously with the manufacturing (printing) of the body 110, resulting in labor savings in the painting process. In other words, it can contribute to shortening the construction period and reducing costs. As shown in FIG. 13(c), the manufactured body 110 may be hung by a crane and immersed in a pool filled with paint, thereby applying the paint all at once.

[0120] FIG. 14 is a diagram showing a first example of a 3D printed structure (shelter) that is buried in the ground. In FIG. 14, a 3D printer structure (shelter) 200 buried in the ground G is configured with a plurality of bodies (reference numerals omitted). In this embodiment, the number of walls of the skeleton (reference numerals omitted) at the portion buried in the ground G is determined to be 1 or more (since it is buried, there may be cases where it is not necessary to incur the cost of increasing the number of walls, so the number of walls is set to 1 or more). In addition, the number of walls at the portion exposed from the ground G is determined to be 2 or more for disaster prevention measures, and 3 or more for explosion prevention measures (the number of walls at the exposed portion is one example; for example, if the following space can be secured, even if the portion exposed from the ground G is damaged by, for example, an explosion, it is unlikely to affect the evacuees H, so the number of walls may be determined to be 1).

[0121] 14, a space of 90 cm to 130 cm in height is secured below the ground G. In other words, the 3D printed structure (shelter) 200 is manufactured so as to be less susceptible to the effects of, for example, the above-mentioned blast. Furthermore, the 3D printed structure (shelter) 200 is manufactured so that the above-mentioned space is secured at approximately 1.3 m x 1.3 m = 1.69 m2, allowing five to six people to take refuge there. It goes without saying that a 3D printed structure (shelter) 200 larger than that shown in FIG. 14 may be manufactured so as to accommodate a larger number of evacuees H.

[0122] Although not specifically shown in Figure 14, the 3D printer structure (shelter) 200 is assumed to have an entrance and exit. An emergency exit may also be installed separately from the entrance and exit. Furthermore, as a measure against rainwater, the shelter may have a structure that prevents rainwater from entering and that can drain or collect rainwater if it does enter.

[0123] Although not limited to the 3D printer structure (shelter) 200, the information processing system of Figure 3 allows construction within 24 hours as an emergency response.

[0124] FIG. 15 is a diagram showing a second example of a 3D printed structure (shelter) that is buried in the ground. In FIG. 15, a 3D printer structure (shelter) 200 buried in the ground G is configured to include multiple bodies (reference numerals omitted) similar to the example in FIG. The 3D printer structure (shelter) 200 in Fig. 15 is partially exposed from a slope, for example, and is suitable for use as a shelter to avoid falling rocks from above. For example, the number of walls in the skeleton (reference numeral omitted) is set to one or more. The internal space is shown the same as in the example in Fig. 14, but this is not limited to this.

[0125] FIG. 16 is a diagram showing an example of repairing a damaged body of a 3D printed structure. In addition, in FIG. 16, the 3D printed structure 100 is used as an example for explanation, but the 3D printed structures 200 and 300 may also be used.

[0126] For example, in the case of a damaged area such as that shown in the left diagram of Fig. 16, specifically a damaged area 120 caused by a rock fall, a warhead, an explosion, or the like, by digitally scanning the damaged area 120, the information processing system of Fig. 3 can easily manufacture a skeleton (not shown) based on the digital scan data (digital data). Then, by installing the manufactured skeleton in the damaged area 120, it is possible to restore the area to its original state in a short time, as shown in the right diagram of Fig. 16. Regarding the restoration, the restoration control unit 54 described above functions.

[0127] FIG. 17 is a diagram showing an example of the arrangement of a 3D printer structure. In addition, in FIG. 17, the 3D printed structure 100 is taken as an example for explanation, but the 3D printed structure 200 or the like may also be used.

[0128] As shown in Figure 17, in an extreme example, when multiple 3D printer structures 100 are arranged, it is preferable to ensure a spacing of 10 m between structures in order to minimize the damage caused by bomb destruction (10 m spacing is just an example, and it can be longer, for example. The spacing should be set taking into account secondary damage caused by shrapnel at the time of destruction, etc.). The structure spacing is controlled by the above-mentioned structure multiple placement control unit (not shown).

[0129] FIG. 18 is a diagram showing an example of a case where the use of a 3D printed structure becomes an obstacle. The shape shown in Figure 18 is just one example, but multiple (including more than ten or even a hundred) 3D printer structures 300 placed on the ground G can function, for example, as obstacles to moving objects (an extreme example is a barricade to prevent the intrusion of military vehicles such as tanks). The arrangement state of the 3D printer structure 300 shown in FIG. 18 is not particularly limited, but is a regular arrangement state. Although not specifically shown, if a small number of 3D printed structures 300 are lined up, they can function as an obstacle to prevent cars from entering a park, for example. Regarding the placement of obstacles, the above-mentioned structure placement control unit (not shown) functions.

[0130] Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within the scope of achieving the object of the present invention are included in the present invention. In the above embodiment, a plurality of 3D printers 3 are managed by the print server 2, but this is not intended to be limiting.

[0131] Furthermore, in the above-described embodiment, one 3D printer 3 is determined as the output 3D printer, but this is not particularly limited to this. For example, a 3D printer 3 in prefecture X and a 3D printer 3 in prefecture Y may be determined as the output 3D printers, and the body 110 may be manufactured by division of labor. Furthermore, in the above-described embodiment, the 3D printed structure 100 is manufactured in, for example, prefecture X (see FIG. 7), but this is not limited to this, and multiple 3D printed structures 100 (such as 3D printed structures 200 and 300) may be manufactured simultaneously in, for example, multiple countries or multiple regions within a country. In the above embodiment (the example shown in FIG. 7), the manufacturing is carried out with a delivery time of within one week, but this is not limited to this. The information processing system shown in FIG. 3 allows construction within 24 hours not only in emergencies but also in normal times.

[0132] Furthermore, in the above-described embodiment (the example shown in Figures 9 to 11), the inner body 110a and the outer body 110b, and the inner body 110a and the outer body 110c are described as being printed by the 3D printer 3 at the same location, but this is not limited to this. That is, the skeleton 110 may be made up of only the inner skeleton 110a and only the outer skeleton 110b, and these may then be combined to form a four-wall structure as shown in Fig. 10, or the skeleton 110 may be made up of only the inner skeleton 110a and only the outer skeleton 110c, and these may then be combined to form a three-wall structure as shown in Fig. 11. Alternatively, N skeletons (N is an integer value of 2 or more) each having one wall (single-wall structure) may be manufactured separately, and these N skeletons may be arranged sequentially at a desired interval or overlapping each other in skeleton assembly step S3 of Fig. 1, for example, to form a skeleton with an N-wall structure.

[0133] Furthermore, the system configuration shown in FIG. 3 and the hardware configuration of each device of the center server 1 shown in FIG. 4 are merely examples for achieving the object of the present invention, and are not particularly limited.

[0134] Furthermore, the functional block diagram shown in Fig. 5 is merely an example and is not particularly limited. That is, it is sufficient if the information processing system in Fig. 3 is provided with a function that can execute the various processes described above as a whole, and the functional blocks and databases used to realize this function are not particularly limited to the example in Fig. 5.

[0135] Furthermore, the locations of the function blocks, models, and databases are not limited to those shown in FIG. 5 and may be arbitrary. For example, at least a part of the function blocks, models, or databases arranged on the center server 1 side may be provided in the print server 2, the user terminal 4, or another information processing device (not shown).

[0136] The above-described series of processes can be executed by hardware or software. Furthermore, one functional block may be configured as a single piece of hardware, a single piece of software, or a combination thereof.

[0137] When a series of processes is executed by software, the programs that make up the software are installed into a computer or the like from a network or a recording medium. The computer may be a computer built on dedicated hardware. The computer may also be a computer that can execute various functions by installing various programs, such as a server, a general-purpose smartphone, or a personal computer.

[0138] The recording medium containing such a program may be composed of not only a removable medium (not shown) that is distributed separately from the device main body in order to provide the program to the user, but also a recording medium that is provided to the user in a state that it is pre-installed in the device main body.

[0139] In this specification, the steps describing the program to be recorded on the recording medium include not only processes that are performed chronologically in accordance with the order, but also processes that are not necessarily performed chronologically but are performed in parallel or individually.

[0140] To sum up, the manufacturing method of a building to which the present invention is applied is sufficient as long as it has the following configuration, and can take on a variety of different embodiments.

[0141] That is, a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1) is as follows: Based on digital data (for example, digital data stored in the 3D structure data DB 73 of FIG. 5), the header (for example, header 5 of FIG. 8) of the 3D printer (for example, 3D printer 3 of FIG. 8) is stacked in an upward direction (for example, the above-mentioned vertical direction or diagonally upward direction), and the number of walls (for example, the number of walls constituting the skeleton 110 of FIG. 9 to FIG. 11) of the skeleton (for example, the number of walls constituting the skeleton 110 of FIG. 9 to FIG. 11) is determined to be 1 or more depending on the purpose of the structure (for example, the above-mentioned general housing, apartment building, public facility, shelter, obstacle, etc.) A skeleton wall number determination step (for example, the skeleton wall number determination step S1 of FIG. 1 or the processing performed by the skeleton wall number determination control unit 51 of FIG. 5) and the like); a skeleton manufacturing step (for example, the skeleton manufacturing step S2 in FIG. 1 or the processing performed by the skeleton manufacturing control unit 52 in FIG. 5) of manufacturing at least as many skeletons as necessary for the structure, so as to achieve the determined number of walls; A body assembly step (for example, the body assembly step S3 in FIG. 1 or the processing performed by the body assembly control unit 53 in FIG. 5) in which the manufactured body is assembled at a predetermined location (for example, the location where the 3D printer structures 100, 200, and 300 in FIG. 1 are placed) to form the structure of the desired shape; It is sufficient to include

[0142] This allows the production of structures suited to a variety of uses.

[0143] In addition, in a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1), The skeleton (e.g., skeleton 110 in Figures 9 and 10) manufactured so that the number of walls is three or more is A first wall (e.g., the first wall 110a-1 in FIG. 10) disposed at the innermost side of the structure; a second wall (e.g., second wall 110a-2 in FIG. 10) disposed outside the first wall; a plurality of ribs (e.g., a plurality of ribs 110a-3 in FIG. 10 ) arranged around the upward vertical axis and partially connecting the first wall and the second wall; a third wall (e.g., the third wall 110b-1 in FIG. 10 ) disposed outside the second wall without being formed with anything corresponding to the plurality of ribs; may include:

[0144] In addition, in a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1), The body is manufactured so that the wall thickness from the first wall to the third wall is at least 30 cm. It is preferable.

[0145] In addition, in a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1), The body (e.g., body 110 in FIGS. 9 and 10 ) further includes a fourth wall (e.g., fourth wall 110b-2 in FIG. 10 ) disposed outside the third wall (e.g., second wall 110a-2 in FIG. 10 ) at a distance greater than the distance between the second wall (e.g., second wall 110a-2 in FIG. 10 ) and the third wall (e.g., third wall 110b-1 in FIG. 10 ). It is preferable.

[0146] In addition, in a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1), The digital data includes 3D structural data for the structure as well as scan data (e.g., the digital scan in Figure 16) of the damaged structure (e.g., the structure in the left diagram in Figure 16), It is preferable.

[0147] In addition, in a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1), The material used is one that is mixed with glass fiber (for example, the glass fiber described above in the description of FIG. 8). It is preferable.

[0148] In addition, in a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the skeleton wall number determination step S1 to skeleton assembly step S3 in FIG. 1), The options for the use of the structure include at least disaster prevention and explosion prevention. It is preferable.

[0149] In addition, a manufacturing method of a structure to which the present invention is applied (for example, a manufacturing method including the steps S1 to S3 of determining the number of walls in FIG. 1) is as follows: a step of arranging a plurality of structures in a state where a predetermined interval is ensured (for example, the state shown in FIG. 17 ) or in a regular array state (for example, the state shown in FIG. 18 ) (processing performed by a control unit for arranging a plurality of structures (not shown) in the CPU 11 of FIG. 5 ); It may further include: [Explanation of symbols]

[0150] 1 Center server, 2 Print server, 3 3D printer, 4 User terminal, 5 Header, 51 Body wall number determination control unit, 52 Body manufacturing control unit, 53 Body assembly control unit, 54 Recovery measure control unit, 71 Order information DB, 72 3D printer information DB, 73 3D structure data DB, 74 Body information DB, 75 Recovery information DB, 100, 200, 300 3D printer structure, 110 Body Body, 110a...Inner skeleton, 110a-1...First wall, 110a-2...Second wall, 110a-3...Rib, 110a-4...End wall, 110b...Outer skeleton, 110b-1...Third wall, 110b-2...Fourth wall, 1 10b-3...End wall, 110c...Outer frame, 110c-1...Third wall, 110c-2...End wall, 120...Damage location, S1...Building frame wall number determination step, S2...Building frame manufacturing step, S3...Building frame assembly step

Claims

1. A skeleton wall number determination step for determining the number of walls of a skeleton manufactured by stacking concrete, mortar, or ceramic material output from a header of a 3D printer in an upward direction based on digital data to one or more walls depending on the purpose of the structure; a skeleton manufacturing step of manufacturing at least as many skeletons as necessary for the structure, each of which has the determined number of walls; a body assembly step of assembling the manufactured bodies at a predetermined location to form the structure having a desired shape; A method for manufacturing a structure comprising:

2. The body is manufactured so that the number of walls is three or more, a first wall disposed at the innermost side of the structure; a second wall disposed outside the first wall; a plurality of ribs arranged about the upward vertical axis and partially connecting the first wall and the second wall; a third wall disposed outside the second wall without having anything corresponding to the plurality of ribs formed thereon; A method for manufacturing the structure of claim 1, comprising:

3. The body is manufactured so that the wall thickness from the first wall to the third wall is at least 30 cm. A method for manufacturing the structure according to claim 2.

4. the body further includes a fourth wall disposed outside the third wall at a distance greater than a distance between the second wall and the third wall; A method for manufacturing the structure according to claim 3.

5. The digital data includes 3D structural data for the structure as well as scan data of the damaged structure. A method for manufacturing the structure according to claim 1.

6. The material used is one mixed with glass fiber. A method for manufacturing the structure according to claim 1.

7. The options for the use of the structure include at least disaster prevention and explosion prevention. A method for manufacturing the structure according to claim 1.

8. a step of arranging a plurality of the structures in a state where a predetermined interval is ensured or in a regular array; The method for manufacturing the structure of claim 1 further comprising:

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