Variable structure

Abstract

Achieve energy savings in variable structures. [Solution] The variable structure is installed inside another structure. Inside, plants or mushrooms are cultivated, livestock are raised, aquatic organisms are farmed, goods are stored, or servers are installed. The variable structure comprises a front wall, ceiling, rear wall, left side wall, right side wall, and bottom plate, all of which can change their configuration. The interior is formed by the front wall, ceiling, rear wall, left side wall, right side wall, and bottom plate enclosing the structure. A supply port, which is an opening for supplying conditioned air from an external air conditioner to the interior and is connected to a first hose that communicates with the air conditioner, is provided in at least one of the front wall, ceiling, rear wall, left side wall, right side wall, and bottom plate. By changing the configuration of the front wall, the state in which the outside and inside of the variable structure are separated is changed to a state in which the outside and inside are connected.

Description

Technical Field

[0001] This disclosure relates to a variable structure.

Prior Art Documents

Patent Documents

[0002]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0003] Patent Document 1 discloses a greenhouse provided with a lighting device for cultivating fruit and vegetable plants. The object of this disclosure is to achieve energy savings for a variable structure where plant cultivation, etc. is carried out.

Means for Solving the Problems

[0004] The variable structure of the first aspect is provided inside another structure. Inside, plants or mushrooms are cultivated, livestock are raised, aquatic organisms are cultured, goods are stored, or a server is installed. The variable structure includes a front wall, a ceiling, a rear wall, a left side wall, a right side wall, and a bottom plate. The front wall can be changed in aspect and erected inside. The ceiling is in contact with the front wall. The rear wall is erected inside, faces the front wall, and is in contact with the ceiling. The left side wall is erected inside and is in contact with the front wall, the ceiling, and the rear wall. The right side wall is erected inside, faces the left side wall, and is in contact with the front wall, the ceiling, and the rear wall. The bottom plate faces the ceiling and is in contact with the front wall. The inside is formed by being surrounded by the front wall, the ceiling, the rear wall, the left side wall, the right side wall, and the bottom plate. A supply port, which is an opening for supplying air-conditioned air from an external air conditioner to the inside and is communicated with a first hose communicating with the air conditioner, is provided on at least one of the front wall, the ceiling, the rear wall, the left side wall, the right side wall, and the bottom plate. By changing the aspect of the front wall, the variable structure can be changed from a state where the outside and the inside are blocked to a state where the outside and the inside are communicated.

[0005] The variable structure in the second aspect is the variable structure in the first aspect, wherein an exhaust port for discharging internal air from the inside to the outside is provided in at least one of the front wall, ceiling, rear wall, left side wall, right side wall, and bottom plate.

[0006] The variable structure in the third aspect is the variable structure in the second aspect, and the exhaust port is connected to a second hose that leads to an air conditioner.

[0007] The variable structure in the fourth view is a variable structure in any of the first, third, or fourth views, wherein the configuration of the lower surface of the base plate and the configuration of the upper surface of the ceiling are combined with each other so that multiple variable structures can be arranged vertically. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 2] This is a perspective view showing the detailed configuration of structure 100A. [Figure 3] This is a perspective view showing the detailed configuration of structure 100A. [Figure 4] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 5] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 6] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 7] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 8] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 9] This is a schematic diagram showing the overall configuration of Equipment 1. [Figure 10] This is a schematic diagram showing the overall configuration of Equipment 2. [Figure 11] This is a perspective view showing the detailed configuration of structure 200A. [Figure 12] This is a perspective view showing the detailed configuration of structure 200A. [Figure 13] It is a schematic configuration diagram showing the overall configuration of equipment 3. [Figure 14] It is a perspective view showing the detailed configuration of the structure 300A. [Figure 15] It is a perspective view showing the detailed configuration of the structure 300A. [Figure 16] It is a perspective view showing the detailed configuration of the structure 300A. [Figure 17] It is a schematic configuration diagram showing the overall configuration of equipment 4. [Figure 18] It is a perspective view showing the detailed configuration of the structure 400A. [Figure 19] It is a perspective view showing the detailed configuration of the structure 400A. [Figure 20] It is a schematic configuration diagram showing the overall configuration of equipment 4.

Mode for Carrying Out the Invention

[0009] ]> <Current Situation> In recent years, inside, there are structures where plants or mushrooms are cultivated, livestock are raised, aquatic organisms are cultured, goods are stored, servers are installed, and structures are used. In order to set the inside of the structure where plants or mushrooms, livestock, aquatic organisms, goods, and servers exist to a predetermined environment (temperature, humidity, etc.), air conditioning for the inside of the structure is performed. Therefore, there is a problem that a lot of energy is used for air conditioning the inside of the structure. Hereinafter, an embodiment of an example of a variable structure that contributes to solving the above problem will be described.

[0010] In the following embodiments, the front means the X direction, the rear means the minus X direction, the left means the minus Z direction, the right means the Z direction, the bottom means the minus Y direction, and the top means the Y direction. The depth is the length in the X direction. The width is the length in the Z direction. The height is the distance in the Y direction from the floor (or ground).

[0011] In the following embodiments, the floor is substantially horizontal. Therefore, if it is substantially perpendicular to the floor, it is substantially vertical. If it is substantially parallel to the floor, it is substantially horizontal. A perspective view is a view seen from diagonally above.

[0012] In the following embodiments, the structure includes a building and a workpiece. A building is a structure that has a roof and columns or walls among the workpieces fixed to the land. A workpiece is an artificial object fixed to the land. A hose is a pipe that carries a fluid such as air and includes a so-called "duct".

[0013] In the following embodiments, a planar component may have a curved surface over the entire plane or a part of the plane. Blocking includes not only being completely blocked but also being difficult to pass through. For example, when A and B are blocked, it includes that it becomes difficult to pass from B to A because the space between A and B is covered with a wall.

[0014] In the following embodiments, cultivating a plant does not always mean that the plant is present. Cultivating a plant includes the case where the plant is not present after being harvested. Also, cultivating a plant includes the case where the plant is present but cannot be visually confirmed with the naked eye. The state of the plant shown in the drawings is the state after growth has ended.

[0015] <First Embodiment> (1) Overall Configuration The overall configuration of the facility 1 according to the first embodiment will be described. FIG. 1 is a schematic configuration diagram showing the overall configuration of the facility 1. The facility 1 mainly includes a greenhouse 10 and an air conditioner 11.

[0016] (1-1) Greenhouse The greenhouse 10 refers to a structure in which a framework is assembled and its upper part is covered with vinyl or the like in order to cultivate the plant P. The plant P is cultivated inside the greenhouse 10.

[0017] The interior of the greenhouse 10 mainly consists of structure 100A and structure 100B. Structures 100A and 100B divide the interior of the greenhouse 10 into three areas: the area inside structure 100A I1, the area inside structure 100B I2, and the area outside structures 100A and 100B which is the interior of the greenhouse 10 I3. Details of structures 100A and 100B will be described later. The greenhouse 10 mainly has an entrance / exit 101, a passageway 102, and one or more lights (not shown).

[0018] Furthermore, facility 1 may be equipped with a greenhouse (such as a glass greenhouse or a plastic film greenhouse) instead of the vinyl greenhouse 10. Also, the vinyl greenhouse 10 may or may not be a building.

[0019] (1-1-1) Entrance / exit The entrance / exit 101 is an entrance for people or equipment that will be performing agricultural work to move from the outside of the greenhouse 10 to the inside of the greenhouse 10. The entrance / exit 101 is also an exit for people or equipment that have performed agricultural work to move from the inside of the greenhouse 10 to the outside of the greenhouse 10. The entrance / exit 101 may be a structure that can be opened and closed (opening / closing opening) or a structure that is open (opening). The greenhouse 10 may have multiple entrances / exits 101.

[0020] Agricultural work refers to work performed on plants P by people or equipment. Examples of agricultural work include sowing, which is the work of planting seeds or seedlings of plants P; cultivation, which is the work performed for the growth of plants P (watering, spraying pesticides, pruning, fertilizing, pest control, etc.); harvesting, which is the work of harvesting all or part of plants P; soil work, which is the work of preparing the soil or tilling it; hydroponic work, which is the work of storing or changing nutrient solutions; and other agricultural work.

[0021] (1-1-2) Passageway Passageway 102 is a passageway used by people or equipment when agricultural work is carried out, and is an outside passageway of structures 100A and 100B.

[0022] (1-2) Air conditioner The air conditioner 11 provides air conditioning to inner rooms I1 and I2. Examples of air conditioning include cooling, heating, ventilation, air purification, dehumidification, and humidification. The air outlet of the air conditioner 11 is connected to inner room I1 by a hose 111 (an example of a first hose). The air outlet of the air conditioner 11 is also connected to inner room I2 by a different hose (an example of a first hose, not shown) than hose 111. The air conditioned by the air conditioner 11 is supplied to inner rooms I1 and I2 via hoses 111, etc.

[0023] Furthermore, the location where the air conditioner 11 is installed is not limited to the outside of the greenhouse 10. The air conditioner 11 may be installed in at least one of the following spaces: the inner space I1, the inner space I2, and the space I3.

[0024] (2) Detailed configuration The detailed configurations of structures 100A and 100B will now be described. Structure 100A is a variable structure whose configuration can be changed by the operation of structure 100A. Structure 100B is a variable structure whose configuration can be changed by the operation of structure 100B. A variable structure is a structure whose configuration can be changed. The structure of structure 100A and the structure of structure 100B are substantially symmetric with respect to the planes extending in the Y and Z directions. The functions of structure 100A and structure 100B are the same. The structure and function of structure 100A will be described below. Figure 2 is a perspective view showing the detailed configuration of structure 100A.

[0025] Structure 100A mainly consists of a front wall 110, a first guide rail 112, a second guide rail 113, a case 114, a left side wall 120, a right side wall 130, a rear wall 140, a ceiling 150, and a bottom plate 160.

[0026] The first guide rail 112 is installed approximately perpendicular to the base plate 160. The second guide rail 113 is installed opposite the first guide rail 112 and approximately perpendicular to the base plate 160.

[0027] The front wall 110 is mainly composed of multiple slats SL. For example, the front wall 110 is mainly composed of nine slats SL. The slats SL are substantially perpendicular to the base plate 160. The slats SL are connected to other adjacent slats SL. The slats SL are guided by the first guide rail 112 and the second guide rail 113 and can slide in the Y direction or the negative Y direction (the direction in which the first guide rail 112 and the second guide rail 113 extend). The appearance of the front wall 110 is changed by the sliding of the slats SL guided by the first guide rail 112 and the second guide rail 113.

[0028] The front wall 110 is erected approximately perpendicular to the base plate 160. The front wall 110 faces the passageway 102.

[0029] Case 114 is provided above the front wall 110 and behind the first guide rail 112 and the second guide rail 113. Case 114 accommodates the slats SL that are slid in the Y direction. Case 114 is provided so as to accommodate all of the slats SL that make up the front wall 110. Case 114 may also be provided below the front wall 110.

[0030] The left wall 120 faces the right wall 130 and is positioned approximately perpendicular to the base plate 160. The left wall 120 is in contact with the front wall 110, the rear wall 140, the ceiling 150, and the base plate 160. The left wall 120 is provided with an opening 121 that communicates with the hose 111.

[0031] The opening 121 is an example of a supply port. Air conditioned by the air conditioner 11 is supplied to the interior I1 through the opening 121. The opening 121 may be provided in any of the front wall 110, the right side wall 130, the rear wall 140, the ceiling 150, or the bottom plate 160.

[0032] The right side wall 130 faces the left side wall 120 and is positioned approximately perpendicular to the base plate 160. The right side wall 130 is in contact with the front wall 110, the rear wall 140, the ceiling 150, and the base plate 160. The right side wall 130 is provided with an opening 131 that communicates with the outside of the structure 100A.

[0033] Opening 131 is an example of an exhaust port. Air from inside I1 is discharged from inside I1 to the outside of structure 100A through opening 131. For example, opening 131 is connected to a hose (an example of a second hose, not shown) that is connected to the intake port of air conditioner 11. Air from inside I1 flows to the intake port of air conditioner 11 via opening 131 and the hose.

[0034] The opening 131 may be provided in any of the front wall 110, the left side wall 120, the rear wall 140, the ceiling 150, or the bottom plate 160. The opening 131 may also be connected to a hose (not shown) that connects to a location outside the greenhouse 10 other than the intake port of the air conditioner 11.

[0035] The rear wall 140 faces the front wall 110 and is positioned approximately perpendicular to the base plate 160. The rear wall 140 is in contact with the left wall 120, the right wall 130, the ceiling 150, and the base plate 160.

[0036] The ceiling 150 faces the base plate 160 and is in contact with the front wall 110, the left side wall 120, the right side wall 130, and the rear wall 140.

[0037] The base plate 160 faces the ceiling 150 and is in contact with the front wall 110, the rear wall 140, the left side wall 120, and the right side wall 130. The base plate 160 is placed on the ground or on the floor of another structure (greenhouse 10, other variable structure, etc.).

[0038] The area where plant P is cultivated is enclosed by the front wall 110, the left side wall 120, the right side wall 130, the rear wall 140, the ceiling 150, and the bottom plate 160, thereby forming the interior I1. Specifically, the front wall 110 encloses the front side of the area where plant P is cultivated. The left side wall 120 encloses the left side of the area where plant P is cultivated. The right side wall 130 encloses the right side of the area where plant P is cultivated. The rear wall 140 encloses the rear side of the area where plant P is cultivated. The ceiling 150 encloses the upper side of the area where plant P is cultivated. The bottom plate 160 encloses the lower side of the area where plant P is cultivated.

[0039] The interior I1 is shielded from the outside of structure 100A and passage 102 by the front wall 110, left wall 120, right wall 130, rear wall 140, ceiling 150, and bottom plate 160. The space between interior I1 and the outside of structure 100A and passage 102 is covered by the front wall 110, left wall 120, right wall 130, rear wall 140, ceiling 150, and bottom plate 160. It becomes difficult for people, equipment, and air to pass from the outside of structure 100A and passage 102 to interior I1. Therefore, air supplied to interior I1 through the opening 121 does not easily flow from interior I1 to the outside of structure 100A. Air in space I3 also does not easily flow into interior I1. It is difficult for people or equipment to approach interior I1. People or equipment cannot secure workspace. Workspace is the space necessary for agricultural work.

[0040] Plants P are cultivated in the inner chamber I1. A portion or all of the bottom plate 160 in the inner chamber I1 is filled with soil (not shown) into which plants P can be planted, or with a nutrient solution (not shown) into which plants P can be immersed. In the inner chamber I1, plants P are either planted in soil or immersed in the nutrient solution.

[0041] Examples of the configuration of the left wall 120, right wall 130, rear wall 140, ceiling 150, bottom plate 160, and slat SL include, but are not limited to, a configuration of a frame and vinyl covering the frame, a configuration of a frame and glass covering the frame, a configuration of a frame and plastic film covering the frame, and a configuration in which the frame and the surface covering the frame are integrated.

[0042] The front wall 110 (with nine slats SL), the left wall 120, the right wall 130, the rear wall 140, and the ceiling 150 include transparent or translucent vinyl, glass, or plastic film so that the light from the lighting in space I3 is transmitted to the interior I1. Because the front wall 110 (with nine slats SL), the left wall 120, the right wall 130, the rear wall 140, and the ceiling 150 are transparent or translucent, the plants P inside I1 are visible from the outside of the structure 100A. Note that the case 114 and the bottom plate 160 do not necessarily have to include transparent or translucent vinyl, glass, or plastic film.

[0043] The depth of structure 100A (depth of ceiling 150 and base plate 160) is such that D1 and D2 are ensured. D1 is the shortest distance in the X direction from plant P to front wall 110 when plant P has finished growing. D1 is preferably between 1 cm and 10 cm, but is not limited to this. D2 is the shortest distance in the negative X direction from plant P to back wall 140 when plant P has finished growing. D2 is preferably between 1 cm and 10 cm, but is not limited to this.

[0044] The height of structure 100A (the height of the front wall 110, the left wall 120, the right wall 130, and the rear wall 140) is such that D3 is ensured. D3 is the shortest distance in the Y direction from plant P to ceiling 150 when plant P has finished growing. D3 is preferably between 1 and 10 centimeters, but is not limited to this.

[0045] The width of structure 100A (the width of the front wall 110, the rear wall 140, the ceiling 150, and the base plate 160) is such that D4 and D5 are ensured. D4 is the shortest distance in the negative Z direction from plant P to the left wall 120 when plant P has finished growing. D4 is preferably between 1 cm and 10 cm, but is not limited to this. D5 is the shortest distance in the Z direction from plant P to the right wall 130 when plant P has finished growing. D5 is preferably between 1 cm and 10 cm, but is not limited to this.

[0046] The left wall 120, the right wall 130, the rear wall 140, the ceiling 150, and the base plate 160 are components whose configuration cannot be changed. The front wall 110 is a component whose configuration can be changed. Therefore, structure 100A is a variable structure. Note that at least one of the left wall 120, the right wall 130, the rear wall 140, the ceiling 150, and the base plate 160 may be a component whose configuration can be changed. Various configurations of structure 100A will be described below.

[0047] Figure 3 is a perspective view showing the detailed configuration of structure 100A. The configuration of structure 100A in Figure 3 is the same as the configuration of structure 100A in Figure 2, but with the slat SL slid in the Y direction.

[0048] The nine slats SL are housed in case 114. The outside and passage 102 of structure 100A are connected to the inside I1 via the front of structure 100A. Because a working space is provided, a person or equipment performing agricultural work can perform agricultural work on plants P via the front of structure 100A.

[0049] Furthermore, the configuration of structure 100A in Figure 2 is also a configuration in which the slat SL is slid in the negative Y direction from the configuration of structure 100A in Figure 3. By changing the configuration of the front wall 110, the state in which the outside of structure 100A and the passage 102 are connected to the inside I1 is changed to a state in which the outside of structure 100A and the passage 102 are separated from the inside I1.

[0050] (3) Variant Regarding the modified version of the first embodiment, we will omit explanations of points that are the same as those of the first embodiment and focus on explaining the differences from the first embodiment.

[0051] (3-1) Variation 1A Structures 100A and 100B may be installed inside the mushroom cultivation facility 20. The mushroom cultivation facility 20 refers to a building or greenhouse in which mushrooms M are cultivated. Figure 4 is a schematic diagram showing the overall configuration of equipment 1 according to modified example 1A.

[0052] Racks R are provided in inner I1 and inner I2. Mycelial culture bottles B are placed on racks R. Mushrooms M are cultivated in mycelial culture bottles B. The mycelial culture bottles B and mushrooms M together are called set MS. Mushrooms M may be cultivated in mushroom bed bags instead of mycelial culture bottles B. Passageway 102 is a passageway in space I3 used by people or equipment when mushroom work (work generally performed on mushrooms M in the mushroom cultivation facility 20) is carried out.

[0053] Mushroom work refers to work performed on mushrooms M by people or equipment. Examples of mushroom work include inoculation, which involves planting mushroom spawn; cultivation, which is the work performed to grow mushrooms M; harvesting, which involves harvesting all or part of the mushrooms M; and other mushroom work. The workspace is the space necessary for mushroom work.

[0054] Rack R has multiple platforms arranged approximately perpendicular to the base plate 160. For example, rack R has three platforms arranged approximately perpendicular to the base plate 160. Mushrooms M are cultivated on each platform.

[0055] The depth of structure 100A (depth of ceiling 150 and base plate 160) is such that D6 and D7 are ensured. D6 is the shortest distance in the X direction from the base to the front wall 110. D6 is preferably between 1 cm and 5 cm, but is not limited to this. D7 is the shortest distance in the negative X direction from the base to the rear wall 140. D7 is preferably between 1 cm and 5 cm, but is not limited to this.

[0056] The height of structure 100A (the height of the front wall 110, the left wall 120, the right wall 130, and the rear wall 140) is such that D8 is secured. D8 is the shortest distance in the Y direction from the uppermost mushroom M to the ceiling 150 when the mushroom M has finished growing. D8 is preferably between 1 and 10 centimeters, but is not limited to this.

[0057] The width of structure 100A (the width of the front wall 110, the rear wall 140, the ceiling 150, and the base plate 160) is such that D9 and D10 are ensured. D9 is the shortest distance in the negative Z direction from the base to the left wall 120. D9 is preferably between 1 cm and 5 cm, but is not limited to this. D10 is the shortest distance in the Z direction from the base to the right wall 130. D10 is preferably between 1 cm and 5 cm, but is not limited to this.

[0058] (3-2) Modification 1B Structures 100A and 100B may be installed inside the plant factory 30. The plant factory 30 refers to a building in which plants P are cultivated. Figure 5 is a schematic diagram showing the overall configuration of equipment 1 according to modified example 1B.

[0059] Racks R are provided in inner sections I1 and I2. Plants P are cultivated on racks R. Plants P are planted in soil (not shown) on racks R or immersed in nutrient solution (not shown) on racks R. Lighting devices (not shown) that serve as a light source for plants P may be provided in structures 100A and 100B, or on racks R. The configuration of rack R is the same as in modified example 1A, so a description is omitted.

[0060] The depth and width of structure 100A in Modification 1B are the same as in Modification 1A, so their description is omitted. The height of structure 100A (the height between the front wall 110, the left wall 120, the right wall 130, and the rear wall 140) is a value that ensures D11 (not shown). D11 is the shortest distance in the Y direction from plant P to ceiling 150 when plant P has finished growing. D11 is preferably between 1 cm and 10 cm, but is not limited to this.

[0061] (3-3) Modification 1C Structures 100A and 100B may be located inside the server room 40. The server room 40 is a room where servers are installed. The server room 40 may be located inside other buildings (such as data centers, commercial buildings, industrial buildings, agricultural buildings, or residential buildings). Figure 6 is a schematic diagram showing the overall configuration of equipment 1 according to modified example 1C.

[0062] Server SVs are installed in inner I1 and inner I2. Passageway 102 is a passageway in space I3 used by people or equipment when server work (work performed by server engineers on server SVs) is carried out.

[0063] Server work refers to work performed on a server (SV) by a person or equipment. Examples of server work include maintenance work to keep the server (SV) in working order, replacement work to replace all or part of the server (SV), testing work to test the server (SV), and other server work. The workspace is the space required for server work.

[0064] Furthermore, the space I3, which is outside structures 100A and 100B and inside the server room 40, may be furnished with desks and chairs and used as a workspace. Alternatively, desks and chairs may be placed in place of either structure 100A or structure 100B and used as a workspace. In addition to the server SV, or in place of the server SV, other machinery requiring air conditioning may be installed in the interior spaces I1 and I2.

[0065] The depth of structure 100A (depth of ceiling 150 and base plate 160) is such that D12 and D13 are ensured. D12 is the shortest distance in the X direction from server SV to front wall 110. D12 is preferably between 5 cm and 20 cm, but is not limited to this. D13 is the shortest distance in the negative X direction from server SV to rear wall 140. D13 is preferably between 15 cm and 40 cm, but is not limited to this.

[0066] The height of structure 100A (the height of the front wall 110, left wall 120, right wall 130, and rear wall 140) is such that D14 is ensured. D14 is the shortest distance in the Y direction from server SV to ceiling 150. D14 is preferably between 5 and 20 centimeters, but is not limited to this.

[0067] The width of structure 100A (the width of the front wall 110, the rear wall 140, the ceiling 150, and the base plate 160) is such that D15 and D16 are ensured. D15 is the shortest distance in the negative Z direction from server SV to left wall 120. D15 is preferably between 5 and 20 centimeters, but is not limited to this. D16 is the shortest distance in the Z direction from server SV to right wall 130. D16 is preferably between 5 and 20 centimeters, but is not limited to this.

[0068] (3-4) Modification 1D Structures 100A and 100B may be installed inside the warehouse 50. Examples of warehouse 50 include, but are not limited to, a cold storage warehouse and a refrigerated warehouse. Figure 7 is a schematic diagram showing the overall configuration of equipment 1 according to modified example 1D. Goods G are stored in interior I1 and interior I2.

[0069] Specifically, racks R are provided in inner I1 and inner I2, and goods G are stored in racks R. Goods G include goods packaged in cardboard boxes, etc. Racks R are the same as in Modification 1A, so their explanation is omitted. Passageway 102 is a passageway in space I3 used by people or equipment when warehouse work is performed.

[0070] Warehouse operations are tasks performed by people or equipment (robots, vehicles, etc.) on goods G. Examples of warehouse operations include loading goods G onto racks R, picking goods G from racks R, checking the quantity and condition of goods G, and other warehouse operations. The workspace is the space necessary for warehouse operations. A roller conveyor (not shown) for transporting goods G may be provided inside the warehouse 50.

[0071] The depth and width of structure 100A are the same as in modified example 1A, so their description is omitted. The height of structure 100A (the height between the front wall 110, the left wall 120, the right wall 130, and the rear wall 140) is such that D17 (not shown) is ensured. D17 is the shortest distance in the Y direction from the product G stored on the top shelf of rack R to the ceiling 150. D17 is preferably between 5 and 10 centimeters, but is not limited to this.

[0072] (3-5) Modification 1E Structures 100A and 100B may be installed inside the livestock shed 60. Figure 8 is a schematic diagram showing the overall configuration of facility 1 according to modified example 1E. Livestock L are raised in inner I1 and inner I2. In Figure 8, livestock L are cattle, but are not limited to cattle. Passageway 102 is a passageway in space I3 used by people or equipment when livestock work is performed.

[0073] Livestock farming operations are tasks performed on livestock L by people or equipment. Examples of livestock farming operations include feeding livestock L, cleaning operations to remove manure and urine from livestock L, health operations such as treatment, prevention, and breeding of livestock L, harvesting operations such as harvesting eggs, wool, meat, and milk from livestock L, and other livestock farming operations. The work space is the space necessary for livestock farming operations.

[0074] The depth of structure 100A is the sum of the depth of livestock L (the horizontal length from the head to the tail of livestock L) and 30 cm to 1 m, but is not limited to this value. The width of structure 100A is the sum of the widths of all livestock L housed in structure 100A (the longest length of livestock L in the direction perpendicular to the depth of livestock L in the horizontal plane) and 50 cm to 2 m, but is not limited to this value. The height of structure 100A is the sum of the height of the person performing livestock work and 10 cm to 30 cm, but is not limited to this value.

[0075] (3-6) Modification 1F Structures 100A and 100B may be installed inside the land-based aquaculture farm 70. Figure 9 is a schematic diagram showing the overall configuration of facility 1 according to modified example 1F. Aquatic organisms Q are cultivated in inner I1 and inner I2. Specifically, tanks A are provided in inner I1 and inner I2, and aquatic organisms Q are cultivated in the water W stored in tanks A. The aquatic organisms Q in Figure 9 are fish, but are not limited to fish. Passageway 102 is a passageway in space I3 used by people or equipment when aquaculture work is carried out.

[0076] Aquaculture operations are human or equipment-based operations performed on aquatic organisms Q. Examples of aquaculture operations include feeding aquatic organisms Q, cleaning operations such as removing waste and cleaning tanks A, water operations such as supplying water W, changing water W, and testing water quality, health operations such as treating, preventing, and breeding aquatic organisms Q, harvesting operations such as harvesting eggs and flesh of aquatic organisms Q, and other aquaculture operations. The workspace is the space necessary for aquaculture operations.

[0077] The depth of structure 100A is the sum of the depth of tank A and 5cm to 30cm, but is not limited to this. The width of structure 100A is the sum of the width of tank A and 5cm to 30cm, but is not limited to this. The height of structure 100A is the sum of the height of the person performing the aquaculture work and 10cm to 30cm, but is not limited to this.

[0078] (3-7) Modification 1G The front wall 110 of the first embodiment and modified examples 1A, 1B, 1C, 1D, 1E, and 1F may be modified in appearance by control of a control device (not shown). In other words, the slat SL may slide along the first guide rail 112 and the second guide rail 113 by control of the control device.

[0079] (4) Features (4-1) The variable structure is installed inside another structure. Inside I1 and I2, plants P or mushrooms M are cultivated, livestock L are raised, aquatic organisms Q are farmed, goods G are stored, or servers SV are installed. The variable structure comprises a front wall 110, a ceiling 150, a rear wall 140, a left side wall 120, a right side wall 130, and a bottom plate 160. The front wall 110 can be changed in configuration and is erected inside. The ceiling 150 is in contact with the front wall 110. The rear wall 140 is erected inside, facing the front wall 110 and in contact with the ceiling 150. The left side wall 120 is erected inside and is in contact with the front wall 110, the ceiling 150, and the rear wall 140. The right side wall 130 is erected inward, facing the left side wall 120, and is in contact with the front wall 110, the ceiling 150, and the rear wall 140. The bottom plate 160 faces the ceiling 150 and is in contact with the front wall 110. The inner interiors I1 and I2 are formed by being enclosed by the front wall 110, the ceiling 150, the rear wall 140, the left side wall 120, the right side wall 130, and the bottom plate 160. A supply port, which is an opening for supplying air-conditioned air from the external air conditioner 11 to the inner interiors I1 and I2, and which is an opening that communicates with a first hose that goes to the air conditioner 11, is provided in at least one of the front wall 110, the ceiling 150, the rear wall 140, the left side wall 120, the right side wall 130, and the bottom plate 160. By changing the configuration of the front wall 110, the state in which the outside of the variable structure is separated from the inside I1 and inside I2 is changed to a state in which the outside is connected to the inside I1 and inside I2.

[0080] When cultivating plants inside a structure, air conditioning is provided to create an environment suitable for plant cultivation. The amount of energy required for air conditioning correlates with the volume of the structure's interior. Since plant cultivation requires work on the plants, the structure's interior must accommodate the necessary space for this work. In non-variable structures whose configuration cannot be changed, the space required for work is maintained even when no work is being performed. Therefore, air conditioning is provided for unnecessary space during periods when no work is being performed. This increases the amount of energy required for plant cultivation inside the structure, leading to increased costs associated with plant cultivation.

[0081] The variable structure is installed inside another structure, and the cultivation of plants P takes place in the inner I1 and inner I2. The variable structure can reduce the scope of air conditioning from the inside of the other structure to the inner I1 and inner I2. Therefore, the variable structure can achieve energy savings related to the cultivation of plants P and reduce the costs associated with the cultivation of plants P.

[0082] The state in which the outside of the variable structure is separated from the inside I1 and inside I2 can be changed to a state in which the outside of the variable structure is connected to the inside I1 and inside I2. The state in which no workspace is secured can be changed to a state in which workspace is secured. As a result, the variable structure enables people or devices to work on plants P, etc., in the inside I1 and inside I2.

[0083] When the configuration of a structure can be changed, the structure may be vulnerable to physical external forces. Therefore, the structure may be damaged by external forces such as strong winds, typhoons, or snow accumulation. Variable structures are installed inside other structures. Therefore, variable structures can protect plants P, etc., from physical external forces. In addition, the inner layers I1 and I2 are double-insulated from the outside. Therefore, variable structures can achieve energy savings in the cultivation of plants P, etc., and reduce the costs associated with cultivating plants P, etc.

[0084] The base plate 160 encloses the inner parts I1 and I2. The variable structure can also suppress heat loss to the lower side. Therefore, the variable structure can achieve energy savings in the cultivation of plants P, and reduce the costs associated with the cultivation of plants P.

[0085] The variable structure can form inner I1 and inner I2 using only its own components. Therefore, the variable structure can be moved to another location while maintaining the state in which plants P are being cultivated.

[0086] (4-2) The variable structure is provided with exhaust ports for discharging air from the interior I1 and interior I2 to the outside, located in at least one of the front wall 110, ceiling 150, rear wall 140, left side wall 120, right side wall 130, and bottom plate 160.

[0087] Because air is supplied to the inside of the structure, air inside the structure may be expelled through gaps in the structure. In this case, problems may arise where the air is not expelled smoothly, causing the internal air pressure to rise. Furthermore, problems may arise where gaps in the structure widen over time. In addition, the flow of air inside the structure becomes random depending on the location of the gaps, which may result in uneven temperature or humidity.

[0088] The variable structure expels the air from inside I1 and inside I2 to the outside of the variable structure. Therefore, the variable structure can maintain stable air pressure and airflow inside I1 and inside I2. In addition, the variable structure can maintain its airtightness for a longer period of time.

[0089] (4-3) The variable structure has an exhaust port that is connected to a second hose that leads to the air conditioner 11.

[0090] The air supplied from the air conditioner 11 to the inner parts I1 and I2 via the supply unit is discharged back into the air conditioner 11. The air circulating between the air conditioner 11 and the inner parts I1 and I2 is less likely to flow into space I3. The air conditioner 11 can limit the air it conditioned to the air circulating between the air conditioner 11 and the inner parts I1 and I2. Therefore, the variable structure can achieve energy savings related to the cultivation of plants P, and reduce the costs associated with the cultivation of plants P.

[0091] <Second Embodiment> (1) Overall structure The overall configuration of equipment 2 according to the second embodiment will be described below. Hereinafter, similarities between the first and second embodiments will be omitted, and the differences between the first and second embodiments will be the focus of the description. Figure 10 is a schematic diagram showing the overall configuration of equipment 2 according to the second embodiment. Equipment 2 mainly comprises a greenhouse 10 and an air conditioner 11.

[0092] (1-1) Greenhouse The interior of the greenhouse 10 is mainly provided with structures 200A, 200B, 200C, and 200D. Structures 200A, 200B, 200C, and 200D divide the interior of the greenhouse 10 into the area inside structure 200A I4, the area inside structure 200B I5, the area inside structure 200C I6, the area inside structure 200D I7, and the area outside structures 200A, 200B, 200C, and 200D, which is the interior of the greenhouse 10. Details of structures 200A, 200B, 200C, and 200D will be described later.

[0093] In addition, facility 2 may be equipped with a greenhouse instead of the vinyl greenhouse 10.

[0094] (1-2) Air conditioner The air outlet of the air conditioner 11 is connected to the interior I4 by a hose 115 (an example of a first hose). The air outlet of the air conditioner 11 is also connected to the interior I5 by a hose 116 (an example of a first hose). Furthermore, the air outlet of the air conditioner 11 is connected to the interior I6 and interior I7 by a hose different from hoses 115 and 116 (an example of a first hose, not shown). The air conditioned by the air conditioner 11 is supplied to the interior I4, interior I5, interior I6, and interior I7 via hoses 115 and 116, etc.

[0095] (2) Detailed configuration The detailed configurations of structures 200A, 200B, 200C, and 200D will be described below. Structure 200A is a variable structure whose configuration can be changed by the operation of structure 200A. Structure 200B is a variable structure whose configuration can be changed by the operation of structure 200B. Structure 200C is a variable structure whose configuration can be changed by the operation of structure 200C. Structure 200D is a variable structure whose configuration can be changed by the operation of structure 200D. The structure of structure 200A and the structure of structure 200C are substantially symmetric with respect to the planes extending in the Y and Z directions. The structure of structure 200A and the structure of structure 200B are similar. The structure of structure 200C is the same as the structure of structure 200D. The function of structure 200A is the same as the function of structure 200B, the function of structure 200C, and the function of structure 200D.

[0096] Structures 200A and 200B are arranged vertically. Structures 200C and 200D are also arranged vertically. The structure and function of structure 200A are described below. Figure 11 is a perspective view showing the detailed configuration of structure 200A.

[0097] Structure 200A mainly consists of a front wall 210, a third guide rail 211, a fourth guide rail 212, a case 213, a left side wall 220, a right side wall 230, a rear wall 240, a ceiling 250, and a bottom plate 260.

[0098] The third guide rail 211 is provided approximately parallel to the base plate 260. The fourth guide rail 212 is provided opposite the third guide rail 211 and approximately parallel to the base plate 260.

[0099] The front wall 210 is mainly composed of multiple slats SL. For example, the front wall 210 is mainly composed of 14 slats SL. The slats SL are connected to other adjacent slats SL. The slats SL are substantially perpendicular to the bottom plate 260. The slats SL can be slid in the Z direction or the negative Z direction (the direction in which the third guide rails 211 and the fourth guide rails 212 extend), guided by the third guide rail 211 and the fourth guide rail 212. The appearance of the front wall 210 is changed by the sliding of the slats SL guided by the third guide rail 211 and the fourth guide rail 212.

[0100] The front wall 210 is erected approximately perpendicular to the base plate 260. The front wall 210 faces the passageway 102.

[0101] Case 213 is provided on the right side of the front wall 210 and behind the third guide rail 211 and the fourth guide rail 212. Case 213 accommodates the slats SL that slide in the Z direction. Case 213 is provided so as to accommodate all of the slats SL that make up the front wall 210. Case 213 may also be provided on the left side of the front wall 210.

[0102] The left wall 220 faces the right wall 230 and is positioned approximately perpendicular to the base plate 260. The left wall 220 is in contact with the front wall 210, the rear wall 240, the ceiling 250, and the base plate 260.

[0103] An opening 221 is provided in the left wall 220, which communicates with the hose 115. The opening 221 is an example of a supply port. The opening 221 may also be provided in the front wall 210, the right wall 230, the rear wall 240, the ceiling 250, or the bottom plate 260.

[0104] The right side wall 230 faces the left side wall 220 and is positioned approximately perpendicular to the base plate 260. The right side wall 230 is in contact with the front wall 210, the rear wall 240, the ceiling 250, and the base plate 260. The right side wall 230 is provided with an opening 231 that communicates with the outside of the structure 200A.

[0105] Opening 231 is an example of an exhaust port. The air inside I4 is discharged from inside I4 to the outside of structure 200A through opening 231. For example, opening 231 is connected to a hose (an example of a second hose, not shown) that is connected to the intake port of air conditioner 11. The air inside I4 flows to the intake port of air conditioner 11 via opening 231 and the hose.

[0106] The opening 231 may be provided in any of the front wall 210, the left side wall 220, the rear wall 240, the ceiling 250, or the bottom plate 260. The opening 231 may also be connected to a hose (not shown) that connects to a location outside the greenhouse 10 other than the intake port of the air conditioner 11.

[0107] The rear wall 240 faces the front wall 210 and is positioned approximately perpendicular to the base plate 260. The rear wall 240 is in contact with the left wall 220, the right wall 230, the ceiling 250, and the base plate 260.

[0108] The ceiling 250 faces the base plate 260 and is in contact with the front wall 210, the left side wall 220, the right side wall 230, and the rear wall 240. The ceiling 250 is provided with convex portions E that project upward. For example, convex portions E are provided around each of the four corners of the ceiling 250.

[0109] The base plate 260 faces the ceiling 250 and is in contact with the front wall 210, the rear wall 240, the left side wall 220, and the right side wall 230. The base plate 260 is placed on the ground or on the floor of another structure (greenhouse 10, other variable structure, etc.). The base plate 260 is provided with recesses C that protrude upward. For example, recesses C are provided around each of the four corners of the base plate 260.

[0110] The protrusion E of the ceiling 250 and the recess C of the base plate 260 can be combined with each other. The configuration of the upper surface of the ceiling 250 and the configuration of the lower surface of the base plate 260 can be combined with each other. The base plate 260 of structure 200B can be combined on top of the ceiling 250 of structure 200A.

[0111] The area where the plant P is cultivated is enclosed by the front wall 210, the left side wall 220, the right side wall 230, the rear wall 240, the ceiling 250, and the bottom plate 260, thereby forming the interior I4. Specifically, the front wall 210 encloses the front side of the area where the plant P is cultivated. The left side wall 220 encloses the left side of the area where the plant P is cultivated. The right side wall 230 encloses the right side of the area where the plant P is cultivated. The rear wall 240 encloses the rear side of the area where the plant P is cultivated. The ceiling 250 encloses the upper side of the area where the plant P is cultivated. The bottom plate 260 encloses the lower side of the area where the plant P is cultivated.

[0112] The interior I4 is isolated from the outside of the structure 200A and the passage 102 by the front wall 210, the left wall 220, the right wall 230, the rear wall 240, the ceiling 250, and the bottom plate 260. The space between the interior I4 and the outside of the structure 200A and the passage 102 is covered by the front wall 210, the left wall 220, the right wall 230, the rear wall 240, the ceiling 250, and the bottom plate 260. It becomes difficult for people, equipment, and air to pass from the outside of the structure 200A and the passage 102 to the interior I4. Therefore, air supplied to the interior I4 through the opening 221 does not easily flow from the interior I4 to the outside of the structure 200A. Air in space I8 also does not easily flow into the interior I4. It is difficult for people or equipment to approach the interior I4. People or equipment cannot secure working space.

[0113] Plants P are cultivated in the inner part I4. A portion or all of the bottom plate 260 in the inner part I4 is filled with soil (not shown) into which plants P can be planted, or with a nutrient solution (not shown) into which plants P can be immersed. In the inner part I4, plants P are either planted in soil or immersed in the nutrient solution.

[0114] Examples of the configuration of the left wall 220, right wall 230, rear wall 240, ceiling 250, bottom plate 260, and slat SL include, but are not limited to, a configuration of a frame and vinyl covering the frame, a configuration of a frame and glass covering the frame, a configuration of a frame and plastic film covering the frame, and a configuration in which the frame and the surface covering the frame are integrated.

[0115] The front wall 210 (14 slats SL), the left wall 220, the right wall 230, the rear wall 240, and the ceiling 250 include transparent or translucent vinyl, glass, or plastic film so that the light from the lighting in space I8 is transmitted to the inside I4. Because the front wall 210 (14 slats SL), the left wall 220, the right wall 230, the rear wall 240, and the ceiling 250 are transparent or translucent, the plants P inside I4 are visible from the outside of the structure 200A. Note that the case 213 and the bottom plate 260 do not necessarily have to include transparent or translucent vinyl, glass, or plastic film.

[0116] The depth of structure 200A (depth of ceiling 250 and base plate 260) is such that D18 and D19 are ensured. D18 is the shortest distance in the X direction from plant P to the front wall 210 when plant P has finished growing. D18 is preferably between 1 cm and 10 cm, but is not limited to this. D19 is the shortest distance in the negative X direction from plant P to the back wall 240 when plant P has finished growing. D19 is preferably between 1 cm and 10 cm, but is not limited to this.

[0117] The height of structure 200A (the height of the front wall 210, left wall 220, right wall 230, and rear wall 240) is such that D20 is ensured. D20 is the shortest distance in the Y direction from plant P to ceiling 250 when plant P has finished growing. D20 is preferably between 1 and 10 centimeters, but is not limited to this.

[0118] The width of structure 200A (in other words, the width of the front wall 210, the rear wall 240, the ceiling 250, and the base plate 260) is such that D21 and D22 are ensured. D21 is the shortest distance in the negative Z direction from plant P to the left wall 220 when plant P has finished growing. D21 is preferably between 1 cm and 10 cm, but is not limited to this. D22 is the shortest distance in the Z direction from plant P to the right wall 230 when plant P has finished growing. D22 is preferably between 1 cm and 10 cm, but is not limited to this.

[0119] The left wall 220, the right wall 230, the rear wall 240, the ceiling 250, and the base plate 260 are components whose configuration cannot be changed. The front wall 210 is a component whose configuration can be changed. Therefore, structure 200A is a variable structure. Note that at least one of the left wall 220, the right wall 230, the rear wall 240, the ceiling 250, and the base plate 260 may be a component whose configuration can be changed. Various configurations of structure 200A will be described below.

[0120] Figure 12 is a perspective view showing the detailed configuration of structure 200A. The configuration of structure 200A in Figure 12 is the same as the configuration of structure 200A in Figure 11, but with the slat SL slid in the Z direction.

[0121] The 14 slats SL are housed in case 213. The outside and passage 102 and the inside I4 of structure 200A are connected via the front of structure 200A. Because a working space is provided, a person or equipment performing agricultural work can perform agricultural work on plants P via the front of structure 200A.

[0122] Note that the configuration of structure 200A in Figure 11 is also a configuration in which the slat SL is slid in the negative Z direction from the configuration of structure 200A in Figure 12. By changing the configuration of the front wall 210, the state in which the outside of structure 200A and the passage 102 and the inside I4 are in communication is changed to a state in which the outside of structure 200A and the passage 102 and the inside I4 are separated.

[0123] (3) Variant Regarding the modified version of the second embodiment, we will omit explanations of points that are the same as those of the second embodiment and focus on explaining the differences from the second embodiment.

[0124] (3-1) Modification 2A The configuration of the left side of the left wall 220 and the configuration of the right side of the right wall 230 may be combined with each other so that multiple structures 200A can be arranged on the left and right sides. For example, the left side of the left wall 220 and the right side of the right wall 230 are provided with a convex portion E and a concave portion C.

[0125] (3-2) Modification 2B Structures 200A and 200B of the second embodiment, modified example 2A, may be installed inside any of the following: mushroom cultivation facility 20, plant factory 30, server room 40, warehouse 50, livestock shed 60, and land-based aquaculture farm 70.

[0126] (3-3) Modification 2C The front wall 210 of the second embodiment, modified example 2A, and modified example 2B may be modified in appearance by control of a control device (not shown). In other words, the slat SL may slide along the third guide rail 211 and the fourth guide rail 212 by control of the control device.

[0127] (4) Features The variable structure is configured such that the configuration of the lower surface of the base plate 260 and the configuration of the upper surface of the ceiling 250 can be combined with each other so that multiple variable structures can be arranged vertically.

[0128] There may be discrepancies between the height of a variable structure installed inside another structure and the height of the other structure. In this case, wasted space may occur in the other structure. The variable structure is designed so that multiple variable structures can be arranged vertically. Therefore, the variable structure can reduce wasted space in the other structure and achieve energy savings in areas such as plant cultivation.

[0129] <Third Embodiment> (1) Overall structure The overall configuration of the equipment 3 according to the third embodiment will be described below. Hereinafter, similarities between the second and third embodiments will be omitted, and the differences between the second and third embodiments will be the focus of the description. Figure 13 is a schematic diagram showing the overall configuration of the equipment 3 according to the third embodiment. Equipment 3 mainly comprises a greenhouse 10 and an air conditioner 11.

[0130] (1-1) Greenhouse The interior of the greenhouse 10 is mainly provided with structures 300A, 300B, 300C, and 300D. Structures 300A, 300B, 300C, and 300D divide the interior of the greenhouse 10 into the inner area I9 of structure 300A, the inner area I10 of structure 300B, the inner area I11 of structure 300C, the inner area I12 of structure 300D, and the space I13 outside of structures 300A, 300B, 300C, and 300D, which is the interior of the greenhouse 10. Details of structures 300A, 300B, 300C, and 300D will be described later.

[0131] In addition, facility 3 may be equipped with a greenhouse instead of the vinyl greenhouse 10.

[0132] (1-2) Air conditioner The air outlet of the air conditioner 11 is connected to inner I9, inner I10, inner I11, and inner I12 by a hose (an example of a first hose, not shown). The air conditioned by the air conditioner 11 is supplied to inner I9, inner I10, inner I11, and inner I12 via the hose or the like.

[0133] (2) Detailed configuration The detailed configurations of structures 300A, 300B, 300C, and 300D will now be described. Structure 300A is a variable structure whose form can be changed by the operation of structure 300A. Structure 300B is a variable structure whose form can be changed by the operation of structure 300B. Structure 300C is a variable structure whose form can be changed by the operation of structure 300C. Structure 300D is a variable structure whose form can be changed by the operation of structure 300D.

[0134] The structure of structure 300A and the structure of structure 300C are approximately symmetric with respect to the planes extending in the Y and Z directions. The structure of structure 300B and the structure of structure 300D are approximately symmetric with respect to the planes extending in the Y and Z directions. The structure of structure 300A and the structure of structure 300B are the same except for their height. The functions of structure 300A, structure 300B, structure 300C, and structure 300D are the same.

[0135] Structures 300A and 300B are arranged vertically. Structures 300C and 300D are also arranged vertically. The structure and function of structure 300A are described below. Figure 14 is a perspective view showing the detailed configuration of structure 300A.

[0136] Structure 300A mainly consists of a front wall 310, a third guide rail 311, a fourth guide rail 312, a left side wall 320, a right side wall 330, a rear wall 340, a ceiling 350, and a base plate 360.

[0137] The third guide rail 311 is provided approximately parallel to the base plate 360. The third guide rail 311 includes two rows of rails aligned in the X direction and extending in the Z direction. Of the two rows of rails, the front rail is referred to as the "third front rail." Of the two rows of rails, the rear rail is referred to as the "third rear rail."

[0138] The fourth guide rail 312 is positioned opposite the third guide rail 311 and is installed approximately parallel to the base plate 360. The fourth guide rail 312 includes two rows of rails aligned in the X direction and extending in the Z direction. Of the two rows of rails, the front rail is referred to as the "fourth front rail." Of the two rows of rails, the rear rail is referred to as the "fourth rear rail." The third front rail and the fourth front rail face each other. The third rear rail and the fourth rear rail face each other.

[0139] The front wall 310 is mainly composed of two slats SL. The two slats SL are substantially perpendicular to the bottom plate 360. The two slats SL are guided by the third guide rail 311 and the fourth guide rail 312 and can slide in the Z direction or the negative Z direction (the direction in which the third guide rail 311 and the fourth guide rail 312 extend). The appearance of the front wall 310 is changed by sliding the two slats SL guided by the third guide rail 311 and the fourth guide rail 312.

[0140] Of the two slats SL that make up the front wall 310, the left slat SL is referred to as the "left slat SL," and the right slat SL is referred to as the "right slat SL." The left slat SL can move left and right by sliding between the third front rail and the fourth front rail. The right slat SL can move left and right by sliding between the third rear rail and the fourth rear rail. The two slats SL are not connected to each other and can slide independently of each other. The two slats SL are arranged so that they do not overlap (collide) with each other even when moving left and right.

[0141] The front wall 310 is erected approximately perpendicular to the base plate 360. The front wall 310 faces the passageway 102.

[0142] The left wall 320 faces the right wall 330 and is positioned approximately perpendicular to the base plate 360. The left wall 320 is in contact with the front wall 310, the rear wall 340, the ceiling 350, and the base plate 360.

[0143] The right side wall 330 faces the left side wall 320 and is positioned approximately perpendicular to the base plate 360. The right side wall 330 is in contact with the front wall 310, the rear wall 340, the ceiling 350, and the base plate 360.

[0144] The rear wall 340 faces the front wall 310 and is positioned approximately perpendicular to the base plate 360. The rear wall 340 is in contact with the left wall 320, the right wall 330, the ceiling 350, and the base plate 360. The rear wall 340 is provided with an opening 341 that communicates with a hose. The rear wall 340 is also provided with an opening 342 that communicates with the outside of the structure 300A.

[0145] The opening 341 is an example of a supply port. Air conditioned by the air conditioner 11 is supplied to the interior I9 through the opening 341. The opening 341 may be provided in any of the front wall 310, the left side wall 320, the right side wall 330, the ceiling 350, or the bottom plate 360.

[0146] Opening 342 is an example of an exhaust port. The air inside I9 is ​​discharged from inside I9 to the outside of structure 300A through opening 342. For example, opening 342 is connected to a hose (an example of a second hose, not shown) that is connected to the intake port of air conditioner 11. The air inside I9 flows to the intake port of air conditioner 11 via opening 342 and the hose.

[0147] The opening 342 may be provided in any of the front wall 310, the left side wall 320, the right side wall 330, the ceiling 350, or the bottom plate 360. The opening 342 may also be connected to a hose (not shown) that connects to a location outside the greenhouse 10 other than the intake port of the air conditioner 11.

[0148] The ceiling 350 faces the base plate 360 ​​and is in contact with the front wall 310, the left side wall 320, the right side wall 330, and the rear wall 340. The upper surface of the ceiling 350 is planar.

[0149] The base plate 360 ​​faces the ceiling 350 and is in contact with the front wall 310, the left side wall 320, the right side wall 330, and the rear wall 340. The underside of the base plate 360 ​​is flat. The base plate 360 ​​is placed on the ground or on the floor of another structure (greenhouse 10, other variable structure, etc.).

[0150] The configuration of the upper surface of the ceiling 350 and the configuration of the lower surface of the base plate 360 ​​are such that they can be combined with each other. The base plate 360 ​​of structure 300B can be combined on top of the ceiling 350 of structure 300A.

[0151] The area where the plant P is cultivated is enclosed by the front wall 310, the left side wall 320, the right side wall 330, the rear wall 340, the ceiling 350, and the bottom plate 360, thereby forming the interior I9. Specifically, the front wall 310 encloses the front of the area where the plant P is cultivated. The left side wall 320 encloses the left side of the area where the plant P is cultivated. The right side wall 330 encloses the right side of the area where the plant P is cultivated. The rear wall 340 encloses the rear of the area where the plant P is cultivated. The ceiling 350 encloses the upper part of the area where the plant P is cultivated. The bottom plate 360 ​​encloses the lower part of the area where the plant P is cultivated.

[0152] The interior space I9 is ​​isolated from the outside of the structure 300A and the passage 102 by the front wall 310, the left side wall 320, the right side wall 330, the rear wall 340, the ceiling 350, and the bottom plate 360. The space between the interior space I9 and the outside of the structure 300A and the passage 102 is covered by the front wall 310, the left side wall 320, the right side wall 330, the rear wall 340, the ceiling 350, and the bottom plate 360. It becomes difficult for people, equipment, and air to pass from the outside of the structure 300A and the passage 102 to the interior space I9. Therefore, air supplied to the interior space I9 through the opening 341 does not easily flow from the interior space I9 to the outside of the structure 300A. Air in space I13 also does not easily flow into the interior space I9. It is difficult for people or equipment to approach the interior space I9. People or equipment cannot secure working space.

[0153] Plants P are cultivated in the inner part I9. A portion of the bottom plate 360 ​​in the inner part I9 holds soil (not shown) in which plants P can be planted, or a nutrient solution (not shown) in which plants P can be immersed. In the inner part I9, plants P are either planted in soil or immersed in nutrient solution.

[0154] Examples of the configuration of the left wall 320, right wall 330, rear wall 340, ceiling 350, bottom plate 360, and slat SL include, but are not limited to, a configuration of a frame and vinyl covering the frame, a configuration of a frame and glass covering the frame, a configuration of a frame and plastic film covering the frame, and a configuration in which the frame and the surface covering the frame are integrated.

[0155] The front wall 310 (with two slats SL), the left wall 320, the right wall 330, the rear wall 340, and the ceiling 350 include transparent or translucent vinyl, glass, or plastic film so that the light from the lighting in space I13 is transmitted to the interior I9. Because the front wall 310 (with two slats SL), the left wall 320, the right wall 330, the rear wall 340, and the ceiling 350 are transparent or translucent, the plants P in the interior I9 are visible from the outside of the structure 300A.

[0156] The depth of structure 300A (depth of ceiling 350 and base plate 360) is such that D23 and D24 are ensured. D23 is the shortest distance in the X direction from plant P to the front wall 310 when plant P has finished growing. D23 is preferably between 1 cm and 10 cm, but is not limited to this. D24 is the shortest distance in the negative X direction from plant P to the back wall 340 when plant P has finished growing. D24 is preferably between 1 cm and 10 cm, but is not limited to this.

[0157] The height of structure 300A (the height of the front wall 310, left wall 320, right wall 330, and rear wall 340) is such that D25 is ensured. D25 is the shortest distance in the Y direction from plant P to ceiling 350 when plant P has finished growing. D25 is preferably between 1 and 10 centimeters, but is not limited to this.

[0158] The width of structure 300A (the width of the front wall 310, rear wall 340, ceiling 350, and base plate 360) is such that D26 and D27 are ensured. D26 is the shortest distance in the negative Z direction from plant P to the left wall 320 when plant P has finished growing. D26 is preferably between 1 cm and 10 cm, but is not limited to this. D27 is the shortest distance in the Z direction from plant P to the right wall 330 when plant P has finished growing. D27 is preferably between 1 cm and 10 cm, but is not limited to this.

[0159] The left wall 320, the right wall 330, the rear wall 340, the ceiling 350, and the base plate 360 ​​are components whose configuration cannot be changed. The front wall 310 is a component whose configuration can be changed. Therefore, structure 300A is a variable structure. Note that at least one of the left wall 320, the right wall 330, the rear wall 340, the ceiling 350, and the base plate 360 ​​may be a component whose configuration can be changed. Various configurations of structure 300A will be described below.

[0160] Figure 15 is a perspective view showing the detailed configuration of structure 300A. The configuration of structure 300A in Figure 15 is the same as the configuration of structure 300A in Figure 14, but with the left slat SL slid in the Z direction.

[0161] The left slat SL has slid in the Z direction, so it is roughly aligned with the right slat SL in the X direction. The inner I9 is ​​connected to the outside of structure 300A and the passage 102 via the left front side of structure 300A. The configuration of the front wall 310 has been changed from a state where the outside of structure 300A and the passage 102 were blocked from the inner I9 to a state where the outside of structure 300A and the passage 102 were connected to the inner I9. As a working space has been secured, a person or equipment performing agricultural work can perform agricultural work on plants P via the front side of structure 300A.

[0162] Figure 16 is a perspective view showing the detailed configuration of structure 300A. The configuration of structure 300A in Figure 16 is the same as the configuration of structure 300A in Figure 14, but with the right slat SL slid in the negative Z direction.

[0163] The right slat SL has been slid in the negative Z direction, so it is roughly aligned with the left slat SL in the X direction. The inner I9 is ​​connected to the outside of the structure 300A and the passage 102 via the right front side of the structure 300A. The configuration of the front wall 310 has been changed from a state where the outside of the structure 300A and the passage 102 were blocked from the inner I9 to a state where the outside of the structure 300A and the passage 102 are connected to the inner I9. As a working space has been secured, a person or equipment performing agricultural work can perform agricultural work on the plants P via the front side of the structure 300A.

[0164] Note that the configuration of structure 300A in Figure 14 is also the configuration of structure 300A in Figure 15, in which the left slat SL is slid in the negative Z direction. By changing the configuration of the front wall 310, the state in which the outside of structure 300A and passage 102 are connected to the inside I9 is ​​changed to a state in which the outside of structure 300A and passage 102 are separated from the inside I9.

[0165] Note that the configuration of structure 300A in Figure 14 is also the configuration of structure 300A in Figure 16, in which the right slat SL is slid in the Z direction. By changing the configuration of the front wall 310, the state in which the outside of structure 300A and passage 102 are connected to the inside I9 is ​​changed to a state in which the outside of structure 300A and passage 102 are separated from the inside I9.

[0166] (3) Variant Regarding the modified version of the third embodiment, we will omit explanations of points that are the same as those of the third embodiment and focus on explaining the differences from the third embodiment.

[0167] (3-1) Variation 3A The configuration of the left side of the left wall 320 and the configuration of the right side of the right wall 330 may be combined with each other so that multiple structures 300A can be arranged on the left and right sides. For example, the configuration of the left side of the left wall 320 and the configuration of the right side of the right wall 330 are planar.

[0168] (3-2) Modification 3B Structures 300A and 300B of the third embodiment, modified example 3A, may be installed inside any of the following: mushroom cultivation facility 20, plant factory 30, server room 40, warehouse 50, livestock shed 60, and land-based aquaculture farm 70.

[0169] (3-3) Modified example 3C The front wall 310 of the third embodiment, modification 3A, and modification 3B may be modified in appearance by control of a control device (not shown). In other words, the slat SL may slide along the third guide rail 311 and the fourth guide rail 312 by control of the control device.

[0170] <Fourth Embodiment> (1) Overall structure The overall configuration of the equipment 4 according to the fourth embodiment will now be described. Hereinafter, similarities between the first and fourth embodiments will be omitted, and the differences between the first and fourth embodiments will be the focus of the description. Figure 17 is a schematic diagram showing the overall configuration of the equipment 4 according to the fourth embodiment. Equipment 4 mainly comprises a greenhouse 10 and an air conditioner 11.

[0171] (1-1) Greenhouse The interior of the greenhouse 10 is mainly provided with structures 400A, 400B, 400C, and 400D. Structures 400A, 400B, 400C, and 400D divide the interior of the greenhouse 10 into the area inside structure 400A I14, the area inside structure 400B I15, the area inside structure 400C I16, the area inside structure 400D I17, and the space I18 outside structures 400A, 400B, 400C, and 400D, which is the interior of the greenhouse 10. Details of structures 400A, 400B, 400C, and 400D will be described later.

[0172] Furthermore, facility 4 may be equipped with a greenhouse instead of the vinyl greenhouse 10.

[0173] (1-2) Air conditioner The air outlet of the air conditioner 11 is connected to the interior I14 by a hose 111 (an example of the first hose). The air outlet of the air conditioner 11 is also connected to the interior I15, interior I16, and interior I17 by other hoses (an example of the first hose, not shown). The air conditioned by the air conditioner 11 is supplied to the interior I14, interior I15, interior I16, and interior I17 via hoses 111 and the like.

[0174] (2) Detailed configuration The detailed configurations of structures 400A, 400B, 400C, and 400D will be described below. Structure 400A is a variable structure whose form can be changed by the operation of structure 400A. Structure 400B is a variable structure whose form can be changed by the operation of structure 400B. Structure 400C is a variable structure whose form can be changed by the operation of structure 400C. Structure 400D is a variable structure whose form can be changed by the operation of structure 400D.

[0175] The structure of structure 400A and the structure of structure 400B are approximately symmetric with respect to the planes extending in the Y and X directions. The structure of structure 400A and the structure of structure 400C are approximately symmetric with respect to the planes extending in the Y and Z directions. The structure of structure 400C and the structure of structure 400D are approximately symmetric with respect to the planes extending in the Y and X directions. The functions of structure 400A, structure 400B, structure 400C, and structure 400D are the same. The structure and function of structure 400A will be described below. Figure 18 is a perspective view showing the detailed configuration of structure 400A.

[0176] Structure 400A mainly consists of a front wall 410, a left side wall 420, a right side wall 430, a rear wall 440, a ceiling 450, a base plate 460, and a rotating shaft AX.

[0177] The front wall 410 is erected approximately perpendicular to the base plate 460. The front wall 410 faces the passageway 102. The upper end of the front wall 410 is connected to the front end of the ceiling 450.

[0178] The left wall 420 faces the right wall 430 and is positioned approximately perpendicular to the base plate 460. The left wall 420 is in contact with the front wall 410, the rear wall 440, the ceiling 450, and the base plate 460. The left wall 420 is provided with an opening 421 that communicates with the hose 111.

[0179] The opening 421 is an example of a supply port. Air conditioned by the air conditioner 11 is supplied to the interior I14 through the opening 421. The opening 421 may also be provided in the front wall 410, the right side wall 430, the rear wall 440, the ceiling 450, and the bottom plate 460.

[0180] The right side wall 430 faces the left side wall 420 and is positioned approximately perpendicular to the base plate 460. The right side wall 430 is in contact with the front wall 410, the rear wall 440, the ceiling 450, and the base plate 460. The right side wall 430 is provided with an opening 431 that communicates with the outside of the structure 400A.

[0181] Opening 431 is an example of an exhaust port. The air inside I14 is discharged from inside I14 to the outside of structure 400A through opening 431. For example, opening 431 is connected to a hose (an example of a second hose, not shown) that is connected to the intake port of air conditioner 11. The air inside I14 flows to the intake port of air conditioner 11 via opening 431 and the hose.

[0182] The opening 431 may be provided in any of the front wall 410, the left side wall 420, the rear wall 440, the ceiling 450, or the bottom plate 460. The opening 431 may also be connected to a hose (not shown) that connects to a location outside the greenhouse 10 other than the intake port of the air conditioner 11.

[0183] The rear wall 440 faces the front wall 410 and is positioned approximately perpendicular to the base plate 460. The rear wall 440 is in contact with the left wall 420, the right wall 430, the ceiling 450, and the base plate 460.

[0184] The rotating shaft AX is provided along the rear end of the ceiling 450 and is approximately parallel to the bottom plate 460.

[0185] The ceiling 450 faces the base plate 460 and is in contact with the front wall 410, the left side wall 420, the right side wall 430, and the rear wall 440. The ceiling 450 can be moved by rotating it around the rotation axis AX. The ceiling 450 is rotatably mounted on a plane extending in the X and Y directions with the rotation axis AX as the center of rotation. The front end of the ceiling 450 is connected to the upper end of the front wall 410. Therefore, when the ceiling 450 is rotated around the rotation axis AX, the front wall 410 also rotates along with the ceiling 450. This changes the orientation of the front wall 410.

[0186] The base plate 460 faces the ceiling 450 and is in contact with the front wall 410, the left side wall 420, the right side wall 430, and the rear wall 440. The base plate 460 is placed on the ground or on the floor of another structure (greenhouse 10, other variable structure, etc.).

[0187] The area where the plant P is cultivated is enclosed by the front wall 410, the left side wall 420, the right side wall 430, the rear wall 440, the ceiling 450, and the bottom plate 460, thereby forming the interior I14. Specifically, the front wall 410 encloses the front side of the area where the plant P is cultivated. The left side wall 420 encloses the left side of the area where the plant P is cultivated. The right side wall 430 encloses the right side of the area where the plant P is cultivated. The rear wall 440 encloses the rear side of the area where the plant P is cultivated. The ceiling 450 encloses the upper side of the area where the plant P is cultivated. The bottom plate 460 encloses the lower side of the area where the plant P is cultivated.

[0188] The interior space I14 is isolated from the outside of the structure 400A and the passage 102 by the front wall 410, the left side wall 420, the right side wall 430, the rear wall 440, the ceiling 450, and the bottom plate 460. The space between the interior space I14 and the outside of the structure 400A and the passage 102 is covered by the front wall 410, the left side wall 420, the right side wall 430, the rear wall 440, the ceiling 450, and the bottom plate 460. It becomes difficult for people, equipment, and air to pass from the outside of the structure 400A and the passage 102 to the interior space I14. Therefore, air supplied to the interior space I14 through the opening 421 does not easily flow from the interior space I14 to the outside of the structure 400A. Air in space I18 also does not easily flow into the interior space I14. It is difficult for people or equipment to approach the interior space I14. People or equipment cannot secure working space.

[0189] Plants P are cultivated in the inner part I14. A portion of the bottom plate 460 in the inner part I14 holds either soil (not shown) in which plants P can be planted or a nutrient solution (not shown) in which plants P can be immersed. In the inner part I14, plants P are either planted in soil or immersed in nutrient solution.

[0190] Examples of configurations for the front wall 410, left wall 420, right wall 430, rear wall 440, ceiling 450, and base plate 460 include, but are not limited to, a configuration of a frame and vinyl covering the frame, a configuration of a frame and glass covering the frame, a configuration of a frame and plastic film covering the frame, and a configuration in which the frame and the surface covering the frame are integrated.

[0191] The front wall 410, the left wall 420, the right wall 430, the rear wall 440, and the ceiling 450 include transparent or translucent vinyl, glass, or plastic film so that the light from the lighting in space I18 is transmitted to the interior I14. Because the front wall 410, the left wall 420, the right wall 430, the rear wall 440, and the ceiling 450 are transparent or translucent, the plants P inside I14 are visible from the outside of the structure 400A.

[0192] The depth of structure 400A (depth of ceiling 450 and base plate 460) is such that D28 and D29 are ensured. D28 is the shortest distance in the X direction from plant P to the front wall 410 when plant P has finished growing. D28 is preferably between 1 cm and 10 cm, but is not limited to this. D29 is the shortest distance in the negative X direction from plant P to the back wall 440 when plant P has finished growing. D29 is preferably between 1 cm and 10 cm, but is not limited to this.

[0193] The height of structure 400A (the height of the front wall 410, left wall 420, right wall 430, and rear wall 440) is such that D30 is ensured. D30 is the shortest distance in the Y direction from plant P to ceiling 450 when plant P has finished growing. D30 is preferably between 1 and 10 centimeters, but is not limited to this.

[0194] The width of structure 400A (the width of the front wall 410, rear wall 440, ceiling 450, and base plate 460) is such that D31 and D32 are ensured. D31 is the shortest distance in the negative Z direction from plant P to the left wall 420 when plant P has finished growing. D31 is preferably between 1 cm and 10 cm, but is not limited to this. D32 is the shortest distance in the Z direction from plant P to the right wall 430 when plant P has finished growing. D32 is preferably between 1 cm and 10 cm, but is not limited to this.

[0195] The left wall 420, the right wall 430, the rear wall 440, and the bottom plate 460 are components whose configuration cannot be changed. The front wall 410 and the ceiling 450 are components whose configuration can be changed. Therefore, structure 400A is a variable structure. Note that at least one of the left wall 420, the right wall 430, the rear wall 440, and the bottom plate 460 may be a component whose configuration can be changed. For example, at least one of the left wall 420 and the right wall 430 may be connected to the ceiling 450. In this case, at least one of the left wall 420 and the right wall 430 connected to the ceiling 450 will rotate along with the ceiling 450. The following describes a configuration of structure 400A that differs from the configuration of structure 400A shown in Figure 18.

[0196] Figure 19 is a perspective view showing the detailed configuration of structure 400A. The configuration of structure 400A in Figure 19 is the same as the configuration of structure 400A in Figure 18, but with the ceiling 450 rotated around the rotation axis AX. The ceiling 450 is rotated by slightly less than 90 degrees in the planes extending in the X and Y directions, with the rotation axis AX as the center of rotation. Because the ceiling 450 has rotated, the front wall 410 has also rotated along with the ceiling 450.

[0197] The interior I14 of structure 400A is in communication with the exterior of structure 400A and passage 102 via the front and top. By changing the configuration of the ceiling 450 and front wall 410, the interior I14 of structure 400A is separated from the exterior and passage 102, and is now in communication with the exterior and passage 102. As a working space is secured, people or equipment performing agricultural work can perform agricultural work on plants P via the front and top of structure 400A.

[0198] Furthermore, the configuration of structure 400A in Figure 18 is also the configuration of structure 400A in Figure 19 in which the ceiling 450 has been rotated around the rotation axis AX. The ceiling 450 has been rotated by slightly less than 90 degrees in the planes extending in the X and Y directions, with the rotation axis AX as the center of rotation. Because the ceiling 450 has been rotated, the front wall 410 has also been rotated along with the ceiling 450.

[0199] The configuration of the ceiling 450 and the front wall 410 has been changed, altering the state from one in which the outside of the structure 400A and the passage 102 are connected to the inside I14, to one in which the outside of the structure 400A and the passage 102 are separated from the inside I14.

[0200] (3) Variant Regarding the modified version of the fourth embodiment, we will omit explanations of points that are the same as those of the fourth embodiment and focus on explaining the differences from the fourth embodiment.

[0201] (3-1) Modification 4A Structures 400A, 400B, 400C, and 400D are mounted on the support base Su and may be used for so-called elevated cultivation. Figure 20 is a schematic diagram showing the overall configuration of equipment 4 according to modified example 4A.

[0202] (3-2) Modification 4B In the fourth embodiment, modified example 4A, structures 400A, 400B, 400C, and 400D may be installed inside any of the following: the mushroom cultivation facility 20, the plant factory 30, the server room 40, the warehouse 50, the livestock shed 60, and the land-based aquaculture farm 70.

[0203] (3-3) Modification 4C The front wall 410 and ceiling 450 of the fourth embodiment, modified example 4A, and modified example 4B may be modified in appearance by control of a control device (not shown). In other words, the front wall 410 and ceiling 450 may be rotated about the rotation axis AX by control of the control device.

[0204] While embodiments of this disclosure have been described above, it should be understood that various modifications to the form and details are possible without departing from the spirit and scope of this disclosure as described in the claims. [Explanation of Symbols]

[0205] 11. Air conditioner 110 Front wall 120 Left side wall 130 Right side wall 140 Back wall 150 patios 160 base plate 210 Anterior wall 220 Left side wall 230 Right side wall 240 Rear Wall 250 patio 260 base plate 310 Anterior Wall 320 Left side wall 330 Right side wall 340 Rear Wall 350 patio 360 base plate 410 Anterior wall 420 Left side wall 430 Right side wall 440 Rear Wall 450 Patio 460 base plate G product M キノコ L Livestock I1 inner side I2 inner side I4 inner side I5 inner side I6 inner side I7 inside I9 inner side I10 inner side I11 inner side I12 inner side I14 inner side I15 inside I16 inner side I17 inner side P plant SV サーバー Q Aquatic life

Claims

1. A variable structure installed inside another structure, wherein, inside (I1, I2, I4, I5, I6, I7, I9, I10, I11, I12, I14, I15, I16, I17), plants (P) or mushrooms (M) are cultivated, livestock (L) are raised, aquatic organisms (Q) are farmed, goods (G) are stored, or servers (SV) are installed. The configuration can be changed, and the front walls (110, 210, 310, 410) erected inside, The ceiling (150, 250, 350, 450) adjacent to the aforementioned front wall, A rear wall (140, 240, 340, 440) is erected inside the aforementioned interior, facing the front wall and in contact with the ceiling, The left side wall (120, 220, 320, 420) is erected inside the aforementioned interior and is in contact with the front wall, the ceiling, and the rear wall, The right wall (130, 230, 330, 430) is erected inside the aforementioned interior, facing the left wall, and in contact with the front wall, the ceiling, and the rear wall, A base plate (160, 260, 360, 460) facing the ceiling and in contact with the front wall, the rear wall, the left wall, and the right wall, Equipped with, The interior is formed by being surrounded by the front wall, the ceiling, the rear wall, the left side wall, the right side wall, and the bottom plate. A supply port is provided in at least one of the front wall, the ceiling, the rear wall, the left side wall, the right side wall, and the bottom plate, which is an opening for supplying conditioned air from the external air conditioner (11) to the interior, and which is an opening that communicates with a first hose that communicates with the air conditioner. By changing the configuration of the front wall, the state in which the outside and inside of the variable structure are separated is changed to a state in which the outside and inside are in communication. Variable structure.

2. An exhaust port for discharging the internal air from the inside to the outside is provided in at least one of the front wall, the ceiling, the rear wall, the left side wall, the right side wall, and the bottom plate. The variable structure according to claim 1.

3. The exhaust port is connected to a second hose that leads to the air conditioner. The variable structure according to claim 2.

4. The configuration of the lower surface of the base plate and the configuration of the upper surface of the ceiling are such that multiple variable structures can be arranged vertically. A variable structure according to any one of claims 1 to 3.

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