Plant cultivation system

Abstract

This plant cultivation system reduces the burden on workers and improves productivity by minimizing wasted space in the cultivation room. [Solution] The system comprises a anteroom 11 where cultivation management work is performed, a main field 12 which is a separate space from the anteroom 11 where the cultivated plants planted in the anteroom 11 are moved and grown, and a roller conveyor 14 for transporting transport containers 21 containing the cultivated plants. The roller conveyor 14 is provided to form a transport path that circulates between the anteroom 11 and the main field 12. As a result, workers can perform cultivation management work in the anteroom 11 without having to move into the main field 12. Therefore, the burden on workers can be reduced, work efficiency can be increased, and the productivity of plant cultivation can be improved. In addition, since there is no need to provide a workspace in the main field 12, the large space inside the main field 12 can be effectively utilized as space for plant cultivation, thereby increasing productivity.

Description

Technical Field

[0001] The present invention relates to a plant cultivation system, and particularly to a plant cultivation system having an agricultural greenhouse.

Background Art

[0002] Agricultural greenhouses such as vinyl greenhouses are widely used for cultivating agricultural crops such as vegetables and fruits. For example, Patent Document 1 discloses an agricultural greenhouse used for protected cultivation of vegetables, fruits, horticultural plants, etc.

[0003] Also, for example, Patent Document 2 discloses a suspension type self-propelled transport device composed of a rail provided in an indoor space using a structure in an agricultural greenhouse such as a vinyl greenhouse, and a loading platform portion that is suspended and self-propelled on this rail.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Conventional agricultural greenhouses and the like had points that needed to be improved in order to reduce the burden on workers and improve productivity. Specifically, in general agricultural greenhouses and the like, workers need to perform operations such as planting and harvesting in the cultivation room, and require a great deal of labor for transporting seedlings and harvested products. In addition, since the inside of an agricultural greenhouse and the like needs to be managed so as to have appropriate temperature and humidity for the plants that are the cultivated crops, it can be a very harsh environment of high temperature, high humidity or low temperature for workers.

[0006] Furthermore, in configurations that transport cultivated materials using a suspended self-propelled transport device, as disclosed in Patent Document 2, the labor required of workers to transport the cultivated materials can be reduced. However, unloading from and loading onto the transport device's platform is still necessary inside agricultural greenhouses, and the work still requires being performed in a harsh working environment where plant cultivation takes priority.

[0007] Furthermore, configurations using conventional conveying devices require securing space for workers to perform their tasks inside agricultural greenhouses or similar structures. This presents a problem in that the space inside the cultivation room cannot be used effectively.

[0008] Furthermore, the suspended self-propelled transport device disclosed in Patent Document 2 makes it difficult to change the direction of transport of cultivated products, etc. That is, in order to change the direction of transport, the rails must be formed in a curved shape, and in the interior of an agricultural greenhouse or the like, the space required for changing direction becomes wasted.

[0009] This invention has been made in view of the above circumstances, and its purpose is to provide a plant cultivation system that can reduce the burden on workers and improve productivity by reducing wasted space in the cultivation room. [Means for solving the problem]

[0010] The plant cultivation system of the present invention comprises a anteroom where management work on cultivated plants is performed, a main field which is a space separated from the anteroom and where the cultivated plants planted in the anteroom are moved and grown, and a roller conveyor which transports transport containers containing the cultivated plants, wherein the roller conveyor is provided to form a transport path that circulates between the anteroom and the main field. [Effects of the Invention]

[0011] The plant cultivation system of the present invention comprises a anteroom where management work on cultivated plants is performed, a main field separated from the anteroom where the cultivated plants planted in the anteroom are moved and grown, and a roller conveyor for transporting containers containing the cultivated plants. The roller conveyor is provided to form a transport path that circulates between the anteroom and the main field. With this configuration, workers can efficiently perform management work such as planting, watering, disinfecting, fertilizing, and harvesting of cultivated plants, as well as attaching and detaching transport containers or cultivation containers, in the anteroom without having to move into the main field. Therefore, the burden on workers can be reduced, work efficiency can be increased, and the productivity of plant cultivation can be improved.

[0012] Furthermore, by minimizing the number of workers entering the field, it is possible to reduce the intrusion of pathogens such as bacteria, fungi, and viruses from the outside, thereby preventing the cultivated crops from becoming infected with disease.

[0013] Furthermore, there is no need to provide space within the main field for workers to move around and perform their tasks. Therefore, the large space within the main field can be effectively utilized as space for plant cultivation, thereby increasing the productivity of the cultivated crops.

[0014] Furthermore, since the anteroom and the main field are separated, the temperature and humidity inside the anteroom can be kept at a comfortable level for workers, while the main field can be made into an environment suitable for the growth of cultivated crops. This improves the working environment and increases work efficiency, as well as cultivation efficiency and growing environment, thereby increasing the productivity of cultivated crops.

[0015] Furthermore, in the plant cultivation system of the present invention, the roller conveyor may have a right-angle direction changer that changes the direction of a straight path extending horizontally by 90 degrees horizontally. With such a configuration, the wasted space required to change the conveying direction is reduced, and a larger space can be secured for cultivating the plants.

[0016] Furthermore, in the plant cultivation system of the present invention, the roller conveyor may have parallel linear opposing paths arranged in parallel rows of at least one pair of linear paths that send the transport containers in opposite directions. With such a configuration, the plants to be cultivated can be suitably arranged inside the field, and the space inside the field can be effectively utilized for cultivating the plants.

[0017] Furthermore, in the plant cultivation system of the present invention, the linear opposing path may be provided with a removable transport guide installed between the paths to guide the transport of the transport containers. This allows the transport containers, which are being sent in opposite directions on the parallel roller conveyors in the linear opposing path, to be protected by the guide from contact and falling off the roller conveyors. As a result, the pair of roller conveyors constituting the linear opposing path can be placed close together, reducing wasted space, making effective use of the space in the field, and enabling safe transport of cultivated materials. In addition, since the guide is removable, maintenance of the roller conveyor can be easily performed by removing the guide when a problem occurs with the roller conveyor.

[0018] Furthermore, in the plant cultivation system of the present invention, the transport container has the shape of a rectangular box with an open top, and its longitudinal dimension is greater than the width of the roller conveyor. In the straight opposing path, the transport container may be placed sideways with respect to the feed direction of the roller conveyor so that it is transported in the short direction. With this configuration, it is possible to secure space between the parallel roller conveyors for maintenance of the roller conveyors, etc., while effectively utilizing the internal space of the field to place and transport a large number of transport containers inside the field. Thus, highly productive plant cultivation becomes possible.

[0019] In addition, in the plant cultivation system of the present invention, a working path may be formed in the front chamber such that the transport container is placed vertically with respect to the feeding direction of the roller conveyor so as to be transported in the longitudinal direction. With such a configuration, in the front chamber, an operator can easily perform management operations such as planting, watering, disinfection, fertilization, and harvesting of cultivated plants, as well as attaching and detaching the transport container or cultivation container.

[0020] Further, the plant cultivation system of the present invention may include an air conditioner that cools or heats at least one of the front chamber and the main nursery, and the indoor unit of the air conditioner may be arranged to send cooled or heated air below the roller conveyor. Thereby, without providing an air-conditioning duct or the like inside the main nursery, the space below the roller conveyor can be used as an air passage through which air for air conditioning flows. Therefore, the inside of the main nursery or the front chamber can be adjusted to a temperature and humidity suitable for plant growth or farming work, and the internal space of the main nursery can be effectively utilized to efficiently cultivate plants.

Brief Description of the Drawings

[0021] [Figure 1] It is a plan view showing a schematic configuration of a plant cultivation system according to an embodiment of the present invention. [Figure 2] It is a plan view showing a path of a roller conveyor of a plant cultivation system according to an embodiment of the present invention. [Figure 3] It is a perspective view showing the bottom surface of a transport container of a plant cultivation system according to another embodiment of the present invention. [Figure 4] It is a perspective view showing the bottom surface of a transport container of a plant cultivation system according to another embodiment of the present invention. [Figure 5] It is a plan view showing a schematic configuration of a plant cultivation system according to another embodiment of the present invention.

Modes for Carrying Out the Invention

[0022] Hereinafter, the plant cultivation system 1 according to an embodiment of the present invention will be described in detail based on the drawings. Figure 1 is a plan view showing the schematic configuration of a plant cultivation system 1 according to an embodiment of the present invention. As shown in Figure 1, the plant cultivation system 1 comprises an agricultural greenhouse 10 and a roller conveyor 14 installed inside the agricultural greenhouse 10, and is used to cultivate plants such as vegetables, fruits, and ornamental plants.

[0023] The agricultural greenhouse 10 is a greenhouse for cultivating plants, such as an agricultural plastic greenhouse or a glass greenhouse. Alternatively, the agricultural greenhouse 10 may be a structure that cultivates plants without using sunlight, such as a plant factory.

[0024] The interior of the agricultural greenhouse 10 is divided by partition sheets 13 into an anteroom 11 where management work on cultivated plants and other crops is carried out, and a main field 12 where the crops planted in the anteroom 11 are moved and grown.

[0025] The partition sheet 13 is, for example, a vinyl sheet, a vinyl curtain, or other sheet or woven fabric made of synthetic resin. The partition sheet 13 is not limited to being made from a sheet-like material, but may also be a wall or the like made from a sheet material such as synthetic resin, metal, or wood.

[0026] The anteroom 11 is a workspace where workers perform management tasks such as planting, watering, disinfecting, fertilizing, and harvesting of cultivated crops. In addition, workers can attach and detach transport containers 21 containing cultivated crops to and from the roller conveyor 14 in the anteroom 11.

[0027] The main field 12 is the space where the crops are grown. The crops that have been planted in the transport containers 21 in the anteroom 11 are transported to the main field 12 by the roller conveyor 14 and grown in the main field 12.

[0028] Here, the transport container 21 is a container for transporting cultivated plants, and is, for example, a roughly rectangular pot, container, or so-called styrofoam box made of polystyrene foam or other synthetic resin with an open top.

[0029] The transport container 21 may, for example, have multiple plants directly planted in it, or it may have a cultivation container (not shown) such as a pot in which the plants have been planted placed on it. In the configuration where a cultivation container is placed on the transport container 21, when cultivating plants such as strawberries, where the harvested produce protrudes outwards from the sides of the cultivation container, it is possible to prevent the harvested produce that protrudes outwards from the sides of the cultivation container from protruding outwards from the transport container 21. This prevents the harvested produce from protruding outwards from the sides of the transport container 21 and colliding with plants being transported in other transport containers 21 or the transport guide 25 (described later), which may result in damage such as crushing.

[0030] As described above, if a cultivation container (not shown) is placed on the transport container 21, the worker can perform the tasks of attaching and detaching the cultivation container to the transport container 21 in the anteroom 11.

[0031] Figure 2 is a plan view showing the path of the roller conveyor 14. Referring to Figures 1 and 2, the roller conveyor 14 is a device for transporting transport containers 21 containing cultivated crops, and is installed inside the agricultural greenhouse 10 to form a transport path that circulates between the anteroom 11 and the main field 12 of the agricultural greenhouse 10. In Figures 1 and 2, the direction in which the transport containers 21 are transported is indicated by arrows.

[0032] Specifically, the roller conveyor 14 includes, for example, a pair of parallel rails 15 and a plurality of rollers 16 that are supported by the rails 15 near both ends of their axis of rotation and rotate. The rollers 16 support the transport container 21 so that it can move along the transport path, that is, in the direction in which the rails 15 extend.

[0033] The roller conveyor 14 is equipped with a drive device (not shown). The drive device is, for example, an electric motor, which rotates the drive roller of the roller 16 via a transmission mechanism (not shown) such as a flat belt, a round belt, a motor roller, or a magnet. As a result, the transport container 21 placed on the roller conveyor 14 is moved in the transport direction.

[0034] In this way, the roller conveyor 14 is provided to form a transport path that circulates between the partitioned anteroom 11 and the main field 12, allowing workers to perform tasks from planting to harvesting of crops in the anteroom 11 without having to move into the main field 12.

[0035] In other words, workers can efficiently perform tasks such as managing cultivated plants simply by standing or sitting in a designated work area within the anteroom 11, without having to move to the main field 12. Therefore, the burden on workers can be reduced, work efficiency can be increased, and the productivity of plant cultivation can be improved.

[0036] Although not shown in the diagram, the anteroom 11 may be equipped with various automated machinery for work, such as a harvester or an automatic sprayer, instead of a worker. The various automated machinery installed in the anteroom 11 does not need to be moved to the main field 12, so it does not need to be mobile.

[0037] Furthermore, since the number of workers entering the main field 12 can be minimized, the intrusion of pathogens such as bacteria, fungi, and viruses from the outside can be reduced, preventing the cultivated crops from becoming infected with disease.

[0038] Furthermore, there is no need to provide space for workers to move around and perform their tasks within the main field 12. Therefore, the large space within the main field 12 can be effectively utilized as space for plant cultivation, thereby increasing the productivity of the cultivated crops.

[0039] Furthermore, since the anteroom 11 and the main field 12 are separated by a partition sheet 13, the temperature and humidity inside the anteroom 11 can be made comfortable for workers, while the environment inside the main field 12 can be made suitable for the growth of cultivated crops. As a result, the working environment can be improved and work efficiency can be increased, as can cultivation efficiency and growing environment, thereby increasing the productivity of cultivated crops.

[0040] Furthermore, the roller conveyor 14 is equipped with a right-angle direction changer 19 that changes the direction of a horizontally extending linear path by 90 degrees horizontally. The right-angle direction changer 19 has, for example, a direction-changing roller 20 formed for direction changes.

[0041] Various types of direction-changing rollers 20 can be used. For example, the direction-changing roller 20 may have a configuration that includes a stopper roller for stopping the straight movement of the transport container 21, and a direction-changing wheel with a sphere or inclined roller for direction changing embedded on its outer circumference, which moves the transport container 21, whose straight movement has been stopped by the stopper roller, from the straight-line direction to the side.

[0042] Alternatively, the right-angle direction changer 19 may be configured such that, for example, a direction-changing roller 20 angled at 45 degrees is rotatably embedded on the slats of a slat conveyor, allowing the conveying container 21 to change direction.

[0043] Furthermore, the right-angle direction changer 19 may be configured to change the direction of the transport container 21 on the same plane, or it may be configured to move the direction-changing roller 20 up and down to create a step in the height of the transport surface and change the direction of movement of the transport container 21 by 90 degrees. Alternatively, the right-angle direction changer 19 may be configured to have the direction-changing roller 20 provided on a turntable that rotates in the horizontal direction.

[0044] In this way, by providing a right-angle direction changer 19 that changes the direction of the roller conveyor 14 by 90 degrees horizontally, the wasted space required to change the direction of conveyance is reduced, and a larger space can be secured for cultivating crops.

[0045] Another right-angle direction changer 19 is provided along the path of the roller conveyor 14, which has been turned 90 degrees by a right-angle direction changer 19. In other words, at least one pair of right-angle direction changers 19 are provided inside the main field 12.

[0046] As a result, the path of the roller conveyor 14, which has been turned 90 degrees by the right-angle direction changer 19, is turned another 90 degrees by another right-angle direction changer 19. In other words, the transport path of the roller conveyor 14, which is transported in a straight line, is turned 180 degrees by the pair of right-angle direction changers 19, and a pair of straight transport paths 17 are arranged side by side in parallel rows, sending the transport containers 21 in opposite directions.

[0047] In other words, the roller conveyor 14 has at least one pair of straight opposing paths 17 inside the main field 12. Multiple pairs of straight opposing paths 17 may be provided. For example, as shown in Figure 2, in a configuration where two pairs of straight opposing paths 17, i.e., four rows of straight conveying paths, are provided, the two pairs of straight opposing paths 17 are connected by a pair of right-angle direction changers 19 provided near the front chamber 11. Furthermore, three pairs of straight opposing paths 17, i.e., six rows of straight conveying paths, or four pairs of straight opposing paths 17, i.e., eight rows of straight conveying paths, may be formed and connected by right-angle direction changers 19.

[0048] This configuration allows for the optimal arrangement of crops within the main field 12, minimizing empty space. Therefore, the space within the main field 12 can be effectively utilized for cultivating crops.

[0049] Furthermore, the direction change in the right-angle direction changer 19 can cause a difference in the transport speed of the transport containers 21, which may cause the transport containers 21 to jam near the entrance of the right-angle direction changer 19. To reduce such jamming of the transport containers 21, the roller conveyor 14 may be provided with a speed adjustment mechanism that adjusts the transport speed of the transport containers 21 and adjusts the timing of the direction change, for example, 1 to 2 m before the right-angle direction changer 19.

[0050] Furthermore, a transport guide 25 may be provided in the straight opposing path 17 between the transport paths to guide the transport of the transport container 21. The transport guide 25 is formed from, for example, a plate made of synthetic resin, metal, or wood, and is detachably erected near both sides of the roller conveyor 14 so as to extend along the roller conveyor 14.

[0051] More specifically, a transport guide 25 may be erected between the transport paths that send the transport container 21 in the reverse direction, so as to guide the paths of the roller conveyors 14 on both sides with a single transport guide 25.

[0052] By providing such a transport guide 25, the transport containers 21 being sent in opposite directions on the parallel roller conveyors 14 in the straight opposing path 17 can be protected by the transport guide 25 from contacting the roller conveyors 14 and falling off.

[0053] Therefore, the pair of roller conveyors 14 that constitute the straight opposing path 17 can be placed close together, reducing wasted space and making effective use of the space within the main field 12, allowing for safe transport of cultivated crops.

[0054] Furthermore, since the transport guide 25 is removable, if a malfunction occurs in the roller conveyor 14, the transport guide 25 can be removed to easily perform maintenance on the roller conveyor 14.

[0055] The transport guide 25 may also be installed in a work path 18 formed in a straight line within the anteroom 11. This prevents the transport container 21 from falling, etc., even in the work path 18, enabling safe work and transport.

[0056] Furthermore, since the operator can remove the transport guide 25 as needed, efficient work can be performed when attaching or detaching the transport container 21 in the anteroom 11, without the transport guide 25 getting in the way.

[0057] Furthermore, the transport container 21 has a rectangular box shape with an open top, and its longitudinal dimension L1 is greater than the width W1 of the roller conveyor 14. In the straight opposing path 17, the transport container 21 may be placed sideways with respect to the feed direction of the roller conveyor 14 so that it is transported in the shorter direction.

[0058] This configuration allows for the efficient use of the internal space of the main field 12, enabling the placement and transport of numerous transport containers 21 within the main field 12 while maintaining the roller conveyors 14 between them. This makes highly productive plant cultivation possible.

[0059] Furthermore, a work path 18 may be formed in the anteroom 11 of the agricultural greenhouse 10, in which the transport container 21 is placed vertically relative to the feed direction of the roller conveyor 14 so that it is transported in the longitudinal direction. By forming a work path 18 with such a configuration, workers can easily perform management tasks such as planting, watering, disinfecting, fertilizing, and harvesting of cultivated crops, as well as tasks such as attaching and detaching the transport container 21 or cultivation containers (not shown) in the anteroom 11.

[0060] For example, since the transport container 21 is positioned sideways from the worker's perspective, the worker can accurately check each individual plant of the multiple plants planted in a single transport container 21 or cultivation container.

[0061] Furthermore, there may be empty spaces in the transport path of the roller conveyor 14 where no transport containers 21 are placed. For example, at night when workers are not performing any work, the roller conveyor 14 in the anteroom 11, such as the work path 18, may be left as empty spaces where no transport containers 21 are placed. By providing such empty spaces, the cultivated plants will be placed only inside the main field 12. Therefore, by adjusting the temperature and humidity environment to be suitable for cultivation only inside the main field 12, the cultivated plants can be grown optimally.

[0062] Furthermore, in a configuration where the transport container 21 is placed on almost the entire surface of the roller conveyor 14 without leaving any empty space as described above, both the anteroom 11 and the main field 12 may be adjusted to the same temperature and humidity suitable for growing crops, for example, at night or on holidays when workers are not performing their duties.

[0063] Next, examples of modifications to the embodiments will be described in detail with reference to Figures 3 to 5. Components that have the same or similar functions and effects as those in the embodiments already described will be denoted by the same reference numerals, and their descriptions will be omitted.

[0064] Figure 3 is a perspective view showing an example of the bottom surface 22 of a transport container 21 in a plant cultivation system 1 according to another embodiment of the present invention. As shown in Figure 3, the bottom surface 22 of the transport container 21 may be provided with wheels 23 to guide the transport of the transport container 21.

[0065] Specifically, the wheels 23 are provided, for example, near the four corners of the bottom surface 22. The distance L3 between the wheels 23 arranged in the longitudinal direction of the transport container 21 is slightly greater than the width W1 (see Figure 2) of the roller conveyor 14 (see Figure 2).

[0066] As a result, for example, in a straight opposing path 17 (see Figure 2), when the transport container 21 is placed horizontally on the roller conveyor 14 and moved in the shorter direction, the wheels 23 rotate in contact with the side of the rail 15 (see Figure 2) of the roller conveyor 14, guiding the transport of the transport container 21.

[0067] Furthermore, the wheels 23 may be positioned such that the distance L4 in the short-side direction of the transport container 21 is slightly greater than the width W1 of the roller conveyor 14. In this case, the dimension L2 in the short-side direction of the transport container 21 will be greater than the width W1 of the roller conveyor 14. With this configuration, for example, when the transport container 21 is placed vertically on the roller conveyor 14 and moved in the longitudinal direction in a work path 18 (see Figure 2), the wheels 23 can rotate in contact with the side of the rail 15 of the roller conveyor 14, guiding the transport of the transport container 21.

[0068] By providing wheels 23 on the bottom surface 22 of the transport container 21 to guide its transport, it is possible to prevent the transport container 21 from shifting to the left or right in the direction of travel and falling off the roller conveyor 14.

[0069] Furthermore, if such wheels 23 are provided on the bottom surface 22 of the transport container 21, the installation of the transport guide 25 (see Figure 2) that guides the transport of the transport container 21 may be omitted. Even without the transport guide 25, the wheels 23 can prevent contact between transport containers 21 moving in the opposite direction along the straight opposing path 17, and prevent the transport containers 21 from falling, thereby safely guiding the transport of the transport containers 21.

[0070] Figure 4 is a perspective view showing another example of the configuration of the bottom surface 22 of the transport container 21. As shown in Figure 4, the bottom surface 22 of the transport container 21 may be provided with projections 24 to guide the transport of the transport container 21.

[0071] The protrusions 24 are provided, for example, near the four corners of the bottom surface 22, and slidably contact the sides of the rails 15 (see Figure 2) of the roller conveyor 14 (see Figure 2) to guide the transport of the transport container 21. This configuration, with the protrusions 24 provided, also prevents the transport container 21 from shifting to the left or right in the direction of travel and falling off the roller conveyor 14.

[0072] Furthermore, if a projection 24 is provided on the bottom surface 22 of the transport container 21, the installation of a transport guide 25 (see Figure 2) that guides the transport of the transport container 21 may be omitted. Even without the transport guide 25, the projection 24 can safely guide the transport of the transport container 21, preventing contact between transport containers 21 moving in the opposite direction along the straight opposing path 17, and preventing the transport containers 21 from falling.

[0073] Figure 5 is a plan view showing a schematic configuration of a plant cultivation system 1 according to another embodiment of the present invention. In Figure 5, the arrows indicate the direction of airflow from the air conditioner 26.

[0074] Referring to Figure 5, the plant cultivation system 1 may also be equipped with an air conditioner 26 as an air conditioner for cooling or heating the air-conditioned space inside at least one of the anteroom 11 and the main field 12. The air conditioner 26 is, for example, an air conditioner that utilizes a vapor compression type refrigeration cycle and has an indoor unit 27 that sends cool or warm air for air conditioning to the air-conditioned space and an outdoor unit 29 that sends the waste heat of the air conditioning to an area other than the air-conditioned space, such as the outside.

[0075] The indoor unit 27 is installed, for example, inside the main field 12. Alternatively, the indoor unit 27 may be installed inside the anteroom 11. The indoor unit 27 has a heat exchanger (not shown), and blows out air cooled or heated by the heat exchanger from the outlet 28 to the air-conditioned space in the anteroom 11 or the main field 12.

[0076] Here, the indoor unit 27 is installed so that the air cooled or heated by the heat exchanger flows below the roller conveyor 14. Specifically, the indoor unit 27 is installed so that cool or warm air for air conditioning is blown out from the outlet 28, for example, in the direction of the linear opposing path 17, and the cool or warm air blown out from the outlet 28 is sent below the roller conveyor 14.

[0077] As a result, the space below the roller conveyor 14 can be used as an air passage for conditioned air without installing air conditioning ducts or the like inside the main field 12, and cool or warm air can be efficiently supplied to the air-conditioned space far away from the indoor unit 27. Therefore, the temperature and humidity inside the main field 12 or the anteroom 11 can be adjusted to a level suitable for plant growth or agricultural work, and plants can be cultivated efficiently by effectively utilizing the internal space of the main field 12.

[0078] Furthermore, a duct or the like (not shown) may be connected to the air outlet 28 of the indoor unit 27 to send the air cooled or heated by the indoor unit 27 downwards along the linear opposing path 17 of the roller conveyor 14. In addition, a wind direction adjustment device or the like (not shown) may be provided to guide the cold or warm air blown out from the air outlet 28 downwards along the roller conveyor 14.

[0079] Furthermore, the indoor unit 27 may be located outside the agricultural greenhouse 10, and the air for air conditioning may be sent to the bottom of the roller conveyor 14 inside the agricultural greenhouse 10 via ducts or the like (not shown).

[0080] In these various forms of air conditioners 26, by configuring the air conditioning air supplied from the indoor unit 27 to flow along the path of the roller conveyor 14 and below the roller conveyor 14, highly efficient cooling or heating, similar to duct air conditioning, can be achieved.

[0081] It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention. [Explanation of symbols]

[0082] 1: Plant cultivation system 10: Agricultural greenhouses 11: Vestibule 12: Main field 13: Partition Sheet 14: Roller conveyor 15: Rail 16: Laura 17: Straight opposing route 18: Work route 19: Right-angle direction change machine 20: Roller for changing direction 21: Transport container 22: Bottom 23 :Wheel 24: Protrusion 25: Transport Guide 26:Air conditioner 27: Indoor unit 28:Air outlet 29:Outdoor unit

Claims

1. The anteroom where the management work for the cultivated plants is carried out, The aforementioned anteroom is a partitioned space, and the main field is where the crops planted in the anteroom are moved and grown. The system comprises a roller conveyor for transporting containers containing the aforementioned cultivated products, A plant cultivation system characterized in that the roller conveyor is provided to form a transport path that circulates between the pre-chamber and the main field.

2. The plant cultivation system according to claim 1, characterized in that the roller conveyor has a right-angle direction changing machine that changes the direction of a straight path extending horizontally by 90 degrees horizontally.

3. The plant cultivation system according to claim 1 or 2, characterized in that the roller conveyor has parallel linear opposing paths arranged in parallel rows of at least one pair of linear paths that send the transport containers in opposite directions to each other.

4. The plant cultivation system according to claim 3, characterized in that the linear opposing paths are provided with removable transport guides that are provided between the paths to guide the transport of the transport containers.

5. The transport container has a rectangular box shape with an open top, and its longitudinal dimension is larger than the width of the roller conveyor. The plant cultivation system according to claim 3, characterized in that, in the aforementioned straight opposing path, the transport container is placed sideways with respect to the feed direction of the roller conveyor so as to be transported in the shorter direction.

6. The plant cultivation system according to claim 5, characterized in that a work path is formed in the front chamber, in which the transport container is placed vertically with respect to the feed direction of the roller conveyor so that it is transported in the longitudinal direction.

7. The facility is equipped with an air conditioner for cooling or heating at least one of the aforementioned anteroom and the aforementioned main field. The plant cultivation system according to claim 1 or 2, characterized in that the indoor unit of the air conditioner is arranged to send cooled or heated air below the roller conveyor.

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