JP7287646B2 - Plant cultivation device and plant manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a plant cultivation apparatus and a plant manufacturing method for continuously cultivating plants such as crops.

A plant cultivation apparatus that continuously cultivates crops in a building is known. Plant cultivation equipment is used in a form of cultivation called a crop factory, where artificial lighting is used to give appropriate sunlight to the crops, and the temperature and humidity inside the building and indoors are maintained at a suitable temperature and humidity for growing crops. It is a device that

With this type of plant cultivation apparatus, crops can be grown in an environment in which sunlight, temperature, moisture, fertilizer concentration, etc. are appropriately controlled, so the period required for harvesting is shorter than in outdoor cultivation.
In addition, many of the plant cultivation apparatuses grow crops by hydroponics, which is cleaner than open-field cultivation. Furthermore, since the crops are grown indoors, pests do not come into contact with them, and crops can be cultivated without the use of pesticides. Therefore, the plant cultivation apparatus is suitable for cultivating vegetables that can be eaten without peeling, such as lettuce.

The applicant of the present application has proposed a plant cultivation apparatus disclosed in Patent Document 1 as such a plant cultivation apparatus.

A plant cultivation apparatus disclosed in Patent Document 1 cultivates plants in a series of cylindrical spaces. A plant cultivation apparatus disclosed in Patent Document 1 uses a cultivation tray that stores a culture solution. Then, the cultivation tray is installed in the cylindrical space and moved toward the tray outlet, during which the plant planted on the cultivation tray is allowed to grow.

In the plant cultivation device disclosed in Patent Document 1, a conveying device driven by power is installed in a cylindrical space.
The transport device described above has a plurality of tray engaging portions. In the plant cultivation apparatus disclosed in Patent Document 1, the tray engaging portion is engaged with each cultivation tray, and in this state, the tray engaging portion linearly moves within the cylindrical space.
Each cultivation tray in the tubular space is pushed and moved one by one by the tray engaging portion that engages with each other.

Retable 2016-129674

According to the conveying device employed in the conventional plant cultivation device, the cultivation tray can be moved smoothly.
However, the plant cultivating apparatus of the prior art has a member to be driven in the cylindrical space, and there is a drawback that maintenance is time-consuming.
In addition, there was also a dissatisfaction that the conventional plant cultivation apparatus had a large number of parts.

An object of the present invention is to address the above-described problems of the prior art, and to provide a plant cultivation apparatus that is easy to maintain and has a small number of parts.

A mode for solving the above-described problems includes a cultivation space having a tray inlet and a tray outlet; It has a nutrient solution control means that supplies the culture solution and flows out the culture solution discharged from the cultivation tray to a predetermined position outside, introduces the cultivation tray from the tray inlet, and moves the cultivation tray to the tray outlet in the cultivation space. A plant cultivating apparatus for moving the cultivating tray toward the cultivating space, carrying out the cultivating tray from the tray carrying-out port, and growing the plant planted in the cultivating tray in the meantime, wherein a plurality of roller members are installed in the cultivating space, and the cultivating tray is A plant characterized in that a new cultivation tray placed on the roller member and carried into the cultivation space through the tray carry-in opening pushes the cultivation tray that has already been brought in to the tray carry-out opening side. Cultivation equipment.

In the plant cultivating apparatus of this aspect, the cultivating tray is placed on the idling roller member in the cultivating space. Therefore, the cultivation tray can be pushed with a light force.
In the plant cultivating apparatus of this aspect, the new cultivating tray pushes the cultivating tray on the tray inlet side, and the cultivating tray adjacent downstream is pushed by the upstream cultivating tray. In this way, each cultivation tray moves downstream one by one.

Another aspect for solving a similar problem is a cultivation space having a tray carry-in port and a tray carry-out port, a plurality of cultivation trays formed with storage tanks for storing the culture solution inside, and a cultivation tray in the cultivation space. and has a nutrient solution control means for flowing out the culture solution discharged from the cultivation tray to a predetermined position outside; A plant cultivating device for moving the cultivating tray toward the cultivating tray, unloading the cultivating tray from the tray unloading port, and growing a plant planted in the cultivating tray in the meantime, wherein a plurality of roller members are installed in the cultivating space, and the cultivating tray is is placed on the roller member, and by forcibly moving one cultivation tray, all cultivation trays in the cultivation space are pushed toward the tray outlet side. .

In the plant cultivating apparatus of this aspect, the cultivating tray is placed on the idling roller member in the cultivating space. Therefore, the cultivation tray can be pushed and moved with a light force.
By pushing one cultivation tray, the cultivation tray adjacent downstream is pushed by the upstream cultivation tray. In this way, all cultivation trays in the cultivation space are sequentially moved to the tray outlet side.

Each of the above-described aspects has a tray moving device that moves the cultivation tray, and the tray moving device can partially or wholly enter the cultivation space and push the cultivation tray deeper than the tray entrance. It should be possible.

In each of the above-described aspects, the tray moving device has a roller row in which roller members are arranged, the roller row is arranged in parallel with an interval in the cultivation space, and the tray moving device moves the cultivation tray. It is desirable that part or all of the rollers can enter between the rows of rollers and be able to move.

According to this aspect, part or all of the tray moving device can enter the cultivation space.

In each of the above-described aspects, it is desirable to have a tray moving device for moving the cultivation tray, and to have the cultivation tray on the tray inlet side.

According to this aspect, since the driving device for moving the cultivation tray is located outside the cultivation space or near the tray inlet, maintenance is easy.

In each of the above-described aspects, it is desirable to have a tray moving device for moving the cultivation tray, and for the tray moving device to have a placement section on which the cultivation tray is placed and a moving means for moving the cultivation tray.

In the tray moving device of this aspect, the cultivation tray can be placed on the placing section, and the cultivation tray can be pushed into the cultivation space by the moving means.

In each of the above-described aspects, a tray moving device for moving the cultivation tray is provided, the tray moving device has a moving member capable of moving a certain distance, and pressing pieces that contact the cultivation tray at a plurality of positions of the moving member. is provided, and it is desirable to selectively use the pressing piece to move the cultivation tray.

According to this aspect, it is possible to use the pressing piece at an appropriate position depending on the application.

In each of the above-described aspects, a tray moving device for moving the cultivation tray is provided, and the tray moving device includes a moving member provided with a pressing piece that can move a certain distance and contacts the cultivation tray, and a cultivation tray. It is desirable to have a conveyor device for moving the cultivation tray placed thereon, and to move the cultivation tray by synchronously driving the moving member and the conveyor device.

According to this aspect, the cultivation tray can be moved by both the pressing by the pressing piece and the movement by the conveyor device.

In each aspect described above, it is desirable that a new cultivation tray be pushed into the cultivation space by the tray moving device.

In each of the above-described modes, a new cultivation tray is carried into the cultivation space from the tray carry-in port, the cultivation tray already brought in is pushed toward the tray carry-out port, and the first cultivation tray is pushed out from the tray carry-out port. It is desirable to be able to

In each aspect described above, it is desirable that 20 or more cultivation trays are arranged in series in the cultivation space, and all the cultivation trays in the cultivation space move.

A plant manufacturing method that solves a similar problem is to install a plurality of cultivation trays having a storage tank for storing a culture solution inside a cultivation space having a tray inlet and a tray outlet, and A plant cultivation method for supplying a culture solution to the cultivation tray, moving the cultivation tray toward the tray outlet, carrying out the cultivation tray from the tray outlet, and growing a plant planted on the cultivation tray in the meantime. It is characterized by pushing the already carried-in cultivation tray to the tray carry-out side by carrying the cultivation tray into the cultivation space from the tray carry-in port.

According to this method, plants can be efficiently produced.

The plant cultivation apparatus of the present invention is easy to maintain and has a small number of parts.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the plant cultivation apparatus which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows the cultivation installation of FIG. 1 typically, and shows an inside transparently. It is a front view which shows the inside of the cultivation equipment of FIG. (a) is a perspective view showing the first air stirring means of FIG. 2, and (b) is a cross-sectional view schematically showing the first air stirring means. FIG. 3 is an exploded perspective view showing the first air agitating means of FIG. 2; FIG. 3 is a perspective view schematically showing the periphery of the first air stirring means of FIG. 2; FIG. 7 is an explanatory view showing a mounting structure of the first air stirring means of FIG. 6; (a) is a perspective view showing the second air stirring means in FIG. 2, and (b) is a cross-sectional perspective view showing the vicinity of the suction/discharge port of the cylindrical member, showing a state in which the air volume adjusting means is removed. show. FIG. 9 is a cross-sectional view showing the second air stirring means of FIG. 8, (a) with the suction/discharge port fully open, (b) with the suction/discharge port partially closed, and (c) with the suction/discharge port fully closed. state respectively. 3 is a perspective view schematically showing how plants are grown in the cultivation facility of FIG. 2. FIG. It is explanatory drawing which shows typically a mode that the plant is grown with the cultivation installation of FIG. (a) is a perspective view schematically showing the main part of a cultivation facility according to an embodiment different from that of FIG. 2, and (b) is a perspective view of a first air stirring means attached to the cultivation facility of (a). is. In a cultivation facility according to an embodiment different from the above, FIG. Show action. FIG. 7 is a perspective view showing how a wind direction changing member is attached to the first air stirring means shown in FIG. 6 , and (a) and (b) show how different wind direction changing members are attached. It is explanatory drawing which shows a mode that the solar panel was attached with respect to the side wall member of the cultivation equipment of FIG. It is explanatory drawing which shows typically the state which distribute|arranged the plant cultivation apparatus of FIG. 1 in a structure, and also distribute|arranged the heat insulating member around a shelf member. BRIEF DESCRIPTION OF THE DRAWINGS It is a partially broken perspective view of the plant cultivation apparatus of embodiment of this invention. It is an exploded perspective view of a cultivation tray. 1 is a perspective view of a tray moving device and a tray loading port of a cultivation space employed in an embodiment of the present invention, (a) showing a state where the pushing plate is outside the cultivation space, and (b) showing the pushing plate positioned outside the cultivation space. Shows the state inside. It is an exploded perspective view of a tray moving device. FIG. 4 is a perspective view showing the state of the pressing pieces of the tray moving device, (a) showing a state in which the front-row pressing piece and the intermediate-row pressing piece are in a horizontal posture, and (b) in which the front-row pressing piece is in a standing posture; (c) shows a state in which the intermediate row pressing pieces are in a horizontal posture, and (c) shows a state in which the front row pressing pieces are in a horizontal posture and the intermediate row pressing pieces are in a standing posture. (a), (b), and (c) are explanatory diagrams showing the operation of the plant cultivation apparatus, showing a state in which a new cultivation tray is carried into an empty space in the cultivation space by the tray moving apparatus. (a), (b), and (c) are explanatory diagrams showing the operation of the plant cultivation apparatus, and when a new cultivation tray is carried into the cultivation space by the tray moving device and the cultivation tray inside is pushed out from the tray outlet. Indicates status. (a), (b), and (c) are explanatory diagrams showing the operation of the plant cultivation device, showing a state in which the cultivation tray in the cultivation space is pushed by the tray moving device. (a), (b), (c), and (d) are explanatory diagrams showing other operations of the plant cultivation apparatus, showing a state in which a new cultivation tray is carried into an empty space in the cultivation space by the tray moving apparatus. .

Hereinafter, although the plant cultivation device 1 according to each embodiment of the present invention will be described in detail with reference to the drawings, the present invention is not limited to these examples. In the following description, the vertical direction and the longitudinal direction are based on the state shown in FIG. 1 unless otherwise specified.

A plant cultivation apparatus 1 according to an embodiment of the present invention is formed by attaching a cultivation facility 3 to a shelf member 2 as shown in FIG.
Specifically, the plant cultivation device 1 includes a plurality (two) of shelf members 2, which are horizontally spaced apart from each other. Each shelf member 2 can have a plurality of (four) cultivation facilities 3 vertically arranged, one on each stage. That is, the plant cultivation apparatus 1 is formed by sterically arranging the cultivation facilities 3 in a plurality of stages and in a plurality of rows. In the present embodiment, the cultivation facilities 3 are formed by stacking the cultivation facilities 3 in four stages and two rows.

The shelf member 2 includes a plurality of vertically extending vertical bar members 2a and a plurality of vertically arranged shelf plate members 2b, which are combined together.
That is, this shelf member 2 is capable of placing and fixing the cultivation equipment 3 on each shelf member 2b.

As shown in FIG. 2, the cultivation facility 3 is a connecting structure formed by connecting a plurality of cell members 3a forming each part in the longitudinal direction of the cultivation facility 3, and is a series of cylindrical cells extending in the horizontal direction. It is a member. Therefore, a cultivation space 7, which is a horizontally extending cylindrical space, is formed inside the cultivation facility 3. As shown in FIG.

As shown in FIG. 2, the cultivation facility 3 has a flat plate-like bottom member 10, an upright plate-like side wall member 11, and a roof member 12, which are connected together. .
Therefore, the cultivation space 7 is a space formed on the upper side of the bottom member 10 , and is a space covered on both lateral sides by the side wall members 11 and on the upper side by the roof member 12 .
The cultivation equipment 3 carries a cultivation tray 13 on which plants are planted into the cultivation space 7, and grows the plants while moving the cultivation tray 13 inside the cultivation space 7 (details will be described later). .

A reflective sheet (not shown) such as an aluminum sheet is attached to the inner surface of the side wall member 11 to improve light reflectivity.

The roof member 12 is a member that curves and extends so as to have an arcuate cross-sectional shape, and is made of a material such as stainless steel that is resistant to rust and has excellent thermal conductivity. Specifically, the roof member 12 has a top panel member 12a and beam members 12b (see FIG. 6) that support the top panel member. All of these are curved so that the central side in the short direction of the cultivation facility 3 is at the highest position and both end sides are at the lowest position. That is, the beam member 12b extends across the cultivation facility 3, and extends curvedly so that the center side in the extending direction is at the highest position.

The roof member 12 is provided with an illumination substrate (illumination means) (not shown) on the inner surface thereof. This lighting board has a large number of LEDs attached as light emitting elements to a thin resin board.
In addition, the distribution of the light emitting elements provided on the inner surface of the roof member 12 is not uniform, and the arrangement density at the top side portion (the top portion and its periphery) of the top surface is surroundings). That is, the lower portion has a structure in which the LEDs are denser than the upper portion (a structure in which the number of LEDs per unit area is large). As a result, the structure is such that there is no difference (no large difference) between the amount of light irradiated to the central side in the short direction of the cultivation equipment 3 and the amount of light irradiated to the same end side.

The cultivation tray 13 is formed with a storage tank for storing the culture solution inside, and is a member capable of temporarily storing the culture solution. Moreover, it has a plant holder attached so as to cover the storage tank, and can hold a plurality of plants to be grown in a matrix.

Here, inside the cultivation facility 3, as shown in FIGS. 2 and 3, a conveying device 20 for moving the cultivation tray 13 is formed. Furthermore, inside the cultivation facility 3, there are a first air agitating means 25 (air agitating means) for agitating the air in the cultivation space 7 to adjust the humidity, and a plurality of (two) second air agitating means 26. , a plurality of third air stirring means 27 are formed.
Further, inside the cultivation equipment 3, a nutrient solution control means (Figs. 1, 2 and 3 shows not shown) are provided.
For convenience of drawing, only a part of the third air stirring means 27 (an impeller 27a to be described later) is given a reference numeral, and the other reference numerals are omitted.

The conveying device 20 is formed by arranging a plurality of roller conveyors 30 in parallel at intervals in the lateral direction of the cultivation facility 3. In this embodiment, two roller conveyors 30 forming a pair are provided. They are arranged side by side with a space between them.

The roller conveyor 30 has a frame member extending in the longitudinal direction of the cultivation facility 3 and a plurality of roller members attached to this frame member.
Specifically, the frame member has two side wall portions extending parallel to each other, and a plurality of roller members are rotatably held on the side wall portions.
At this time, each roller member is attached to the side wall portion via the shaft member, and the axial direction of the rotating shaft (longitudinal direction of the shaft member) is the same as the lateral direction of the cultivation equipment 3. there is
That is, in the roller conveyor 30, a plurality of roller members are arranged in parallel in the longitudinal direction of the frame member, and the rollers of each roller member can be rotated separately.

The first air stirring means 25 is a so-called cross-flow fan (or line-flow fan, cross-flow fan), and has an outer shell member 35, an impeller 36, and a motor member 37, as shown in FIG.

The outer shell member 35 is formed by attaching a blade member 44 to a box-shaped main body portion 43 whose outer shape is a substantially horizontally elongated rectangular parallelepiped.

As shown in FIG. 4, the main body portion 43 includes an upper plate member 50, an upright back plate member 51 positioned at one end in the width direction, two side wall members 52, and a lower plate member 53. have.
The upper plate member 50 is a substantially rectangular plate-shaped portion positioned above the main body portion 43 , and the back plate member 51 is a vertical plate-shaped portion positioned on one side of the main body portion 43 .
The portion of the upper plate member 50 on one side in the transverse direction and the upper end portion of the back plate member 51 are continuous, and the portion positioned between them extends while curving. That is, the portion forming the corner portion between the upper plate member 50 and the back plate member 51 is curved downward toward the end portion side in the lateral direction of the main body portion 43 .

The side wall member 52 is a thick upright plate-like portion positioned at the end in the longitudinal direction. The inner side surfaces of the two side wall members 52 are opposed to each other with a gap therebetween, and the inner side surfaces of the two side wall members 52 and the longitudinal ends of the upper plate member 50 and the back plate member 51 are integrally connected to each other.

The lower plate member 53 is a plate-like portion projecting outward from the lower end portion of the back plate member 51 and is positioned below the curved portion positioned between the upper plate member 50 and the back plate member 51 .

Here, the upper plate member 50, the back plate member 51, and the lower plate member 53 form a series of plate-like portions extending while curving and bending. The space surrounded by these and the two side wall members 52 is a space in which one side in the short direction and most of the lower side are open, and an impeller arrangement space 54 in which the impeller 36 is arranged. It's becoming

The wing plate member 44 is attached to the side of the impeller arrangement space 54 and in the vicinity of the open portion located on the one end side in the short direction of the main body portion 43. Specifically, it is arranged in the upper portion. It is
In this embodiment, a plurality (two) of wing plate members 44 are arranged in parallel with a gap in the vertical direction, and each wing plate member 44 is a flat plate-like portion attached in an inclined posture. It's becoming That is, the upper surface and the lower surface of each of the main body portions 43 are slanted surfaces, and are slanted downward toward the outside in the lateral direction of the main body portion 43 .

The impeller 36 is a member having a substantially cylindrical shape, and as shown in FIG. It has three (3) partitions 36c.
For convenience of drawing, only some of the blade members 36b are given reference numerals, and the reference numerals for the others are omitted.

The end plate portion 36 a is a substantially disk-shaped member arranged at a position close to the side wall member 52 and erected so that its thickness direction is the same as the longitudinal direction of the impeller 36 . Each of the two end plate portions 36a is connected to the adjacent side wall member 52 via a shaft member (not shown).

The plurality of blade members 36b are arranged in parallel along the circumferential direction around the rotation axis of the impeller 36 so as to be evenly spaced. That is, a gap is formed between the two blade members 36b that are arranged adjacent to each other. As shown in FIG. 4(b), each blade member 36b is a plate-like body that curves so that its cross-sectional shape is a gentle arc. Specifically, the cross-sectional shape of the blade member 36b is a shape curved like a mountain so that the center side in the short direction is the top.

As shown in FIG. 5, the partition part 36c is arranged in the middle part in the longitudinal direction of the impeller 36, and is a part for supporting the blade member 36b. That is, the blade member 36b is arranged between the end plate portion 36a and the partition portion 36c, or between two partition portions 36c, thereby supporting both ends in the longitudinal direction.
That is, the impeller 36 is partitioned into a plurality of (four in this embodiment) regions by the partitions 36c, and the blade members 36b are arranged in parallel in the circumferential direction in each region.

The motor member 37 has a motor that generates the power required to rotate the impeller 36 and a casing member that incorporates the motor. Although illustration is omitted, a wiring member for supplying power to the motor extends inside and outside the casing member, and extends to an external power supply means (not shown).
In this embodiment, a casing member containing a motor is integrally formed with the outer shell member 35 .

From the above, in the first air stirring means 25, as shown in FIG. The upper plate member 50 covers it. Similarly, a back plate member 51 is positioned away from the impeller 36 on one side of the body portion 43 in the short direction to cover the side of the impeller 36 , and a lower plate member 53 is positioned below the impeller 36 . It covers part of the sides.

The first air stirring means 25 takes in air from a direction perpendicular to the axial direction of the impeller 36 and blows air in a direction perpendicular to the axial direction.
From these facts, when the first air stirring means 25 is operated, as shown in FIG. (also referred to as mouth portion 57).
In the following, the blow port 57 side of the first air stirring means 25 will be described as the front side of the first air stirring means 25 , and the back plate member 51 side will be described as the rear side of the first air stirring means 25 .

That is, when the first air stirring means 25 is operated, an air current is formed from the rear side of the first air stirring means 25 (the left side in FIG. 4(b)) toward the lower side of the first air stirring means 25. As shown in FIG.
Also, an air current directed upward from the lower side of the first air stirring means 25, and an air current flowing upward from the lower side of the first air stirring means 25 relatively forward (right side in FIG. 4(b)). An air current is formed.
That is, the air taken in when the first air stirring means 25 is in operation flows as described above.

Then, an air flow is formed from the inside of the first air stirring means 25 to the outside, and the air is blown.
That is, an air flow that flows forward from the impeller 36 and an air flow that flows upward from the impeller 36 and then flows forward along the upper plate member 50 are formed.
Further, an air flow is formed that flows forward from the impeller 36, is changed in direction downward by the blade member 44, and then flows forward again.

That is, the first air stirring means 25 mainly blows air outward from the air blowing port 57, and the main blowing direction is the same as the lateral direction of the first air stirring means 25. .

The first air stirring means 25 of this embodiment is fixed to the beam member 12b of the roof member 12 via two fixing metal fittings 65, as shown in FIGS.

As shown in FIG. 7, the fixing metal fitting 65 is a member in which a fixing piece portion 65a bent into a hat shape and a vertical supporting plate portion 65b are integrated.
That is, the fixed piece portion 65a has two flat plate-like portions and a beam engaging portion 69 projecting upward between the two flat plate-like portions. The beam engaging portion 69 is formed by integrating two upright plate-like portions and a flat plate-like portion connecting the upper end portions thereof.
The side support plate portion 65b is a portion formed by bending one flat portion of the fixed piece portion 65a downward.

That is, as shown in FIGS. 6 and 7, the fixing metal fitting 65 has the flat plate portion of the fixing piece portion 65a in contact with the upper surface of the side wall member 52, and the side attachment plate portion 65b on the rear side of the side wall member 52. It is fixed integrally with the first air stirring means 25 while being in contact with the surface.
At this time, a part of the beam member 12b is located above the upper surface of the side wall member 52 and is surrounded by the beam engaging portion 69 on three sides, so that the first air agitating means 25 is moved inside the cultivation equipment 3. is fixed to

As shown in FIG. 8, the second air agitating means 26 includes a tubular member 70 made of resin, a plurality of air volume adjusting means 71 provided around the tubular member 70, and built in the tubular member 70. and a small air blower 72.

The tubular member 70 is a member having a cylindrical outer shape, and a logarithm of suction/discharge ports 75 penetrating inside and outside is formed on the outer peripheral surface of the tubular member 70 . The suction/discharge ports 75 are formed in each part so as to be arranged side by side at intervals in the longitudinal direction of the cylindrical member 70 .

The air volume adjusting means 71 is a member obtained by cutting a cylindrical member having a diameter larger than that of the cylindrical member 70 and forming a slit 77, and is a member having a substantially "C"-shaped cross section.
The air volume adjusting means 71 is a part of the cylindrical member 70 and is fitted around the portion in which the suction/discharge port 75 is formed in the circumferential direction. The cylindrical member 70 is freely rotatable in the circumferential direction.

That is, as shown in FIG. 9, by rotating the air volume adjusting means 71, the opening degree of the suction/discharge port 75 can be adjusted. For example, as shown in FIG. 9A, by aligning the suction/discharge port 75 with the slit 77 so that the suction/discharge port 75 is not covered with the air volume adjustment means 71, the opening degree of the suction/discharge port 75 can be adjusted. It can be 100 percent.
Further, as shown in FIG. 9B, by partially covering the suction/discharge port 75 with the air volume adjusting means 71, it is possible to reduce the substantial opening area of the suction/discharge port 75. . Furthermore, as shown in FIG. 9C, the suction/discharge port 75 can be closed by covering the entire region of the suction/discharge port 75 with the air volume adjusting means 71 from the outside.

The small blower 72 is an axial fan and has a structure including a motor 72a and a propeller-type impeller 72b. The motor 72a is a direct-current motor or the like, which can be controlled to appropriately change the number of revolutions.

As shown in FIG. 3, the second air stirring means 26 is provided near the upper end of the side wall member 11 and near the roof member 12 (top plate member 12a).
Specifically, a total of two second air stirring means 26 are installed at positions apart from each other in the lateral direction of the cultivation facility 3 so as to extend parallel to each other (see FIG. 2). ing. Each second air stirring means 26 extends along the longitudinal direction of the cultivation equipment 3 .

The second air agitating means 26 is a blowing device that sucks air from a part of the plurality of suction/discharge ports 75 and discharges the air to the outside from the other part.
Therefore, the second air agitating means 26 blows air outward from some of the suction/discharge ports 75 so that the lateral direction of the cultivation equipment 3 (the direction across the cultivation equipment 3) is the air blowing direction. I do. That is, an air current flowing in the lateral direction of the cultivation space 7 is formed above the cultivation space 7 .

As shown in FIG. 2, the third air agitating means 27 is a so-called axial fan provided on the bottom member 10, and is composed of a motor (not shown) and a propeller-type impeller 27a. The impeller 27a is fixed to the output shaft of the motor, and rotates as the motor rotates.
In this embodiment, the motor of the third air stirring means 27 is installed outside the cultivation space 7 and the impeller 27a is located inside the cultivation space 7 and near the bottom member 10 .
Therefore, the impeller 27a rotates in the vicinity of the bottom member 10 by rotating the motor.
In this embodiment, the impellers 27a are arranged in the spaces formed between the two roller conveyors 30, and the plurality of impellers 27a are arranged in parallel in the longitudinal direction of the cultivation space 7 at regular intervals. It is
The third air agitating means 27 forms an airflow that flows along the vertical direction, and more specifically, is a blower that forms an airflow that flows from the lower side to the upper side.

Next, the operation of each part when growing a plant by the cultivation equipment 3 of the present embodiment will be described.

Specifically, in the cultivation equipment 3, as shown in FIG. 2, the opening located at one end in the longitudinal direction serves as a tray loading port 85 (loading port) for loading a new cultivation tray 13. It's becoming On the contrary, the opening on the other end side serves as a tray outlet 86 (outlet) for taking out the cultivation tray 13 .

That is, in the cultivation facility 3, the cultivation tray 13 is carried in from the tray carry-in port 85 and moved to the tray carry-out port 86 over a predetermined number of days (about 10 to 30 days). Accordingly, as the growth of the plant planted on the cultivation tray 13 progresses, the cultivation tray 13 moves toward the tray carry-out port 86 side.

Specifically, when moving the carried-in cultivation tray 13, a new cultivation tray 13 is brought in from the tray carry-in port 85, and the already-carried-in cultivation tray 13 is moved to the tray carry-out port 86 side by the new cultivation tray 13. Push and move (see Figure 10).
That is, the cultivation tray 13 is placed on the conveying device 20 (two roller conveyors 30) and stored inside the cultivation space 7 (see FIG. 11), and is pushed toward the tray outlet 86 side. , moves to the tray outlet 86 side.
For convenience of drawing, only a part of the cultivation tray 13 is given a reference numeral, and the reference numerals for the rest are omitted.

Therefore, as shown in FIGS. 10 and 11, this cultivation facility 3 is operated with a plurality of cultivation trays 13 accommodated therein.
At this time, the plurality of cultivation trays 13 are arranged in parallel in the longitudinal direction of the cultivation equipment 3, and the plants held on the cultivation trays 13 arranged on the tray carry-in port 85 side are arranged on the tray carry-out port 86 side. The growth is less advanced than the plants held on the cultivated tray 13 .
In other words, the plants held on the cultivation tray 13 arranged on the side of the tray carry-out port 86 are taller plants, plants with more leaves, and plants with wider leaves.

Therefore, in the cultivation facility 3, the height of the roof member 12 located on the tray carry-out port 86 side is higher than the height of the roof member 12 located on the tray carry-in port 85 side.
Therefore, in the cultivation space 7 as well, the carry-out side portion adjacent to the tray carry-out port 86 is wider in the vertical direction than the carry-in side portion adjacent to the tray carry-in port 85 . In the portion positioned between them, there is positioned a portion that is vertically wider than the carry-in side portion and vertically narrower than the carry-out side portion. That is, the ceiling portion of the cultivation space 7 also has a higher position on the side of the tray outlet 86 than on the side of the tray inlet 85 .

Here, the cultivation equipment 3 is capable of executing various operations that encourage plant growth, one of which is a light/dark switching operation for switching between a light period and a dark period.
That is, the cultivation equipment 3 of this embodiment can adjust the amount of light emitted from the lighting board attached to the roof member 12 described above. Specifically, it is possible to switch between a state in which light is emitted with a large amount of light (light period) and a state in which light is not emitted (or light is emitted with a reduced amount of light) (dark period). . That is, it is possible to form an artificial day-night cycle.

As another operation, the above-described nutrient solution control means (not shown) supplies the culture solution to the cultivation tray 13 and causes the culture solution discharged from the cultivation tray 13 to flow out to a predetermined position outside. operation is possible.

In addition, at least one air stirring means selected from the first air stirring means 25, the plurality of second air stirring means 26, and the plurality of third air stirring means 27 is operated to stir the air in the cultivation space 7. It is possible to perform an air agitation operation.

Here, in the cultivation equipment 3 of the above-described embodiment, as shown in FIG. 11, when the overall length of the cultivation equipment 3 is L1 and the quarter length is L2, the first air agitation The means 25 is fixed at a position separated from the tray inlet 85 by about L2.
That is, the first air agitating means 25 is fixed so that the center position of the first air agitating means 25 in the lateral direction is located at a distance of about L2 from the tray inlet 85 .

More specifically, the first air agitating means 25 is fixed in the vicinity of the ceiling of the cultivation space 7 and close to the upper side. At this time, the first air agitating means 25 is in a posture in which the longitudinal direction (width direction) of the first air agitating means 25 is the same as the lateral direction of the cultivation equipment 3, and the air blowing port portion 57 is positioned at the tray outlet 86. It is mounted in a sideways position.

Therefore, when the first air agitating means 25 is operated, an air current is generated inside the cultivation space 7 from a position below the tray inlet 85 toward the lower side of the first air agitating means 25 .
As a result, an air current is generated from the surroundings of relatively slow-growing plants located on the tray inlet 85 side and the space above them toward the tray outlet 86 side.

In addition, an air flow directed from the lower side of the first air stirring means 25 to the first air stirring means 25 side and an air flow directed to the first air stirring means 25 from the lower side slightly ahead of the first air stirring means 25 are formed. be done.

Further, an air current is formed from the air blow port portion 57 of the first air stirring means 25 toward the tray outlet 86 side.
That is, since the blower port portion 57 and the upper portion of the tray outlet 86 face each other in the longitudinal direction of the cultivation equipment 3 with a gap therebetween, an air current flowing from the blower port portion 57 along the longitudinal direction of the cultivation equipment 3 is formed. be done. In other words, an air current that flows above the plants and a part of which flows along the inner surface of the roof member 12 is formed.

In the above-described embodiment, the first air stirring means 25 is attached so that the width direction (longitudinal direction) is the same as the lateral direction of the cultivation facility 3, but the present invention is not limited to this.
For example, the first air agitating means 25 may be attached so that the width direction (longitudinal direction) intersects the longitudinal direction and the vertical direction of the cultivation equipment 3 . That is, it is sufficient to form an air current that flows along the longitudinal direction of the cultivation facility 3 .

Further, in the above-described embodiment, the first air stirring means 25 is attached so that the blower port 57 is positioned higher than the most grown plant, but the present invention is not limited to this.
The first air agitating means 25 may be attached at a lower position so that the lower end portion of the air blowing port portion 57 is located below the top end of the most grown plant. That is, the plants positioned close to the first air agitating means 25 are not directly exposed to the air blown from the air blowing port 57, and the air is formed so that only the upper side of some of the plants is directly exposed to the air. good too.

In the embodiment described above, an example in which the first air stirring means 25 is attached at a predetermined attachment position (specified position) has been shown. However, the present invention is not limited to this.
For example, as in the cultivation equipment 103 shown in FIG. 12 , the first air agitating means 125 (air agitating means) may be configured to be slidable in the longitudinal direction of the cultivation space 7 .

That is, the cultivation facility 103 of this embodiment has a driving mechanism 107 (driving means) that slides the first air stirring means 125 .
The drive mechanism 107 includes two support rail portions 108 that form a pair. These two support rail portions 108 support the first air stirring means 125 at two different locations in the longitudinal direction.

The support rail portion 108 has a belt member 109 , an attachment piece (not shown) attached to a portion of the belt member 109 , and a belt rotation member 110 for rotating the belt member 109 .

The belt member 109 is continuous in an annular shape, and a part of the first air stirring means 125 is fixed to a part of the belt member 109 via an attachment piece. Specifically, the portion near the end in the longitudinal direction of the first air stirring means 125 is fixed.

The belt rotating member 110 has a plurality of (two in this embodiment) pulleys forming a set and a drive source such as a motor (not shown). At least one of the pulleys rotates when the drive source operates. Here, the belt member 109 is wound around a plurality of pulleys, and the belt member 109 runs by rotating at least one of the pulleys. As a result, the fixed piece moves along the longitudinal direction of the cultivation space 7, and as a result, the first air stirring means 125 moves in the same direction.

In the above-described embodiment, each of the two support rail portions 108 has a drive source. .
In this case, the pulley of one support rail portion 108 and the pulley of the other support rail portion 108 may be connected by a shaft member or the like so that the rotation of one causes the other to rotate.
The drive source is not limited to a motor, and may be a known motorized roller or the like as long as it can supply power to move the first air stirring means 125 . Moreover, this drive source may be provided inside the cultivation space 7 or may be provided outside.

Further, the first air stirring means 125 of this embodiment differs from the first air stirring means 25 described above in that it has an attitude changing means 150 .
Specifically, the first air stirring means 125 is formed by attaching a posture changing means 150 to the first air stirring means 25 described above.

The posture changing means 150 rotates the entire first air stirring means 25 around a rotating shaft extending in the same direction as the longitudinal direction of the first air stirring means 25 .
The posture changing means 150 has a motor portion 150a that generates power, and a connecting portion 150b that is fixed to a portion of the first air stirring means 25 and rotates when the motor portion 150a operates. By rotating the connecting portion 150b, the entire first air stirring means 25 is configured to rotate.

In the above-described embodiment, an example in which the entire first air agitating means 25 is rotated has been described, but the present invention is not limited to this, and for example, a structure in which only the outer shell member 35 is rotated. good too. That is, by rotating a part of the first air stirring means 25, the orientation of the air blowing port portion 57 can be changed, and the air blowing direction can be changed.

Further, in the above-described embodiment, in addition to the driving source (motor of the motor member 37) that rotates the impeller 36 of the first air stirring means 25, the driving source (motor unit) that rotates the entire first air stirring means 25 150a) was provided. That is, apart from the first air stirring means 25, the posture changing means 150 has a drive source.
However, the present invention is not limited to this, and the driving source for rotating the impeller 36 to blow air and the driving source for changing the orientation of the blower port portion 57 may be used as a common driving source. . That is, the first air stirring means may be capable of performing the air blowing operation and the operation of changing the direction of the air blowing port 57 (hereinafter also referred to as swinging operation) using a single drive source.

Further, the swinging action may be performed simultaneously with the action of sliding the first air stirring means 25 along the longitudinal direction of the cultivation space 7 (hereinafter also referred to as the arrangement position changing action), or may be performed separately. good too.
That is, either one of the swinging motion and the arrangement position changing motion may be executable, or both may be executable as described above.

The first air agitating means 25 of the above-described embodiment may change the rotation speed of the motor that supplies power to the impeller 36 . A structure in which the rotation speed of the motor is changed to a desired speed by operating an external control device or the like may be employed.
That is, by changing the rotational speed of the motor, the rotational speed of the impeller 36 may be changed to change the wind speed of the air blown from the first air stirring means 25 . Furthermore, various sensors such as a temperature sensor and a humidity sensor may be provided, and the rotation speed of the motor may be automatically changed to an appropriate speed according to the values acquired by these sensors.

The first air stirring means 25 may perform the operation of changing the wind direction between the light period and the dark period as shown in FIG. 13 by enabling the swinging operation as described above.
That is, in the dark period, as shown in FIG. 13A, the air blowing operation is performed in which the air blowing direction is the direction toward the tray outlet 86 side and the direction along the longitudinal direction of the cultivation space 7 ( See Figure 11). On the other hand, in the bright season, as shown in FIG. 13(b), the air blowing operation is performed with the air blowing direction being diagonally downward. That is, the air blowing operation is performed so that the air blowing direction is downward toward the tray outlet 86 side.

As shown in FIG. 14, the first air agitating means 25 of the above-described embodiment can be operated by attaching a wind direction changing member 244, which is a separately formed accessory member (member for attachment), if necessary. good.
In this embodiment, the first hood member 250 and the second hood member 251 , which are a plurality of wind direction changing members 244 , can be selectively attached to the first air stirring means 25 .

Each of the first hood member 250 and the second hood member 251 has two adjustment plate supporting members 244a extending in the direction along the blowing direction, and an air direction adjustment plate 244b supported by the adjustment plate supporting members 244a.
In this embodiment, the adjustment plate support member 244a is a vertical plate-like member, and is attached so that the thickness direction is the same as the longitudinal direction of the first air stirring means 25. As shown in FIG. Specifically, it is fixed to the outer surface of the side wall member 52 , and arranged at a position not overlapping the air blowing port portion 57 in a plan view with the lateral direction of the first air stirring means 25 as the line of sight.

Here, in the first hood member 250 , the adjusting plate support member 244 a is attached to the lower side of the side wall member 52 and extends upward as the distance from the first air stirring means 25 increases. On the other hand, in the second hood member 251 , the adjustment plate support member 244 a is attached to the upper side of the side wall member 52 and extends downward as the distance from the first air stirring means 25 increases.
In other words, the adjusting plate support member 244 a extends in a direction away from the first air stirring means 25 and in a direction including the blowing direction component of the air blown from the air blowing port portion 57 .

The airflow direction adjusting plate 244b is a flat plate-shaped member whose longitudinal ends are fixed to two adjusting plate support members 244a, and the top surface and the bottom surface of each plate are inclined with respect to the horizontal plane.
Specifically, in the first hood member 250, the wind direction adjustment plate 244b extends between the lower side portions of the projecting side end portions of the two adjustment plate support members 244a. The airflow direction adjusting plate 244b is inclined upward in the airflow direction from the airflow port 57 as it moves away from the first air stirring means 25. As shown in FIG.
On the other hand, in the second hood member 251, the wind direction adjusting plate 244b extends between the upper side portions of the projecting side end portions of the two adjusting plate support members 244a. The airflow direction adjusting plate 244b is inclined downward in the airflow direction from the airflow port 57 as it moves away from the first air stirring means 25. As shown in FIG.

These airflow direction adjusting plates 244b are arranged at positions overlapping the air blowing port portion 57 in a plan view with the lateral direction of the first air stirring means 25 as the line of sight. It is to change the air blowing direction of.
Note that the first hood member 250 changes the air blowing direction upward, and the second hood member 251 changes the air blowing direction downward.

As described above, the first air agitating means 25 is attached with either the first hood member 250 or the second hood member 251 according to the type of plant to be grown, or is not attached with the wind direction changing member 244. You can run it with
Further, the number of wind direction changing members 244 is not limited to two as described above, and three or more may be formed. At this time, the airflow direction may be finely adjusted by setting the inclination angles of the airflow direction adjusting plates 244b to different angles.
That is, in the plant cultivation apparatus 1, the air stirring means may have a plurality of air direction changing members 244, and one air direction changing member 244 selected from the plurality of air direction changing members 244 may be attached to the outer shell member 35. . In addition, the wind direction changing member 244 is a member that is integrally fixed to the outer shell member 35 to change the wind direction in the blowing operation to a direction different from the blowing direction. may be in different directions. In addition, depending on the type of growing plant, any one air direction changing member 244 may be selectively attached to the outer shell member 35, or no air direction changing member 244 may be attached.

In addition, the wind direction changing member 244 may be integrally attached to the outer shell member 35 with a fastening element such as a screw or bolt, or may be attached in a state in which rotation can be automatically performed.
That is, the wind direction changing member 244 is driven by a drive source for rotating the impeller 36 of the first air agitating means 25 or power supplied from a separately provided drive source to move the wind direction adjusting plate 244 b toward the air blowing port 57 . It may be possible to perform an action that changes the position. That is, the first air agitating means 25 may be rotatable around a rotation axis extending in the longitudinal direction.
The term "fastening element" as used herein is a generic term for screws, bolts, etc., and is integrally fixed by penetrating a plurality of members (or penetrating at least one member and inserting it into another member). A rod-shaped fixing means is used.

Further, instead of the wind direction changing member 244, more wing plate members 44 may be provided, and these wing plate members 44 may be configured to be automatically rotatable. In other words, the direction of blowing air may be changed by operating the blade member 44 . Further, instead of or in addition to the swinging motion described above, the swinging motion of the plurality of blade members 44 may be performed.

Moreover, the cultivation equipment 3 of the above embodiment may have a solar panel 350 (photoelectric conversion device) attached to the inner surface of the side wall member 11 as shown in FIG. 15 . The solar panel 350 has a photoelectric conversion element between a translucent substrate and a back sealing material, similar to a known one, and converts the light energy of light incident from the light receiving surface into electrical energy, can be taken out.
For the convenience of drawing, only a part of the solar panel 350 is given a reference numeral, and the rest is omitted.

In addition, in such a structure, in addition to the above-described first air stirring means 25, second air stirring means 26, and third air stirring means 27, another small fan (blower) may be provided. Then, the fan may be operated by electric power generated by the solar panel 350 . It should be noted that this small fan can be attached at an appropriate position, for example, it may be attached near the side wall member 11 or near the bottom member 10 .

In addition, the first air stirring means 25 of the above-described embodiment may have a dehumidifying function.
That is, the first air stirring means 25 may be provided with a known dehumidifier (dehumidifying means) to remove moisture from the air taken in by the first air stirring means 25 . At this time, the dehumidifier may be formed integrally with the first air stirring means 25 or may be formed separately and attached to the first air stirring means 25 . Moreover, it is not limited to the structure provided on the suction side of the first air stirring means 25, and may be provided on the blow port side of the first air stirring means 25 to remove moisture from the air flowing from the first air stirring means 25.
The dehumidifier may be a known dehumidifier using a refrigeration cycle, or may use a hygroscopic material such as silica gel. Alternatively, a Peltier element may be used.

The cultivation facility 3 of the above-described embodiment may have a structure in which the first air stirring means 25 can be attached to a plurality of locations in the cultivation space 7 at different positions in the longitudinal direction. That is, other than the beam member 12b, it may be fixed to an appropriate portion of the inner surface of the roof member 12 directly or through an attachment member. The number and mounting positions of the first air stirring means 25 may be changed according to the variety of growing plant.
That is, the first air agitating means 25 may be attached only one like the above-described embodiment, or may be attached in plural. And this mounting position may be changed as appropriate. In other words, in the plant cultivation apparatus 1, the air agitating means can be attached at a plurality of different locations in the longitudinal direction of the cultivation space 7, and the air agitating means can be installed at one or a plurality of positions selected according to the variety of the growing plant. means can be attached.

The above-described plant cultivation apparatus 1 is assumed to be used in an existing structure 400, as shown in FIG. It is assumed to be installed and used inside underground structures such as underground structures and underground tunnels.
In this embodiment, the structure 400 itself is not provided with an air conditioner.

And when installing the plant cultivation apparatus 1 inside such a structure 400, the plant cultivation apparatus 1 may be configured to have a heat insulating wall 410 formed by a plurality of heat insulating panels.
For example, as shown in FIG. 16, the entire plant cultivation apparatus 1 (the plurality of shelf members 2 and A plant cultivation apparatus 401 may be formed in which the cultivation equipment 3 (hereinafter also referred to as the cultivation apparatus main body 1) is arranged.

Specifically, in the plant cultivation device 401, the upper side of the cultivation device main body 1 (the whole of the shelf members 2 arranged side by side) is covered with an upper heat insulating wall 410a. In addition, one end side and the other end side in the short direction of the cultivation device main body 1 (the whole of the shelf members 2 arranged side by side) are covered with lateral heat insulating walls 410b and 410c, respectively. Furthermore, each of one end side and the other end side in the longitudinal direction of the cultivation apparatus main body 1 is also covered with a heat insulating wall (not shown). The cultivation apparatus main body 1 is in a state where five surfaces except for the floor surface are covered with heat insulating walls 410 .
In other words, the cultivation apparatus main body 1 is inside a three-dimensional heat-insulating structure formed by the heat-insulating walls 410 on each of the five sides, and is arranged in a space surrounded by the heat-insulating walls 410 . Insulation walls (not shown) positioned at both ends in the longitudinal direction can be temporarily removed when the cultivation tray 13 (see FIG. 2 and the like) is carried in and out.

Furthermore, in this embodiment, the structure is such that an indoor air conditioner 413 for air conditioning the inside of the three-dimensional structure 411 is further provided.
The indoor air conditioning means 413 is a known heat pump air conditioner, and has a structure including an indoor unit 415 and an outdoor unit (not shown).

The indoor unit 415 takes in indoor air, adjusts the temperature, and discharges the temperature-controlled air from the air outlet 418 . That is, an air intake port and an air discharge port 418 are open in the ceiling portion (upper heat insulating wall 410a) of the three-dimensional structure 411 .
Specifically, the air discharge port 418 is open above an inter-shelf space 426 that is a space formed between two shelf members 2 arranged side by side with an interval therebetween. As a result, the temperature of the space, which is the internal space of the three-dimensional structure 411 and in which the cultivation apparatus main body 1 is arranged, can be maintained within a predetermined range. Note that this temperature setting is not strict, and it is sufficient if it falls within the normal temperature range in the building.

In addition, the three-dimensional structure 411 may be formed by attaching a plurality of heat insulating panels to an outer shell forming member (not shown) arranged outside the cultivation apparatus main body 1 . For example, a frame-like body (framework portion) may be used as the outer shell component, and a heat insulating panel may be fitted and attached. At that time, some of the heat insulating panels may be in a state in which they are simply fitted, and may be easily attached and detached. On the other hand, some other insulation panels may be screwed and firmly attached.
In this case, a plurality of heat insulating panels attached to the shell forming members are arranged in a matrix to form the heat insulating wall 410 which is the wall portion (ceiling wall portion and side wall portion) of the three-dimensional structure 411 .

In addition, by attaching a plurality of heat insulating panels to the shelf member 2 without providing an outer shell constituent member, the heat insulating wall 410a positioned above the cultivation apparatus main body 1 and the heat insulating walls 410b and 410c positioned on the lateral sides are formed. may
That is, the insulating wall 410a may be formed by attaching a plurality of heat insulating panels above the plurality of shelf members 2 arranged in parallel.
In addition, among the shelf members 2 arranged in parallel, the outer side of the shelf member 2 positioned closest to one end in the short direction of the cultivation apparatus main body 1 (the side positioned closer to one end) is heat-insulated. A plurality of panels may be attached to form the insulating wall 410b. Similarly, in the shelf member 2 positioned on the other end side, a plurality of heat insulation panels may be attached to the outer side (the side positioned closer to the other end side) to form the heat insulation wall 410c.
In this case, a heat insulating panel may be fitted and attached to the shelf member 2 (between the two vertical beam members 2a) in the same manner as described above.

In the above-described embodiment, the heat insulating wall 410 is not formed on the inner side of the shelf member 2 (the side of the space 426 between shelves). It is good also as a structure which forms.

The embodiments described above have one or a plurality of cultivation facilities, and the cultivation facilities are formed with a cultivation space that is a cylindrical space with a top and sides covered therein, and plants are grown in the cultivation space. At least one air stirring means is provided in the cultivation space, and the air stirring means is capable of blowing air in a direction along the longitudinal direction of the cultivation space. A plant cultivation device characterized by the following.

This embodiment can reduce (or eliminate) the humidity difference in the air in the cylindrical space, and can further suppress the occurrence of disease in cultivated plants.

In the above-described embodiment, the cultivation space has an inlet for carrying in the plant before growing on one end side in the longitudinal direction, and has an outlet for carrying out the plant after growing on the other end side in the longitudinal direction, It is preferable that the air agitating means can blow air in a direction along the longitudinal direction of the cultivation space and in a direction from the carry-in port toward the carry-out port.

In this preferred embodiment, the air in the space on the carry-out port side, that is, the space in the vicinity of relatively grown plants and the space above it can be agitated intensively, which is preferable.
That is, as the plant grows, the number of leaves increases and the leaves spread over a wider area. For this reason, in the space on the carry-out port side, gaps between plants are reduced, and air tends to stay. This embodiment is preferable because the air can be sufficiently agitated in the space on the outlet side.

In this preferred embodiment, it is more preferable that the air agitating means is installed at a position separated from the carry-in port by a distance of about 1/4 of the total length of the cultivation facility.
The term "degree" used here includes an error of 1 to 10%.

It is further preferable that the above embodiment has driving means for moving the air stirring means, and that the air stirring means is movable in a direction along the longitudinal direction of the cultivation equipment.

In this embodiment, the air agitating means can be appropriately moved to a desired position to carry out the blowing operation. For example, by changing the position of the plant according to the growing conditions of the plant, and performing the blowing operation so that the wind is focused on a specific plant, it is possible to promote the photosynthesis of this specific plant. Become. From this, the plant can be suitably grown.

The above embodiment has an attitude changing means for changing the attitude of at least a part of the air agitating means, and the attitude changing means rotates around a rotating shaft extending in a direction intersecting with the longitudinal direction of the cultivation equipment. It is preferable that at least a part of the air stirring means can be rotated, and that the air stirring means can change the blowing direction by the posture changing means.

Further, in the above embodiment, the air stirring means performs the air blowing operation by rotating the impeller, and by changing the rotation speed of the impeller, the wind speed in the air blowing operation can be changed. , it is preferable to change the wind speed in the blowing operation.

Also in these embodiments, it is possible to change the blowing direction and the wind speed according to the situation of the cultivation space, for example, the growth situation of the plant, which is preferable.

In the above preferred embodiment, the cultivation space is provided with lighting means for irradiating the plants with artificial light, and the cultivation facility has a light period during which the plants are irradiated with light by the lighting means, and the light period. It is possible to switch to a dark period in which the plant is irradiated with a smaller amount of light than in the light period, or the lighting means does not irradiate the plant with light, and the air stirring means is directed toward the plant in the light period. It is more preferable to blow the air in the direction toward the top of the plant during the dark period.

In this embodiment, during the light period, the operation of stirring the air in the cultivation space is performed while promoting the transpiration of the plants. It is possible to perform an operation such as performing agitation. From this, the plant can be suitably grown.

In the above-described embodiment, the air stirring means has an outer shell member, an impeller housed in the outer shell member, and an attached wind direction changing member attachable to the outer shell member, and the wind direction changing member is attached to the outer shell member. is attached, it is preferable that the blowing direction in the blowing operation can be changed to a direction different from the blowing direction.

In such an embodiment, by attaching and detaching the wind direction changing member to the growing plant according to the variety, it is possible to perform a more appropriate air blowing operation.

In the above embodiment, it is more preferable that the air stirring means has dehumidifying means for dehumidifying the air in the cultivation space.

In such an embodiment, it becomes easier to adjust the humidity in the cultivation space.

As described above, in the plant cultivation apparatus 1 of the present embodiment, the culture solution is supplied to the cultivation tray 13 inside the cultivation equipment 3, and the culture solution discharged from the cultivation tray 13 flows out to a predetermined position outside. Fluid control means are provided.
The nutrient solution control means will be described below with reference to FIG.
In the cultivation space 7 of the plant cultivation apparatus 1, a culture medium supply channel 55 for supplying the culture medium to the cultivation tray 13 is provided.
The culture solution supply channel 55 has a main pipe 56 and a large number of branch pipes 58 branched from the main pipe 56 .
In this embodiment, the nutrient solution tank 45 is provided outside, and the culture solution is pressure-fed to the main pipe 56 by a pump (not shown), flows from the branch pipe 58 into the nozzle 92 , and is supplied from the nozzle 92 to the cultivation tray 13 .
The culture solution overflowing from the cultivation tray 13 is collected by the gutter 46 and collected in the nutrient solution tank 45 .

Next, the cultivation tray 13 will be described with reference to FIG. 18 . The cultivation tray 13 functions as hydroponic cultivation means, and is composed of a small nutrient solution storage tank 40 that is square in plan view and a plant holder 28 .
The small-sized nutrient solution storage tank 40 is made of a lightweight resin such as polystyrene foam, and is a small-sized tray with a water-tight structure and an open top surface. In this embodiment, the small nutrient solution storage tank 40 is provided with overflow pipe portions 91a and 91b.
The plant holder 28 is a plate made of a material with a low specific gravity, and is provided with a plurality of openings 31 . A plant seedling is held in the opening 31 . The plant holder 28 has a strong buoyancy and not only floats on water by itself, but also does not sink even when holding a plant.
The plant holder 28 is installed in the small nutrient solution storage tank 40 with the plant held in the opening 31 .

As described above, a plurality of roller conveyors 30 are installed inside the cultivation facility 3 . The roller conveyor 30 is a so-called roller conveyor, in which small idle roller members 152 are arranged.
The cultivation tray 13 is placed on a roller conveyor 30, and moves on the roller conveyor 30 when receiving an external force.

As described above, the cultivation facility 3 has the horizontally extending tubular cultivation space 7, and the cultivation space 7 includes a tray carry-in port 85 (carry-in port) for carrying in a new cultivation tray 13, and a cultivation space. There is a tray outlet 86 (outlet) for taking out the tray 13 .
Then, a new cultivation tray 13 is carried in from the tray carry-in port 85, and the cultivation tray 13 already brought in is pushed by the new cultivation tray 13 toward the tray carry-out port 86 (see FIG. 10). Twenty or more cultivation trays are arranged in series in the cultivation space 7 , and all the cultivation trays 13 in the cultivation space 7 are moved by carrying in a new cultivation tray 13 .

FIG. 19 is a perspective view showing the vicinity of the tray inlet 85 of the cultivation facility 3. FIG.
In this embodiment, the tray moving device 100 is provided near the tray inlet 85 , and the new cultivation tray 13 can be pushed into the cultivation space 7 from the tray inlet 85 with the tray moving device 100 .

As shown in FIG. 20, the tray moving device 100 has a push plate member (moving member) 101 and a conveyor device 102 . In the present embodiment, the conveyor device 102 functions as a placement section on which the cultivation tray 13 is placed. Also, the conveyor device 102 and the push plate member 101 function as moving means for moving the cultivation tray 13 .

The push plate member 101 has a body plate 97 and a drive means 105 for linearly moving the body plate 97 by a fixed distance. In this embodiment, the push plate member 101 functions as a moving member.
The body plate 97 is a plate in which pressing pieces 110a, 110b, 111, and 112 are provided in three rows. For convenience of explanation, the pressing pieces 110a and 110b in the front row in the advancing direction of the body plate 97 are referred to as front pressing pieces 110a and 110b, the intermediate pressing piece 111 is referred to as the middle row pressing piece 111, and the rear pressing piece is referred to. 112 is called a rear row pressing piece 112 .

Both the front row pressing pieces 110a and 110b and the middle row pressing piece 111 can take a standing posture as shown in FIGS. 21(b) and 21(c) and a horizontal posture as shown in FIG. 21(a). The front row pressing pieces 110a and 110b and the middle row pressing piece 111 are provided with driving means (not shown), and the driving means can change the posture from the standing posture to the horizontal posture and vice versa.
The rear-row pressing piece 112 is in the form of a short wall, is a fixed wall, and cannot change its posture.

A rack 115 and a guide receiving member 116 are attached to the back side of the body plate 97 as shown in FIG. The rack 115 is located on the back side of the body plate 97 and at the center thereof, and extends along the moving direction of the body plate 97 .
The guide receiving members 116 are provided at four locations on the back surface of the body plate 97 .
The tray moving device 100 has a frame (not shown) on which two guide rods 143 are provided. A guide rod 143 is inserted through the guide receiving member 116 of the body plate 97 . Therefore, the body plate 97 is restricted in movement by the guide rod 143 and has a degree of freedom only in the linear direction.

A motor-incorporating roller 121 is attached to a frame (not shown), and a gear 118 provided on the motor-incorporating roller 121 is engaged with the rack 115 .
Here, the motor-incorporating roller 121 has a motor and a speed reducer built in the body cylinder, and the body cylinder rotates by rotating the motor.
The gear 118 described above is attached to the body tube, and by rotating the motor, the gear 118 rotates, and the body plate 97 moves linearly together with the rack 115 engaged therewith.

Conveyor device 102 is a double belt conveyor having narrow belts 120a and 120b.
That is, the conveyor device 102 is composed of a first conveyor 122a on which the belt 120a runs and a second conveyor 122b on which the belt 120b runs. It is a thing.

The first conveyor 122a and the second conveyor 122b are both conveyors having motor-incorporating rollers 123 as drive pulleys.
That is, the first conveyor 122a has a narrow belt 120a suspended on a first suspension path 125a formed by a plurality of pulleys including a roller 123 with a built-in motor. The second conveyor 122b has a narrow belt 120b suspended on a second suspension path 125b configured by a plurality of pulleys including a roller 123 with a built-in motor.

The tray moving device 100 has the aforementioned push plate member 101 arranged in the center, and a first conveyor 122a and a second conveyor 122b arranged on both sides thereof.
As described above, the tray moving device 100 has the first conveyor 122a and the second conveyor 122b arranged on both sides of the push plate member 101. The height of the conveying surfaces of the first conveyor 122a and the second conveyor 122b is It is positioned higher than the push plate member 101 .

In this embodiment, the tray moving device 100 is attached to the lifting means 130 .
The lifting means 130 has a frame 131 with two posts 135 as shown in FIG. A motor-incorporating roller 132 is attached to the frame 131 . A toothed pulley 136 is provided on the motorized roller 132 .

The two pillars 135 forming the frame 131 are provided with guides (not shown). A portion of the tray moving device 100 is engaged with the guide described above.
There is also an elongated toothed belt 140 , and one end of the toothed belt 140 is connected to the tray moving device 100 . An intermediate portion of the toothed belt 140 engages with a toothed pulley 136 attached to the motor-incorporating roller 132 , and a balance weight 141 is attached to the other end of the toothed belt 140 .
Therefore, when the motor-incorporating roller 132 is rotated, the toothed pulley 136 rotates, the toothed belt 140 moves up and down, and the tray moving device 100 moves up and down along the two pillars 135 .

A curtain-like sheet 137 is provided on the front surface of the tray moving device 100 .
As described above, the plant cultivation apparatus 1 has the cultivation facilities 3 arranged on the shelf members 2 in four rows and two rows. In this embodiment, one tray moving device 100 and one lifting means 130 are installed for each row.
In this embodiment, one tray moving device 100 and lifting means 130 are provided for four stages of cultivation equipment 3 . Then, the height of the tray moving device 100 is adjusted to the height of each cultivation facility 3 by the elevating means 130 , and the tray moving device 100 is driven to push and move the cultivation tray 13 in the cultivation space 7 .
The sheet 137 closes the tray inlet 85 of the cultivation equipment 3 located below the cultivation equipment 3 for moving the cultivation tray 13 .

Next, the operation of the tray moving device 100 will be described with reference to FIGS. 22 to 24. FIG.
In the plant cultivation device 1 of the present embodiment, the tray moving device 100 is used to move the cultivation tray 13 installed in the cultivation space 7 toward the tray carry-out port 86 .
As an actual operation, there is a case where there is a gap for inserting a new cultivation tray 13 in the cultivation space 7, and a case where the cultivation trays 13 are densely arranged in the cultivation space 7, and there is a gap for newly inserting the cultivation tray 13. may not be available.

In the plant cultivation apparatus 1 of the present embodiment, a plurality of pressing pieces 110a, 110b, 111, and 112 are provided in contact with and pressing the cultivation tray 13, and the pressing pieces are selectively used to press the cultivation tray according to the application. Move 13.
For convenience of explanation, the area in which one cultivation tray 13 is arranged is referred to as an arrangement area, and as shown in FIGS. Also, the placement area in the immediate vicinity of the tray outlet 86 will be referred to as the final placement area.

FIG. 22 shows a state in which there is a gap in the cultivation space 7 into which the cultivation tray 13 is newly inserted. That is, as shown in FIG. 22A, there is an empty area in the first placement area, and a new cultivation tray 13A can be carried into the first placement area.

In this case, as shown in FIG. 22(a), the intermediate row pressing piece 111 is in a standing posture. Then, a new cultivation tray 13A is placed on the tray moving device 100. As shown in FIG.
As described above, since the conveying surfaces of the first conveyor 122a and the second conveyor 122b are higher than the push plate member 101, the new cultivation tray 13A is placed on the first conveyor 122a and the second conveyor 122b. It will be placed. That is, in the present embodiment, the first conveyor 122a and the second conveyor 122b function as placement units on which the cultivation trays 13 are placed.
There is a slight gap between the surface of the push plate member 101 and the bottom of the cultivation tray 13A.
However, when the intermediate row pressing piece 111 is erected, the intermediate row pressing piece 111 is higher than the bottom of the cultivation tray 13A.

In this state, the push plate member 101 and the conveyor device 102 are driven simultaneously and synchronously. As a result, the cultivation tray 13A is pushed by the intermediate row pressing piece 111 of the pressing plate member 101 . The cultivation tray 13A is also conveyed by the conveyor device 102.
Therefore, the cultivation tray 13A is moved toward the cultivation space 7 by both the push plate member 101 and the conveyor device 102 . That is, in this embodiment, both the push plate member 101 and the conveyor device 102 function as moving means for moving the cultivation tray.

Finally, the cultivation tray 13A enters the cultivation space 7. - 特許庁Here, in the cultivation space 7, a pair of two roller conveyors 30 are arranged in parallel with an interval therebetween.
Therefore, the pushed cultivation tray 13A is transferred to the roller conveyor 30 in the cultivation space 7. - 特許庁The cultivation tray 13A is further pushed into the cultivation space 7 by both the push plate member 101 and the conveyor device 102 .
Here, since the roller conveyor 30 is formed by arranging the idle roller members 152, the cultivation tray 13A moves on the roller conveyor 30 and is settled in the first arrangement area.

When the cultivation tray 13A enters the cultivation space 7, part of the push plate member 101 also enters the cultivation space 7 as shown in FIG. 19(b).
In this embodiment, the width of the push plate member 101 is narrower than the interval between the roller conveyors 30 in the cultivation space 7, and the height of the push plate member 101 is made lower than the height of the conveying surface of the roller conveyor 30. ing.
Therefore, when the cultivation tray 13</b>A enters the cultivation space 7 , the push plate member 101 enters between the two roller conveyors 30 .

When the cultivation tray 13A is settled in the first placement area, the push plate member 101 is returned to its original position as shown in FIG. 22(c).

FIG. 23 shows a state in which the cultivation trays 13 are densely arranged in the cultivation space 7 and there is no gap for inserting a new cultivation tray 13 . That is, as shown in FIG. 23A, in the cultivation space 7, the cultivation trays 13 are densely arranged from the first arrangement area to the final arrangement area.

In this situation, when a new cultivation tray 13A is put into the cultivation space 7, as shown in FIG. 112 pushes the cultivation tray 13A.
Also in this case, a new cultivation tray 13A is placed on the tray moving device 100. FIG.
Then, the push plate member 101 and the conveyor device 102 are driven simultaneously and synchronously. As a result, the cultivation tray 13A is pushed by the rear pressing piece 112 of the pressing plate member 101 . The cultivation tray 13A is also conveyed by the conveyor device 102.
Therefore, the cultivation tray 13A is moved toward the cultivation space 7 by both the push plate member 101 and the conveyor device 102 .

Finally, the cultivation tray 13A enters the cultivation space 7. - 特許庁In the situation shown in FIG. 23, the cultivation trays 13 are densely arranged in the cultivation space 7 from the first arrangement area to the final arrangement area.
Therefore, when the cultivation tray 13A is newly pushed into the cultivation space 7, the tip of the cultivation tray 13A pushes and moves the cultivation tray 13B already existing in the first arrangement area. The moved cultivation tray 13B pushes and moves the cultivation tray 13C existing in the adjacent second arrangement area.
In this way, the cultivation trays 13 in the cultivation space 7 are sequentially pushed, and finally the cultivation tray 13E in the final arrangement area is moved and pushed out from the tray outlet 86 of the cultivation space 7 as shown in FIG. 23(b). .
The plants planted on the cultivation tray 13E in the final arrangement area have already grown large, and are removed from the cultivation tray 13E and shipped.

According to the usage method shown in FIG. 23, by forcibly moving one cultivation tray 13B, all the cultivation trays 13 in the cultivation space are pushed toward the tray outlet side. Further, according to the usage method shown in FIG. 23, by carrying a new cultivation tray 13A into the cultivation space 7 from the tray tray carry-in port 85, the cultivation tray 13B and the like which have already been carried in by the cultivation tray 13A are moved to the tray carry-out port 86 side. It will be pushed and moved.

In the plant cultivation device 1 of the present embodiment, the cultivation tray 13 in the cultivation space 7 can be directly pushed by the tray moving device 100 and moved.
In this case, as shown in FIG. 24A, the front-row pressing pieces 110a and 110b are in a standing posture, and the cultivation tray 13 in the cultivation space 7 is pushed by the front-row pressing pieces 110a and 110b.
For example, as shown in FIG. 24(b), the cultivation tray 13B existing in the first arrangement area is pushed. If the cultivation trays 13 are densely arranged from the first placement area to the final placement area, the cultivation trays 13E in the final placement area move as shown in FIG. pushed out from

According to the usage method shown in FIG. 24, by forcibly moving one cultivation tray 13B, all the cultivation trays 13 in the cultivation space are pushed toward the tray outlet side.

As another method of using the tray moving device 100, there is a method shown in FIG. FIG. 25 shows an example of use when there is a gap in the cultivation space 7 into which the cultivation tray 13 is newly inserted.
In this case, both the front row pressing pieces 110a and 110b and the middle row pressing piece 111 are horizontally positioned as shown in FIG. 25(a). In this state, the lifting means 130 is lowered to lower the tray moving device 100 to the ground floor, and a new cultivation tray 13A is placed on the tray moving device 100. FIG. Then, the elevating means 130 is raised to raise the tray moving device 100 to a desired floor. FIG. 25(a) shows the state at this time.

Next, as shown in FIG. 25B, only the conveyor device 102 of the tray moving device 100 is driven to move the cultivation tray 13A forward so that part of the cultivation tray 13A enters the cultivation space 7. Next, as shown in FIG.
At this time, since the push plate member 101 is maintained in a stopped state, the push plate member 101 stops at the same position as in FIG. 25(a) as shown in FIG. 25(b).

Subsequently, as shown in FIG. 25(c), the middle row pressing piece 111 is set to the standing posture.
Then, as shown in FIG. 25(c), the push plate member 101 is driven to move forward, and the rear end portion of the cultivation tray 13A is pushed by the intermediate row pushing piece 111 to put the cultivation tray 13A into the cultivation space 7. As shown in FIG.

In the embodiment described above, the conveyer device 102 and the push plate member 101 are employed as means for moving the cultivation tray 13 in the tray moving device 100 .
The former conveyor device 102 is brought into contact with the bottom surface of the cultivation tray 13 to urge the bottom surface of the cultivation tray 13 in the advancing direction. The latter push plate member 101 pushes the end of the cultivation tray 13 and the like to move the cultivation tray 13 .

In the above-described embodiment, a belt conveyor was exemplified as the conveyor device 102 provided in the tray moving device 100. However, the conveyor device employed in the tray moving device 100 is not limited to this, and a chain conveyor or a power source may be used. It may be a roller conveyor having.

In the above-described embodiment, the conveyor device 102 and the push plate member 101 are used as moving means, but either one may be used. For example, it may be only a structure in which the cultivation tray 13 is moved by pushing the end of the cultivation tray 13 or the like.
In the above-described embodiment, a linear motion mechanism using the rack 115 and the gear 118 is used as a mechanism for pushing the end of the cultivation tray 13 to move the cultivation tray 13, but screws, cylinders, or the like may be used.

1,401 plant cultivation apparatus 3,103 cultivation equipment 7 cultivation space 13 cultivation tray 28 plant holder 30 roller conveyor 40 small nutrient solution storage tank 55 culture solution supply channel 85 tray carry-in port (carry-in port)
86 tray exit (export)
100 tray moving device 101 push plate member (moving means)
102 Conveyor device (placement section moving means)
130 Lifting means 152 Roller member

Claims (8)

A cultivation space having a tray carry-in port and a tray carry-out port, a plurality of cultivation trays formed with storage tanks for storing the culture solution inside, and a culture solution supplied to the cultivation trays in the cultivation space and discharged from the cultivation trays. The cultivation tray is introduced from the tray carry-in port, the cultivation tray is moved toward the tray carry-out port in the cultivation space, and the cultivation tray is moved from the tray carry-out port. in a plant cultivation device for carrying out and growing a plant planted in a cultivation tray in the meantime,
A plurality of roller members are installed in the cultivation space, and the cultivation tray is placed on the roller members,
By carrying a new cultivation tray into the cultivation space from the tray carry-in port, the cultivation tray that has already been brought in is pushed to the tray carry-out side,
Having a roller row in which roller members are arranged, the roller row is arranged in parallel with an interval in the cultivation space,
1. A plant cultivating apparatus comprising a tray moving device for moving a cultivation tray, the tray moving device being capable of entering and moving a part of the space between the rows of rollers facing each other. A cultivation space having a tray carry-in port and a tray carry-out port, a plurality of cultivation trays formed with storage tanks for storing the culture solution inside, and a culture solution supplied to the cultivation trays in the cultivation space and discharged from the cultivation trays. The cultivation tray is introduced from the tray carry-in port, the cultivation tray is moved toward the tray carry-out port in the cultivation space, and the cultivation tray is moved from the tray carry-out port. in a plant cultivation device for carrying out and growing a plant planted in a cultivation tray in the meantime,
A plurality of roller members are installed in the cultivation space, and the cultivation tray is placed on the roller members,
By carrying a new cultivation tray into the cultivation space from the tray carry-in port, the cultivation tray that has already been brought in is pushed to the tray carry-out side,
It has a tray moving device for moving the cultivation tray, and an elevating means for lifting and lowering the tray moving device. Having a linear motion mechanism for linearly moving the pressing piece,
Adjusting the height of the tray moving device to the height of the roller member by the lifting means in a state where the cultivation tray is placed on the placing part,
A plant cultivation apparatus, wherein the pressing piece is linearly moved to carry the cultivation tray into the cultivation space through the tray inlet. A cultivation space having a tray carry-in port and a tray carry-out port, a plurality of cultivation trays formed with storage tanks for storing the culture solution inside, and a culture solution supplied to the cultivation trays in the cultivation space and discharged from the cultivation trays. The cultivation tray is introduced from the tray carry-in port, the cultivation tray is moved toward the tray carry-out port in the cultivation space, and the cultivation tray is moved from the tray carry-out port. in a plant cultivation device for carrying out and growing a plant planted in a cultivation tray in the meantime,
A plurality of roller members are installed in the cultivation space, and the cultivation tray is placed on the roller members,
By carrying a new cultivation tray into the cultivation space from the tray carry-in port, the cultivation tray that has already been brought in is pushed to the tray carry-out side,
It has a tray moving device for moving the cultivation tray, the tray moving device has a moving member that can move a certain distance, and the moving member is provided with pressing pieces that contact the cultivation tray at a plurality of places, A plant cultivating apparatus, wherein the pressing piece is selectively used to move the cultivating tray. A cultivation space having a tray carry-in port and a tray carry-out port, a plurality of cultivation trays formed with storage tanks for storing the culture solution inside, and a culture solution supplied to the cultivation trays in the cultivation space and discharged from the cultivation trays. The cultivation tray is introduced from the tray carry-in port, the cultivation tray is moved toward the tray carry-out port in the cultivation space, and the cultivation tray is moved from the tray carry-out port. in a plant cultivation device for carrying out and growing a plant planted in a cultivation tray in the meantime,
A plurality of roller members are installed in the cultivation space, and the cultivation tray is placed on the roller members,
By carrying a new cultivation tray into the cultivation space from the tray carry-in port, the cultivation tray that has already been brought in is pushed to the tray carry-out side,
It has a tray moving device for moving the cultivation tray, and the tray moving device includes a moving member provided with a pressing piece that can move a certain distance and contacts the cultivation tray, and a cultivation tray on which the cultivation tray is placed. A plant cultivating apparatus comprising a conveyor device for moving a tray, wherein the moving member and the conveyor device are synchronously driven to move the cultivating tray. 5. The plant cultivation apparatus according to any one of claims 1 to 4, wherein a new cultivation tray is pushed into the cultivation space by the tray moving device. It is possible to carry a new cultivation tray into the cultivation space from the tray carry-in port, push the already-carried-in cultivation tray to the tray carry-out port side, and push out the first cultivation tray from the tray carry-out port. The plant cultivation device according to any one of claims 1 to 5, characterized by: 7. The plant cultivation apparatus according to any one of claims 1 to 6 , wherein 20 or more cultivation trays are arranged in series in the cultivation space, and all the cultivation trays in the cultivation space are moved. Using the plant cultivation device according to any one of claims 1 to 7,
A plurality of cultivation trays having storage tanks for storing the culture solution are installed in a cultivation space having a tray inlet and a tray outlet, and the cultivation trays are supplied with the culture solution in the cultivation space. is moved toward the tray outlet, the cultivation tray is carried out from the tray outlet, and in the meantime, the plant planted in the cultivation tray is grown,
A method for producing a plant, wherein a new cultivation tray is carried into a cultivation space through a tray carry-in port, and a cultivation tray that has already been brought in is pushed to the tray carry-out port side by the cultivation tray.

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