JP6635604B2 - Plant cultivation equipment - Google Patents

Description

  The present invention relates to a plant cultivation apparatus including a plurality of cultivation tanks installed along a passage provided on a site in a plant cultivation house.

  Conventionally, in a plant cultivation apparatus for cultivating plants such as strawberries, the entire surface is covered with a transparent member such as a transparent vinyl sheet having flexibility or a transparent plate member having rigidity. Some are installed in a cultivation house. When a plant cultivation device is installed in such a cultivation house, a cultivation tank provided in the plant cultivation device is provided in order to cultivate as many strawberry as a plant in a limited space in the cultivation house. 2. Description of the Related Art A space is effectively used by using a multi-stage structure or making it movable (for example, see Patent Document 1).

  In the cultivation apparatus described in Patent Literature 1, cultivation tanks are respectively suspended at both ends of a hanging rope whose central portion in the longitudinal direction is wound around a drive shaft, and a pair of these suspended cultivation tanks is driven. A plurality of units configured to move in opposite vertical directions by rotating the shaft are arranged in parallel. By rotating the drive shaft forward or backward about its axis, the vertical positional relationship between the upper cultivation tub and the lower cultivation tub can be exchanged. As a result, it can be used as a passage for humans and a space for people to work directly under the cultivation tank located above, to care for strawberries in the cultivation tank located below and to pick fruit that has grown. I have to.

Japanese Patent No. 3661152

However, in the conventional cultivation apparatus described in Patent Literature 1, since the upper and lower positional relations of the pair of cultivation tanks separated in the horizontal direction are exchanged to secure a passage, the cultivation tank is directly below the pair of cultivation tanks. In this case, it is necessary to provide a passage in the area of the site located in each area, and the area of the passage that must be maintained is large, which makes the maintenance troublesome.
In addition, although the work of caring for strawberries in the lower cultivation tank and picking out the grown strawberry of the pair of cultivation tanks can be performed while a person is standing in the aisle, the cultivation tank located above the Since it is positioned higher than the height, it is difficult to work on strawberries in the cultivation tank while a person is standing in the aisle. Therefore, if the upper and lower positional relations of the pair of cultivation tanks are exchanged and the cultivation tank located above is positioned below, the strawberries can be cared for and harvested, but the upper and lower positions of the pair of cultivation tanks can be maintained. The operation of changing the positional relationship is troublesome, and every time the operation is performed, it is necessary for a person to leave the passage once.

  There is also a strawberry cultivation house for so-called strawberry picking, which allows ordinary people to harvest strawberries themselves and eat them as they are. However, when a conventional cultivation apparatus as described in Patent Document 1 is used in a strawberry picking house, a general person passing through a passage in the house may have a cultivation tank located directly above the person. Therefore, there is a possibility that the cultivation tank may cause a feeling of oppression or anxiety depending on the cultivation tank, which is not preferable.

  The present invention has been made in order to solve the above-described problems, and it is not necessary to increase the area of a passage while increasing the cultivation amount of plants per site area, and to care and harvest plants in a cultivation tank. It is another object of the present invention to provide a plant cultivation apparatus that can reduce the work required when performing such operations as above and that does not give a feeling of oppression or anxiety to a person by a cultivation tank.

In order to achieve the above object, a plant cultivation device according to the present invention is a plant cultivation device including a plurality of cultivation tanks arranged along a passage provided on a site in a plant cultivation house, A gantry installed on the site and extending along the passage, and a pair of fixed cultivations installed on the upper surface of the gantry so as to be parallel to each other at a predetermined interval in the horizontal direction and extending along the gantry Tank, a movable cultivation tank that is disposed directly above the center between the pair of fixed cultivation tanks and extends in parallel with the pair of fixed cultivation tanks in a plan view, and in a vertical direction with the movable cultivation tank suspended. a lifting device for lifting and are spaced apart from one another, while having a pair of circular tubular guide rails respectively extending in the vertical direction, said both end portions of the movable cultivation tray comprises a pair of guide portions, respectively, said pair A circular guide hole is formed in each of the guide portions, and each of the guide rails is inserted into each of the guide holes, whereby the pair of guide portions are guided by the pair of guide rails, respectively, and are vertically extended. It is characterized by being movable .

The plant cultivation apparatus according to the present invention described in claim 2 is the plant cultivation apparatus according to claim 1 , wherein the pair of fixed cultivation tanks and the movable cultivation tank have a cylindrical shape with an opening formed on an upper surface. An outer tube, a seedbed having a lower portion installed in the outer tube and an upper portion protruding from the opening, and a plurality of communication holes communicating between the inside and the outside, and a drainage pipe installed at a lower portion in the outer tube, And a water supply pipe positioned above the nursery and having a water supply hole for supplying water to the nursery.

The plant cultivation apparatus according to the present invention described in claim 3 is the plant cultivation apparatus according to claim 2 , wherein the outer pipes of the pair of fixed cultivation tubs and the movable cultivation tub are respectively provided from one end to the other end. It is characterized in that it is arranged to be inclined so that it becomes lower as it goes.

A plant cultivation apparatus according to the present invention described in claim 4 is the plant cultivation apparatus according to any one of claims 1 to 3 , wherein the pair of fixed cultivation tanks is installed on an upper surface. and wherein the passages, they are provided with a plurality each of the premises so as to be arranged alternately in the horizontal direction, fixing the each pair in the plan view while being arranged above the center directly above between each pair of fixed cultivation tray A plurality of the movable cultivation tanks extending in parallel to the cultivation tank, and the elevating device for vertically moving the plurality of the movable cultivation tanks in a suspended state, respectively , the plurality of movable cultivation tanks respectively Correspondingly, each of the pair of guide rails is provided, and at both ends of each of the plurality of movable cultivation tanks, each of the movable cultivation tanks is vertically guided by the pair of guide rails. It is characterized in that it comprises a pair of guide portions, respectively.

According to the invention as set forth in claim 1, since the fixed cultivation tank is stably installed by being installed on the top of the gantry installed on the site, the plant cultivated in the fixed cultivation tank is Work such as care and harvesting is easy.
Further, in the plant cultivation apparatus, a pair of fixed cultivation tanks installed on the upper surface of the gantry, and a movable cultivation disposed just above the center between the pair of fixed cultivation tanks and extending in parallel with the pair of fixed cultivation tanks in plan view. Since a tank is included, the cultivation amount of the plant per area on the site in the cultivation house can be increased.

In addition, a mount on which the fixed cultivation tank is installed extends along the passage, and a movable cultivation tank extends in parallel just above the center between the pair of fixed cultivation tanks. For this reason, the worker can perform operations such as care and harvesting while moving on the same passage for both plants cultivated in the fixed cultivation tank and plants cultivated in the movable cultivation tank. At the same time, since there is no movable cultivation tank suspended right above a person or worker passing through the passage, there is no fear that the movable cultivation tank may cause a feeling of oppression or anxiety.
Furthermore, the plant cultivation apparatus according to the present invention includes a lifting device that vertically moves the movable cultivation tank in a suspended state, so that the position of the movable cultivation tank in the vertical direction is changed as necessary. be able to. For this reason, the movable cultivation tank can be raised to a high position away from the fixed cultivation tank so that the plants cultivated in the fixed cultivation tank are easily exposed to sunlight, while the care and harvesting of the plants cultivated in the movable cultivation tank are possible. When performing such operations, the movable cultivation tank can be lowered to facilitate the operation.

In addition, since the movable cultivation tank is provided with a pair of guide sections which are respectively guided by a pair of guide rails and can move in the vertical direction at both ends of the movable cultivation tank, the movable cultivation tank can be stably moved up and down without tilting or rattling. can do. In detail, by inserting guide rails respectively into the guide holes of the guide portions at both ends of the movable cultivation tank, the pair of guide portions are configured to be guided by the pair of guide rails and move in the vertical direction. Therefore, the movable cultivation tank can be moved up and down stably without tilting or rattling.

Moreover , since a pair of fixed cultivation tanks are juxtaposed on the upper surface of the frame, the number of plants cultivated in the fixed cultivation tanks can be further increased. Further, since the movable cultivation tank is disposed directly above the center between the pair of fixed cultivation tanks, it is difficult for the movable cultivation tank to block sunlight that is obliquely inserted into the plants cultivated in the pair of fixed cultivation tanks.

According to the invention as set forth in claim 2 , a pair of fixed cultivation tubs and movable cultivation tubs are provided at the lower part of the outer tube, with the lower part being installed in the outer tube and the upper part protruding from the opening of the outer tube. And a water supply pipe positioned above the nursery and provided with a water supply hole for supplying water to the nursery, so that hydroponic cultivation can be suitably performed and a fixed cultivation tank is provided. And a movable cultivation tank can be constituted compactly.

According to the third aspect of the present invention, the outer pipes of the pair of fixed cultivation tanks and the movable cultivation tanks are arranged so as to be inclined so as to be lower from one end side to the other end side. Excess water generated in the outer tube of the tank and movable cultivation tank can be allowed to flow naturally from one end of the outer tube to the other end by the action of gravity, and can be drained smoothly by draining to the outside as it is Can be.

According to the invention as set forth in claim 4 , the mount and the passage on which the pair of fixed cultivation tanks are installed are provided on the site so that they are alternately arranged in the horizontal direction, and each of the pair of fixed cultivation tanks is provided. Since each movable cultivation tank is located directly above the center between the fixed cultivation tanks and each movable cultivation tank, the passage is located near any position of each fixed cultivation tank and each movable cultivation tank. Work such as care and harvesting of plants in the cultivation tank is easy.

It is a front view showing the state where the cultivation house in which the plant cultivation equipment concerning a 1st embodiment of the present invention was installed was permeated the member which covers the surface, and it cut and saw some members. FIG. 2 is an enlarged view of a part indicated by an arrow A in FIG. 1 and a part of the member is cut away. It is a side view which shows the state which looked at the fixed cultivation tank from the right side. It is a top view which shows the state which looked at the fixed cultivation tank shown in FIG. 3 from the upper part. FIG. 9 is a view showing a cross section taken along line BB in FIGS. 3 and 8. It is a side view which shows the state which cut | disconnected the drainage pipe and saw from the right side. It is a side view which shows the state which cultivated the strawberry in the fixed cultivation tank shown in FIG. 3, and was seen from the right side. It is a side view which shows the state which looked at the movable cultivation tank from the right side.

It is a top view which shows the state which looked at the movable cultivation tank shown in FIG. 8 from the upper part. FIG. 2 is a side view showing a state in which a part of the front side of the cultivation house shown in FIG. FIG. 2 is a side view showing a state in which a part of the rear side of the cultivation house shown in FIG. (1) FIG. 10 is an enlarged view of a portion indicated by an arrow C in FIGS. 10 and 11, (2) FIG. 11 is an enlarged view of a portion indicated by an arrow D in FIG. The figure is an enlarged view of a portion indicated by an arrow E in FIGS. 10 and 11. It is a front view showing the state where the cultivation house in which the plant cultivation equipment concerning a 2nd embodiment of the present invention was installed was seen by seeing the member which covers the surface, and fracturing some members.

(First Embodiment)
Hereinafter, a first embodiment of a plant cultivation apparatus according to the present invention will be described in detail with reference to FIGS. In some of these drawings, some of the long members are omitted in the longitudinal direction for convenience of drawing. FIG. 1 shows a cultivation house 10 in which a plant cultivation apparatus 20 according to the same embodiment is installed, penetrates a member (main vinyl sheet 22 described later) that covers the surface so that the inside can be seen, and breaks some members. Is shown. A strawberry P is illustrated as a plant cultivated by the plant cultivation apparatus 20. In the following description, the front, rear, left, right, and up and down directions are based on FIG. 1, and the near side in FIG. 1 is the front and the far side is the rear. The directions indicated by arrows L and R indicate leftward and rightward directions, respectively, and the direction indicated by arrow F indicates forward.

  The cultivation house 10 includes a plurality of concrete bases 12 whose middle and lower parts are buried in a site 11 in the cultivation house 10 at equal intervals in the front-rear direction for each row in two rows on the left and right. A plurality of struts 13 extending vertically upward from the upper surface of each foundation 12, and a girder 14 extending in the front-rear horizontal direction while connecting the vertically intermediate portions (upper end) of the struts 13 adjacent to each other in the front-rear direction. A plurality of curved members 15 which are respectively bridged between upper ends of the columns 13 facing each other in the left-right direction and are bent upward in an arc shape; 15 and a plurality of main beams 16 extending in the left-right horizontal direction while being bridged between two spaced apart points on the middle of the curved material 15 in the left-right direction and extending in the left-right horizontal direction. The backbone of the cultivation for the house 10 is constituted by the Fukuharizai 17.

  The main beam member 16 includes a long central member 18 and end members 19 respectively connected to both ends of the central member 18 by fastening or welding with screws. Each end member 19 is bridged between an upper portion of the column 13 (a portion below the column 13 to which the curved material 15 is connected) and an end of the central member 18 and extends in the horizontal direction in the left-right direction. And a reinforcing member obliquely bridged between a longitudinally intermediate portion of the connecting beam member 19a and a vertically intermediate portion of the column 13 (a portion below the portion of the column 13 to which the connecting beam member 19a is connected). 19b. The center member 18 and the end member 19 of each of the columns 13, each girder member 14, each bending member 15, each sub beam member 17, and each main beam member 16 have a circular or rectangular outer cross-sectional shape, and are made of iron or iron. It is made of a metal tube material such as aluminum.

  The plurality of foundations 12 on which the columns 13 are erected are composed of a group of foundations buried on the site 11 at 10 or 11 locations at equal intervals of about 3 meters in the front-rear direction so as to line up in the front-rear direction. Two rows are arranged side by side, and these basic groups are separated from each other by about 6 meters in the left-right direction. Then, a flexible main vinyl sheet 22 is stretched so as to cover the entire members such as the columns 13 and the bending members 15 constituting the framework of the cultivation house 10 from the outside. Further, a pair of left and right sub-vinyl sheets 23, 23 is stretched so as to extend obliquely upward from both left and right ends of the main beam member 16 (ends of the joint beam member 19a of the end member 19). These secondary vinyl sheets 23 are provided for light shielding or heat retention, and are attached so that they can be opened and closed by an opening and closing mechanism (not shown).

  As the opening / closing mechanism, although not shown, for example, a winding drum capable of winding the lower edge of the sub vinyl sheet 23, a movable portion fixed to the upper edge of the sub vinyl sheet 23, And a guide section for guiding the section to move obliquely along the direction in which the auxiliary vinyl sheet 23 extends, wherein the movable section moves along the guide section and the winding drum rotates around its axis. Can be mentioned. In the case of this opening / closing mechanism, when the sub vinyl sheet 23 is opened, the lower edge side of the sub vinyl sheet 23 is taken up by the winding drum, and when the sub vinyl sheet 23 is closed, the winding drum rotates in the opposite direction to rotate. It is configured such that the lower edge side of the wound secondary vinyl sheet 23 is returned toward the upper edge side.

As other opening and closing mechanisms, although not shown, for example, a movable part fixed to the upper edge of the sub vinyl sheet 23 and the movable part move obliquely along the direction in which the sub vinyl sheet 23 extends. A first guide portion for guiding, and a second guide portion for guiding both edges of the sub vinyl sheet 23 in the front-rear direction so as to move obliquely along the direction in which the sub vinyl sheet 23 extends, and the movable portion is provided with a second guide portion. One that is configured to move along the first guide portion and to move both edges in the front-rear direction of the auxiliary vinyl sheet 23 along the second guide portion can be given. In the case of this opening / closing mechanism, when the sub-vinyl sheet 23 is opened, the sub-vinyl sheet 23 is folded in a bellows shape and contracts, and when the sub-vinyl sheet 23 is closed, the sub vinyl sheet 23 which has been folded and contracted is folded. Be expanded.
In any of the opening / closing mechanisms described above, when the pair of sub-vinyl sheets 23 is closed, their upper edges approach each other at a height position between the main beam member 16 and the sub-beam member 17.

  The plant cultivation apparatus 20 is installed in the cultivation house 10, and includes a plurality of gantry 24, a pair of left and right fixed cultivation tanks 25, 25 respectively installed above each gantry 24, and a pair of left and right fixed cultivation tanks. A movable cultivation tank 26 is disposed directly above the center in the left-right direction between the cultivation tanks 25, 25, and an elevating device 30 that supports each movable cultivation tank 26 so as to be able to move up and down in the vertical direction. The pair of fixed cultivation tanks 25, 25 are arranged side by side on the upper surface of each gantry 24 in a state where they are adjacent to each other in parallel in a horizontal direction at a predetermined interval. Each movable cultivation tank 26 extends in parallel with a pair of left and right fixed cultivation tanks 25, 25 arranged directly below them in plan view. Each stand 24 includes a box-shaped cultivation tank support 24a that is long in the front-rear direction, and legs 24b that support the cultivation tank support 24a. The pedestals 24 are installed at four separate locations, respectively, and the length of each pedestal 24 in the front-rear direction is set to about 28 meters.

The gantry 24 has a width in the left-right direction of about 35 cm, a height of about 110 cm, and a space between centers in the width direction of the gantry 24 adjacent in the left-right direction is set to about 130 cm. In addition, the height of the upper surface of the gantry 24 is set in consideration of the height at which the fixed cultivation tank 25 installed on the upper surface is positioned and the height of a person, and is preferably about 90 cm to 130 cm. .
As shown in FIG. 2, each cultivation tank support 24a is filled with chaff M, and the other three parts corresponding to the parts shown in FIG. 2 are similarly configured.
In the site 11, passages 27 are provided between the columns 13 and the gantry 24 adjacent to each other in the left-right direction and between the gantry 24 adjacent to each other in the left-right direction, and a passage 27 between the column 13 and the gantry 24 is provided. Is set to about 75 cm, and the width of the passage 27 between the mounts 24 is set to about 87 cm. Thus, a plurality of the gantry 24 and the passages 27 each having the fixed cultivation tank 25 installed on the upper surface are provided on the site 11 such that they are alternately arranged in the left-right horizontal direction.

In this embodiment, each fixed cultivation tank 25 and each movable cultivation tank 26 have the same dimensions, except for members (lid member 41 and guide member 49 described later) bonded to both ends in the front-rear direction. And structure. Therefore, first, the configuration of the fixed cultivation tank 25 will be described in detail with reference to FIGS. On the other hand, the configuration of the movable cultivation tank 26 will be described with reference to FIGS. 8 and 9, but the same reference numerals will be used for the same or equivalent members and parts as those described for the fixed cultivation tank 25. The detailed description is omitted, and points different from the fixed cultivation tank 25 will be mainly described in detail.
Each fixed cultivation tank 25 includes an outer pipe 28 extending in the front-rear direction, a drain pipe 31 extending in parallel with the outer pipe 28 and installed at a lower part in the outer pipe 28 (see FIG. 5), and an upper part of the outer pipe 28. And a water supply pipe 33 extending parallel to the outer pipe 28 and installed above the nursery 32. The outer tube 28 has a length of about 4 meters, an outer diameter of about 114 mm, and a thickness of about 3.3 mm, and is formed by connecting seven cylindrical short pipes 34 made of vinyl chloride in the longitudinal direction. ing. In the upper part of each short tube 34, circular openings 34a (see FIG. 5) each having a diameter of about 60 mm are drilled at a plurality of positions at equal intervals of about 250 mm in the longitudinal direction.

  Further, joint members 35 made of vinyl chloride are respectively attached to both ends of each short pipe 34. As shown in a partially enlarged manner in FIG. 4, each joint member 35 includes a cylindrical portion 35 a having one end fitted to the outer peripheral portion of the end of the short pipe 34 and bonded with an adhesive, An annular flange 35b formed so as to integrally increase the diameter from the outer circumference of the other end of 35a. An annular seal member 36 for sealing in a liquid-tight manner is provided between each pair of opposed flange portions 35b, 35b. Each flange 35b and each seal member 36 are provided with a plurality of bolt insertion holes at equal intervals in the circumferential direction, respectively. A plurality of short pipes 34 are connected to form a single long outer pipe 28 by screwing and fastening a nut 38 to a bolt 37 inserted into each bolt insertion hole in a state of being interposed and joined. Have been.

  For convenience of drawing, an example is shown in which four bolts 37 and four nuts 38 are used for each pair of flanges 35b, 35b, but the number of them is large (for example, six or eight each). Use) is more desirable from the viewpoint of ensuring the liquid tightness of the seal member 36. The length of the outer tube 28 thus configured is set to about 28 meters. One end of a joint member 35 is fitted to the outer peripheral portion of the end of the short tube 34 located at each end of the outer tube 28 and bonded with an adhesive, and is connected to the flange 35b at the other end with a disk-like shape. In a state where the lid member 41 and the sealing member 36 are interposed therebetween and joined together, similarly to the above-described fastening of the pair of joint members 35, a nut 37 is inserted into the bolt 37 inserted into each bolt insertion hole. 38 are screwed and fastened. The outer diameter and thickness of the lid member 41 are set to the same dimensions as the flange 35b of the joint member 35, respectively.

  The drain pipe 31 has a length of about 4 meters, an outer diameter of about 54 mm, a thickness of about 2 mm, and a plurality of polyethylene short pipes 42. Is configured. As shown in FIG. 6, in each short pipe 42, an infinite number of communication holes 42a are formed uniformly throughout the entire area, and the opening ratio thereof is set to about 10 to 20%. A hole ratio other than this can be set as appropriate. Further, at one end of each short pipe 42, an enlarged diameter part 42b slightly larger in diameter than other parts is formed, and the enlarged diameter part 42b is connected to the other end of the other short pipe 42. By sequentially fitting, a plurality of short pipes 42 are connected to form one long drain pipe 31. The length of the drain pipe 31 thus configured to be long is set to about 28 meters.

  Returning to FIG. 5, the nursery 32 has a columnar sponge 43 having a water retention property, a container 44 in which the sponge 43 is stored, and a certain gap 45 between the sponge 43 and the bottom surface in the container 44. And a bottom plate 46 that is arranged and supports the bottom surface of the sponge 43. The container 44 has a bottomed cylindrical tube portion 44a that can be inserted into the opening portion 34a of each short tube 34 of the outer tube 28, and has a diameter that is integrally increased from the outer periphery of the upper end edge of the tube portion 44a. And a drainage hole 44c formed in the lower side surface of the container 44 and communicating the space of the gap 45 with the outside of the container 44. A plurality of small holes 46a are formed in the bottom plate 46 uniformly over the entire plate surface. Instead of such a configuration, the bottom plate 46 is omitted, and a number of small holes are uniformly formed throughout the entirety of the cylindrical portion 44a of the container 44 to communicate the inside and outside of the cylindrical portion 44a. The sponge 43 may be accommodated until it comes into contact with the bottom surface of the sponge 44.

  Each sponge 43 is formed in a cubic shape having a side length of about 50 mm. Each container 44 has a height in the vertical direction of about 65 millimeters and an inner diameter of about 50 millimeters, is inserted into each opening 34a of the outer tube 28, and is inserted from each opening 34a into the upper part of each container 44. Are placed on the drain pipe 31 in a protruding state. Then, the seedlings of the strawberry P are planted and cultivated in the sponge 43 stored in a compressed state in the container 44. FIG. 7 shows the fixed cultivation tank 25 in which the strawberry P is cultivated. However, the movable cultivation tank 26 in which the strawberry P is cultivated is the same as that in FIG. Are not shown.

The water supply pipe 33 is formed of a flexible and long tubular member, and small-diameter water supply holes 33a (see FIG. 5) are formed at respective positions at equal intervals of about 250 mm in the longitudinal direction. Has been established. The water supply pipe 33 is installed on the upper surface of the flange 44b of the container 44 with the water supply holes 33a positioned directly above the sponges 43 of the seedbeds 32.
The outer pipe 28 of each fixed cultivation tank 25 is arranged so as to form a so-called water gradient by inclining the rear end thereof slightly lower than the front end. That is, the outer pipe 28 of each fixed cultivation tank 25 is arranged so as to be inclined so as to become lower from one end side (front end side) to the other end side (rear end side). The gradient is set so that the height difference between both ends of the 30-meter length is 5 cm, but is not limited to this setting, and the water flows from the front end to the rear end of the outer tube 28 due to gravity. A gradient other than this setting may be appropriately set as long as the water naturally flows down gently by the action.

  Further, although not shown, one end of one water supply pipe constituting the base end of the water supply pipe 33 is connected to the water supply tank. At a halfway in the longitudinal direction of the water supply source pipe, a plurality of water supply pipes 33 are branched, and the branched plurality of water supply pipes 33 are distributed to the fixed cultivation tanks 25 and the movable cultivation tanks 26, respectively. ing. The water stored in the water supply tank or the water in which the fertilizer is dissolved is supplied to each fixed cultivation tank 25 and each nursery bed 32 of each movable cultivation tank 26 through a water supply hole 33a of each water supply pipe 33 by a predetermined amount. Is configured. In addition, instead of a configuration in which one water supply pipe is branched into a plurality of water supply pipes 33, a water supply pipe for each fixed cultivation tank 25 and a water supply pipe for each movable cultivation tank 26 are separately provided, These water supply pipes may be branched into a plurality of water supply pipes 33 for each fixed cultivation tank 25 and a plurality of water supply pipes 33 for each movable cultivation tank 26.

In addition, the water supply source pipe is not branched into a plurality of water supply pipes 33..., And regardless of the type of the fixed cultivation tank 25 and the movable cultivation tank 26, the plurality of water supply pipes 33. And water may be supplied by piping. The water supplied to each seedbed 32 is absorbed by the sponge 43 in the container 44, and excess water passes through the plurality of small holes 46 a of the bottom plate 46 and the gaps 45 and is discharged from the drain holes 44 c into the outer pipe 28. Is discharged. The water discharged into the outer pipe 28 and accumulated in the lower portion of the outer pipe 28 flows into the drain pipe 31 from the infinite communication holes 42 a of the drain pipe 31. As described above, since the outer pipe 28 of each fixed cultivation tank 25 is arranged at an inclination, the drain pipe 31 installed at the lower part of the outer pipe 28 of each fixed cultivation tank 25 is also inclined at the same time. Due to the inclination, the water flowing into the drain pipe 31 also flows from the front end to the rear end by the action of gravity.
The drain pipe 31 is inserted into the outer pipe 28 until its front end abuts on the inner surface of the front lid member 41 or reaches near the inner surface. The rear end of the drain pipe 31 is connected in the outer pipe 28 to one end of a drain pipe 47 which is inserted in a liquid-tight manner into a through hole formed in a lower portion of the rear lid member 41. Water that has flowed into the drainage pipe 47 from the pipe 31 is discharged to the outside via the other end of the drainage pipe 47.

  On the other hand, as shown in FIGS. 8 and 9, one end of the joint member 35 is fitted to the outer peripheral portion of the end of the short pipe 34 located at both ends of the outer pipe 28 of each movable cultivation tank 26. The pair of joint members 35 in the fixed cultivation tank 25 described above are bonded with an adhesive, and the flange 35b on the other end and the guide member 49 are joined with a seal member 36 interposed therebetween. , 35, a nut 38 is screwed and fastened to the bolt 37 inserted into each bolt insertion hole. Similarly to the outer tube 28 of each fixed cultivation tank 25, the outer tube 28 of each movable cultivation tank 26 is also arranged so that the rear end thereof is slightly lower than the front end. That is, the outer pipe 28 of each movable cultivation tank 26 is arranged so as to be inclined so as to become lower from one end side (front end side) to the other end side (rear end side).

  The drain pipe 31 of the movable cultivation tank 26 is inserted into the outer pipe 28 until its front end abuts on the inner surface of the front guide member 49 or reaches near the inner surface. The rear end of the drain pipe 31 is connected in the outer pipe 28 to one end of a drain pipe 50 which is inserted in a through hole formed in the lower part of the rear guide member 49 in a liquid-tight manner. The piping 50 extends downward with a slack in the middle part toward the other end, and is connected to a longitudinal middle part of the drain pipe 47 of the fixed cultivation tank 25. As a result, the water flowing into the drainage pipe 50 from the drainage pipe 31 of the movable cultivation tank 26 merges with the water flowing in the drainage pipe 47 connected to the fixed cultivation tank 25 and is discharged to the outside. In addition, at least the slackened portion of the drainage pipe 50 is formed of a flexible tubular member. With this and the slackness, the drainage pipe 50 is provided with a drainage as the movable cultivation tank 26 moves up and down. Even if the upper end of the pipe 50 moves up and down, the up and down movement is absorbed by the slackened portion of the drainage pipe 50, and the drainage pipe 47 of the fixed cultivation tank 25 is not displaced.

  As shown in FIGS. 1, 10, 11 and 12, the elevating device 30 for elevating each movable cultivation tank 26 includes a rotating shaft 48 extending in the front-rear direction and a plurality of bearings 51 supporting the rotating shaft 48. , A plurality of wires 52a, 52b, 52c, 52d, a plurality of winding drums 53 for winding these wires 52a, 52b, 52c, 52d, respectively, spaced apart in the vertical direction and in the left-right direction when viewed from the front. , A plurality of pulleys 54a, 54b, 54c, and 54d arranged in parallel to each other, a plurality of pulleys 55a, 55b, 55c, 55d, and a winch 56 disposed at intervals in the left-right direction. (See FIG. 11). Each of the bearings 51 is fixed to a bracket 57 which is connected to a middle part of each sub beam member 17 in the left-right direction by welding.

  Each of the pulleys 54 a, 54 b, 54 c, and 54 d is rotatable on a support member 58 fixed below the corresponding winding drum 53 and at the longitudinal center of the central member 18 of each main beam 16. It is supported by. Each pulley 54a and each pulley 54d are disposed close to each other in the left-right direction when viewed from the front, and each pulley 54b and each pulley 54c are disposed close to each other in the left-right direction when viewed from the front. Each of the pulleys 54b and 54c is disposed at a certain interval directly below each of the pulleys 54a and 54d. Each of the pulleys 55a, 55b, 55c, and 55d is rotatably supported by a support member 59 that is fixed to the middle part of the central member 18 of each main beam member 16 in the longitudinal direction while being separated from each other.

In FIG. 1, the rotary shaft 48, the bearing 51, the winding drum 53, the pulleys 54a, 54b, 54c, 54d, 55a, 55b, 55c, 55d, the support member 58, and the plurality of support members 59 are illustrated for convenience of drawing. Above, the scale ratios are different from those of other members and are drawn relatively large.
As shown in FIGS. 10 and 11, a plurality of short shafts 61 having a length of about 3 meters and a shorter shaft are connected through a plurality of shaft joints 62 so that the rotating shaft 48 is moved back and forth. One rotating shaft 48 that is long in the direction is configured. The rotating shaft 48 is rotatably supported by a pair of front and rear bearings 51 at a plurality of portions in the longitudinal direction except for both end portions thereof, and the front end portion is rotatably supported by one bearing 51 ( (See FIGS. 12A and 12B).

  Further, a pair of winding drums 53, 53 are mounted between the pair of bearings 51, 51 on the rotating shaft 48, respectively. Each of the winding drums 53 is configured such that two wires (wires 52a and 52b and wires 52c and 52d) are simultaneously wound, and one of the pair of winding drums 53 and 53 is wound. The base ends of the wires 52a and 52b are connected to the drum 53, respectively, and the base ends of the wires 52c and 52d are connected to the other winding drum 53, respectively. Each wire 52a is connected to the movable cultivation tank 26 located at the left end, each wire 52b is connected to the movable cultivation tank 26 located second from the left, and each wire 52c is connected to the movable cultivation tank 26 located third from the left. Are connected, and each wire 52d is connected to the movable cultivation tank 26 located at the right end. Thus, a pair of wires 52a, 52b, 52c, 52d is respectively connected to each pair of winding drums 53, 53.

  Each pulley 54a guides each wire 52a hanging downward from the winding drum 53 corresponding to each pulley 54a to the left. Each of the pulleys 54b guides each of the wires 52b that are fed downward from the corresponding winding drum 53 to the left. Each pulley 54c guides each wire 52c hanging downward from the winding drum 53 corresponding to the pulley 54c to the right. Each pulley 54d guides each wire 52d hanging downward from the corresponding winding drum 53 to the right.

  Each pulley 55a guides each wire 52a extending from each corresponding pulley 54a downward, and each pulley 55b guides each wire 52b extending from each corresponding pulley 54b downward. Each pulley 55c guides each wire 52c extending from each corresponding pulley 54c downward, and each pulley 55d guides each wire 52d extending from each corresponding pulley 54d downward. The lower end of each of the wires 52a, 52b, 52c, 52d is wound around the outer periphery of the lower portion of the outer tube 28 of the corresponding movable cultivation tank 26, and the end portion is directly above the outer tube 28, and the respective wire 52a, 52b , 52c, and 52d are respectively connected to intermediate portions in the longitudinal direction. In addition, the fixed position of each pulley 55a, 55b, 55c, 55d in the left-right direction with respect to the center member 18 of each main beam member 16 is such that each movable cultivation tank 26 connected to each wire 52a, 52b, 52c, 52d has a left-right position. They are positioned so as to be located directly above the center in the left-right direction between the pair of fixed cultivation tanks 25, 25.

  The winch 56 is assembled to the end of the rotating shaft 48 via the worm speed reducer 56a. By pulling the chain 56b of the winch 56 in one of the vertical directions, the rotation shaft 48 rotates around its axis, and the wires 52a, 52b, 52c, 52d are simultaneously wound on the winding drums 53, respectively. Is pulled to the other side, the rotating shaft 48 rotates in the opposite direction, and the wires 52a, 52b, 52c, 52d are simultaneously unwound from the winding drums 53. Therefore, by operating one winch 56, the four movable cultivation tanks 26 can be raised and lowered at the same time. The winch 56 may be a manual type or a movable type.

  The movable cultivation tank 26 can be raised and lowered from the height position H1 to the height position H2 by the lifting device 30 configured as described above (see FIG. 1), and can be arbitrarily selected from the height position H1 to the height position H2. The movable cultivation tank 26 can be kept stationary at the height position. Each movable cultivation tank 26 is suspended by each of the wires 52a, 52b, 52c, 52d so as to be parallel to the corresponding pair of fixed cultivation tanks 25, 25, respectively, as viewed from the left and right directions. I have. Such a parallel state between each movable cultivation tank 26 and each pair of fixed cultivation tanks 25, 25 is maintained not only while each movable cultivation tank 26 is moving up and down, but also at rest. In FIG. 1, each movable cultivation tank 26 located at the height position H1 is indicated by a solid line, and each movable cultivation tank 26 located at the height position H2 is indicated by a two-dot chain line.

  8 and 9, guide members 49 are provided at both ends of the movable cultivation tank 26, respectively. The guide member 49 includes a plate-shaped guide portion 49a extending in the front-rear horizontal direction, and a disk-shaped flange portion 49b having the same shape and structure as the lid member 41 of the fixed cultivation tank 25. A circular guide hole 49c is formed in the guide portion 49a. Similarly to the fastening of the pair of joint members 35 of the fixed cultivation tank 25, nuts 38 are screwed into bolts 37 inserted into the bolt insertion holes, and fastened to the joint members 35 at both ends of the movable cultivation tank 26. ing. At a position corresponding to the guide portion 49a of each guide member 49 on the site 11, circular guide rails 63 extending in the vertical direction are erected. By inserting the guide rails 63 into the guide holes 49c of the guide members 49 at both ends of each movable cultivation tank 26, each movable cultivation tank 26 is guided by the pair of front and rear guide rails 63, 63 to move up and down. Therefore, it is possible to stably move up and down without tilting or rattling.

  The guide rail 63 may be attached to the support 13 via a bracket without standing on the site 11. In addition, instead of the configuration in which the movable cultivation tank 26 moves up and down along the guide rail 63 by inserting the guide rail 63 into the guide hole 49c of the guide member 49, the cross-sectional shape is U-shaped or U-shaped. One of the C-shaped concave portion and the convex portion engaging with the concave portion is provided on the guide member at both ends of the movable cultivation tank 26, and the other is provided on the guide rail, and the concave portion is provided. The movable cultivation tank 26 may be moved up and down along the guide rail in a state where the projections are engaged.

  When growing strawberries P using the plant cultivation apparatus 20 configured as described above, seedlings of strawberries P are respectively planted in the sponges 43 of the fixed cultivation tanks 25, and then the movable cultivation tanks 26 are lowered. In this state, seedlings of strawberries P are planted on the sponges 43, respectively. Then, water is discharged from the water supply hole 33a of each water supply pipe 33 at a rate of about 30 cubic centimeters per minute, and the water is supplied to each fixed cultivation tank 25 and each nursery bed 32 of each movable cultivation tank 26. When the fertilizer is dissolved in the water, the nutrients necessary for the growth of the strawberry P seedling contained in the fertilizer are absorbed, so that the strawberry P seedling grows smoothly. In addition, the sponge 43 retains only a predetermined amount of water, and discharges excess water to the outside of the sponge 43. The water discharged from the sponge 43 of each fixed cultivation tank 25 and each movable cultivation tank 26 and accumulated in the lower part of the outer pipe 28 flows into the drain pipe 31 and then is discharged from the drain pipe 47 and the drain pipe 50 to the outside. Is discharged.

  When it is desired to make the seedlings of the strawberry P in each fixed cultivation tank 25 and each movable cultivation tank 26 easy to receive sunlight, the pair of auxiliary vinyl sheets 23, 23 are opened and each movable cultivation tank 26 is placed at the height position. Increase to H1. This prevents the seedlings of the strawberry P planted in the sponge 43 of the fixed cultivation tub 25 from being shaded by the movable cultivation tub 26 and from being exposed to sunlight. In addition, it is desirable that the fixed cultivation tanks 25 and the movable cultivation tanks 26 are arranged so that their longitudinal directions face the north and south directions. By doing so, the strawberry P seedlings in the fixed cultivation tanks 25 are prevented from being shaded by the movable cultivation tanks 26 most of the time during which the sun rises from the east and sinks to the west. When the sunshine is too strong or when it is necessary to keep the surroundings of each fixed cultivation tank 25 and each movable cultivation tank 26, the pair of auxiliary vinyl sheets 23, 23 is kept closed.

  When the strawberry P grows and it is time to harvest, the strawberry P in each fixed cultivation tank 25 is picked from each passage 27 while being installed on the gantry 24. When harvesting the strawberries P in the movable cultivation tanks 26, the movable cultivation tanks 26 are lowered to a height (for example, the height position H2) where the worker can easily work, and the strawberries P are removed from the passages 27. Pick out. In this case, since each of the fixed cultivation tanks 25 and each of the movable cultivation tanks 26 is located near the passage 27, the strawberries P in both the cultivation tanks 25 and 26 can be easily picked.

According to the plant cultivation apparatus 20 according to the present embodiment as described above, each fixed cultivation tank 25 is stably installed on the upper surface of each gantry 24 installed on the site 11 so that each fixed cultivation tank 25 is stably provided. Since it is installed, it is easy to perform operations such as care and harvesting of strawberries P grown in each fixed cultivation tank 25.
Further, the plant cultivation apparatus 20 includes a fixed cultivation tank 25 installed on the upper surface of the gantry 24, and a movable cultivation tank 26 disposed right above the fixed cultivation tank 25 and extending in parallel with the fixed cultivation tank 25 in plan view. Therefore, the cultivation amount of the strawberry P per area on the site 11 in the cultivation house 10 and thus the harvest amount can be increased.

Further, a mount 24 on which the fixed cultivation tank 25 is installed extends along the passage 27, and a movable cultivation tank 26 extends directly above the fixed cultivation tank 25 in parallel. For this reason, the worker performs care and harvesting while moving on the same passage 27 for both the strawberry P cultivated in the fixed cultivation tank 25 and the strawberry P cultivated in the movable cultivation tank 26. Since the movable cultivation tank 26 is not suspended right above a person or an operator who passes through the passage 27, there is no fear that the movable cultivation tank 26 may cause a feeling of oppression or anxiety.
In addition, since the plant cultivation device 20 includes the elevating device 30 that vertically moves the movable cultivation tank 26 in a suspended state, the position of the movable cultivation tank 26 in the vertical direction may be changed as necessary. Can be. For this reason, the movable cultivation tank 26 can be raised to a high position separated from the fixed cultivation tank 25 so that the strawberries P cultivated in the fixed cultivation tank 25 can be easily exposed to sunlight, while the strawberry P is cultivated in the movable cultivation tank 26. When performing operations such as care and harvesting of the strawberry P, the movable cultivation tank 26 can be lowered to facilitate the operation.
Further, by rotating one rotating shaft 48, the four movable cultivation tanks 26 can be moved up and down at the same time.

The movable cultivation tank 26 is inclined at both ends of the movable cultivation tank 26 because the movable cultivation tank 26 is tilted because it is provided with a pair of guide members 49, 49 that are guided by the pair of guide rails 63, 63 and move in the vertical direction. It can move up and down stably without rattling.
Further, since the pair of fixed cultivation tanks 25 and 25 are arranged side by side on the upper surface of the gantry 24, the number of strawberries P grown in the fixed cultivation tank 25 can be increased. In addition, since the movable cultivation tank 26 is disposed right above the center between the pair of fixed cultivation tanks 25, 25, sunlight that enters obliquely into the strawberry P grown in the pair of fixed cultivation tanks 25, 25 is movable. It becomes difficult to be blocked by the cultivation tank 26. That is, the pair of fixed cultivation tanks 25 and 25 and the movable cultivation tank 26 are respectively positioned at the vertices of an isosceles triangle when viewed from the front-back direction. It becomes easy to irradiate all parts of the tanks 25, 25 and the movable cultivation tank 26. Thereby, the seedlings of the strawberry P in each of the cultivation tanks 25 and 26 can be grown in a favorable state.

Further, each cultivation tank 25, 26 is provided with a seedbed 32 whose lower part is installed in the outer pipe 28 and whose upper part projects from the opening 34a of the outer pipe 28, and a drain pipe 31 that is installed in the lower part of the outer pipe 28, Since the water supply pipe 33 is provided above the nursery bed 32 and has a water supply hole 33 a for supplying water to the nursery bed 32, hydroponic cultivation can be suitably performed, and each cultivation tank 25 is provided. , 26 can be made compact.
In addition, since the outer pipes 28 of the cultivation tanks 25 and 26 are arranged so as to be lower from one end side (front end side) to the other end side (rear end side), the outer pipes 28 of the respective cultivation tanks 25 and 26 are inclined. , 26 can be caused to flow naturally from the one end (front end) of the outer tube 28 toward the other end (rear end) of the outer tube 28 by the action of gravity. By draining the water to the outside via the pipes 47 and 50, the water can be smoothly drained.

In addition, the pedestal 24 on which the pair of fixed cultivation tanks 25, 25 are installed and the passage 27 are alternately arranged side by side on the site 11, and the movable cultivation tank can be moved up and down directly above the pair of fixed cultivation tanks 25, 25. Since 26 is located, the passage 27 is located near any position of each of the cultivation tanks 25 and 26, and it is easy to perform operations such as care and harvesting of the strawberries P in each of the cultivation tanks 25 and 26. .
Furthermore, since a pair of openable and closable secondary vinyl sheets 23, 23 for shading or heat insulation are installed at the upper part in the cultivation house 10, light and heat insulation in the cultivation house 10 can be properly performed. Can be.

(Second embodiment)
FIG. 13 shows a cultivation house 10A in which a plant cultivation apparatus 20A according to a second embodiment of the present invention is installed, while penetrating a member (main vinyl sheet 22) that covers the surface so that the inside can be seen, and a part thereof. The members are cut away, and the near side in the figure is the front and the far side is the rear. In FIG. 12, the scale ratio of the rotating shaft 48, the bearing 51, the winding drum 53, the pulleys 55a, 55b, 55c, 55d, and the plurality of support members 59 is different from other members for convenience of drawing. It is relatively large. This plant cultivation device 20A includes a lifting device 30A instead of the lifting device 30 of the plant cultivation device 20 according to the above-described first embodiment, and the rest is the plant according to the first embodiment. It is configured similarly to the cultivation device 20. Therefore, in the following description, the same reference numerals are given to the same or equivalent members and parts as those described in the first embodiment, detailed description is omitted, and the first embodiment is omitted. The differences from the plant cultivation apparatus 20 according to the first embodiment will be mainly described in detail.

  The elevating device 30A is attached to each of the rotating shafts 48, a pair of rotating shafts 48, 48 that are disposed apart from each other in the left-right direction, a plurality of bearings 51 that rotatably support each rotating shaft 48, and the like. , A plurality of wires 52a, 52b, 52c, 52d, and a plurality of pulleys 55a, 55b, 55c, 55d, respectively, and a pair of winches ( (Not shown)). Each winch is configured similarly to the winch 56 described in the first embodiment, and includes a worm speed reducer and a chain. Bearings 51 are fixed to brackets (not shown) respectively bonded to the pair of left and right end members 19 of each main beam member 16 by welding, and the rotating shafts 48 are rotatably supported by these bearings 51. Have been.

  A plurality of winding drums 53 are attached to each rotating shaft 48, and the base ends of the wires 52a and 52b are respectively connected to the winding drums 53 of the rotating shaft 48 arranged on the left side. The base ends of the wires 52c and 52d are respectively connected to the winding drums 53 of the rotating shaft 48 arranged on the right side. Each wire 52a is connected to the movable cultivation tank 26 located at the left end, each wire 52b is connected to the movable cultivation tank 26 located second from the left, and each wire 52c is connected to the movable cultivation tank 26 located third from the left. Are connected, and each wire 52d is connected to the movable cultivation tank 26 located at the right end.

  Each of the pulleys 55a, 55b, 55c, and 55d is rotatably supported by a support member 59 that is fixed to the middle part of the center member 18 of each main beam member 16 in the longitudinal direction while being separated from each other. Each pulley 55a guides each wire 52a extending from each corresponding winding drum 53 of the left rotating shaft 48 downward, and each pulley 55b extends from each corresponding winding drum 53 of the left rotating shaft 48. Each wire 52b is guided downward. Each pulley 55c guides a wire 52c extending from the corresponding winding drum 53 of the right rotating shaft 48 downward, and each pulley 55d guides a wire 52d extending from the winding drum 53 of the right rotating shaft 48. Leading down. The lower ends of the wires 52a, 52b, 52c, 52d are connected to the outer tubes 28 of the corresponding movable cultivation tank 26, respectively. In addition, the fixed position of each pulley 55a, 55b, 55c, 55d in the left-right direction with respect to the center member 18 of each main beam member 16 is determined by each movable cultivation tank 26 connected to each wire 52a, 52b, 52c, 52d. They are positioned so as to be located directly above the center in the left-right direction between the pair of fixed cultivation tanks 25, 25.

The respective winches are assembled to the respective rotating shafts 48 via worm speed reducers. By pulling the chain of the left winch in one of the vertical directions, the left rotary shaft 48 rotates around its axis, and the wires 52a and 52b are simultaneously wound on the corresponding winding drums 53. By pulling the chain to the other side, the left rotating shaft 48 rotates in the opposite direction, and the wires 52a and 52b are simultaneously unreeled from the corresponding winding drums 53.
On the other hand, by pulling the chain of the right winch in one of the vertical directions, the right rotary shaft 48 rotates around its axis, and the wires 52c and 52d are simultaneously wound on the corresponding winding drums 53. When the chain is pulled to the other side, the right rotating shaft 48 rotates in the opposite direction, and the wires 52c and 52d are simultaneously unreeled from the corresponding winding drums 53.
Therefore, by operating each winch individually, the two movable cultivation tanks 26 on the left side and the two movable cultivation tanks 26 on the right side can be moved up and down separately.

Also in this embodiment, it is needless to say that the same operation and effect can be achieved with the same or equivalent configuration as that described in the first embodiment. In addition to the above, the operation and effect of the plant cultivation apparatus 20A according to the second embodiment are further described. Each rotation is performed by each bearing 51 fixed to the main beam 16 disposed at a position lower than the sub beam 17. Since the shaft 48 is supported, there is an effect that work at a high place near the sub beam member 17 is not required.
Further, since the respective rotating shafts 48 and the respective winches of the elevating device 30A are arranged symmetrically apart from each other in the left-right direction, an effect that the weight balance is improved is also produced. Further, on the left and right end members 19 of the main beam member 16 disposed at a position lower than the sub beam member 17, two rotation shafts 48 each having a winding drum 53 attached thereto are allocated to the left and right. Therefore, there is an effect that the entire length of each of the wires 52a, 52b, 52c, 52d can be reduced.

In addition, the present invention is not limited to the above embodiments, and can be appropriately modified within a range not contrary to the gist or idea of the invention which can be read from the entirety of the claims and the specification. The plant cultivation device after the change is also included in the technical scope of the present invention.
For example, as the plant cultivated by the plant cultivation apparatuses 20 and 20A, the strawberry P has been described as an example. However, the present invention is not limited thereto, and a flower such as an herb or a vegetable such as a lettuce may be cultivated.
In each embodiment, the external shape of the cross section of the drain pipe 31, the short pipe 34 constituting the outer pipe 28, the joint member 35, the cylindrical portion 44 a of the container 44, and the shape of the opening 34 a of the short pipe 34 are described. Are all circular. However, the present invention is not limited to this, and at least any one of them may be formed into a shape other than a circle such as an ellipse or a rectangle.
In addition, the example in which the opening portions 34a of the outer tube 28 are formed at a plurality of positions at equal intervals is shown, but the present invention is not limited to this, and one opening formed along the longitudinal direction of the outer tube 28 is shown. It may be a long opening.

  Further, in the plant cultivation apparatuses 20 and 20A of the above-described embodiments, a pair of fixed cultivation tanks 25 and 25 installed on the upper part of the gantry 21 and a position directly above the center between the pair of fixed cultivation tanks 25 and 25 are provided. Four sets of cultivation tanks including the arranged movable cultivation tanks 26 are provided. The set may be reduced to 3 sets or less to configure a plant cultivation apparatus, or conversely, a set of cultivation tanks May be increased. For example, when the four sets of the cultivation tanks are regarded as one cultivation tank group, the cultivation tank groups may be arranged side by side in at least one of the left-right direction and the front-back direction. In this case, it is necessary to expand the cultivation house, but as a method, according to the juxtaposition of the cultivation tank group, the cultivation is performed by increasing the number of foundations 12 and columns 13 installed in the left-right direction or the front-back direction. There is a method to expand the site area of the house. When extending in the front-back direction in the case of this method, the length of the rotating shaft 48 is correspondingly increased, and the number of wires for suspending the movable cultivation tank 26 is also increased.

  As another method of expanding the cultivation house, the cultivation house 10 according to the first embodiment or the cultivation house 10A according to the second embodiment is adjacent to at least one of the left-right direction and the front-rear direction. And juxtaposing them. In this case, a plurality of the cultivation houses 10 according to the first embodiment may be provided in parallel, or the cultivation houses 10 according to the first embodiment and the cultivation houses 10A according to the second embodiment may be provided. They may be mixed and arranged side by side as appropriate. In addition, when it is desired that the spaces in the adjacent cultivation houses are always communicated with each other, the vinyl sheets forming the respective side surfaces of the adjacent cultivation houses may be removed.

  Further, the materials and dimensions of the members constituting each of the cultivation houses 10 and 10A and the plant cultivation apparatuses 20 and 20A described above are merely examples, and can be appropriately set to other materials and dimensions. Further, the plant cultivation apparatus according to the present invention may be not only hydroponic cultivation but also hydroponic cultivation for cultivating a plant using soil. In this case, irrespective of the type of the fixed cultivation tank 25 and the movable cultivation tank 26, at least one of all the cultivation tanks may be used as the nutrient solution cultivation tank, or the fixed cultivation tank 25 and the movable cultivation tank 26 may be used. Only one of the cultivation tanks and the tank 26 may be used as the nutrient solution cultivation. Further, the movable cultivation tank 26 located directly above the pair of fixed cultivation tanks 25, 25 may be configured as a pair of left and right or a pair of upper and lower ones, or one fixed cultivation tank 25 installed on the upper part of the gantry 21. It may be.

10, 10A: Cultivation house 11: Site 20, 20A: Plant cultivation apparatus 24: Stand 25: Fixed cultivation tank 26 ... Movable cultivation tank 27 ... Passage 28: Outer pipe 30, 30A ... Elevating device 31: Drain pipe 32: Nursery 33 ... water supply pipe 33a ... water supply hole 34a ... opening 42a ... communication hole 49a ... guide part 63 ... guide rail

Claims (4)

A plant cultivation apparatus including a plurality of cultivation tanks arranged along a passage provided on a site in a plant cultivation house,
A gantry installed on the site and extending along the passage,
A pair of fixed cultivation tanks that are installed on the upper surface of the gantry so as to be parallel to each other at predetermined intervals in the horizontal direction and extend along the gantry,
A movable cultivation tank that is arranged right above the center between the pair of fixed cultivation tanks and extends in parallel with the pair of fixed cultivation tanks in plan view,
An elevating device that vertically elevates the movable cultivation tank in a suspended state,
While having a pair of tubular guide rails arranged apart from each other and each extending in the vertical direction,
Each comprise a pair of guide portions of the both end portions of the movable cultivation tray,
A circular guide hole is formed in each of the pair of guide portions,
The plant , wherein each of the guide rails is inserted into each of the guide holes, whereby the pair of guide portions are guided by the pair of guide rails and are configured to be movable in a vertical direction. Cultivation equipment. The plant cultivation apparatus according to claim 1 ,
The pair of fixed cultivation tanks and the movable cultivation tanks,
A cylindrical outer tube having an opening formed on the upper surface,
A nursery where a lower part is installed in the outer tube and an upper part protrudes from the opening,
A drain pipe that is provided with a plurality of communication holes communicating the inside and outside and is installed at a lower part in the outer pipe,
A plant cultivation apparatus, comprising: a water supply pipe positioned above the nursery bed and provided with a water supply hole for supplying water to the nursery bed. The plant cultivation apparatus according to claim 2 ,
An outer tube of the pair of fixed cultivation tanks and the outer tubes of the movable cultivation tanks is arranged to be inclined so as to be lower from one end to the other end. In the plant cultivation apparatus according to any one of claims 1 to 3 ,
A plurality of the pedestal and the passage where the pair of fixed cultivation tanks are installed on the upper surface are respectively provided on the site so that they are alternately arranged in a horizontal direction,
Wherein a plurality of said movable cultivation tray extending parallel each said respective pair of fixed cultivation tray in a plan view while being arranged in the center directly above between each pair of fixed cultivation tray,
The lifting device for vertically moving in a state where the plurality of movable cultivation tanks are suspended respectively ,
The pair of guide rails respectively corresponding to the plurality of movable cultivation tanks,
A plant cultivation apparatus comprising: a pair of guide portions that are respectively guided by the pair of guide rails and are movable in a vertical direction at both ends of each of the plurality of movable cultivation tanks .

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