JP2011087563A - Device for circularly shifting cultivation shelf - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for circularly shifting cultivation shelves with which cultivation shelves adjacent to one another do not interfere when circularly shifting the cultivation shelves in spite of disposing a plurality of the cultivation shelves as closely as possible. <P>SOLUTION: The device for circularly shifting cultivation shelves includes: a plurality of endless conveyers 3A-3C to which a plurality of cultivation shelves 2 are connected and the circulation path for which is formed into a circular state; and a driving mechanism 4 which drives the endless conveyors 3A-3C to circularly shift the cultivation shelves 2. The cultivation shelves 2 adjacent to one another are connected to the endless conveyors 3A-3C, and the driving mechanism 4 drives a plurality of the endless conveyors 3A-3C independently to relatively broaden or narrow the intervals between the cultivation shelves 2 adjacent to each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cultivation shelf circulation moving device that circulates and moves a plurality of cultivation shelves.

  Conventionally, as a cultivation shelf moving apparatus used for a plant cultivation apparatus, as shown in Patent Documents 1 and 2, for example, a cultivation shelf is suspended and circulated along the vertical direction, or as shown in Patent Document 3, for example. Moreover, what makes a plurality of cultivation shelves circulate along the plane direction is considered.

  In these circulating movement apparatuses, all the cultivation shelves are connected to one set of common endless transporters on the left and right. In this structure, it is necessary to arrange | position to some extent so that the mutually adjacent cultivation shelf may not contact in the bending part or curved part in a circulation path | route.

  However, the cultivation shelf arrange | positioned on a circulation path is limited, and if the cultivation shelf is arrange | positioned in consideration of the contact in the said bending part or a curve part, the cultivation shelf which can be circularly moved by one circulation moving apparatus will be restrict | limited. Therefore, there is a problem that it is difficult to grow plants efficiently.

  Moreover, although it arrange | positions densely by reducing each cultivation shelf and making it difficult to contact in the bending part or curved part in a circulation path, since a cultivation shelf will be reduced in size, this also It is unsuitable for efficient plant growth.

  JP 58-198232 A   JP-A-60-227609   JP-A 63-49027

  Then, this invention was made | formed in order to solve the said problem at once, and when it arrange | positions several cultivation shelves as densely as possible, when circulating these cultivation shelves, it adjoins mutually. The main purpose is to prevent the cultivation shelf from interfering.

  That is, the cultivation shelf circulation moving device according to the present invention is a cultivation shelf circulation movement device that circulates and moves a plurality of cultivation shelves so that the plurality of cultivation shelves are connected and the circulation paths of these cultivation shelves are substantially the same. A plurality of endless transport bodies arranged in parallel and having a circular circulation path, and a drive mechanism that circulates and moves the plurality of cultivation shelves by driving the plurality of endless transport bodies, and the cultivation shelves adjacent to each other Are connected to different endless transport bodies, and the drive mechanism individually drives the plurality of endless transport bodies to relatively expand and contract the intervals between the adjacent cultivation shelves, and the plurality of endless transport bodies It is characterized in that the cultivation shelves adjacent to each other on the circulation path are prevented from contacting each other.

  If it is such, it is constituted so that a plurality of cultivation shelves may be circulated and shared by a plurality of endless transporters, and the plurality of endless transporters are individually driven, and the intervals between the cultivation shelves adjacent to each other Can be prevented from coming into contact with each other on the circulation path. That is, on the circulation path, the interval between the cultivation shelves adjacent to each other can be increased in, for example, a bent portion or a curved portion where the interval between the cultivation shelves adjacent to each other becomes narrow. Therefore, while arranging a plurality of cultivation shelves as densely as possible on the circulation path, the cultivation shelves adjacent to each other can be prevented from interfering with each other when the cultivation shelves are circulated. In addition, by circulating and moving the cultivation shelves, light from outside for photosynthesis can be uniformly applied to each cultivation shelf. Also, by moving the cultivation shelf, the boundary layer formed on the leaf surface of the plant along with photosynthesis can be efficiently disturbed without forcing the wind from the outside, and the supply of carbon dioxide to the leaf can be efficiently performed. It can be carried out. Moreover, by moving a cultivation shelf, a plant will shake, the secretion of a plant hormone (ethylene) will be accelerated | stimulated and the chief in lack of sunlight can also be prevented.

  In order to prevent the cultivation shelf from contacting on the circulation path, it is desirable that the cultivation shelf moves straight rather than moving in a curved line. In order to reduce the number of the endless transport bodies, the circulation path of the plurality of endless transport bodies has a substantially rectangular ring shape, and the drive mechanism drives the plurality of endless transport bodies individually to cultivate the shelf adjacent to each other. It is desirable to relatively expand and contract the intervals so that the cultivation shelves adjacent to each other at the four corners of the circulation path do not contact each other.

  In order to simplify the structure of the endless transport body, it is desirable that the endless transport body is composed of an endless chain whose circulation path is formed into a substantially rectangular ring by sprockets arranged at four corners.

  Each endless transport body preferably includes a pair of left and right endless chains and a plurality of support members that are horizontally spanned between the pair of left and right endless chains and suspendably swing the cultivation shelf. . If this is the case, the cultivation shelf suspended in the circular movement will oscillate, disturbing the boundary layer formed on the leaf surface of the plant efficiently without forcing wind from the outside, The effect of shaking and promoting the secretion of plant hormones (ethylene) can be made more remarkable.

  As a specific embodiment of the drive mechanism, it is preferable that the drive mechanism relatively expands or contracts the interval between the cultivation shelves adjacent to each other by adjusting the moving speed for each of the plurality of endless transporters. . Here, adjusting the moving speed includes stopping the movement of the endless carrier.

  In order to be able to eliminate the contact of the cultivation shelves at the four corners in the circulation path all together, the arrangement pattern of the cultivation shelves connected to different endless carriers is the same along the circulation direction on each side of the circulation path It is desirable that

  According to the present invention configured as described above, while arranging a plurality of cultivation shelves as densely as possible, when the cultivation shelves are circulated and moved, the adjacent cultivation shelves do not interfere with each other. it can.

  It is a schematic block diagram of the cultivation shelf circulation moving apparatus which concerns on one Embodiment of this invention.   It is an enlarged view which shows typically the corner of the circulation path of the embodiment.   It is a schematic diagram which shows the structure of the endless conveyance body of the embodiment.   It is a schematic diagram which shows the structure of the drive sprocket of the embodiment, and its vicinity.   It is a schematic diagram which shows operation | movement of the cultivation shelf circulation moving apparatus of the embodiment.   It is a schematic diagram which shows operation | movement of the cultivation shelf circulation moving apparatus of the embodiment.   It is the front view and side view which show typically the drive mechanism which concerns on deformation | transformation embodiment.   It is the front view and side view which show typically the 1st gear mechanism of the drive mechanism which concerns on deformation | transformation embodiment.   It is the front view and side view which show typically the 2nd gear mechanism of the drive mechanism which concerns on deformation | transformation embodiment.   It is the front view and side view which show typically the 3rd gear mechanism of the drive mechanism which concerns on deformation | transformation embodiment.   It is a figure which shows typically the drive mechanism which concerns on other embodiment.

  Hereinafter, an embodiment of a cultivation shelf circulation moving device according to the present invention will be described with reference to the drawings.

  The cultivation shelf circulation moving device 100 according to the present embodiment is used in a plant cultivation device for cultivating plants, and a plurality of cultivation trays BT on which plants are planted are placed. The cultivation shelf 2 is circulated and moved three-dimensionally along a vertical plane.

  Specifically, as shown in FIG. 1, a plurality of cultivation shelves 2 having cultivation tray mounting flat plates are connected, and a plurality of endless carriers 3 for conveying the plurality of cultivation shelves 2, A drive mechanism 4 that circulates and moves the plurality of cultivation shelves 2 by rotationally driving the plurality of endless transport bodies 3, and a frame body 5 on which the plurality of endless transport bodies 3 and the drive mechanism 4 are provided. ing. In addition, the cultivation shelf circulation movement apparatus 100 of this embodiment makes this circulation movement mechanism a horizontal direction (when the drive mechanism 4 corresponding to the said endless conveyance body 3 and its endless conveyance body 3 is made into one circulation movement mechanism ( One or a plurality of columns are provided in the depth direction on the paper surface of FIG. Moreover, the lower part of the frame 5 contacts with the cultivation shelf 2 located in the lower part in the circulation path, and supplies the nutrient solution to the cultivation tray BT placed on the cultivation shelf 2. 6 is provided.

  As shown in FIGS. 2 to 4, the endless transport body 3 of the present embodiment includes three endless transport bodies 3 </ b> A to 3 </ b> C, and circulation paths of a plurality of cultivation shelves 2 connected to the endless transport bodies 3 </ b> A to 3 </ b> C. Are arranged side by side so as to be substantially the same. Moreover, the circulation path of each endless conveyance body 3A-3C is comprised so that it may become a substantially rectangular ring shape.

  Each of the endless transporters 3A to 3C includes a pair of left and right endless chains 31 and a support member 32 that is horizontally spanned between the pair of left and right endless chains 31 and on which the cultivation shelf 2 is swingably suspended. Yes. The pair of left and right endless chains 31 are configured such that their shapes (corresponding to the circulation path) are substantially rectangular by sprockets 41 arranged at the four corners (see FIG. 1). Thereby, the circulation path of the cultivation shelf 2 connected to the endless chain 31 becomes a substantially rectangular ring. In addition, as shown in FIG. 3, for example, one end and the other end of the cultivation shelf 2 in the longitudinal direction are suspended from the support member 32. In a state where the cultivation shelf 2 is suspended from the support member 32, the upper surface of the cultivation tray mounting flat plate is substantially horizontal.

  A plurality of cultivation shelves 2 are connected to each of the endless transporters 3A to 3C. The first cultivation shelf group 2A is connected to the first endless carrier 3A, the second cultivation shelf group 2B is connected to the second endless carrier 3B, and the third endless carrier 3C is connected to the third endless carrier 3C. The third cultivation shelf group 2C is connected. And it arrange | positions so that the mutually adjacent cultivation shelf 2 may be connected to different endless conveyance bodies 3A, 3B, or 3C. That is, as shown in FIG. 1, the cultivation shelf 2 constituting the second or third cultivation shelf group 2B, 2C is arranged next to the cultivation shelf 2 constituting the first cultivation shelf group 2A.

  Moreover, the arrangement pattern of the cultivation shelf 2 connected to different endless transporters 3A to 3C is arranged so as to be the same along the circulation direction on each side of the circulation path having a substantially rectangular ring shape (FIG. 1). reference). For example, in each side of the circulation path, the arrangement pattern along the circulation direction is the cultivation shelf 2 constituting the first cultivation shelf group 2A, the cultivation shelf 2 constituting the second cultivation shelf group 2B, and the third cultivation. It is comprised so that it may arrange alternately one by one so that it may become the order of cultivation shelf 2, ... which constitutes shelf group 2C. By comprising in this way, in the circulation path, the cultivation shelf 2 which belongs to the same cultivation shelf group 2A, 2B or 2C will approach at each four corners (in FIG. 1, the third cultivation shelf group 2C). ).

  The drive mechanism 4 individually drives the first endless transport body 3A, the second endless transport body 3B, and the third endless transport body 3C, and the configuration thereof is as shown in FIG. A sprocket 41 provided at each of the four corners corresponding to each of the carriers 3A to 3C, a drive sprocket 42 provided corresponding to each of the endless carriers 3A to 3C in the central portion of the bottom of the circulation path, and the drive sprocket 42 And a control unit 44 such as a PC including a CPU and a memory for controlling the drive motor 43. Further, the drive mechanism 4 includes a switching mechanism (not shown) for switching the drive sprocket 42 to which the rotation of the drive motor 43 is transmitted in order to individually drive the endless transporters 3A to 3C.

  2 and 3, the sprockets 41A to 41C corresponding to the endless transporters 3A to 3C have different diameters, are arranged concentrically and have the same center of rotation. Yes. With this configuration, the second endless transport body 3B is positioned inside the first endless transport body 3A, and the third endless transport body 3C is positioned inside the second endless transport body 3B. Thereby, the size of the circulating movement mechanism in the width direction can be reduced. Also, the drive sprockets 42A to 42C corresponding to the endless transporters 3A to 3C have different diameters, are concentrically arranged, and are arranged to have the same rotation center. Reference numerals 45A to 45C shown in FIG. 3 and the like are provided for each of the endless transport bodies 3A to 3C, and particularly guide rails that contact the rolling elements 321 provided at both ends of the support member 32 in order to guide the support member 32. It is.

  The drive mechanism 4 can independently drive the first endless transport body 3A, the second endless transport body 3B, and the third endless transport body 3C, and the plurality of endless transport bodies 3A to 3C can be driven. The intervals between the cultivation shelves 2 that are adjacent to each other are relatively expanded and contracted so that the cultivation shelves 2 that are adjacent to each other at the four corners of the circulation path do not contact each other. At this time, since the mutually adjacent cultivation shelf 2 belongs to different cultivation shelf groups 2A to 2C and is connected to different endless conveyance bodies 3A to 3C, the first endless conveyance body 3A and the second endless conveyance body By independently driving the 3B and the third endless transport body 3C, it is possible to adjust the intervals between all the adjacent cultivation shelves 2 on the circulation path.

  Specifically, the drive mechanism 4 adjusts the rotational movement speed of the first endless transport body 3A, the second endless transport body 3B, and the third endless transport body 3C, thereby setting the interval between the cultivation shelves 2 adjacent to each other. Scale relatively. More specifically, the drive mechanism 4 rotates and moves any one of the first endless transport body 3A, the second endless transport body 3B, and the third endless transport body 3C, and the other endless transport body 3A. By stopping ~ 3C, the interval between the cultivation shelves 2 adjacent to each other is relatively enlarged or reduced.

  Next, operation | movement of the cultivation shelf circulation moving apparatus 100 comprised in this way is demonstrated with reference to FIG.5 and FIG.6. In addition, although the cultivation shelf circulation moving apparatus 100 of FIG. 5 has shown the case where the three cultivation shelves 2 are arrange | positioned at each edge | side of a circulation path | route, it is not restricted to this. Moreover, in FIG. 5, the cultivation shelf group shown by the thick line rotates, and the cultivation shelf group shown by the dotted line has stopped. Further, the display A shows the first cultivation shelf group 2A, the display B shows the second cultivation shelf group 2B, and the display C shows the third cultivation shelf group 2C.

  During operation, the drive mechanism 4 moves each of the plurality of endless transporters 3A to 3C in order as shown in FIG. That is, the drive mechanism 4 rotates the first endless transport body 3A and is connected to the first endless transport body 3A while the second endless transport body 3B and the third endless transport body 3C are stopped. The cultivation rack 2 stops after moving a predetermined distance (see FIG. 6). Here, the predetermined distance is a distance at which the cultivation shelves 2 adjacent to each other can avoid contact at the four corners of the circulation path and in the vicinity thereof, depending on the size of the cultivation shelf 2 or the rotation radii (sprocket radii) at the four corners. Determined.

  Next, the drive mechanism 4 rotates the second endless transport body 3B in a state where the first endless transport body 3A and the third endless transport body 3C are stopped, and is connected to the second endless transport body 3B. The cultivation shelf 2 stops after moving a predetermined distance. Thereafter, in a state where the first endless transport body 3A and the second endless transport body 3B are stopped, the third endless transport body 3C is rotated, and the cultivation shelf 2 connected to the third endless transport body 3C is provided. Stop after moving a predetermined distance. After stopping the third endless transport body 3C, the first endless transport body 3A is moved again. By operating in this way, contact between the cultivation shelves 2 adjacent to each other at the four corners of the circulation path can be prevented.

<Effect of this embodiment>
According to the cultivation shelf circulation moving apparatus 100 which concerns on this embodiment comprised in this way, it comprises so that the some cultivation shelf 2 may be shared and circulated by the plurality of endless conveyance bodies 3A-3C, and also the plurality of the plurality of cultivation shelves 2 Since the endless transporters 3A to 3C are individually driven and the intervals between the adjacent cultivation shelves 2 are relatively expanded and contracted, it is possible to prevent the adjacent cultivation shelves 2 from contacting each other on the circulation path. Can do. That is, on the circulation path, the intervals between the cultivation shelves 2 adjacent to each other can be enlarged at the four corners where the intervals between the cultivation shelves 2 adjacent to each other are narrowed. Therefore, while arranging a plurality of cultivation shelves 2 as densely as possible on the circulation path, the cultivation shelves 2 adjacent to each other can be prevented from interfering with each other when the cultivation shelves 2 are circulated.

  In addition, by circulating and moving the cultivation shelf 2, light from outside for photosynthesis can be uniformly applied to each cultivation shelf 2. Moreover, by moving the cultivation shelf 2, it is possible to efficiently disturb the boundary layer formed on the leaf surface of the plant together with photosynthesis without forcing the wind from the outside and efficiently supplying carbon dioxide to the leaf. Can be done well.

  Furthermore, by moving the cultivation shelf 2, a plant will shake, the secretion of plant hormones (ethylene) can be promoted, and the length of sunlight can be prevented.

<Other modified embodiments>
The present invention is not limited to the above embodiment. In the following description, the same reference numerals are given to members corresponding to the above-described embodiment.

  For example, in the above-described embodiment, the endless transport body is configured by an endless chain, but may be configured by using other endless wires or endless belts.

  Regarding the drive mechanism 4, in the embodiment, the first to third endless transport bodies 3A to 3C are individually driven by computer control, but the first to third endless transport bodies 3A to 3C are mechanically driven. It is also possible to drive it. In this case, as shown in the above-described embodiment, the drive mechanism 4 is configured such that the endless transport members 3A to 3C correspond to each of the endless transport bodies 3A to 3C and endless transports at the center of the bottom of the circulation path. In addition to the drive sprocket 42 provided corresponding to each of the bodies 3A to 3C and the drive motor 43, gears for individually transmitting the rotation from the drive motor 43 to the first to third endless transport bodies 3A to 3C A mechanism 46 is provided.

  The gear mechanism 46 includes first to third timing gears 461A to 461C connected to the drive shaft 43R of the drive motor 43, and a first gear that transmits the rotation of the timing gears 461A to 461C to the drive sprockets 42A to 42C. To third transmission gear groups 462A to 462C. The first to third timing gears 461 </ b> A to 461 </ b> C have the same diameter that is connected to the drive shaft 43 </ b> R of the drive motor 43 so that the respective rotation shafts coincide with each other. And in each timing gear 461A-461C, the tooth | gear is formed corresponding to the predetermined movement distance of the cultivation shelf 2, and since it has three timing gears in this embodiment, each timing gear 461A-461C The teeth are formed on a 1/3 arc. The timing gears 461A to 461C are provided so that the teeth of the timing gears 461A to 461C are sequentially shifted by 120 degrees. The first to third transmission gear groups 462A to 462C are provided between the timing gears 461A to 461C and the driving sprockets 42A to 42C, and transmit the rotation of the timing gears 461A to 461C to the driving sprockets 42A to 42C. Are formed by two transmission gears.

Next, the operation of the drive mechanism 4 configured as described above will be described.
As the drive motor 43 rotates, the first to third timing gears 461A to 461C connected to the drive shaft 43R rotate.
Here, when it is assumed that the first endless conveyance body 3A is rotated first, as shown in FIG. 8, the first to third timing gears 461A to 461C are rotated, and the teeth of the first timing gear 461A are rotated. Meshes with the first transmission gear group 462A and rotates the first transmission gear group 462A until the first timing gear 461A rotates 120 degrees. Accordingly, the driving sprocket 42A is rotated by the rotated first transmission gear group 462A, and the first endless carrier 3A is moved by a predetermined distance. At this time, the second timing gear 461B and the third timing gear 461C that transmit power to the second endless transport body 3B and the third endless transport body 3C have transmission gear groups 462B and 462C where the portions without teeth are included. Therefore, the power is not transmitted to the drive sprockets 42B and 42C, and the second endless transport body 3B and the third endless transport body 3C do not move.

  As described above, after the first timing gear 461A rotates by 120 degrees, as shown in FIG. 9, the second timing gear 461B meshes with the second transmission gear group 462B, and the second timing gear 461B becomes 120. The second transmission gear group 462B is rotated until it rotates by a predetermined degree. Thus, the driving sprocket 42B is rotated by the rotated second transmission gear group 462B, and the second endless transport body 3B moves by a predetermined distance. At this time, the first timing gear 461A and the third timing gear 461C that transmit power to the first endless transport body 3A and the third endless transport body 3C have transmission gear groups 462A and 462C in which the portions without teeth are included. Therefore, the power is not transmitted to the drive sprockets 42A and 42C, and the first endless transport body 3A and the third endless transport body 3C do not move.

  Next, after the second timing gear 461B rotates 120 degrees, the third timing gear 461C meshes with the third transmission gear group 462C, and the third transmission gear 461C rotates 120 degrees. The group 462C is rotated. Accordingly, the driving sprocket 42C is rotated by the rotated third transmission gear group 462C, and the third endless carrier 3C moves by a predetermined distance. At this time, the first timing gear 461A and the second timing gear 461B that transmit power to the first endless transport body 3A and the second endless transport body 3B have transmission gear groups 462A and 462B in which the portions without teeth are included. Therefore, the power is not transmitted to the drive sprockets 42A and 42B, and the first endless transport body 3A and the second endless transport body 3B do not move.

  Thus, after the third timing gear 461C rotates 120 degrees, the first timing gear 461A meshes with the first transmission gear group 461A, and the first endless transport body 3A moves again. By repeating the above operation, the plurality of cultivation shelves 2 are circulated and moved.

  In addition to the configuration using the timing gear 461 as described above, the drive mechanism 4 mechanically drives the endless transport bodies 3A to 3C may use a timing chain 463 as shown in FIG. it can. FIG. 11 shows only the timing chain 463 for moving the first endless transport body 3A. Thereby, it can be set as the structure which the movement distance of the cultivation shelf 2 is not restrict | limited to the magnitude | size of a gearwheel. The timing chain 463 meshes with the transmission gear group 462A to move the endless carrier 3A, and the non-transmission part 463Q (in FIG. 11) does not mesh with the transmission gear group 462A and does not rotate the gear group 462A. Hatched portion). Needless to say, the inside of the non-transmission portion 463Q is configured to mesh with the power gear 464. The power gear 464 is connected to the drive shaft of the drive motor 43.

  Moreover, although the cultivation shelf circulation movement apparatus of the said embodiment was a thing which carries out the three-dimensional circulation movement along the vertical plane, what was circulated and moved along the other horizontal direction, the path | route which combined the vertical direction and the horizontal direction It may be one that circulates above, or one that circulates on an inclined plane.

  Furthermore, the circulation path of the above embodiment has a substantially rectangular ring shape when viewed from the side, but may be circular, elliptical, or polygonal when viewed from the side, or a gate shape when viewed from the side. Alternatively, it may be a semicircular shape.

  In addition, in the endless transport body of the above embodiment, the cultivation shelf is attached to the support member so as to be suspended, but for example, if the cultivation tray mounting flat plate of the cultivation shelf is connected so as to be horizontal. good.

  In addition, in the above-described embodiment, a plurality of cultivation shelves are circulated and moved in three cultivation shelf groups using three endless conveyance members, but two or more endless conveyance members are used, and the endless conveyance member is used. It is divided into two or more cultivation shelf groups corresponding to, each cultivation shelf group is connected to a different endless transport body, and the cultivation shelves adjacent to each other are arranged to be connected to different endless transport bodies If it does, the same effect can be acquired.

  In addition, although the cultivation shelf of the embodiment is one on which one or a plurality of cultivation trays are placed, a plant may be directly planted on the cultivation shelf.

  As for the drive mechanism, in the above-described embodiment, the drive mechanism operates so as to rotate and move each endless transport body in order, so that only one of the plurality of endless transport bodies is rotated and moved. However, it is only necessary to rotate the endless carrier so as to widen the gap between the cultivation shelf approaching the four corners and the cultivation shelf behind the cultivation shelf. For example, it is possible to stop only the endless transport body connected to the cultivation shelf immediately after the cultivation shelf reaching the four corners, and rotate and move the endless transport body connected to the other cultivation shelf.

  Furthermore, although the drive mechanism of the above-described embodiment is configured to rotate and move a plurality of endless transport bodies by one drive motor, a drive motor may be provided for each endless transport body. In this case, the drive sprocket is provided separately.

  In addition, some or all of the above-described embodiments and modified embodiments may be combined as appropriate, and the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. .

DESCRIPTION OF SYMBOLS 100 ... Cultivation shelf circulation movement apparatus BT ... Cultivation tray 2 ... Cultivation shelf 3, 3A-3C ... Endless conveyance body 31 ... Endless chain 32 ... Support member 4 ... Drive Mechanism 41... Sprocket 42... Drive sprocket 5... Frame 6.

Claims (6)

A cultivation shelf circulation moving device for circulating and moving a plurality of cultivation shelves,
A plurality of cultivation shelves are connected, arranged in parallel so that the circulation paths of the cultivation shelves are substantially the same, and a plurality of endless carriers whose circulation paths form a ring,
A drive mechanism for circulating and moving the plurality of cultivation shelves by driving the plurality of endless transport bodies,
Adjacent cultivation shelves are connected to different endless carriers,
The drive mechanism individually drives the plurality of endless transport bodies to relatively expand and contract the spacing between adjacent cultivation shelves, and the cultivation shelves adjacent to each other on the circulation path of the plurality of endless transport bodies contact each other. Cultivation shelf circulation moving device to avoid. The circulation path of the plurality of endless transport bodies is a substantially rectangular ring,
The drive mechanism drives the plurality of endless carriers individually to relatively expand and contract the intervals between the adjacent cultivation shelves so that the cultivation shelves adjacent to each other at the four corners of the circulation path do not come into contact with each other. The cultivation shelf circulation movement apparatus of claim | item 1.   The cultivation shelf circulation movement device according to claim 1 or 2 in which said endless conveyance object is constituted from an endless chain whose circulation path is made into a substantially rectangular ring by sprockets arranged at four corners.   Each endless conveyance body is provided with a pair of left and right endless chains, and a support member that is horizontally spanned between the pair of left and right endless chains and suspendably swings the cultivation shelf. Or the cultivation shelf circulation movement apparatus of 3 description.   The cultivation shelf circulation movement according to claim 1, 2, 3, or 4 in which said drive mechanism expands / contracts the interval between cultivation shelves adjacent to each other by adjusting the movement speed for each of a plurality of endless carriers. apparatus.   The cultivation shelf circulation moving device according to claim 1, 2, 3, 4, or 5, wherein the arrangement pattern of cultivation shelves connected to different endless carriers is the same along the circulation direction at each side of the circulation path.

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