JP2012152175A - Plant cultivation shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant cultivation shelf which is used alone to enable cultivation of plants having various lengths.SOLUTION: The plant cultivation shelf includes a plurality of shelf members 2 longitudinally arranged, and support members 3 supporting a plurality of the shelf members 2 and longitudinally extended, and includes a culture solution supplying mechanism 4 on each of the shelf members 2 so as to cultivate the plants. The shelf members 2 are each structured so as to be movable between a development position X where the members extend out from the support member 3 with its top surface almost horizontal, and a folded position Y where the members are folded so as to be along the support member 3.

Description

  The present invention relates to a shelf for plant cultivation that can accommodate plants having various lengths.

  As a conventional plant cultivation apparatus, as shown in Patent Document 1, there is one having a plurality of stages of cultivation shelves, and a storage tank for storing nutrient solution is provided on the cultivation shelf, A plurality of cultivation plates are arranged in a line. And the multi-stage cultivation shelf is being fixed to the support | pillar so that it may become equal intervals.

  However, in the case where the cultivation shelf is fixed to the support as described above, there is a problem that the height of the plant that can be cultivated is limited to the interval between the cultivation shelves. If it does so, it will be necessary to prepare the plant cultivation apparatus (cultivation shelf) corresponding to the kind of plant to grow, and there also exists a problem that an enormous cost will be required for capital investment.

JP 2006-262750 A

  Then, this invention is made | formed to solve the said problem, and makes it the main intended subject to enable cultivation of the plant which has various height using the shelf for single plant cultivation. is there.

  That is, the shelf for plant cultivation according to the present invention has a plurality of shelf members arranged in a plurality of upper and lower stages and a column member erected in the vertical direction to support the plurality of shelf members, and each of the plurality of shelf members. A plant cultivation shelf for cultivating a plant by providing a nutrient solution supply mechanism for supplying a nutrient solution for plant cultivation, wherein the upper shelf member in which another shelf member is located below the plurality of shelf members In addition, it is possible to move between an unfolded position where the upper surface of the support member extends from the support member and the upper surface of the support member is substantially horizontal, and a folding position where the support member is folded along the support member. Here, the nutrient solution supply mechanism for supplying a nutrient solution for plant cultivation uses the nutrient solution supply mechanism and the medium for hydroponics by supplying the nutrient solution without using the medium, and is fed to the medium. It includes a nutrient solution supply mechanism for supplying the solution and performing fixed medium cultivation.

  If it is such, since the upper shelf member can move between the expanded position and the folded position with respect to the support member, the upper shelf member is expanded in accordance with the size of the plant to be cultivated. It can be set as the shelf for plant cultivation corresponding to the said plant by switching between a position and a folding position. Thereby, it is possible to cultivate plants having various lengths using a single shelf for plant cultivation.

  In order to effectively utilize the space on the lower surface of the shelf member by providing a light source on the lower surface of the shelf member, and to enable cultivation of plants using the light source even when folded, it is provided on the lower surface of the upper shelf member. And a light source for irradiating light to the plant placed on the other shelf member, and when the upper shelf member is in a folded position, the light source is used to place the plant on the other shelf member. It is desirable that the plant can be irradiated with light from the side.

  In order to be able to flexibly correspond to the length of the plant to be cultivated, two or more shelf members that are continuous in the vertical direction among the plurality of shelf members are located between the deployed position and the folded position with respect to the support member. It is desirable to be movable.

  In order not only to be able to fold the shelf member to accommodate various plant heights, but also to be able to expand and contract the spacing between each shelf member to further accommodate various plant heights, It is desirable that at least a part of the shelf member can be adjusted in the vertical direction along the column member. If it is this, it can match | combine with the plant mounted in each shelf member, and can diversify cultivation use.

  As a specific embodiment for making the shelf member movable in addition to allowing the shelf member to be adjusted in the vertical direction, the shelf member sandwiches the opposing surfaces of the column members facing each other. A pair of first sandwiching portions and second sandwiching portions provided in a pair, wherein the distance between the first sandwiching portion and the second sandwiching portion is greater than the distance between the opposing surfaces of the strut members. And when the shelf member is in the unfolded position, the first sandwiching portion and the second sandwiching portion sandwich the strut member by the rotation moment due to the weight of the shelf member, and the shelf member is When the shelf member is fixed to the support member and the shelf member is moved from the unfolded position to the folding position, it is preferable that the holding pressure of the support member by the first and second holding portions is released.

  In the case where the shelf member is clamped and fixed to the support member by the first sandwiching portion and the second sandwiching portion as described above, the shelf member may slide down. For this reason, it is desirable that the support member has a slip-off prevention mechanism that supports the second pinching portion or the second pinching portion from the lower side and prevents the shelf member from slipping down.

  According to the present invention having such a configuration, plants having various lengths can be cultivated using a single shelf for plant cultivation.

The front view which shows typically the structure of the plant cultivation apparatus which concerns on one Embodiment of this invention. The side view which shows typically the structure of the plant cultivation apparatus of the embodiment. The expanded side view which shows the expansion | deployment position and folding position of the shelf member of the embodiment. The top view which shows the structure of the shelf member of the embodiment. The figure which mainly shows the shelf member of the embodiment. The figure which shows the process of the rotation from an expansion | deployment position to a folding position. The figure which shows the sliding prevention mechanism of deformation | transformation embodiment. The figure which shows the sliding prevention mechanism of deformation | transformation embodiment. The figure which shows the sliding prevention mechanism of deformation | transformation embodiment. The figure which shows the structure of the shelf member of deformation | transformation embodiment. The figure which shows the guide part of deformation | transformation embodiment. The figure which shows the structure of the support | pillar member of deformation | transformation embodiment. The schematic diagram which shows the aspect folded down. The schematic diagram which shows the movement method of the shelf member which concerns on deformation | transformation embodiment.

  An embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, the plant cultivation apparatus 100 according to the present embodiment is erected in a vertical direction that supports a plurality of shelf members 2 arranged in multiple upper and lower stages and the plurality of shelf members 2. A support member 3 and a nutrient solution supply mechanism 4 for supplying a nutrient solution for plant cultivation to each of the plurality of shelf members 2 are provided.

  As shown in FIGS. 1 and 2, each shelf member 2 has a substantially long shape extending in a substantially horizontal direction. Further, a nutrient solution storage container 41 of the nutrient solution supply mechanism 4 is placed on the upper surface of each shelf member 2 and a light source that irradiates light toward another shelf member 2 positioned below the shelf member 2 on the lower surface. 5 is provided. The details of the shelf member 2 will be described later.

  Moreover, on each shelf member 2, a plurality of cultivation plates P having a single shape for holding plants to be cultivated are placed. The cultivation plate P is placed in a row on the nutrient solution storage container 41.

  The column member 3 supports a plurality of shelf members 2 arranged above and below. In the present embodiment, as shown in FIG. 2, two sets of support members 3 that support the shelf members 2 that are arranged in two rows on both sides in two rows in a side view are provided.

  The nutrient solution supply mechanism 4 includes a nutrient solution storage container 41 that is installed on the shelf member 2 and stores the nutrient solution, and a nutrient solution supply unit 42 that supplies or circulates the nutrient solution to the nutrient solution storage container 41. The nutrient solution supply unit 42 includes a nutrient solution tank 421, a nutrient solution pipe 422 for circulating the nutrient solution in the nutrient solution tank 421, and a pump (not shown) that feeds the nutrient solution into the nutrient solution pipe 422. ). The nutrient solution piping 422 is connected to the nutrient solution tank 421 and the nutrient solution storage container 41.

  As shown in FIG. 1, the nutrient solution storage container 41 is provided along the longitudinal direction similarly to the shelf member 2, and has a substantially elongated upper opening. Then, the cultivation plate P is placed so as to close the upper opening of the nutrient solution storage container 41. The nutrient solution storage container 41 is configured to be detachable from the shelf member 2.

  Thus, as shown in FIG. 3, in the plant cultivation apparatus 100, all of the plurality of shelf members 2 are projected from the support member 3 so that the upper surface is substantially horizontal (see FIG. 3 (A)). And between the folding position Y (refer FIG. 3 (B)) folded so that it may follow along the support | pillar member 3, it is comprised so that rotation movement with respect to the support | pillar member 3 is possible. In addition, the expansion | deployment position X is a position where a plant is mounted on the shelf member 2 and a plant is grown. The folding position Y is a position where the shelf member 2 is folded upward. Moreover, each shelf member 2 of this embodiment is comprised so that position adjustment is possible to the up-down direction along the support | pillar member 3. FIG.

  As shown in FIG. 4, each shelf member 2 has a shelf main body portion 21 having a substantially long shape on which plants are placed, and the shelf main body portion 21 extending outward from one side surface of the shelf main body portion 21. And a fixing portion 22 for fixing to the column member 3. The nutrient solution storage container 41 is placed on the upper surface of the shelf main body 21, and the light source 5 is attached to the lower surface of the shelf main body 21. In this embodiment, since each shelf member 2 is supported by the four support members 3, the fixing portions 22 are provided at four locations corresponding to the support members 3.

  As shown in FIG. 5, each fixing portion 22 is provided along one side surface 3 a of the support column member 3, and a pair of first and second sandwiching portions 221 and 221 provided so as to sandwich the support column member 3. Two sandwiching portions 222 are provided.

  The first sandwiching portion 221 and the second sandwiching portion 222 have a bar shape provided on the side surface of the fixing portion 22 on the support member 3 side. These sandwiching portions 221 and 222 are provided in parallel to each other along the rotation center of the shelf member 2 so as to sandwich the opposing surfaces (front surface 3b and back surface 3c) of the column member 3 forming a substantially square column. Is provided. Further, the distance L1 between the first sandwiching portion 221 and the second sandwiching portion 222 is set to be larger than the distance L2 between the opposing surfaces (front surface 3b and back surface 3c) of the column member 3. In addition, the sandwiching portion provided on the opposite one surface (front surface) 3b side of the column member 3 is the first sandwiching portion 221 and the sandwiching portion provided on the opposite other surface (back surface) 3c side is the second sandwiching portion. This is the sandwiching portion 222. In the present embodiment, when the support member 3 is clamped by the first sandwiching part 221 and the second sandwiching part 222, the distances L1 between the sandwiching parts 221 and 222 are not increased. A connecting portion 223 for connecting and fixing the free end side is provided.

  The first sandwiching portion 221 and the second sandwiching portion 222 are arranged so that the shelf member 2 (specifically, when the shelf member 2 is at the unfolded position X, as shown in FIG. 5A and FIG. 6A). In this case, the shelf member 2 is fixed to the column member 3 by clamping the front surface 3b and the back surface 3c of the column member 3 by the rotation moment due to the weight of the shelf body 21). In addition, the upper surface of the shelf main body portion 21 of the shelf member 2 is substantially horizontal in a state where the first sandwiching portion 221 and the second sandwiching portion 222 sandwich the support member 3. In the present embodiment, when the shelf main body 21 is in a substantially horizontal state (deployment position X), the first sandwiching portion 221 contacts the support member 3 below the second sandwiching portion 222, and the second sandwiching portion The portion 222 contacts the support member 3 on the upper side of the first sandwiching portion 221.

  On the other hand, as shown in FIG. 6B, the first sandwiching portion 221 and the second sandwiching portion 222 sandwich the support member 3 when the shelf member 2 is rotated from the unfolded position X to the folded position Y side. The pressure is released. That is, when the shelf member 2 is rotated from the unfolded position X to the folding position Y side, the shelf member 2 can move in the vertical direction with respect to the column member 3. In this state, the shelf member 2 can be adjusted in the vertical direction with respect to the column member 3 while being rotated to the folding position Y side.

  In the present embodiment, when the shelf member 2 is rotated with respect to the column member 3 due to the size of the interval between the shelf members 2 adjacent to each other in the vertical direction, the tip of the rotated shelf body 21 comes into contact with the upper shelf member 2. End up. Therefore, as shown in FIG. 6B, the shelf member 2 (shelf body portion 21) is rotated, and at the same time, the rotation center side (the column member 3 side) of the shelf member 2 (shelf body portion 21) is set to the lower side. Fold it so that it moves. The distance L1 between the first sandwiching portion 221 and the second sandwiching portion 222 is set to a distance that does not hinder the rotational movement of the shelf member 2 until the shelf member 2 reaches the folding position Y. Then, the folded shelf member 2 ((C) in FIG. 6) is fixed in the folded position Y by a folding position fixing mechanism (not shown). As a fixing method by the folding position fixing mechanism, for example, a wire member such as a rope or a wire is wound around the folded shelf member 2 and the support member 3, and the folded shelf member 2 is fixed to the support member 3, or A latching portion such as a catching claw is provided on one of the shelf member 2 or the column member 3, and a latched portion on which the catching claw or the like is latched is provided on the other, and the latching portion is latched on the latched portion. For example, the shelf member 2 folded on the support member 3 may be suspended.

  Next, an example of a plant cultivation method using the plant cultivation apparatus 100 of the present embodiment will be briefly described.

  It is determined whether or not the shelf member 2 is folded according to the height of the plant to be cultivated. If the height of the plant (for example, the length at the time of harvesting) is smaller than the interval between the shelf members 2 adjacent to each other in the vertical direction, the plants are placed with all the shelf members 2 as the deployment positions X without folding the shelf members 2. Place and cultivate.

  On the other hand, if the height of the plant to be cultivated (for example, the length at the time of harvest) is larger than the interval between the shelf members 2 adjacent to each other in the vertical direction, the upper shelf member 2 is folded and the lower shelf at the unfolded position X A plant is placed on the member 2 and cultivated. In addition, before folding the shelf member 2, the nutrient solution storage container 41 mounted on the shelf member 2 is removed.

  Further, when the upper shelf member 2 is folded, the lower surface of the upper shelf member 2 faces the front side, so that the lower shelf member is used by using the light source 5 provided on the lower surface of the upper shelf member 2. The plant placed in 2 is irradiated with light from the side.

  According to the plant cultivation apparatus 100 according to the present embodiment configured as described above, the upper shelf member 2 can be rotated and moved between the expanded position X and the folded position Y with respect to the support member 3, so that the plant to be cultivated By switching the upper shelf member 2 between the development position X and the folding position Y in accordance with the height of the plant, the plant cultivation apparatus 100 corresponding to the plant can be obtained. Thereby, the plant which has various height can be cultivated using the single plant cultivation apparatus 100. FIG.

  The present invention is not limited to the above embodiment.

  For example, in the above embodiment, the shelf member 2 is clamped and fixed to the column member 3 by the first sandwiching portion 221 and the second sandwiching portion 222. However, as shown in FIGS. The prevention mechanism 6 may be further provided.

  The slip-preventing mechanism 6 supports the first sandwiching portion 221 or the second sandwiching portion 222 from the lower side in a state where the shelf member 2 is at the deployed position X, and prevents the shelf member 2 from slipping. .

  The sliding prevention mechanism 6 in FIG. 7 is configured by a support plate 61. The support plate 61 is fixed to the back surface 3c of the column member 3, and has a plurality of fitting portions 6a into which the second holding portions 222 are fitted, and the fitting portions 6a have a second holding portion. When the portion 222 is fitted, the second sandwiching portion 222 is supported from below. The support plate 61 has a fixing piece 611 for fixing to the back surface 3c of the column member 3, and a screw insertion hole for inserting the screw N is formed in the fixing piece 611. Then, the support plate 61 is fixed to the back surface 3 c of the column member 3 by screwing the screw N into the female screw hole M formed in the back surface 3 c of the column member 3 through the fixing piece 611. The support plate 61 may be provided for each column member 3 or may be provided for some column members 3. When this support plate 61 is used as the slip-off prevention mechanism 6, after the shelf member 2 is fixed at the unfolded position X, the support plate 61 is supported by the support member so that the second sandwiching portion 222 fits into the fitting portion 6a. 3 is fixed to the back surface 3c of the screw 3 with screws N. Here, the vertical positioning between the shelf members 2 is also performed by fitting the second sandwiching portion 222 into the fitting portion 6 a of the support plate 61 fixed to the support member 3. Further, when rotating the shelf member 2 to the folding position Y side, the support plate 61 is removed from the column member 3. In addition, if it is not necessary to move the support | pillar member 3 side of the shelf member 2 below, the support plate 61 may remain attached. By configuring the slip-preventing mechanism 6 with the single support plate 61 as described above, the support plate 61 is moved up and down while the shelf member 2 is supported by the support plate 61, so that the vertical direction between the shelf members 2 is increased. The plurality of shelf members 2 can be moved up and down at once while maintaining the positional relationship. In addition, although the said support plate 61 supported the 2nd clamping part 222 from the lower side, you may support the 1st clamping part 221 from the lower side. In this case, the support plate 61 is screwed to the front surface 3 b of the column member 3.

  The sliding-preventing mechanism 6 in FIG. 8 includes a support plate 62. The support plate 62 is provided between the column member 3 and the second sandwiching portion 222, and is provided outside the flat plate portion 621 provided along the back surface 3 c of the column member 3 and the flat plate portion 621. Projecting portion 622. And this projection part 622 supports the 2nd clamping part 222 from the lower side. The support plate 62 is fixed to the back surface 3c of the column member 3 by screws, and therefore, a screw insertion hole is formed in the flat plate portion 621. Then, the support plate 62 is fixed to the back surface 3 c of the column member 3 by passing the screw N through the screw insertion hole and screwing into the female screw hole M formed in the back surface 3 c of the column member 3. The support plate 62 may be provided for each column member 3 or may be provided for some column members 3. Note that FIG. 8 shows that the shelf member 2 can be adjusted in multiple stages in the vertical direction, and at the same time, a plurality of (in FIG. 8 shows a case where two projections 622 are provided. When such a support plate 62 is used, it is only necessary to fix the support plate 62 to the back surface 3c of the column member 3, so that the configuration of the sliding-preventing mechanism 6 can be simplified.

  The sliding-preventing mechanism 6 in FIG. 9 is configured by a support pin 63 that contacts the lower side of the second sandwiching part 222 and supports the second sandwiching part 222 from the lower side. The support pin 63 is inserted and fixed in a pin fixing hole 3c1 provided in the back surface 3c of the column member 3. The pin fixing hole 3c1 is vertically movable with respect to one shelf member 2 on the back surface 3c of the column member 3 so that the shelf member 2 can be adjusted in multiple stages in the vertical direction and the shelf member 2 is supported at that position. A plurality are provided at different positions. As described above, if the support pin 63 is inserted into the pin fixing hole 3c1 and fixed, the position of the shelf member 2 after the position adjustment can be flexibly dealt with. Note that the support pin 63 may be provided on the front surface 3c of the column member 3 so that the first sandwiching portion 221 is supported from below.

  Moreover, in the said embodiment, although the shelf member 2 is comprised by the 1st clamping part 221 and the 2nd clamping part 222 so that rotation with respect to the support | pillar member 3, the shelf member 2 is comprised with respect to the support | pillar member 3. Various configurations can be used for the rotational movement. For example, you may comprise so that rotation movement is possible using a hinge structure. Specifically, as shown in FIG. 10, a connecting shaft 7 that connects the fixing portion 22 of the shelf member and the support member 3 to make the shelf member 2 rotatable with respect to the support member, and the shelf member 2 include In the deployment position X, the shelf member 2 may be provided with a deployment position fixing mechanism 8 that fixes the shelf member 2 to the column member 3. The deployment position fixing mechanism 8 includes a first hole 81 provided in the fixing portion 22 and a second hole 82 provided in the support member 3 and communicating with the first hole 81 at the deployment position X. And a fixing pin 83 that is inserted into the first hole 81 and the second hole 82 at the deployment position X. When rotating the shelf member 2 from the unfolded position X to the folded position Y, the fixing pin 83 is pulled out and the shelf member 2 is rotated around the connecting shaft 7 upward. The shelf member 2 that has been rotated to reach the folding position Y is fixed in the state of the folding position Y by the folding position fixing mechanism. The folding position fixing mechanism shown in FIG. 10 is fixed by hooking a hook member 12 provided on the column member 3 to a locked shaft 11 provided on the shelf member 2. In addition, similarly to the above-described embodiment, a wire member such as a rope or a wire may be wound around the folded shelf member 2 and the support column member 3 to fix the shelf member 2 folded on the support column member 3. good.

  At this time, in order to prevent the folded shelf member 2 from coming into contact with the upper shelf member 2, as shown in FIG. 11, the connecting shaft 7 is guided to the lower side of the column member 3 to lower the shelf member 2. It is also conceivable to provide a guide portion 9 that moves to the side. A guide portion 9 shown in FIG. 11 is a long hole formed in the column member 3 and extending in the vertical direction. A shaft locking portion 91 that locks the connecting shaft 7 at the deployment position X is formed at the upper portion of the long hole 9. The shaft locking portion 91 is formed by bending the upper portion of the long hole 9. In the lower part of the long hole 9, the connecting shaft 7 is positioned and stopped at the folding position Y.

  Moreover, when it is set as the hinge structure using the said connection shaft 7, as shown in FIG. 12, it is for position adjustment other than the connection hole H1 corresponding to the several shelf member 2, so that the vertical position of the shelf member 2 can be adjusted. It is also conceivable to provide the connecting hole H2. The deployment position fixing mechanism in FIG. 12 does not use the first hole 81, the second hole 82, and the fixing pin 83 described above, but the contact between the front surface 3b of the column member and the side surface 2a of the shelf member 2. Is fixed at the development position X.

  Furthermore, although the said embodiment demonstrated the aspect which folds the upper shelf member 2 upwards, as shown in FIG. 13, you may comprise so that the upper shelf member 2 may be folded downward. FIG. 13 shows a case where the hinge is folded downward. The shelf member 2 folded in the downward direction is fixed by hooking a hook member 12 provided on the column member 3 to a locked shaft 11 provided on the shelf member 2. In addition, similarly to the above-described embodiment, a wire member such as a rope or a wire may be wound around the folded shelf member 2 and the support column member 3 to fix the shelf member 2 folded on the support column member 3. good. In the plurality of shelf members 2 arranged up and down in two rows on both sides as in the embodiment, as shown in FIG. 13, when the shelf member 2 in one row is folded downward, it is provided on the lower surface of the shelf member 2. The light source 5 can irradiate the plant placed on the shelf member 2 in the other row from the side. Thereby, since light is irradiated to the plant on the shelf member 2 in the other row from one row, the plant can be cultivated without narrowing the space on the shelf member 2 in the other row.

  In addition, in the above-described embodiment, the nutrient solution storage container provided on the shelf member is removed when the shelf member is folded. However, if the nutrient solution storage container does not get in the way when folded, the nutrient solution storage container You may comprise so that it may fold with attaching.

  In addition, the shelf members arranged above and below may be folded not only in one step but also in a plurality of successive steps (for example, two successive steps). This makes it possible to flexibly cope with the length of the plant to be cultivated as compared with the case of folding in one step.

  Moreover, in the said embodiment, although it comprises so that all the several shelf members can be folded, it is not restricted to this, The shelf member to fold among several shelf members is decided beforehand, and only the said predetermined shelf member is an expansion | deployment position. In addition, it may be configured to be rotatable with respect to the support member between the folding positions.

  Furthermore, in the said embodiment, although all the some shelf members are comprised so that position adjustment is possible to an up-down direction, it is good also as position adjustment of at least one part of a some shelf member can be performed up-down direction.

  In addition, the distance between the first sandwiching portion and the second sandwiching portion may be increased due to use or the like, and the upper surface of the shelf member may be inclined downward on the free end side at the deployment position X. It is desirable to adjust the upper surface of the shelf member horizontally by sandwiching a spacer between the front surface of the first sandwiching portion and the support member or between the second sandwiching portion and the back surface of the support member.

  Further, as shown in FIG. 14, the shelf member 2 configured to be rotationally movable using a hinge structure may be configured to be automatically foldable by the shelf member moving mechanism 10. The shelf member moving mechanism 10 includes a wire 10a having one end connected to the free end portion side of the shelf member, a pulley 10b provided on the column member 3 and wound around the wire 10a, and wound around the pulley 10b. And a drive motor 10c for winding or rewinding the wire 10a. When moving the shelf member 2 from the unfolded position X to the folded position Y, the drive motor 10c is rotated forward to wind up the wire 10a. On the other hand, when the shelf member 2 is moved from the folding position Y to the unfolding position X, the drive motor 10c is reversely rotated to rewind the wire 10a. With such a configuration, the shelf member 2 can be automatically rotated between the unfolded position X and the folded position Y using the power of the drive motor 10c, thereby reducing the work burden on the user. be able to. For example, by providing the shelf member moving mechanism 10 so as to automatically fold the shelf member 2 located at a high place where human hands cannot reach, the work burden on the user can be further reduced, and safety can be improved. Can be improved.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Plant cultivation apparatus X ... Unfolding position Y ... Folding position 2 ... Shelf member 221 ... 1st clamping part 222 ... 2nd clamping part 3 ... Strut member 4・ ・ ・ Nutrient supply mechanism 5 ・ ・ ・ Light source 6 ・ ・ ・ Sliding prevention mechanism

Claims (7)

A nutrient solution having a plurality of shelf members arranged vertically and a column member erected in the vertical direction that supports the plurality of shelf members, and supplying a nutrient solution for plant cultivation to each of the plurality of shelf members A shelf for plant cultivation in which a supply mechanism is provided to grow plants,
An upper shelf member in which another shelf member is positioned below the plurality of shelf members is extended from the support member so that the upper surface thereof is substantially horizontal, and a folding position in which the upper shelf member is folded along the support member. The shelf for plant cultivation characterized by being movable between. Provided on the lower surface of the upper shelf member, and having a light source that irradiates light to the plant placed on the other shelf member,
The shelf for plant cultivation according to claim 1, wherein when the upper shelf member is in a folded position, light can be irradiated from the side to a plant placed on the other shelf member using the light source.   The shelf for plant cultivation according to claim 1 or 2, wherein two or more shelf members that are continuous in the vertical direction among the plurality of shelf members are movable relative to the support member between the unfolded position and the folded position. .   The shelf for plant cultivation according to any one of claims 1 to 3, wherein the position of at least a part of the plurality of shelf members can be adjusted in the vertical direction along the support member. The shelf member has a first sandwiching portion and a second sandwiching portion that form a pair provided so as to sandwich the opposing surfaces of the strut member facing each other,
The distance between the first sandwiching portion and the second sandwiching portion is set to be larger than the distance between the opposing surfaces of the strut member,
When the shelf member is in the unfolded position, the first sandwiching portion and the second sandwiching portion sandwich the strut member by the rotation moment due to the weight of the shelf member, and the shelf member is fixed to the strut member. ,
5. The pinching force of the column member by the first and second pinching portions is released when the shelf member is moved from the unfolded position to the folding position side. Shelves for plant cultivation.   The shelf for plant cultivation according to claim 5, wherein the support member has a slip-preventing mechanism that supports the first sandwiching portion or the second sandwiching portion from below and prevents the shelf member from slipping. The nutrient solution supply mechanism has a nutrient solution storage container that is provided on the upper surface of the shelf member and stores a nutrient solution for plant cultivation,
The shelf for plant cultivation according to any one of claims 1 to 6, wherein the nutrient solution storage container is configured to be detachable from the shelf member.