JP2015043716A - Plant cultivation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant cultivation device in which minimum number of LED lighting tools are used for ensuring photon flux density required for growth of plants and uniformized photon flux density is radiated on all plants planted on a cultivation tank loaded on a loading part of a cultivation rack.SOLUTION: A plant cultivation device 1 comprises a plurality of props 7, a cultivation rack 3 which is established with the props 7 and comprises loading parts 4 on which a cultivation tank 2 on which plants are planted is loaded with an interval in vertical direction, an LED illumination device 5 arranged on the cultivation rack 3 with an interval above each of the loading parts 4. The cultivation rack 3 has a configuration capable of being encompassed in a virtual rectangular parallelepiped. A reflection surface facing inside of the cultivation rack 3 is provided on at least one side surface of 4 side surfaces of the virtual rectangular parallelepiped. A plurality of reflectors 12 are arranged like as a sliding door moveable in width direction of the side surface.

Description

  The present invention relates to a plant cultivation apparatus that uses, for example, an LED lighting device as a light source and is used in a plant factory, a vegetable factory, a seedling raising apparatus, or the like.

  In this specification and claims, the top and bottom of FIG.

  As a plant cultivation device using an LED lighting device, the present applicant previously has a plurality of support columns, and a cultivation rack having a placement unit on which a cultivation tank provided with plants and planted using the support columns is placed. An LED lighting device disposed on the cultivation rack with an interval above the mounting portion, and the cultivation rack is shaped to fit within a virtual rectangular parallelepiped surrounded by six virtual walls and spaced from each other 3 or more pairs of struts composed of two struts arranged at a distance are provided, and support portions that support both side edges of the LED lighting device are spaced vertically in adjacent strut pairs of the cultivation rack. A plant in which the LED lighting device is attached to the cultivation rack so that the height position of the LED lighting device with respect to the placement unit can be changed according to the growth status of the plant by using the support unit. Proposed cultivation equipment It was (see Patent Document 1).

  According to the plant cultivation apparatus described in Patent Document 1, the light intensity applied to the plant is adjusted by changing the height position of the LED lighting device with respect to the mounting shelf according to the type of plant and the growth situation of the plant. Is possible.

  However, recently, with the aim of reducing equipment costs and power consumption costs, the minimum number of photon fluxes necessary to ensure the growth of plants planted in the cultivation tank placed on the mounting section is required. It is required to uniformize the photon flux density emitted to all plants planted in the cultivation tank placed on the placement unit after using the LED lamp.

JP 2013-17397 A

  The purpose of the present invention is to meet the above requirements by using a minimum number of LED lamps to secure the photon flux density necessary for the growth of the plant, and then to the cultivation tank placed on the cultivation rack mounting portion. An object of the present invention is to provide a plant cultivation apparatus capable of uniformizing the photon flux density emitted from all planted plants.

  In order to achieve the above object, the present invention comprises the following aspects.

1) A plurality of support columns, and a cultivation rack having a placement unit on which a cultivation tank in which plants are planted and which are provided using the support columns are placed, and LEDs arranged on the cultivation rack with an interval above the placement unit A plant cultivation device comprising a lighting device,
The cultivation rack has a shape that fits in the virtual rectangular parallelepiped, and has a reflective surface facing the inside of the cultivation rack on at least one of the four side surfaces of the virtual rectangular parallelepiped, and can move in the width direction of the side surface. A plant cultivation device in which a plurality of reflectors are provided in a sliding door shape.

  2) The plant cultivation apparatus according to 1), wherein a side surface on which the plurality of reflectors in the virtual rectangular parallelepiped are provided in a sliding door shape is a side surface on which an operator who performs cultivation work faces.

  3) The horizontal rail is arranged between the two columns of the cultivation rack, and the upper end and the lower end of the reflector are slidably fitted in the guide groove provided in the horizontal rail 1) Or the plant cultivation apparatus of 2) description.

  4) The plant cultivation apparatus according to 3) above, wherein the width of the guide groove provided in the horizontal rail is a width capable of fitting a plurality of reflectors.

  5) The plant cultivation apparatus according to 3) above, wherein the width of the guide groove provided in the horizontal rail is a width that allows only one reflector to be fitted.

  6) The horizontal rail is made of a channel-shaped material that opens downward, and a guide groove into which the upper ends of a plurality of reflectors provided in a sliding door shape are fitted is provided on the lower surface of the upper horizontal wall of the horizontal rail. The plant cultivation apparatus according to any one of 3) to 5), wherein the guide groove into which the lower end portion is fitted is provided on the upper surface of the upper horizontal wall of the horizontal rail.

  7) The horizontal rail is made of a rectangular tube shape, and a guide groove into which the upper ends of a plurality of reflectors provided in a sliding door shape are fitted is provided on the lower surface of the horizontal wall below the horizontal rail, and the lower end is also the same. The plant cultivation apparatus according to any one of 3) to 5), wherein the guide groove to be fitted is provided on the upper surface of the upper horizontal wall of the horizontal rail.

  8) Any one of the above 3) to 7), wherein at least one of the guide grooves is provided by fixing a U-shaped groove forming member having a U-shaped cross section provided separately from the horizontal rail to the horizontal rail. The plant cultivation apparatus of crab.

  9) A horizontal beam is placed between the two columns of the cultivation rack, the reflector is a suspension type, and a suspension car provided at the upper end of the reflector is attached to the guide rail provided on the horizontal beam. The plant cultivation apparatus according to 1) or 2), wherein the plant cultivation apparatus is adapted to roll along.

  10) The plant cultivation apparatus according to 9) above, wherein a holding rail is provided above the guide rail, and a suspension wheel is disposed between the guide rail and the holding rail.

  11) The plant cultivation apparatus according to 9) or 10) above, wherein the guide rail is provided on the outer surface of the horizontal rail, and both ends of the guide rail face the outside of the virtual rectangular parallelepiped.

  According to the plant cultivation apparatus of the above 1) to 11), the cultivation rack is shaped so as to be accommodated in the virtual rectangular parallelepiped, and at least one of the four side surfaces of the virtual rectangular parallelepiped is a reflective surface facing the cultivation rack inside And a plurality of reflectors that can move in the width direction of the side surface are provided in a sliding door shape, so that not only the light emitted from the LED lamp of the LED lighting device is directly irradiated to the plant. It is possible to irradiate the plant with reflection by the reflection surface of the reflection plate. Therefore, after using the minimum number of LED lamps necessary to secure the photon flux density necessary for the growth of the plant planted in the cultivation tank placed on the placement section, the cultivation tank placed on the placement section It is possible to make uniform the density of photon flux emitted to all plants planted in the plant. Moreover, by moving at least one of the plurality of reflectors provided in a sliding door shape, the plant planted in the cultivation tank placed on the cultivation rack mounting portion can be easily visually recognized. Thus, it is possible to confirm the growing condition of the plant, and it is possible to easily recognize the LED lighting device and to confirm the necessity of maintenance of the LED lighting device.

  In addition, as in the plant cultivation apparatus of 2) above, the side surface in which the plurality of reflectors in the virtual rectangular parallelepiped in which the cultivation rack fits is provided in a sliding door shape is a side surface facing the worker who performs the cultivation work, By moving at least one of the plurality of reflectors provided in the shape, cultivation work and maintenance work of the LED lighting device can be performed without the reflectors getting in the way.

  According to the plant cultivation apparatus of 3) above, when the reflector is opened and closed, the reflector can be prevented from deviating from the horizontal rail, and the reflector can be opened and closed smoothly.

  According to the plant cultivation apparatus of 4) above, when the reflector is opened and closed, the adjacent reflectors can be crossed in a drawn manner.

  According to the plant cultivation apparatus of 5) above, the clearance between the guide groove and the reflector is reduced, and as a result, the reflector can be attached to the horizontal rail stably without rattling. it can.

  According to the plant cultivation apparatus of 6) and 7) above, the guide groove can be provided in the horizontal rail relatively easily. Further, since the guide groove is integrated with the horizontal rail, the mounting accuracy of the reflector is improved and the appearance is improved.

  According to the plant cultivation apparatus of the above 8), even when the thickness of the reflecting plate varies depending on the material and shape, the guide groove suitable for mounting the reflecting plate to the horizontal beam can be provided in the horizontal beam.

  According to the plant cultivation apparatus of 9), the horizontal movement of the reflector is smooth. Moreover, at the time of replacement | exchange and a maintenance operation | work of a LED lighting apparatus or a cultivation tank, a reflector can be easily removed by lifting a reflector.

  According to the plant cultivation apparatus of 10) above, it is possible to prevent the wheel from being removed from the guide rail of the suspension car provided at the upper end of the reflector.

  According to the plant cultivation apparatus of 11) above, the reflector provided in a sliding door shape can be easily removed from the cultivation rack, and the reflector can be easily replaced.

It is a front view which shows the plant cultivation apparatus of this invention. It is the right view which abbreviate | omitted the cultivation tank of the plant cultivation apparatus of FIG. It is the sectional view on the AA line which omitted the cultivation tank of FIG. FIG. 4 is an enlarged sectional view taken along line B-B in FIG. 3. It is a principal part enlarged view of FIG. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is a principal part enlarged view of FIG. It is the EE sectional view taken on the line of FIG. It is a figure equivalent to FIG. 4 which shows the modification of the guide groove provided in a 1st cross rail. It is a figure equivalent to FIG. 4 which shows the other modification of the guide groove provided in a 1st horizontal cross. FIG. 5 is a view corresponding to FIG. 4 showing a modification of the first horizontal rail and the guide groove provided in the first horizontal rail. It is a figure equivalent to FIG. 4 which shows the other modification of the guide groove provided in a 1st horizontal cross and a 1st horizontal cross. It is a figure equivalent to FIG. 4 which shows the modification of the reflecting plate provided in sliding door shape. It is a figure equivalent to FIG. 4 which shows the modification of the reflecting plate provided in sliding door shape.

  Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the plant cultivation apparatus according to the present invention is applied to hydroponics of a plant.

  1 to 3 show the overall configuration of the plant cultivation apparatus of the present invention, and FIGS. 4 to 9 show the configuration of the main part thereof.

  In the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.

  Further, in the following description, for example, the front side of the paper surface (left side in FIG. 2) in FIG. 1 is the front, the opposite side is the rear, and the left and right when viewing from the front to the rear, that is, the left and right in FIG. Left and right.

  Further, the same components and the same parts are denoted by the same reference symbols throughout the drawings, and redundant description is omitted.

  1 to 3, a plant cultivation apparatus (1) includes a cultivation rack (3) in which a plurality of placement portions (4) for placing a cultivation tank (2) for hydroponics are provided at intervals in the vertical direction. ) And an LED lighting device (5) disposed on the cultivation rack (3) at an interval above each mounting unit (4), and the LED lighting device (5) is mounted on the mounting unit (5). It is attached to the cultivation rack (3) so that the height position of the LED lighting device (5) relative to 4) can be changed.

  In this embodiment, a plurality of placement portions (4) and LED lighting devices (5) are provided side by side in the left-right direction on the front portion and the rear portion of the cultivation rack (3), respectively.

  Although not shown, the upper side of the cultivation tank (2) is covered with a cover, and the plant is cultivated so that the roots extend below the cover and the stem extends above the cover through a through hole formed in the cover. Planted in tank (2). And the nutrient solution containing a water | moisture content and a nutrient is supplied to the part below the cover in a cultivation tank (2), and this nutrient solution is circulated and utilized.

  The cultivation rack (3) includes at least a pair of struts (6) made of two extruded aluminum columns (7) arranged in the front-rear direction and spaced in the left-right direction. There are 2 pairs, here 4 pairs. That is, three struts (7) are provided at the left and right ends of the cultivation rack (3) at intervals in the front-rear direction, and the front strut (7) and the middle strut (7) in the front-rear direction are provided. The front strut pair (6) is formed, and the rear strut pair (6) is formed by the rear end strut (7) and the middle strut (7) in the front-rear direction. Two sets of two support pairs (6) are provided side by side. The intermediate strut (7) in the front-rear direction is shared by the front and rear strut pairs (6).

  Between the front struts (7) of the front strut pairs (6) adjacent to each other in the left-right direction of the cultivation rack (3) and between the rear struts (7) of the rear strut pairs (6) A plurality of extruded aluminum first crosspieces (8) each extending in the left-right direction are arranged at intervals in the vertical direction, and both ends of the first crosspiece (8) are attached to the support posts (7). It is fixed. Also, between the rear end struts (7) of the front strut pair (6) that are adjacent to each other in the left-right direction (between the front struts (7) of the rear strut pair (6)), A plurality of extruded aluminum shaped rectangular tube-like second horizontal rails (10) extending in the left-right direction are arranged at intervals in the vertical direction, and both ends of the second horizontal rail (10) are fixed to the columns (7) Has been. Further, a plurality of extruded aluminum third crosspieces (9) extending in the front-rear direction are arranged at intervals in the vertical direction between the front and rear struts (7) forming each pair of struts (6). At the same time, the front and rear end portions of the third horizontal rail (9) are fixed to the column (7). The first horizontal beam (8), the second horizontal beam (10) and the third horizontal beam (9) are located at the same height.

  One of the first horizontal beam (8), the second horizontal beam (10) and the third horizontal beam (9) at the same height excluding the upper horizontal beam (8) (9) (10) The mounting portion (4) is formed using For example, a plurality of extruded aluminum receiving members (11) extending in the front-rear direction are spaced apart in the left-right direction between the first horizontal bar (8) and the second horizontal bar (10) adjacent in the front-rear direction. Are arranged. The cultivation tank (2) is placed on both the front and rear placement units (4).

  The cultivation rack (3) has a shape that fits within the virtual rectangular parallelepiped, that is, four struts (7) on both the left and right sides of the front and rear sides, and all first horizontal rails (8) on the top and bottom sides of the front and rear sides are ridges. It is a shape that fits within the virtual rectangular parallelepiped, and has a reflective surface facing the inside of the cultivation rack (3) on the front side and the rear side of the four sides of the virtual rectangular parallelepiped, and in the width direction of the front side and the rear side A plurality of movable reflectors (12) are provided in a sliding door shape. In this embodiment, a plurality of mounting portions (4) and LED lighting devices (5) are provided in the left-right direction on the front portion and the rear portion of the cultivation rack (3), respectively, and the virtual The front side surface and the rear side surface of the rectangular parallelepiped are side surfaces on which workers performing cultivation work face each other. Here, four reflecting plates (12) are provided in a sliding door shape between first horizontal bars (8) adjacent in the vertical direction. The upper end and the lower end of the reflecting plate (12) are slidably fitted into guide grooves (13) and (14) provided in the first horizontal rail (8).

  As shown in FIG. 4, the first horizontal rail (8) is made of a channel-like aluminum extruded profile that opens downward, and the cultivation rack (on the lower surface of the upper horizontal wall (8a) of the first horizontal rail (8) ( 3) A guide groove (13) into which the upper end of the reflecting plate (12) is slidably fitted is formed at the inner end. The width of the guide groove (13) is such that a plurality of, here two, reflectors (12) can be fitted. The guide groove (13) includes a groove-forming wall (13a) integrally provided in a downward projecting manner on the upper horizontal wall (8a), and a vertical wall (8b) inside the cultivation rack (3) of the first horizontal rail (8). ). Moreover, the guide groove (14) by which the lower end part of a reflecting plate (12) is slidably inserted in the cultivation rack (3) inner end part in the upper surface of the upper horizontal wall (8a) of the first horizontal rail (8). Is formed. The guide groove (14) is formed between two groove forming walls (14a) integrally provided in an upward projecting manner with an interval in the front-rear direction on the upper horizontal wall (8a). Both guide grooves (13) and (14) have the same position in the front-rear direction, and the upper and lower ends of each of the four reflectors (12) are arranged in the two reflectors (13) and (14). 12) is fitted in the same position in the front-rear direction. That is, two of the four reflectors (12) are fitted into the guide grooves (13) and (14) so that they are at different positions in the left-right direction and at the same position in the front-rear direction. The guide grooves (13), (14) are arranged so that the other two sheets are different from each other in the left-right direction, are different from each other in the front-rear direction, and are in the same position in the front-rear direction. It is fitted inside.

  As the reflector (12), for example, a fine foam sheet formed using a synthetic resin such as polycarbonate, polyethylene, polychlorinated biphenyl, ABS, acrylic, a steel plate coated with a resin on the surface, or a metal deposited on the surface A synthetic resin plate is used. Specific examples include “Panlite” manufactured by Teijin Limited, “Mcpet” manufactured by Furukawa Electric Co., “Diffle” manufactured by Reverse, etc.

  A plurality of LED lighting devices (5) are suspended from the other first horizontal beam (8) and second horizontal beam (10) excluding the first horizontal beam (8) and the second horizontal beam (10) at the lower end. The aluminum extruded profile suspension members (15) are fixed at intervals in the left-right direction. The suspension members (15) of the first horizontal beam (8) and the second horizontal beam (10) adjacent in the vertical direction are fixed at the same position in the horizontal direction.

  As shown in FIGS. 5 to 7, the suspension member (15) has a vertical rectangular tube shape, and the length in the vertical direction is shorter than the interval between the mounting portions (4) adjacent in the vertical direction. Yes. On the side facing the cultivation rack (3) of the first horizontal rail (8), the upper part is fixed to the first horizontal rail (8) and the lower part projects downward from the first horizontal rail (8). An aluminum plate (16) is disposed, and a portion near the upper end of the suspension member (15) is fixed to the lower portion of the plate (16). Although not shown in detail, the upper side is fixed to the second horizontal beam (10) on both the front and rear sides of the second horizontal beam (10), and the lower part protrudes downward from the second beam (10). The aluminum plate (16) is disposed, and a portion near the upper end of the suspension member (15) is fixed between the lower portions of both plates (16).

  LED lighting devices on the left and right inner surfaces of both front and rear columns (7) of two pairs of front and rear columns (6) adjacent to each other at intervals in the left and right direction and on both left and right sides of all the suspension members (15) A plurality of extruded aluminum receiving rails (17) supporting the left and right side edges of (5) are provided at intervals in the vertical direction. Each receiving rail (17) is a vertical portion (17a), and a horizontal portion (17b) that is integrally provided near the upper end of the vertical portion (17a) and protrudes from the vertical portion (17a) to the LED lighting device (5) side It becomes more. Each receiving rail (17) provided on both front and rear struts (7) of each strut pair (6) has two sets of front and rear positions located at the left and right ends of the cultivation rack (3) with the longitudinal direction facing the front and rear direction. Arranged across the three struts (7) of the strut pair (6), the vertical portion (17a) is fixed to the strut (7). Each of the receiving rails (17) provided on the left and right side surfaces of the suspension member (15) has three suspension members (15) provided at intervals in the front-rear direction with the longitudinal direction directed in the front-rear direction. And is fixed to the suspension member (15).

  As shown in FIGS. 5 to 9, the LED lighting device (5) is detachably attached to the frame-shaped horizontal frame (18) and the horizontal frame (18) in a state where the longitudinal direction is directed to the left and right directions. A plurality of straight tubular LED lamps (19), and a plate-shaped reflecting member (21) which is detachably attached to the horizontal frame (18) so as to be positioned above the LED lamps (19) and whose reflecting surface faces downward And.

  The horizontal frame (18) has both left and right frame members (22) made of aluminum extruded profile with the longitudinal direction oriented in the front-rear direction, and both front and rear ends of the left and right frame members (22) with the longitudinal direction oriented in the left-right direction. The front and rear frame members (23) are made of an aluminum extruded profile having a substantially L-shaped cross section, which is disposed between the left and right ends and fixed to the left and right frame members (22).

  The left and right frame members (22) are provided integrally with the vertical lamp support (24) and the lower end of the lamp support (24), project outward from the horizontal frame (18), and are formed on the receiving rail (17). The receiving portion (25) is slidably mounted on the horizontal portion (17b) in the front-rear direction. A plurality of notches (26) extending downward from the upper end are formed in the lamp support (24) at intervals in the front-rear direction. The lamp support part (24) is located inside the horizontal frame (18) from the projecting end of the horizontal part (17b) of the receiving rail (17) to the inside of the LED lighting device (5).

  The straight tubular LED lamp (19) has both left and right ends fitted into a notch (26) formed in the lamp support (24) of the left and right frame members (22) of the horizontal frame (18). It is fixed by a pressing member (27) made of an extruded aluminum material that is detachably attached to the frame (18). The holding member (27) is in the form of a horizontal strip with the longitudinal direction oriented in the front-rear direction, and the front and rear ends are the left and right sides of the upper horizontal part (23a) at the upper ends of the front and rear frame members (23) of the horizontal frame (18). It is fixed to both ends by screws (28). The holding member (27) is formed with a reflection member insertion groove (29) opened inwardly of the horizontal frame (18). The left and right ends of the LED lamp (19) are pressed from above by the pressing member (27) via the elastic member (31), so that the LED lamp (19) is fixed. Current-carrying pins (19a) provided at both ends of the LED lamp (19) in the portion outside the horizontal frame (18) than the lamp support (24) of the left and right frame members (22) of the horizontal frame (18) Further, a connector (33) attached to the power supply wiring (32) is connected.

  The reflective member (21) has both right and left side edges fitted into the reflective member insertion groove (29) of the holding member (27), and the upper wall portion of the reflective member insertion groove (29) of the holding member (27), The screw (34) penetrating the reflecting member (21) is screwed into a screw hole (not shown) provided in the lower wall portion of the reflecting member insertion groove (29) of the pressing member (27), thereby holding the pressing member. (27) is detachably fixed. Therefore, the reflecting member (21) is detachable from the horizontal frame (18) separately from the LED lamp (19). The reflecting member (21) has a through hole (35) for releasing heat generated from a power source (not shown) of the LED lamp (19).

  The receiving part (25) of the left and right frame members (22) of the horizontal frame (18) of the LED lighting device (5) depends on the type of plant planted in the cultivation tank (2) and the growth status of the plant, It is placed on the horizontal portion (17b) of the receiving rail (17) at any height provided above each placement portion (4). And by changing the height position of the LED lighting device (5) with respect to the plant in the cultivation tank (2) placed on the mounting part (4), depending on the type of plant and the growth status of the plant, the plant It is possible to adjust the light intensity irradiated to the.

  In the said embodiment, although the plant cultivation apparatus is applied to the hydroponic cultivation of a plant, it is not limited to this, It may be applied also to the soil cultivation cultivation of a plant. In this case, the plant is planted in the soil placed in the cultivation tank placed on the placement section (4).

  10 and 11 show a modification of the guide groove provided on the first horizontal rail and in which the upper and lower ends of the reflector are slidably fitted.

  In FIG. 10, two guides in which the upper end of the reflector (12) is slidably fitted into the inner end of the cultivation rack (3) on the lower surface of the upper horizontal wall (8a) of the first horizontal rail (8). Grooves (40) are formed side by side. The width of the guide groove (40) in the front-rear direction is such that the two reflecting plates (12) can be fitted. The guide groove (40) is formed between the two groove forming walls (40a) integrally provided in a downward projecting manner on the upper horizontal wall (8a) at an interval in the front-rear direction and inside the cultivation rack (3). It is formed between the wall (40a) and the vertical wall (8b) inside the cultivation rack (3) of the first horizontal rail (8). In addition, two guide grooves (in which the lower end of the reflector (12) is slidably fitted into the inner end of the cultivation rack (3) on the upper surface of the upper horizontal wall (8a) of the first horizontal rail (8) ( 41) is formed. The guide groove (41) is formed between three groove forming walls (41a) integrally provided in an upward projecting manner with an interval in the front-rear direction on the upper horizontal wall (8a). Both guide grooves (40) and (41) have the same position in the front-rear direction, and the upper and lower ends of each of the four reflectors (12) are arranged on the two reflectors (40) and (41). 12) is fitted in the same position in the front-rear direction. That is, two of the four reflectors (12) are fitted into the guide grooves (40) and (41) so that they are at different positions in the left-right direction and at the same position in the front-rear direction. The guide grooves (40), (41) are arranged so that the other two sheets are at positions different from each other in the left-right direction, are different from each other in the front-rear direction, and are at the same position in the front-rear direction. It is fitted inside.

  In FIG. 11, it is provided at the inner edge of the cultivation rack (3) on the lower surface of the upper horizontal wall (8a) of the first horizontal rail (8), and the upper end of the reflector (12) is slidably fitted. The guide groove (45) is formed separately from the first horizontal crosspiece (8) and has a substantially U-shaped groove forming member (46) having a cross-sectional shape opened downward, and is formed on the upper horizontal wall (8a). It is provided by being fixed to the lower surface. The groove forming member (46) is made of a suitable synthetic resin or metal. The width of the guide groove (45) is such that a plurality of, here two, reflectors (12) can be fitted.

12 and 13 show a first horizontal rail and a modification of the guide groove provided in the first horizontal rail. In FIG. 12, the front strut pair (6) adjacent to each other with a spacing in the left-right direction of the cultivation rack (3). ) Between the front struts (7) and between the rear struts (7) of the rear strut pair (6), the first crosspiece (50) is a rectangular tubular aluminum extrusion. A guide groove that is made of wood and into which the upper end of the reflector (12) is slidably fitted into the inner end of the cultivation rack (3) on the lower surface of the lower horizontal wall (50a) of the first horizontal rail (50). 51) is formed. The width of the guide groove (51) is such that a plurality of, here two, reflectors (12) can be fitted. The guide groove (51) is formed between two groove forming walls (51a) provided integrally with the lower horizontal wall (50a) so as to protrude downward and spaced in the front-rear direction. Moreover, the guide groove (52) by which the lower end part of a reflecting plate (12) is slidably fitted in the inner end part of the cultivation rack (3) on the upper surface of the upper horizontal wall (50b) of the first horizontal rail (50). Is formed. The guide groove (52) is formed between two groove forming walls (52a) integrally provided in an upward projecting manner with an interval in the front-rear direction on the upper horizontal wall (50b). The front and rear positions of both guide grooves (51) and (52) are the same, and the upper and lower ends of each of the four reflectors (12) are arranged on the two guide grooves (51) and (52). 12) is fitted in the same position in the front-rear direction. That is, two of the four reflectors (12) are fitted into the guide grooves (51) and (52) so that they are at different positions in the left-right direction and at the same position in the front-rear direction. The guide grooves (51) (52) are arranged so that the other two sheets are at positions different from each other in the left-right direction, are different from each other in the front-rear direction, and are at the same position in the front-rear direction. It is fitted inside.

  In FIG. 13, it is provided at the inner end of the cultivation rack (3) on the lower surface of the lower horizontal wall (50a) of the first horizontal rail (50), and the upper end of the reflector (12) is slidably fitted. The guide groove (55) is formed by deforming the lower horizontal wall (50a) of the first horizontal rail (50) so as to be recessed upward, and thereby the vertical wall (3) inside the cultivation rack (3) of the first horizontal rail (50) ( 50c). The width of the guide groove (55) is such that a plurality of, here two, reflectors (12) can be fitted.

  14 and 15 show a modification of the reflecting plate provided in a sliding door shape.

  In FIG. 14, the struts between the front end struts (7) of the front strut pairs (6) adjacent to each other in the left-right direction of the cultivation rack (3) and the rear struts of the rear strut pair (6) ( 7) The first horizontal beam (50) arranged between the two is made of extruded aluminum in the shape of a square tube, and is provided with four sliding doors between the first horizontal beam (50) adjacent in the vertical direction. The reflecting plate (12) is a suspension type.

  On the outer surface of the vertical wall (50d) outside the cultivation rack (3) on the first horizontal rail (50), the horizontal part (60a) protruding outward from the cultivation rack (3) and the tip of the horizontal part (60a) are integrated A first guide rail (60) comprising a vertical portion (60b) provided and projecting upward, and a horizontal portion (61a) projecting outward from the cultivation rack (3) above the first guide rail (60) And a second guide rail (61) which is provided integrally with the tip of the horizontal portion (61a) and which includes a vertical portion (61b) protruding upward. The width of the horizontal portion (61a) of the second guide rail (61) is wider than the width of the horizontal portion (60a) of the first guide rail (60), and the vertical portion (61b) of the second guide rail (61). ) Is located outside the cultivation rack (3) from the vertical part (60b) of the first guide rail (60).

  A plurality of suspension vehicle support members (62) whose upper ends protrude upward from the upper end of the reflecting plate (12) are fixed to the upper end of the outer surface of each reflecting plate (12) at intervals in the left-right direction. The suspension car (63) is rotatable about the axis extending in the front-rear direction on the surface facing the inside of the cultivation rack (3) that protrudes above the upper end of the reflector (12) in the suspension car support member (62) The suspension wheel (63) of the two reflectors (12) rolls in the left-right direction along each guide rail (60) (61).

  Also connected to the outer edge of the cultivation rack (3) of the upper horizontal wall (50b) of the first horizontal rail (50), both guide rails (60) and (61), the upper end of the reflector (12), and the suspension car support A cover (64) covering the member (62) and the suspension wheel (63) is provided integrally.

  In addition, it is preferable that the left and right ends of the guide rails (60) and (61) face the outside of the virtual rectangular parallelepiped.

  In FIG. 15, holding rails (65) and (66) are provided at intervals above the guide rails (60) and (61). The first holding rail (65) provided above the first guide rail (60) is arranged on the outer surface of the vertical wall (50d) outside the cultivation rack (3) in the first horizontal rail (50). The horizontal portion (65a) protruding outward and the vertical portion provided integrally with the tip of the horizontal portion (65a) and projecting downward and positioned above the vertical portion (60b) of the first guide rail (60) ( 65b). The second holding rail (66) provided above the second guide rail (61) is integrally provided on the horizontal wall (64a) of the cover (64) and protrudes downward, and the second guide rail (61) The vertical part (66b) is located above the vertical part (61b). The suspension wheel (63) rolls between the vertical portions (60b) (65b) and (61b) (66a).

  In addition, it is preferable that the left and right ends of the guide rails (60) (61) and the holding rails (65) (66) face the outside of the virtual rectangular parallelepiped.

  The plant cultivation device according to the present invention is suitably used in plant factories, vegetable factories, seedling raising devices and the like using LED lighting devices as artificial light sources.

(1): Plant cultivation equipment
(2): Cultivation tank
(3): cultivation rack
(4): Placement section
(5): LED lighting device
(7): Prop
(8): 1st horizontal cross
(8a): Upper horizontal wall
(12): Reflector
(13) (14) (40) (41) (45) (51) (52) (55): Guide groove
(17): Receiving rail
(15): Horizontal frame
(16): LED lamp
(17): Reflective member
(46): Groove forming member
(50): 1st horizontal cross
(50a): Lower wall
(50b): Upper wall
(60) (61): Guide rail
(63): Hanging car
(65) (66): Presser rail

Claims (11)

A plurality of support columns, and a cultivation rack having a placement unit for placing a cultivation tank in which plants are planted and provided using the support columns, and an LED lighting device disposed on the cultivation rack with an interval above the placement unit A plant cultivation device comprising:
The cultivation rack has a shape that fits in the virtual rectangular parallelepiped, and has a reflective surface facing the inside of the cultivation rack on at least one of the four side surfaces of the virtual rectangular parallelepiped, and can move in the width direction of the side surface. A plant cultivation device in which a plurality of reflectors are provided in a sliding door shape. The plant cultivation apparatus according to claim 1, wherein a side surface on which the plurality of reflectors in the virtual rectangular parallelepiped are provided in a sliding door shape is a side surface on which an operator who performs cultivation work faces. The horizontal beam is arrange | positioned between the two support | pillars of the cultivation rack, and the upper end part and lower end part of the reflecting plate are slidably inserted in the guide groove provided in the horizontal beam. The plant cultivation apparatus as described. The plant cultivation device according to claim 3, wherein the width of the guide groove provided in the horizontal rail is a width that allows a plurality of reflectors to be fitted. The plant cultivation device according to claim 3, wherein the width of the guide groove provided in the horizontal rail is a width that allows only one reflector to be fitted. The horizontal rail is made of a channel-shaped material that opens downward, and a guide groove into which the upper ends of a plurality of reflectors provided in a sliding door shape are fitted is provided on the lower surface of the upper horizontal wall of the horizontal rail, and also the lower end. The plant cultivation apparatus according to any one of claims 3 to 5, wherein a guide groove into which the guide is inserted is provided on the upper surface of the upper horizontal wall of the horizontal rail. The horizontal rail is made of a rectangular tube shape, and a guide groove into which the upper end of a plurality of reflectors provided in a sliding door shape is fitted is provided on the lower surface of the horizontal wall under the horizontal beam, and the lower end is also fitted. The plant cultivation device according to any one of claims 3 to 5, wherein a guide groove to be formed is provided on an upper surface of an upper horizontal wall of the horizontal rail. 8. At least one of the guide grooves is provided by fixing a U-shaped groove forming member having a U-shaped cross section provided separately from the horizontal rail to the horizontal rail. Plant cultivation equipment. A horizontal rail is arranged between the two columns of the cultivation rack, the reflector is a hanging type, and a suspension car provided at the upper end of the reflector is along a guide rail provided on the horizontal rail. The plant cultivation device according to claim 1 or 2, wherein the plant cultivation device is configured to roll. The plant cultivation device according to claim 9, wherein a pressing rail is provided above the guide rail, and a suspension wheel is disposed between the guide rail and the pressing rail. The plant cultivation apparatus according to claim 9 or 10, wherein a guide rail is provided on an outer surface of the horizontal rail, and both ends of the guide rail face the outside of the virtual rectangular parallelepiped.

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