JP3926911B2 - Seedling storage equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling storage device configured to irradiate light from the side of a seedling in order to suppress the growth of the seedling upward in a seedling storage device for curing or storing the produced seedling.
[0002]
[Prior art]
In the field of seedling production, various apparatuses for mass-producing grafted seedlings have been developed. However, since the demand period for seedlings is generally relatively short, there are restrictions on the production amount from the viewpoint of seedling storage and distribution. For this reason, with the mass production of seedlings, the importance of seedling storage devices capable of curing the grafted seedlings produced and storing them for a long time in a healthy state is increasing.
[0003]
In consideration of mass production and distribution of seedlings, small seedlings are easier to handle and convenient. For that purpose, it is an effective method to suppress the growth activity of seedlings to some extent. A conventional seedling storage device that realizes such a method is to suppress the growth by placing the produced seedling under low temperature and low illumination.
[0004]
Further, in the seedling raising apparatus for cultured seedlings, in order to suppress the length of the seedlings in particular, as shown in FIG. 10, the light necessary for growth is irradiated from the side of the seedlings rather than from above the seedlings. Proposed. Specifically, a large number of diffusible optical fibers 1 having a diameter of about 1 mm are stuck in parallel on the surface of the reflective film 2 to form a diffusible fiber belt 3, and this belt 3 is used as an incubator 4 in which seedlings are planted. It was arranged on the side.
[0005]
[Problems to be solved by the invention]
However, when the conventional seedling raising device as described above is applied to the seedling storage device, there is a problem that a large number of optical fibers 1 are required to irradiate a wide area, and the cost increases. Further, a stand for holding the belt 3 formed of the optical fiber 1 in a predetermined state is necessary, and there is a problem that the apparatus is increased in size and complexity.
[0006]
In addition, as shown in FIG. 10, when the incubator 4 is disposed between the pair of belts 3 and 3, the optical fiber 1 on which the incubator 4 forms the belt 3 surface when the incubator 4 is put in and out. There is a risk of being caught or damaged. For this reason, the incubator 4 must be taken in and out with great care, which is inconvenient.
[0007]
Further, in a thin optical fiber 1 having a diameter of about 1 mm, when a certain length is required, it is necessary to make light incident from both ends of the belt 3, and two light sources 5 are required as shown in FIG. It was a factor of up. Alternatively, if both ends of the belt 3 are connected so as to be connected to one light source 5, a wasteful space is generated, which is not practical.
[0008]
The present invention has been made by paying attention to the problems of the prior art as described above. The overall structure is simple and easy, and the cost can be reduced, and the light irradiation structure itself has rigidity. It is an object of the present invention to provide a seedling storage device that can efficiently irradiate the side of a seedling with light incident from a light source.
[0009]
[Means for Solving the Problems]
  The gist of the present invention for achieving the above-described object resides in the following items.
  [1] In the seedling storage device (10) for curing or storing the produced seedling, the seedling storage device (10) configured to irradiate light from the side of the seedling so as to suppress the upward growth of the seedling. Because
  A light emitting body (41) that extends in the longitudinal direction in the form of a tube or rod, reflects light transmitted from one end of the light source to the other end, and emits light from at least one radial direction over the entire length;
  A light guide plate (51) that is molded into a plate shape, diffuses light incident from one side edge (51a) thereof almost uniformly from at least one of the front and back surfaces, and irradiates the light to the outside;
  A light emitting surface (51b) of the light guide plate (51) is fixed in a state where the light emitting portion (41a) side of the light emitter (41) is placed along one side edge (51a) of the light guide plate (51). Placed on the side of the tray,
  The light guide plate (51B) itself is provided with a receptacle (20) for supporting a tray on which seedlings are planted.A seedling storage device (10) characterized in that.
[0010]
  [2] In the seedling storage device (10) for curing or storing the produced seedling, the seedling storage device (10) for irradiating light from the side of the seedling in order to suppress the upward growth of the seedling,
  A light emitting body (41A) that extends in a longitudinal direction in the form of a tube or rod, reflects light transmitted from one end of the light source to the other end, and irradiates in one direction from the other end (45);
  A light guide plate (51A) that is molded into a plate shape, diffuses light incident from one end side thereof almost uniformly over the entire area of at least one of the front and back surfaces, and irradiates the light to the outside;
  At least one incident recess (56) whose center is recessed inside the light guide plate (51A) is formed on at least one side edge (51a) of the light guide plate (51A), and the light emission in the incident recess (56). The body (41A) is fixed in a state where the other end is opposed, and the light irradiation surface (51b) of the light guide plate (51A) is disposed on the side of the tray on which the seedlings are planted.,
  The light guide plate (51B) itself is provided with a receptacle (20) for supporting a tray on which seedlings are planted.A seedling storage device (10) characterized in that.
[0012]
  [3The light guide plate (51B) emits light to the outside over the entire area of both the front and back surfaces,
  The receiver (20) is provided on each of the front and back surfaces of the light guide plate (51B),
  The trays are respectively supported on the front and back sides of the light guide plate (51B).[1] or [2]The seedling storage device (10) as described.
[0013]
Next, the operation based on the above solution will be described.
According to the seedling storage device (10) according to [1], light incident from a light source from one end of a light emitting body (41) extending in a longitudinal direction in a tube or rod shape is reflected to the other end of the light emitting body (41). Communicated. Thus, the light uniformly guided to the entire illuminator (41) is irradiated to the outside from at least one radial direction, that is, from the side of the light emitting portion (41a) which is the cross-sectional piece side of the tube or rod.
[0014]
The light emitting part (41a) side of the light emitter (41) is fixed in a state along the one side edge (51a) of the light guide plate (51). Light incident on one side edge (51a) of the light guide plate (51) from the light emitter (41) is diffused and guided almost uniformly from at least one of the front and back surfaces of the light guide plate (51) formed into a plate shape. Irradiated from the plane to the outside.
[0015]
The light irradiated from the light source is absorbed to some extent while being transmitted from the light emitter (41) to the light guide plate (51), and is irradiated as light of light quality suitable for long-term storage of seedlings. Since the light irradiation surface (51b) of the light guide plate (51) is disposed on the side of the tray in which the seedlings are planted, the growth of the seedlings extending upward can be suppressed.
[0016]
Since the light guide plate (51) is plate-like and planar, and has structural strength per se, a special structure for supporting the light guide plate (51) is not necessary. It can also be used as a support of the above structure. In addition, there is no possibility that the tray will be caught on the light guide plate (51) or cause a fatal damage when the tray is inserted or removed.
[0017]
The light emitter (41) is formed in a tube or rod shape and has a larger diameter than a conventional general optical fiber. Even if the entire length is increased as necessary, the light from the light source is emitted from the light emitter. (41) There is no risk of significant loss during transmission. Therefore, it is not necessary to make light incident from both ends of the light emitter (41).
[0018]
According to the seedling storage device (10) described in [2], the luminous body (41A) is of a more general property that irradiates light incident from the light source from one end in one direction from the other end. is there. Only the other end of the light emitter (41A) needs to be fixed in a state of being opposed to the incident concave portion (56) of the light guide plate (51A), and the configuration can be simplified. Here, for the light emitter (41A), for example, a point light source-like light emitter such as a light emitting diode or a laser diode may be employed.
[0019]
Although the irradiation range of the light emitter (41A) is extremely limited, at least one incident concave portion is formed so that the center is recessed at least on one side edge (51a) of the light guide plate (51A) inside the light guide plate (51A). By forming (56), the light incident from the other end of the light emitter (41A) can be received at various incident angles that are easy to guide the entire light guide plate (51A), particularly near the incident portion.
[0020]
  As described above, since the light guide plate (51, 51A) is plate-like and planar, and has structural strength itself,[1] and [2]As described, the light guide plate (51B) itself is provided with a receptacle (20) for supporting a tray on which seedlings are planted.ByThe light guide plate (51B) can be used not only as an irradiating means but also as a tray support structure, and the configuration of the apparatus can be further simplified.
[0021]
  In particular,[3], When the light guide plate (51B) irradiates light over both the front and back surfaces, if the receiving device (20) is provided on the front and back surfaces of the light guide plate (51B), respectively, Space can be used effectively.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, various embodiments representing the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of the present invention.
The seedling storage device 10 according to the present embodiment is a device for storing so-called grafted seedlings for a long time in a cured or healthy state, and in order to appropriately suppress the growth of the grafted seedlings upward, the side of the grafted seedlings It is configured so that the temperature and humidity can be adjusted while irradiating light from the direction.
[0023]
As shown in FIGS. 1 and 2, the seedling storage device 10 includes a growing case 15, a storage case 21 surrounding the growing case 15, and a heat exchange case 30 in a box-shaped main body cover 10 a. . Side illumination devices 40 are disposed on both sides of the growing case 15.
[0024]
The main body cover 10a is assembled from a heat insulating light shielding plate 11 having six surfaces. In FIG. 2, a sleeve 12 that forms an insertion hole is fitted to one heat insulating light shielding plate 11. A light emitting body 41 described later or various cables are inserted into the sleeve 12.
[0025]
The growing case 15 forms a room for curing or storing grafted seedlings, and each face wall is made of a light-transmitting material. A large number of air supply holes 16a are formed in the front wall 16 so as to be regularly arranged over the entire area. On the other hand, a large number of exhaust holes 17a are formed in the rear wall 17 so as to be regularly arranged over the entire area. Here, the opening ratio of the exhaust holes 17a is set to be approximately the same as that of the air supply holes 16a.
[0026]
Inside the both side walls 18, 18 of the growing case 15, receiving members 20 for supporting the tray A on which grafted seedlings are planted in a substantially horizontal state are provided in three upper and lower stages. The receptacle 20 is made of a narrow plate material arranged in a pair on the left and right. Here, the grafted seedling is a seedling obtained by grafting a sprout having an excellent character to a rootstock seedling having a strong root planted in a recess formed in a plurality of trays A using an automatic grafting device or the like. Point to. In addition, the grafted seedlings need so-called curing that maintains light, temperature and humidity for a certain period of time in order to make it easier for the saplings to settle on the rootstock.
[0027]
A dummy tray A1 on which seedlings are not planted is supported by the uppermost receiving members 20 and 20. This dummy tray A1 is necessary for placing trays A other than the uppermost tray in the same light environment. That is, the side illumination is reflected on the bottom surfaces of the trays A and A1 located above and indirectly irradiated onto the tray A below. The dummy tray A1 can also be used for a control experiment for confirming a qualitative change of a medium when no seedling is planted. An environmental probe 26 such as a temperature / humidity sensor or an optical sensor is disposed in the vicinity of the center through the support bracket 25 inside the growing case 15.
[0028]
The storage case 21 is provided in such a size as to surround each surface wall of the growing case 15 with an equally spaced gap. Between the outer wall of the growing case 15 and the inner wall of the storage case 21, air whose temperature and humidity are adjusted is fed into the growing case 15, and the air discharged from the growing case 15 is circulated to the heat exchange case 30. The ventilation space 23 is set. The direction of air flow is indicated by arrows in FIG.
[0029]
A side illumination device 40 is disposed in the ventilation space 23 so as to be in contact with both side walls 18 of the growth case 15. The side lighting device 40 forms the basis of the present invention, and includes a light emitting body 41 extending in a tube shape and a plate-shaped light guide plate 51.
[0030]
As shown in FIG. 3, the light emitter 41 is a recently developed material that reflects and transmits light incident from a light source from one end to the other end and emits light from one side (one radial direction) across the entire length. More specifically, a light emitting tube 43 formed from a light guide film is housed in a transparent outer casing 42, and a reflector film 44 that reflects upward light downward (one radial direction) is attached to the outer peripheral piece of the light emitting tube 43. It is composed by wearing.
[0031]
In such a light emitting body 41, light incident from one end thereof is transmitted to the other end side by repeating regular reflection and diffuse reflection with respect to the light emitting tube 43 and the reflector film 44, and is not covered by the reflector film 44 in the transmission process. Light having a deep incident angle leaks to the outside with respect to the light emitting portion 41 a of the light emitting tube 43 and emits light.
[0032]
As a light source (not shown) for causing light to enter one end of the light emitter 41, a xenon discharge lamp or a microwave lamp from which heat rays have been removed is suitable. Here, the microwave lamp is one in which sulfur gas is mainly sealed in a quartz glass bulb, and this is irradiated with microwaves output from a magnetron to emit light. Such xenon discharge lamps and microwave lamps have characteristics that they have higher luminous efficiency and longer life than other general lamps, and can obtain visible light having a continuous spectrum similar to sunlight. The light source and the optical filter are provided outside the apparatus 10.
[0033]
The light guide plate 51 is formed in a rectangular plate shape, and diffuses light incident from the one side edge 51a almost uniformly over the entire surface and irradiates the light to the outside. Various types of light guide plates 51 have been developed. Specifically, for example, a light guide plate having a structure as shown in FIG. 4 may be used.
[0034]
That is, the light guide plate 51 is formed by sticking a surface light diffusion film 53 for light irradiation on the surface of a transparent acrylic plate 52 having excellent light guide properties, and sticking a light reflecting sheet 54 on the back surface. The surface of the transparent acrylic plate 52 on which the light reflecting sheet 54 is pasted is the light irradiation surface 51 b of the light guide plate 51. A light reflecting tape 55 is attached to each end edge except one side edge 51a where light enters from the light guide plate 51.
[0035]
Also, inside the transparent acrylic plate 52, bubbles for adding gradation are incorporated so that light incident from one side edge 51a is uniformly scattered over the entire surface. In such a light guide plate 51, light is uniformly irradiated from the entire surface, that is, the entire surface on which the surface light diffusion film 53 is attached.
[0036]
As shown in FIGS. 5 and 6, the light-emitting portion 41 a of the light-emitting body 41 is fixed along one side edge 51 a of the light guide plate 51. More specifically, three clamps 46 are fastened to the other end side of the light emitting body 41 at intervals, and one end of each clamp 46 is attached along one side edge 51 a of the light guide plate 51 by a mounting screw 47. It is fixed.
[0037]
As shown in FIG. 1, the side lighting devices 40 as described above are arranged along the both side walls 18 and 18 of the growing case 15 so as to be arranged in two upper and lower stages. As shown in FIG. 2, the light emitter 41 of the side lighting device 40 is introduced into the device through the insertion hole of the sleeve 12 in the main body cover 10 a, penetrates the outer wall of the storage case 21, and the growth case 15. It is arranged between the storage case 21. Since the light guide plate 51 is a plate body having a considerable strength per se, the planar shape can be maintained by simply being fixed to several places on the outer wall of the growing case 15 or the inner wall of the storage case 21.
[0038]
A heat exchange case 30 that communicates with the bottom 22 of the storage case 21 is disposed below the storage case 21. In the heat exchange case 30, an air adjusting means 31 for adjusting the temperature and humidity of the air and sending it in a certain direction is disposed. Specifically, the air adjusting means 31 is formed by combining a blower 32 with a cooler, a heater, and a humidifier. The operation of the component device of the air adjusting means 31 is controlled by a control device (computer).
[0039]
Next, the operation will be described.
According to the seedling storage device 10, one end of the light emitter 41 of the side lighting device 40 is extended outside the main body cover 10a, and the light source and the optical filter (not shown) are provided outside the device 10. The countermeasure for heat generation caused by the light source can be omitted in the interior of the apparatus 10. Here, if the light source is a xenon discharge lamp or a microwave lamp from which heat rays have been removed, visible light having a continuous spectrum similar to sunlight suitable for plants can be obtained with high luminous efficiency and long life. In particular, the microwave lamp is convenient because it contains almost no ultraviolet or infrared part and is close to a point light source.
[0040]
Light incident from one end of the light emitter 41 from the light source is transmitted to the other end side by repeating regular reflection and diffuse reflection with respect to the light emitting tube 43 and the reflector film 44. Thus, the light uniformly guided to the entire light emitter 41 is irradiated with light having a deep incident angle leaking to the light emitting portion 41a of the light emitting tube 43 not covered with the reflector film 44 in the transmission process. The
[0041]
The light emitting portion 41 a side of the light emitter 41 is fixed via a clamp 46 along the one side edge 51 a of the light guide plate 51, and light is incident on the one side edge 51 a of the light guide plate 51 from the light emitter 41. The Light incident on the light guide plate 51 is diffused and guided almost evenly through the transparent acrylic plate 52 to the other edge side due to the presence of gradation-added bubbles in the transparent acrylic plate 52, and light irradiation with the surface light diffusion film 53 is present. Irradiated from the entire surface 51b to the outside.
[0042]
According to the side illumination device 40 as described above, the light emitted from the light source is appropriately absorbed by the optical filter or the like while being transmitted from the light source to the light emitter 41, and the grafted seedling is cured and stored for a long time. Light quality suitable for the control of, for example, the ratio of red light (R) to far red light (FR) (R / FR) involved in the synthesis and degradation of phytochrome, which is closely related to plant morphogenesis Irradiated as light. As shown in FIG. 1, since the light irradiation surface 51b of the light guide plate 51 is disposed on the side of the tray A in which the grafted seedlings are planted, the growth is such that the seedlings extend upward in combination with the effect of light quality. Can be suppressed.
[0043]
Since the light guide plate 51 is plate-like and planar, and has structural strength itself, a special structure for supporting the light guide plate 51 is not necessary, and the light guide plate 51 itself is used as a support for other structures. It can also be used. In the present embodiment, the side wall 18 of the growing case 15 exists between the tray A and the light guide plate 51. However, even if the light guide plate 51 is disposed immediately on the side of the tray A, when the tray A is taken in and out, There is no possibility that the tray A will be caught by the light guide plate 51 or the light guide plate 51 may be fatally damaged.
[0044]
In addition, the light emitting body 41 is formed in a tube shape, has a larger diameter than a conventional general optical fiber, and can be fitted with a reflective material on one end surface, so even if the total length is increased as necessary, There is no risk that the light from the light source will be significantly diminished while being transmitted through the light emitter 41. Therefore, it is not necessary to make light incident from both ends of the light emitting body 41, and the configuration can be simplified.
[0045]
The air in the storage case 21 is first adjusted to a desired temperature and humidity by the air adjusting means 31 in the heat exchange case 30 and sent to the front wall 16 side of the growing case 15 by the operation of the blower 32. The adjusted air is blown out into the growing case 15 through a large number of air supply holes 16 a in the front wall 16. In general, in the case of curing, high humidity is required in order to suppress moisture evaporation from the joint of the grafted seedling.
[0046]
Then, the air in the growing case 15 is discharged along the inside of the storage case 21 from the numerous exhaust holes 17a in the rear wall 17. Thus, by maintaining a good distribution of environmental factors such as temperature and humidity in the growing case 15, the grafted seedling can be stored for a long time in a cured and healthy state, especially by the side lighting device 40. Growth of grafted seedlings can be suppressed.
[0047]
7 and 8 show a second embodiment of the present invention.
In the present embodiment, the side lighting device 40A is different from the side lighting device 40 of the first embodiment described above. The side illumination device 40 </ b> A also includes a light emitting body 41 </ b> A and a plate-shaped light guide plate 51 </ b> A extending in the longitudinal direction, but these configurations are different from the light emitting body 41 and the light guide plate 51.
[0048]
As shown in FIG. 8, the light emitting body 41A is formed in a rod shape, transmits light incident from the light source from one end thereof to the other end, and transmits in one direction like a spotlight from the tip 45 which is the other end. It is of a nature to irradiate. The outer peripheral surface of the light emitter 41A is covered with a protective film that does not leak light.
[0049]
The light guide plate 51A is substantially the same as the light guide plate 51, but one short side instead of one long side is set as one side edge 51a on which light is incident. An incident recess 56 whose center is recessed is formed on the inner side of the light guide plate 51A substantially at the center of the one side edge 51a of the light guide plate 51A.
[0050]
As shown in FIG. 7, the tip 45 of the light emitter 41A is fixed in a state facing the incident recess 56 of the light guide plate 51A. Here, the light emitter 41A does not need to be directly fixed to the light guide plate 51A, and both may be fixed at relative positions as shown in FIG. Of course, the light irradiation surface 51b of the light guide plate 51A is also arranged on the side of the tray A where the seedlings are planted.
[0051]
According to the above-described side illumination device 40A, the light emitter 41A can use a lighter having a more general property of irradiating light incident from one end of the light source from the tip 45 of the other end. It is only necessary to fix the tip portion 45 of the light-emitting body 41A while facing the incident concave portion 56 of the light guide plate 51A, and the configuration can be simplified.
[0052]
Although the irradiation range of the light emitter 41A is extremely limited, the tip portion of the light emitter 41A is formed by forming the incident recess 56 in the one side edge 51a of the light guide plate 51A so that the center is recessed inside the light guide plate 51A. The light incident from 45 can be received at various incident angles that are easy to be guided to the entire light guide plate 51A, particularly in the vicinity of the incident portion.
[0053]
In the present embodiment, a point light source-like light emitter such as a light-emitting diode or a laser diode may be employed as the light emitter. In addition, although only one incident concave portion 56 is provided on the one side edge 51a, a plurality of incident recesses 56 may be provided, and the position to be provided is not limited to the one side edge 51a.
[0054]
FIG. 9 shows a third embodiment of the present invention.
In the present embodiment, the light guide plate 51B irradiates the light to the outside over both the front and back surfaces, that is, the surface light diffusion film 53 is attached to both the front and back sides of the transparent acrylic plate 52 shown in FIG. It is. The light guide plate 51B is configured as a partition plate for partitioning a large storage chamber, and the holders 20 for supporting the tray A on which grafted seedlings are planted are arranged on the front and back surfaces of the light guide plate 51B itself at predetermined intervals. Has been.
[0055]
As described above, the light guide plate 51B is plate-like and planar, and is structurally strong in itself. Therefore, if the light guide plate 51B itself is provided with the support 20 for supporting the tray A as in the present embodiment, the light guide plate 51B can be used as a support structure for the tray A as well as the side illumination means. Therefore, the configuration of the apparatus can be further simplified.
[0056]
In particular, as in the third embodiment, when the light guide plate 51B irradiates light over both the front and back surfaces, by providing the receiver 20 on the front and back surfaces of the light guide plate 51B, Space can be used effectively. In the second and third embodiments, parts that are the same as those in the first embodiment are given the same reference numerals, and redundant descriptions are omitted.
[0057]
Note that the seedling storage device according to the present invention is not limited to the various embodiments described above. For example, in the first embodiment, the light guide plate 51 is arranged in two steps on the left and right sides of the tray, that is, on both sides of the growth case 15, but depending on the specific size of the light guide plate 51, The number and position may be determined as appropriate. Moreover, in the said embodiment, although what was comprised comparatively small for seedling storage experiments was shown, you may comprise as a big storage.
[0058]
【The invention's effect】
According to the seedling storage device of the present invention, the light irradiated from the light source is suitable for curing and storing seedlings from at least one of the front and back surfaces of the light guide plate after being transmitted through the light emitter or the light guide plate. Since it is irradiated from the side of the seedling as light of light quality, the seedling can be stored for a long period of time in a state where growth is suppressed as much as possible.
[0059]
Here, since the light guide plate is plate-like and planar, and itself has structural strength, there is no need for a special structure for supporting the light guide plate, and the light guide plate itself is used as a support for other structures. It is also possible to do. In addition, there is no risk that the tray will be caught on the light guide plate or cause a fatal damage when the tray is inserted or removed.
[0060]
In addition, the light emitter is formed in a tube or rod shape, and has a larger diameter than a conventional general optical fiber. Even if the total length is increased as necessary, the light from the light source is transmitted through the light emitter. Therefore, there is no risk that the light will be significantly diminished during the operation, and therefore it is not necessary to make light incident from both ends of the light emitter.
[0061]
  Furthermore, the light guide plate itself is provided with a support for supporting a tray on which seedlings are planted.ByThe light guide plate can be used not only as an irradiating means but also as a tray support structure, and the configuration of the apparatus can be further simplified.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a seedling storage device according to a first embodiment of the present invention as viewed from the front side.
FIG. 2 is a cross-sectional view of the seedling storage device according to the first embodiment of the present invention as viewed from the side.
FIG. 3 is a perspective view showing a light emitter constituting the seedling storage device according to the first embodiment of the present invention.
FIG. 4 is a perspective view showing a light guide plate constituting the seedling storage device according to the first embodiment of the present invention.
FIG. 5 is a front view showing a state in which a light emitter and a light guide plate constituting the seedling storage device according to the first embodiment of the present invention are combined.
FIG. 6 is an end view showing a state in which a light emitter and a light guide plate constituting the seedling storage device according to the first embodiment of the present invention are combined.
FIG. 7 is a front view showing a state in which a light emitter and a light guide plate constituting a seedling storage device according to a second embodiment of the present invention are combined.
FIG. 8 is a perspective view showing a light emitter constituting the seedling storage device according to the second embodiment of the present invention.
FIG. 9 is a front view schematically showing a main part of a seedling storage device according to a third embodiment of the present invention.
FIG. 10 is a perspective view showing a conventional seedling raising apparatus.
[Explanation of symbols]
A ... Tray
10 ... Seedling storage device
10a ... Body cover
11 ... heat insulation light shielding plate
12 ... Sleeve
15 ... Cultivation case
16 ... Front wall
16a ... Air supply hole
17 ... rear wall
17a ... exhaust hole
20 ... Receiver
21 ... Storage case
23 ... Ventilation space
30 ... Heat exchange case
31 ... Air conditioning means
32 ... Blower
40 ... Side lighting device
40A ... Side illumination device
41 ... Light emitter
41a ... Luminescent site
41A ... luminous body
42. Outer casing
43 ... luminous tube
44 ... Reflector film
45 ... tip
46 ... Clamp
47 ... Mounting screw
51. Light guide plate
51a ... one side edge
51b ... Light irradiation surface
51A ... Light guide plate
51B ... Light guide plate
52 ... Transparent acrylic board
53 ... Surface light diffusion film
54 ... Light reflecting sheet
55 ... Light reflecting tape
56: Incident recess

Claims (3)

In a seedling storage device for curing or storing produced seedlings, a seedling storage device configured to irradiate light from the side of the seedlings in order to suppress the upward growth of the seedlings,
A light emitting body that extends in the longitudinal direction in the form of a tube or rod, reflects light transmitted from one end of the light source to the other end, and emits light from at least one radial direction over the entire length;
A light guide plate that is molded into a plate shape, diffuses light incident from one side edge thereof almost uniformly from at least one of the front and back surfaces, and irradiates the light to the outside;
Fixing the light emitting part side of the light emitter along one side edge of the light guide plate, and arranging the light irradiation surface of the light guide plate on the side of the tray in which seedlings are planted ,
A seedling storage device, wherein the light guide plate itself is provided with a support for supporting a tray on which seedlings are planted . In a seedling storage device for curing or storing produced seedlings, a seedling storage device that irradiates light from the side of the seedlings in order to suppress the upward growth of the seedlings,
A light emitting body that extends in the longitudinal direction in the form of a tube or rod, reflects light transmitted from one end of the light source to the other end, and irradiates in one direction from the other end;
A light guide plate that is molded into a plate shape, diffuses light incident from one end side thereof almost uniformly over the entire area of at least one of the front and back surfaces, and irradiates the outside.
At least one incident concave portion whose center is recessed inside the light guide plate is formed on at least one side edge of the light guide plate, and is fixed in a state where the other end of the light emitter is opposed to the incident concave portion. The light irradiation surface of the light plate is arranged on the side of the tray where the seedlings are planted ,
A seedling storage device, wherein the light guide plate itself is provided with a support for supporting a tray on which seedlings are planted . The light guide plate radiates light to the outside over the entire area of both the front and back surfaces,
Providing the receptacles on the front and back surfaces of the light guide plate,
The seedling storage device according to claim 1 or 2, wherein the tray is supported on the front and back sides of the light guide plate.

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