JP2019058110A - Plant raising illumination device - Google Patents

Abstract

To allow reflected light as supplementing light used for a fruit-bearing part of a plant to be evenly applied to the fruit-bearing part even if the plant grows up.SOLUTION: There is provided an illumination unit 30 in which a lighting device 31 which irradiates a fruit-bearing part 15 of a plant 10 with illumination light S from above and a reflection board 32 which irradiates reflected light R from below are unified so as to maintain a spacing H. The illumination unit 30 is arranged around the fruit-bearing part 15 of the plant 10 and made freely movable in a height direction and cable of being fixed at an arbitrary position by an elevation rope 33. By moving the illumination unit 30 upward corresponding to the growth of the plant 10 and fixing the unit at the fruit-bearing part 15 in a harvest period, supplementing light of the fruit-bearing part 15 is made even. Particularly, a light volume of reflected light to a lower part of a fruit 13 is made even.SELECTED DRAWING: Figure 2

Description

The present invention relates to a lighting device for growing plants, and more particularly to a lighting device capable of irradiating reflected light to fruits. In addition, in this application, a fruit means the fruit of fruit trees and fruit vegetables.

In artificial cultivation of plants and the like, it is known to use a lamp such as an LED to compensate light. Moreover, while adjusting the height according to the growth of a vine plant, there is also a thing which also raises the fixed point of a vine together (refer patent document 1).
Furthermore, it is also known to spread a reflection sheet (reflection material) on the ground and apply reflected light to the bottom of the fruit to promote coloring, in order to improve the coloring on the bottom of the fruit.

JP, 2013-19255, A

By the way, in the case of a plant that harvests fruit, by irradiating the fruit with a sufficient amount of light, aging is promoted so as to achieve sufficient coloring and maturity, and high quality is carried out. Supplemental illumination ensures a sufficient amount of light to be applied to the fruit.
In addition, for high-potency plants in which the fruit setting part sequentially moves upward with growth, a constant supplemental light quantity is secured for the fruit set by raising the illumination according to the growth of the plant.
In particular, it is known that, for paprika and the like that require a long time for ripening, supplemental illumination can effectively accelerate ripening.
Furthermore, the reflected light is applied to the fruit from below to improve coloring of the lower surface, etc., so that the whole is uniformly colored and matured to be of high quality, and the whole ripening rate is made uniform as well as the whole. It is also known to promote the ripening of
However, since the conventional reflection light fixes the reflection sheet on the ground, as the plant grows and the fruiting part moves upward, the fruiting part and the illumination also move away from the reflection sheet, so the reflection to the fruit is reflected. Light irradiation gradually decreased, and it was not possible to expect accelerated aging by reflected light.
Then, this application aims at ensuring uniform light quantity with respect to a fruiting part from the upper and lower sides even if a plant grows, and promoting whole uniform ripening.

A lighting device for irradiating light to the fruit (13) is arranged around the fruiting part (15) to the plant (10) having the stem (11) growing upward and the fruit (13) bearing fruit around the stem (11) In a plant-growing lighting apparatus in which the lighting apparatus can be moved upward according to the growth of the plant,
The lighting device comprises a reflector (32) for irradiating the fruit (13) with reflected light from below.
The reflector (32) is characterized in that it can move upward along the stem (11) and can be fixed at any height position.

Since the reflector (32) moves upward along the stem (11) according to the growth of the plant, and can be fixed at a predetermined position where the reflected light can be emitted from below to the fruit (13), the growth of the plant Even if the fruiting part (15) moves upward by this, the reflecting material (32) is moved upward following this, and at any position where reflected light such as external light becomes good with respect to the fruit (13) It can be fixed.
For this reason, the amount of light reflected from the fruit (13) can always be made constant, so even if the fruiting part (15) moves to a high position, the coloring in the lower part of the fruit (13) becomes good to promote the entire ripening. Can maintain high quality.

A perspective view of the first embodiment showing the plants in different harvest seasons side by side Sectional view of a lighting unit for illuminating the solid part in the first embodiment A perspective view of the lighting unit in the first embodiment A perspective view of a lighting unit according to a second embodiment The perspective view which shows the upper part of the illumination unit of 3rd Example from lower direction Perspective view of the fourth embodiment Top view of the clip in the fourth embodiment Perspective view of the fifth embodiment Perspective view of the sixth embodiment Diagram showing an example of use of the sixth embodiment Perspective view of the seventh embodiment The perspective view of the reflecting plate in the unfolded state of the eighth embodiment A sectional view taken along line 13-13 of FIG. 12 and a state of use thereof Sectional drawing in the state which attached the reflecting plate of 8th Example to a plant

Hereinafter, a lighting device for growing a plant according to an embodiment will be described based on the drawings.
FIGS. 1 to 3 relate to the first embodiment, and FIG. 1 shows three high-growth fruit plants (for example, paprika) which grow high upward, and which show three different growth stages. In the figure, A is the first harvest period, B is the second harvest period, and C is the third harvest period.

Each plant 10 has a stem 11 extending upward, and leaves 12 and fruits 13 formed around it. The stalk 11 is attracted along the pillars 20 which are vertically disposed long in the vertical direction. However, it may replace with the support | pillar 20 and may be the induction rope which hangs down from upper direction.
The support 20 is a long rod-like member or pipe-like long member and is erected substantially vertically between the ground 21 and a beam 23 disposed substantially horizontally downward of the roof 22 constituting the cultivation house. There is.
The height of the support 20 is adjusted to the growth limit height of the plant 10 and is, for example, about 3 to 5 m.

Although this example shows the example of house cultivation of a plant, it may be outdoor cultivation outside the house.
Moreover, although the plant 10 is planted directly on the ground 21, the roots may be put into a liquid tank for fertilization as artificial cultivation. In this case, the ground 21 is the floor of the house.

The plant 10 is configured such that the fruit set 15 sequentially moves upward according to the growth, and as shown in A, the fruit 10 is brought to fruition relatively near the ground 21 in the first harvest period. In the second harvest stage shown in B, the fruit set 15 is at a position higher than A, and in the third harvest stage of C, it becomes higher. The fruit 13 is sequentially moved to a relatively high position depending on the harvest time to produce fruit. In the present application, the fruit setting portion 15 refers to a predetermined range in which fruits that are fruit-bearing at the same time are concentrated in the height direction of the plant 10.

A lighting unit 30 is provided around the solid part 15. The lighting unit 30 constitutes a unit in which the upper lamp 31 and the lower reflector 32 are integrated. The lamp 31 is a light source unit of a light for supplementing illumination to be irradiated from above, and is formed of, for example, an LED.
The reflecting plate 32 is an example of a reflecting member, and may not necessarily be formed of a plate-like member, and may be, for example, a sheet.

The lighting unit 30 can be moved up and down according to the position of the fruiting part 15 by the elevating rope 33, fixed at the position of the fruiting part 15, and maintained at a predetermined height during the harvest period.
The lamp 31 is a light source unit of the light for supplementary light illumination from above, and is constituted of, for example, an LED, and is supplied with power by the electric wire 35 hanging down from the beam 23 together with the elevating rope 33.

The lamp 31 compensates for the external light L emitted to the plant 10 from above through the roof 22 or the like of the cultivation house, and directly irradiates the illumination light S to the fruiting part 15 from above. In addition, the irradiation direction from a light source is not constant, but irradiates to several fruit in various directions. The amount of light and the type (wavelength) of the light beam are appropriately adjusted.
Moreover, the lamp 31 is effective as an artificial illumination means for the plant 10 not only at the time of supplementing the external light L to the fruiting part 15 but also at night or when the light amount of cloudy sky is insufficient.

In the illumination unit 30 in this example, the lamp 31 and the reflecting plate 32 are disposed to sandwich the fruiting part 15 up and down, move upward with the fruiting part 15 according to the growth of the plant 10, and the position of the fruiting part 15 raised. Since the lamp 31 and the reflecting plate 32 which are always positioned around the fruiting part 15 and have a predetermined interval can always irradiate the fruit 13 efficiently from above and below, it can promote ripening. In particular, since the reflecting plate 32 is located below and near the solid part 15, the lower surface of the fruit 13 can be sufficiently irradiated with the reflected light.
In particular, even if the plant 10 grows, it is important to maintain the distance between the lamp 31 and the reflecting plate 32 within a predetermined range so that the fruit 13 can be irradiated with reflected light of a certain amount or more. This is realized by raising the growth rate of the plant 10 as the plant 10 grows.

The elevating ropes 33, together with the rope lock device 34, constitute height varying means of the lighting unit 30, and ascend from the lighting unit 30 to the rope lock device 34, where they are restrained or released by the rope lock device 34. The lifting rope 33 further U-turns from the rope lock device 34 and hangs downward, and the tip end is a free end. Of the elevating ropes 33, the lighting unit 30 to the rope lock device 34 is a hanging portion, and the rope lock device 34 to the free end form an operation portion 33a.

The height of the lighting unit 30 is adjusted by adjusting the hanging length of the lifting rope 33 by the rope lock device 34 (the length of the hanging portion from the rope lock device 34 to the lighting unit 30).
The rope lock device 34 is fixed to the beam 23, and the pull-out length of the lifting rope 33 on the side of the operation portion 33a can be adjusted.

When the operating portion 33a is pulled downward (in the direction indicated by the arrow b), the rope lock device 34 restraining the elevating rope 33 is unlocked and the elevating rope 33 is released, and the operating portion 33a can be pulled downward. The lighting unit 30 can be pulled upward (in the direction of the arrow a).

When the lighting unit 30 ascends to a predetermined position, the elevating rope 33 is restrained and locked in the rope lock device 34 by moving the operation portion 33a in the lateral direction (direction indicated by the arrow c), and the elevating rope 33 is in this position It can not move up and down. Thus, the lighting unit 30 is positioned and fixed at a predetermined position, and is maintained at this position until the next operation.
Thereafter, when the operating portion 33a is pulled downward again to release the lock, the amount of withdrawal of the operating portion 33a can be adjusted, and the height adjustment of the lighting unit 30 becomes possible.

In addition, such a rope lock device is well-known, for example, many things are known as a lock device with respect to the raising / lowering cord for blinds (as an example, there exists Unexamined-Japanese-Patent No. 61-179296).
However, the rope lock device 34 is not limited to this, and various arrangements are possible. For example, the rope lock device 34 is configured by an electric motor, and is wound up or down by electrical control to make the lighting unit 30 It may be fixed at a predetermined position.

Furthermore, the rope lock device 34 may be simply a pulley, and the operation portion 33a whose pull-out length is adjusted may be tied to the support 20. In this case, the rope lock device 34 can be omitted.

FIG. 2 is a cross-sectional view of the lighting unit 30 for irradiating the plant 10 (showing the lighting unit 30 of FIG. 1 in an enlarged manner), and FIG. 3 is a perspective view of the lighting unit 30 itself. In FIG. 2, the support 20 is omitted.
As shown in these figures, the lighting unit 30 has a unit structure in which a circular ring-shaped upper frame 36 and a reflecting plate 32 are integrated at a predetermined distance by a side frame 37 provided facing vertically. .

The upper frame 36 is made of an appropriate material such as a resin, and has a size that surrounds the periphery of the fruiting part 15 of the plant 10. The lower end of the diagonal rope 38 is tied at a predetermined circumferential direction interval (120 ° in this example), and the upper end of the diagonal rope 38 is tied to the connecting member 39a above the central portion of the upper frame 36.

As shown in the circle A in FIG. 3, a hook 39b attached to the lower end of the lifting rope 33 hanging down from above is engaged with the connecting member 39a, whereby the lighting unit 30 is fixed to the lower end of the lifting rope 33. Can be suspended to An electric wire 35 runs along the elevating rope 33, and the lower end of the electric wire 35 is connected to the lamp 31.

The upper end of the lamp suspending rope 31a is connected to the connecting member 39a, and the lamp 31 is supported by the lower end of the lamp suspending rope 31a. The lamp suspension rope 31a is disposed in the vertical direction along the extension of the lifting rope 33 at the central portion of the upper frame 36, and the lamp suspension 31 is suspended from the connecting member 39a by the lamp suspension rope 31a. Hangs down near the center inside the.

The height position of the lamp 31 can be adjusted according to the position of the fruiting part 15 of the plant 10 to be illuminated. Specifically, by adjusting the length of the lamp hanging rope 31a, the height of the lamp 31 can be freely changed, and can be arbitrarily adjusted so as to efficiently illuminate the fruit portion 15. That is, the height of the general position of the lighting unit 30 relative to the entire solid part 15 can be adjusted by the raising and lowering rope 33, and the height of the lamp 31 can be adjusted according to the position of each fruit 13 in the solid part 15 by the lamp hanging rope 31a. It can be adjusted. Further, as described later, the height position of the reflecting plate 32 can also be adjusted.

The electric wire 35 extends upward along the lamp suspension rope 31 a from the lamp 31 and is further wired upward along the elevating rope 33.
In addition, suspension of the lamp 31 can also be performed by the electric wire 35 itself by omitting the lamp hanging rope 31a. In this case, by adjusting the length of the wire 35, the height of the lamp 31 can be adjusted.

Also, the elevating rope 33 can be replaced by the electric wire 35. In this case, the heights of the lighting unit 30 and the lamp 31 are adjusted by connecting the upper end of each diagonal rope 38 to a portion above the lamp 31 of the wire 35 and changing the amount of suspension of the cable 35.

The connecting member 39a and the hook 39b are not essential, and the diagonal ropes 38 and the elevating ropes 33 may be directly linked, for example. In this case, for example, the lower portion of the lifting rope 33 may be branched into three branches, and the respective tip portions of the branched portions may be connected to the upper frame 36 by an appropriate method.

As shown in the circled portion B in FIG. 3, the upper portion of the side frame 37 passes upward through the upper and lower through holes 36 a provided in the upper frame 36, and here, for example, it is connected in a ball shape Downward removal is prevented and fixed by the retaining part 37a.
A plurality of side frames 37 are provided at equal intervals in the circumferential direction of the upper frame 36, and each upper end portion is connected to the upper frame 36.

In addition, connection of the upper end part of the side frame 37 and the upper frame 36 is not limited to this, but can be variously, for example, when the side frame 37 is rope-like, you may link with the upper frame 36 directly.
Alternatively, the side frame 37 and the oblique rope 38 can be formed continuously and integrally as the side frame 37 is an extension of the oblique rope 38.
The lower portion of the side frame 37 is connected to the reflecting plate 32 such that the distance between the lamp 31 and the reflecting plate 32 maintains a predetermined distance.

As shown in the circle C in FIG. 3, the lower part of the side frame 37 penetrates the vertical through-hole 32 a formed in the outer peripheral part of the reflection plate 32 and protrudes downward, and the stopper 37 b is provided here. Thus, the height of the reflecting plate 32 is positioned.

The stopper 37b has, for example, a through hole for passing the lower portion of the side frame 37, and integrally forms an elastic projection 37c in the vicinity of the lower opening thereof to allow the side frame 37 to be drawn downward. The elastic projection 37c is locked around the penetrating portion of the side frame 37, thereby making it impossible to pull out upward. However, such a stopper 37b is not limited to this example, but can be variously.
When the side frame 37 is in the shape of a rope, a knot may be formed at a portion of the side frame 37 which has come down from the reflecting plate 32 so that the reflecting plate 32 does not shift downward.

The lower end of each side frame 37 positions the reflecting plate 32 in the same manner. Thereby, the space | interval of the lamp 31 and the reflecting plate 32 turns into predetermined space | interval H (FIG. 2).
The height of the reflecting plate 32 is adjusted so that the ambient light L and the reflected light R of the illumination light S of the lamp 31 can be efficiently irradiated from below with respect to the solid part 15 with a sufficient light amount.

The reflection plate 32 reflects the external light L and the illumination light S of the lamp 31 and irradiates the reflected light R from below onto the fruit 13 to promote fruiting, and an appropriate material with high reflection efficiency is selected. ing.
For example, there is a resin plate which is smooth and has high reflectance. In particular, foamed resin such as expanded polystyrene is preferable because of its excellent weight reduction. Further, if higher reflectance is required, there is a metal foil such as aluminum foil covered with preferably light-weight plate material such as paper or resin, or an aluminum deposition member such as a mirror.

The reflection plate 32 in this example is formed of a foamed resin such as expanded polystyrene in a disk shape. However, the shape of the reflection plate 32 is not limited to a disk, and a polygon, an irregular irregular shape, or the like can be appropriately made according to the conditions of the solid portion 15 to which the reflected light is irradiated.
As shown in the circled part D of FIG. 3, a central hole 32 b for passing the stem 11 and a radial cut 32 c are formed at the center of the reflection plate 32. The cut 32c is cut in a predetermined length in the outer peripheral direction from the central hole 32b, for example, for passing the stem 11 and the leaf 12 when moving the lighting unit 30 from the state of A in FIG. 1 to the state of B And a plurality is provided.

When the reflecting plate 32 is made of a foamed resin material, when passing the stem 11 and the leaf 12, elastic deformation in the central hole 32b and the cut 32c is enabled. In addition, since the weight is extremely reduced, the entire lighting unit 30 is reduced in weight to facilitate suspension. The size of the central hole 32b and the number and length of the notches 32c can be set arbitrarily. Moreover, it is also possible to abbreviate | omit any one of the center hole 32b and the notch | incision 32c.

Next, the operation of the present embodiment will be described.
In FIG. 1, first, as shown at A, while fixing the stem 11 of the plant 10 to the support 20 and passing the support 20 through the central hole 32 b of the reflection plate 32 in advance, the lighting unit 30 is placed along the support 20 Lower the stem 11 of the plant 10 and leaves 12 through the central hole 32b and the notch 32c, and fix the lighting unit 30 around the fruiting part 15 of the plant 10 at a predetermined position of the fruiting part 15 in the first harvest period .

In this state, as shown also in FIG. 2, the direct illumination light S by the lamp 31 illuminates the leaves 12 and the fruit 13 of the fruiting part 15 from above, and the reflection light R by the reflection plate 32 hits from below. It is supposed to be.
Further, in addition to the illumination of the lamp 31, the outside light L also irradiates the solid part 15 from above, and is reflected by the reflection plate 32 to be the reflected light R and irradiates the solid part 15 from below.

That is, the lamp 31 compensates the illumination light S for the outside light L from above with respect to the solid part 15, and the reflection plate 32 also compensates for the illumination light S and the reflection light R reflected from the outside light L from below. It becomes light means.
At this time, since the distance H between the lamp 31 and the reflecting plate 32 is almost constant, and a sufficient amount of supplemental light by the supplementary light of the lamp 31 and the reflected light of the reflecting plate 32 is secured to the solid part 15, the solidification is achieved. The part 15 is efficiently promoted to mature. In addition, the lower part of the fruit 13 which tends to be delayed in ripening such as coloring is also well colored, and the ripening is uniformly promoted.

As described above, by setting the lighting unit 30 as a unit in which the lamp 31 and the reflecting plate 32 are integrated, the operation such as raising and lowering can be simplified. Further, by setting the lamp 31 and the reflecting plate 32 to the predetermined interval H, it is possible to always maintain the optimal light supplementing condition for the solid part 15 at the time of raising and lowering the illumination unit 30, and save the trouble of setting the interval each time. Can.

The interval H is set in advance so as to enable sufficient supplementary light to the solid part 15 by experience. However, it is possible to adjust the relative position of the lamp 31 and the reflecting plate 32 at one or both at the same time, and this makes it impossible to compensate the light at the initial interval H with respect to the specific individual solid part 15. In the fruiting part 15 which becomes sufficient, individual adjustment can be made so that the supplemental illumination to each fruit 13 is optimal. In addition, this individual adjustment can be similarly carried out at each harvest season such as B and C after A.

Next, when the first harvest period in A of FIG. 1 has passed, the fruit set 15 moves upward as shown in B of FIG. 1. Therefore, the lighting unit 30 is raised along the support 20 and arranged to surround the new solid part 15. Then, even in the new fruiting part 15 in the second harvest period, efficient ripening is promoted by the vertical light supplementation by the lighting unit 30.

At this time, as the lighting unit 30 is lifted, the reflecting plate 32 is also lifted, and the distance H with the lamp 31 is almost maintained, so that a sufficient amount of reflected light from below to the fruit 13 can be secured.
Therefore, when the reflective material is disposed on the ground as in the prior art, the reflected light from the lower side is not significantly reduced and the light is not insufficiently filled with the lower part of the fruit 13 as in the first harvest period. The lower part is also colored well and rapidly, and the whole is uniformly colored to be matured and high quality, and the whole uniform ripening is promoted.

Furthermore, when the second harvesting period in B of FIG. 1 is completed, the fruiting part 15 moves further upward shown in C of FIG. 1 and becomes the third harvesting period.
At this time as well, the illumination unit 30 can be raised together with the reflection plate 32 to a position surrounding the fruiting part 15 in the third harvest period to promote sufficient ripening.

Hereinafter, if the lighting unit 30 is moved upward as the fruit set 15 moves upward, it becomes possible to harvest high quality fruit 13 in a high yield and in a short time. Moreover, even if the fruiting part 15 moves upward and the harvest period changes, the degree and time of ripening in each harvest period can be maintained constant, so that the quality is stabilized over each harvest period, and the harvest is shortened. It will be possible.

Next, each embodiment as a variation will be described. In the following description, the same reference numerals are used for the parts common to the first embodiment, and the description of the duplicated parts will be omitted in principle.
FIG. 4 shows a second embodiment in which the fixing structure of the lamp 31 is changed. In FIG. 5, a support arm 40 protruding in the center direction from the upper frame 36 is provided, and a lamp 31 is provided on the approximate center of the upper frame 36 at the tip thereof. The respective relationships of the reflecting plate 32, the upper frame 36 and the side frame 37 are the same as in the first embodiment.

The illumination unit 30 is movably fixed in the vertical direction at an arbitrary position by fixing the reflecting plate 32 to the stem 11 as described later. Moreover, since the reflecting plate 32 can be moved in the vertical direction with respect to the stem 11, the lighting unit 30 is supported variably in the height direction while maintaining a constant distance between the lamp 31 and the reflecting plate 32 as a unit. Therefore, the hanging means of the lighting unit 30 can be omitted.

The electric wire 35 is wired along the support arm 40. Although illustration is omitted, the electric wire 35 extends upward from the outer peripheral portion of the upper frame 36. However, it can also be extended upward directly from the lamp 31 as in FIG. In this case, the electric wire 35 can be used as a hanging means of the lighting unit 30.
Also, the lamp 31 can be freely attached in the radial direction in the length direction of the support arm 40, or the lamp 31 can be attached to the support arm 40 so that the light irradiation angle can be adjusted. Good. In this way, the illumination light S of the lamp 31 can be optimally adjusted to the solid part 15 and irradiated.

FIG. 5 is a view showing the upper frame 36 in the third embodiment in which the arrangement of the lamps 31 is changed, from the lower side. In this example, a plurality of lamps 31 are arranged at predetermined intervals in the circumferential direction along the inner periphery of the upper frame 36 and the like. The number of lamps 31 is arbitrary. In this way, the periphery of the fruiting part 15 can be uniformly irradiated without being disturbed by the stem 11 and the like. At this time, the lamp 31 may be adjusted by being inclined at an arbitrary angle so that the irradiation angle faces the center of the upper frame 36. The second embodiment is the same as the second embodiment except for the arrangement of the lamps 31.

FIG. 6 shows a fourth embodiment in which a guide 50 dedicated to the lighting unit 30 is provided, along which the lighting unit 30 is moved up and down and fixed at an arbitrary position on the guide 50. The guide 50 is a round bar-like or pipe-like long member supported substantially vertically between the ground and a beam (see FIG. 1), guides the vertical movement of the lighting unit 30, and supports it at a predetermined height position It is a member to do.

The lighting unit 30 uses the one shown in FIG. However, it is free to use other types of lighting units (for example, one in which the lamp 31 is suspended from the upper frame 36 with a string or one including the lamp 31 as shown in FIG. 5).
In this example, clips 60 are provided on the outer periphery of the upper frame 36 and the reflection plate 32 in FIG. 4 and fixed to the guide 50.

The clip 60 is a substantially C-shaped member made of, for example, a spring material, and as shown in FIG. 7 showing the clip 60 enlarged and shown from the axial direction of the guide 50, the base 61 is outside the outer periphery of the upper frame 36. While being fixed by the connection part 62 which protruded in the direction of protrusion, it mutually curves and it comprises the holding part 63 which makes a front-end | tip a free end. The circular space 64 formed between the grips 63 is equal to or less than the outer diameter of the guide 50 (shown in cross section in FIG. 7).

In this manner, the free ends of the grips 63 are separated from each other by opening in the directions of arrows e and d and attached to the periphery of the guide 50, and are freely movable along the guide 50 in the height (length) direction When the grip portion 63 is closed at a predetermined position, the guide 50 is firmly gripped and can not move in the vertical direction, and the height position of the lighting unit 30 is determined.

Therefore, the hanging of the lighting unit 30 is also unnecessary, and any height adjustment along the guide 50 is possible. Note that the structure of the clip 60 is not limited to this example, and various modifications are possible.
Moreover, in this example, although the clip 60 is provided in both the upper frame 36 and the reflecting plate 32, either one (the reflecting plate 32 side is preferable) can also be abbreviate | omitted.

FIG. 8 shows a fifth embodiment which is a variation of FIG. 6, and shows an example in which the lighting apparatus is ununited. In this example, it corresponds to what abbreviate | omitted the side frame 37 which comprises the illumination unit 30 in FIG. 6, and the upper frame 36 and the reflecting plate 32 are attached to the guide 50 by the clip 60, respectively by arbitrary height. However, the distance between the lamp 31 and the reflecting plate 32 is adjusted to be about the predetermined distance H (FIG. 2).

By doing this, although the lamp 31 and the reflecting plate 32 can not be moved up and down integrally, and since the lamp 31 and the reflecting plate 32 can be fixed at an arbitrary position, the lamp 31 and the reflecting plate 32 can be The distance H can be changed optimally to always optimize the amount of light reflected by the reflecting plate 32 with respect to the solid portion 15.
In addition, although this non-unitization is based on the unit of FIG. 6, the upper frame 36 and the reflecting plate 32 which comprise another unit, such as FIG. 1, can also be used.

FIGS. 9 and 10 show a sixth embodiment in which the illumination device is ununited, the lamp is also omitted, and the reflecting plate 32 is used alone. The illumination device shown in FIG. 9 is an example in which only the reflection plate 32 is configured in the illumination unit 30 of FIG. 1, and the reflection plate 32 is directly fixed around the stem 11 and the support 20.

In this case, if the size of the central hole 32b is made smaller than the sum of the thicknesses of the stem 11 and the support 20, the stem 11 and the support 20 expand the periphery of the central hole 32b and elastically deform. The elastic force as a reaction force can be fixed at a predetermined position in the vertical direction of the stem 11 (and the support 20). Further, if the reflecting plate 32 is strongly pulled upward, the reflecting plate 32 can be moved upward by the deformation of the central hole 32b and the notches 32c, and can be fixed at an arbitrary position.

Therefore, the reflecting plate 32 can be sequentially moved to a position below the fruiting part 15 according to the growth of the plant 10, and if the height position is fixed again at the moving position (that is, the reflecting plate 32 upwards) The reflecting plate 32 is fixed at the position in the vertical direction at the position thereof, and reflected light such as external light L can be directed toward the fruit 13 from below, except for the force that has been pulled up.

Moreover, since the reflection plate 32 can be always moved to a predetermined position below the fruiting part 15 and fixed according to the growth of the plant 10, the light amount of the reflected light R to the fruiting part 15 can be made constant, The lower part of 13 is efficiently colored, and the whole is uniformly colored and matured to be of high quality, and the whole ripening is promoted, and high quality fruit 13 can be harvested in a short time.

In addition, the support | pillar 20 can be abbreviate | omitted and it is good also as a structure instead of the support | pillar 20 in this case, pulling up the plant 10 by a draw rope. Furthermore, the reflector 32 can be moved to an arbitrary position around the stem 11 and fixed directly by adjusting the central hole 32 b to an appropriate size.

Further, as shown in FIG. 10, even in the state where the plant 10 is branched into a plurality of branches, the reflecting plate 32 is individually attached to each branch 14 and reflected light from a predetermined position obliquely downward to each fruiting portion 15 It can also be adjusted so that R can be irradiated. Also in this case, the reflecting plate 32 can be moved corresponding to the change of the position of the solid part 15 for each branch 14.

In addition, the reflector 32 can be fixed in an arbitrarily inclined state with respect to the branch 14 only by appropriately inclining the axis direction of the branch 14 of the portion passing through the central hole 32 b.
Also in this case, the reflecting plate 32 can be moved corresponding to the change of the position of the solid part 15 for each branch 14. Therefore, it is possible to optimally irradiate the reflected light R to the fruit 13 of each branch 14 by appropriately inclining the reflection plate 32.

FIG. 11 shows a seventh embodiment in which a dedicated guide 50 is provided radially outward of the reflection plate 32 in FIG.
In this example, the fixing portion 70 of the guide 50 is provided on the outer peripheral portion of the reflection plate 32, and the fixing portion 70 enables vertical movement and fixing at an arbitrary position.
The fixing portion 70 is a hole 71 (hole diameter is smaller than the outer diameter of the guide 50) and a notch 72 similar to the central hole 32b and the notch 32c in the reflection plate 32 of FIG. The fixed portion 70 can be moved in height in the longitudinal direction of the guide 50 and fixed to the guide 50 at a predetermined position.

A central hole 32 b and a notch 32 c are provided at the central portion of the reflection plate 32, and can move up and down around the stem 11. The fixing portion 70 and the reflecting plate 32 have a flat plate-like integrated shape connected by the connecting portion 73. For example, the fixing portion 70 and the reflecting plate 32 are continuously formed integrally by cutting a plate material into this integrated shape. In this case, since the reflecting plate 32 and the fixing portion 70 can be formed simultaneously, the manufacture becomes easy.
Further, the fixing portion 70 is not limited to the one provided with the hole 71 and the notch 72, and various modifications are possible as long as the fixing portion 70 can be vertically moved and fixed at an arbitrary position. For example, separate ones such as rubber bands and rubber bands may be used. It may be like the clip of FIG.

12 to 14 show an eighth embodiment in which the reflecting plate 32 has a three-dimensional shape and an inclination angle is provided. In this example, the flat-plate-like spread reflector 32 (FIG. 12) is used in a substantially mortar-shaped three-dimensional shape (FIG. 14).
FIG. 12 shows the reflector 32 in the unfolded state. The reflection plate 32 in this state has a flat plate shape cut from a plate material, a central hole 32b is provided at the center, a cut 32c is provided radially from the central hole 32b, and a slit 32d reaching the outer periphery from the central hole 32b is provided. .
On the outer peripheral portion of the reflecting plate 32 sandwiching the slit 32d, a protrusion 32e is integrally provided on one side, and an engagement hole 32f on which the protrusion is engaged is provided on the other side. A plurality of engagement holes 32f are provided in the circumferential direction.

A of FIG. 13 shows the protrusion 32e and the engagement hole 32f along the line 13-13 in FIG.
B of FIG. 13 shows the engaged state of the projection 32e and the engagement hole 32f, closes the slit 32d, and when the edges 32g and 32h sandwiching the slit 32d overlap, the projection 32e engages with the engagement hole 32f. , Can be integrated.

FIG. 14 shows this state, in which the reflecting plate 32 has a lower central portion and a higher outer peripheral portion corresponding to the closed slit 32d, and has a substantially bowl-like three-dimensional shape and a concave surface opened upward with a substantially V-shaped cross section. It becomes. The inclination of the upper surface is θ with respect to the horizontal line h.
Therefore, the reflected light R of the external light L (or the light S or both lights) tilts in the direction of the stem 11. Therefore, when the fruit 13 is at a position close to the stem 11, the light amount of the reflected light R can be further increased.

In the engagement between the projection 32e and the engagement hole 32f, by selecting the engagement hole 32f, it is possible to change the overlapping amount of the edges 32g and 32h and thereby change the inclination of the reflection plate 32.
That is, the degree of overlapping of the edges 32g and 32h of the slit 32d can be changed, and the inclination can be made tighter as the overlapping becomes larger. The degree of inclination is adjusted in accordance with the condition of the fruit portion 15.

Also, the means for overlapping and joining the two edge portions 32g and 32h of the slit 32d is not limited to the direct engagement by the projection 32e and the engagement hole 32f, but various other methods are possible. Both edges 32g and 32h may be fixed by clips of separate members.

In addition, this application can be variously changed and changed, for example, the plant to which the lighting device of the present invention is applied is effective not only to those grown in a house including artificial cultivation but also to plants in outdoor cultivation. It is. Moreover, it is preferable to apply with respect to the fruit plant which colors the whole uniformly and it ripens. Fruit plants include fruits and vegetables as well as fruits. As such fruit and vegetables, not only paprika mentioned as an example but various things of high quality like tomato etc. are possible.

10: Plant, 11: Stem, 13: Fruit, 15: Fruiting part, 30: Lighting unit, 31: Lamp, 32: Reflector, 33: Lifting rope, 50: Guide, 60: Clip, 70: Fixing part, L : Outside light, S: Illumination light, R: Reflected light

Claims (6)

A lighting device (32) for emitting light to the periphery of the fruiting part (15) is arranged for the plant (10) having the stem (11) growing upward and the fruit (13) bearing fruit around it In a lighting device for growing a plant, wherein the lighting device can be moved upward in accordance with the growth of a plant,
The lighting device comprises a reflector (32) for irradiating the fruit (13) with reflected light from below.
A lighting device for growing a plant, characterized in that the reflector (32) is movable upward along the stem (11) and can be fixed at an arbitrary height position. The lighting device for growing plants according to claim 1, wherein the reflector (32) is made of a foamed resin. The reflector (32) is characterized in that a central hole (32b) or a slit (32c) or both is formed for passing stems (11) and leaves (12). The lighting device for plant cultivation of 2. A lamp (31) for irradiating the fruit (13) from above, the lamp (31) above the fruit (13) and the reflector (32) below the fruit (13) at a predetermined interval (H) The lighting device for growing a plant according to any one of claims 1 to 3, which is disposed to have the The lighting device for growing plants according to claim 4, wherein the lamp (31) and the reflector (32) are integrated into a unit. The lighting device for growing plants according to claim 4 or 5, wherein the relative position of the lamp (31) or the reflector (32) or both is variable.

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