JPH038733B2 - - Google Patents

Description

TECHNICAL FIELD The present invention relates to a plant cultivation device, and more particularly to a plant cultivation device that can effectively supply light and carbon dioxide-containing air to plants.

Conventional technology To grow plants effectively, appropriate nutrients,
They require light, carbon dioxide, heat, temperature, humidity, etc., but if you try to satisfy all of these requirements, they will not be able to coexist with humans. In addition, growing plants requires soil that will serve as the base for their growth, but in large cities, it is extremely difficult to obtain cultivation space, such as land, that will serve as the base for plant growth. Furthermore, it is not easy to obtain the sunlight necessary for plant growth.

Purpose The present invention was made in view of the above-mentioned circumstances, and in particular, it effectively provides cultivation space for plants while establishing a coexisting relationship with humans, and also effectively protects plants from sunlight and carbon dioxide gas. The purpose of this invention is to provide a plant cultivation device capable of supplying contained air.

Structure FIG. 1 is a front view for explaining one embodiment of the plant cultivation device according to the present invention, and in the figure, 10 is a plant cultivation shelf, and the plant cultivation shelf 10 is made up of a plurality of shelf boards 10.
₁ , 10 ₂ ... 10 _o , and pallets 20 ₁ , 20 ₂ ... 20 _n for plant cultivation are placed on each shelf board. Therefore, in the present invention, for example, assuming that lettuce is cultivated, one lettuce plant is cultivated for each pallet, and as the lettuce grows,
It is constructed so that pallets can be sequentially moved from an area with narrow shelf spacing to an area with wide shelf spacing. For example, if we assume that we are growing 12 lettuce plants as shown in the example,
Pallets 20 ₁ to 20 ₁₂ are pallets in which lettuce that has just sprouted is grown (hereinafter referred to as group A);
20 ₁₃ - 20 ₂₄ are pallets with slightly grown lettuce (hereinafter referred to as group B), 20 ₂₅ - 20 ₃₆ are pallets with lettuce that has further grown (hereinafter referred to as group C), 20 ₃₇
~20 ₄₈ indicates a pallet in which lettuce has grown near the harvest period (hereinafter referred to as group D), and as the plants grow, the pallet moves from the position of group A to the position of group B, from the position of group B to the position of group C, Furthermore, it is configured so that it can be moved from the position of the C group to the position of the D group. In other words, plants require more space as they grow; in other words, they do not require much space when they are not growing. Space can be used more effectively by narrowing the shelf spacing for plants (plants) and widening the shelf spacing as the plants grow larger, that is, as they grow into groups B, C, and D.
Therefore, when cultivating plants on shelves as described above, sunlight is blocked by the shelves and insufficient sunlight reaches the pallets on the lower shelves, especially in large cities. It is difficult to install a shelf like the one mentioned above in a place exposed to sunlight, so if the shelf for growing plants like the one mentioned above can be used in a shady place or even in a basement, the value of its use can be further increased. can. In Figure 1, 3
Reference numeral 0 denotes an optical fiber provided in response to such a request, and is configured such that sunlight collected by a sunlight collecting device (not shown) is introduced into the optical fiber and transmitted. Each optical fiber is provided with a light leakage part 31, and the structure is such that the sunlight emitted from the light leakage part is irradiated to the plants in each pallet. Plants do not require that much light, but as they grow from group B, group C, and group D, they require more sunlight and a larger irradiated area. In order to meet such demands, in the present invention, the number of light leakage parts 31 for each pallet is increased as the plant grows larger, and the light leakage parts are distributed and arranged to increase the area. I'm trying to irradiate it. In addition, 40
is a reflecting plate, and if the reflecting plate is provided corresponding to each pallet as shown in the figure, the light emitted upward from the light leakage part 31 will be reflected by the reflecting plate and irradiated to the plants. Therefore, the light emitted from the light leakage portion can be used more effectively.
In addition, for effective plant growth, approximately 3%
It requires a high concentration of carbon dioxide gas, a temperature of about 25 to 28 degrees Celsius, and a humidity of about 70%. In order to establish a coexisting relationship with the above, the entire plant cultivation shelf configured as described above is housed in a sealed container, and high temperature, high humidity air containing high concentration of carbon dioxide gas as described above is supplied into the container. It is a good idea to do so. Therefore, in order to promote plant growth, it is more effective to allow photosynthesis to occur discontinuously, and for this purpose it is better to turn on and off the light source at predetermined intervals. , in that case, if sunlight is used as the light source,
Since it is not possible to blink the light introduced into the optical fiber, in that case, it is necessary to prepare two or more closed-type plant cultivation devices as described above, or to combine the closed container with the It is preferable that the optical fiber is divided into two parts, and the light introduced into the optical fiber between these parts is switched alternately at a predetermined time interval so as to blink. Note that it is possible to introduce light from an artificial light source into the optical fiber, and it is easy to understand that in that case, the artificial light source may be made to blink. Also, of course, when moving the pallets, it is necessary to open and close the sealed container, and the high temperature, high humidity air containing carbon dioxide gas inside must be removed. When the pallet is divided into two parts, the pallet movement work for the part and the movement work for the pallet for the part are performed separately.For example, when moving the pallet for the part, When the light goes out in the part, the high-temperature, high-humidity air in the part is moved to the part, and then the movement of air between the part and the part is blocked, and the movement of the pallet in the part is stopped. To do this, when the light goes out in the section, move the high-temperature, high-humidity air in the section to the section, and then
It is preferable to perform the pallet movement work by blocking the movement of air between these parts. In addition, if the airtight container is not divided into two parts, at least one or more plant cultivation devices should be installed to move high-temperature, high-humidity air between them. It is a good idea to move.

Fig. 2 is a plan view showing an example of irradiating light onto plants P on a pallet; Fig. a is an example of irradiating light onto plants on a pallet in group A; Fig. b is a plan view showing an example of irradiating light on plants P on a pallet; , c shows an example of irradiating light to plants of group C. For example, as shown in the figure,
For plants in a group, the number of light leakage parts 31 is reduced (four in the illustrated example) to reduce the amount of light irradiated, and these light leakage parts are brought close together to irradiate light only to the vicinity of the plants. As the plants grow in groups B and C, the number of light leakage parts is increased, and these light leakage parts are distributed according to the size of the plants to illuminate a wider area. . In this way, the sunlight collected by the sunlight collecting device (not shown) can be used more effectively, and the plant cultivation shelf configured as described above can be placed in a shady place, basement, etc. Since sunlight can be supplied even when the solar panel is installed, there are few restrictions on installation location, etc., and it is particularly suitable for large cities.

Various proposals have already been made regarding the solar light collecting device and the light leakage part in this application, but if necessary, for example, Japanese Patent Application No. 1983-
Please refer to No. 87277, Japanese Patent Application No. 109108, etc.

Effects As is clear from the above explanation, according to the present invention, plants can be cultivated efficiently by using space and sunlight most effectively.

[Brief explanation of the drawing]

FIG. 1 is a front view for explaining one embodiment of a plant cultivation apparatus according to the present invention, and FIGS. 2 a to 2 c are plan views showing the relationship between a pallet and a light source, respectively. _DESCRIPTION OF SYMBOLS 10...Plant cultivation device, _101-10o ...Shelf board, _201-20n ... _Pallet , 30...Optical fiber, 31...Light leakage part, 40...Reflection plate.

Claims (1)

[Claims] 1 Consists of a sealed container containing a plurality of shelves and a number of light sources, a plant cultivation pallet is placed on each shelf, and the plants in each pallet are irradiated with light from the light source to cultivate the plants. In the plant cultivation device, air containing a high concentration of carbon dioxide gas and a suitable temperature and humidity is supplied to the airtight container, and the light source emits light propagated within the optical fiber to the outside of the optical fiber. It has a light leakage part for
The light leakage portion is provided corresponding to the plants in the pallet, and the intervals between the shelves are gradually widened so that as the plants grow, the pallet can be transferred from a shelf with a narrower interval to a shelf with a wider interval. and is arranged so that as the interval between the shelves increases, the number of light leakage parts increases and the irradiation area becomes wider, and the device has two sealed containers or the sealed container is divided into two rooms. A plant cultivation device characterized in that the air at a suitable temperature and humidity containing the high concentration of carbon dioxide gas can be moved and shut off between these two containers or rooms.