JPH11155401A - Water culture apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the giving of sufficient nutritional liquid and light to a plant in a room, the improvement of workability and the culturing of plant as much as possible in a specified space. SOLUTION: One unit of culture panel body 1 comprises the following panels: a seedling bed panel 2 in which there are a number of through holes 3, a plant A is planted in a hole 3 from the front surface, and roots B of the plant A protrude from the back surface; and a raising panel 5 which is placed near the back surface of the seedling bed panel 2, whose front surface can be touched with the roots B, and thus works as a nutritious liquid passing tank 6, and at the same time whose back surface, a lump light source 7 is placed on. In the objective water culture apparatus, many units of culture panel bodies 1 are arranged parallelly in a room facing to each other in a state where a lamp light source 7 placed on the back surface of a raising panel 5 can radiate over the plants on a next seedling bed panel 2, and the space between a pair of culture panel bodies 1 which are next to each other can be freely adjusted. The culture panel bodies 1 are tilted; a moisture-absorbing member 8 of urethane or the like is placed in the nutritious liquid passing tank 6; a supporting member of urethane or the like is wound from the stem to the roots B of the plant A which is planted through a hole 3; and the surface of the nutritious liquid passing tank 6 is made in wave shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus used for hydroponic cultivation of plants indoors.

[0002]

2. Description of the Related Art Some plants such as vegetables and flowers are cultivated indoors in hydroponics. As is well known, hydroponic cultivation indoors allows plants to be grown without being affected by natural weather, temperature, humidity, etc., and is safe because it is free from pests and therefore does not require pesticides. Yes, it is widely accepted as being extremely effective in that it can be performed without hassle, including management, regardless of the season.

[0003] However, of course, it is necessary to adjust the temperature, humidity, air distribution and the like in the room, and attention must be paid to the distribution of nutrient solution and its component management. It is also essential to ensure the management of the light source.

Therefore, various proposals have conventionally been made to meet the above-mentioned requirements.
In the invention of Japanese Patent No. 2820225, including the description of the conventional example, two panels for planting plants on the surface are assembled in a mountain shape, and a sprinkler for spraying a nutrient solution is arranged in the mountain shape having protruding roots. A configuration in which a light source is installed above a plurality of sets of angled panels is disclosed.

[0005]

However, in this prior art invention, a large space is required in the room because the panels are assembled in a mountain shape, and the nutrient solution is sprayed by a sprinkler. There were regrets that were not supplied adequately and on average.

[0006] Further, since the light source is installed above a plurality of sets of mountain-shaped panels, the irradiation conditions of the light source are significantly different between the upper plant and the lower plant of the panel, so that the average growth of plants cannot be expected. There are also problems.

In consideration of this point, Japanese Patent Application Laid-Open No. 8-33199
As in the invention disclosed in Japanese Patent Application Publication No. 1 (1993), some efforts have been made to change the inclination accuracy of the panel stepwise, but the point that the irradiation conditions by the light source are different has hardly been solved.

[0008] Alternatively, as in the invention disclosed in Japanese Patent Application Laid-Open No. 63-240731, a means has been proposed in which a light source is disposed above a culture tank having a horizontal posture, and the position of the light source is adjusted as the plants grow.

This configuration is effective in that the irradiation conditions can be made uniform. However, since the culture tank is in a horizontal position, a plurality of multi-stage configurations must be used to perform many cultivations indoors. As a result, there remains a problem that many operations including collection of plants in the upper culture tank become extremely difficult.

The present invention has been developed in order to solve the above-mentioned dissatisfaction points of the prior art, and while improving the working efficiency while providing sufficient nutrient solution and light to a plant indoors, it is possible to improve the working efficiency and improve the efficiency in a certain space. The purpose is to allow as many plant cultivations as possible.

[0011]

In order to solve the above-mentioned problems, a hydroponic cultivation apparatus according to the present invention is provided with a nursery bed in which a number of holes are drilled, and the roots of plants that are planted and inserted from the surface to the holes project from the back surface. A cultivation panel body comprising a panel and a rear panel provided with a lamp light source on the rear surface and a rear surface arranged in close proximity to the rear surface of the nursery panel as a nutrient solution distribution tank to which plant roots can contact. A large number of the cultivation panels are arranged in parallel in the room, with the lamp light source on the rear surface of the rearing panel facing the plants on the surface of the adjacent nursery panel, and the interval between the adjacent cultivation panels can be freely adjusted. .

Therefore, the plant roots planted on the surface of the nursery panel and protruding from the back surface can always contact the nutrient solution distribution tank of the growing panel to absorb nutrients. The cultivation panel of the adjacent cultivation panel is irradiated with the lamp light source on the back surface of the cultivation panel on average, and can be grown.

When the plant portion on the surface of the nursery panel grows and grows, the interval between adjacent cultivation panels can be freely adjusted so that the tip does not contact the lamp light source.

In this case, by arranging a large number of the cultivation panel bodies in an inclined posture and arranging them in parallel in the room, the occupied space can be minimized, and by moving each cultivation panel body, the worker can be moved. However, it is possible to perform management including taking of each plant within the reach of the hand.

Further, if a moisture absorbing member such as urethane is laid in the nutrient solution circulation tank, the nutrient solution can be retained to a certain extent in the nutrient solution circulation tank, so that the supply of nutrients to the roots of the plant is reliably achieved. Is done.

Furthermore, if a holding member such as urethane is wound around the stem and root of a plant that is planted and inserted into the hole,
The root can be reliably positioned in the nutrient solution circulation tank while holding the root portion that is not self-supporting due to bending, and since the nutrient solution permeates the holding member such as urethane, the nutrient can be reliably absorbed.

If the surface of the nutrient solution circulating tank is corrugated, the roots extend into the valleys of the corrugated sheet even if the roots grow as they grow, so that they do not hinder the growth.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION In the hydroponic cultivation apparatus of the present invention, a large number of cultivation panel bodies 1 each having a nursery panel 2 and a breeding panel 5 arranged close to the back surface of the nursery panel 2 as one unit. Are arranged in a room in parallel.

A large number of holes 3 are formed in the nursery bed panel 2. Plants A are planted and inserted into the holes 3 from the surface thereof, and their roots B are formed.
Are projected from the back surface, and a frame 4 is fitted at least at the upper end and the lower end.
It can be freely slid to the side.

The growing panel 5 has a structure in which a nutrient solution circulation tank 6 is provided on the front surface and a lamp light source 7 is disposed on the back surface. The surface of the nutrient solution circulation tank 6 is corrugated, and a moisture absorbing member such as urethane is provided inside. The frame 4 is fitted at the upper end and the lower end, and a nutrient solution supply pipe is provided at one end and a nutrient solution discharge pipe is provided at the other end (both are not shown), and the nutrient solution flows. The nutrient solution is appropriately purified, the composition, concentration, pH, liquid temperature, etc. are adjusted, respectively, and added and circulated.

However, depending on the condition of use, the nutrient solution distribution tank 6
The surface of may be a simple flat plate shape, and the laying of the moisture absorbing member 8 such as urethane can be selected according to the type of the plant A and the use condition. It should be noted that a long fluorescent lamp is sufficient as the lamp light source 7, and the lamp light source 7 is appropriately arranged in an array form. However, the fluorescent lamp is not limited to the fluorescent lamp as long as the growth of the plant A is ensured.

The nursery panel 2 and the breeding panel 5 may be fixed to each other at an interval enough to allow sufficient air flow and allow the root B of the plant A to come into contact with the nutrient solution circulation tank 6.
The intervals may be increased as the roots B grow. Depending on the type of the plant A, if the root B is long and easy to grow, the mutual interval may need to be adjusted. However, if the surface of the nutrient solution circulation tank 6 is corrugated, the elongated root B is Because it advances into the valley of this corrugated sheet, there is no hindrance to its growth.

The cultivation panel body 1 having the above-described structure of the seedbed panel 2 and the breeding panel 5 as one unit has a large number of inclined panels as shown in FIG.
The lamp light sources 7 on the back surface are arranged in parallel so as to face each other so as to be able to irradiate the leaves C of the plant A on the surface of the nursery panel 2 of the adjacent cultivation panel body 1.

In the plant A, the root B absorbs nutrients in the nutrient solution circulation tank 6 and the leaf C is illuminated by the lamp light source 7 to grow smoothly by photosynthesis. grow up. It is desirable that the leaves C be close to the lamp light source 7 so that the irradiation by the lamp light source 7 can be uniformly received and that the light can be used as effectively as possible. If there is, there is a risk of being damaged by the influence of the heat.

Therefore, the growth of the leaf C is constantly monitored,
The interval between the adjacent cultivation panel bodies 1 can be freely adjusted so that the leaf C and the lamp light source 7 can maintain the most desirable interval. As a specific means for that purpose, for example, as shown in the illustrated embodiment, rails 9 are provided above and below in a direction orthogonal to the cultivation panel body 1 and wheels 10 running on the rails 9 are mounted on the respective frames 4. What is necessary is just to make each cultivation panel body 1 movable.

As described above, by arranging a plurality of cultivation panel bodies 1 in parallel in an inclined posture, a large number of cultivation panel bodies 1 can be efficiently arranged in a limited indoor space. In particular, the inclination posture of the nutrient solution circulation tank 6 is a problem due to the inclination posture.

That is, if the nutrient solution circulation tank 6 is inclined and the nutrient solution supply pipe is provided at the upper end and the nutrient solution discharge pipe is provided at the lower end to circulate the nutrient solution, the flow of the nutrient solution is quick and the plant A
It is feared that the root B may not be able to reliably absorb nutrients by contacting the nutrient solution flowing tank 6.

However, as a result of various trials and errors by the present applicant, the root B can be brought into contact with the nutrient solution flowing tank 6 as long as the inclination angle is not nearly vertical and steep. The nutrient solution was able to stay to some extent by laying a moisture-absorbing member 8 such as urethane in the inside.

The holding member 11 made of urethane or the like is wound from the stem of the plant A to the root B, which is planted and inserted into the hole 3 of the nursery panel 2, so that the plant A maintains its self-standing posture in the hole 3. At the same time, the bent portion of the root B can be held and positioned in the nutrient solution circulation tank 6, and the nutrient solution can be impregnated into the holding member 11.
Reliable absorption of nutrients can be achieved.

As shown by arrows in FIG. 2, the nursery panel 2 is slid in the upper and lower frames 4 to
It can be moved to the side, so that harvesting of the plant A and planting of seedlings can be easily performed.

Also, especially in the nutrient solution circulation tank 6, algae are liable to be generated with the passage of time, and a part of the leaves C and the roots B are likely to fall and microorganisms are likely to adhere. Therefore, it is necessary to clean the inside of the nutrient solution circulating tank 6 mainly when the nursery panel 2 is removed. However, in the present invention, the surface of the nutrient solution circulating tank 6 has a flat plate shape or a corrugated plate shape. If it is laid, it can be removed and algae and microorganisms can be easily washed off simply by pouring hot water from above. Particularly with hot water, sanitary management by hot water disinfection is easy. In these cases, separate pipes for supplying and discharging hot water and the like may be provided at the upper and lower ends of the nutrient solution circulation tank 6.

[0032]

The hydroponic cultivation apparatus according to the present invention has the above-described configuration, so that a large number of plants can be hygienically cultivated in a limited space, indoors, for a short period of time regardless of the season. And many other advantageous effects such as easy management.

[Brief description of the drawings]

FIG. 1 is a side longitudinal sectional view of a hydroponic cultivation apparatus according to the present invention.

FIG. 2 is a cross-sectional view of a cultivation panel body.

FIG. 3 is an enlarged sectional view of a main part.

[Explanation of symbols]

1; cultivation panel body, 2; nursery panel, 3; hole, 4; framework, 5; growth panel, 6; nutrient solution circulation tank, 7; lamp light source, 8; moisture absorbing member, 9; rail, 10; Holding members, A; plants, B; roots, C; leaves.

Claims (5)

[Claims] 1. A nursery panel (2) having a plurality of holes (3) formed therein, the root (B) of a plant (A) being planted and inserted through the holes (3) from the front surface, and projecting from the back surface. The root (B) is a surface arranged close to the back surface of the nursery panel (2).
And a growing panel (5) having a lamp light source (7) on the back surface and a growing panel body (1) as one unit. ) The lamp light source (7) on the back side faces the plant (A) on the surface of the adjacent nursery panel (2) in a form capable of irradiating the plant (A) on the surface, and is arranged in a room in parallel, and the adjacent cultivation panel body (1) A hydroponic cultivation device with adjustable spacing. 2. The hydroponic cultivation apparatus according to claim 1, wherein the cultivation panel body (1) has an inclined posture. 3. The hydroponic cultivation apparatus according to claim 1, wherein a moisture absorbing member (8) such as urethane is laid in the nutrient solution flowing tank (6). 4. A holding member (1) made of urethane or the like extending from the stem of the plant (A) to the root (B), which is planted and inserted into the hole (3).
4. The hydroponic cultivation device according to claim 1, wherein 1) is wound. 5. The hydroponic cultivation apparatus according to claim 1, wherein the surface of the nutrient solution circulating tank is corrugated.