JP2013099262A - Hydroponic device - Google Patents

Hydroponic device Download PDF

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JP2013099262A
JP2013099262A JP2011244070A JP2011244070A JP2013099262A JP 2013099262 A JP2013099262 A JP 2013099262A JP 2011244070 A JP2011244070 A JP 2011244070A JP 2011244070 A JP2011244070 A JP 2011244070A JP 2013099262 A JP2013099262 A JP 2013099262A
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container
nutrient solution
containers
cultivation
stage
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Eishiro Sakatani
英志郎 坂谷
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TOKUJU KOGYO Co Ltd
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TOKUJU KOGYO Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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Abstract

PROBLEM TO BE SOLVED: To provide a hydroponic device installed with cultivation containers in a multistage form, and allowing to lessen the water supply amount per time with a pump while securing a necessary water amount to supply to each cultivation container.SOLUTION: This hydroponic device arranged with cultivation containers 3 in a vertical multistage form includes using for each of the cultivation containers 3, two kinds of a mountain fold-like container 31 inclined downward only by a small angle from a length direction central part to each end part, and a valley fold-like container 32 inclined downward only by a small angle in a length direction from each end part to a central part, and arranging sequentially alternatively the mountain fold-like containers 31 and the valley fold-like containers 32 in a multistage form. Furthermore, the device includes supplying nutritious liquid in a nutritious liquid tank 20 to the highest position of the highest stage container with a nutritious liquid circulating device 2, letting nutritious liquid naturally flow from the lowest position of the upper stage container to the highest position of the lower stage container in the containers of each stage vertically adjacent to each other, and letting nutritious liquid naturally flow from the lowest position of the lowest stage container into the nutritious liquid tank so as to circulate nutritious liquid between the nutritious liquid tank and each of the cultivation containers.

Description

本願発明は、栽培室内において植物を水耕栽培により育成するための水耕栽培装置に関するものである。   The present invention relates to a hydroponic cultivation apparatus for growing a plant by hydroponic cultivation in a cultivation room.

栽培室内で効率よく水耕栽培するには、植物を植栽する栽培容器を上下に所定間隔をもって多段状に配置して行うことが有効である。   In order to efficiently perform hydroponics in the cultivation room, it is effective to arrange the cultivation containers for planting the plants in a multi-stage shape with a predetermined interval in the vertical direction.

ところで、本件出願人は、この種の多段式の水耕栽培装置として、特開２００９−３４０６４号公報（特許文献１）に示されるものを既に特許出願している。この既出願の水耕栽培装置は、養液が貯留される栽培容器を上下に所定間隔をもって多段状に配置する一方、養液タンク内の養液を養液循環装置により養液タンクと各栽培容器の間で循環させるようにしている。   By the way, the present applicant has already filed a patent application for this type of multi-stage hydroponic cultivation apparatus disclosed in Japanese Patent Application Laid-Open No. 2009-34064 (Patent Document 1). The hydroponic cultivation apparatus of the already-applied application arranges the cultivation containers in which the nutrient solution is stored up and down in a multi-stage shape with a predetermined interval, while the nutrient solution in the nutrient solution tank is fed to the nutrient solution tank and each cultivation by the nutrient solution circulation device. Circulate between containers.

図７は、上記既出願（特許文献１）の水耕栽培装置の各栽培容器３，３・・部分及び養液循環装置２部分を模式的に表したものである。そして、この図７の水耕栽培装置では、４段の栽培容器３，３・・が上下に所定間隔をもって配置されている一方、各栽培容器３，３・・に養液タンク２０内の養液を供給するが、この養液は、養液循環装置２により各栽培容器３，３・・と養液タンク２０との間で循環される。即ち、養液タンク２０内に貯留されている養液は、ポンプ２１により供給管２２を通して送り出し、該供給管２２から各栽培容器３，３・・内の一端部３ａに各分岐管２２ａ，２２ａ・・を介して養液を供給（分流）する一方、各栽培容器３，３・・の他端部３ｂからそれぞれ合流管２３ａを介して養液を還流管２３に戻し、該還流管２３を通して養液タンク２０に戻すようになっている。尚、各分岐管２２ａ，２２ａ・・には、それぞれバルブ２９が設けられていて、該各バルブ２９を調整することにより、各栽培容器３，３・・内に養液をそれぞれ均等に供給するようにしている。   FIG. 7 schematically shows each of the cultivation containers 3, 3... And the nutrient solution circulation device 2 of the hydroponic cultivation apparatus of the above-mentioned application (Patent Document 1). In the hydroponic cultivation apparatus of FIG. 7, the four-stage cultivation containers 3, 3,... Are arranged vertically with a predetermined interval, while the cultivation containers 3, 3,. Although the liquid is supplied, the nutrient solution is circulated between the cultivation containers 3, 3, and the nutrient solution tank 20 by the nutrient solution circulation device 2. That is, the nutrient solution stored in the nutrient solution tank 20 is sent out through the supply pipe 22 by the pump 21, and the branch pipes 22a, 22a are supplied from the supply pipe 22 to the one end portion 3a of each of the cultivation containers 3, 3,. The nutrient solution is supplied (divided) through each other, while the nutrient solution is returned to the reflux tube 23 from the other end 3b of each cultivation container 3, 3,. It returns to the nutrient solution tank 20. Each branch pipe 22a, 22a,... Is provided with a valve 29. By adjusting each valve 29, the nutrient solution is evenly supplied to each cultivation container 3, 3,. I am doing so.

ところで、各栽培容器３，３・・内の養液は、それぞれ所定水位（例えば５〜１０mm深さ）に維持させておく必要があるとともに、栄養分の補給（及び腐敗防止）のために循環させる必要がある。そして、図７の水耕栽培装置では、各栽培容器３，３・・に対してそれぞれ各分岐管２２ａから個別に養液を供給するとともに、各栽培容器３，３・・内の養液をそれぞれ合流管２３ａを介して還流管２３に還流させるようにしている。   By the way, it is necessary to maintain the nutrient solution in each cultivation container 3, 3,... At a predetermined water level (for example, 5 to 10 mm depth), and to circulate it for supplementing nutrients (and preventing spoilage). There is a need. And in the hydroponic cultivation apparatus of FIG. 7, while supplying a nutrient solution individually from each branch pipe 22a with respect to each cultivation container 3,3 ..., the nutrient solution in each cultivation container 3,3 ... is used. Each of them is refluxed to the reflux pipe 23 through the junction pipe 23a.

因に、図７の水耕栽培装置のもので、各栽培容器３，３・・にそれぞれ時間当たり所定水量（例えば６リットル／分）の養液を供給する場合には、ポンプ２１の能力として、１つの栽培容器３に対する時間当たりの供給水量（例えば６リットル／分）×４段の合計水量（２４リットル／分）の供給能力が必要となる。   Incidentally, in the case of the hydroponic cultivation apparatus of FIG. 7, when supplying a predetermined amount of water per hour (for example, 6 liters / minute) to each of the cultivation containers 3, 3. The supply capacity of the amount of supplied water per hour (for example, 6 liters / minute) × the total amount of water (24 liters / minute) for one cultivation container 3 is required.

特開２００９−３４０６４号公報JP 2009-34064 A

ところで、図７に示す公知の水耕栽培装置のように、多段状に配置した各栽培容器３，３・・に対してそれぞれ分岐管２２ａから個別に養液を供給するようにしたものでは、上記のように各栽培容器３，３・・の各必要水量（例えば６リットル／分）の４倍の水量（合計２４リットル／分）を同時に供給する必要があるので、供給能力の高いポンプ２１を使用する必要がある。   By the way, like the well-known hydroponic cultivation apparatus shown in FIG. 7, the nutrient solution is individually supplied from the branch pipe 22 a to each of the cultivation containers 3, 3. As described above, it is necessary to simultaneously supply four times the amount of water (for example, 6 liters / minute) required for each cultivation container 3, 3,. Need to use.

ところが、このように高能力のポンプ２１を使用すると、ポンプ自体のコストが高くなるなるとともに、常時高出力（例えば２４リットル／分）で運転する必要があるので、運転コスト（電気代）が高くなるという問題がある。   However, when the high-capacity pump 21 is used in this way, the cost of the pump itself increases, and since it is necessary to always operate at a high output (for example, 24 liters / minute), the operation cost (electricity cost) is high. There is a problem of becoming.

又、図７の水耕栽培装置のように、栽培容器３の一端部（右端部）３ａから養液を供給する一方、栽培容器３の他端部（左端部）３ｂから養液を排出（還流）させるようにしたものでは、配管長さ（図示例では還流管２３の長さ）が長くなって管材料コストが高くつくとともに、各分岐管２２ａ，２２ａ・・にそれぞれバルブ２９，２９・・が必要であることからバルブコストも高くつくという問題もあった。   Moreover, like the hydroponic cultivation apparatus of FIG. 7, while supplying a nutrient solution from the one end part (right end part) 3a of the cultivation container 3, a nutrient solution is discharged | emitted from the other end part (left end part) 3b of the cultivation container 3 ( The pipe length (in the illustrated example, the length of the reflux pipe 23) becomes longer, and the cost of the pipe material increases, and the branch pipes 22a, 22a,. There was also a problem that the valve cost was high because of the necessity.

そこで、本願発明は、栽培容器を多段式に設置した水耕栽培装置において、各栽培容器に供給する必要水量（必要養液量）を確保しつつポンプによる時間当たりの供給水量を少なくし得るようにするとともに、各コスト面でも安価にできるようにすることを目的としてなされたものである。   Then, this invention seems to be able to reduce the amount of water supplied per hour by the pump while securing the necessary amount of water (required nutrient solution amount) to be supplied to each cultivation container in the hydroponic cultivation apparatus in which the cultivation containers are installed in a multistage manner. In addition, it was made for the purpose of making each cost low.

本願発明は、上記課題を解決するための手段として次の構成を有している。   The present invention has the following configuration as means for solving the above problems.

［本願請求項１の発明］
本願請求項１の発明は、添付の図１〜図５（請求項１と請求項２に対応する）及び図６（請求項１のみに対応する）に例示するように、養液が貯留される細長形状の栽培容器３を上下に所定間隔をもって多段状に配置する一方、養液タンク２０内の養液を養液循環装置２により養液タンク２０と各栽培容器３，３・・の間で循環させるようにした水耕栽培装置を対象としている。 [Invention of Claim 1 of the Present Application]
In the invention of claim 1 of the present application, as shown in the attached FIGS. 1 to 5 (corresponding to claims 1 and 2) and FIG. 6 (corresponding only to claim 1), the nutrient solution is stored. The elongated cultivation containers 3 are arranged in multiple stages at predetermined intervals in the vertical direction, while the nutrient solution in the nutrient solution tank 20 is placed between the nutrient solution tank 20 and each of the cultivation containers 3, 3,. It is intended for hydroponic cultivation equipment that is made to circulate.

上記各栽培容器３，３・・は、長さ方向の中央部３１ａから各端部３１ｂ，３１ｂに向けてそれぞれ若干角度だけ下降傾斜させて養液が上記中央部３１ａから上記各端部３１ｂ，３１ｂに向けて流動するようにした山折り状容器３１と、長さ方向の各端部３２ｂ，３２ｂから中央部３２ａに向けてそれぞれ若干角度だけ下降傾斜させて養液が上記各端部３２ｂ，３２ｂから上記中央部３２ａに向けて流動するようにした谷折り状容器３２の２種類を使用している。   Each of the cultivation containers 3, 3... Is inclined slightly downward from the central portion 31 a in the length direction toward the end portions 31 b and 31 b, and the nutrient solution is supplied from the central portion 31 a to the end portions 31 b and 31 b. The mountain-folded container 31 that is made to flow toward 31b, and the nutrient solution is inclined downward by a slight angle from the end portions 32b and 32b in the length direction toward the central portion 32a. Two types of valley-folded containers 32 that are configured to flow from 32b toward the central portion 32a are used.

山折り状容器３１における中央部３１ａから各端部３１ｂ，３１ｂへの下降傾斜角度、及び谷折り状容器３２における各端部３２ｂ，３２ｂから中央部３２ａへの下降傾斜角度は、それぞれ養液が容器内をゆっくり流動する程度の微小角度（例えば角度１°〜２°程度）でよい。   The descent inclination angle from the central portion 31a to the end portions 31b and 31b in the mountain fold container 31 and the descent inclination angle from the end portions 32b and 32b to the central portion 32a in the valley fold container 32 are respectively determined by the nutrient solution. It may be a minute angle (for example, an angle of about 1 ° to 2 °) such that it slowly flows in the container.

そして、上記山折り状容器３１と上記谷折り状容器３２とは、順次交互に多段状に配置している。尚、図１の例では、山折り状容器３１が上で谷折り状容器３２が下に位置する状態で交互に配置されており、図６の例では、谷折り状容器３２が上で山折り状容器３１が下に位置する状態で交互に配置されている。   The mountain-folded container 31 and the valley-folded container 32 are sequentially arranged in a multistage manner. In the example of FIG. 1, the mountain fold-shaped containers 31 are alternately arranged with the valley fold-shaped containers 32 positioned below, and in the example of FIG. The folded containers 31 are alternately arranged in a state of being positioned below.

他方、上記養液循環装置２は、上記養液タンク２０内の養液をポンプ２１により最上段の容器（山折り状容器３１又は谷折り状容器３２）の最高高さ位置Ｈに供給した後、上下に隣接する各段の容器３１，３２において上段側容器（山折り状容器３１又は谷折り状容器３２）の最低高さ位置Ｌから下段側容器（３２又は３１）の最高高さ位置Ｈに順次自然流入させるとともに、最下段の容器（３２又は３１）の最低高さ位置Ｌから上記養液タンク２０内に自然流入させるように構成している。   On the other hand, after supplying the nutrient solution in the nutrient tank 20 to the highest height position H of the uppermost container (mountain-folded container 31 or valley-folded container 32) by the pump 21, the nutrient solution circulation apparatus 2 In the upper and lower adjacent containers 31, 32, the lowest height position L of the upper container (mountain folded container 31 or valley folded container 32) to the highest height position H of the lower container (32 or 31). In addition to the natural inflow sequentially, it is configured to naturally flow into the nutrient solution tank 20 from the lowest height position L of the lowermost container (32 or 31).

ところで、上段側容器の最低高さ位置Ｌ（中央部の場合と各端部の場合とがある）は次順の下段側容器の最高高さ位置Ｈ（各端部の場合と中央部の場合とがある）の直上にあって、該上段側容器の最低高さ位置Ｌと下段側容器の最高高さ位置Ｈとは接続管で接続されているとともに、最下段容器の最低高さ位置Ｌは養液タンク２０に対して接続管で接続されている。又、容器の最高高さ位置Ｈが長さ方向中央部にある場合には、該最高高さ位置Ｈに供給した養液が各端部側にほぼ均等量ずつ振り分けられるようにしている。   By the way, the lowest height position L of the upper side container (in the case of the center part and the case of each end part) is the highest height position H of the lower side container in the following order (in the case of each end part and the case of the central part). The lowest height position L of the upper container and the highest height position H of the lower container are connected by a connecting pipe, and the lowest height position L of the lower container Is connected to the nutrient solution tank 20 by a connecting pipe. In addition, when the highest height position H of the container is in the central portion in the length direction, the nutrient solution supplied to the highest height position H is distributed to each end portion by an approximately equal amount.

そして、この養液循環装置２は次のように機能する。即ち、養液タンク２０内の養液は、ポンプ２１で供給管２２を通して最上段の容器（３１又は３２）より上方位置まで汲み上げられて、該最上段容器の最高高さ位置Ｈに供給（放出）されるが、その最上段容器の最高高さ位置Ｈに供給した養液は、該最上段容器の下降傾斜側に自然流動していく。そして、最上段容器の最低高さ位置Ｌに達した養液は、該最低高さ位置Ｌから次順の容器（第２段容器）の最高高さ位置Ｈに自然流入し、同様に該第２段容器の下降傾斜側に自然流動して、第２段容器の最低高さ位置Ｌから第３段容器の最低高さ位置Ｈに自然流入し、順次同様に養液が最下段容器の最低高さ位置Ｌに達すると、該最低高さ位置Ｌから養液タンク２０内に自然流入するようになっている。   And this nutrient solution circulation apparatus 2 functions as follows. That is, the nutrient solution in the nutrient solution tank 20 is pumped up to a position above the uppermost container (31 or 32) by the pump 21 through the supply pipe 22 and supplied (released) to the highest height position H of the uppermost container. However, the nutrient solution supplied to the highest height position H of the uppermost container naturally flows toward the descending inclined side of the uppermost container. Then, the nutrient solution that has reached the lowest height position L of the uppermost container naturally flows from the lowest height position L to the highest height position H of the next container (second-stage container). It naturally flows to the downward sloping side of the second-stage container and naturally flows from the lowest height position L of the second-stage container to the lowest height position H of the third-stage container. When it reaches the height position L, it naturally flows into the nutrient solution tank 20 from the minimum height position L.

従って、本願請求項１の水耕栽培装置では、養液タンク２０内の養液を最上段容器の上方まで汲み上げた後は、該養液が自重で順次各段の容器内を流動した後、養液タンク２０内に自然還流することになる。つまり、最上段容器に供給した養液が順次各段の栽培容器を巡っていくので、各段の栽培容器に養液を個別供給することなしに全段の栽培容器に対してそれぞれ必要水量を流動させ得ることになる。   Therefore, in the hydroponic cultivation apparatus according to claim 1 of the present application, after the nutrient solution in the nutrient solution tank 20 is pumped up above the uppermost vessel, the nutrient solution is sequentially flown in the vessel of each stage by its own weight, It will naturally recirculate in the nutrient solution tank 20. In other words, since the nutrient solution supplied to the uppermost container sequentially goes around the cultivation container at each stage, the necessary amount of water is respectively supplied to the cultivation containers at all stages without individually supplying the nutrient solution to each cultivation container. It can be made to flow.

［本願請求項２の発明］
本願請求項２の発明は、図１に例示するように、上記請求項１の水耕栽培装置において、山折り状容器３１と谷折り状容器３２とは、山折り状容器３１が最上段に位置し且つ谷折り状容器３２が最下段に位置するように配置していることを特徴としている。 [Invention of claim 2 of the present application]
As illustrated in FIG. 1, the invention of claim 2 of the present application is the hydroponic cultivation apparatus of claim 1, wherein the mountain fold container 31 and the valley fold container 32 are the mountain fold container 31 at the top. It is located and it arrange | positions so that the valley fold-shaped container 32 may be located in the lowest stage.

この請求項２の水耕栽培装置では、最上段容器が山折り状容器３１であってその中央部３１ａが最高高さ位置Ｈとなる一方、最下段容器が谷折り状容器３２であってその中央部３２ａが最低高さ位置Ｌとなる。そして、この場合は、養液タンク２０内の養液を循環させるメインのパイプ（実施例の供給管２２）は、例えば図１に示すように栽培容器３の長さ方向の中央部付近に集約させて設置することができる。   In the hydroponic cultivation apparatus according to the second aspect, the uppermost container is a mountain fold-shaped container 31 and its central portion 31a is at the highest height position H, while the lowermost container is a valley-folded container 32. The central portion 32a is the lowest height position L. In this case, the main pipe (the supply pipe 22 in the embodiment) for circulating the nutrient solution in the nutrient solution tank 20 is concentrated near the central portion in the length direction of the cultivation container 3, for example, as shown in FIG. Can be installed.

［本願請求項１の発明の効果］
本願請求項１の発明の水耕栽培装置は、上記したように山折り状容器３１と谷折り状容器３２とを順次交互に多段状に配置しているとともに、養液タンク２０内の養液をポンプ２１により最上段容器（３１又は３２）の最高高さ位置Ｈに供給（放出）することで、該養液が各段の容器内を順次流動した後、最下段容器（３２又は３１）の最低高さ位置Ｌから養液タンク２０内に戻るように構成されている。 [Effect of the invention of claim 1 of the present application]
The hydroponic cultivation apparatus of the invention of claim 1 of the present application arranges the mountain fold-shaped container 31 and the valley fold-shaped container 32 alternately in a multistage shape as described above, and the nutrient solution in the nutrient solution tank 20 Is supplied (released) to the highest height position H of the uppermost container (31 or 32) by the pump 21, so that the nutrient solution sequentially flows in the containers of each stage, and then the lowermost container (32 or 31). It is comprised so that it may return in the nutrient solution tank 20 from the minimum height position L.

このように、最上段容器（３１又は３２）に供給した養液を下段側の各容器に順次供給できるようにすると、複数個の栽培容器３，３・・を多段式に配置したものであっても、供給する養液量は１つの容器に必要な量だけでよい。   Thus, when the nutrient solution supplied to the uppermost container (31 or 32) can be sequentially supplied to the lower containers, a plurality of cultivation containers 3, 3,... Are arranged in a multistage manner. However, the amount of nutrient solution to be supplied is only the amount required for one container.

従って、本願請求項１の水耕栽培装置では、養液循環装置２のポンプ２１として能力が比較的小さいものでも十分に使用可能であるので、安価なポンプ２１を採用できる（ポンプのコストを安価にできる）とともに、低出力の運転でよいので運転コスト（電気代）を安価にできるという効果がある。   Therefore, in the hydroponic cultivation apparatus according to the first aspect of the present invention, even a pump having a relatively small capacity can be sufficiently used as the pump 21 of the nutrient solution circulation apparatus 2, and therefore an inexpensive pump 21 can be employed (the cost of the pump is low). In addition, since low-power operation is sufficient, the operation cost (electricity cost) can be reduced.

［本願請求項２の発明の効果］
本願請求項２の発明は、上記請求項１の水耕栽培装置において、山折り状容器３１と谷折り状容器３２とは、山折り状容器３１が最上段に位置し且つ谷折り状容器３２が最下段に位置するように配置している。 [Effect of the invention of claim 2 of the present application]
The invention according to claim 2 of the present application is the hydroponic cultivation apparatus according to claim 1, wherein the mountain folded container 31 and the valley folded container 32 are such that the mountain folded container 31 is positioned at the uppermost stage and the valley folded container 32. Is placed at the bottom.

このように山折り状容器３１と谷折り状容器３２とを請求項２のように配置すると、養液タンク２０内の養液を循環させるメインのパイプ（供給管２２）は、栽培容器３の長さ方向の中央部付近に集約させて設置することができる。   Thus, when the mountain-folded container 31 and the valley-folded container 32 are arranged as in claim 2, the main pipe (supply pipe 22) for circulating the nutrient solution in the nutrient solution tank 20 is the cultivation vessel 3. It can be installed in the vicinity of the central part in the length direction.

従って、この請求項２の水耕栽培装置では、上記請求項１の効果に加えて、養液を循環させるメインのパイプ（供給管２２）の長さを短くできるので、管材料コストを安価にできるという効果がある。   Therefore, in the hydroponic cultivation apparatus according to the second aspect, in addition to the effect of the first aspect, the length of the main pipe (supply pipe 22) for circulating the nutrient solution can be shortened, so that the pipe material cost can be reduced. There is an effect that can be done.

本願第１実施例の水耕栽培装置の側面図である。It is a side view of the hydroponic cultivation apparatus of this-application 1st Example. 図１のII部拡大図である。It is the II section enlarged view of FIG. 図１のIII部拡大図である。It is the III section enlarged view of FIG. 図１のIV部拡大図である。It is the IV section enlarged view of FIG. 図１のＶ部拡大図である。It is the V section enlarged view of FIG. 本願第２実施例の水耕栽培装置の側面図である。It is a side view of the hydroponic cultivation apparatus of this-application 2nd Example. 従来の水耕栽培装置における養液循環装置の説明図である。It is explanatory drawing of the nutrient solution circulation apparatus in the conventional hydroponic cultivation apparatus.

以下、図１〜図６を参照して本願の実施例を説明すると、図１〜図５には本願第１実施例の水耕栽培装置を示し、図６には本願第２実施例の水耕栽培装置を示している。   Hereinafter, the embodiment of the present application will be described with reference to FIGS. 1 to 6. FIGS. 1 to 5 show the hydroponic cultivation apparatus of the first embodiment of the present application, and FIG. 6 shows the water of the second embodiment of the present application. The cultivation apparatus is shown.

図１〜図５の第１実施例の水耕栽培装置と図６の第２実施例の水耕栽培装置とは、後述するように栽培容器３として山折り状容器３１と谷折り状容器３２との２種類を使用し、該山折り状容器３１と谷折り状容器３２とを順次交互に多段状に配置したものである。そして、後述するように、図１の第１実施例では、山折り状容器３１が最上段に位置し谷折り状容器３２が最下段に位置するように配置しているのに対して、図６の第２実施例では、谷折り状容器３２が最上段に位置し山折り状容器３１が最下段に位置するように配置したものである。尚、図１〜図５の第１実施例は、本願の請求項１と請求項２の両方に対応するものであるが、図６の第２実施例は、本願の請求項１のみに対応するものである。   The hydroponic cultivation apparatus of the first embodiment of FIGS. 1 to 5 and the hydroponic cultivation apparatus of the second embodiment of FIG. 6 are a mountain fold container 31 and a valley fold container 32 as a cultivation container 3 as described later. Are used, and the mountain-folded container 31 and the valley-folded container 32 are sequentially arranged in a multistage manner. As will be described later, in the first embodiment of FIG. 1, the mountain folded container 31 is positioned at the uppermost stage and the valley folded container 32 is positioned at the lowermost stage. In the second embodiment of FIG. 6, the valley fold container 32 is disposed at the uppermost stage and the mountain fold container 31 is disposed at the lowermost stage. 1 to 5 correspond to both claims 1 and 2 of the present application, but the second embodiment of FIG. 6 corresponds only to claim 1 of the present application. To do.

［図１〜図５の第１実施例］
図１に示す第１実施例の水耕栽培装置は、栽培室１内において養液が貯留される細長形状の栽培容器３を上下に所定間隔をもって多段（例えば４〜６段程度）に配置する一方、養液タンク２０内の養液を養液循環装置２により養液タンク２０と各栽培容器３，３・・の間で循環させるようにしたものである。 [First Example of FIGS. 1 to 5]
The hydroponic cultivation apparatus according to the first embodiment shown in FIG. 1 arranges the elongated cultivation containers 3 in which the nutrient solution is stored in the cultivation room 1 in a plurality of stages (for example, about 4 to 6 stages) at predetermined intervals. On the other hand, the nutrient solution in the nutrient solution tank 20 is circulated between the nutrient solution tank 20 and each of the cultivation containers 3, 3,.

栽培室１（図１）内は、空気調和機によって植栽植物Ｐの育成に適した室温に調整されている。   The inside of the cultivation room 1 (FIG. 1) is adjusted to room temperature suitable for the cultivation of the plant P by the air conditioner.

図１の各栽培容器３，３・・は、浅皿状で幅が４０〜８０cm、長さが４〜１０ｍ程度の大きさのものが使用できる。尚、この大きさは特に限定するものではない。そして、この各栽培容器３は、図２〜図５に拡大図示するように箱体３３の上部開口部分に水耕ベッド３４を載置したものである。水耕ベッド３４には、幅方向及び長さ方向にそれぞれ所定間隔をもって植栽部３５が設けられていて、該各植栽部３５，３５・・にそれぞれ植物Ｐが植栽される。尚、この各栽培容器３，３・・は、栽培室１内において図示しない栽培棚の各棚部分に載置されている。   Each of the cultivation containers 3, 3,... In FIG. 1 can be used as a shallow dish having a width of 40 to 80 cm and a length of about 4 to 10 m. The size is not particularly limited. And each cultivation container 3 mounts the hydroponic bed 34 in the upper opening part of the box 33, as it expands in figure in FIGS. The hydroponics bed 34 is provided with planting portions 35 at predetermined intervals in the width direction and the length direction, and plants P are planted in the respective planting portions 35, 35. Each of the cultivation containers 3, 3... Is placed on each shelf portion of a cultivation shelf (not shown) in the cultivation room 1.

各栽培容器３，３・・には、長さ方向の中央部３１ａから各端部３１ｂ，３１ｂに向けてそれぞれ若干角度だけ下降傾斜させた山折り状容器３１と、長さ方向の各端部３２ｂ，３２ｂから中央部３２ａに向けてそれぞれ若干角度だけ下降傾斜させ谷折り状容器３２の２種類を使用している。尚、山折り状容器３１においては、その中央部３１ａが最高高さ位置Ｈとなる一方、その各端部３１ｂ，３１ｂが最低高さ位置Ｌとなり、他方、谷折り状容器３２においては、その中央部３２ａが最低高さ位置Ｌとなる一方、その各端部３１ｂ，３１ｂが最高高さ位置Ｈとなる。   Each cultivation container 3, 3... Has a mountain-folded container 31 that is inclined downward from the central portion 31 a in the length direction toward each end portion 31 b, 31 b, and each end portion in the length direction. Two types of valley-folded containers 32 are used which are inclined downward by a slight angle from 32b and 32b toward the central portion 32a. In the mountain-folded container 31, the central portion 31a is at the highest height position H, while the end portions 31b and 31b are at the lowest height position L. On the other hand, in the valley-folded container 32, While the central portion 32a is at the lowest height position L, its end portions 31b and 31b are at the highest height position H.

山折り状容器３１における中央部３１ａから各端部３１ｂ，３１ｂへの下降傾斜角度ａ１（図２参照）、及び谷折り状容器３２における各端部３２ｂ，３２ｂから中央部３２ａへの下降傾斜角度ａ２（図３参照）は、それぞれ容器（箱体３３）内の養液Ｗが下降傾斜側にゆっくり流動する程度の微小角度（例えば角度１°〜２°程度）に設定されている。   A downward inclination angle a1 (see FIG. 2) from the central portion 31a to the end portions 31b and 31b in the mountain fold-shaped container 31 and a downward inclination angle from the respective end portions 32b and 32b to the central portion 32a in the valley-folded container 32. a2 (see FIG. 3) is set to a minute angle (for example, an angle of about 1 ° to 2 °) such that the nutrient solution W in the container (box body 33) slowly flows toward the downward inclination side.

そして、各段の容器３１，３２内には、図２〜図５に示すように常時所定深さ（例えば５〜１０mm程度の深さ）の養液Ｗが存在するように、ポンプ２１からの養液供給量を設定している。尚、各容器３１，３２内を流動する養液Ｗの流速は、該各容器３１，３２の傾斜角度ａ１，ａ２が大きく影響するが、例えば、ポンプ２１による養液供給量を６リットル／分程度に設定した状態で、各段の容器３１，３２中の養液深さがそれぞれ所定深さ（例えば５〜１０mm程度の深さ）に維持されるように、該各容器３１，３２の傾斜角度を設定するとよい。   And in the containers 31 and 32 of each stage, as shown in FIGS. 2 to 5, the nutrient solution W having a predetermined depth (for example, a depth of about 5 to 10 mm) is always present from the pump 21. The nutrient solution supply amount is set. The flow rate of the nutrient solution W flowing in the containers 31 and 32 is greatly affected by the inclination angles a1 and a2 of the containers 31 and 32. For example, the supply amount of the nutrient solution by the pump 21 is 6 liters / minute. In such a state that the nutrient solution depth in the containers 31 and 32 at each stage is maintained at a predetermined depth (for example, a depth of about 5 to 10 mm), the inclination of the containers 31 and 32 is set. An angle should be set.

そして、図１の第１実施例の水耕栽培装置では、各２列ずつ（合計４列）の山折り状容器３１，３１と谷折り状容器３２，３２とを、山折り状容器３１が上で谷折り状容器３２が下に位置する状態で順次交互に配置して構成されている。尚、図１の例では、最上段が山折り状容器３１で最下段が谷折り状容器３２となる。
各段の栽培容器３，３・・の上部には、所定高さ間隔をもってそれぞれ照明器（図示例では蛍光灯）４，４・・が設置されているが、この各照明器４，４・・はその下部に位置している各栽培容器３，３・・の上面（傾斜面）と平行に配置されている。尚、この照明器４は、室内で水耕栽培する場合に必要なものである。 And in the hydroponic cultivation apparatus of 1st Example of FIG. 1, the mountain fold-shaped container 31 is the mountain fold-shaped container 31 and 31 and the valley fold-shaped containers 32 and 32 of each 2 rows (a total of 4 rows). The valley-folded containers 32 are arranged alternately one after another with the valley-folded containers 32 positioned below. In the example of FIG. 1, the uppermost stage is a mountain fold container 31 and the lowermost stage is a valley fold container 32.
Illuminators (fluorescent lamps in the illustrated example) 4, 4,... Are installed at predetermined height intervals above the cultivation containers 3, 3,. . Is arranged in parallel with the upper surface (inclined surface) of each of the cultivation containers 3, 3,. The illuminator 4 is necessary for hydroponics indoors.

他方、上記養液循環装置２は、図１に示すように、養液タンク２０と、ポンプ２１と、供給管２２と、上下に隣接する各段の容器を接続する接続管２４，２５，２６と、最下段容器３２と養液タンク２０を接続する接続管２７とを有して構成している。   On the other hand, as shown in FIG. 1, the nutrient solution circulation device 2 includes a nutrient solution tank 20, a pump 21, a supply pipe 22, and connecting pipes 24, 25, and 26 that connect containers in the upper and lower adjacent stages. And a connecting pipe 27 that connects the lowermost container 32 and the nutrient solution tank 20 to each other.

供給管２２は、図１に示すように栽培容器３の長さ方向の中央部付近に集約させて設置している。   As shown in FIG. 1, the supply pipe 22 is installed in the vicinity of the central portion in the length direction of the cultivation container 3.

供給管２２には、バルブ２９が介設されていて、該バルブ２９を調整することによってポンプ２１により供給管２２を通して供給される養液量（時間当たりの量）を調整し得るようになっている。   The supply pipe 22 is provided with a valve 29, and by adjusting the valve 29, the amount of nutrient solution (amount per hour) supplied through the supply pipe 22 by the pump 21 can be adjusted. Yes.

供給管２２の先端部２２ｂは、最上段の山折り状容器３１の中央部３１ａ（最高高さ位置Ｈとなる）に開口させている（詳細は図２参照）。   The distal end portion 22b of the supply pipe 22 is opened at the central portion 31a (the highest height position H) of the uppermost mountain fold-shaped container 31 (see FIG. 2 for details).

最上段の山折り状容器３１の各端部３１ｂ，３１ｂ（最低高さ位置Ｌとなる）の直下には、２段目の谷折り状容器３２の各端部３２ｂ，３２ｂ（最高高さ位置Ｈとなる）が位置しており、該最上段容器（山折り状容器）３１の各端部３１ｂ，３１ｂと２段目容器（谷折り状容器）３２の各端部３２ｂ，３２ｂとがそれぞれ接続管２４，２４で接続されている（詳細は図３参照）。   Immediately below the respective end portions 31b, 31b of the uppermost mountain folded container 31 (becomes the lowest height position L), the respective end portions 32b, 32b of the second stage valley folded container 32 (the highest height position). H), and the end portions 31b and 31b of the uppermost container (mountain-folded container) 31 and the end portions 32b and 32b of the second-stage container (valley-folded container) 32 are respectively They are connected by connecting pipes 24, 24 (see FIG. 3 for details).

２段目の谷折り状容器３２の中央部３２ａ（最低高さ位置Ｌとなる）の直下には、次段（３段目）の山折り状容器３１の中央部３１ａ（最高高さ位置Ｈとなる）が位置しており、該２段目の谷折り状容器３２の中央部３２ａと該３段目の山折り状容器３１の中央部３１ａとが接続管２５で接続されている（詳細は図４参照）。   A central portion 31a (maximum height position H) of the next-stage (third-stage) mountain-folded container 31 is located immediately below the central portion 32a (the lowest height position L) of the second-stage valley-folded container 32. The central portion 32a of the second-stage valley fold container 32 and the central portion 31a of the third-stage mountain fold container 31 are connected by a connecting pipe 25 (details). (See FIG. 4).

３段目の山折り状容器３１の各端部３１ｂ，３１ｂ（最低高さ位置Ｌとなる）の直下には、４段目（最下段）の谷折り状容器３２の各端部３２ｂ，３２ｂ（最高高さ位置Ｈとなる）が位置しており、該３段目容器（山折り状容器）３１の各端部３１ｂ，３１ｂと４段目容器（谷折り状容器）３２の各端部３２ｂ，３２ｂとがそれぞれ接続管２６，２６で接続されている（詳細は図３と同様である）。   Immediately below each end 31b, 31b (becomes the lowest height position L) of the third level mountain folded container 31, each end 32b, 32b of the fourth level (lowermost level) valley folded container 32 is provided. (The highest height position H) is located, and each end 31b, 31b of the third-stage container (mountain-folded container) 31 and each end of the fourth-stage container (valley-folded container) 32 32b and 32b are connected by connecting pipes 26 and 26, respectively (the details are the same as in FIG. 3).

４段目（最下段）の谷折り状容器３２の中央部３２ａ（最低高さ位置Ｌとなる）の直下には、養液タンク２０が配置されており、該４段目の谷折り状容器３２の中央部３２ａと養液タンク２０とが接続管２７で接続されている（詳細は図５参照）。   The nutrient solution tank 20 is disposed immediately below the central portion 32a (at the lowest height position L) of the fourth-stage (lowermost) valley-folded container 32, and the fourth-stage valley-folded container A central portion 32a of 32 and the nutrient solution tank 20 are connected by a connecting pipe 27 (refer to FIG. 5 for details).

この第１実施例の水耕栽培装置では、栽培容器３の各植栽部３５，３５・・に植栽されている各植物Ｐは、図２〜図５に示すように、各根Ｐａが箱体３３の底部に達しており、該箱体３３の底部付近を流動する養液Ｗに植物Ｐの根Ｐａが常時浸かった状態にある（各根Ｐａから養液Ｗ中の有効成分を吸収し得るようになっている）。   In the hydroponic cultivation apparatus of the first embodiment, each plant P planted in each planting part 35, 35,... Of the cultivation container 3 has a root Pa as shown in FIGS. It has reached the bottom of the box 33 and the root Pa of the plant P is always immersed in the nutrient solution W flowing near the bottom of the box 33 (absorbs the active ingredient in the nutrient solution W from each root Pa). Can be)

この第１実施例（図１〜図５）の水耕栽培装置は、次のように機能する。   The hydroponic cultivation apparatus of the first embodiment (FIGS. 1 to 5) functions as follows.

即ち、養液循環装置２のポンプ２１を作動させると、養液タンク２０内の養液が供給管２２を通って最上段の山折り状容器３１の設置高さより高位置まで汲み上げられた後、供給管２２の先端部２２ｂ（図２）から最上段の山折り状容器３１の中央部３１ａに吐出される。このとき、山折り状容器３１の中央部３１ａは該山折り状容器３１における最高高さ位置Ｈであって、該供給管先端部２２ｂから吐出された養液Ｗは山折り状容器３１の中央部３１ａ（最高高さ位置Ｈ）から両側に分流されてそれぞれ容器の下降傾斜側（各端部３１ｂ，３１ｂ側）に流動するようになる。尚、供給管先端部２２ｂには、該先端部２２ｂから吐出される養液Ｗを両側に均等量ずつ振り分けるための適宜の分流手段を設けておくとよい。   That is, when the pump 21 of the nutrient solution circulation device 2 is operated, the nutrient solution in the nutrient solution tank 20 is pumped up to a position higher than the installation height of the uppermost mountain folded container 31 through the supply pipe 22. It is discharged from the distal end portion 22b (FIG. 2) of the supply pipe 22 to the central portion 31a of the uppermost mountain folded container 31. At this time, the central portion 31a of the mountain-folded container 31 is the highest height position H in the mountain-folded container 31, and the nutrient solution W discharged from the supply pipe tip 22b is the center of the mountain-folded container 31. From the portion 31a (maximum height position H), the flow is diverted to both sides and flows to the descending inclination side (each end portion 31b, 31b side) of the container. In addition, it is good for the supply pipe front-end | tip part 22b to provide the appropriate diversion means for distributing the nutrient solution W discharged from this front-end | tip part 22b by equal amounts to both sides.

次に、最上段容器（山折り状容器）３１の両側に振り分けられた各養液Ｗ，Ｗは、それぞれ下降傾斜側（各端部側）にゆっくりと流下していき（そのとき植栽植物Ｐの根Ｐａから養液Ｗ中の養分を吸収する）、該最上段容器（山折り状容器）３１の各端部３１ｂ，３１ｂに達する。   Next, each nutrient solution W, W distributed to both sides of the uppermost container (mountain-folded container) 31 slowly flows down to the descending slope side (each end side) (at that time planting plant) The nutrient in the nutrient solution W is absorbed from the root Pa of P), and reaches each end 31b, 31b of the uppermost container (mountain-folded container) 31.

次に、最上段容器（山折り状容器）３１の各端部３１ｂ，３１ｂに達した養液Ｗは、それぞれ接続管２４，２４を通って２段目容器（谷折り状容器）３２の各端部３２ｂ，３２ｂに自然流入した後、該２段目容器（谷折り状容器）３２の下降傾斜側（中央部３２ａ側）に向けて流動し（図３参照）、該２段目容器（谷折り状容器）３２の中央部３２ａ（最低高さ位置Ｌとなる）において合流する。   Next, the nutrient solution W that has reached the end portions 31b and 31b of the uppermost container (mountain-folded container) 31 passes through the connecting pipes 24 and 24, respectively, and each of the second-stage containers (valley-folded containers) 32. After naturally flowing into the end portions 32b and 32b, the second-stage container (valley fold-shaped container) 32 flows toward the downwardly inclined side (center side 32a side) of the second-stage container (valley folded container) 32 (see FIG. 3). At the central portion 32a of the (valley folded container) 32 (becomes the lowest height position L), they merge.

次に、２段目容器（谷折り状容器）３２の中央部３２ａに合流した養液Ｗは、図４に示すように接続管２５を通って３段目容器（山折り状容器）３１の中央部３１ａ（最高高さ位置Ｈとなる）に自然流下し、該３段目容器（山折り状容器）３１の中央部３１ａから両側（各端部３１ｂ，３１ｂ側）に分流される。   Next, the nutrient solution W that has joined the central portion 32a of the second-stage container (valley fold-shaped container) 32 passes through the connecting pipe 25 as shown in FIG. The water naturally flows down to the central portion 31a (at the highest height position H) and is divided from the central portion 31a of the third-stage container (mountain-folded container) 31 to both sides (each end 31b, 31b side).

同様に、３段目容器（山折り状容器）３１の各端部３１ｂ，３１ｂから各接続管２６，２６を通って最下段容器（谷折り状容器）３２の各端部３２ｂ，３２ｂに自然流入し、続いて該養液Ｗが最下段容器（谷折り状容器）３２の各端部３２ｂ，３２ｂからその中央部３２ａ（最低高さ位置Ｌとなる）に流動（合流）する。   Similarly, each end portion 31b, 31b of the third-stage container (mountain-folded container) 31 passes through the connecting pipes 26, 26 to each end portion 32b, 32b of the lowermost-stage container (valley-folded container) 32. Then, the nutrient solution W flows (joins) from the end portions 32b and 32b of the lowermost container (valley folded container) 32 to the center portion 32a (becomes the lowest height position L).

そして、最下段容器（谷折り状容器）３２の中央部３２ａに集まる養液Ｗは、図５に示すように接続管２７を通って順次養液タンク２０内に自然流入する。以降、同様にポンプ２１により養液Ｗが養液タンク２０内と各段の栽培容器３，３・・との間で循環されるようになっている。   Then, the nutrient solution W collected in the central portion 32a of the lowermost container (valley folded container) 32 naturally flows into the nutrient solution tank 20 sequentially through the connection pipe 27 as shown in FIG. Thereafter, similarly, the nutrient solution W is circulated between the nutrient solution tank 20 and the cultivation containers 3, 3.

このように、図１〜図５に示す第１実施例の水耕栽培装置では、養液タンク２０内の養液を最上段容器（山折り状容器）３１の上方まで汲み上げた後には、該養液が自重で順次各段の容器内を流動した後、養液タンク２０内に自然還流することになる。つまり、最上段容器３（山折り状容器３１）に供給した養液Ｗが順次各段の栽培容器３を巡っていくので、各段の栽培容器３，３・・に養液Ｗを個別供給することなしに全段の栽培容器に対してそれぞれ必要水量を流動させ得ることになる。   As described above, in the hydroponic cultivation apparatus of the first embodiment shown in FIGS. 1 to 5, after the nutrient solution in the nutrient solution tank 20 is pumped up above the uppermost vessel (mountain-folded vessel) 31, After the nutrient solution sequentially flows through the containers of each stage by its own weight, it naturally recirculates into the nutrient solution tank 20. That is, since the nutrient solution W supplied to the uppermost container 3 (mountain-folded container 31) sequentially goes around the cultivation container 3 of each stage, the nutrient solution W is individually supplied to the cultivation containers 3 of each stage. Without the need, the required amount of water can be made to flow in all the cultivation containers.

従って、養液循環装置２のポンプ２１として能力が比較的小さいものでも十分に使用可能であるので、安価なポンプ２１を採用できる（ポンプのコストを安価にできる）とともに、低出力の運転でよいので運転コスト（電気代）を安価にできる。   Therefore, even a pump having a relatively small capacity can be sufficiently used as the pump 21 of the nutrient solution circulation device 2, so that an inexpensive pump 21 can be employed (the cost of the pump can be reduced) and low-power operation is sufficient. Therefore, the operating cost (electricity cost) can be reduced.

又、この第１実施例の水耕栽培装置では、各栽培容器３，３・・は、山折り状容器３１が最上段に位置し且つ谷折り状容器３２が最下段に位置するように配置しているが、各容器３１，３２をこのように配置すると、養液タンク２０内の養液Ｗを循環させるメインのパイプ（供給管２２）は、図１に示すように栽培容器３の長さ方向の中央部付近に集約させて設置することができる。そして、供給管２２を栽培容器３の長さ方向の中央部付近に集約させて設置すると、供給管２２の長さを短くできるので、管材料コストを安価にできる。   Further, in the hydroponic cultivation apparatus of the first embodiment, the cultivation containers 3, 3,... Are arranged such that the mountain folded container 31 is located at the uppermost stage and the valley folded container 32 is located at the lowest stage. However, when the containers 31 and 32 are arranged in this way, the main pipe (supply pipe 22) for circulating the nutrient solution W in the nutrient solution tank 20 is the length of the cultivation vessel 3 as shown in FIG. It can be installed in the vicinity of the central part in the vertical direction. And if the supply pipe | tube 22 is concentrated and installed in the central part vicinity of the length direction of the cultivation container 3, since the length of the supply pipe | tube 22 can be shortened, pipe | tube material cost can be made cheap.

［図６の第２実施例］
図６に示す第２実施例の水耕栽培装置は、上記第１実施例の変形例で、本願請求項１のみに対応するものである。 [Second Example of FIG. 6]
The hydroponic cultivation apparatus of the second embodiment shown in FIG. 6 is a modification of the first embodiment and corresponds only to claim 1 of the present application.

そして、この第２実施例（図６）の水耕栽培装置では、交互に多段状に配置される山折り状容器３１と谷折り状容器３２とを、上記第１実施例とは逆に、谷折り状容器３２が最上段に位置している一方、山折り状容器３１を最下段に位置させたものである。尚、第２実施例の水耕栽培装置のその他の構成は、上記第１実施例とほぼ同じであるので、該第１実施例の説明を援用する。   And in the hydroponic cultivation apparatus of this 2nd Example (FIG. 6), the mountain fold-shaped container 31 and the valley fold-shaped container 32 which are alternately arrange | positioned in multistage form are reverse to the said 1st Example, The valley-folded container 32 is positioned at the uppermost stage, while the mountain-folded container 31 is positioned at the lowermost stage. In addition, since the other structure of the hydroponic cultivation apparatus of 2nd Example is substantially the same as the said 1st Example, description of this 1st Example is used.

この第２実施例（図６）の水耕栽培装置では、最上段の栽培容器３が谷折り状容器３２（最高高さ位置Ｈが両端部３２ｂ，３２ｂの２箇所にある）であるので、供給管２２の先端側を２つに分岐（各分岐管２２ａ，２２ａ）させる一方、各分岐管２２ａ，２２ａにそれぞれバルブ２９，２９を介設する必要があるとともに、一方（図６の左側）の分岐管２２ａを長くする必要がある。   In the hydroponic cultivation apparatus of the second embodiment (FIG. 6), the uppermost cultivation container 3 is a valley-folded container 32 (the highest height position H is at two positions 32b and 32b). The front end side of the supply pipe 22 is branched into two (respective branch pipes 22a and 22a), while the branch pipes 22a and 22a need to be provided with valves 29 and 29, respectively (left side in FIG. 6). It is necessary to lengthen the branch pipe 22a.

従って、この第２実施例のものでは、材料コスト面で上記第１実施例のものより不利であるが、この第２実施例の水耕栽培装置は、本願請求項１にこの第２実施例のものも含むこと確認するために開示したものである。   Therefore, although the thing of this 2nd Example is disadvantageous from the said 1st Example in terms of material cost, the hydroponic cultivation apparatus of this 2nd Example is this 2nd Example in Claim 1 of this application. It is disclosed to confirm that it also includes.

１は栽培室、２は養液循環装置、３は栽培容器、４は照明器、２０は養液タンク、２１はポンプ、２２は供給管、２４〜２７は接続管、３１は山折り状容器、３２は谷折り状容器、３１ａ，３２ａは容器の中央部、３１ｂ，３２ｂは容器の端部である。   1 is a cultivation room, 2 is a nutrient solution circulation device, 3 is a cultivation container, 4 is an illuminator, 20 is a nutrient solution tank, 21 is a pump, 22 is a supply pipe, 24 to 27 are connection pipes, and 31 is a mountain-folded container , 32 are valley-folded containers, 31a and 32a are the central portions of the containers, and 31b and 32b are the end portions of the containers.

Claims (2)

養液が貯留される細長形状の栽培容器（３）を上下に所定間隔をもって多段状に配置する一方、養液タンク（２０）内の養液を養液循環装置（２）により養液タンク（２０）と上記各栽培容器（３，３・・）の間で循環させるようにした水耕栽培装置であって、
上記各栽培容器（３，３・・）は、長さ方向の中央部（３１ａ）から各端部（３１ｂ，３１ｂ）に向けてそれぞれ若干角度だけ下降傾斜させて養液が上記中央部（３１ａ）から上記各端部（３１ｂ，３１ｂ）に向けて流動するようにした山折り状容器（３１）と、長さ方向の各端部（３２ｂ，３２ｂ）から中央部（３２ａ）に向けてそれぞれ若干角度だけ下降傾斜させて養液が上記各端部（３２ｂ，３２ｂ）から中央部（３２ａ）に向けて流動するようにした谷折り状容器（３２）の２種類を使用して、上記山折り状容器（３１）と上記谷折り状容器（３２）とを順次交互に多段状に配置しているとともに、
上記養液循環装置（２）は、上記養液タンク（２０）内の養液をポンプ（２１）により最上段の容器（３１又は３２）の最高高さ位置（Ｈ）に供給した後、上下に隣接する各段の容器（３１，３２）において上段側容器（３１又は３２）の最低高さ位置（Ｌ）から下段側容器（３２又は３１）の最高高さ位置（Ｈ）に順次自然流入させるとともに、最下段の容器（３２又は３１）の最低高さ位置（Ｌ）から上記養液タンク（２０）内に自然流入させるように構成している、
ことを特徴とする水耕栽培装置。 While the elongated cultivation containers (3) in which the nutrient solution is stored are arranged in a multistage shape with a predetermined interval in the vertical direction, the nutrient solution in the nutrient solution tank (20) is fed to the nutrient solution tank (2) by the nutrient solution circulation device (2) ( 20) and a hydroponic cultivation apparatus that circulates between each of the cultivation containers (3, 3,...)
Each of the cultivation containers (3, 3,...) Is inclined downward by a slight angle from the central portion (31a) in the length direction toward the end portions (31b, 31b), and the nutrient solution becomes the central portion (31a). ) And the mountain-folded container (31) that flows toward the ends (31b, 31b), and the lengthwise ends (32b, 32b) toward the center (32a), respectively. Using the two types of valley-folded containers (32) in which the nutrient solution flows from the respective end portions (32b, 32b) toward the central portion (32a) by being inclined downward by a slight angle, The folded containers (31) and the valley folded containers (32) are arranged alternately in a multi-stage, and
The nutrient solution circulation device (2) is configured to supply the nutrient solution in the nutrient solution tank (20) to the highest height position (H) of the uppermost container (31 or 32) by the pump (21), and then move up and down. In each of the containers (31, 32) adjacent to the uppermost container (31 or 32) from the lowest height position (L) of the lower container (32 or 31) to the highest height position (H) of the lower container (32). And is configured to naturally flow into the nutrient solution tank (20) from the lowest height position (L) of the lowest container (32 or 31),
Hydroponic cultivation apparatus characterized by that. 請求項１において、
上記山折り状容器（３１）と上記谷折り状容器（３２）とは、山折り状容器（３１）が最上段に位置し且つ谷折り状容器（３２）が最下段に位置するように配置している、
ことを特徴とする水耕栽培装置。 In claim 1,
The mountain fold container (31) and the valley fold container (32) are arranged so that the mountain fold container (31) is located at the uppermost stage and the valley fold container (32) is located at the lowermost stage. doing,
Hydroponic cultivation apparatus characterized by that.
JP2011244070A 2011-11-08 2011-11-08 Hydroponic device Pending JP2013099262A (en)

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JP2017192335A (en) * 2016-04-20 2017-10-26 司ゴム電材株式会社 Hydroponic shelf
JP2019170391A (en) * 2019-06-10 2019-10-10 司ゴム電材株式会社 Hydroponics shelf

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JP2017192335A (en) * 2016-04-20 2017-10-26 司ゴム電材株式会社 Hydroponic shelf
JP2019170391A (en) * 2019-06-10 2019-10-10 司ゴム電材株式会社 Hydroponics shelf

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