JP6946533B1 - Floating and sinking cage frame structure, how to operate the floating and sinking cage frame structure and floating and sinking structure - Google Patents

Floating and sinking cage frame structure, how to operate the floating and sinking cage frame structure and floating and sinking structure Download PDF

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JP6946533B1
JP6946533B1 JP2020167972A JP2020167972A JP6946533B1 JP 6946533 B1 JP6946533 B1 JP 6946533B1 JP 2020167972 A JP2020167972 A JP 2020167972A JP 2020167972 A JP2020167972 A JP 2020167972A JP 6946533 B1 JP6946533 B1 JP 6946533B1
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泰生 熊沢
泰生 熊沢
弘実 木下
弘実 木下
大谷　豊
豊 大谷
真吾 田口
真吾 田口
凌亮 田中
凌亮 田中
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Nichimo 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
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    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Abstract

【課題】沈下時の姿勢を所望の傾斜状態に簡易に制御することができる浮沈式生簀枠構造体を提供する。【解決手段】浮沈式生簀枠構造体１０は、複数の部屋に区画された中空状の枠部分２０，３０を備える。複数の部屋２１、２２、２３，３１，３２、３３はそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口２１ａ、２２ａ、２３ａ，３１ａ、３２ａ、３３ａと、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口２１ｗ、２３ｗ，３１ｗ、３２ｗ、３３ｗと、を有する。そして、複数の部屋２１、２２、２３，３１、３２、３３には、水流入出口の開口面積の総計が互いに異なる２つの部屋（２１と２２等）が少なくとも含まれる。【選択図】図２PROBLEM TO BE SOLVED: To provide a floating / sinking cage frame structure capable of easily controlling a posture at the time of sinking to a desired inclined state. SOLUTION: A floating and sinking cage frame structure 10 includes hollow frame portions 20 and 30 partitioned into a plurality of rooms. The plurality of rooms 21, 22, 23, 31, 32, 33, respectively, have one or more air inflow ports 21a, 22a, 23a, 31a, 32a, 33a that allow air to flow between the inside and the outside. And one or more water inflow outlets 21w, 23w, 31w, 32w, 33w that allow the passage of water between the inside and the outside. The plurality of rooms 21, 22, 23, 31, 32, 33 include at least two rooms (21 and 22, etc.) having different total opening areas of the water inflow outlets. [Selection diagram] Fig. 2

Description

本発明は、水面に対して浮沈可能な浮沈式生簀枠構造体、浮沈式生簀枠構造体の操作方法及び浮沈式構造体に関する。 The present invention relates to a floating / sinking cage frame structure that can float / sink with respect to the water surface, a method of operating the floating / sinking cage frame structure, and a floating / sinking structure.

水面に浮く状態で設置される生簀枠構造体と、生簀枠構造体に吊り下げられる網とを備え、網によって魚介類の生息空間を形成する生簀がある。 There is a cage that has a cage frame structure that is installed floating on the surface of the water and a net that is suspended from the cage frame structure, and the net forms a habitat for fish and shellfish.

生簀は、魚介類の海面養殖に利用される場合、穏やかな海域に設置されることが望ましい。しかしながら、海面養殖に適した穏やかな海域には、多くの場合、既に生簀が設置されており、昨今、新たな生簀の設置が制限されつつある。そのため、波が高い等の厳しい環境の海域に生簀を設置して養殖を行う事例が増えつつある。 When the cage is used for sea surface aquaculture of fish and shellfish, it is desirable to install it in a calm sea area. However, in many cases, cages have already been installed in calm waters suitable for sea surface aquaculture, and the installation of new cages is being restricted these days. For this reason, there are an increasing number of cases in which fish cages are installed and cultivated in harsh environments such as high waves.

生簀には、上述の生簀枠構造体として、浮沈式の生簀枠構造体（以下、浮沈式生簀枠構造体）を用いるものがある。この浮沈式生簀枠構造体は、例えば波が高くなる状況下において水中に沈下されることで、波浪に起因する損傷等を回避し得る。そのため、浮沈式生簀枠構造体は、上述したような波が高い等の厳しい環境の海域に設置される生簀において有効に機能し、今後、とりわけ水産業において益々普及していくことが期待されている。 As the cage, there is a cage that uses a floating / sinking cage frame structure (hereinafter referred to as a floating / sinking cage frame structure) as the above-mentioned cage frame structure. This floating-sink type cage structure can avoid damage caused by waves by being submerged in water, for example, in a situation where waves are high. Therefore, the floating-sink type cage structure functions effectively in cages installed in sea areas in harsh environments such as high waves as described above, and is expected to become more and more popular in the future, especially in the fishery industry. There is.

一般的な浮沈式生簀枠構造体は、中空状に形成され、内部で空気と水を置換させることで浮沈動作を実施する。詳しくは、このタイプの浮沈式生簀枠構造体は、内部に空気を充填させることで水面に浮き、内部の空気を水に置換することで水面に対する沈下動作を開始する。 A general floating / sinking cage frame structure is formed in a hollow shape, and the floating / sinking operation is performed by replacing air and water inside. Specifically, this type of float-sink type cage structure floats on the water surface by filling the inside with air, and starts the subsidence operation on the water surface by replacing the air inside with water.

浮沈式生簀枠構造体に関連する技術は従来から種々提案されており、例えば特許文献１には、浮沈式生簀枠構造体を構成し得る構造体に複数の部屋が形成され、複数の部屋に段階的に水又は空気を流入させる技術が開示されている。 Various techniques related to the floating and sinking cage frame structure have been conventionally proposed. For example, in Patent Document 1, a plurality of chambers are formed in a structure that can form a floating and sinking cage frame structure, and the plurality of chambers are formed. Techniques for inflowing water or air in stages are disclosed.

特許第５７５７４７７号公報Japanese Patent No. 5757477

ところで、空気と水との置換に応じて浮沈動作を実施するタイプの浮沈式生簀枠構造体は、空気の流入出口と、水の流入出口とを備える。このタイプの浮沈式生簀枠構造体では、内部の空気を、空気の流入出口を介して外部に排出するとともに水の流入出口から内部に水を流入させることで、空気を水に置換して沈下する。この際、空気の流入出口が水中に先行して沈下するように浮沈式生簀枠構造体が傾斜すると、内部の空気を排出し難くなるか又は排出できなくなる状況が生じ、沈下動作がスムーズに行われない場合がある。 By the way, the type of floating / sinking cage structure that performs the floating / sinking operation according to the replacement of air and water includes an air inflow port and a water inflow port. In this type of floating and sinking cage structure, the air inside is discharged to the outside through the air inflow port and the water flows in from the water inflow port to replace the air with water and settle. do. At this time, if the floating-sink type cage structure is tilted so that the air inflow port sinks in advance of the water, it becomes difficult or impossible to discharge the internal air, and the sinking operation is performed smoothly. It may not be possible.

そのため、空気の流入出口が最後のほうで水中に沈むように浮沈式生簀枠構造体の姿勢を制御することが望ましい。しかしながら、このような浮沈式生簀枠構造体の姿勢制御に着目した技術は、本件出願人の調査では、これまでに提案されていない。 Therefore, it is desirable to control the attitude of the floating / sinking cage structure so that the air inlet / outlet is submerged in the water toward the end. However, a technique focusing on the attitude control of such a floating and sinking cage frame structure has not been proposed so far in the investigation of the applicant.

本発明は上記事情を考慮してなされたものであり、沈下時の姿勢を所望の傾斜状態に簡易に制御することができる浮沈式生簀枠構造体、浮沈式生簀枠構造体の操作方法及び浮沈式構造体を提供することを目的とする。 The present invention has been made in consideration of the above circumstances, and an operation method and a floating / sinking of a floating / sinking cage frame structure and a floating / sinking cage frame structure capable of easily controlling the posture at the time of sinking to a desired inclined state. It is intended to provide a formula structure.

本発明に係る浮沈式生簀枠構造体は、複数の部屋に区画された中空状の枠部分を備え、前記複数の部屋はそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口と、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口と、を有し、前記複数の部屋には、前記水流入出口の開口面積の総計が互いに異なる２つの部屋が少なくとも含まれている。 The floating / sinking type cage frame structure according to the present invention includes a hollow frame portion divided into a plurality of rooms, and each of the plurality of rooms allows air to flow between the inside and the outside. Alternatively, it has a plurality of air inflow ports and one or a plurality of water inflow ports that allow water to flow between the inside and the outside, and the plurality of rooms have an opening area of the water inflow port. Includes at least two rooms with different sums.

本発明に係る浮沈式生簀枠構造体では、枠部分に設けられる複数の部屋に、水流入出口の開口面積の総計が互いに異なる２つの部屋が含まれる。水流入出口の開口面積の総計が互いに異なる２つの部屋では、水流入出口の開口面積の総計が大きい方の部屋に、水流入出口の開口面積の総計が小さい方の部屋よりも早く多くの水を流入させることが可能となる。そのため、２つの部屋にそれぞれ水を流入させた際、水流入出口の開口面積の総計が大きい方の部屋を、水流入出口の開口面積の総計が小さい方の部屋よりも先に水中に沈めることができる。ここで、このような沈下動作は、互いに異なる部屋の水流入出口の開口面積を異ならせるというシンプルな構造で実現される。そのため、この浮沈式生簀枠構造体では、先行させて沈下させたい部分に水流入出口の開口面積が大きい方の部屋を設定することで、浮沈式生簀枠構造体を所望の傾斜状態に簡易に制御しつつ、これを沈下させることが可能となる。
したがって、沈下時の姿勢を所望の傾斜状態に簡易に制御できる。 In the floating / sinking cage frame structure according to the present invention, the plurality of rooms provided in the frame portion include two rooms in which the total opening area of the water inflow port is different from each other. In two rooms where the total opening area of the water inflow port is different from each other, the room with the larger total opening area of the water inflow port has more water faster than the room with the smaller total opening area of the water inflow port. Can be inflowed. Therefore, when water is poured into each of the two rooms, the room with the larger total opening area of the water inflow outlet should be submerged in water before the room with the smaller total opening area of the water inflow outlet. Can be done. Here, such a subsidence operation is realized by a simple structure in which the opening areas of the water inflow ports of different rooms are different from each other. Therefore, in this floating / sinking cage frame structure, by setting a room having a larger opening area of the water inflow outlet in the portion to be subsided in advance, the floating / sinking cage frame structure can be easily brought into a desired inclined state. It is possible to sink this while controlling it.
Therefore, the posture at the time of sinking can be easily controlled to a desired tilted state.

本発明に係る浮沈式生簀枠構造体においては、前記２つの部屋のうちの前記水流入出口の開口面積の総計が大きい方の部屋の前記水流入出口の数が、前記２つの部屋のうちの前記水流入出口の開口面積の総計が小さい方の前記水流入出口の数よりも多くてもよい。 In the floating / sinking type cage structure according to the present invention, the number of the water inflow outlets in the room having the larger total opening area of the water inflow outlets among the two rooms is the number of the water inflow outlets in the two rooms. The total opening area of the water inflow port may be larger than the number of the smaller water inflow port.

この構成では、２つの部屋のうちの一方の部屋の水流入出口の開口面積の総計と、他方の部屋の水流入出口の開口面積の総計との差を大きくし易くなるため、素早く所望の傾斜状態に制御され得る浮沈式生簀枠構造体を設計し易くなる。すなわち、２つの部屋のうちの一方の部屋の水流入出口の数と、他方の部屋の水流入出口の数とが同じであると、水流入出口の形成スペースの制約等に起因して両者の開口面積の総計を大きく異ならせることが困難となる状況が生じ得る。これに対して、上記構成のように、一方の部屋の水流入出口の数を他方の部屋の水流入出口の数よりも多くすれば、一方の部屋の水流入出口の総計の開口面積と、他方の部屋の水流入出口の総計の開口面積との差を大きく確保し易くなる。 In this configuration, it is easy to increase the difference between the total opening area of the water inflow port of one of the two rooms and the total opening area of the water inflow port of the other room. It facilitates the design of floating and sinking frame structures that can be controlled by the state. That is, if the number of water inflow ports in one of the two rooms is the same as the number of water inflow ports in the other room, both of them are caused by the limitation of the space for forming the water inflow port and the like. There can be situations where it is difficult to make the total opening area significantly different. On the other hand, if the number of water inflow ports in one room is larger than the number of water inflow ports in the other room as in the above configuration, the total opening area of the water inflow ports in one room and It becomes easy to secure a large difference from the total opening area of the water inflow port of the other room.

この場合、前記開口面積の総計が大きい方の部屋に設けられる１つの前記水流入出口と、前記開口面積の総計が小さい方の部屋に設けられる１つの前記水流入出口とを比べたとき、両水流入出口が、同じ形状で且つ同じ開口面積でもよい。 In this case, when comparing the one water inflow port provided in the room having the larger total opening area and the one water inflow port provided in the room having the smaller total opening area, both The water inflow port may have the same shape and the same opening area.

この構成では、２つの部屋のうちの一方の部屋の水流入出口と他方の部屋の水流入出口との加工手順を共通化し得るか、又は、一方の部屋及び他方の部屋を形成する部品を共通化し得るため、生産効率を向上できる。 In this configuration, the processing procedure for the water inflow port of one of the two rooms and the water inflow port of the other room can be shared, or the parts forming one room and the other room are common. Therefore, the production efficiency can be improved.

また、本発明に係る浮沈式生簀枠構造体においては、前記２つの部屋のうちの前記水流入出口の開口面積の総計が大きい方の部屋の前記空気流入出口の開口面積の総計が、前記２つの部屋のうちの前記水流入出口の開口面積の総計が小さい方の部屋の前記空気流入出口の開口面積の総計よりも大きくてもよい。 Further, in the floating / sinking type cage structure according to the present invention, the total opening area of the air inflow port of the room having the larger total opening area of the water inflow port of the two rooms is the above 2. The total opening area of the water inflow port in one room may be larger than the total opening area of the air inflow port in the smaller room.

この構成では、水流入出口の開口面積の総計が大きい方の部屋の空気を効率的に水と置換させることが可能となり、水流入出口の開口面積の総計が大きい方の部屋に、水流入出口の開口面積が小さい方の部屋よりも、確実に早く多くの水を流入させることが可能となる。 With this configuration, it is possible to efficiently replace the air in the room with the larger total opening area of the water inflow outlet with water, and the water inflow outlet is placed in the room with the larger total opening area of the water inflow outlet. It is possible to make a large amount of water flow in more reliably and quickly than in the room with the smaller opening area.

また、本発明に係る浮沈式生簀枠構造体においては、前記２つの部屋のうちの前記水流入出口の開口面積の総計が大きい方の部屋の前記空気流入出口は、当該開口面積の総計が大きい方の部屋における、前記２つの部屋のうちの前記水流入出口の開口面積の総計が小さい方の部屋側の部分に設けられてもよい。 Further, in the floating / sinking type cage structure according to the present invention, the air inflow outlet of the room having the larger total opening area of the water inflow port of the two rooms has a larger total opening area. In one of the two rooms, the portion on the side of the room where the total opening area of the water inflow port is smaller may be provided.

この構成では、水流入出口の開口面積の総計が大きい方の部屋を先行させて沈下させる過程において、水流入出口の開口面積の総計が大きい方の部屋の空気流入出口の沈下が沈下過程中の後半に行われるようになるため、空気が排出され難くなる状況を効率的に回避できる。 In this configuration, in the process of sinking the room with the larger total opening area of the water inflow port in advance, the sinking of the air inflow port of the room with the larger total opening area of the water inflow port is during the sinking process. Since it will be performed in the latter half, it is possible to efficiently avoid the situation where it becomes difficult for air to be discharged.

また、本発明に係る浮沈式生簀枠構造体においては、前記枠部分が水面に平行な状態で浮いた際に、前記空気流入出口は上方に向けて開口し、前記水流入出口は下方に向けて開口してもよい。 Further, in the floating / sinking cage frame structure according to the present invention, when the frame portion floats in a state parallel to the water surface, the air inflow outlet opens upward and the water inflow outlet faces downward. May be opened.

この構成では、各部屋の空気流入出口が不所望に先行して沈下し空気が排出され難くなる状況を回避できるとともに、各部屋の内部に空気を流入させ易くなる。 With this configuration, it is possible to avoid a situation in which the air inflow outlet of each room sinks undesirably in advance and it becomes difficult for air to be discharged, and it becomes easy for air to flow into the inside of each room.

また、本発明に係る浮沈式生簀枠構造体においては、各前記部屋の前記空気流入出口が、共通の空気吐出ポンプに接続されてもよい。 Further, in the floating / sinking cage frame structure according to the present invention, the air inflow port of each room may be connected to a common air discharge pump.

この構成では、共通の空気吐出ポンプによって各部屋の内部に空気を流入させて水を排出することで、全体的な装置構成を複雑にすることなく浮沈式生簀枠構造体を浮上させることができる。 In this configuration, a common air discharge pump allows air to flow into each room and discharge water, so that the floating and sinking cage structure can be levitated without complicating the overall equipment configuration. ..

また、本発明に係る浮沈式生簀枠構造体においては、前記複数の部屋は、１つの小部屋と、前記小部屋の両端部間の長さよりも、その両端部間の長さが大きい２つの大部屋と、の３つの部屋でなり、各前記大部屋の前記水流入出口の開口面積の総計がそれぞれ、前記小部屋の前記水流入出口の開口面積の総計よりも大きくなっていてもよい。 Further, in the floating / sinking type cage frame structure according to the present invention, the plurality of rooms are one small room and two rooms having a length between both ends larger than the length between both ends of the small room. There are three rooms, a large room, and the total opening area of the water inflow port of each of the large rooms may be larger than the total opening area of the water inflow port of the small room.

この構成では、部屋数を比較的少なく抑えた簡易な構成で、浮沈式生簀枠構造体の沈下時の姿勢を所望の傾斜状態に制御し易くなる。 In this configuration, the number of rooms is relatively small, and the posture of the floating / sinking cage frame structure at the time of sinking can be easily controlled to a desired tilted state.

この場合、前記小部屋の前記水流入出口と、各前記大部屋の前記水流入出口とが、前記枠部分の中心を挟んで向き合ってもよい。 In this case, the water inflow outlet of the small room and the water inflow outlet of each of the large rooms may face each other with the center of the frame portion interposed therebetween.

この構成では、２つの大部屋の水流入出口が設けられた側をまず沈下させ、最後に小部屋の水流入出口が設けられた側を沈下させるように浮沈式生簀枠構造体の姿勢を制御できるようになり、浮沈式生簀枠構造体の沈下時の姿勢を所望の傾斜状態に制御し易くなる。 In this configuration, the posture of the floating and sinking cage structure is controlled so that the side provided with the water inflow outlets of the two large rooms is first sunk, and finally the side provided with the water inflow outlets of the small room is sunk. This makes it easier to control the posture of the floating / sinking cage frame structure at the time of sinking to a desired tilted state.

また、本発明に係る浮沈式生簀枠構造体の操作方法は、複数の部屋に区画された中空状の枠部分を備え、前記複数の部屋がそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口と、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口と、を有する浮沈式生簀枠構造体の操作方法であって、前記複数の部屋のうちの少なくとも１つの部屋への水の流入量が、他の部屋への水の流入量よりも大きくなるように、前記枠部分の内部に水を流入させる、浮沈式生簀枠構造体の操作方法である。 Further, the method of operating the floating / sinking type cage frame structure according to the present invention includes a hollow frame portion divided into a plurality of rooms, and each of the plurality of rooms allows air to flow between the inside and the outside. A method of operating a floating and sinking cage structure having one or more air inflow ports that allow water to flow between the inside and the outside and one or more water inflow ports that allow water to flow between the inside and the outside. A floating / sinking type in which water is allowed to flow into the frame portion so that the amount of water flowing into at least one of the plurality of rooms is larger than the amount of water flowing into the other room. This is a method of operating the raw cage structure.

本発明に係る浮沈式生簀枠構造体の操作方法では、水の流入量が大きくなる部屋を、これによりも水の流入量が小さくなる部屋よりも先に水中に沈めることができる。ここで、このような沈下動作は、互いに異なる部屋の水の流入量を異ならせるというシンプルな手法で実現される。そのため、浮沈式生簀枠構造体において先行させて沈下させたい部分に水の流入量が大きい方の部屋を設定することで、浮沈式生簀枠構造体を所望の傾斜状態に簡易に制御しつつ、これを沈下させることが可能となる。
したがって、浮沈式生簀枠構造体の沈下時の姿勢を所望の傾斜状態に簡易に制御できる。 In the method of operating the floating / sinking cage frame structure according to the present invention, a room having a large inflow of water can be submerged in water before a room having a small inflow of water. Here, such a subsidence operation is realized by a simple method of making the inflow amounts of water in different rooms different from each other. Therefore, by setting a room with a larger inflow of water in the part of the floating / sinking cage structure that is desired to be subsided in advance, the floating / sinking cage frame structure can be easily controlled to a desired inclined state while being easily controlled. It is possible to sink this.
Therefore, the posture of the floating / sinking cage frame structure at the time of sinking can be easily controlled to a desired inclined state.

また、本発明に係る浮沈式構造体は、複数の部屋に区画された中空状の枠部分を備え、前記複数の部屋はそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口と、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口と、を有し、前記複数の部屋には、前記水流入出口の開口面積の総計が互いに異なる２つの部屋が少なくとも含まれている。 Further, the floating / sinking structure according to the present invention includes a hollow frame portion divided into a plurality of rooms, and each of the plurality of rooms allows air to flow between the inside and the outside. Alternatively, it has a plurality of air inflow ports and one or a plurality of water inflow ports that allow water to flow between the inside and the outside, and the plurality of rooms have an opening area of the water inflow port. Includes at least two rooms with different sums.

本発明によれば、浮沈式生簀枠構造体の沈下時の姿勢を所望の傾斜状態に簡易に制御できる。 According to the present invention, the posture of the floating / sinking cage frame structure at the time of sinking can be easily controlled to a desired inclined state.

本発明の一実施の形態に係る浮沈式生簀枠構造体を備える生簀の斜視図である。It is a perspective view of the cage including the floating-sink type cage frame structure according to the embodiment of the present invention. 図１に示した浮沈式生簀枠構造体の上面図である。It is a top view of the floating and sinking type cage frame structure shown in FIG. 図２のＩＩＩ―ＩＩＩ線に沿う浮沈式生簀枠構造体の断面図である。It is sectional drawing of the floating and sinking type cage frame structure along the line III-III of FIG. 図２のＩＶ−ＩＶ線に沿う浮沈式生簀枠構造体の断面図である。It is sectional drawing of the floating and sinking type cage frame structure along the IV-IV line of FIG. 図１に示した浮沈式生簀枠構造体の沈下動作の一例を説明する図である。It is a figure explaining an example of the sinking operation of the floating-sink type cage frame structure shown in FIG.

以下、本発明の一実施の形態を詳細に説明する。 Hereinafter, one embodiment of the present invention will be described in detail.

図１は、本発明の一実施の形態に係る浮沈式生簀枠構造体１０を備える生簀１の斜視図であり、一例として生簀１を海域に設置した状態を示している。図１に示す生簀１は、水面に浮く状態で設置された浮沈式生簀枠構造体１０に網１００を吊り下げ、網１００によって魚介類の生息空間Ｓを形成している。 FIG. 1 is a perspective view of a cage 1 including a floating / sinking cage frame structure 10 according to an embodiment of the present invention, and shows a state in which the cage 1 is installed in a sea area as an example. In the biotope 1 shown in FIG. 1, a net 100 is suspended from a floating / sinking type cage frame structure 10 installed floating on the water surface, and the net 100 forms a habitat S for fish and shellfish.

図２は、浮沈式生簀枠構造体１０の上面図であり、図１及び図２に示すように、浮沈式生簀枠構造体１０は、中空状の内側枠部分２０と、内側枠部分２０を取り囲むように内側枠部分２０の外周に配置された中空状の外側枠部分３０と、を備えている。 FIG. 2 is a top view of the floating / sinking cage frame structure 10. As shown in FIGS. 1 and 2, the floating / sinking cage frame structure 10 includes a hollow inner frame portion 20 and an inner frame portion 20. It includes a hollow outer frame portion 30 arranged on the outer periphery of the inner frame portion 20 so as to surround the inner frame portion 20.

内側枠部分２０及び外側枠部分３０は、これらに跨がるように設けられた複数の連結部材４０によって互いに結合されている。 The inner frame portion 20 and the outer frame portion 30 are connected to each other by a plurality of connecting members 40 provided so as to straddle them.

内側枠部分２０は、その内部に設けられた複数の隔壁５０によって複数の部屋に区画される。具体的に本例では、内側枠部分２０が、内側小部屋２１、内側第１大部屋２２及び内側第２大部屋２３の３つの部屋に区画されている。 The inner frame portion 20 is divided into a plurality of rooms by a plurality of partition walls 50 provided inside the inner frame portion 20. Specifically, in this example, the inner frame portion 20 is divided into three rooms, an inner small room 21, an inner first large room 22, and an inner second large room 23.

内側枠部分２０の形状は一例として円環状であり、内側第１大部屋２２及び内側第２大部屋２３それぞれの周方向端部間の長さは、内側小部屋２１の周方向両端部間の長さよりも大きい。また、内側第１大部屋２２及び内側第２大部屋２３のサイズは互いに同一になっている。 The shape of the inner frame portion 20 is an annular shape as an example, and the length between the circumferential ends of the inner first large room 22 and the inner second large room 23 is between the circumferential ends of the inner small room 21. Greater than length. Further, the sizes of the inner first large room 22 and the inner second large room 23 are the same as each other.

外側枠部分３０も、その内部に設けられた複数の隔壁５０によって複数の部屋に区画されている。具体的に本例では、外側枠部分３０が、外側小部屋３１、外側第１大部屋３２及び外側第２大部屋３３の３つの部屋に区画されている。 The outer frame portion 30 is also divided into a plurality of rooms by a plurality of partition walls 50 provided inside the outer frame portion 30. Specifically, in this example, the outer frame portion 30 is divided into three rooms: an outer small room 31, an outer first large room 32, and an outer second large room 33.

外側枠部分３０の形状も一例として円環状であり、外側第１大部屋３２及び外側第２大部屋３３それぞれの周方向端部間の長さは、外側小部屋３１の周方向両端部間の長さよりも大きい。また、外側第１大部屋３２及び外側第２大部屋３３のサイズは互いに同一になっている。 The shape of the outer frame portion 30 is also an annular shape as an example, and the length between the circumferential ends of the outer first large room 32 and the outer second large room 33 is between the circumferential ends of the outer small room 31. Greater than length. Further, the sizes of the outer first large room 32 and the outer second large room 33 are the same as each other.

外側小部屋３１は、内側小部屋２１と径方向で向き合うように配置され、外側小部屋３１の中心角は、内側小部屋２１の中心角と同一になっている。外側第１大部屋３２は、内側第１大部屋２２と径方向で向き合うように配置され、外側第１大部屋３２の中心角は、内側第１大部屋２２の中心角と同一になっている。外側第２大部屋３３は、内側第２大部屋２３と径方向で向き合うように配置され、外側第２大部屋３３の中心角は、内側第２大部屋２３の中心角と同一になっている。 The outer small room 31 is arranged so as to face the inner small room 21 in the radial direction, and the central angle of the outer small room 31 is the same as the central angle of the inner small room 21. The outer first large room 32 is arranged so as to face the inner first large room 22 in the radial direction, and the central angle of the outer first large room 32 is the same as the central angle of the inner first large room 22. .. The outer second large room 33 is arranged so as to face the inner second large room 23 in the radial direction, and the central angle of the outer second large room 33 is the same as the central angle of the inner second large room 23. ..

本実施の形態における浮沈式生簀枠構造体１０は、上述したように内側枠部分２０と外側枠部分３０とを備えるが、本発明はこの態様に限られるものではなく、浮沈式生簀枠構造体１０は、例えば一つの枠部分で構成されてもよいし、３つ以上の枠部分で構成されてもよい。 The floating / sinking cage frame structure 10 in the present embodiment includes an inner frame portion 20 and an outer frame portion 30 as described above, but the present invention is not limited to this embodiment, and the floating / sinking cage frame structure is not limited to this aspect. 10 may be composed of, for example, one frame portion, or may be composed of three or more frame portions.

また、内側枠部分２０及び外側枠部分３０はそれぞれ円環状であるが、このような形状も特に限られるものではなく、例えば矩形枠状等でもよい。また、内側枠部分２０及び外側枠部分３０はそれぞれ、３つの部屋に区画されるが、部屋の数は特に限られるものではなく、例えば２つの部屋に区切られてもよいし、４つの部屋に区切られてもよい。 Further, the inner frame portion 20 and the outer frame portion 30 are each annular, but such a shape is not particularly limited, and may be, for example, a rectangular frame shape or the like. Further, the inner frame portion 20 and the outer frame portion 30 are each divided into three rooms, but the number of rooms is not particularly limited, and may be divided into, for example, two rooms or four rooms. It may be separated.

図２を参照し、内側枠部分２０の内側小部屋２１、内側第１大部屋２２及び内側第２大部屋２３はそれぞれ、内部と外部との間の空気の通流を許容する空気流入出口２１ａ，２２ａ，２３ａと、内部と外部との間の水の通流を許容する水流入出口２１ｗ，２２ｗ，２３ｗと、を有している。 With reference to FIG. 2, the inner small room 21, the inner first large room 22, and the inner second large room 23 of the inner frame portion 20 are each an air inflow port 21a that allows air to flow between the inside and the outside. , 22a, 23a, and water inflow outlets 21w, 22w, 23w that allow the passage of water between the inside and the outside.

図３は、図２のＩＩＩ―ＩＩＩ線に沿う浮沈式生簀枠構造体１０の断面図であって、詳しくは内側枠部分２０の断面図である。また、図４は、図２のＩＶ−ＩＶ線に沿う浮沈式生簀枠構造体１０の断面図であり、詳しくは内側枠部分２０の断面図である。 FIG. 3 is a cross-sectional view of the floating / sinking cage frame structure 10 along the lines III-III of FIG. 2, and more specifically, is a cross-sectional view of the inner frame portion 20. Further, FIG. 4 is a cross-sectional view of the floating / sinking cage frame structure 10 along the line IV-IV of FIG. 2, and more specifically, is a cross-sectional view of the inner frame portion 20.

図３及び図４に示すように、内側枠部分２０が水面に平行な状態で浮いた際、内側小部屋２１の空気流入出口２１ａ、内側第１大部屋２２の空気流入出口２２ａ及び内側第２大部屋２３の空気流入出口２３ａはそれぞれ、上方に向けて開口する。また、内側枠部分２０が水面に平行な状態で浮いた際、内側小部屋２１の水流入出口２１ｗ、内側第１大部屋２２の水流入出口２２ｗ及び内側第２大部屋２３の水流入出口２３ｗはそれぞれ、下方に向けて開口する。 As shown in FIGS. 3 and 4, when the inner frame portion 20 floats in a state parallel to the water surface, the air inflow outlet 21a of the inner small room 21 and the air inflow outlet 22a and the inner second of the inner first large room 22 Each of the air inflow outlets 23a of the large room 23 opens upward. Further, when the inner frame portion 20 floats in a state parallel to the water surface, the water inflow outlet 21w of the inner small room 21, the water inflow outlet 22w of the inner first large room 22, and the water inflow outlet 23w of the inner second large room 23 Each opens downward.

本実施の形態では、内側小部屋２１が、２つの空気流入出口２１ａを有し、内側第１大部屋２２が、１つの空気流入出口２２ａを有し、内側第２大部屋２３が、１つの空気流入出口２３ａを有する。また、内側小部屋２１は、１つの水流入出口２１ｗを有し、内側第１大部屋２２は、２つの水流入出口２２ｗを有し、内側第２大部屋２３は、２つの水流入出口２３ｗを有する。 In the present embodiment, the inner small room 21 has two air inflow outlets 21a, the inner first large room 22 has one air inflow outlet 22a, and the inner second large room 23 has one. It has an air inflow port 23a. Further, the inner small room 21 has one water inflow outlet 21w, the inner first large room 22 has two water inflow outlets 22w, and the inner second large room 23 has two water inflow outlets 23w. Has.

ここで、内側小部屋２１に設けられる１つの水流入出口２１ｗと、内側第１大部屋２２に設けられる１つの水流入出口２２ｗと、内側第２大部屋２３に設けられる１つの水流入出口２３ｗとを見たとき（比べたとき）、これら水流入出口２１ｗ、水流入出口２２ｗ及び水流入出口２３ｗは、同じ形状で且つ同じ開口面積になっている。 Here, one water inflow outlet 21w provided in the inner small room 21, one water inflow outlet 22w provided in the inner first large room 22, and one water inflow outlet 23w provided in the inner second large room 23. When viewed (compared), the water inflow outlet 21w, the water inflow outlet 22w, and the water inflow outlet 23w have the same shape and the same opening area.

したがって、本実施の形態では、内側第１大部屋２２に設けられる水流入出口２２ｗの開口面積の総計が、内側小部屋２１に設けられる水流入出口２１ｗの開口面積の総計よりも大きく、且つ、内側第２大部屋２３に設けられる水流入出口２３ｗの開口面積の総計が、内側小部屋２１に設けられる水流入出口２１ｗの開口面積の総計よりも大きくなっている。すなわち、浮沈式生簀枠構造体１０では、内側枠部分２０に設けられる複数の部屋に、水流入出口の開口面積の総計が互いに異なる２つの部屋（内側小部屋２１と内側第１大部屋２２との組、及び、内側小部屋２１と内側第２大部屋２３との組）が少なくとも含まれていることになる。 Therefore, in the present embodiment, the total opening area of the water inflow outlet 22w provided in the inner first large room 22 is larger than the total opening area of the water inflow outlet 21w provided in the inner small room 21. The total opening area of the water inflow port 23w provided in the inner second large room 23 is larger than the total opening area of the water inflow port 21w provided in the inner small room 21. That is, in the floating / sinking cage frame structure 10, two rooms (inner small room 21 and inner first large room 22) having different total opening areas of water inflow / outlets are provided in a plurality of rooms provided in the inner frame portion 20. And the set of the inner small room 21 and the inner second large room 23) are included at least.

各部屋２１〜２３は、内部の空気を空気流入出口２１ａ，２２ａ，２３ａから外部に流出させるとともに、水流入出口２１ｗ，２２ｗ，２３ｗから水を内部に流入させることで、水面に浮いた状態から水面に対し沈下することができる。一方で、外部の空気を空気流入出口２１ａ，２２ａ，２３ａから内部に流入させるとともに、水流入出口２１ｗ，２２ｗ，２３ｗから水を外部に排出することで、水面に対し沈下した状態から浮上することができる。 Each room 21 to 23 is in a state of floating on the water surface by allowing the internal air to flow out from the air inflow ports 21a, 22a, 23a and the water to flow in from the water inflow ports 21w, 22w, 23w. Can sink against the surface of the water. On the other hand, by letting the outside air flow into the inside through the air inflow ports 21a, 22a, 23a and discharging the water from the water inflow ports 21w, 22w, 23w to the outside, the water rises from the subsidence state with respect to the water surface. Can be done.

内側第１大部屋２２に設けられる水流入出口２２ｗの開口面積の総計が、内側小部屋２１に設けられる水流入出口２１ｗの開口面積の総計よりも大きい場合、内側第１大部屋２２に、内側小部屋２１よりも早く多くの水を流入させることが可能となる。これにより、浮沈式生簀枠構造体１０では、内側第１大部屋２２を、内側小部屋２１よりも先に沈めることができる。内側小部屋２１と内側第２大部屋２３との関係においても同様のことが当てはまる。 When the total opening area of the water inflow outlet 22w provided in the inner first large room 22 is larger than the total opening area of the water inflow outlet 21w provided in the inner small room 21, the inner first large room 22 is inside. It is possible to allow more water to flow in faster than the small room 21. As a result, in the floating / sinking cage frame structure 10, the inner first large room 22 can be sunk before the inner small room 21. The same applies to the relationship between the inner small room 21 and the inner second large room 23.

また、本実施の形態では、内側第１大部屋２２に設けられる水流入出口２２ｗの開口面積の総計と、内側第２大部屋２３に設けられる水流入出口２３ｗの開口面積の総計とが同じである。また、内側第１大部屋２２のサイズと内側第２大部屋２３のサイズとが互いに同一である。この場合、内側第１大部屋２２と内側第２大部屋２３とが沈下する速度のばらつきが抑えられることで、内側第１大部屋２２と内側第２大部屋２３との沈下タイミングを揃えることができ、沈下時の浮沈式生簀枠構造体１０の姿勢を所望の状態に安定的に制御することが可能となる。 Further, in the present embodiment, the total opening area of the water inflow outlet 22w provided in the inner first large room 22 and the total opening area of the water inflow outlet 23w provided in the inner second large room 23 are the same. be. Further, the size of the inner first large room 22 and the size of the inner second large room 23 are the same as each other. In this case, by suppressing the variation in the sinking speed between the inner first large room 22 and the inner second large room 23, the sinking timings of the inner first large room 22 and the inner second large room 23 can be aligned. It is possible to stably control the posture of the floating / sinking cage frame structure 10 at the time of subsidence to a desired state.

また、本実施の形態では、上述したように内側小部屋２１が、２つの空気流入出口２１ａを有し、内側第１大部屋２２が、１つの空気流入出口２２ａを有し、内側第２大部屋２３が、１つの空気流入出口２３ａを有する。ただし、内側第１大部屋２２に設けられる空気流入出口２２ａの開口面積の総計は、内側小部屋２１に設けられる空気流入出口２１ａの総計よりも大きく、内側第２大部屋２３に設けられる空気流入出口２３ａの開口面積の総計は、内側小部屋２１に設けられる空気流入出口２１ａの総計よりも大きい。この場合、内側第１大部屋２２及び内側第２大部屋２３は、内側小部屋２１よりも効率的に空気を流出させることが可能となるため、内側第１大部屋２２及び内側第２大部屋２３を確実に内側小部屋２１よりも先に沈下させることが可能となる。 Further, in the present embodiment, as described above, the inner small room 21 has two air inflow outlets 21a, the inner first large room 22 has one air inflow outlet 22a, and the inner second large room 22. The room 23 has one air inflow port 23a. However, the total opening area of the air inflow outlet 22a provided in the inner first large room 22 is larger than the total of the air inflow outlet 21a provided in the inner small room 21, and the total air inflow provided in the inner second large room 23. The total opening area of the outlet 23a is larger than the total of the air inflow outlet 21a provided in the inner small room 21. In this case, since the inner first large room 22 and the inner second large room 23 can allow air to flow out more efficiently than the inner small room 21, the inner first large room 22 and the inner second large room 22 can flow out air more efficiently. It is possible to surely sink the 23 before the inner small room 21.

以下、空気流入出口２１ａ，２２ａ，２３ａ及び水流入出口２１ｗ，２２ｗ，２３ｗの構成について詳しく説明する。 Hereinafter, the configurations of the air inflow ports 21a, 22a, 23a and the water inflow ports 21w, 22w, 23w will be described in detail.

図２に示すように、内側小部屋２１の２つの空気流入出口２１ａのうちの一方は、内側小部屋２１の周方向中央に対して周方向一方側（図中、反時計回り側）に離れて設けられ、２つの空気流入出口２１ａのうちの他方は、内側小部屋２１の周方向中央に対して周方向他方側（図中、時計回り側）に離れて設けられている。詳しくは、２つの空気流入出口２１ａのうちの一方は、内側小部屋２１と内側第１大部屋２２とを仕切る隔壁５０から、内側小部屋２１の周方向全長の約１／４だけ周方向一方側に離れた位置に設けられ、他方は、内側小部屋２１と内側第２大部屋２３とを仕切る隔壁５０から、内側小部屋２１の周方向長さの約１／４だけ周方向他方側に離れた位置に設けられている。ただし、空気流入出口２１ａの位置は、本実施の形態の態様に限られるものではない。 As shown in FIG. 2, one of the two air inflow outlets 21a of the inner chamber 21 is separated from the circumferential center of the inner chamber 21 on one side in the circumferential direction (counterclockwise side in the drawing). The other of the two air inflow outlets 21a is provided so as to be separated from the center of the inner chamber 21 in the circumferential direction on the other side in the circumferential direction (clockwise in the drawing). Specifically, one of the two air inflow outlets 21a is circumferentially one of the inner small chambers 21 by about 1/4 of the total circumferential length from the partition wall 50 that separates the inner small chamber 21 and the inner first large chamber 22. The other side is provided at a position away from the side, and the other side is on the other side in the circumferential direction by about 1/4 of the circumferential length of the inner small room 21 from the partition wall 50 that separates the inner small room 21 and the inner second large room 23. It is provided at a distant position. However, the position of the air inflow port 21a is not limited to the embodiment of the present embodiment.

２つの空気流入出口２１ａはそれぞれ、図１及び図３に示すように空気配管６０を介して空気吐出ポンプ８０（図１参照）に接続され、空気吐出ポンプ８０の駆動に応じて、つまり空気吐出ポンプ８０からの空気の吐出に応じて、空気を内側小部屋２１に流入させる。ここで、空気配管６０と空気吐出ポンプ８０とは開閉バルブ６５を介して接続されている。内側小部屋２１に空気を流入させる際には、開閉バルブ６５が開かれる。また、内側小部屋２１に空気を充填することにより、内側小部屋２１が水面に浮いた状態を維持する場合には、開閉バルブ６５が閉じられる。そして、水面に浮いた状態の内側小部屋２１を沈下させる際には、開閉バルブ６５が開かれる。このとき、内側小部屋２１の空気は、空気流入出口２１ａから空気配管６０及び開閉バルブ６５を介して外部に排出される。これに伴い、水流入出口２１ｗから内側小部屋２１に水が流入することで、沈下が行われる。空気配管６０は、例えば直径１５ｍｍの流路断面積を有してもよいが、このようなサイズは特に限られるものではない。 The two air inflow outlets 21a are connected to the air discharge pump 80 (see FIG. 1) via the air pipe 60, respectively, as shown in FIGS. 1 and 3, respectively, and in response to the drive of the air discharge pump 80, that is, air discharge. Air is made to flow into the inner small chamber 21 according to the discharge of air from the pump 80. Here, the air pipe 60 and the air discharge pump 80 are connected via an on-off valve 65. When air is introduced into the inner small room 21, the on-off valve 65 is opened. Further, when the inner small chamber 21 is filled with air to keep the inner small chamber 21 floating on the water surface, the opening / closing valve 65 is closed. Then, when the inner small room 21 floating on the water surface is subsided, the open / close valve 65 is opened. At this time, the air in the inner small room 21 is discharged to the outside from the air inflow port 21a via the air pipe 60 and the on-off valve 65. Along with this, water flows into the inner small room 21 from the water inflow outlet 21w, so that subsidence is performed. The air pipe 60 may have, for example, a flow path cross-sectional area having a diameter of 15 mm, but such a size is not particularly limited.

また、内側小部屋２１の水流入出口２１ｗは、図２に示すように内側小部屋２１の周方向中央又は中央近傍に設けられているが、その位置は特に限られるものではない。図３に示すように、水流入出口２１ｗには流水ダクト２１ｄが垂れ下がるように設けられており、この流水ダクト２１ｄは水を通流させる。このような流水ダクト２１ｄが設けられることで、浮沈式生簀枠構造体１０の沈下時の傾斜によって水流入出口２１ｗが水面から離れてしまった場合であっても、流水ダクト２１ｄの開口端が水中に位置し得ることで、水をスムーズに流入させ得る。 Further, the water inflow outlet 21w of the inner small chamber 21 is provided at the center or the vicinity of the center in the circumferential direction as shown in FIG. 2, but the position thereof is not particularly limited. As shown in FIG. 3, a water flow duct 21d is provided so as to hang down from the water inflow outlet 21w, and the water flow duct 21d allows water to flow through the water flow duct 21d. By providing such a flowing water duct 21d, even if the water inflow outlet 21w is separated from the water surface due to the inclination of the floating / sinking cage frame structure 10 at the time of subsidence, the open end of the flowing water duct 21d is underwater. By being able to be located in, water can flow in smoothly.

内側第１大部屋２２の空気流入出口２２ａは、内側第１大部屋２２における内側小部屋２１側の部分に設けられており、詳しくは、内側第１大部屋２２の周方向中央よりも内側小部屋２１側であって、内側小部屋２１と内側第１大部屋２２とを仕切る隔壁５０に近接する位置に設けられている。より詳しくは、空気流入出口２２ａは、内側小部屋２１と内側第１大部屋２２とを仕切る隔壁５０から、内側第１大部屋２２の周方向全長の１／１０以内の位置に設けられている。 The air inflow outlet 22a of the inner first large room 22 is provided in the portion of the inner first large room 22 on the inner small room 21 side, and more specifically, the inner first large room 22 is smaller than the center in the circumferential direction. It is provided on the room 21 side at a position close to the partition wall 50 that separates the inner small room 21 and the inner first large room 22. More specifically, the air inflow outlet 22a is provided at a position within 1/10 of the total length in the circumferential direction of the inner first large room 22 from the partition wall 50 that separates the inner small room 21 and the inner first large room 22. ..

そして、空気流入出口２２ａも、図３に示すように空気配管６０を介して空気吐出ポンプ８０に接続される。ここで、空気流入出口２２ａに接続される空気配管６０と空気吐出ポンプ８０との間にも開閉バルブ６５が介在する。内側第１大部屋２２を浮沈させる際の開閉バルブ６５の動作は、上述の内側小部屋２１の場合と同様である。空気流入出口２２ａに接続される空気配管６０は、例えば直径４０ｍｍの流路断面積を有してもよいが、このようなサイズは特に限られるものではない。 The air inflow port 22a is also connected to the air discharge pump 80 via the air pipe 60 as shown in FIG. Here, the on-off valve 65 is also interposed between the air pipe 60 connected to the air inflow outlet 22a and the air discharge pump 80. The operation of the opening / closing valve 65 when the inner first large room 22 is floated and lowered is the same as the case of the inner small room 21 described above. The air pipe 60 connected to the air inflow port 22a may have, for example, a flow path cross-sectional area having a diameter of 40 mm, but such a size is not particularly limited.

また、内側第１大部屋２２の２つの水流入出口２２ｗは、内側第１大部屋２２と内側第２大部屋２３とを仕切る隔壁５０に近接する位置に設けられている。詳しくは、内側第１大部屋２２の２つの水流入出口２２ｗは、内側小部屋２１の水流入出口２１ｗと内側枠部分２０の中心を挟んで向き合うように設けられている。ここで、本実施の形態においては、内側枠部分２０の中心を挟んで向き合うという状態を、以下のように定義する。
内側枠部分２０に設けられる構成Ａ（水流入出口２１ｗ等）から内側枠部分２０の中心を通って内側枠部分２０に交差する径方向の直線を引き、この直線を内側枠部分２０の中心を軸に周方向に±３０度回転させた範囲に、構成Ｂ（水流入出口２２ｗ等）が位置する状態。この状態を、構成Ａと構成Ｂとが内側枠部分２０の中心を挟んで向き合うという状態と定義する。 Further, the two water inflow outlets 22w of the inner first large room 22 are provided at positions close to the partition wall 50 that separates the inner first large room 22 and the inner second large room 23. Specifically, the two water inflow outlets 22w of the inner first large room 22 are provided so as to face each other with the water inflow outlet 21w of the inner small room 21 and the center of the inner frame portion 20. Here, in the present embodiment, the state of facing each other with the center of the inner frame portion 20 sandwiched is defined as follows.
A radial straight line that passes through the center of the inner frame portion 20 and intersects the inner frame portion 20 is drawn from the configuration A (water inflow outlet 21w, etc.) provided in the inner frame portion 20, and this straight line is drawn from the center of the inner frame portion 20. A state in which configuration B (water inflow outlet 22w, etc.) is located within a range rotated by ± 30 degrees in the circumferential direction around the shaft. This state is defined as a state in which the configuration A and the configuration B face each other with the center of the inner frame portion 20 in between.

また、図３に示すように、内側第１大部屋２２の２つの水流入出口２２ｗにもそれぞれ、流水ダクト２２ｄが垂れ下がるように設けられている。 Further, as shown in FIG. 3, water flow ducts 22d are provided so as to hang down from each of the two water inflow outlets 22w of the inner first large room 22.

内側第２大部屋２３の空気流入出口２３ａ及び水流入出口２３ｗはそれぞれ、内側第１大部屋２２と内側第２大部屋２３とを仕切る隔壁５０と内側枠部分２０の中心とを通る直線に関して、内側第１大部屋２２の空気流入出口２２ａ及び水流入出口２２ｗと線対称となるように位置する以外は、内側第１大部屋２２の空気流入出口２２ａ及び水流入出口２２ｗと同様の構成である。そのため、内側第２大部屋２３の空気流入出口２３ａ及び水流入出口２３ｗのこれ以上の詳しい説明は省略する。 The air inflow outlet 23a and the water inflow outlet 23w of the inner second large room 23 are related to a straight line passing through the partition wall 50 and the center of the inner frame portion 20 that separate the inner first large room 22 and the inner second large room 23, respectively. It has the same configuration as the air inflow outlet 22a and the water inflow outlet 22w of the inner first large room 22 except that it is located so as to be line-symmetric with the air inflow outlet 22a and the water inflow outlet 22w of the inner first large room 22. .. Therefore, further detailed description of the air inflow port 23a and the water inflow port 23w of the inner second large room 23 will be omitted.

一方で、図２に示すように、外側枠部分３０の外側小部屋３１、外側第１大部屋３２及び外側第２大部屋３３もそれぞれ、内部と外部との間の空気の通流を許容する空気流入出口３１ａ，３２ａ，３３ａと、内部と外部との間の水の通流を許容する水流入出口３１ｗ，３２ｗ，３３ｗと、を有している。 On the other hand, as shown in FIG. 2, the outer small room 31, the outer first large room 32, and the outer second large room 33 of the outer frame portion 30 also allow air to flow between the inside and the outside, respectively. It has air inflow ports 31a, 32a, 33a, and water inflow ports 31w, 32w, 33w that allow water to flow between the inside and the outside.

外側枠部分３０が水面に平行な状態で浮いた際、外側小部屋３１の空気流入出口３１ａ、外側第１大部屋３２の空気流入出口３２ａ及び外側第２大部屋３３の空気流入出口３３ａもそれぞれ、上方に向けて開口する。また、外側枠部分３０が水面に平行な状態で浮いた際、外側小部屋３１の水流入出口３１ｗ、外側第１大部屋３２の水流入出口３２ｗ及び外側第２大部屋３３の水流入出口３３ｗもそれぞれ、下方に向けて開口する。 When the outer frame portion 30 floats in a state parallel to the water surface, the air inflow port 31a of the outer small room 31, the air inflow port 32a of the outer first large room 32, and the air inflow port 33a of the outer second large room 33 are also respectively. , Opens upwards. Further, when the outer frame portion 30 floats in a state parallel to the water surface, the water inflow outlet 31w of the outer small room 31, the water inflow outlet 32w of the outer first large room 32, and the water inflow outlet 33w of the outer second large room 33 Each also opens downward.

内側小部屋２１の場合と同様であるが、本実施の形態では、外側小部屋３１が、２つの空気流入出口３１ａを有し、外側第１大部屋３２が、１つの空気流入出口３２ａを有し、外側第２大部屋３３が、１つの空気流入出口３３ａを有する。また、外側小部屋３１は、１つの水流入出口３１ｗを有し、外側第１大部屋３２は、２つの水流入出口３２ｗを有し、外側第２大部屋３３は、２つの水流入出口３３ｗを有する。 Similar to the case of the inner small room 21, but in the present embodiment, the outer small room 31 has two air inflow ports 31a, and the outer first large room 32 has one air inflow port 32a. However, the outer second large room 33 has one air inflow port 33a. Further, the outer small room 31 has one water inflow outlet 31w, the outer first large room 32 has two water inflow outlets 32w, and the outer second large room 33 has two water inflow outlets 33w. Has.

そして、外側小部屋３１に設けられる１つの水流入出口３１ｗと、外側第１大部屋３２に設けられる１つの水流入出口３２ｗと、外側第２大部屋３３に設けられる１つの水流入出口３３ｗとを見たとき、これら水流入出口３１ｗ、水流入出口３２ｗ及び水流入出口３３ｗは、同じ形状で且つ同じ開口面積になっている。 Then, one water inflow outlet 31w provided in the outer small room 31, one water inflow outlet 32w provided in the outer first large room 32, and one water inflow outlet 33w provided in the outer second large room 33. When viewed, the water inflow port 31w, the water inflow port 32w, and the water inflow port 33w have the same shape and the same opening area.

したがって、外側第１大部屋３２に設けられる水流入出口３２ｗの開口面積の総計は、外側小部屋３１に設けられる水流入出口３１ｗの開口面積の総計よりも大きく、且つ、外側第２大部屋３３に設けられる水流入出口３３ｗの開口面積の総計は、外側小部屋３１に設けられる水流入出口３１ｗの開口面積の総計よりも大きくなる。これにより、浮沈式生簀枠構造体１０では、外側第１大部屋３２及び外側第２大部屋３３についても、外側小部屋３１よりも先に沈めることができる。 Therefore, the total opening area of the water inflow outlet 32w provided in the outer first large room 32 is larger than the total opening area of the water inflow outlet 31w provided in the outer small room 31, and the total opening area of the outer second large room 33 is larger. The total opening area of the water inflow port 33w provided in the outer small room 31 is larger than the total opening area of the water inflow port 31w provided in the outer small room 31. As a result, in the floating / sinking cage frame structure 10, the outer first large room 32 and the outer second large room 33 can also be sunk before the outer small room 31.

また、外側枠部分３０においても、外側第１大部屋３２に設けられる空気流入出口３２ａの開口面積の総計は、外側小部屋３１に設けられる空気流入出口３１ａの総計よりも大きく、外側第２大部屋３３に設けられる空気流入出口３３ａの開口面積の総計は、外側小部屋３１に設けられる空気流入出口３１ａの総計よりも大きい。これにより、外側第１大部屋３２及び外側第２大部屋３３を、確実に外側小部屋３１よりも先に沈めることが可能となっている。 Further, also in the outer frame portion 30, the total opening area of the air inflow port 32a provided in the outer first large room 32 is larger than the total of the air inflow port 31a provided in the outer small room 31, and the outer second large room 31 is also provided. The total opening area of the air inflow port 33a provided in the room 33 is larger than the total of the air inflow port 31a provided in the outer small room 31. As a result, the outer first large room 32 and the outer second large room 33 can be surely submerged before the outer small room 31.

外側枠部分３０における空気流入出口３１ａ，３２ａ，３３ａ及び水流入出口３１ｗ，３２ｗ，３３ｗの配置関係やサイズ、空気吐出ポンプ８０及び開閉バルブ６５との接続態様は、内側枠部分２０側の空気流入出口２１ａ，２２ａ，２３ａ及び水流入出口２１ｗ，２２ｗ，２３ｗと同様であるため、これ以上の詳しい説明は省略する。 The arrangement and size of the air inflow ports 31a, 32a, 33a and the water inflow ports 31w, 32w, 33w in the outer frame portion 30, and the connection mode with the air discharge pump 80 and the on-off valve 65 are as follows. Since it is the same as the outlets 21a, 22a, 23a and the water inflow outlets 21w, 22w, 23w, further detailed description will be omitted.

なお、図１を参照し、本実施の形態における外側枠部分３０には、外側第１大部屋３２及び外側第２大部屋３３に跨がるように配置された鎖９０が取り付けられている。鎖９０は、外側第１大部屋３２と外側第２大部屋３３との境界から±９０度の範囲に円弧状に延びている。鎖９０は、外側枠部分３０に例えば網等で括り付けられることで外側枠部分３０に取り付けられる。このような鎖９０は、浮沈式生簀枠構造体１０を外側第１大部屋３２及び外側第２大部屋３３側（内側第１大部屋２２及び内側第２大部屋２３側）から沈下させる際の沈下力を補助する。特に、鎖９０は設置される海域の潮流に合わせて設けられており、潮流のある状況において、浮沈式生簀枠構造体１０の姿勢を適正に制御するために設けられている。ただし、このような鎖９０は設けられてなくてもよいし、その取り付け範囲等も特に限られるものではない。 In addition, referring to FIG. 1, a chain 90 arranged so as to straddle the outer first large room 32 and the outer second large room 33 is attached to the outer frame portion 30 in the present embodiment. The chain 90 extends in an arc shape in a range of ± 90 degrees from the boundary between the outer first large room 32 and the outer second large room 33. The chain 90 is attached to the outer frame portion 30 by being tied to the outer frame portion 30 with, for example, a net or the like. Such a chain 90 is used when the floating / sinking cage frame structure 10 is subsided from the outer first large room 32 and the outer second large room 33 side (inner first large room 22 and inner second large room 23 side). Assists subsidence. In particular, the chain 90 is provided according to the tidal current in the sea area where it is installed, and is provided to appropriately control the posture of the floating / sinking cage frame structure 10 in a situation where there is a tidal current. However, such a chain 90 may not be provided, and its attachment range and the like are not particularly limited.

空気吐出ポンプ８０は、内側枠部分２０における空気流入出口２１ａ，２２ａ，２３ａ及び外側枠部分３０における空気流入出口３１ａ，３２ａ，３３ａのそれぞれに各別の空気配管６０を介して接続されている。本実施の形態における空気吐出ポンプ８０は、内側枠部分２０における空気流入出口２１ａ，２２ａ，２３ａ及び外側枠部分３０における空気流入出口３１ａ，３２ａ，３３ａのそれぞれに空気を同時に供給することが可能となっている。なお、本実施の形態では、一例として、空気流入出口２１ａ，２２ａ，２３ａ及び外側枠部分３０における空気流入出口３１ａ，３２ａ，３３ａのそれぞれに接続された空気配管６０が空気吐出ポンプ８０側で合流して、合流部分が空気吐出ポンプ８０に接続され、合流部分に開閉バルブ６５が設けられている。ただし、この態様は一例であり、開閉バルブ６５の構成はこれに限られるものではない。例えば、開閉バルブ６５は、各空気配管６０上に設けられてもよい。 The air discharge pump 80 is connected to each of the air inflow ports 21a, 22a, 23a in the inner frame portion 20 and the air inflow ports 31a, 32a, 33a in the outer frame portion 30 via separate air pipes 60. The air discharge pump 80 in the present embodiment can simultaneously supply air to the air inflow ports 21a, 22a, 23a in the inner frame portion 20 and the air inflow ports 31a, 32a, 33a in the outer frame portion 30. It has become. In the present embodiment, as an example, the air pipes 60 connected to the air inflow ports 21a, 22a, 23a and the air inflow ports 31a, 32a, 33a in the outer frame portion 30 merge on the air discharge pump 80 side. Then, the merging portion is connected to the air discharge pump 80, and an on-off valve 65 is provided at the merging portion. However, this aspect is an example, and the configuration of the on-off valve 65 is not limited to this. For example, the on-off valve 65 may be provided on each air pipe 60.

また、例えば内側枠部分２０における内側小部屋２１の空気流入出口２１ａと、内側第１大部屋２２の空気流入出口２２ａ及び内側第２大部屋２３の空気流入出口２３ａとに別々の空気吐出ポンプを設けてもよいが、本実施の形態のように共通の空気吐出ポンプを使用した場合には、全体的な装置構成を簡素化できるメリットがある。 Further, for example, separate air discharge pumps are provided for the air inflow port 21a of the inner small room 21 in the inner frame portion 20, the air inflow port 22a of the inner first large room 22, and the air inflow port 23a of the inner second large room 23. Although it may be provided, when a common air discharge pump is used as in the present embodiment, there is an advantage that the overall device configuration can be simplified.

次に、浮沈式生簀枠構造体１０の沈下動作の一例について図５を参照しつつ説明する。図５（Ａ）〜（Ｄ）には、浮沈式生簀枠構造体１０が段階的に沈下する様子が概略的に示されている。図５（Ａ）〜（Ｄ）においては、説明の便宜のために、外側枠部分３０の図示を省略するが、外側枠部分３０及びその各部の符号については、内側枠部分２０の対応箇所に括弧書きで示している。 Next, an example of the sinking operation of the floating / sinking cage frame structure 10 will be described with reference to FIG. FIGS. 5 (A) to 5 (D) schematically show how the floating / sinking cage frame structure 10 sinks stepwise. In FIGS. 5 (A) to 5 (D), the outer frame portion 30 is not shown for convenience of explanation, but the outer frame portion 30 and the reference numerals of the outer frame portions 30 are shown in the corresponding portions of the inner frame portion 20. Shown in parentheses.

図５（Ａ）には、内側枠部分２０の各部屋２１〜２３及び外側枠部分３０の各部屋３１〜３３に空気が充填されることで、水面に浮いた状態とされた浮沈式生簀枠構造体１０が示されている。この状態から浮沈式生簀枠構造体１０を沈下させる際、この例では、まず、閉じられた状態の開閉バルブ６５が開かれる。これにより、内側枠部分２０の各部屋２１〜２３及び外側枠部分３０の各部屋３１〜３３のそれぞれの内部の空気を空気流入出口（２１ａ〜２３ａ、３１ａ〜３３ａ）から外部に同時に流出させる。 In FIG. 5 (A), the floating and sinking cage frames are in a state of floating on the water surface by filling the rooms 21 to 23 of the inner frame portion 20 and the rooms 31 to 33 of the outer frame portion 30 with air. Structure 10 is shown. When the floating / sinking cage frame structure 10 is subsided from this state, in this example, the open / close valve 65 in the closed state is first opened. As a result, the air inside each of the rooms 21 to 23 of the inner frame portion 20 and each of the rooms 31 to 33 of the outer frame portion 30 is simultaneously discharged to the outside from the air inflow outlets (21a to 23a, 31a to 33a).

上述のように各部屋から空気を流出させると、各部屋には対応する水流入出口（２１ｗ〜２３ｗ、３１ｗ〜３３ｗ）から水が自然に流入し、各部屋の内部で空気と水が置換される。これにより、各部屋の沈下が進行する。 When air is discharged from each room as described above, water naturally flows into each room from the corresponding water inflow outlets (21w to 23w, 31w to 33w), and air and water are replaced inside each room. NS. As a result, the sinking of each room progresses.

ここで、本実施の形態では、内側第１大部屋２２に設けられる水流入出口２２ｗの開口面積の総計及び内側第２大部屋２３に設けられる水流入出口２３ｗの開口面積の総計がそれぞれ、内側小部屋２１に設けられる水流入出口２１ｗの開口面積の総計よりも大きい。また、外側第１大部屋３２に設けられる空気流入出口３２ａの開口面積の総計及び外側第２大部屋３３に設けられる空気流入出口３３ａの開口面積の総計がそれぞれ、外側小部屋３１に設けられる空気流入出口３１ａの総計よりも大きい。 Here, in the present embodiment, the total opening area of the water inflow outlet 22w provided in the inner first large room 22 and the total opening area of the water inflow outlet 23w provided in the inner second large room 23 are inside, respectively. It is larger than the total opening area of the water inflow port 21w provided in the small room 21. Further, the total opening area of the air inflow port 32a provided in the outer first large room 32 and the total opening area of the air inflow port 33a provided in the outer second large room 33 are the total air provided in the outer small room 31, respectively. It is larger than the total of the inflow port 31a.

これにより、内側第１大部屋２２及び内側第２大部屋２３に、内側小部屋２１よりも早く多くの水が流入し、外側第１大部屋３２及び外側第２大部屋３３に、外側小部屋３１よりも早く多くの水が流入する。言い換えると、内側第１大部屋２２及び内側第２大部屋２３への水の流入量が、内側小部屋２１への水の流入量よりも大きくなるように、内側枠部分２０の内部に水が流入する。また、外側第１大部屋３２及び外側第２大部屋３３への水の流入量が、外側小部屋３１への水の流入量よりも大きくなるように、外側枠部分３０の内部に水が流入する。その結果、図５（Ｂ）及び図５（Ｃ）に示すように、浮沈式生簀枠構造体１０の内側第１大部屋２２及び内側第２大部屋２３と、外側第１大部屋３２及び外側第２大部屋３３とが、内側小部屋２１と外側小部屋３１よりも先に沈下する。ここで、本実施の形態では、沈下の際にポンプ動力が必要でないため、構成が簡素であり、経済的なメリットも得られる。 As a result, more water flows into the inner first large room 22 and the inner second large room 23 faster than the inner small room 21, and the outer small room 32 into the outer first large room 32 and the outer second large room 33. More water flows in faster than 31. In other words, the amount of water flowing into the inner frame portion 20 is larger than the amount of water flowing into the inner small room 21 so that the amount of water flowing into the inner first large room 22 and the inner second large room 23 is larger than the amount of water flowing into the inner small room 21. Inflow. Further, water flows into the outer frame portion 30 so that the amount of water flowing into the outer first large room 32 and the outer second large room 33 is larger than the amount of water flowing into the outer small room 31. do. As a result, as shown in FIGS. 5 (B) and 5 (C), the inner first large room 22 and the inner second large room 23, and the outer first large room 32 and the outer side of the floating / sinking cage frame structure 10 are shown. The second large room 33 sinks before the inner small room 21 and the outer small room 31. Here, in the present embodiment, since pump power is not required at the time of subsidence, the configuration is simple and economic merits can be obtained.

そして、内側枠部分２０の各部屋２１〜２３及び外側枠部分３０の各部屋３１〜３３のそれぞれに水が充填されると、図５（Ｄ）に示すように、浮沈式生簀枠構造体１０は水面に概ね平行な状態で水中に沈下された状態となる。ここで、開閉バルブ６５は閉じられる。開閉バルブ６５の開閉は、手動で行われてもよいし、制御装置で制御されてもよい。 Then, when water is filled in each of the rooms 21 to 23 of the inner frame portion 20 and each of the rooms 31 to 33 of the outer frame portion 30, as shown in FIG. 5 (D), the floating and sinking cage frame structure 10 Is submerged in water while being approximately parallel to the water surface. Here, the on-off valve 65 is closed. The opening and closing of the on-off valve 65 may be performed manually or may be controlled by a control device.

以上のような浮沈式生簀枠構造体１０の動作の際、浮沈式生簀枠構造体１０は、内側第１大部屋２２及び内側第２大部屋２３側（外側第１大部屋３２及び外側第２大部屋３３側）が、内側小部屋２１側（外側小部屋３１側）よりも下方に位置するように傾斜しながら、沈下していく。ここで、本実施の形態では、内側枠部分２０における空気流入出口２１ａ，２２ａ，２３ａ及び外側枠部分３０における空気流入出口３１ａ，３２ａ，３３ａの沈下は、これらの配置位置の工夫によって、浮沈式生簀枠構造体１０の全体の沈下過程において後半に行われる（図５（Ｃ）参照）。これにより、空気流入出口が水中に先行して沈下し、空気流入出口から外部に空気を排出し難くなるか又は排出できなくなる状況が生じることを回避でき、その結果、浮沈式生簀枠構造体１０をスムーズに沈下させることができる。 During the operation of the floating / sinking cage frame structure 10 as described above, the floating / sinking cage frame structure 10 is located on the inner first large room 22 and the inner second large room 23 side (outer first large room 32 and outer second large room 32). The large room 33 side) sinks while being inclined so as to be located below the inner small room 21 side (outer small room 31 side). Here, in the present embodiment, the sinking of the air inflow ports 21a, 22a, 23a in the inner frame portion 20 and the air inflow ports 31a, 32a, 33a in the outer frame portion 30 is a floating / sinking type by devising the arrangement positions thereof. It takes place in the latter half of the entire subsidence process of the cage frame structure 10 (see FIG. 5 (C)). As a result, it is possible to avoid a situation in which the air inflow port sinks in advance of the water, making it difficult or impossible to discharge air from the air inflow port to the outside, and as a result, the floating / sinking cage frame structure 10 Can be subsided smoothly.

一方で、図５（Ｄ）の状態から浮沈式生簀枠構造体１０を浮上させる際には、空気吐出ポンプ８０を駆動することで、内側枠部分２０の各部屋２１〜２３及び外側枠部分３０の各部屋３１〜３３のそれぞれの内部に空気を流入させる。これにより、各部屋の内部から水が外部に流出し、各部屋の内部で水と空気が置換されることで、各部屋が浮上する。 On the other hand, when the floating / sinking cage frame structure 10 is levitated from the state shown in FIG. Air is allowed to flow into each of the rooms 31 to 33 of the above. As a result, water flows out from the inside of each room, and water and air are replaced inside each room, so that each room rises.

以上に説明したように本実施の形態に係る浮沈式生簀枠構造体１０では、枠部分（２０、３０）に設けられる複数の部屋（２１〜２３，３１〜３３）に、水流入出口の開口面積の総計が互いに異なる２つの部屋（例えば内側小部屋２１と内側第１大部屋２２との組、及び、内側小部屋２１と内側第２大部屋２３との組等）が含まれる。水流入出口の開口面積の総計が互いに異なる２つの部屋では、上述したように水流入出口の開口面積の総計が大きい方の部屋に、水流入出口の開口面積の総計が小さい方の部屋よりも早く多くの水を流入させることが可能となる。そのため、２つの部屋にそれぞれ水を流入させた際、水流入出口の開口面積の総計が大きい方の部屋を、水流入出口の開口面積の総計が小さい方の部屋よりも先に水中に沈めることができる。ここで、このような沈下動作は、互いに異なる部屋の水流入出口の開口面積を異ならせるというシンプルな構造で実現される。そのため、この浮沈式生簀枠構造体１０では、先行させて沈下させたい部分に、水流入出口の開口面積が大きい方の部屋を設定（レイアウト）することで、浮沈式生簀枠構造体１０を所望の傾斜状態に簡易に制御しつつ、これを沈下させることが可能となる。 As described above, in the floating / sinking cage frame structure 10 according to the present embodiment, the water inflow outlets are opened in a plurality of rooms (21-23, 31-3) provided in the frame portions (20, 30). Two rooms having different total areas (for example, a pair of an inner small room 21 and an inner first large room 22 and a pair of an inner small room 21 and an inner second large room 23) are included. In two rooms where the total opening area of the water inflow port is different from each other, as described above, the room having the larger total opening area of the water inflow port has a larger total opening area of the water inflow port than the room having the smaller total opening area. It is possible to inflow a lot of water quickly. Therefore, when water is poured into each of the two rooms, the room with the larger total opening area of the water inflow outlet should be submerged in water before the room with the smaller total opening area of the water inflow outlet. Can be done. Here, such a subsidence operation is realized by a simple structure in which the opening areas of the water inflow ports of different rooms are different from each other. Therefore, in the floating / sinking cage frame structure 10, the floating / sinking cage frame structure 10 is desired by setting (laying out) a room having a larger opening area of the water inflow outlet in the portion to be subsided in advance. It is possible to subside this while easily controlling the tilted state of.

これにより、本実施の形態に係る浮沈式生簀枠構造体１０によれば、沈下時の姿勢を所望の傾斜状態に簡易に制御できる。具体的には、浮沈式生簀枠構造体１０の沈下時の姿勢を、内側枠部分２０における空気流入出口２１ａ，２２ａ，２３ａ及び外側枠部分３０における空気流入出口３１ａ，３２ａ，３３ａの沈下が、浮沈式生簀枠構造体１０の全体の沈下過程において極力後半に行われるような傾斜状態に簡易に制御でき、これにより、浮沈式生簀枠構造体１０を簡易的にスムーズに沈下させることができる。 Thereby, according to the floating / sinking cage frame structure 10 according to the present embodiment, the posture at the time of sinking can be easily controlled to a desired inclined state. Specifically, the attitude of the floating and sinking cage frame structure 10 at the time of sinking is determined by the sinking of the air inflow ports 21a, 22a, 23a in the inner frame portion 20 and the air inflow outlets 31a, 32a, 33a in the outer frame portion 30. It is possible to easily control the tilted state to be performed in the latter half of the entire sinking process of the floating and sinking cage structure 10, whereby the floating and sinking cage structure 10 can be easily and smoothly subsided.

以上に説明した実施の形態は、本発明の一例を説明するものであり、本発明は、上記実施の形態の構成に限定されるものではなく、上記実施の形態には種々の変更を加えることができる。例えば、上記実施の形態では、大部屋（２２，２３，３２，３３）が、小部屋（２１，３１）よりも先行して沈下する構成を説明したが、小部屋（２１，３１）の水流入出口の開口面積の総計を、大部屋（２２，２３，３２，３３）の水流入出口の開口面積の総計よりも大きくして、小部屋（２１，３１）を大部屋（２２，２３，３２，３３）よりも先に沈下させてもよい。また、上記実施の形態では、空気吐出ポンプ８０が用いられたが、空気吸排ポンプを用いて、沈下の際に、枠部分２０、３０の内部の空気を吸入してもよい。 The embodiments described above describe an example of the present invention, and the present invention is not limited to the configuration of the above embodiments, and various modifications may be made to the above embodiments. Can be done. For example, in the above embodiment, the configuration in which the large room (22, 23, 32, 33) sinks before the small room (21, 31) has been described, but the water in the small room (21, 31) has been described. The total opening area of the inflow port is made larger than the total opening area of the water inflow port of the large room (22, 23, 32, 33), and the small room (21, 31) is made into the large room (22, 23, 33). It may be submerged before 32, 33). Further, in the above embodiment, the air discharge pump 80 is used, but the air inside the frame portions 20 and 30 may be sucked in at the time of subsidence by using the air suction / exhaust pump.

１…生簀
１０…浮沈式生簀枠構造体
２０…内側枠部分
２１…内側小部屋
２１ａ…空気流入出口
２１ｗ…水流入出口
２１ｄ…流水ダクト
２２…内側第１大部屋
２２ａ…空気流入出口
２２ｗ…水流入出口
２２ｄ…流水ダクト
２３…内側第２大部屋
２３ａ…空気流入出口
２３ｗ…水流入出口
２３ｄ…流水ダクト
３０…外側枠部分
３１…外側小部屋
３１ａ…空気流入出口
３１ｗ…水流入出口
３１ｄ…流水ダクト
３２…外側第１大部屋
３２ａ…空気流入出口
３２ｗ…水流入出口
３２ｄ…流水ダクト
３３…外側第２大部屋
３３ａ…空気流入出口
３３ｗ…水流入出口
３３ｄ…流水ダクト
４０…連結部材
５０…隔壁
６０…空気配管
８０…空気吐出ポンプ
１００…網
Ｓ…生息空間 1 ... Raw cage 10 ... Floating and sinking type cage frame structure 20 ... Inner frame part 21 ... Inner small room 21a ... Air inflow outlet 21w ... Water inflow outlet 21d ... Running water duct 22 ... Inner first large room 22a ... Air inflow outlet 22w ... Water Inflow outlet 22d ... Flowing duct 23 ... Inner second large room 23a ... Air inflow outlet 23w ... Water inflow outlet 23d ... Running water duct 30 ... Outer frame portion 31 ... Outer small chamber 31a ... Air inflow outlet 31w ... Water inflow outlet 31d ... Running water Duct 32 ... Outer first large chamber 32a ... Air inflow outlet 32w ... Water inflow outlet 32d ... Running water duct 33 ... Outer second large room 33a ... Air inflow outlet 33w ... Water inflow outlet 33d ... Running water duct 40 ... Connecting member 50 ... Partition 60 ... Air duct 80 ... Air discharge pump 100 ... Net S ... Habitat

Claims (11)

複数の部屋に区画された中空状の枠部分を備え、
前記複数の部屋はそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口と、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口と、を有し、
前記複数の部屋には、前記水流入出口の開口面積の総計が互いに異なる２つの部屋が少なくとも含まれる、浮沈式生簀枠構造体。 It has a hollow frame part divided into multiple rooms, and has a hollow frame part.
Each of the plurality of rooms has one or more air inlets that allow air flow between the inside and the outside, and one or more air inlets that allow water flow between the inside and the outside. With a water inflow port,
The floating / sinking cage frame structure includes at least two rooms in which the total opening area of the water inflow port is different from each other. 前記２つの部屋のうちの前記水流入出口の開口面積の総計が大きい方の部屋の前記水流入出口の数が、前記２つの部屋のうちの前記水流入出口の開口面積の総計が小さい方の前記水流入出口の数よりも多くなっている、請求項１に記載の浮沈式生簀枠構造体。 The number of the water inflow outlets in the room having the larger total opening area of the water inflow port in the two rooms is the smaller in the total opening area of the water inflow port in the two rooms. The floating / sinking type cage structure according to claim 1, wherein the number is larger than the number of water inflow ports. 前記開口面積の総計が大きい方の部屋に設けられる１つの前記水流入出口と、前記開口面積の総計が小さい方の部屋に設けられる１つの前記水流入出口とを比べたとき、両水流入出口は、同じ形状で且つ同じ開口面積である、請求項２に記載の浮沈式生簀枠構造体。 When comparing the one water inflow port provided in the room having the larger total opening area and the one water inflow port provided in the room having the smaller total opening area, both water inflow outlets are used. Is the floating / sinking type cage frame structure according to claim 2, which has the same shape and the same opening area. 前記２つの部屋のうちの前記水流入出口の開口面積の総計が大きい方の部屋の前記空気流入出口の開口面積の総計が、前記２つの部屋のうちの前記水流入出口の開口面積の総計が小さい方の部屋の前記空気流入出口の開口面積の総計よりも大きい、請求項１乃至３のいずれかに記載の浮沈式生簀枠構造体。 The total opening area of the air inflow port of the room having the larger total opening area of the water inflow port of the two rooms is the total opening area of the water inflow port of the two rooms. The floating / sinking type cage structure according to any one of claims 1 to 3, which is larger than the total opening area of the air inflow port in the smaller room. 前記２つの部屋のうちの前記水流入出口の開口面積の総計が大きい方の部屋の前記空気流入出口は、当該開口面積の総計が大きい方の部屋における、前記２つの部屋のうちの前記水流入出口の開口面積の総計が小さい方の部屋側の部分に設けられている、請求項１乃至４のいずれかに記載の浮沈式生簀枠構造体。 The air inflow outlet of the room having the larger total opening area of the water inflow outlet of the two rooms is the water inflow of the two rooms in the room having the larger total opening area. The floating / sinking type cage frame structure according to any one of claims 1 to 4, which is provided in a portion on the room side where the total opening area of the outlet is smaller. 前記枠部分が水面に平行な状態で浮いた際に、前記空気流入出口は上方に向けて開口し、前記水流入出口は下方に向けて開口する、請求項１乃至５のいずれかに記載の浮沈式生簀枠構造体。 The method according to any one of claims 1 to 5, wherein when the frame portion floats in a state parallel to the water surface, the air inflow outlet opens upward and the water inflow outlet opens downward. Floating and sinking cage frame structure. 各前記部屋の前記空気流入出口が、共通の空気吐出ポンプに接続されている、請求項１乃至６のいずれかに記載の浮沈式生簀枠構造体。 The floating / sinking cage structure according to any one of claims 1 to 6, wherein the air inflow port of each room is connected to a common air discharge pump. 前記複数の部屋は、１つの小部屋と、前記小部屋の両端部間の長さよりも、その両端部間の長さが大きい２つの大部屋と、の３つの部屋でなり、
各前記大部屋の前記水流入出口の開口面積の総計がそれぞれ、前記小部屋の前記水流入出口の開口面積の総計よりも大きくなっている、請求項１乃至７のいずれかに記載の浮沈式生簀枠構造体。 The plurality of rooms consist of three rooms, one small room and two large rooms in which the length between both ends of the small room is larger than the length between both ends.
The floating / sinking type according to any one of claims 1 to 7, wherein the total opening area of the water inflow port of each of the large rooms is larger than the total opening area of the water inflow port of the small room. Raw cage frame structure. 前記小部屋の前記水流入出口と、各前記大部屋の前記水流入出口とが、前記枠部分の中心を挟んで向き合う、請求項８に記載の浮沈式生簀枠構造体。 The floating / sinking cage frame structure according to claim 8, wherein the water inflow outlet of the small room and the water inflow outlet of each large room face each other with the center of the frame portion interposed therebetween. 複数の部屋に区画された中空状の枠部分を備え、前記複数の部屋がそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口と、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口と、を有する浮沈式生簀枠構造体の操作方法であって、
前記複数の部屋のうちの少なくとも１つの部屋への水の流入量が、他の部屋への水の流入量よりも大きくなるように、前記枠部分の内部に水を流入させる、浮沈式生簀枠構造体の操作方法。 One or more air inlets, each of which has a hollow frame portion partitioned into a plurality of rooms and allows air to flow between the inside and the outside, and the inside and the outside. A method of operating a floating and sinking cage structure having one or more water inflow outlets that allow the flow of water between them.
A floating and sinking cage frame that allows water to flow into the frame portion so that the amount of water flowing into at least one of the plurality of rooms is larger than the amount of water flowing into the other room. How to operate the structure. 複数の部屋に区画された中空状の枠部分を備え、
前記複数の部屋はそれぞれ、内部と外部との間の空気の通流を許容する１つ又は複数の空気流入出口と、内部と外部との間の水の通流を許容する１つ又は複数の水流入出口と、を有し、
前記複数の部屋には、前記水流入出口の開口面積の総計が互いに異なる２つの部屋が少なくとも含まれる、浮沈式構造体。 It has a hollow frame part divided into multiple rooms, and has a hollow frame part.
Each of the plurality of rooms has one or more air inlets that allow air flow between the inside and the outside, and one or more air inlets that allow water flow between the inside and the outside. With a water inflow port,
A floating-sink structure in which the plurality of rooms include at least two rooms having different total opening areas of the water inflow port.
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JPH1046559A (en) * 1996-08-08 1998-02-17 Kaiwa Tec Kk Sink-and-float type frame body
JP5605924B2 (en) * 2012-11-14 2014-10-15 三井金属エンジニアリング株式会社 Floating type sacrifice
JP5757477B2 (en) * 2011-03-29 2015-07-29 日東製網株式会社 Floating structure
KR101947319B1 (en) * 2018-08-02 2019-02-21 주식회사 대성에프앤비 Submersible marine aquaculture apparatus
CN110235832A (en) * 2019-07-10 2019-09-17 美钻深海能源科技研发（上海）有限公司 A kind of underwater culture diver power tool station system and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055363U (en) * 1983-09-22 1985-04-18 東レ・モノフイラメント株式会社 rotary arrangement
JPH1046559A (en) * 1996-08-08 1998-02-17 Kaiwa Tec Kk Sink-and-float type frame body
JP5757477B2 (en) * 2011-03-29 2015-07-29 日東製網株式会社 Floating structure
JP5605924B2 (en) * 2012-11-14 2014-10-15 三井金属エンジニアリング株式会社 Floating type sacrifice
KR101947319B1 (en) * 2018-08-02 2019-02-21 주식회사 대성에프앤비 Submersible marine aquaculture apparatus
CN110235832A (en) * 2019-07-10 2019-09-17 美钻深海能源科技研发（上海）有限公司 A kind of underwater culture diver power tool station system and method

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