JP2014113141A - Floating-submersible cage - Google Patents

Floating-submersible cage Download PDF

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JP2014113141A
JP2014113141A JP2013033138A JP2013033138A JP2014113141A JP 2014113141 A JP2014113141 A JP 2014113141A JP 2013033138 A JP2013033138 A JP 2013033138A JP 2013033138 A JP2013033138 A JP 2013033138A JP 2014113141 A JP2014113141 A JP 2014113141A
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upper frame
center
buoyancy
frame
lower frame
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JP5605924B2 (en
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Hideo Kasuya
英雄 粕谷
Kazuo Fukahori
一夫 深堀
Hirohisa Senzaki
博久 千崎
Shoji Kawano
彰司 川野
Shuichi Okawa
修一 大川
Kunihiro Ando
国広 安東
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KASUTANI FISHING NET Manufacturing CO Ltd
Mesco Inc
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KASUTANI FISHING NET Manufacturing CO Ltd
Mesco Inc
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Priority to PCT/JP2013/079973 priority patent/WO2014077159A1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a floating-submersible cage such that listing thereof when being raised or lowered can be prevented by generating an upward force as well as a downward force, the upward force being generated by way of the buoyancy of an upper frame of the cage or by way of both the buoyancy of the upper frame of the cage and the buoyancy of an upper central stabilizing body disposed to the center of the upper frame of the cage when necessary, and the downward force being generated by way of a lower central stabilizing weight disposed below the center of a lower frame.SOLUTION: An upper frame 2, a lower frame 3, and a net 4 are attached, the interior of the ring-shaped upper frame 2 is partitioned into multiple portions, each with a partitioning buoyancy calibrating chamber 21, an upper central stabilizing body 5 is disposed to the center of the ring of the upper frame, and a lower central stabilizing weight 6 is disposed to the center of the ring of the lower frame 3.

Description

この発明は、空気及び海水や淡水の出入を利用して海水中や淡水中を昇降するようにした浮沈式生け簀に係り、特に、生け簀の上部枠体に浮力により上向きの力を生じさせると共に、或いは生け簀の上部枠体の浮力及び生け簀の上部枠体の中心部に必要に応じて配置した上部中央安定体に浮力により上向きの力を生じさせると共に、下部枠体の中心部の下方に配置した下部中央安定用錘による下向きの力を生じさせて、生け簀の昇降時に生け簀が傾くのを防止できるようにした浮沈式生け簀に関するものである。   The present invention relates to a floating and sinking fish cage that moves up and down in seawater and freshwater by using air and seawater and freshwater, and in particular, generates an upward force due to buoyancy in the upper frame of the cage, Alternatively, the buoyancy of the upper frame of the sacrifice and the upper central stabilizer arranged as necessary in the center of the upper frame of the sacrifice produce an upward force by buoyancy and is arranged below the center of the lower frame The present invention relates to a floating sacrificial cage in which a downward force is generated by a lower center stabilization weight so that the sacrificial tilt can be prevented when the cage is raised and lowered.

近年、沿岸海域の養殖漁場は赤潮など環境の悪化が問題となっており沖合養殖の必要性が増している。その沖合養殖で最も安全な施設として浮沈式生け簀が知られている。浮沈式生け簀は、円形、多角形、方形などの形状からなる上部枠体と下部枠体から上下の枠体が構成され、上部枠体の上面、下部枠体の底面、及び上部枠体と下部枠体の間の側周面に、それぞれネットが取り付けられていて、その内部で種々の養殖魚が飼育されている。
浮沈式生け簀は、波浪、台風などで海水面が時化た場合、生け簀が破損して内部の養殖魚が逃げ出すのを防ぐために、海水中に沈めている。そして浮沈式生け簀には、空気と海水を出し入れし浮力を調整して昇降するための中空のパイプが取り付けられている。 In recent years, aquaculture fisheries in coastal waters have become a problem of environmental deterioration such as red tide, and the need for offshore aquaculture is increasing. Floating / sinking is known as the safest facility for offshore aquaculture. An up-and-down type sacrifice consists of an upper frame and a lower frame made of shapes such as a circle, a polygon, and a rectangle. The upper and lower frames are composed of an upper frame, a bottom surface of the lower frame, and an upper frame and a lower frame. Nets are attached to the side peripheral surfaces between the frames, and various cultured fish are bred inside the nets.
Floating sinks are submerged in seawater in order to prevent the fish farms from escaping due to damage to the fishponds when the sea surface is tempered by waves or typhoons. In addition, a hollow pipe for moving up and down by adjusting the buoyancy by taking in and out air and seawater is attached to the floating sink.

特開２０１１−１４２８７８JP2011-142878 特開２０１１−０９２１８２JP2011-092182A 特許第４４０２７３９Patent No. 4402739 特開２００３−０５２２７３JP 2003-052273 A 特開２００１−０３２１０１１JP2001-0321011 特許第３７６１２５４Patent No. 3761254 特開平１０−０４６５５９JP 10-046559 A 特開平０８−２２８６３４JP 08-228634 特開平０７−００００７６JP 07-000076

しかしながら、浮沈式生け簀の昇降は、空気を入れたり出したりして行われているため、何かの拍子で、上部枠体が傾いた場合、パイプの内部の空気は傾いた側の上側に移動してそこで滞留してしまって、低い方には戻らない。その結果、浮沈式生け簀は傾いた状態のままとなり、これを元の水平の状態に戻すために、低い側のパイプ内に強制的に空気を送り込んだり、或いは、高い側のパイプ内に海水を注入したりして、傾いた浮沈式生け簀を元の水平な状態に戻すための作業が必要となるが、その作業は非常に大変であり、叉、危険を伴うこともあった。さらに、浮沈式生け簀が傾くことによって、内部の養殖魚にストレスを与え、生存率の低下を招くこともあった。   However, the raising and lowering of the floating sink is done by putting air in and out, so if the upper frame tilts with any beat, the air inside the pipe moves upward on the tilted side And it stays there and does not return to the lower one. As a result, the sink and sink is kept tilted, and in order to return it to its original horizontal state, air is forced into the lower pipe, or seawater is injected into the higher pipe. It is necessary to work to return the tilted floating sink to its original horizontal state by injecting it, but this work is very difficult and sometimes dangerous. In addition, the tilting of the floating and sinking fish gave stress to the farmed fish inside, leading to a decrease in the survival rate.

この発明は、上記のような課題に鑑み、その課題を解決すべく創案されたものであって、その目的とするところは、生け簀の上部枠体に浮力により上向きの力を生じさせると共に、或いは生け簀の上部枠体の浮力及び生け簀の上部枠体の中心部に必要に応じて配置した上部中央安定体に浮力により上向きの力を生じさせると共に、下部枠体の中心部の下方に配置した下部中央安定用錘による下向きの力を生じさせて、生け簀の昇降時に生け簀が傾くのを防止することのできる浮沈式生け簀を提供することにある。   In view of the above-described problems, the present invention was created to solve the problems, and the object of the present invention is to generate upward force by buoyancy in the upper frame of the sacrifice, or The buoyancy of the upper frame of the sacrifice and the upper central stabilizer placed as needed in the center of the upper frame of the sacrifice, and generating an upward force by buoyancy, and the lower part arranged below the center of the lower frame It is an object of the present invention to provide a floating sacrificial cage that generates a downward force by a central stabilizing weight and prevents the sacrificial tilting when the sacrificial cage is raised and lowered.

以上の課題を達成するために、請求項１の発明は、上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を配置した手段よりなるものである。   In order to achieve the above-mentioned problems, the invention of claim 1 is composed of an upper frame body and a lower frame body, and includes an inner side of the upper frame body, an inner side of the lower frame body, and between the upper frame body and the lower frame body. In a cage with nets attached to each side surface, the inside of the annular upper frame body is formed hollow as seen from the plane, the hollow interior is partitioned into multiple parts, and buoyancy is achieved by taking air and seawater into and out of the partitioned internal space. Lower center stabilization weight that provides a buoyancy adjustment chamber that adjusts the bottom of the three-dimensional sacrifice under the surface of the water at the annular center of the lower frame located below the upper frame. It consists of the means which arranged.

また、以上の課題を達成するために、請求項２の発明は、上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の環状中心部に立体型の生け簀全体の上部側を水面上で浮力により水平に安定させる上部中央安定体を配置し、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を配置した手段よりなるものである。   In order to achieve the above object, the invention of claim 2 is composed of an upper frame and a lower frame, and includes an inner side of the upper frame, an inner side of the lower frame, and an upper frame and a lower frame. In a cage with nets attached to each side circumferential surface, the inside of the annular upper frame body is formed hollow as seen from the plane, the hollow interior is partitioned into a plurality of parts, and air and seawater are taken in and out of the partitioned internal space The buoyancy adjustment chamber for adjusting the buoyancy is provided in each, and the upper center stabilizer that stabilizes the upper part of the whole three-dimensional ginger horizontally on the water surface by buoyancy is arranged in the annular center part of the upper frame. The lower center stabilizing weight for stabilizing the lower side of the whole three-dimensional sacrifice under the water surface by the weight is arranged at the annular central portion of the lower frame located on the lower side of the lower frame.

課題を解決するための手段よりなる請求項１の発明に係る浮沈式生け簀によれば、生け簀の上部枠体に浮力により上向きの力を生じさせると共に、下部枠体の中心部の下方に下部中央安定用錘による下向きの力を生じさせることにより、生け簀全体の重心位置より上方に位置する上部枠体には浮力によって上向き方向に力が作用し、また、その重心位置より下方に位置する下部中央安定用錘には自重によって下向き方向に力が作用する。
このように、生け簀全体の重心位置を基準に考えると、その上方側では上部枠体の浮力による上向きの力が作用し、その下方側では下部中央安定用錘による下向きの力が作用するため、生け簀全体を上下向きに回転させるモーメントが発生することがなく、逆に、生け簀全体を上下向きに回転するのを阻止する方向にモーメントが発生するので、生け簀の昇降時に生け簀の上部側が傾くのを確実に防止することができるという、極めて新規的有益なる効果を奏するものである。 According to the floating type sink according to the invention of claim 1 comprising means for solving the problem, an upward force is generated by buoyancy in the upper frame of the sacrifice, and the lower center is formed below the central part of the lower frame. By generating a downward force from the stabilizing weight, the upper frame located above the center of gravity of the whole sacrifice acts on the upper frame by buoyancy, and the lower center located below the center of gravity. A force acts on the stabilizing weight in the downward direction by its own weight.
In this way, when considering the center of gravity of the whole sacrifice as a reference, upward force due to the buoyancy of the upper frame acts on the upper side, and downward force due to the lower center stabilization weight acts on the lower side, There is no moment to rotate the whole sacrifice vertically, and conversely, a moment is generated in a direction that prevents the whole sacrifice from rotating up and down, so that the upper side of the sacrifice is tilted when raising and lowering the sacrifice. It has a very new and beneficial effect that it can be surely prevented.

課題を解決するための手段よりなる請求項２の発明に係る浮沈式生け簀によれば、生け簀の上部枠体に浮力により上向きの力を生じさせ且つ生け簀の上部枠体の中心部に配置した上部中央安定体に浮力により上向きの力を生じさせると共に、下部枠体の中心部の下方に下部中央安定用錘による下向きの力を生じさせることにより、生け簀全体の重心位置より上方に位置する上部枠体及び上部中央安定体には浮力によって上向き方向に力が作用し、また、その重心位置より下方に位置する下部中央安定用錘には自重によって下向き方向に力が作用する。
このように、生け簀全体の重心位置を基準に考えると、その上方側では上部枠体及び上部中央安定体の浮力による上向きの力が作用し、その下方側では下部中央安定用錘による下向きの力が作用するため、水面が安定した穏やかな海域ばかりでなく、特に上部中央安定体の働きによって水面が波立つ海域においても、生け簀全体を上下向きに回転させるモーメントが発生することがなく、逆に、生け簀全体を上下向きに回転するのを阻止する方向にモーメントが発生するので、生け簀の昇降時に生け簀の上部側が傾くのをより確実に防止することができる。
これに加えて、立体型の浮沈式生け簀の中心部には、その上部側に上部中央安定体による上向きの力が生じるので、生け簀の昇降時に生け簀の上部側が傾くのを確実に防止することができ、空気の排出時に傾いた浮力調整室の内部に空気が残留して、浮沈式生け簀が沈下しなかったり、空気の圧入時に傾いた浮沈式生け簀の底部側に海水叉は淡水が残留して浮上しないという不都合が生じることもない等、極めて新規的有益なる効果を奏するものである。 According to the floating type sink according to the invention of claim 2 comprising means for solving the problems, an upper force is generated in the upper frame of the sacrifice by buoyancy and is arranged at the center of the upper frame of the sacrifice The upper frame is located above the center of gravity of the entire sacrificial cage by generating upward force by buoyancy in the central stabilizer and generating downward force by the lower central stabilization weight below the center of the lower frame. A force acts on the body and the upper center stabilizing body in the upward direction by buoyancy, and a force acts on the lower center stabilizing weight located below the center of gravity position in the downward direction by its own weight.
Thus, considering the center of gravity of the entire sacrificial ginger as a reference, upward force due to the buoyancy of the upper frame and upper center stabilizer acts on the upper side, and downward force due to the lower center stabilization weight on the lower side. Therefore, not only in calm waters where the water surface is stable, but also in waters where the water surface is waved by the action of the upper central stabilizer, there is no moment to rotate the whole sacrifice vertically, Since a moment is generated in a direction that prevents the entire sacrifice from rotating up and down, it is possible to more reliably prevent the upper side of the sacrifice from being tilted when the sacrifice is raised or lowered.
In addition, an upward force is generated by the upper center stabilizer on the upper side of the center part of the three-dimensional floating sink, so that it is possible to reliably prevent the upper side of the sacrifice from tilting when the cage is raised or lowered. The air remains in the tilted buoyancy adjustment chamber that is tilted when the air is discharged, and the floating and sinking cage does not sink, or seawater or fresh water remains on the bottom of the tilting and sinking cage that is tilted when the air is injected. There is an extremely new beneficial effect such as no inconvenience of not rising.

この発明を実施するための形態を示す浮沈式生け簀の平面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. この発明を実施するための形態を示す浮沈式生け簀の側面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. この発明を実施するための形態を示す上部中央安定体を有する浮沈式生け簀の平面図である。It is a top view of an ups and downs type sacrifice which has an upper center stabilizer which shows a form for carrying out this invention. この発明を実施するための形態を示す上部中央安定体を有する浮沈式生け簀の側面図である。It is a side view of an ups and downs type sacrifice which has an upper center stabilizer which shows a form for carrying out this invention. この発明を実施するための形態を示す上部中央安定体を有する浮沈式生け簀の上部側の側面図である。It is a side view of the upper part side of the float-and-sink type sacrifice which has an upper center stabilizer which shows the form for implementing this invention. この発明を実施するための形態を示す上部枠体の側面図である。It is a side view of the upper frame which shows the form for implementing this invention. （Ａ）はこの発明を実施するための形態を示す下部中央安定用錘の平面図、同図（Ｂ）は下部中央安定用錘の側面図である。(A) is a top view of the lower center stabilization weight which shows the form for implementing this invention, The same figure (B) is a side view of the lower center stabilization weight. この発明を実施するための形態を示す浮沈式生け簀の作用説明図である。It is action | operation explanatory drawing of the rise and fall type sacrifice which shows the form for implementing this invention. この発明を実施するための形態を示す上部中央安定体を有する浮沈式生け簀の作用説明図である。It is operation | movement explanatory drawing of the sinking type sacrifice which has an upper center stabilizer which shows the form for implementing this invention.

以下、図面に記載の発明を実施するための形態に基づいて、この発明をより具体的に説明する。   Hereinafter, the present invention will be described more specifically based on embodiments for carrying out the invention described in the drawings.

図において、浮沈式生け簀１は、例えば直径が３０ｍ以上の大型生け簀に使用され、空気及び海水や淡水の出入を利用して海水中や淡水中を昇降するもので、波浪、台風などで海水面や淡水面が時化たときには、生け簀が破損して内部の養殖魚が逃げ出すのを防ぐために水面下に沈み、平常時には水面上に浮上させて通常の生け簀として使用できる構造になっている。   In the figure, a floating sink 1 is used for a large cage having a diameter of 30 m or more, for example, and moves up and down in seawater or freshwater using the inflow and outflow of air, seawater and freshwater. When the freshwater surface ages, it sinks under the water surface to prevent the fish cages from damaging and escaping the fish inside, and in normal times it floats above the water surface and can be used as a normal sacrifice.

浮沈式生け簀１は、上部枠体２と下部枠体３から構成され、上部枠体２と下部枠体３とは上下方向に取り付けられた複数の索状１１によって上下で連結されている。上部枠体２の内側にはネット４が取り付けられている。下部枠体３の内側にもネット４が取り付けられている。さらに上部枠体２と下部枠体３との間の側周面にもネット４が取り付けられている。側周面に取り付けられたネット４の下部は複数の索状１１ａにより下部枠体３に連結されている。これらのネット４により、浮沈式生け簀１の内部、つまり上面、側周面及び底面は囲まれていて、内部の養殖魚類が逃げるのを防いでいる。   The floating sink 1 is composed of an upper frame 2 and a lower frame 3, and the upper frame 2 and the lower frame 3 are connected to each other vertically by a plurality of cords 11 attached in the vertical direction. A net 4 is attached inside the upper frame 2. A net 4 is also attached to the inside of the lower frame 3. Further, a net 4 is attached to the side peripheral surface between the upper frame 2 and the lower frame 3. The lower part of the net 4 attached to the side peripheral surface is connected to the lower frame 3 by a plurality of cords 11a. These nets 4 surround the inside, that is, the top surface, the side peripheral surface, and the bottom surface of the floating sink 1 to prevent the cultured fish inside from escaping.

さらにまた、平面からみて環状の上部枠体２の環状中心部には必要に応じて上部中央安定体５が配置されている。同様に平面からみて環状の下部枠体３の環状中心部には下部中央安定用錘６が配置されている。上部枠体２及び下部枠体３は平面から見て、環状例えば円周形に形成されている。環状例えば円周形の上部枠体２の内部は浮力を生じやすいように中空に形成されていて、例えばプラスチックパイプが使用されている。上部枠体２の断面は円形になっている。   Furthermore, an upper central stabilizer 5 is disposed at the annular central portion of the annular upper frame 2 as viewed from the plane, if necessary. Similarly, a lower center stabilizing weight 6 is disposed at the annular center portion of the annular lower frame 3 when viewed from the plane. The upper frame body 2 and the lower frame body 3 are formed in an annular shape, for example, a circumferential shape as viewed from above. The inside of the annular, for example, circumferential upper frame 2 is formed hollow so as to easily generate buoyancy. For example, a plastic pipe is used. The cross section of the upper frame 2 is circular.

また、上部枠体２は、例えば図面では円周形のプラスチックパイプが２重の状態で取り付けられている。直径の大きな円周形のプラスチックパイプの内部にこれよりも直径が小さなプラスチックパイプがその内側に取り付けられている。そして、内外の２つのプラスチックパイプは連結されていて、その２重になっている上側には作業用の足場が取り付けられている。さらに、上部枠体２の内側には安全のための手摺２ａが円周方向に取り付けられている。   The upper frame 2 is attached with, for example, a circular plastic pipe in a double state in the drawing. A plastic pipe having a smaller diameter is attached to the inside of a circular plastic pipe having a large diameter. The inner and outer plastic pipes are connected to each other, and a work scaffold is attached to the upper side of the two overlapping pipes. Furthermore, a handrail 2a for safety is attached to the inner side of the upper frame 2 in the circumferential direction.

環状の上部枠体２の中空の内部は等間隔で複数に仕切られている。仕切られた内部には空気及び海水または淡水の出し入れで、浮力の調整を図る浮力調整室２１がそれぞれ設けられている。隣りあう浮力調整室２１は仕切られているが、そこには仕切り２２として機能する例えば発泡剤が充填されて、これにより仕切られている。   The hollow interior of the annular upper frame body 2 is divided into a plurality at equal intervals. A buoyancy adjustment chamber 21 for adjusting buoyancy is provided in each of the partitioned interiors by taking in and out air and seawater or fresh water. Adjacent buoyancy adjustment chambers 21 are partitioned, and are filled with, for example, a foaming agent functioning as a partition 22, thereby being partitioned.

浮力調整室２１は環状のパイプの円周上に等間隔で配置され、各浮力調整室２１の間には発泡剤からなる仕切り２２が同様に等間隔で配置されていて、これで仕切られている。発泡剤からなる仕切り２２は、各浮力調整室２１に入れられた空気及び海水または淡水が隣の浮力調整室２１に移動するのを防ぐ役目を果たす。また、発泡剤からなる仕切り２２は、上部枠体２の全体を軽くして、浮力が発生し易い構造にしている。   The buoyancy adjustment chambers 21 are arranged at equal intervals on the circumference of the annular pipe, and partitions 22 made of a foaming agent are similarly arranged at equal intervals between the buoyancy adjustment chambers 21 and are partitioned by this. Yes. The partition 22 made of a foaming agent serves to prevent air and seawater or fresh water contained in each buoyancy adjustment chamber 21 from moving to the adjacent buoyancy adjustment chamber 21. Moreover, the partition 22 made of a foaming agent has a structure in which the entire upper frame body 2 is lightened to easily generate buoyancy.

各浮力調整室２１の上部側には空気の出し入れのための空気出入用パイプ２３の先端が接続されている。空気出入用パイプ２３は図示しない空気供給源に接続されている。この空気を供給する空気出入用パイプ２３には開閉弁２４が取り付けられている。開閉弁２４は空気出入用パイプ２３から供給される空気が浮力調整室２１に流入するのを制御して開閉する。また、開閉弁２４は閉じられることで、浮力調整室２１から空気が空気出入用パイプ２３側に逆流するのを防ぐ機能を果たす。   The top of each buoyancy adjustment chamber 21 is connected to the tip of an air inlet / outlet pipe 23 for taking in and out air. The air inlet / outlet pipe 23 is connected to an air supply source (not shown). An open / close valve 24 is attached to the air inlet / outlet pipe 23 for supplying the air. The on-off valve 24 opens and closes by controlling the air supplied from the air inlet / outlet pipe 23 from flowing into the buoyancy adjusting chamber 21. Further, the on-off valve 24 is closed, thereby fulfilling a function of preventing air from flowing backward from the buoyancy adjusting chamber 21 to the air in / out pipe 23 side.

そして、浮沈式生け簀１を水面下から上昇させる場合には、空気出入用パイプ２３を通じて空気供給源から空気が供給される。その場合には開閉弁２４は開き、空気出入用パイプ２３から浮力調整室２１に空気が供給される。浮力調整室２１が所定量以上の空気で満たされる場合には上部枠体２には供給された空気によって浮力が発生し、その一方で、浮力調整室２１が所定量以上の海水叉は淡水で満たされる場合には浮力が生じない構造になっている。   And when raising / lowering the sacrificial cage 1 from below the water surface, air is supplied from an air supply source through the air inlet / outlet pipe 23. In that case, the on-off valve 24 is opened, and air is supplied from the air inlet / outlet pipe 23 to the buoyancy adjusting chamber 21. When the buoyancy adjustment chamber 21 is filled with a predetermined amount or more of air, buoyancy is generated in the upper frame 2 by the supplied air, while the buoyancy adjustment chamber 21 is filled with a predetermined amount or more of seawater fork or fresh water. When it is satisfied, it has a structure that does not generate buoyancy.

浮力調整室２１の下部には海水叉は淡水の出し入れのための水出入用ホース２５が取り付けられている。水出入用ホース２５はその一端は浮力調整室２１に連通し、他端は水中に開通して没している。この水出入用ホース２５には開閉弁は取り付けられてなく、浮力調整室２１は水出入用ホース２５を通じて水中側と常時、連通状態になっている。   At the bottom of the buoyancy adjustment chamber 21, a water in / out hose 25 for taking in and out seawater fork or fresh water is attached. One end of the water inflow / outflow hose 25 communicates with the buoyancy adjusting chamber 21, and the other end is opened and submerged in water. No opening / closing valve is attached to the water in / out hose 25, and the buoyancy adjusting chamber 21 is always in communication with the underwater side through the water in / out hose 25.

つまり浮力調整室２１の空気の圧力が弱い場合には、この水出入用ホース２５を通じて外の海水叉は淡水が浮力調整室２１内に入る。空気出入用パイプ２３を通じて空気が供給された場合には、その浮力調整室２１内には注入された空気の圧力によって内部の海水叉は淡水は水出入用ホース２５を通じて、海水叉は淡水中に排出される。   That is, when the air pressure in the buoyancy adjustment chamber 21 is weak, the fresh seawater or fresh water enters the buoyancy adjustment chamber 21 through the water access hose 25. When air is supplied through the air inlet / outlet pipe 23, the seawater fork or fresh water inside the buoyancy adjusting chamber 21 is fed into the buoyancy adjusting chamber 21 through the water inlet / outlet hose 25 and the seawater fork into fresh water. Discharged.

上部枠体２と同形の環状例えば円周形の下部枠体３には上部枠体２と同様に例えばプラスチックパイプが使用されている。下部枠体３の断面も円形になっているが、上部枠体２と異なり、浮力が常に生じないよう、全体として海水や淡水より比重が大きくなるように構成されている。下部枠体３の断面の径は上部枠体２よりも小さく、その内部は中空になっているが、その中空の内部には海水や淡水より比重が大きい材料が充填されている。   As with the upper frame 2, for example, a plastic pipe is used for the lower frame 3 having the same shape as the upper frame 2, for example, the circumferential lower frame 3. Although the cross section of the lower frame 3 is also circular, unlike the upper frame 2, the lower frame 3 is configured to have a specific gravity greater than seawater or fresh water as a whole so that buoyancy is not always generated. The diameter of the cross section of the lower frame 3 is smaller than that of the upper frame 2 and the inside thereof is hollow, but the inside of the hollow is filled with a material having a higher specific gravity than seawater or fresh water.

図３〜図５に図示するように、上部枠体２の円周形の環状の中心部には必要に応じて上部中央安定体５が配置されている。上部中央安定体５は水面が安定した穏やかな海域で浮沈式生け簀１を使用する場合には図１〜図２に図示するように省略されることもある。上部中央安定体５にはその周囲の環状の上部枠体２に対して複数の索状５１が放射状に取り付けられている。図面では十字状に取り付けられている。各索状５１はその一端が上部中央安定体５に連結され、他端は上部枠体２に連結されている。上部中央安定体５はこの放射状に配置された複数の索状５１によって、上部枠体２の円周形の環状の中心部に保持される。   As shown in FIGS. 3 to 5, an upper central stabilizer 5 is disposed at the center of the circular shape of the upper frame 2 as necessary. The upper central stabilizer 5 may be omitted as shown in FIGS. 1 and 2 when the floating sink 1 is used in a calm sea area where the water surface is stable. A plurality of cords 51 are radially attached to the upper central stabilizer 5 with respect to the surrounding annular upper frame 2. In the drawing, it is attached in a cross shape. Each cord 51 has one end connected to the upper central stabilizer 5 and the other end connected to the upper frame 2. The upper central stabilizer 5 is held at the circumferential annular center portion of the upper frame 2 by the plurality of cords 51 arranged radially.

必要に応じて配置される上部中央安定体５は上部枠体２の円周形の環状の中心部に位置して、立体型の浮沈式生け簀１全体の上部側を水面上で浮力により水平に安定させる機能を果たすものである。上部中央安定体５は立体型の浮沈式生け簀１の全体の重心位置の真上に配置されて、浮力によって常に上向きの力を生じさせることで、下向きに力を生じさせる下部中央安定用錘６との協働により、立体型の浮沈式生け簀１の全体に上下向きのモーメントが生じないようにして、立体型の浮沈式生け簀１全体の上部側を水面上に水平に安定させる。特に、水面が波立つ海域で浮沈式生け簀１を使用する場合にその効力を遺憾なく発揮する。   The upper center stabilizer 5 arranged as necessary is located at the center of the circular shape of the upper frame 2, and the upper part of the entire three-dimensional floating sink 1 is horizontally placed on the water surface by buoyancy. It fulfills the function of stabilizing. The upper center stabilizer 5 is disposed directly above the overall center of gravity of the three-dimensional floating sink 1 and always generates an upward force by buoyancy, thereby generating a lower center stabilizing weight 6. By cooperating with the above, the upper side of the entire three-dimensional floating sink 1 is horizontally stabilized so that no vertical moment is generated in the entire three-dimensional floating sink 1. In particular, when the floating sink 1 is used in a sea area where the water surface is undulating, its effectiveness is fully demonstrated.

上部中央安定体５には浮力が発生するように、内部が中空になっていて、上部枠体２と同様に、この中空の内部には空気が入れられており、内部の空気によって上部中央安定体５には浮力が生じる構造になっている。上部中央安定体５の内部の空気は上部枠体２と同様に出し入れができ、浮沈式生け簀１を水中に沈める場合には内部の空気が排出されて、その代わりに海水叉は淡水が流入し、水中にある浮沈式生け簀１を上昇させる場合には内部に空気を強制注入して海水叉は淡水を排出して、浮力を生じさせる構造になっている。   The upper center stabilizer 5 is hollow so that buoyancy is generated. Like the upper frame 2, the hollow center contains air, and the inner air stabilizes the upper center stabilizer. The body 5 has a structure in which buoyancy is generated. The air inside the upper center stabilizer 5 can be taken in and out in the same manner as the upper frame 2, and when the floating sink 1 is submerged in the water, the air inside is discharged, and instead seawater or fresh water flows in. When raising and lowering the floating sink 1 underwater, air is forcibly injected into the sea, seawater fork or fresh water is discharged, and buoyancy is generated.

下部枠体３の円周形の環状の中心部には下部中央安定用錘６が配置されている。下部中央安定用錘６にはその周囲の環状の下部枠体３に対して複数の索状６１が放射状に取り付けられている。図面では十字状に取り付けられている。各索状６１はその一端が下部中央安定用錘６に連結され、他端は下部枠体３に連結されている。   A lower center stabilizing weight 6 is disposed at the center of the circumferential shape of the lower frame 3. A plurality of cords 61 are radially attached to the lower central stabilizing weight 6 with respect to the annular lower frame 3 around the lower center stabilizing weight 6. In the drawing, it is attached in a cross shape. Each cord 61 has one end connected to the lower center stabilizing weight 6 and the other end connected to the lower frame 3.

下部中央安定用錘６は例えば図７に図示するような構造のものが使用される。下部中央安定用錘６は内部に空洞を有する円筒形の形状を有する鋼製の錘枠体６２と、錘枠体６２の開口する上面に取り付けられた鋼製の蓋体６３から構成されている。錘枠体６２の空洞の内部には錘となるコンクリートが充填されている。   For example, the lower center stabilizing weight 6 having a structure as shown in FIG. 7 is used. The lower center stabilizing weight 6 is composed of a steel weight frame body 62 having a cylindrical shape with a cavity inside, and a steel lid body 63 attached to the upper surface of the weight frame body 62 that is open. . The cavity of the weight frame body 62 is filled with concrete that becomes a weight.

蓋体６３は錘枠体６２の上端周縁に形成されたリング状のフランジにボルト・ナット６４により外れないように取り付けられ、内部の錘となるコンクリートの逸脱を防いでいる。叉錘枠体６２の外周側面には各索状６１の一端を連結するための鋼製の連結受具６５がその円周方向に等間隔で例えば４箇所にそれぞれ例えば溶着して突設されている。   The lid 63 is attached to a ring-shaped flange formed on the periphery of the upper end of the weight frame 62 so as not to be removed by bolts and nuts 64, and prevents the concrete serving as an internal weight from deviating. On the outer peripheral side surface of the fork weight frame body 62, steel connection receivers 65 for connecting one end of each cord 61 are protruded by welding, for example, at four locations at equal intervals in the circumferential direction. Yes.

下部中央安定用錘６は放射状に配置された上記の複数の索状６１によって、下部枠体３の円周形の環状の中心部に保持される。下部中央安定用錘６は、下部枠体３の内側に取り付けられたネット４から少し離れた下方の位置になるように、索状６１はすこし長めのものが取り付けられていて、下向きにＶ字型に撓んだ状態で取り付けられている。   The lower center stabilizing weight 6 is held at the circumferential annular center portion of the lower frame 3 by the plurality of cords 61 arranged radially. The lower central stabilizing weight 6 is a little longer than the net 61 attached to the inner side of the lower frame 3 and is slightly attached to the cord 61 so that the V-shaped downward. It is attached to the mold in a bent state.

下部中央安定用錘６は下部枠体３の円周形の環状の中心部に位置して、立体型の浮沈式生け簀１全体の下部側を水中で安定させる機能を果たすものである。下部中央安定用錘６は立体型の浮沈式生け簀１の全体の重心位置の真下に配置されて、錘の自重によって常に下向きの力を生じさせることで、上記の上向きに力を生じさせる上部中央安定体５との協働により、立体型の浮沈式生け簀１の全体に上下向きのモーメントが生じないようにして、立体型の浮沈式生け簀１全体の下部側を水中に安定させる。   The lower center stabilizing weight 6 is located at the center of the annular shape of the lower frame 3 and functions to stabilize the lower part of the entire three-dimensional floating sink 1 in water. The lower center stabilizing weight 6 is disposed directly below the center of gravity of the whole of the three-dimensional floating sink 1 and always generates a downward force due to the weight of the weight, so that the upper center generates the upward force. By cooperating with the stabilizer 5, the lower part of the entire three-dimensional floating sink 1 is stabilized in water so that no vertical moment is generated in the entire three-dimensional floating sink 1.

次に、上記発明を実施するための形態の構成に基づく作用について以下説明する。
現場近くの陸上で、浮沈式生け簀１を組み立てた後、クレーンで吊って海水中または淡水中に入れ、これを船で曳航して、所定の水域に移動する。この場合には、水面に浮くように、上部枠体２と必要に応じて配置された上部中央安定体５にはそれぞれ空気を入れておき、浮力がそれぞれ働くようにしておく。 Next, the operation based on the configuration of the embodiment for carrying out the invention will be described.
After assembling the floating sink 1 on land near the site, it is hung with a crane and placed in seawater or freshwater, and it is towed by a ship and moved to a predetermined water area. In this case, air is put in the upper frame 2 and the upper central stabilizer 5 arranged as necessary so that it floats on the water surface so that the buoyancy works.

現場の水域で、浮沈式生け簀１を必要に応じて、沈めたり浮かしたりする時には、コンプレッサーを使って上部枠体２の浮力調整室２１と必要に応じて配置された上部中央安定体５に空気を入れ、浮力調整室２１から空気を放出したい場合には開閉弁２４を開くと、水出入用ホース２５から海水叉は淡水が流入し、流入する海水叉は淡水によって空気は外部に放出される。   When sinking or floating the floating sink 1 in the water area of the site as necessary, air is supplied to the buoyancy adjustment chamber 21 of the upper frame 2 and the upper central stabilizer 5 arranged as necessary using a compressor. In order to release air from the buoyancy adjustment chamber 21, when the on-off valve 24 is opened, seawater or fresh water flows from the water in / out hose 25, and air flows into the seawater fork that flows into the sea. .

そして、浮沈式生け簀１を沈めたい場合には、空気出入用パイプ２３の開閉弁２４を開けると、浮力調整室２１内の空気より海水叉は淡水の圧力が勝るため、水出入用ホース２５から海水または淡水が入る。浮力調整室２１内の空気は流入する海水叉は淡水によって押圧されて開いた開閉弁２４から空気出入用パイプ２３を通じて外部に放出され、浮力調整室２１内には、水出入用ホース２５を通じて流入する海水または淡水で満たされる。これにより、上部枠体２の比重が、海水または淡水より重たくなるため、浮沈式生け簀１は水面下に沈む。   If the open / close valve 24 of the air inlet / outlet pipe 23 is opened when the float / sink type sacrifice 1 is desired to be submerged, the pressure of seawater fork and fresh water is higher than the air in the buoyancy adjustment chamber 21. Seawater or fresh water enters. The air in the buoyancy adjustment chamber 21 is discharged to the outside through the air inlet / outlet pipe 23 from the open / close valve 24 that is opened by pressing the inflow seawater fork or fresh water, and flows into the buoyancy adjustment chamber 21 through the water in / out hose 25. Filled with seawater or fresh water. Thereby, since the specific gravity of the upper frame 2 becomes heavier than seawater or fresh water, the floating sink 1 sinks below the surface of the water.

反対に、水面下に沈んでいる浮沈式生け簀１を浮上させたい場合には、図示しないコンプレッサーを使って、浮力調整室２１の内部に空気を圧入する。また、必要に応じて配置された上部中央安定体５にも空気を圧入する。圧入された空気は空気出入用パイプ２３を通じて、浮力調整室２１内に入る。浮沈式生け簀１が水面下に沈んでいる場合には、開閉弁２４は開いたままの状態にあるので、開閉弁２４を開ける必要はない。   On the other hand, when it is desired to float the floating sink 1 that is sinking under the surface of the water, air is pressed into the buoyancy adjusting chamber 21 using a compressor (not shown). Further, air is also injected into the upper central stabilizer 5 arranged as necessary. The injected air enters the buoyancy adjusting chamber 21 through the air inlet / outlet pipe 23. When the floating sacrificial cage 1 is submerged below the surface of the water, it is not necessary to open the on-off valve 24 because the on-off valve 24 remains open.

空気出入用パイプ２３を通じて空気を圧入すると、空気出入用パイプ２３の先端から浮力調整室２１内に空気が流入し始める。そして、流入した空気は、浮力調整室２１の内部の海水または淡水に圧力をかける。空気は海水または淡水より軽いため、海水または淡水の上方に位置し、その上方から下方の海水叉は淡水に向かって圧力を及ぼして押圧する。   When air is press-fitted through the air in / out pipe 23, the air starts to flow into the buoyancy adjusting chamber 21 from the tip of the air in / out pipe 23. The inflowing air applies pressure to seawater or fresh water inside the buoyancy adjustment chamber 21. Since air is lighter than seawater or freshwater, it is positioned above seawater or freshwater, and the seawater fork below it exerts pressure on freshwater and presses it.

押圧された海水叉は淡水は、下部に取り付けられている水出入用ホース２５から、海水中叉は淡水に強制的に排出される。そして、浮力調整室２１が所定量の空気で満たされて浮力が発生したら、開閉弁２４を閉める。浮力調整室２１内の空気の圧力は水出入用ホース２５から流入しようとする海水叉は淡水の水圧よりも高いため、海水叉は淡水は開通している水出入用ホース２５を通じて流入することはない。これにより、水面下の浮沈式生け簀１は上昇して、水面上に浮き上がるのである。   The pressed seawater fork and fresh water are forcibly discharged into the seawater fork and fresh water from the water in / out hose 25 attached to the lower part. When the buoyancy adjustment chamber 21 is filled with a predetermined amount of air and buoyancy is generated, the on-off valve 24 is closed. Since the pressure of the air in the buoyancy adjustment chamber 21 is higher than the water pressure of seawater fork that is about to flow in from the water in / out hose 25, seawater fork or fresh water cannot flow in through the open / close water hose 25. Absent. As a result, the floating sink 1 below the water surface rises and floats on the water surface.

空気出入用パイプ２３を通じて浮力調整室２１の内部に空気を圧入する場合において、浮力調整室２１が設けられた上部枠体２には、上向きの力Σｆｉが生じる（図８参照）。上向きの力ｆｉは分割された各浮力調整室２１に作用する力であり、上部枠体２の全体には、これらの各力ｆｉを合計した上向きの力Σｆｉが生じることになる。   When air is pressed into the buoyancy adjustment chamber 21 through the air inlet / outlet pipe 23, an upward force Σfi is generated in the upper frame 2 provided with the buoyancy adjustment chamber 21 (see FIG. 8). The upward force fi is a force acting on each of the divided buoyancy adjustment chambers 21, and an upward force Σfi that is the sum of these forces fi is generated in the entire upper frame 2.

また、必要に応じて環状中央に上部中央安定体５が配置されている場合には、この上向きの力Σｆｉに加えて、その環状中央に配置された上部中央安定体５には空気が圧入されて浮力が生じて、上向きの力Ｆ１が生じる。このときには上向きの力はΣｆｉ＋Ｆ１となる（図９参照）。   In addition, when the upper central stabilizer 5 is arranged at the annular center as required, in addition to the upward force Σfi, air is pressed into the upper central stabilizer 5 arranged at the annular center. As a result, buoyancy is generated and an upward force F1 is generated. At this time, the upward force is Σfi + F1 (see FIG. 9).

上向きの力Σｆｉが生じる上部枠体２及び上向きの力Ｆ１が生じる上部中央安定体５は立体型の浮沈式生け簀１の重心位置Ｇの真上の上方に位置し、また、浮沈式生け簀１の重心位置Ｇの真下の下方には、自重によって常に下向きの力Ｆ２が生じている下部中央安定用錘６が配置されている。このとき、浮沈式生け簀１の重心位置Ｇには、浮沈式生け簀１の自重によって常に下向きの力Ｆ３が生じている。   The upper frame body 2 in which the upward force Σfi is generated and the upper central stabilizer 5 in which the upward force F1 is generated are located directly above the gravity center position G of the three-dimensional floating sink 1 and the floating sink 1 Below the center of gravity position G is disposed a lower center stabilizing weight 6 in which a downward force F2 is always generated by its own weight. At this time, a downward force F3 is always generated at the center of gravity G of the floating sink 1 due to its own weight.

このため、立体型の浮沈式生け簀１の中心部には、その上部側に上部枠体２及び上部中央安定体５による上向きの力Σｆｉ＋Ｆ１が生じ、その下部側に下向きの力Ｆ２が生じるため、上下に回転する方向にモーメントは生ぜず、逆に、生け簀全体を上下向きに回転するのを阻止する方向にモーメントが発生するので、生け簀１の昇降時に生け簀１の上部側が傾くのを確実に防止することができる。   For this reason, an upward force Σfi + F1 due to the upper frame 2 and the upper central stabilizer 5 is generated at the upper side of the center of the three-dimensional floating sink 1 and a downward force F2 is generated at the lower side thereof. No moment is generated in the direction of rotating up and down, and conversely, a moment is generated in a direction that prevents the entire bowl from rotating up and down, so that the upper side of the bowl 1 is reliably prevented from tilting when the bowl 1 is raised and lowered. can do.

また、環状中央に上部中央安定体５が配置されている場合、立体型の浮沈式生け簀１の中心部には、その上部側に上部中央安定体５による上向きの力Ｆ１が生じ、その下部側に下向きの力Ｆ２が生じるため、上下に回転する方向にモーメントは生ぜず、逆に、生け簀全体を上下向きに回転するのを阻止する方向にモーメントが発生するので、生け簀１の昇降時に生け簀１の上部側が傾くのを確実に防止することができ、空気の排出時に傾いた浮力調整室２１の内部に空気が残留して、浮沈式生け簀１が沈下しなかったり、空気の圧入時に傾いた浮沈式生け簀１の底部側に海水叉は淡水が残留して浮上しないという不都合が生じることはない。   Further, when the upper center stabilizer 5 is arranged at the center of the ring, an upward force F1 by the upper center stabilizer 5 is generated on the upper side of the center portion of the three-dimensional floating sink 1 and the lower side thereof. Since a downward force F2 is generated, no moment is generated in the direction of rotating up and down, and conversely, a moment is generated in the direction of preventing the entire sacrifice from rotating up and down. Can be reliably prevented from tilting, and air remains in the buoyancy adjustment chamber 21 tilted when the air is discharged, so that the floating sacrificial cage 1 does not sink or tilts when the air is injected. There is no inconvenience that the seawater fork remains on the bottom side of the formula sacrifice 1 and fresh water does not float.

なお、この発明は上記発明を実施するための形態に限定されるものではなく、この発明の精神を逸脱しない範囲で種々の改変をなし得ることは勿論である。平面が環状の上部枠体２及び下部枠体３の形状を円周形の場合で説明したが、これに限定されるものではなく、例えば正多角形や楕円形でもよい。また、水面が安定する穏やかな海域で浮沈式生け簀１を使用する場合においては、図１、図２に図示するように、必要に応じて上部中央安定体５及び索状５１は省略されることもある。   The present invention is not limited to the embodiment for carrying out the invention, and it goes without saying that various modifications can be made without departing from the spirit of the invention. The shapes of the upper frame body 2 and the lower frame body 3 whose planes are annular have been described as being circular, but are not limited to this, and may be, for example, a regular polygon or an ellipse. Moreover, when using the floating sink 1 in a calm sea area where the water surface is stable, as shown in FIGS. 1 and 2, the upper central stabilizer 5 and the cable 51 are omitted as necessary. There is also.

１ 浮沈式生け簀
１１ 索状
１１ａ 索状
２ 上部枠体
２ａ 手摺
２１ 浮力調整室
２２ 仕切り
２３ 空気出入用パイプ
２４ 開閉弁
２５ 水出入用ホース
３ 下部枠体
４ ネット
５ 上部中央安定体
５１ 索状
６ 下部中央安定用錘
６１ 索状
６２ 錘枠体
６３ 蓋体
６４ ボルト・ナット
６５ 連結受具
ｆｉ 上部枠体の各浮力調整室による上向きの力
Σｆｉ 上部枠体による上向きの力
Ｆ１ 上部中央安定体による上向きの力
Ｆ２ 下部中央安定用錘による下向きの力
Ｆ３ 浮沈式生け簀の自重方向
Ｇ 浮沈式生け簀の重心位置 DESCRIPTION OF SYMBOLS 1 Floating and sinking type sacrifice 11 Cable shape 11a Cable shape 2 Upper frame 2a Handrail 21 Buoyancy adjustment chamber 22 Partition 23 Air inlet / outlet pipe 24 Opening / closing valve 25 Water inlet / outlet hose 3 Lower frame 4 Net 5 Upper center stabilizer 51 Cable 6 Lower center stabilizing weight 61 Cable-like 62 Weight frame 63 Lid 64 Bolt / nut 65 Connection receiver fi Upward force by each buoyancy adjustment chamber of upper frame Σfi Upward force by upper frame F1 By upper central stabilizer Upward force F2 Downward force due to lower center stabilization weight F3 Self-weight direction of floating sink G Gagcentric position of floating sink

以上の課題を達成するために、請求項１の発明は、上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を、下部枠体に複数の索状によって側面からみて下向きにＶ字型に撓んだ状態で取り付けて配置した手段よりなるものである。 In order to achieve the above-mentioned problems, the invention of claim 1 is composed of an upper frame body and a lower frame body, and includes an inner side of the upper frame body, an inner side of the lower frame body, and between the upper frame body and the lower frame body. In a cage with nets attached to each side surface, the inside of the annular upper frame body is formed hollow as seen from the plane, the hollow interior is partitioned into multiple parts, and buoyancy is achieved by taking air and seawater into and out of the partitioned internal space. Lower center stabilization weight that provides a buoyancy adjustment chamber that adjusts the bottom of the three-dimensional sacrifice under the surface of the water at the annular center of the lower frame located below the upper frame. Is attached to the lower frame body by means of a plurality of cords and bent in a V-shape downward when viewed from the side surface .

また、以上の課題を達成するために、請求項２の発明は、上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の環状中心部に立体型の生け簀全体の上部側を水面上で浮力により水平に安定させる上部中央安定体を配置し、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を、下部枠体に複数の索状によって側面からみて下向きにＶ字型に撓んだ状態で取り付けて配置した手段よりなるものである。
また、以上の課題を達成するために、請求項３の発明は、上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を発泡剤からなる仕切りで複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の環状中心部に立体型の生け簀全体の上部側を水面上で浮力により水平に安定させる上部中央安定体を配置し、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を、下部枠体に複数の索状によって側面からみて下向きにＶ字型に撓んだ状態で取り付けて配置した手段よりなるものである。 In order to achieve the above object, the invention of claim 2 is composed of an upper frame and a lower frame, and includes an inner side of the upper frame, an inner side of the lower frame, and an upper frame and a lower frame. In a cage with nets attached to each side circumferential surface, the inside of the annular upper frame body is formed hollow as seen from the plane, the hollow interior is partitioned into a plurality of parts, and air and seawater are taken in and out of the partitioned internal space The buoyancy adjustment chamber for adjusting the buoyancy is provided in each, and the upper center stabilizer that stabilizes the upper part of the whole three-dimensional ginger horizontally on the water surface by buoyancy is arranged in the annular center part of the upper frame. The lower center stabilization weight that stabilizes the lower part of the whole three-dimensional sacrifice under the water surface by weight under the annular center part of the lower frame located on the lower side of the lower frame, as seen from the side with multiple cords on the lower frame Take the state of bending downward in a V shape Only to those made of means disposed.
In order to achieve the above object, the invention of claim 3 is composed of an upper frame body and a lower frame body, and includes an inner side of the upper frame body, an inner side of the lower frame body, and an upper frame body and a lower frame body. In the sacrifice with nets attached to the respective side circumferential surfaces between them, the interior of the annular upper frame body is formed hollow as viewed from the plane, and the hollow interior is divided into a plurality of partitions made of a foaming agent, and the partitioned internal space A buoyancy adjustment chamber that adjusts the buoyancy by taking in and out air and seawater is provided in each, and an upper central stabilizer that stabilizes the upper side of the whole three-dimensional sacrifice on the water surface horizontally by buoyancy at the annular center part of the upper frame body A plurality of lower center stabilizing weights are arranged on the lower frame to stabilize the lower side of the entire three-dimensional sacrifice under the water surface by the weight at the annular central portion of the lower frame located on the lower side of the upper frame. V-shaped downward as viewed from the side Those composed of means disposed mounted in a bent state in a mold.

課題を解決するための手段よりなる請求項２〜請求項３の発明に係る浮沈式生け簀によれば、生け簀の上部枠体に浮力により上向きの力を生じさせ且つ生け簀の上部枠体の中心部に配置した上部中央安定体に浮力により上向きの力を生じさせると共に、下部枠体の中心部の下方に下部中央安定用錘による下向きの力を生じさせることにより、生け簀全体の重心位置より上方に位置する上部枠体及び上部中央安定体には浮力によって上向き方向に力が作用し、また、その重心位置より下方に位置する下部中央安定用錘には自重によって下向き方向に力が作用する。
このように、生け簀全体の重心位置を基準に考えると、その上方側では上部枠体及び上部中央安定体の浮力による上向きの力が作用し、その下方側では下部中央安定用錘による下向きの力が作用するため、水面が安定した穏やかな海域ばかりでなく、特に上部中央安定体の働きによって水面が波立つ海域においても、生け簀全体を上下向きに回転させるモーメントが発生することがなく、逆に、生け簀全体を上下向きに回転するのを阻止する方向にモーメントが発生するので、生け簀の昇降時に生け簀の上部側が傾くのをより確実に防止することができる。
これに加えて、立体型の浮沈式生け簀の中心部には、その上部側に上部中央安定体による上向きの力が生じるので、生け簀の昇降時に生け簀の上部側が傾くのを確実に防止することができ、空気の排出時に傾いた浮力調整室の内部に空気が残留して、浮沈式生け簀が沈下しなかったり、空気の圧入時に傾いた浮沈式生け簀の底部側に海水叉は淡水が残留して浮上しないという不都合が生じることもない等、極めて新規的有益なる効果を奏するものである。 According to the floating type sink according to the inventions of claims 2 to 3 , which comprises means for solving the problem, an upward force is generated by buoyancy in the upper frame of the sacrifice and the central portion of the upper frame of the sacrifice The upper center stabilizer placed on the upper frame generates an upward force by buoyancy, and a downward force is generated by the lower center stabilization weight below the center of the lower frame, so that it is above the center of gravity of the whole sacrifice. A force is applied to the upper frame body and the upper center stabilizer located in the upward direction by buoyancy, and a force is applied to the lower center stabilization weight located below the center of gravity position in the downward direction by its own weight.
Thus, considering the center of gravity of the entire sacrificial ginger as a reference, upward force due to the buoyancy of the upper frame and upper center stabilizer acts on the upper side, and downward force due to the lower center stabilization weight on the lower side. Therefore, not only in calm waters where the water surface is stable, but also in waters where the water surface is waved by the action of the upper central stabilizer, there is no moment to rotate the whole sacrifice vertically, Since a moment is generated in a direction that prevents the entire sacrifice from rotating up and down, it is possible to more reliably prevent the upper side of the sacrifice from being tilted when the sacrifice is raised or lowered.
In addition, an upward force is generated by the upper center stabilizer on the upper side of the center part of the three-dimensional floating sink, so that it is possible to reliably prevent the upper side of the sacrifice from tilting when the cage is raised or lowered. The air remains in the tilted buoyancy adjustment chamber that is tilted when the air is discharged, and the floating and sinking cage does not sink, or seawater or fresh water remains on the bottom of the tilting and sinking cage that is tilted when the air is injected. There is an extremely new beneficial effect such as no inconvenience of not rising.

Claims (3)

上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を配置したことを特徴とする浮沈式生け簀。 Seen from the plane, in a cage composed of an upper frame and a lower frame, with nets attached to the inside of the upper frame, the inside of the lower frame, and the side peripheral surface between the upper frame and the lower frame. The inside of the annular upper frame is formed hollow, the hollow interior is partitioned into a plurality of parts, and a buoyancy adjustment chamber is provided in the partitioned internal space to adjust the buoyancy by taking in and out air and seawater. Floating and sinking type sacrificial cage characterized in that a lower center stabilizing weight for stabilizing the lower part of the entire three-dimensional sacrificial body under the water surface by the weight is arranged in the annular center part of the lower frame located on the side. 上部枠体と下部枠体から構成され、上部枠体の内側及び下部枠体の内側並びに上部枠体と下部枠体との間の側周面にそれぞれネットが取り付けられた生け簀において、平面からみて環状の上部枠体の内部を中空に形成し、中空の内部を複数に仕切り、仕切られた内部空間に空気及び海水の出し入れで浮力の調整を図る浮力調整室をそれぞれ設け、上部枠体の環状中心部に立体型の生け簀全体の上部側を水面上で浮力により水平に安定させる上部中央安定体を配置し、上部枠体の下方側に位置する下部枠体の環状中心部に立体型の生け簀全体の下部側を水面下で重さにより安定させる下部中央安定用錘を配置したことを特徴とする浮沈式生け簀。 Seen from the plane, in a cage composed of an upper frame and a lower frame, with nets attached to the inside of the upper frame, the inside of the lower frame, and the side peripheral surface between the upper frame and the lower frame. The inside of the annular upper frame is formed hollow, the hollow interior is divided into a plurality of parts, and a buoyancy adjustment chamber is provided in the partitioned internal space to adjust the buoyancy by taking in and out air and seawater. An upper center stabilizer that stabilizes the upper part of the entire three-dimensional sacrifice on the water surface horizontally by buoyancy is placed in the center, and the three-dimensional sacrifice is located in the annular center of the lower frame located below the upper frame. A floating sink that features a lower center stabilization weight that stabilizes the lower part of the whole under the surface of the water by weight. 上部枠体の各浮力調整室の上部に空気の出し入れのための空気出入用パイプを設けると共に空気出入用パイプに開閉弁を取り付け、各浮力調整室の下部に海水叉は淡水の出し入れのための水出入用ホースを設けた請求項１叉は請求項２に記載の浮沈式生け簀。 An air inlet / outlet pipe is provided at the top of each buoyancy adjustment chamber of the upper frame, and an open / close valve is attached to the air inlet / outlet pipe. The float-and-sink type sacrifice according to claim 1 or claim 2, wherein a water in / out hose is provided.
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JP2019512223A (en) * 2016-03-07 2019-05-16 エイカー ソリューションズ エーエス Semi-submersible aquaculture system
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