JPH03251130A - Floating frame - Google Patents
Floating frameInfo
- Publication number
- JPH03251130A JPH03251130A JP2050641A JP5064190A JPH03251130A JP H03251130 A JPH03251130 A JP H03251130A JP 2050641 A JP2050641 A JP 2050641A JP 5064190 A JP5064190 A JP 5064190A JP H03251130 A JPH03251130 A JP H03251130A
- Authority
- JP
- Japan
- Prior art keywords
- floating frame
- floating
- frame
- force
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007667 floating Methods 0.000 title claims abstract description 91
- 239000013013 elastic material Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000004677 Nylon Substances 0.000 abstract description 2
- 229920001778 nylon Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 3
- 241000251468 Actinopterygii Species 0.000 description 13
- 235000015170 shellfish Nutrition 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000009360 aquaculture Methods 0.000 description 4
- 244000144974 aquaculture Species 0.000 description 4
- 238000009313 farming Methods 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 240000000907 Musa textilis Species 0.000 description 1
- 241001600434 Plectroglyphidodon lacrymatus Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、魚介類養殖用のいけす網や、各種水中土木
工事の際に汚濁水の発生源を囲う拡散防止膜等を、水中
に懸垂支持するための浮揚枠体に関するものである。[Detailed Description of the Invention] <Industrial Application Field> This invention is a method for suspending cage nets for fish and shellfish farming, diffusion prevention membranes, etc. that surround the source of polluted water during various underwater civil engineering works, etc. It relates to a floating frame for support.
〈従来の技術〉
従来、いけすによる魚介類の養殖は、主として波の静か
な湾内等において行われてきた。しかし、最近では、い
けすの増加による養殖場の不足、長年の養殖により養殖
場の水底に沈澱する飼料や魚のふん、死骸等のヘドロの
問題、或いは、ハマチ、マグロ等の大型回遊魚が養殖可
能になったことによるいけすの大型化等に伴って、外洋
の影響を受は易い湾外でのでの養殖や、湾内と湾外とを
移動しなからの養殖が行われるようになってきた。<Conventional Technology> Traditionally, fish and shellfish farming in cages has been carried out mainly in bays with calm waves. However, in recent years, there have been problems such as a shortage of fish farms due to the increase in the number of fish cages, sludge such as feed, fish feces, and carcasses that settle on the bottom of the water at farms due to years of farming, and the possibility of farming large migratory fish such as yellowtail and tuna. With the increase in the size of fish cages, fish farming has begun to be carried out outside the bay, where fish are easily affected by the open ocean, or without moving fish between the bay and outside the bay.
ところが、従来、上記いけすにおいては、例えば特開昭
５２−１６３９８号公報、特開昭５２−３０６９５号公
報等に示されているように、いけす網を水中に懸垂支持
するための浮揚枠体として、多数の樽状のフロートを金
属パイプ等で接続した剛構造のものか使用されており、
波浪による力が枠部材に直接作用するために、波の荒い
湾外で使用すると破損するという問題かあった。However, conventionally, in the above-mentioned fisheries, as shown in, for example, JP-A-52-16398, JP-A-52-30695, etc., floating frames for suspending and supporting the fishnet in the water have been used. , a rigid structure consisting of many barrel-shaped floats connected with metal pipes, etc., is used.
Since the force of the waves acts directly on the frame members, there was a problem that they would break if used outside the bay with rough waves.
そこで、まず、金属材料からなる剛体構造の浮揚枠体の
使用が試みられた。ところが、特に湾外における波は極
めて複雑、且つ強大な応力を枠体に及はすので、台風等
の高波による破損を防止するには、剛性の高い船体構造
のようにするか、もしくは海上リグ構造のようにする必
要があり、極めて大型の枠体が必要であった。上記のよ
うな大型の枠体を用いた、大規模な養殖は、海外におい
て行われているが、特に日本で主流を占める中小、或い
は零細規模の養殖には、養殖場の容積の問題やコストの
点て適さないものであった。Therefore, first attempts were made to use a floating frame with a rigid structure made of a metal material. However, waves especially outside the bay are extremely complex and exert a strong stress on the frame, so in order to prevent damage from high waves such as typhoons, it is necessary to build a highly rigid hull structure or build a marine rig. It was necessary to have a similar structure, and an extremely large frame was required. Large-scale aquaculture using large frames such as those mentioned above is carried out overseas, but small-to-medium-sized or micro-scale aquaculture, which is the mainstream in Japan, has problems such as the capacity of the farm and the cost. It was not suitable for this purpose.
そこで、複雑な風波によって生じる、主として鉛直方向
の応力に対して柔軟に対応し得るよう、主要部分がゴム
等の弾性材料で形成された浮揚枠体を用いたいけすが種
々提案された（例えば特公表昭６１−５０１３６６号公
報、実公昭６０−２７６９号公報等参照）。Therefore, various cages using floating frames whose main parts are made of elastic materials such as rubber have been proposed (for example, special (See Publication No. 61-501366, Japanese Utility Model Publication No. 60-2769, etc.).
また、上記浮揚枠体は、海底浚渫工事、埋め立て工事等
の各種の水中土木工事の際に、汚濁水が水中に拡散する
ことを防止するため、上記汚濁水の発生源を囲う、ゴム
引布等からなる拡散防止膜を水中に懸垂支持するために
も用いられる。In addition, the floating frame is equipped with a rubber-coated cloth that surrounds the source of the polluted water in order to prevent polluted water from dispersing into the water during various underwater civil engineering works such as seabed dredging and reclamation work. It is also used to suspend and support diffusion prevention membranes made of etc. in water.
〈発明が解決しようとする課題〉
ところが、上記柔軟な浮揚枠体は、断面がほぼ円形であ
り、水平方向の応力に対しても柔軟であるため、潮流や
、横からの風波、或いは、曳船による曳航時等、水平方
向からの力が加えられると、枠体形状か大きく変形する
という問題かある。<Problems to be Solved by the Invention> However, the above-mentioned flexible floating frame has a nearly circular cross section and is flexible against stress in the horizontal direction, so it is susceptible to tidal currents, wind waves from the side, or tugboats. There is a problem in that when a force is applied from the horizontal direction, such as when being towed by a ship, the shape of the frame deforms significantly.
いけすにおいては、通常、養殖の効率を高めるために、
収容限度に近い密度の魚介類がいけす網の中で飼育され
ており、水平方向の力によって枠体か大きく変形すると
、その下に懸垂支持されたいけす網の容積か著しく減少
して、魚介類が収容限度を超えて詰め込まれた状態とな
り、酸素欠乏等によって魚介類の死亡率が上昇する虞が
ある。In cages, in order to increase the efficiency of aquaculture,
When fish and shellfish are raised in a cage net at a density close to the carrying limit, and the frame deforms significantly due to horizontal force, the volume of the cage net suspended below it decreases significantly, causing the fish and shellfish to There is a risk that fish and shellfish will be crammed beyond their capacity, and the mortality rate of fish and shellfish will increase due to lack of oxygen.
また、汚濁水の拡散防止膜においては、通常、当該拡散
防止膜の下辺と水底とを密着させることが困難で、両者
の間には隙間か存在するため、水平方向の力によって枠
体が大きく変形すると、上記隙間から汚濁水が外部に拡
散する虞がある。In addition, in the case of membranes for preventing diffusion of polluted water, it is usually difficult to bring the lower side of the diffusion prevention membrane and the bottom of the water into close contact, and there is a gap between the two, so the frame body can become large due to horizontal force. If it deforms, there is a risk that contaminated water will diffuse outside from the gap.
水平方向の力によって浮揚枠体か大きく変形することを
防止するため、通常は、水底に投錨した複数のアンカー
と、ローブやチェーン等の係留索によって、上記浮揚枠
体を周囲から展張状態で係留することが行われているが
、係留点か多いほど、浮揚枠体の変形の自由度が制限さ
れるので、例えば台風等によって生じる非常に大きい波
浪状態では、浮揚枠体に無理な力が加わって、破損を生
じる虞がある。また、展張状態を維持しつつ係留するに
は多数のアンカーやロープ、チェーン等か必要であるた
め、コストの点て問題となる。また、係留索は、満潮時
に最大波高がかかる時の長さに合わせて設計するために
、通常時にはたるみかあり、たるみの範囲内で浮揚枠体
が変形しやすい。In order to prevent the floating frame from being significantly deformed by horizontal forces, the floating frame is normally moored in a stretched state from its surroundings using multiple anchors anchored to the bottom of the water and mooring ropes such as lobes or chains. However, the more mooring points there are, the more limited the degree of freedom of deformation of the buoyant frame becomes.For example, in extremely large wave conditions caused by a typhoon, excessive force is applied to the buoyant frame. There is a risk of damage. In addition, many anchors, ropes, chains, etc. are required to maintain the expanded state and moor the ship, which poses a problem in terms of cost. Furthermore, because the mooring lines are designed to match the length of the maximum wave height at high tide, there is some slack under normal conditions, and the floating frame is likely to deform within the slack range.
この発明は、以上の事情に鑑みてなされたものであって
、主として鉛直方向の力に対して柔軟に対応し得ると共
に、水平方向の力に対して変形し難い浮揚枠体を提供す
ることを目的としている。The present invention has been made in view of the above circumstances, and aims to provide a floating frame body that can flexibly respond mainly to vertical forces and is difficult to deform due to horizontal forces. The purpose is
く課題を解決するための手段〉
上記課題を解決するための、この発明の浮揚枠体は、ゴ
ム等の弾性材料にて棒状または筒状に形成された浮揚枠
部材を複数本、略円形に接続してなる浮揚枠体の少なく
とも２点間に、当該浮揚枠体の変形を抑制する、伸長方
向に弾性変形可能な索状体を張り渡したことを特徴とし
ている。Means for Solving the Problems> In order to solve the above problems, the floating frame of the present invention includes a plurality of floating frame members each formed into a rod shape or a cylinder shape from an elastic material such as rubber, in a substantially circular shape. The present invention is characterized in that a cable-like body that can be elastically deformed in the direction of extension is stretched between at least two points of the connected floating frames to suppress deformation of the floating frames.
〈作用〉
上記構成からなる、この発明の浮揚枠体においては、略
円形の浮揚枠体が水平方向の力を受けると、この浮揚枠
体の少なくとも２点間に張り渡した索状体が、伸長方向
への力を受けて応力を生じ、上記方向への浮揚枠体の変
形を抑制する。<Operation> In the floating frame of the present invention having the above configuration, when the approximately circular floating frame receives a horizontal force, the cable-like body stretched between at least two points of the floating frame A stress is generated in response to a force in the elongation direction, and the deformation of the floating frame body in the above direction is suppressed.
〈実施例〉
以下、この発明の浮揚枠体を、実施例を示す図面を参照
しつつ説明する。<Example> Hereinafter, a floating frame of the present invention will be described with reference to drawings showing examples.
第１図に示すように、この実施例の浮揚枠体Ａは、いけ
す網Ｂを水中に懸垂支持するためのいけすに用いられて
いる。図中Ｃは、上記浮揚枠体Ａを所定位置に係留する
ため、図示しないアンカーと浮揚枠体Ａとを繋ぐ係留索
を示している。係留索Ｃは、後述するように、この実施
例の浮揚枠体Ａが、水平方向の力に対して変形しにくい
ため、従来のように複数本必要でなく、同図に示すよう
に１本でも係留可能である。As shown in FIG. 1, the floating frame body A of this embodiment is used for a cage for suspending and supporting a fishnet B in water. In the figure, C indicates a mooring cable that connects an anchor (not shown) to the floating frame A in order to moor the floating frame A at a predetermined position. As will be described later, the floating frame body A of this embodiment is not easily deformed by horizontal forces, so there is no need for a plurality of mooring lines C as in the conventional case, but only one mooring line C as shown in the figure. However, it can be moored.
上記浮揚枠体Ａは、第３図に示すように、ゴム等の弾性
材料からなる筒状の本体１１と、この本体１１の両端部
（図では片方の端部のみを示す）に設けられたフランジ
金具１２とを有する直線状の浮揚枠部材１を、第１図お
よび第２図に示すように複数本（図では６本）、湾曲さ
せた状態で、それぞれのフランジ金具１２．１２・・・
を介して連結することで、円形に構成されている。As shown in FIG. 3, the floating frame A includes a cylindrical main body 11 made of an elastic material such as rubber, and a cylindrical main body 11 provided at both ends of the main body 11 (only one end is shown in the figure). As shown in FIGS. 1 and 2, a plurality of linear floating frame members 1 having flange fittings 12 (six pieces in the figure) are bent, and each flange fitting 12, 12...・
They are connected through a circular structure.
上記のように、直線状の浮揚枠部材１を複数本、湾曲さ
せた状態で円形に接続した場合には、それぞれの浮揚枠
部材１が直線状に戻ろうとする力か釣り合って、浮揚枠
体Ａを円形に保持しようとする力が高まり、後述する索
状体２，２・・・の作用を助けて、浮揚枠体Ａを、水平
方向の力に対して、さらに変形し難いものにできるとい
う利点がある。As described above, when a plurality of straight floating frame members 1 are connected in a circular shape in a curved state, the forces of each floating frame member 1 to return to the straight shape are balanced, and the floating frame members 1 The force that tries to hold A in a circular shape increases, and by helping the action of the cable-like bodies 2, 2, etc., which will be described later, the floating frame A can be made more difficult to deform against horizontal forces. There is an advantage.
なお、上記浮揚枠部材１の本体１１内には、第３図に示
すように、本体１１の内周面の近傍に筒状に配列した、
多数の繊維または金属線からなる補強コード層１３と、
この補強コード層の外周を囲繞する螺旋状の金属線１４
とが埋め込まれており、上述した、浮揚枠部材１が直線
に戻ろうとする力を高めるために作用している。In addition, in the main body 11 of the floating frame member 1, as shown in FIG.
A reinforcing cord layer 13 made of a large number of fibers or metal wires,
A spiral metal wire 14 surrounding the outer periphery of this reinforcing cord layer
is embedded, and acts to increase the above-mentioned force that causes the floating frame member 1 to return to a straight line.
上記浮揚枠体Ａには、フランジ金具１２．１２による浮
揚枠部材１，１・・・の６つの接続部り、 Ｄ・・・の
うち、浮揚枠体Ａの円の中心を挾んで対称位置の３組の
接続部り、Ｄ同士の間に、３本の索状体２，２・・・が
張り渡されている。The above-mentioned floating frame A has six connection parts of the floating frame members 1, 1, . Three cable-like bodies 2, 2, . . . are stretched between the three sets of connecting portions D.
上記索状体２，２・・・は、伸長方向に弾性変形可能に
形成されている。上記索状体２としては、ナイロンロー
プ、ポリエステルロープ、マニラ麻ロープ等の繊維製の
ロープや、ゴムロープ、繊維補強したゴムロープ等が好
適に使用される。また、上記索状体２としては、伸長方
向への変形量が小さいワイヤロープや鎖と、コイルバネ
等の弾性体とを組み合わせたものを使用することもてき
る。The cable-shaped bodies 2, 2, . . . are formed to be elastically deformable in the direction of extension. As the cable-shaped body 2, fiber ropes such as nylon ropes, polyester ropes, Manila hemp ropes, rubber ropes, fiber-reinforced rubber ropes, and the like are preferably used. Further, as the cable-shaped body 2, a combination of a wire rope or chain that is deformed in the direction of extension with a small amount and an elastic body such as a coil spring can be used.
索状体２，２・・・が、伸長方向に弾性変形可能なもの
に限定されるのは、以下の理由による。The reason why the cord-like bodies 2, 2, . . . is limited to those that can be elastically deformed in the direction of extension is as follows.
すなわち、上記索状体に代えて、鉄棒、鋼管、角鋼等の
、殆ど変形しない剛体を使用した場合には、浮揚枠体Ａ
に水平方向の力が加えられると、浮揚枠体Ａが圧縮され
る方向において、上記剛体が圧縮力によって座屈する危
険性がある。座屈を防止するために剛体の強度を高めよ
うとすると、断面の大きいものを使う必要か生じ、重量
の増加とコストアップとを引き起こして小規模な養殖に
適さないものとなる。That is, if a rigid body that hardly deforms, such as an iron rod, a steel pipe, or a square steel, is used instead of the cable-like body, the floating frame A
If a horizontal force is applied to , there is a risk that the rigid body will buckle due to the compressive force in the direction in which the floating frame A is compressed. If an attempt is made to increase the strength of a rigid body to prevent buckling, it becomes necessary to use a rigid body with a large cross section, which increases weight and cost, making it unsuitable for small-scale aquaculture.
一方、鎖やワイヤローブ等の、伸長方向に殆ど変形しな
い索体を使用した場合には、浮揚枠体Ａに水平方向の力
が加えられた際に、上記水平方向の力か、浮揚枠体Ａに
衝撃的に作用して、浮揚枠体Ａを破損する虞がある。On the other hand, if a cable such as a chain or wire robe that hardly deforms in the elongation direction is used, when a horizontal force is applied to the flotation frame A, the horizontal force or the flotation frame A There is a possibility that the flotation frame A may be damaged due to the impact acting on the flotation frame A.
これに対し、伸長方向に弾性変形可能な索状体２．２・
・・を用いた場合には、例えば第２図中に白矢印で示す
水平方向の力が加えられると、上記白矢印と直交する方
向に配置された索状体２が、同図中に黒矢印で示すよう
に、伸長方向への力を受ける。そして、伸長方向に弾性
変形して、浮揚枠体Ａに加えられる水平方向の力をやわ
らげつつ、この水平方向の力に対する応力を生じて、浮
揚枠体Ａの変形を抑制することが可能となる。すなわち
、上記索状体２は、鎖単独やワイヤロープ単独に比べて
変形量が大きいため、ショックアブソーバ−の働きをす
る。On the other hand, the cord-like body 2.2, which can be elastically deformed in the extension direction,
For example, when a horizontal force is applied as shown by the white arrow in Figure 2, the cable-like body 2 arranged in the direction perpendicular to the white arrow will move as shown in the figure. As shown by the arrow, it receives a force in the direction of extension. Then, it becomes possible to elastically deform in the extension direction to soften the horizontal force applied to the floating frame A, and to generate stress in response to this horizontal force, thereby suppressing the deformation of the floating frame A. . That is, since the cable-like body 2 has a larger amount of deformation than a chain alone or a wire rope alone, it functions as a shock absorber.
第１図および第２図の実施例では、３本の索状体２，２
・・・を、浮揚枠体Ａの円の中心を挾んで対称位置の接
続部り、Ｄ同士の間に張り渡していたが、索状体２，２
・・・の張り渡し方は、上記実施例には限定されない。In the embodiment of FIGS. 1 and 2, three cords 2, 2
. . . were placed at connecting points symmetrically around the center of the circle of the floating frame A, and stretched between the cables 2 and 2.
. . . is not limited to the above embodiment.
例えば、上記実施例においては、３本の索状体２．２・
・・か、それぞれ独立して張り渡されていたか、第４図
に示すように、浮揚枠部材１，１・・・の各接続部り、
Ｄ・・・に取り付けられた複数の索状体２．２・・・を
、浮揚枠体Ａの円の中心に配置されたリングＲによって
一体に接続して、各接続部り。For example, in the above embodiment, three cord-like bodies 2.2.
. . . or each connection part of the floating frame members 1, 1 . . . as shown in Fig. 4.
A plurality of cable-like bodies 2.2... attached to D... are connected together by a ring R placed at the center of the circle of the floating frame A, and each connection portion is connected.
Ｄ・・間に張り渡すこともできる。上記のように、各方
向に向かう複数の索状体２，２・・・を一体に接続した
場合には、１つの索状体２に加えられる伸長方向への力
を、例えば両隣の索状体２，２等に分散できるので、よ
り大きな水平方向の力に対し、複数の索状体２，２・・
・を協働させて、浮揚枠体Ａの変形を抑制することが可
能となる。D. It can also be stretched between. As mentioned above, when a plurality of cord-like bodies 2, 2... directed in each direction are connected together, the force applied to one cord-like body 2 in the extension direction is, for example, Since it can be distributed to the bodies 2, 2, etc., multiple cord-like bodies 2, 2...
It becomes possible to suppress the deformation of the floating frame A by cooperating with the above.
また、第５図（田に示すように、索状体２，２・・・を
、１つ置きの接続部り、Ｄ・・・間に張り渡すこともで
きる。この場合には、合計６本の索状体２゜２・・・が
使用され、そのうち２本ずつが平行に張り渡されるので
、より大きな水平方向の力に対して、浮揚枠体Ａの変形
を抑制することが可能となる。Furthermore, as shown in FIG. Because book ropes 2゜2... are used, and two of them are stretched in parallel, it is possible to suppress the deformation of the floating frame A against larger horizontal forces. Become.
また、第５図中）に示すように、浮揚枠体Ａの円の中心
を挾んで対称位置の接続部り、Ｄ間に張り渡された３本
の索状体２，２・・・に加えて、３本の索状体２．２・
・・を、１つ置きの接続部り、Ｄ間に張り渡すこともで
きる。この場合には、各索状体２．２・・・が、それぞ
れ別方向を向いているので、浮揚枠体Ａの水平方向の力
による変形に対して、より細かに対応することが可能と
なる。In addition, as shown in Fig. 5), there are connection parts at symmetrical positions sandwiching the center of the circle of the floating frame A, and three cable-like bodies 2, 2... stretched between D. In addition, three cords 2.2.
... can also be strung between every other connection point and D. In this case, each of the cable-like bodies 2.2... faces in a different direction, so it is possible to respond more precisely to the deformation of the floating frame A due to horizontal force. Become.
第６図（ａｔは、浮揚枠体Ａが８本の浮揚枠部材１゜１
・・・で構成された場合を示し、それぞれの浮揚枠部材
１，１・・・の８つの接続部り、Ｄ・・・のうち、浮揚
枠体Ａの円の中心を挾んで対称位置の４組の接続部り、
Ｄ間に、４本の索状体２，２・・・が張り渡された実施
例を示している。Figure 6 (at indicates that the floating frame body A has eight floating frame members 1°1
..., and among the eight connection parts D... of each floating frame member 1, 1..., there are 8 connection parts D... at symmetrical positions across the center of the circle of the floating frame A. 4 sets of connections,
An embodiment in which four cable-like bodies 2, 2, . . . are stretched between D is shown.
また、第６図（ｂ＋は、浮揚枠体Ａが４本の浮揚枠部材
１．１・・・で構成された場合を示し、それぞれの浮揚
枠部材１．１・・・の４つの接続部り、Ｄ・・・のうち
、浮揚枠体Ａの円の中心を挾んで対称位置の２組の接続
部り、Ｄ間に、２本の索状体２，２を張り渡すと共に、
隣り合う接続部り、Ｄ・・間に４本の索状体２，２・・
・を張り渡した実施例を示している。In addition, FIG. 6 (b+ shows the case where the floating frame body A is composed of four floating frame members 1.1..., and the four connection parts of each floating frame member 1.1... and D..., there are two sets of connecting parts at symmetrical positions sandwiching the center of the circle of the floating frame A, and two cable-like bodies 2, 2 are stretched between them,
Adjacent connecting parts, D... four cord-like bodies 2, 2... between them.
・This shows an example in which .
なお、浮揚枠体Ａを構成する浮揚枠部材１としては、第
７図（ａ）〜（Ｃ１に示すものを使用することもできる
。Note that as the floating frame member 1 constituting the floating frame body A, those shown in FIGS. 7(a) to (C1) can also be used.
上記浮揚枠部材１は、ゴム等の弾性材料からなる２枚の
長尺帯状のシートＳ、Ｓを、中央部１５を残して４辺１
６〜１９を貼り合わせたチューブ状にし、上記中央部１
５に圧搾空気を注入して、直線円筒状に膨らませたもの
である。４辺１６〜１９のうち、下側の辺１８には、い
けす網または拡散防止膜を吊り下げるための複数の孔１
８ａ。The floating frame member 1 is made of two long belt-shaped sheets S, S made of an elastic material such as rubber.
6 to 19 are pasted together to form a tube, and the central part 1 is
5 is inflated into a straight cylindrical shape by injecting compressed air. Among the four sides 16 to 19, the lower side 18 has a plurality of holes 1 for suspending a cage net or a diffusion prevention membrane.
8a.
１８ａ・・・が形成されている。また、上記４辺１６〜
１９のうち、円筒の端に相当する２辺１７゜１９には、
浮揚枠部材１同士を接続するためのボルトが挿通される
複数のボルト孔１７ａ、１７ａ・・・、１９ａ、１９ａ
・・・が形成されている。18a... are formed. In addition, the above four sides 16~
Of 19, on the two sides 17°19 corresponding to the ends of the cylinder,
A plurality of bolt holes 17a, 17a..., 19a, 19a through which bolts for connecting the floating frame members 1 are inserted.
... is formed.
上記浮揚枠部材１は、第８図に示すように、複数本（図
では６本）を、湾曲させた状態で、前記ボルト孔１７ａ
、１７ａ・・・、１９ａ、１９ａ・・・に挿通されたボ
ルトによって、当該浮揚枠部材１同士を連結するための
６つの連結部材Ｅ、Ｅ・・・に連結することで、円形の
浮揚枠体Ａを構成する。As shown in FIG. 8, the floating frame member 1 has a plurality of pieces (six pieces in the figure) bent in the bolt holes 17a.
, 17a..., 19a, 19a... are connected to the six connecting members E, E... for connecting the floating frame members 1 to each other, thereby forming a circular floating frame. Constitutes a body A.
上記浮揚枠部材１においては、中央部１５に注入する圧
搾空気の圧力を調整することにより、湾曲された浮揚枠
部材１が直線状に戻ろうとする力を調整することができ
る。In the floating frame member 1 described above, by adjusting the pressure of the compressed air injected into the central portion 15, it is possible to adjust the force that causes the curved floating frame member 1 to return to a straight line.
上記浮揚枠体Ａにおいては、６つの連結部材Ｅ。In the floating frame body A, there are six connecting members E.
Ｅ・・・のうち、浮揚枠体への円の中心を挾んで対称位
置の３組の連結部材Ｅ、Ｅ間に、３本の索状体２．２・
・・が張り渡されている。Among E..., three cable-like bodies 2.2.
...is stretched out.
上記各実施例においては、浮揚枠体Ａを構成する浮揚枠
部材１同士の接続部り、Ｄ間、または連結部材Ｅ、Ｅ間
に、索状体２が張り渡されていたが、浮揚枠部材１の本
体間、或いは上記本体と、接続部りや連結部材Ｅとの間
に索状体を張り渡しても良い。In each of the above embodiments, the cable-like body 2 is stretched between the connecting portions D between the floating frame members 1 constituting the floating frame body A, or between the connecting members E, E, but the floating frame A cord-like body may be stretched between the main bodies of the member 1 or between the main bodies and the connecting portion or the connecting member E.
浮揚枠部材１としては、上記各実施例で用いられた筒状
のもの以外にも、例えば、中実棒状のものや、上記中実
棒状の本体の周囲に、浮力を増すためにスポンジを巻き
付けたもの等を使用することもてきる。In addition to the cylindrical one used in each of the above embodiments, the floating frame member 1 may also be a solid rod-shaped one, or a sponge wrapped around the solid rod-shaped main body to increase buoyancy. You can also use other items.
また、上記各実施例においては、直線状の浮揚枠部材１
を湾曲させて円形に接続していたが、予め、所定の曲率
に湾曲した浮揚枠部材を使用することもできる。In each of the above embodiments, the linear floating frame member 1
Although the floating frame members are curved and connected in a circular manner, it is also possible to use a floating frame member that is curved in advance to a predetermined curvature.
その他、この発明の要旨を変更しない範囲で種々の設計
変更を施すことができる。In addition, various design changes can be made without changing the gist of the invention.
〈発明の効果〉
この発明の浮揚枠体は、以上のように構成されており、
浮揚枠体が水平方向の力を受けると、この浮揚枠体の少
なくとも２点間に張り渡した索状体が、伸長方向への力
を受けて応力を生じ、上記方向への浮揚枠体の変形を抑
制する。<Effects of the Invention> The floating frame of this invention is configured as described above,
When the floating frame is subjected to a horizontal force, the cable-shaped body stretched between at least two points of the floating frame receives a force in the elongation direction and generates stress, which causes the floating frame to expand in the above direction. Suppress deformation.
したがって、この発明の浮揚枠体は、主として鉛直方向
の力に対して柔軟に対応し得ると共に、水平方向の力に
対して変形し難いものとなる。Therefore, the floating frame of the present invention can flexibly respond mainly to vertical forces, and is difficult to deform in response to horizontal forces.
第１図はこの発明の浮揚枠体の一実施例をいけずに用い
た状態を示す斜視図、第２図は上記実施例の平面図、第
３図は上記実施例に使用される浮揚枠部材の半裁断面図
、第４図、第５図（ａＪ（ｂ）ないし第６図（ａＪ（ｂ
）は、それぞれ、変形例を示す平面図、第７図（ａｌ〜
（Ｃ１は、この発明の別の実施例に使用される浮揚枠部
材の図であって、同図（ａｌは正面図、同図（ｂ）は断
面図、同図（Ｃ）は平面図、第８図は上記浮揚枠部材を
使用したこの発明の別の実施例を示す平面図である。
Ａ・・・浮揚枠体、１・・・浮揚枠部材、２・・・索状
体。Fig. 1 is a perspective view showing an embodiment of the floating frame of the present invention in a state in which it is used without moving, Fig. 2 is a plan view of the above embodiment, and Fig. 3 is a levitation frame used in the above embodiment. Half-cut sectional views of members, FIGS. 4 and 5 (aJ(b) to 6(aJ(b)
) are a plan view showing a modified example, and FIG. 7 (al~
(C1 is a diagram of a floating frame member used in another embodiment of the present invention, and the same figure (al is a front view, the same figure (b) is a sectional view, the same figure (C) is a plan view, Fig. 8 is a plan view showing another embodiment of the present invention using the above floating frame member.A...Floating frame body, 1...Floating frame member, 2...Cable-like body.
Claims (1)
浮揚枠部材を複数本、略円形に接続してなる浮揚枠体で
あって、上記浮揚枠体の少なくとも２点間に、当該浮揚
枠体の変形を抑制する、伸長方向に弾性変形可能な索状
体を張り渡したことを特徴とする浮揚枠体。1. A floating frame made of a plurality of rod-shaped or cylindrical floating frame members made of an elastic material such as rubber, connected in a substantially circular shape, with the A floating frame body comprising a cord-shaped body that is elastically deformable in an extension direction and that suppresses deformation of the floating frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050641A JPH0659151B2 (en) | 1990-02-28 | 1990-02-28 | Levitating frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050641A JPH0659151B2 (en) | 1990-02-28 | 1990-02-28 | Levitating frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03251130A true JPH03251130A (en) | 1991-11-08 |
| JPH0659151B2 JPH0659151B2 (en) | 1994-08-10 |
Family
ID=12864581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2050641A Expired - Lifetime JPH0659151B2 (en) | 1990-02-28 | 1990-02-28 | Levitating frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659151B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103899A (en) * | 1977-02-22 | 1978-09-09 | Kono Yutaka | Apparatus for culture |
-
1990
- 1990-02-28 JP JP2050641A patent/JPH0659151B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103899A (en) * | 1977-02-22 | 1978-09-09 | Kono Yutaka | Apparatus for culture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0659151B2 (en) | 1994-08-10 |
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