JP3995538B2

JP3995538B2 - Ginger frame

Info

Publication number: JP3995538B2
Application number: JP2002176495A
Authority: JP
Inventors: 良紀川中
Original assignee: 四国大和金網株式会社
Priority date: 2002-06-18
Filing date: 2002-06-18
Publication date: 2007-10-24
Anticipated expiration: 2022-06-18
Also published as: JP2004016123A

Description

【０００１】
【発明の属する技術分野】
本発明は、一定の海域を枠で囲い、該枠の下に網を取り付けてその網内で魚介類の養殖を行うための生簀の構造に関する。
【０００２】
【従来の技術】
従来から、水中のある領域を網で囲み、その中で魚を養殖する生簀は、水面付近に浮遊させた、フロートが取り付けられた上枠と、該上枠から垂下した有底の網と、該網の形状を保持するための下枠とから構成されていた。この生簀は、矩形状や円形状に形成された鋼製の上枠を、複数のフロートで支持し、該上枠に網の上部の縁などが固定され、網の底部の縁に網の形状を保持するために、錘となる下枠が取り付けられている。上下枠の枠体は鋼製であるため、波や潮流が強い海域においては、枠体に引っ張り、圧縮、捩れ、曲げ等の力が作用するため、強度的に言えば、耐久性の点において劣っていた。また、海水により腐食するため、寿命が短く、短期間で交換する必要があった。そこで、耐久性及び耐食性を向上させるために、鋼製の枠体に亜鉛メッキなどの防食剤を塗布したり、ＦＲＰ樹脂でコーティングすることにより、海水との接触を遮断したりすることや、枠体を耐食性の高い銅製のものとしたり、合成樹脂から構成したりすることが提案されている。
【０００３】
【発明が解決しようとする課題】
しかし、枠体に亜鉛メッキを塗装したものでは、防食性が不十分であるため、耐久性の向上を図るのは困難であり、またＦＲＰ樹脂でコーティングしたものは、防食性は高いが、加工に手間がかかるとともに、製造コストが高くなっていた。さらに、これらの枠体は、使用後においては、リサイクルが不可能であり、廃棄物として処理されていたため、環境を悪化させるとともに、廃棄処理に必要なコストが高くなっていた。
【０００４】
また、鋼製の代わりに銅製の枠体を用いた場合、鋼製に比べて素材自体が高価な上、溶接が難しく、枠体を組み立てるための製造コストも高くなっていた。また、単に合成樹脂を用いて枠体を構成しただけでは、波風に耐えうる十分な強度を得ることができないことがあった。そこで本発明は、十分な強度を確実に有し、海水に対する耐食性が高く、使用後にはリサイクル可能な生簀を提供するものである。
【０００５】
【課題を解決するための手段】
本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。
【０００６】
請求項１においては、一定の海域を上枠（２）と下枠（５）で囲い、該上枠（２）と下枠（５）に網を取り付けてその網内で魚介類の養殖を行うための生簀（１）において、該下枠（５）を構成する枠体は、パイプ状に形成された合成樹脂製部材（１０）と、鋼製の芯部材（１１）とから構成し、該合成樹脂製部材（１０）の内側に芯部材（１１）を挿入配置した二重構造に形成し、該鋼製の芯部材（１１）は、複数のパイプ状の部材（１１ａ）から構成し、各パイプ状の部材（１１ａ）が湾曲されて接合され、枠体の芯部材（１１）を形成し、前記合成樹脂製部材（１０）は合成樹脂からなり、芯部材（１１）の周長と略同一の長さとし、該芯部材（１１）を合成樹脂製部材（１０）に嵌挿し、該枠体を構成し、該芯部材（１１）の接合部は、前記部材（１１ａ）と部材（１１ａ）の接合部の端部内側に棒状の鋼製スリーブ（１２）を嵌挿し、該部材（１１ａ）と部材（１１ａ）とがずれないように位置決めした後に溶接し、該溶接部（１５）を介して連結し、該合成樹脂製部材（１０）の接合部は、筒状の合成樹脂製スリーブ（１４）を芯部材（１１）の周囲に外嵌し、該合成樹脂製スリーブ（１４）の両端内側に合成樹脂製部材（１０）の両端部を差し込み接合するものである。
【０００７】
請求項２においては、請求項１記載の生簀の枠体において、前記芯部材（１１）の外側と合成樹脂製部材（１０）の内側との間には、所定の間隔を開けてカラー（１３）を嵌装し、該合成樹脂製部材（１０）を固定するものである。
【０００８】
【発明の実施の形態】
次に、発明の実施の形態を説明する。
【０００９】
図１は本発明の生簀の斜視図、図２は同じく側面一部断面図、図３は枠体を円形状に構成した場合における枠体の一部断面平面図、図４は枠体の接合部の側面断面図である。
【００１０】
図５は図４におけるＡ−Ａ矢視断面図、図６は枠体を矩形状に構成した場合における枠体の一部断面平面図である。
【００１１】
図１示す如く、生簀１は、上枠２と、上枠２に取り付けられたフロート３・３・・・と、上枠２に上端が取り付けられた網４と、網４の底部の縁に取り付けられた下枠５とから構成されている。
【００１２】
上枠２は、円形状に形成された複数の枠体からなり、該複数の枠体を第一枠体２ａ、第二枠体２ｂ、第三枠体２ｃとすると、第一枠体２ａが、水平方向に、第二枠体２ｂより外側に配置され、該第二枠体２ｂの上方に第三枠体２ｃが配置されている。そして、該第一枠体２ａと、第二枠体２ｂと、第三枠体２ｃとが、複数の固定部材６・６・・・により固定されて、上枠２が形成されている。
【００１３】
即ち、図２に示す如く、固定部材６は鋼製でＬ字状に形成されており、その両端部及び中央部にそれぞれ貫通孔６ａ・６ｂ・６ｃが設けられ、貫通孔６ａ・６ｂ・６ｃにそれぞれ第一枠体２ａ、第二枠体２ｂ、第三枠体２ｃを挿通した後、各固定部材６は所定の間隔を開けて配設され、第一枠体２ａ、第二枠体２ｂ、第三枠体２ｃの相対位置を固定するのである。
【００１４】
また、各固定部材６の内側下部には、網取付ワイヤー７を取り付けるための取付部６ｄが設けられて、該取付部６ｄに網取付ワイヤー７が、第二枠体２ｂの内周部に沿うように張設されている。
【００１５】
そして、該網取付ワイヤー７に網４の上端が取り付けられ、網４の底部の縁に下枠５を構成する枠体５ａが取り付けられている。該枠体５ａは上枠２と同様に円形状に形成され、網４の形状を保持するものである。
【００１６】
次に、図３乃至図６より上枠及び下枠を構成する枠体の構造について説明する。なお、上枠２を構成する、第一枠体２ａ、第二枠体２ｂ、第三枠体２ｃと、下枠５を構成する枠体５ａの構造は同一であるので、ここでは下枠５の枠体５ａについて説明する。枠体５ａは、パイプ状に形成された合成樹脂製部材１０と、鋼製の芯部材１１とからなり、該合成樹脂製部材１０の内側に芯部材１１が配置されて、枠体５ａは二重構造からなる合成構造が形成されている。芯部材１１は、複数のパイプ状の部材１１ａ・１１ａ・・・からなり、図３に示す如く、各部材１１ａが湾曲されて接合され、円形状に芯部材１１が形成される。また、合成樹脂製部材１０は、例えば塩化ビニルなどの合成樹脂からなり、芯部材１１の円周長と略同一の長さを有して、接合部の数が最小限となるようにしている。そして、芯部材１１が合成樹脂製部材１０に嵌挿されて、枠体５ａが円形状に構成されている。ここで、芯部材１１を複数のパイプ状の部材１１ａ・１１ａ・・・から形成するとともに、合成樹脂製部材１０を塩化ビニルなどの合成樹脂を用いることによって、生簀１を組み立てる現場までの搬送が容易になるとともに、部材１１ａ・１１ａ・・・を接合して芯部材１１を形成し、該芯部材を合成樹脂製部材１０に嵌挿することにより、現場で簡単に枠体５ａを構成することができるのである。また、合成樹脂製部材の接合部の数を最小とすることができるため、合成樹脂製部材内の密閉性が高くなる。但し、合成樹脂の種類は特に限定するものではない。また、該芯部材１１には、所定の間隔を開けてカラー１３・１３・・・が固設され、合成樹脂製部材１０を固定し、補強するようにしている。
【００１７】
次に、合成樹脂製部材１０及び芯部材１１の接合部について説明する。図４及び図５に示す如く、芯部材１１の接合部において、部材１１ａと部材１１ａは、その端部内側に棒状の鋼製スリーブ１２が嵌挿されて、部材１１ａと部材１１ａとがずれないように位置決めされた後に溶接され、この溶接部１５を介して連結される。また、合成樹脂製部材１０の接合部においては、筒状の合成樹脂製スリーブ１４が芯部材１１上に外嵌され、該スリーブ１４の両端内側に合成樹脂製部材１０の両端部が差し込まれている。このようにして、合成樹脂製部材１０の両端が接合されて、パイプ状の合成樹脂製部材１０の内側が密封されるため、芯部材１１と海水の接触を確実に遮断でき、芯部材１１の腐食を防止することができる。
【００１８】
したがって、芯部材１１とパイプ状の合成樹脂製部材１０とから枠体５ａを構成し、該枠体５ａを、芯部材１１の外側に合成樹脂製部材１０を組み付けて二重構造に構成することにより、十分な強度を得ることができるとともに、芯部材１１と海水との接触を確実に遮断できるため、枠体５ａの海水による腐食を妨げることができ、寿命を長くできる。さらに、使用後の枠体５ａはリサイクル可能であるため、環境への負荷及び廃棄処理に必要なコストを低減することができる。
【００１９】
また、別実施例として、図６に示す如く、枠体５ａを矩形状に構成することも可能である。この場合、芯部材２１は複数のパイプ状の部材２１ａ・２１ａ・・・からなり、該部材２１ａは生簀の一辺程度の長さを有するものである。また、合成樹脂製部材２０は、例えばポリエチレンなどの合成樹脂からなり、部材２１ａと同数で略同一の長さを有するパイプ状の部材２０ａ・２０ａ・・・から形成され、該部材２０ａの内側に部材２１ａが差し込まれた後、該部材２１ａと部材２０ａとがＬ字状に曲折される。そして、該部材２０ａと部材２１ａからなるＬ字状ユニットを、前記実施例と同様に、各部材２１ａと部材２１ａとを接合して芯部材２１を形成した後、各部材２０ａと部材２０ａとを筒状の合成樹脂製スリーブ２２を介して接合して合成樹脂製部材２０が形成され、その結果、枠体５ａが矩形状に構成される。
【００２０】
なお、網４としては、従来から、ポリプロピレンなどの合成樹脂繊維製のものや、鉄製や銅製などの金網が用いられている。このうち金網は、海水により腐食されるものであり、また合成樹脂製網と比較して重量が大きく、製造コストも高くなる。一方、合成樹脂繊維製網は海水により腐食されることはないが、フジツボなどの貝類、藻類などが付着しやすく、これらにより網目が塞がれると、潮通しが悪くなり、養殖魚のストレスや発病による成長不良などの要因となっていた。そのため、定期的に網を交換し網を洗浄して付着物を除去したり、補修を行なったりするなど、多大な労力と時間が費やされていた。貝類、藻類などの付着物は、特に、網４を構成する縦糸と横糸との交叉部である結び目に付着しやすい。そこで、合成樹脂製の縦糸と横糸を互いに交叉させ、それぞれの交点を高周波溶着により、結び目をなくして網４を構成し、縦糸と横糸の交叉部を略平面的にすることにより、網４に貝類、藻類を付着しにくくすることができる。このように、剛性構造の合成樹脂からなる上下枠２・５に、同じく合成樹脂からなる網４を適用することで、生簀のより一層の軽量化が図れ、生簀の設置あるいは廃棄時における労力をさらに軽減することができる。なお、本実施例においては、合成樹脂製網を用いて生簀１を構成しているが、例えば、潮流などの負荷が大きく、より高い剛性の要求される環境下では、金網を用いて生簀を構成したり、側網に合成樹脂繊維製の網を用い、底網に金網を用いて生簀を構成したりすることもでき、合成樹脂製網に限定されるものではない。
【００２１】
【発明の効果】
本発明は、以上のように構成したので、以下に示すような効果を奏する。
【００２２】
即ち、請求項１に示す如く、一定の海域を上枠（２）と下枠（５）で囲い、該上枠（２）と下枠（５）に網を取り付けてその網内で魚介類の養殖を行うための生簀（１）において、該下枠（５）を構成する枠体は、パイプ状に形成された合成樹脂製部材（１０）と、鋼製の芯部材（１１）とから構成し、該合成樹脂製部材（１０）の内側に芯部材（１１）を挿入配置した二重構造に形成し、該鋼製の芯部材（１１）は、複数のパイプ状の部材（１１ａ）から構成し、各パイプ状の部材（１１ａ）が湾曲されて接合され、枠体の芯部材（１１）を形成し、前記合成樹脂製部材（１０）は合成樹脂からなり、芯部材（１１）の周長と略同一の長さとし、該芯部材（１１）を合成樹脂製部材（１０）に嵌挿し、該枠体を構成し、該芯部材（１１）の接合部は、前記部材（１１ａ）と部材（１１ａ）の接合部の端部内側に棒状の鋼製スリーブ（１２）を嵌挿し、該部材（１１ａ）と部材（１１ａ）とがずれないように位置決めした後に溶接し、該溶接部（１５）を介して連結し、該合成樹脂製部材（１０）の接合部は、筒状の合成樹脂製スリーブ（１４）を芯部材（１１）の周囲に外嵌し、該合成樹脂製スリーブ（１４）の両端内側に合成樹脂製部材（１０）の両端部を差し込み接合するので、十分な枠体の強度を得ることができるとともに、海水による腐食を妨げることができ、寿命を長くできる。
さらに、使用後の枠体はリサイクル可能であるため、環境への負荷及び廃棄処理に必要なコストを低減することができる。
【００２３】
また、前記合成樹脂製部材（１０）には鋼製の芯部材（１１）を設けたので、波風に耐えうる十分な強度を得ることができる。
【００２４】
また、前記合成樹脂製部材（１０）の内側に鋼製の芯部材（１１）を配置して、枠体を二重構造に構成したので、枠体の強度及び耐食性の向上を図ることができる。
【００２５】
また、鋼製の芯部材（１１）及び合成樹脂製部材（１０）は湾曲して枠体を構成可能であるので、搬送が容易になるとともに、芯部材（１１）を合成樹脂製部材（１０）に簡単に嵌挿して枠体を構成することができる。また、合成樹脂製部材（１０）の接合部の数を最小とすることができるため、合成樹脂製部材（１０）内の密閉性が高くなる。
【００２６】
また、前記合成樹脂製部材（１０）がパイプ状であるので、その内側に合成樹脂製部材（１０）を嵌挿することが可能となり、枠体の強度の向上を図ることができる。
【００２７】
請求項２に示す如く、前記芯部材（１１）の外側と合成樹脂製部材（１０）の内側との間には、所定の間隔を開けてカラー（１３）を嵌装し、該合成樹脂製部材（１０）を固定したので、枠体の強度の向上を図ることができる。
【図面の簡単な説明】
【図１】本発明の生簀の斜視図。
【図２】同じく側面一部断面図。
【図３】枠体を円形状に構成した場合における枠体の一部断面平面図。
【図４】枠体の接合部の側面断面図。
【図５】図４におけるＡ−Ａ矢視断面図。
【図６】枠体を矩形状に構成した場合における枠体の一部断面平面図。
【符号の説明】
１生簀
２上枠
２ａ第一枠体
２ｂ第二枠体
２ｃ第三枠体
５下枠
５ａ枠体
１０合成樹脂製部材
１１芯部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ginger structure for enclosing a certain sea area with a frame, attaching a net under the frame, and culturing seafood in the net.
[0002]
[Prior art]
Conventionally, a ginger that encloses a certain area in the water with a net and cultivates fish in it is suspended near the water surface, an upper frame attached with a float, and a bottomed net suspended from the upper frame, It was comprised from the lower frame for hold | maintaining the shape of this net | network. This ginger supports a steel upper frame formed in a rectangular or circular shape with a plurality of floats, the upper edge of the net is fixed to the upper frame, and the shape of the net is fixed to the bottom edge of the net In order to hold the lower frame, a lower frame serving as a weight is attached. Since the upper and lower frame bodies are made of steel, in sea areas where waves and tides are strong, forces such as pulling, compression, twisting and bending act on the frame body, so in terms of strength, in terms of durability. It was inferior. Moreover, since it corrodes by seawater, it had a short lifetime and had to be replaced in a short period of time. Therefore, in order to improve durability and corrosion resistance, it is possible to block contact with seawater by applying an anticorrosive agent such as galvanizing to a steel frame or coating it with FRP resin. It has been proposed that the body is made of copper having high corrosion resistance or made of a synthetic resin.
[0003]
[Problems to be solved by the invention]
However, the galvanized coating on the frame has insufficient corrosion resistance, so it is difficult to improve durability, and the one coated with FRP resin has high corrosion resistance, In addition, the manufacturing cost is high. Furthermore, since these frames cannot be recycled after use and are treated as waste, the environment is deteriorated and the cost required for disposal is high.
[0004]
Further, when a copper frame is used instead of steel, the material itself is more expensive than steel, and welding is difficult, and the manufacturing cost for assembling the frame is high. In addition, there are cases where it is not possible to obtain a sufficient strength that can withstand wave winds simply by configuring the frame body using a synthetic resin. Therefore, the present invention provides a ginger that has sufficient strength, has high corrosion resistance to seawater, and can be recycled after use.
[0005]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0006]
In claim 1, a certain sea area is surrounded by an upper frame (2) and a lower frame (5), a net is attached to the upper frame (2) and the lower frame (5), and fishery products are cultured in the net. In the ginger (1) for performing, the frame constituting the lower frame (5) is composed of a synthetic resin member (10) formed in a pipe shape and a steel core member (11), The synthetic resin member (10) is formed in a double structure in which a core member (11) is inserted and arranged inside, and the steel core member (11) is composed of a plurality of pipe-shaped members (11a). Each pipe-shaped member (11a) is curved and joined to form a core member (11) of the frame, and the synthetic resin member (10) is made of synthetic resin, and the circumference of the core member (11) The core member (11) is inserted into the synthetic resin member (10) to form the frame, and the joint portion of the core member (11) After inserting a rod-shaped steel sleeve (12) inside the end of the joint between the member (11a) and the member (11a), and positioning the member (11a) and the member (11a) so as not to shift. They are welded and connected via the welded portion (15), and the synthetic resin member (10) is joined by fitting a cylindrical synthetic resin sleeve (14) around the core member (11). The both ends of the synthetic resin member (10) are inserted and joined to the inner sides of both ends of the synthetic resin sleeve (14) .
[0007]
According to a second aspect of the present invention, in the ginger frame according to the first aspect, a collar (13) is provided with a predetermined interval between the outer side of the core member (11) and the inner side of the synthetic resin member (10). ) And the synthetic resin member (10) is fixed .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the invention will be described.
[0009]
1 is a perspective view of a ginger according to the present invention, FIG. 2 is a partially sectional side view, FIG. 3 is a partially sectional plan view of the frame when the frame is configured in a circular shape, and FIG. It is side surface sectional drawing of a part.
[0010]
FIG. 5 is a cross-sectional view taken along line AA in FIG. 4, and FIG. 6 is a partial cross-sectional plan view of the frame when the frame is configured in a rectangular shape.
[0011]
As shown in FIG. 1, the ginger 1 has an upper frame 2, floats 3, 3... Attached to the upper frame 2, a net 4 with an upper end attached to the upper frame 2, and a bottom edge of the net 4. It consists of a lower frame 5 attached.
[0012]
The upper frame 2 includes a plurality of frames formed in a circular shape. When the plurality of frames are a first frame 2a, a second frame 2b, and a third frame 2c, the first frame 2a is In the horizontal direction, it is arranged outside the second frame 2b, and the third frame 2c is arranged above the second frame 2b. The first frame 2a, the second frame 2b, and the third frame 2c are fixed by a plurality of fixing members 6, 6... To form the upper frame 2.
[0013]
That is, as shown in FIG. 2, the fixing member 6 is made of steel and is formed in an L shape, and through holes 6a, 6b, and 6c are provided at both ends and a center portion thereof, and the through holes 6a, 6b, and 6c are provided. After the first frame body 2a, the second frame body 2b, and the third frame body 2c are inserted through the fixing members 6, the fixing members 6 are arranged at predetermined intervals, and the first frame body 2a and the second frame body 2b. The relative position of the third frame 2c is fixed.
[0014]
Further, on the inner bottom of each fixing member 6, mounting portions 6d are provided for attaching the nets mounting wire 7, network attached wire 7 to the attachment portion 6d is along the inner peripheral portion of the second frame 2b So that it is stretched.
[0015]
And the upper end of the net | network 4 is attached to this net | network attachment wire 7, and the frame 5a which comprises the lower frame 5 is attached to the edge of the bottom part of the net | network 4. The frame body 5 a is formed in a circular shape like the upper frame 2, and maintains the shape of the net 4.
[0016]
Next, the structure of the frame constituting the upper frame and the lower frame will be described with reference to FIGS. The first frame 2a, the second frame 2b, the third frame 2c constituting the upper frame 2 and the structure of the frame 5a constituting the lower frame 5 are the same, so here the lower frame 5 The frame 5a will be described. The frame body 5a includes a synthetic resin member 10 formed in a pipe shape and a steel core member 11. The core member 11 is disposed inside the synthetic resin member 10, and the frame body 5a includes two members. A synthetic structure consisting of a heavy structure is formed. The core member 11 is composed of a plurality of pipe-shaped members 11a, 11a,... And each member 11a is curved and joined to form the core member 11 in a circular shape. The synthetic resin member 10 is made of, for example, a synthetic resin such as vinyl chloride, and has substantially the same length as the circumferential length of the core member 11 so that the number of joints is minimized. . And the core member 11 is inserted by the synthetic resin member 10, and the frame 5a is comprised circularly. Here, the core member 11 is formed from a plurality of pipe-shaped members 11a, 11a,... And the synthetic resin member 10 is made of synthetic resin such as vinyl chloride, so that the ginger 1 can be transported to the site where it is assembled. The frame body 5a can be easily configured on site by joining the members 11a, 11a,... To form the core member 11, and inserting the core member into the synthetic resin member 10. Can do it. In addition, since the number of joint portions of the synthetic resin member can be minimized, the hermeticity in the synthetic resin member is increased. However, the type of synthetic resin is not particularly limited. Further, the core member 11 is provided with collars 13, 13... At a predetermined interval to fix and reinforce the synthetic resin member 10.
[0017]
Next, the joint portion between the synthetic resin member 10 and the core member 11 will be described. As shown in FIGS. 4 and 5, at the joint portion of the core member 11, the member 11 a and the member 11 a are inserted with the rod-shaped steel sleeve 12 inside the end portion, so that the member 11 a and the member 11 a are not displaced. After being positioned in such a manner, welding is performed and the welding portion 15 is connected. Further, at the joint portion of the synthetic resin member 10, a cylindrical synthetic resin sleeve 14 is fitted on the core member 11, and both end portions of the synthetic resin member 10 are inserted into both ends of the sleeve 14. Yes. Thus, since both ends of the synthetic resin member 10 are joined and the inside of the pipe-shaped synthetic resin member 10 is sealed, the contact between the core member 11 and seawater can be reliably blocked, and the core member 11 Corrosion can be prevented.
[0018]
Therefore, the frame body 5a is constituted by the core member 11 and the pipe-shaped synthetic resin member 10, and the frame body 5a is constructed in a double structure by assembling the synthetic resin member 10 outside the core member 11. As a result, sufficient strength can be obtained, and the contact between the core member 11 and seawater can be reliably blocked, so that corrosion of the frame 5a by seawater can be prevented, and the life can be extended. Furthermore, since the used frame 5a can be recycled, it is possible to reduce the environmental load and the cost required for disposal.
[0019]
As another embodiment, as shown in FIG. 6, the frame 5a can be formed in a rectangular shape. In this case, the core member 21 includes a plurality of pipe-like members 21a, 21a,..., And the member 21a has a length of about one side of the ginger. The synthetic resin member 20 is made of, for example, a synthetic resin such as polyethylene, and is formed of pipe-like members 20a, 20a,... Having the same number and the same length as the member 21a. After the member 21a is inserted, the member 21a and the member 20a are bent into an L shape. Then, the L-shaped unit composed of the member 20a and the member 21a is joined to each member 21a and the member 21a to form the core member 21 in the same manner as in the above embodiment, and then each member 20a and the member 20a are joined. A synthetic resin member 20 is formed by joining via a cylindrical synthetic resin sleeve 22, and as a result, the frame 5a is formed in a rectangular shape.
[0020]
As the net 4, conventionally, a net made of synthetic resin fiber such as polypropylene or a metal net such as iron or copper is used. Of these, the wire mesh is corroded by seawater, and is heavier and more expensive to manufacture than the synthetic resin mesh. On the other hand, synthetic resin fiber nets are not corroded by seawater, but shellfish such as barnacles and algae are likely to adhere to them. It was a factor such as poor growth due to. Therefore, a great deal of labor and time has been spent, such as periodically replacing the net and washing the net to remove deposits or repairing. Deposits such as shellfish and algae are particularly likely to adhere to the knots, which are the intersections of the warp and weft constituting the net 4. Therefore, the warp yarn and the weft yarn made of synthetic resin are crossed with each other, and the mesh 4 is formed by eliminating the knots at the respective intersections by high-frequency welding, and the crossing portion of the warp yarn and the weft yarn is made substantially planar, Shellfish and algae can be made difficult to adhere. In this way, by applying the net 4 made of the same synthetic resin to the upper and lower frames 2 and 5 made of a synthetic resin having a rigid structure, the weight of the ginger can be further reduced, and labor during installation or disposal of the ginger can be reduced. Further reduction can be achieved. In this embodiment, the ginger 1 is constructed using a synthetic resin net. However, for example, in an environment where a load such as a tidal current is large and a higher rigidity is required, the ginger is used with a gauze. It can also be configured, or a ginger can be constructed using a synthetic resin fiber net for the side net and a metal net for the bottom net, and is not limited to the synthetic resin net.
[0021]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0022]
That is, as shown in claim 1, a certain sea area is surrounded by an upper frame (2) and a lower frame (5), a net is attached to the upper frame (2) and the lower frame (5), and the seafood is contained in the net. In the ginger (1) for aquaculture, the frame constituting the lower frame (5) is composed of a synthetic resin member (10) formed in a pipe shape and a steel core member (11). The steel core member (11) is composed of a plurality of pipe-shaped members (11a). Each pipe-shaped member (11a) is bent and joined to form a frame core member (11), and the synthetic resin member (10) is made of synthetic resin, and the core member (11). The core member (11) is fitted into the synthetic resin member (10) to form the frame, and the core member (11) The joint portion is inserted with a rod-shaped steel sleeve (12) inside the end of the joint portion between the member (11a) and the member (11a) so that the member (11a) and the member (11a) do not shift. After positioning, welding is performed, and the joints are connected via the welded portion (15). The joint portion of the synthetic resin member (10) has a cylindrical synthetic resin sleeve (14) around the core member (11). Since both ends of the synthetic resin member (10) are inserted and joined to the inner sides of both ends of the synthetic resin sleeve (14) , sufficient strength of the frame can be obtained and corrosion by seawater is prevented. Can increase the service life.
Furthermore, since the used frame can be recycled, it is possible to reduce the environmental load and the cost required for disposal.
[0023]
Moreover, since the steel core member (11) is provided on the synthetic resin member (10), it is possible to obtain sufficient strength to withstand wave wind.
[0024]
Moreover, since the steel core member (11) is disposed inside the synthetic resin member (10) and the frame body is configured in a double structure, the strength and corrosion resistance of the frame body can be improved. .
[0025]
Further, since the steel core member (11) and the synthetic resin member (10) can be curved to form a frame, the conveyance is facilitated and the core member (11) is made of the synthetic resin member (10). ) Can be easily inserted into the frame body. Moreover, since the number of the joint parts of the synthetic resin member (10) can be minimized, the hermeticity in the synthetic resin member (10) is increased.
[0026]
Moreover, since the said synthetic resin member (10) is pipe shape, it becomes possible to insert the synthetic resin member (10) in the inner side, and can aim at the improvement of the intensity | strength of a frame.
[0027]
According to a second aspect of the present invention, a collar (13) is fitted between the outer side of the core member (11) and the inner side of the synthetic resin member (10) with a predetermined gap therebetween, Since the member (10) is fixed , the strength of the frame can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a ginger according to the present invention.
FIG. 2 is a partially sectional side view of the same.
FIG. 3 is a partial cross-sectional plan view of the frame when the frame is configured in a circular shape.
FIG. 4 is a side sectional view of a joint portion of a frame body.
5 is a cross-sectional view taken along arrow AA in FIG.
FIG. 6 is a partial cross-sectional plan view of the frame when the frame is configured in a rectangular shape.
[Explanation of symbols]
1 ginger 2 upper frame 2a first frame 2b second frame 2c third frame 5 lower frame 5a frame 10 synthetic resin member 11 core member

Claims

一定の海域を上枠（２）と下枠（５）で囲い、該上枠（２）と下枠（５）に網を取り付けてその網内で魚介類の養殖を行うための生簀（１）において、該下枠（５）を構成する枠体は、パイプ状に形成された合成樹脂製部材（１０）と、鋼製の芯部材（１１）とから構成し、該合成樹脂製部材（１０）の内側に芯部材（１１）を挿入配置した二重構造に形成し、該鋼製の芯部材（１１）は、複数のパイプ状の部材（１１ａ）から構成し、各パイプ状の部材（１１ａ）が湾曲されて接合され、枠体の芯部材（１１）を形成し、前記合成樹脂製部材（１０）は合成樹脂からなり、芯部材（１１）の周長と略同一の長さとし、該芯部材（１１）を合成樹脂製部材（１０）に嵌挿し、該枠体を構成し、該芯部材（１１）の接合部は、前記部材（１１ａ）と部材（１１ａ）の接合部の端部内側に棒状の鋼製スリーブ（１２）を嵌挿し、該部材（１１ａ）と部材（１１ａ）とがずれないように位置決めした後に溶接し、該溶接部（１５）を介して連結し、該合成樹脂製部材（１０）の接合部は、筒状の合成樹脂製スリーブ（１４）を芯部材（１１）の周囲に外嵌し、該合成樹脂製スリーブ（１４）の両端内側に合成樹脂製部材（１０）の両端部を差し込み接合することを特徴とする生簀の枠体。A ginger (1) that surrounds a certain sea area with an upper frame (2) and a lower frame (5), attaches a net to the upper frame (2) and the lower frame (5), and cultivates seafood in the net ), The frame constituting the lower frame (5) is composed of a synthetic resin member (10) formed in a pipe shape and a steel core member (11), and the synthetic resin member ( 10), the steel core member (11) is formed of a plurality of pipe-shaped members (11a), and each pipe-shaped member (11a) is bent and joined to form a core member (11) of the frame, and the synthetic resin member (10) is made of synthetic resin and has a length substantially the same as the peripheral length of the core member (11). The core member (11) is inserted into the synthetic resin member (10) to form the frame, and the joint portion of the core member (11) is formed of the member (11a). A rod-shaped steel sleeve (12) is fitted inside the end of the joint of the member (11a) and positioned so that the member (11a) and the member (11a) do not deviate from each other. (15), and the synthetic resin member (10) is joined by fitting a cylindrical synthetic resin sleeve (14) around the core member (11) and connecting the synthetic resin sleeve (14). A ginger frame, wherein both ends of the synthetic resin member (10) are inserted and joined to both ends inside (14).

請求項１記載の生簀の枠体において、前記芯部材（１１）の外側と合成樹脂製部材（１０）の内側との間には、所定の間隔を開けてカラー（１３）を嵌装し、該合成樹脂製部材（１０）を固定することを特徴とする生簀の枠体。The ginger frame according to claim 1, wherein a collar (13) is fitted at a predetermined interval between the outside of the core member (11) and the inside of the synthetic resin member (10), A ginger frame characterized by fixing the synthetic resin member (10).