JPH038174B2 - - Google Patents
Info
- Publication number
- JPH038174B2 JPH038174B2 JP58091284A JP9128483A JPH038174B2 JP H038174 B2 JPH038174 B2 JP H038174B2 JP 58091284 A JP58091284 A JP 58091284A JP 9128483 A JP9128483 A JP 9128483A JP H038174 B2 JPH038174 B2 JP H038174B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- steel plates
- steel
- attached
- effect
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
Landscapes
- Artificial Fish Reefs (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
【発明の詳細な説明】
本発明は、主として底棲性魚類を対象とした魚
礁に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fish reef mainly intended for benthic fish.
人工漁礁の機能としては、一般的に渦流効果、
陰影効果、餌付効果、逃避効果、走解性等が要求
される。中でも、渦流効果は、集魚効果を発揮さ
せる上で重要な機能である。 Artificial reefs generally have eddy current effects,
Shading effects, feeding effects, escape effects, taxis, etc. are required. Among these, the eddy current effect is an important function in achieving the fish attracting effect.
従来の魚礁は、鋼材、コンクリート、ゴム材、
合成樹脂、石材、木材等の各種素材により骨組み
構造に構成されているものが多いが、いずれの構
造形態も上記要求を全て満足できるものではな
い。 Traditional fish reefs are made of steel, concrete, rubber,
Many of them have a frame structure made of various materials such as synthetic resin, stone, and wood, but none of these structural forms can satisfy all of the above requirements.
特に、現在ではコンクリートブロツク魚礁が多
く用いられているが、コンクリートブロツク魚礁
は、大きさや構造形態を自由に決められなく、ま
た重量が重いため沈澱時の衝撃に注意を要する欠
点がある。 In particular, concrete block reefs are often used today, but concrete block reefs have the disadvantage that the size and structural form cannot be freely determined, and because they are heavy, care must be taken to avoid impact when settling.
本発明の目的は、このような点に鑑み、漁礁に
要求される全ての機能、つまり渦流効果、陰影効
果、餌付効果、逃避効果、走解性等を全て満足さ
せることができ、特に渦流効果や逃避効果に優
れ、しかも、いずれの方向を向いて沈設されても
同じ流動変化が期待できる漁礁を提供することに
ある。 In view of these points, it is an object of the present invention to satisfy all the functions required of fishing reefs, such as eddy current effect, shading effect, baiting effect, escape effect, and motaxis. The objective is to provide a fishing reef that is excellent in effectiveness and escape effect, and can be expected to have the same change in flow no matter which direction it is sunk.
一般に、鋼製魚礁は、他の素材と比べて貝類や
海草類の付着が早く、かつプランクトン等の微生
物の発生も早いため、集魚効果に優れている。本
発明は、この鋼製魚礁の利点を生かし、面構造を
基本とした構造形態とすることにより、上記要求
を全て満足させるようとするものである。 In general, steel fish reefs have excellent fish-attracting effects because they allow shellfish and seaweeds to adhere to them more quickly than other materials, and microorganisms such as plankton occur more quickly. The present invention aims to satisfy all of the above requirements by taking advantage of the advantages of this steel reef and creating a structural form based on a planar structure.
具体的には、型鋼によつて骨組みされた枠体を
平面が正多角形状をなした立体構造に形成し、そ
の枠体を上面に複数の開口が適所に形成されるよ
うに複数の鋼板を一定の規則性をもつて取付ける
とともに、枠体の各周面に複数の鋼板を多段の市
松模様状にかつ各周面相互で同一配置態様に取付
け、更に、枠体の内部でかつ前記各周面と対向す
る複数の垂直面内に、複数の鋼板を前記周面に取
付けられた鋼板に対して上下方向へ段違い状に取
付けた形態とすることにより、上記目的を達成し
ようとするものである。 Specifically, a frame made of shaped steel is formed into a three-dimensional structure with a regular polygonal plane, and a plurality of steel plates are attached to the top surface of the frame so that a plurality of openings are formed at appropriate locations. At the same time, a plurality of steel plates are installed on each circumferential surface of the frame in a multi-stage checkered pattern and in the same arrangement on each circumferential surface, and further, inside the frame and on each circumference. The above objective is achieved by attaching a plurality of steel plates in a plurality of vertical planes facing the surface in a vertically staggered manner with respect to the steel plate attached to the circumferential surface. .
以下、本発明の一実施例を図面に基づいて説明
する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は本実施例の魚礁を示す斜視図、第２図
は平面図、第３図は第２図の−線断面図、第
４図は第３図の−線断面図である。これらの
図において、平面からみて格子枠状に、かつ各側
面からみて横長長方形枠状にそれぞれ骨組みされ
た枠体１が形成されている。枠体１は、前記格子
枠の各交点に垂直に配置された複数本の縦型鋼２
と、これらの縦型鋼２の上端部および下端部を格
子状に連結する複数本の横型鋼３とから構成され
ている。前記縦型鋼２のうち、前記枠体１の外周
輪郭線上に配置された縦型鋼２の下端には、脚プ
レート４がそれぞれ水平に取付けられている。こ
れにより、潮流による枠体１の転倒が防止され、
かつ洗掘等により埋設が防止されている。 FIG. 1 is a perspective view showing the fish reef of this embodiment, FIG. 2 is a plan view, FIG. 3 is a cross-sectional view taken along the line -- in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line -- in FIG. In these figures, a frame body 1 is formed in the shape of a lattice frame when viewed from above, and in the shape of a horizontally long rectangular frame when viewed from each side. The frame body 1 includes a plurality of vertical steels 2 arranged perpendicularly to each intersection of the lattice frame.
and a plurality of horizontal steels 3 connecting the upper and lower ends of these vertical steels 2 in a lattice shape. Among the vertical steels 2, leg plates 4 are horizontally attached to the lower ends of the vertical steels 2 arranged on the outer peripheral contour of the frame 1, respectively. This prevents the frame 1 from falling due to tidal currents,
Burial is also prevented by scouring, etc.
一方、前記枠体１の上面には、第２図から明ら
かなように、前記縦型鋼３によつて格子状に仕切
られた９個の正方形枠５1〜５9のうち、角部およ
び中央部の正方形枠５1，５3，５5，５7，５9内の
四隅に三角形状の鋼板１１が取付けられている。
つまり、枠体１の上面に複数の開口が適所に形成
されるように、三角形状の複数の鋼板１１が一定
の規則性をもつて取付けられている。 On the other hand, on the upper surface of the frame 1, as is clear from FIG . Triangular steel plates 11 are attached to the four corners of the square frames 5 1 , 5 3 , 5 5 , 5 7 , 5 9 .
That is, a plurality of triangular steel plates 11 are attached with a certain regularity so that a plurality of openings are formed at appropriate positions on the upper surface of the frame 1.
また、前記枠体１の前後方向および横方向にお
いて、互いに隣接する縦型鋼２の間には、長方形
状の鋼板１２が上下方向に対して１幅間隔おきに
取付けられている。これらの鋼板１２は、同一垂
直面上に取付けられた鋼板同志が市松模様を構成
するように、かつ前後方向および横方向において
互いに平行な鋼板同志が上下方向へ１幅分ずつず
れるように、つまり段違い状に、それぞれ配置さ
れている。これにより、前記横型鋼３によつて仕
切られた９個の正方形枠５1〜５9は、上下の鋼板
１２の間に構成される垂直開放面１４を通じて水
平方向へ順次連通されている。つまり、垂直開放
面１４を通じて流入する潮流を段違い状の鋼板１
２によつて正方形枠５1〜５9へ向かつて上昇、い
わゆる湧昇流を発生させる構造に形成されてい
る。 Further, rectangular steel plates 12 are attached at intervals of one width in the vertical direction between the vertical steels 2 adjacent to each other in the longitudinal and lateral directions of the frame 1. These steel plates 12 are arranged so that the steel plates installed on the same vertical plane form a checkerboard pattern, and the steel plates that are parallel to each other in the longitudinal and lateral directions are shifted by one width in the vertical direction. They are arranged in different steps. Thereby, the nine square frames 5 1 to 5 9 partitioned by the horizontal steel 3 are successively communicated in the horizontal direction through the vertical open surface 14 formed between the upper and lower steel plates 12 . In other words, the tidal current flowing in through the vertical open surface 14 is
2, the structure is formed to generate a so-called upwelling flow that rises toward the square frames 5 1 to 5 9 .
更に、前記枠体１の上下方向における中央位置
および下部位置には、第３図および第４図から明
らかなように、前記各正方形枠５1〜５9の内部
に、その正方形枠５1〜５9の一部を閉じる長方形
状の鋼板１３が取付けられている。これらの鋼板
１３は、同一水平面上に取付けられた鋼板同志が
市松模様を構成するように、かつ上下の鋼板同志
が互いにずれるように、それぞれ配置されてい
る。これにより、前記枠体１の上底面間、つまり
各正方形枠５1〜５9の上底面間は、鋼板１３で閉
じられなかつた水平放面１５を通じて連通されて
いる。 Further, as is clear from FIGS. 3 and 4, at the center and lower positions of the frame 1 in the vertical direction, square frames 5 1 to 5 9 are provided inside each of the square frames 5 1 to 5 9 . A rectangular steel plate 13 is attached that closes a part of 59 . These steel plates 13 are arranged so that the steel plates attached on the same horizontal plane form a checkerboard pattern, and the upper and lower steel plates are offset from each other. Thereby, the upper base surfaces of the frame 1, that is, the upper base surfaces of each of the square frames 5 1 to 5 9 are communicated through the horizontally radiating surface 15 that is not closed by the steel plate 13 .
従つて、本実施例によれば、型鋼２，３によつ
て骨組みされた枠体１の内部に、鋼板１１，１
２，１３によつて適度に仕切られた空間が構成さ
れるため、陰影効果および逃避効果を期待でき
る。 Therefore, according to this embodiment, the steel plates 11 and 1 are placed inside the frame 1 that is made up of the shaped steels 2 and 3.
Since a space appropriately partitioned by 2 and 13 is constructed, a shadow effect and an escape effect can be expected.
特に、枠体１の周面には鋼板１２が多段の市松
模様状に配置されているから逃避性に優れ、か
つ、枠体１の内部を仕切る鋼板１２が周面の鋼板
１２に対して段違い状に配置されているため逃避
効果が高い上、周囲を回遊する場合と同様な走解
性を期待できる。 In particular, since the steel plates 12 are arranged in a multi-stage checkered pattern on the circumferential surface of the frame 1, the escape property is excellent, and the steel plates 12 that partition the inside of the frame 1 are at different levels from the steel plates 12 on the circumferential surface. Because they are arranged in a shape, they have a high escape effect, and can be expected to have the same motility as when they migrate around the surrounding area.
しかも、枠体１の内部を仕切る鋼板１２が段違
い状に配置されていることは、周面の垂直開放面
１４を通じて流入した潮流を段違い状の鋼板１２
によつて上面側の正方形枠５1〜５9へ向かつて上
昇、いわゆる湧昇流を発生させる流動変化（渦流
効果）が期待できる。従つて、海底に近い部分の
深層水（栄養の豊かな海水）を上昇させ、海面に
近い表層水（栄要の希釈な海水）と混合して集魚
効果を発揮させることができる。 Moreover, the fact that the steel plates 12 that partition the inside of the frame 1 are arranged in a stepped manner means that the current flowing in through the vertical open surface 14 on the circumferential surface is directed to the stepped steel plates 12.
As a result, a flow change (eddy current effect) can be expected that causes the flow to rise toward the square frames 5 1 to 5 9 on the upper surface side, producing a so-called upwelling flow. Therefore, it is possible to raise the deep water near the seabed (seawater rich in nutrients) and mix it with the surface water near the sea surface (seawater diluted in nutrients) to attract fish.
また、これらの鋼板１１，１２，１３を適度の
面幅とすれば、餌付効果や走解性の点についても
充分その効果を発揮させることができる。 Moreover, if these steel plates 11, 12, and 13 are made to have an appropriate surface width, it is possible to sufficiently exhibit the effects in terms of feeding effect and running ability.
特に、底棲性魚類の中には、例えばマダイ、カ
レイ、カサゴなど体の一部を固体に接近または接
触させる魚類がいるが、本実施例の魚礁では面構
造を基本形態としているため、これらの魚類に適
した環境をつくることができる。 In particular, some bottom-dwelling fish, such as red sea bream, flounder, and rockfish, approach or come into contact with solid objects; It is possible to create an environment suitable for various types of fish.
また、枠体１を平面からみて正方形状の立体構
造に形成するとともに、枠体１の周面を構成する
各側面に鋼板１２を同一の配置様態で取付けたの
で、つまり各側面を同一態様としたので、魚礁そ
のものの方向が全方向性で、いずれの方向を向い
て沈設されたとしても、同じ流動変化を期待する
ことができる。しかも、枠体１の上面には鋼板１
１によつて閉塞されなかつた空間が対称的に構成
され、かつそれらの空間が枠体１の下面側へ連通
しているため、これらの空間が方向舵として機能
する結果、沈設時に垂直に沈下しやすく、従つて
予定位置に正しい姿勢で設置させることができ
る。更に、枠体１の下端には脚プレート４を設け
たので、潮流による転倒を防止することができる
上、洗掘等による埋設を防ぐことができる。 In addition, the frame 1 is formed into a square three-dimensional structure when viewed from the top, and the steel plates 12 are attached to each side of the frame 1 in the same arrangement, that is, each side is arranged in the same manner. Therefore, the direction of the reef itself is omnidirectional, and no matter which direction it is sunk, we can expect the same changes in flow. Moreover, there is a steel plate 1 on the top surface of the frame 1.
The spaces that were not closed by the frame 1 are configured symmetrically, and these spaces communicate with the lower surface of the frame 1. As a result, these spaces function as a rudder, and as a result, they sink vertically when submerged. Therefore, it can be installed at a predetermined position and in the correct posture. Furthermore, since the leg plate 4 is provided at the lower end of the frame 1, it is possible to prevent the frame from falling due to tidal currents, and also to prevent burial due to scouring or the like.
また、全体が鋼材によつて構成されているた
め、他の素材に比べ集魚効果に優れている。特
に、コンクリートブロツク魚礁と比べた場合、単
位容積当りの重量が軽いため、沈設時の衝撃が小
さく、また投入時の分散や積み重なりが解決でき
る。 In addition, since the entire structure is made of steel, it is more effective at attracting fish than other materials. In particular, when compared to concrete block fish reefs, the weight per unit volume is lighter, so the impact during sinking is smaller, and the problem of dispersion and piling up during loading can be solved.
なお、枠体１は、上記実施例で述べた平面が正
方形形状の立体構造物に限られるものでなく、例
えば第５図に示す如く平面が正三角形状の立体構
造物、或いは第６図に示す如く平面が正六角形状
の立体構造物等、いわゆる平面が正多角形の立体
構造としても同等の効果を奏することができる。
要するに、枠体１の構造形態は、どの方向からの
潮流に対して同条件の環境をつくれるものであれ
ば、いずれの形態であつてもよい。 Note that the frame 1 is not limited to the three-dimensional structure having a square plane as described in the above embodiment, but may be, for example, a three-dimensional structure having an equilateral triangular plane as shown in FIG. As shown, the same effect can be achieved using a three-dimensional structure whose plane is a regular polygon, such as a three-dimensional structure whose plane is a regular hexagon.
In short, the structural form of the frame 1 may be any form as long as it can create an environment with the same conditions for tidal currents from any direction.
なお、以上の実施例では、単体礁として説明し
たが、上述した基本構成を変えずに魚礁の規模を
自由に変えれば、群対礁や魚礁群落にも応用する
ことができる。 Although the above embodiment has been described as a single reef, it can also be applied to a group of reefs or a reef community by freely changing the size of the reef without changing the basic configuration described above.
以上の通り、本発明によれば、魚礁に要求され
る全ての機能、つまり渦流効果、陰影効果、餌付
効果、逃避効果、走解性等を全て満足させること
ができ、特に渦流効果や逃避効果に優れている
上、いずれの方向を向いて沈設されても同じ流動
変化を期待できる漁礁を提供することができる。 As described above, according to the present invention, all functions required for fish reefs, such as eddy current effect, shading effect, feeding effect, escape effect, and motaxis, can be satisfied, and in particular, eddy current effect and escape In addition to being highly effective, it is possible to provide a fishing reef that can be expected to have the same change in flow no matter which direction it is sunk.
第１図は本発明の一実施例を示す斜視図、第２
図は同上平面図、第３図は第２図の−線断面
図、第４図は第３図の−線断面図、第５図お
よび第６図はそれぞれ本発明の他の実施例を示す
斜視図である。
１……枠体、２，３……型鋼、１１，１２，１
３……鋼板。
Fig. 1 is a perspective view showing one embodiment of the present invention;
3 is a sectional view taken along the line -- in FIG. 2, FIG. 4 is a sectional view taken along the - line in FIG. 3, and FIGS. 5 and 6 each show other embodiments of the present invention. FIG. 1...Frame body, 2,3...Shape steel, 11,12,1
3...Steel plate.
Claims (1)
角形状をなした立体構造に形成し、その枠体の上
面に複数の開口が適所に形成されるように複数の
鋼板を一定の規則性をもつて取付けるとともに、
枠体の各周面に複数の鋼板を多段の市松模様状に
かつ各周面相互で同一配置態様に取付け、更に、
枠体の内部でかつ前記各周面と対向する複数の垂
直面内に、複数の鋼板を前記周面に取付けられた
鋼板に対して上下方向へ段違い状に取付けたこと
を特徴とする漁礁。1 A frame made of shaped steel is formed into a three-dimensional structure with a regular polygonal plane, and a plurality of steel plates are arranged with a certain regularity so that a plurality of openings are formed at appropriate positions on the upper surface of the frame. At the same time as installing it with
A plurality of steel plates are attached to each peripheral surface of the frame body in a multi-stage checkered pattern and in the same arrangement on each peripheral surface, and further,
A fishing reef characterized in that a plurality of steel plates are attached inside a frame body and in a plurality of vertical planes facing each of the circumferential surfaces in a vertically stepped manner relative to the steel plates attached to the circumferential surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58091284A JPS59216527A (en) | 1983-05-23 | 1983-05-23 | Fish bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58091284A JPS59216527A (en) | 1983-05-23 | 1983-05-23 | Fish bank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59216527A JPS59216527A (en) | 1984-12-06 |
| JPH038174B2 true JPH038174B2 (en) | 1991-02-05 |
Family
ID=14022158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58091284A Granted JPS59216527A (en) | 1983-05-23 | 1983-05-23 | Fish bank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59216527A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0220461U (en) * | 1988-02-29 | 1990-02-09 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5494787U (en) * | 1977-12-16 | 1979-07-04 | ||
| JPS56111765U (en) * | 1980-01-31 | 1981-08-28 |
-
1983
- 1983-05-23 JP JP58091284A patent/JPS59216527A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59216527A (en) | 1984-12-06 |
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