JPH0319729Y2 - - Google Patents
Info
- Publication number
- JPH0319729Y2 JPH0319729Y2 JP1985199531U JP19953185U JPH0319729Y2 JP H0319729 Y2 JPH0319729 Y2 JP H0319729Y2 JP 1985199531 U JP1985199531 U JP 1985199531U JP 19953185 U JP19953185 U JP 19953185U JP H0319729 Y2 JPH0319729 Y2 JP H0319729Y2
- Authority
- JP
- Japan
- Prior art keywords
- fishing
- artificial reef
- base
- support type
- elastic support
- 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
Links
- 241000251468 Actinopterygii Species 0.000 description 10
- 239000000463 material Substances 0.000 description 3
- 241000238557 Decapoda Species 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000000366 juvenile effect Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は人工魚礁用ブロツクに係り、特に、弾
性体から成る取付部を介して柱状体を設けた弾性
支持型人工魚礁用ブロツクに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a block for an artificial fish reef, and more particularly to an elastic support type block for an artificial fish reef in which a columnar body is provided via a mounting portion made of an elastic body.
日本の漁業における遠洋漁業の減少に伴い、日
本の沿岸漁場を整備開発し、沿岸漁業の振興を図
るため、従来より、例えば８図に示すような人工
魚礁用ブロツク１が使用されている。そして、こ
のような人工魚礁用ブロツク１を多数海中へ投入
して沈設し、人工魚礁場を形成し、その後、一本
釣又は、刺網、延縄等により漁獲するものであ
る。
With the decline in deep-sea fishing in Japan's fishing industry, an artificial reef block 1 as shown in FIG. 8, for example, has been used in the past in order to improve and develop Japan's coastal fishing grounds and promote coastal fishing. A large number of such artificial reef blocks 1 are placed in the sea and submerged to form an artificial reef field, after which fish are caught by pole and line fishing, gillnets, long lines, etc.
ところで、このような人工魚礁場において、底
曳網、船曳網等を使用して網漁業により漁獲作業
を行なつた場合には、第８図に示すように、魚網
２が人工魚礁用ブロツク１に引掛かつてしまい、
漁獲作業効率が低下すると共に魚網２が破損して
しまう場合がある、という欠点が存していた。
By the way, when fishing is carried out by net fishing using a bottom trawl net, a boat seine, etc. in such an artificial reef, as shown in FIG. I once put it away,
There have been disadvantages in that fishing efficiency is reduced and the fishing net 2 may be damaged.
そこで本考案の技術的課題は、魚網、殊に、底
曳網、船曳網、吾智網、巻網、その他の網等を使
用した網漁業により漁獲作業を行なつた場合であ
つても、漁獲作業効率が低下することがないと共
に魚網が引掛かることのない人工魚礁用ブロツク
を提供することにある。 Therefore, the technical problem of the present invention is that even when fishing is carried out by net fishing using fishing nets, especially bottom trawl nets, boat seine nets, Achi nets, purse seine nets, and other nets, To provide a block for an artificial fish reef that does not reduce efficiency and prevents fishing nets from getting caught.
かかる目的を達成するため本考案にあつては、
重量物で構成され海底に着底する基部と、この基
部に取り付けた弾性体からなる取付部と、この取
付部によつて基部に全方向に向け可倒に取り付け
られた柱状体とを有する弾性支持型人工魚礁用ブ
ロツクを海底へ沈設して人工魚礁場を形成するも
のである。
In order to achieve this purpose, the present invention:
An elastic body that has a base made of a heavy object that touches the bottom of the ocean, a mounting part made of an elastic body attached to this base, and a columnar body attached to the base so that it can be tilted in all directions by this mounting part. A supported artificial reef block is sunk into the seabed to form an artificial reef field.
以下、添付図面に示す実施例に基づき本考案を
詳細に説明する。
Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
第１図及び第２図に示すように、本実施例に係
る弾性支持型人工魚礁用ブロツク３は、側面台形
であつて全体方形板状に形成された基部４と、弾
性体としての大型のコイルスプリング５から成る
取付部１９を介して該基部４上に立設された円柱
６とから成る。そして、本実施例に係る弾性支持
型人工魚礁用ブロツク３の基部４はコンクリート
から成り、また、円柱６も同様にコンクリートに
より形成されている。また、該突起６の下端部か
ら基部５の間には、コイルスプリング５を防護す
ると共に魚網の網掛りを防止するためのスカート
８を取付けても良い。 As shown in FIGS. 1 and 2, the elastic support type artificial reef block 3 according to the present embodiment includes a base 4 having a trapezoidal side and a rectangular plate shape as a whole, and a large-sized elastic body. It consists of a column 6 erected on the base 4 via a mounting part 19 made of a coil spring 5. The base 4 of the elastic support type artificial reef block 3 according to this embodiment is made of concrete, and the column 6 is also made of concrete. Further, a skirt 8 may be attached between the lower end of the projection 6 and the base 5 to protect the coil spring 5 and prevent it from getting caught in a fishing net.
第２図に示すように、本実施例に係る弾性支持
型人工魚礁用ブロツク３は、板状に形成された基
部４を有するため、海底に安定して着底する。そ
して、本実施例に係る弾性支持型人工魚礁用ブロ
ツク３は、底曳き又は船曳き網等の魚網７が該円
柱６に引掛つた場合であつても、該円柱６は、コ
イルスプリング５から成る取付部１９を介して基
部４に取付けられているため、第３図に示すよう
に、円柱６は荷重がかかつた方向へ、下端部を支
点として倒れる。従つて、魚網７も円柱６に引掛
つて破損する、という事態を防止することができ
る。 As shown in FIG. 2, the elastic support type artificial reef block 3 according to this embodiment has a base 4 formed in a plate shape, so that it stably lands on the seabed. In the elastically supported artificial reef block 3 according to the present embodiment, even if a fishing net 7 such as a bottom trawl or a boat seine is caught on the column 6, the column 6 is made of a coil spring 5. Since it is attached to the base 4 via the attachment part 19, the column 6 falls down in the direction in which the load is applied, using the lower end as a fulcrum, as shown in FIG. Therefore, it is possible to prevent the fishing net 7 from getting caught on the column 6 and being damaged.
また、第４図は本考案に係る第二実施例を示
し、本実施例に係る弾性支持型人工魚礁用ブロツ
ク９にあつては、円柱２１は、硬質ゴムから成り
ジヤバラ状に形成された弾性体１０から成る取付
部２０を介して基部１１に取付固定されている。
本実施例に係る弾性支持型人工魚礁用ブロツク９
も、前記実施例に係る弾性支持型人工魚礁用ブロ
ツク３と同様に、第５図及び第６図に示すように
魚網１２が円柱６に引掛つた場合であつても、魚
網１２により荷重がかかつた方向へ倒れるもので
ある。 Further, FIG. 4 shows a second embodiment of the present invention, and in the elastic support type artificial fish reef block 9 according to this embodiment, the cylinder 21 is made of hard rubber and has a bellows shape. It is attached and fixed to the base 11 via the attachment part 20 consisting of the body 10.
Elastic support type artificial reef block 9 according to this embodiment
Similarly to the elastic support type artificial reef block 3 according to the embodiment, even when the fishing net 12 is caught on the cylinder 6 as shown in FIGS. 5 and 6, the load is not applied by the fishing net 12. It is something that falls in the opposite direction.
また、第７図は本考案に係る弾性支持型人工魚
礁用ブロツクの第３実施例を示す。本実施例に係
る弾性支持型人工魚礁用ブロツク１３にあつて
は、基部１４上には、前記実施例に係る弾性支持
型人工魚礁用ブロツク３の円柱６よりも細く形成
された柱状体１５が夫々、コイルスプリング１６
により接続され、全体として側面台形から成る構
造体１７を形成しており、この構造体１７も基部
１４上に弾性体としてのコイルスプリング１６に
より形成された取付部１８により基部１４に取付
固定されている。そして、本実施例に係る弾性支
持型人工魚礁用ブロツク１３にあつては、前記実
施例に係る弾性支持型人工魚礁用ブロツク３，９
と同様に魚網が該構造体１７に引掛つた場合であ
つても、構造体１７を構成する柱状体１５は
各々、コイルスプリング１６により接続されてい
ると共に該構造体１７はコイルスプリング１６か
ら成る取付部１８により基部１４に取付固定され
ているため、例えば図中左方から魚網により荷重
を受けた場合には、図中破線で示す状態に変形
し、魚網は破損することはない。 Further, FIG. 7 shows a third embodiment of an elastic support type artificial reef block according to the present invention. In the elastic support type artificial reef block 13 according to the present embodiment, a columnar body 15 formed on the base 14 is thinner than the cylinder 6 of the elastic support type artificial reef block 3 according to the embodiment. 16 coil springs, respectively.
are connected to form a structure 17 having a trapezoidal side surface as a whole, and this structure 17 is also fixed to the base 14 by a mounting part 18 formed by a coil spring 16 as an elastic body on the base 14. There is. The elastic support type artificial reef block 13 according to this embodiment is similar to the elastic support type artificial reef blocks 3 and 9 according to the above embodiment.
Similarly, even if a fishing net is caught in the structure 17, the columnar bodies 15 constituting the structure 17 are each connected by a coil spring 16, and the structure 17 has a mounting structure made of coil springs 16. Since it is attached and fixed to the base 14 by the portion 18, for example, when a load is applied by the fishing net from the left side in the figure, the fishing net deforms to the state shown by the broken line in the figure, and the fishing net will not be damaged.
尚、柱状体の取付部を構成する弾性体の素材、
形状又は構造については上記各実施例に限定され
ない。また、柱状体の素材についても何ら限定さ
れず、ゴム、プラスチツク等の可撓性材料中に発
砲スチロールを入れて形成したものであつても良
く、さらに、軽量気泡コンクリート又はその他の
コンクリート製品により形成されているものであ
つてもよい。 In addition, the material of the elastic body that constitutes the mounting part of the columnar body,
The shape or structure is not limited to the above embodiments. Furthermore, the material of the columnar body is not limited in any way; it may be formed by inserting styrene foam into a flexible material such as rubber or plastic, or it may be formed from lightweight aerated concrete or other concrete products. It may be something that has been done.
本考案は以上のような構成を有することから、
人工魚礁場において底曳網、船曳網等を使用する
網漁業により漁獲作業を行つた場合であつても魚
網が魚礁に引掛かりにくく、また、魚礁に引掛か
つた場合であつても容易に外れるため、漁獲作業
効率を低下させることがない。また、魚網が魚礁
に引掛つて破損してしまう、という事態を防止す
ることができる。さらに、従来、底曳網等を使用
する漁場等においては、魚網が魚礁に引掛かるお
それがあるため、魚礁を利用して漁獲することが
できない場合が多く、底曳網、船曳網等を使用し
た場合には、親魚と共に幼魚、稚ガニ、稚エビ等
も混獲されてしまうため、水産資源が活渇してし
まうおそれがあつた。しかし、本考案に係る弾性
支持型人工魚礁用ブロツクにあつては、魚網が魚
礁に引掛かりにくいため網漁業を行なう海域にも
沈設して人工魚礁漁場を形成することができ、幼
稚魚を充分に保護育成させることが可能となり、
資源が活渇する、という事態を確実に防止するこ
とができる。
Since the present invention has the above configuration,
Even when fishing is carried out by net fishing using bottom trawl nets, boat seine, etc. at artificial reef sites, the fishing nets are less likely to get caught on the reef, and even if they are caught on the reef, they can easily come off. It does not reduce fishing efficiency. Furthermore, it is possible to prevent the fishing net from getting caught on the reef and being damaged. Furthermore, in fishing grounds where trawl nets, etc. are used, it is often impossible to use the reefs to catch fish, as there is a risk that the nets may get caught in the reefs. There was a risk that fisheries resources would be depleted, as young fish, juvenile crabs, and juvenile shrimp were also caught as bycatch along with parent fish. However, in the case of the elastically supported artificial reef block according to the present invention, the fish net is less likely to get caught on the reef, so it can be sunk in sea areas where net fishing is carried out to form an artificial reef fishing ground, and it can hold enough young and young fish. It becomes possible to protect and nurture the
It is possible to reliably prevent a situation where resources are depleted.
第１図は本考案に係る弾性支持型人工魚礁用ブ
ロツクを示す半断面図、第２図は本考案に係る弾
性支持型人工魚礁用ブロツクが海底に着底してい
る状態を示す斜視図、第３図は本考案に係る弾性
支持型人工魚礁用ブロツク魚網が引掛つている状
態を示す斜視図、第４図は本考案に係る弾性支持
型人工魚礁用ブロツクの第二実施例を示す半断面
図、第５図及び第６図は本考案に係る弾性支持型
人工魚礁用ブロツクの第二実施例において、魚網
が人工魚礁用ブロツクに引掛る状態を示す側面
図、第７図は本考案に係る弾性支持型人工魚礁用
ブロツクの第三実施例を示す側面図、第８図は従
来の人工魚礁用ブロツクを示す斜視図である。
３，９，１３……弾性支持型人工魚礁用ブロツ
ク、４，１１，１４……基部、５，１０，１６…
…弾性体（コイルスブリング）、６，２１……柱
状体、１８，１９，２０……取付部。
FIG. 1 is a half-sectional view showing an elastically supported artificial reef block according to the present invention, and FIG. 2 is a perspective view showing the elastically supported artificial reef block according to the present invention in a state where it is on the bottom of the sea. Fig. 3 is a perspective view showing a state in which a fishing net is hooked to the elastically supported artificial reef block according to the present invention, and Fig. 4 is a half section showing a second embodiment of the elastically supported artificial reef block according to the present invention. 5 and 6 are side views showing a state in which a fishing net is caught on the artificial reef block in the second embodiment of the elastic support type artificial reef block according to the present invention, and FIG. FIG. 8 is a side view showing a third embodiment of such an elastic support type artificial reef block, and FIG. 8 is a perspective view showing a conventional artificial reef block. 3, 9, 13...Elastic support type artificial reef block, 4, 11, 14...Base, 5, 10, 16...
...Elastic body (coil spring), 6, 21... Column body, 18, 19, 20... Mounting part.
Claims (1)
基部に取り付けた弾性体からなる取付部と、この
取付部によつて基部に全方向に向け可倒に取り付
けられた柱状体とを有することを特徴とする弾性
支持型人工魚礁用ブロツク。 It has a base made of a heavy object and attached to the bottom of the revision, a mounting part made of an elastic body attached to this base, and a columnar body attached to the base so as to be tiltable in all directions by this mounting part. An elastic support type artificial reef block featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985199531U JPH0319729Y2 (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985199531U JPH0319729Y2 (en) | 1985-12-27 | 1985-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62107662U JPS62107662U (en) | 1987-07-09 |
| JPH0319729Y2 true JPH0319729Y2 (en) | 1991-04-25 |
Family
ID=31161243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985199531U Expired JPH0319729Y2 (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0319729Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544573A (en) * | 1978-09-26 | 1980-03-28 | Kawasaki Steel Corp | Tuyere for oxygen bottom blowing converter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60144857U (en) * | 1984-03-07 | 1985-09-26 | 日本鋼管株式会社 | pseudo tree |
-
1985
- 1985-12-27 JP JP1985199531U patent/JPH0319729Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544573A (en) * | 1978-09-26 | 1980-03-28 | Kawasaki Steel Corp | Tuyere for oxygen bottom blowing converter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62107662U (en) | 1987-07-09 |
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