JP3101593B2 - Aquaculture metal silt - Google Patents
Aquaculture metal siltInfo
- Publication number
- JP3101593B2 JP3101593B2 JP09257126A JP25712697A JP3101593B2 JP 3101593 B2 JP3101593 B2 JP 3101593B2 JP 09257126 A JP09257126 A JP 09257126A JP 25712697 A JP25712697 A JP 25712697A JP 3101593 B2 JP3101593 B2 JP 3101593B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- aquaculture
- rope
- sub
- facility
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 title claims description 101
- 238000009360 aquaculture Methods 0.000 title claims description 66
- 244000144974 aquaculture Species 0.000 title claims description 66
- 239000013535 sea water Substances 0.000 claims description 29
- 239000010802 sludge Substances 0.000 claims description 20
- 229920003002 synthetic resin Polymers 0.000 claims description 15
- 239000000057 synthetic resin Substances 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 14
- 239000004460 silage Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 235000015170 shellfish Nutrition 0.000 description 11
- 230000007423 decrease Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000009364 mariculture Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Farming Of Fish And Shellfish (AREA)
Description
【０００１】[0001]
【発明の属する技術の分野】この発明は養殖資材の一つ
として使用される養殖用メタル沈子に関し、特に海中養
殖施設の浮揚防止と安定維持等を確実に図ることがで
き、かつ養殖物や海水に悪影響を及ぼすことのない環境
にやさしいものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal sludge for cultivation used as one of aquaculture materials, and more particularly, to the prevention of floating and stable maintenance of a submerged aquaculture facility, as well as the improvement of aquaculture. It is environmentally friendly without adversely affecting seawater.
【０００２】[0002]
【従来の技術】従来より、沿岸海域等の海水中では海草
類や貝類の育成が行われており、このような海水中で貝
類を育成するための施設（以下「海中養殖施設」とい
う。）としては、たとえば図４に示す如く海面下にメイ
ンロープ７を張り、このメインロープ７に一定の間隔で
サブロープ８を縛り付けるとともに、当該サブロープ８
に貝類９、９…を吊して育成する施設、あるいは、その
ようにサブロープ８に貝類を直接吊すのではなく、サブ
ロープ８の途中に篭１０を取り付け、この篭１０内で幼
貝からその育成までの貝の一貫育成を図る施設等があ
る。2. Description of the Related Art Conventionally, seaweeds and shellfish have been grown in seawater in coastal seas and the like, and as facilities for growing shellfish in such seawater (hereinafter referred to as "sea culture facilities"). For example, as shown in FIG. 4, a main rope 7 is stretched below the sea surface, and a sub-rope 8 is tied to the main rope 7 at regular intervals.
A facility for hanging and growing shellfish 9, 9, ..., or instead of directly hanging shellfish on the sub-rope 8, attach a basket 10 in the middle of the sub-rope 8 and grow from a young shell in this basket 10. There are facilities for the integrated breeding of shellfish.
【０００３】このような海中養殖施設６においては、そ
の浮揚防止と安定維持等を図るためのおもりとして養殖
用メタル沈子１を備えており、この種の養殖用メタル沈
子１は図５に示すように円板状の鉛製金属塊２からなる
とともに、その円板中心より外側に偏心した位置に一つ
の貫通穴３が形成されている。一方、サブロープ８の下
端側は養殖用メタル沈子１を海中養殖施設に取り付ける
ための紐として設けられている。[0003] Such a submerged aquaculture facility 6 is provided with a metal seedling 1 for aquaculture as a weight for preventing its floating and maintaining its stability. Such a metal seedling 1 for aquaculture is shown in FIG. As shown in the figure, a lead-shaped metal lump 2 having a disk shape is formed, and one through hole 3 is formed at a position eccentric to the outside of the center of the disk. On the other hand, the lower end side of the sub-rope 8 is provided as a string for attaching the metal sled 1 for aquaculture to an underwater aquaculture facility.
【０００４】このような養殖用メタル沈子１はサブロー
プ８の下端に取り付けられるが、その取付方法は貫通穴
３の部分にサブロープ２の下端を括り付けることによる
ものとされている。[0004] Such a metal sled for aquaculture 1 is attached to the lower end of the sub-rope 8, and the attachment method is to tie the lower end of the sub-rope 2 to the through hole 3.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
ような従来の養殖用メタル沈子１にあっては、鉛等の金
属塊２からなり、その表面に金属が露出した構造である
ため、表面の金属が腐食して海水中に溶け出る等の不具
合があり、また、溶け出た物質が貝類等の養殖物や海水
に悪影響を及ぼすことも懸念される。However, the conventional metal seedling 1 for aquaculture as described above is composed of a metal mass 2 of lead or the like, and has a structure in which metal is exposed on the surface. In addition, there is a problem that the metal corrodes and dissolves in seawater, and there is a concern that the dissolved substance may adversely affect aquaculture such as shellfish and seawater.
【０００６】しかも、上記のように金属が腐食して海水
中に溶け出たのでは、養殖用メタル沈子１の重量が減少
し、沈子本来のおもりとしての機能が低下してしまい、
海中養殖施設の浮揚防止と安定維持等を十分に図れな
い。Moreover, if the metal corrodes and dissolves in the seawater as described above, the weight of the metal sludge for aquaculture 1 decreases, and the function of the sludge as its original weight decreases.
Prevention of floating and stable maintenance of underwater aquaculture facilities cannot be achieved sufficiently.
【０００７】また、従来の養殖用メタル沈子１では、そ
の形状が円板状であるため、海水の流れに対する抵抗が
大きく、このような形状に起因する抵抗（以下「形状抵
抗」ともいう。）が大きいと、海水の流れで養殖用メタ
ル沈子１が不規則に揺れ動き、その揺れの波動が海中養
殖施設に伝わり、海中養殖施設６が上下左右に動いてし
まい、この点でも、海中養殖施設の安定維持が図れな
い。[0007] In addition, since the conventional metal sludge for aquaculture 1 has a disk shape, the resistance to the flow of seawater is large, and the resistance caused by such a shape (hereinafter also referred to as “shape resistance”). ) Is large, the metal sludge for aquaculture 1 shakes irregularly due to the flow of seawater, the wave of the shake is transmitted to the underwater aquaculture facility, and the underwater aquaculture facility 6 moves up, down, left and right. Inability to maintain stable facilities.
【０００８】この発明は上述の事情に鑑みてなされたも
ので、その目的とするところは海中養殖施設の浮揚防止
と安定維持等を確実に図ることができ、かつ養殖物や海
水に悪影響を及ぼすことのない環境にやさしい養殖用メ
タル沈子を提供することにある。The present invention has been made in view of the above circumstances, and its object is to reliably prevent the floating of an underwater aquaculture facility and maintain its stability, and to adversely affect aquaculture and seawater. It is an object of the present invention to provide an eco-friendly metal silt for aquaculture.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、請求項１記載の発明は、海面下に張られたメインロ
ープと、このメインロープに一定の間隔で縛り付けられ
たサブロープとを有し、そのサブロープに貝類を吊して
育成する海中養殖施設に取り付けられ、その海中養殖施
設の浮揚防止と安定維持を図るためのおもりとして用い
られる円板状に形成された鉛製の金属塊からなる養殖用
メタル沈子において、上記金属塊の中心を基準に１８０
度対向する位置にその表裏面を貫通する一対の貫通穴を
形成するとともに、その一方の貫通穴は、海中養殖施設
のサブロープの下端に当該金属塊を取り付けるための紐
を括る取付け穴として設け、他方の貫通穴は、海水の流
れに対する当該金属塊の抵抗を減少させる手段として設
け、上記金属塊の表面全体に、合成樹脂の被覆層を設け
たことを特徴とする。In order to achieve the above-mentioned object, the invention according to claim 1 is provided by a main body extending below the sea level.
And this main rope are tied at regular intervals
With a sub-rope, and hanging shells on the sub-rope
Attached to mariculture facilities growing in aquaculture metal Chinshi consisting discoid which is formed in a lead made of a metal mass to be used as a weight for the Purpose of flotation prevention and stable maintenance of the mariculture facility, the metal 180 based on the center of the mass
A pair of through holes that penetrate the front and back
And one of the through holes is a submersible aquaculture facility
For attaching the metal block to the lower end of the sub-rope
And the other through hole is for seawater flow.
As a means to reduce the resistance of the metal block to
In addition, a coating layer of a synthetic resin is provided on the entire surface of the metal lump.
【００１０】請求項２記載の発明は、上記海中養殖施設
が、海面下に張られたメインロープと、このメインロー
プに一定の間隔で縛り付けられたサブロープとを有し、
そのサブロープの途中に篭を取り付け、この篭内で幼貝
からその育成までの貝の一貫育成を図る施設であること
を特徴とする。[0010] The invention according to claim 2 is the undersea culture facility.
However, the main rope stretched under the sea surface and this main rope
With a sub-rope tied to the loop at regular intervals,
Attach a basket in the middle of the sub rope, and in this basket
The facility is characterized by the integrated breeding of shellfish from breeding to its breeding .
【００１１】[0011]
【００１２】[0012]
【００１３】[0013]
【００１４】この発明では、養殖用メタル沈子を構成す
る金属塊の表面全体が合成樹脂により被覆され、金属塊
と海水とが完全に非接触となる。According to the present invention, the entire surface of the metal mass constituting the metal seedling for aquaculture is covered with the synthetic resin, and the metal mass and the seawater are completely out of contact.
【００１５】[0015]
【発明の実施の形態】以下、この発明に係る養殖用メタ
ル沈子の一実施形態について図１ないし図３を基に詳細
に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, one embodiment of a metal seedling for aquaculture according to the present invention will be described in detail with reference to FIGS.
【００１６】図１に示す養殖用メタル沈子１は、海中養
殖施設の浮揚防止と安定維持等を図るためのおもりとし
て用いられる金属塊２を具備し、金属塊２は鉛を円板状
に形成してなるとともに、その円板中心より外側に偏心
した位置には一対の貫通穴３、４が設けられている。The metal sludge for aquaculture 1 shown in FIG. 1 is provided with a metal lump 2 used as a weight for preventing floating and maintaining the stability of the underwater aquaculture facility. A pair of through holes 3 and 4 are formed at positions eccentric to the outside of the center of the disk while being formed.
【００１７】両貫通穴３、４は金属塊２の表裏面を貫通
するように形成され、かつ金属塊２の中心を基準に１８
０度対向する位置に穿設されている。また、これらの貫
通穴３、４のうち、一方の貫通穴３は、海中養殖施設に
当該金属塊２を取り付けるための紐を括る取付け穴とし
て設けられ、また、他方の貫通穴４は、海水の流れに対
する当該金属塊２の抵抗を減少させる手段として、その
内部を海水が往来できるように構成されている。The two through holes 3 and 4 are formed so as to penetrate the front and back surfaces of the metal lump 2, and are formed with reference to the center of the metal lump 2.
It is drilled at a position facing 0 degrees. One of the through holes 3 and 4 is provided as an attachment hole for tying a string for attaching the metal mass 2 to the underwater aquaculture facility, and the other through hole 4 is provided with seawater. As means for reducing the resistance of the metal lump 2 to the flow of water, the metal lump 2 is configured so that seawater can flow therein.
【００１８】金属塊２の全表面、すなわち金属塊２の表
裏面と外周面、および貫通穴３、４の内壁には合成樹脂
の被覆層５が設けられている。つまり、この養殖用メタ
ル沈子１は、その内部が鉛で、外面が合成樹脂である金
属と合成樹脂の二重構造として構成されている。なお、
合成樹脂の被覆層５は１ミリメートル以上の厚みを有す
る。A coating layer 5 of a synthetic resin is provided on the entire surface of the metal lump 2, that is, on the front and back surfaces and the outer peripheral surface of the metal lump 2, and on the inner walls of the through holes 3 and 4. In other words, the metal sludge 1 for aquaculture has a double structure of a metal whose interior is lead and whose outer surface is a synthetic resin and a synthetic resin. In addition,
The coating layer 5 of the synthetic resin has a thickness of 1 mm or more.
【００１９】上記のような構成の養殖用メタル沈子１は
図２に示すような成型工程により作成することができ
る。すなわち、この成型工程によると、同図（ａ）に示
すように先ず鉛の金属塊２を成型する。このとき同時
に、一対の貫通穴３、４も成型する。次に、同図（ｂ）
に示すように貫通穴３、４の内壁のみに合成樹脂の被覆
層５を形成する。このような被覆層５の形成は射出成型
法によるものとする。その後、同図（ｃ）に示すように
金属塊２の表裏面と外周面に合成樹脂の被覆層５を形成
する。この被覆層５の形成についても上記と同じく射出
成型法によるものとする。The cultured metal sludge 1 having the above structure can be produced by a molding process as shown in FIG. That is, according to this molding step, the lead metal lump 2 is first molded as shown in FIG. At this time, a pair of through holes 3 and 4 are simultaneously formed. Next, FIG.
As shown in FIG. 3, a coating layer 5 made of a synthetic resin is formed only on the inner walls of the through holes 3 and 4. The formation of the coating layer 5 is performed by an injection molding method. Thereafter, as shown in FIG. 3C, a coating layer 5 of a synthetic resin is formed on the front and back surfaces and the outer peripheral surface of the metal lump 2. The formation of the coating layer 5 is also performed by the injection molding method as described above.
【００２０】次に、上記の如く構成された養殖用メタル
沈子の使用例と作用について図３を用いて説明する。Next, a description will be given of an example of the use and operation of the metal sludge for aquaculture constructed as described above with reference to FIG.
【００２１】上記のような構成の養殖用メタル沈子１
は、同図に示すように海中養殖施設６に取り付けられて
使用される。すなわち、同図に示す海中養殖施設６は、
海面下に張られたメインロープ７と、このメインロープ
７に一定の間隔で縛り付けられたサブロープ８とを有
し、そのサブロープ８に貝類９、９…を吊して育成する
施設である。この施設では、養殖用メタル沈子１はサブ
ロープ７の下端に取り付けられており、その取付方法は
従来と同じく一方の貫通穴３の部分にサブロープ７の下
端を括り付けることによるものとされている。The metal sludge for aquaculture 1 having the above structure
Is used by being attached to the underwater aquaculture facility 6 as shown in FIG. That is, the underwater aquaculture facility 6 shown in FIG.
This facility has a main rope 7 stretched under the sea surface and a sub-rope 8 tied to the main rope 7 at regular intervals, and shells 9, 9... In this facility, the metal sled for aquaculture 1 is attached to the lower end of the sub-rope 7, and the attachment method is to tie the lower end of the sub-rope 7 to one of the through holes 3 as in the related art. .
【００２２】上記施設以外の他の海中養殖施設６として
は、たとえば同図に示すように海面下に張られたメイン
ロープ７と、このメインロープ７に一定の間隔で縛り付
けられたサブロープ８とを有し、そのサブロープ８の途
中に篭１０を取り付け、この篭１０内で幼貝からその育
成までの貝の一貫育成を図る施設がある。この施設にお
いても、養殖用メタル沈子１はサブロープ７の下端に取
り付けられる。なお、その取付方法は前記施設と同じ
く、一方の貫通穴３の部分にサブロープ８の下端を括り
付けることによるものである。As the submerged aquaculture facility 6 other than the above facilities, for example, as shown in the figure, a main rope 7 stretched below the sea surface and a sub rope 8 tied to the main rope 7 at regular intervals are used. There is a facility that has a cage 10 attached to the middle of the sub-rope 8 and aims to consistently grow shells from young shellfish to their growth in the basket 10. Also in this facility, the metal sled for culture 1 is attached to the lower end of the sub rope 7. In addition, the attachment method is by tying the lower end of the sub-rope 8 to one of the through holes 3 as in the above-mentioned facility.
【００２３】上記の如く取り付けられた養殖用メタル沈
子１によると、その表裏面で海水の流れによる抵抗を受
けるが、このとき、養殖用メタル沈子１の表裏面に向か
う海水の流れの一部は、他方の貫通穴４を介して養殖用
メタル沈子１の表面から裏面に、また裏面から表面にス
トレートに抜けるので、その分、海水の流れにより養殖
用メタル沈子１が受ける抵抗と、このような抵抗による
養殖用メタル沈子１の不規則な揺れが減少する。According to the metal sled 1 for aquaculture mounted as described above, the surface of the metal sled 1 receives resistance due to the flow of seawater. The part is straight through from the front surface to the back surface and from the back surface to the front surface of the metal seedling for culture 1 through the other through hole 4, so that the resistance that the metal seedling for culture 1 receives due to the flow of seawater is reduced by that much. Irregular shaking of the metal sled 1 for aquaculture due to such resistance is reduced.
【００２４】上記実施形態の養殖用メタル沈子１は、金
属塊２の表面全体に、合成樹脂の被覆層５を設けたもの
である。このように金属塊２の表面全体が合成樹脂によ
り被覆され、金属塊２と海水とが完全に非接触となるこ
とから、金属塊２の表面金属が腐食して海水中に溶け出
ることを防止でき、この種の溶け出た物質が貝類等の養
殖物や海水に悪影響を及ぼす心配もなく、環境にやさし
い養殖用メタル沈子である。The metal sled 1 for aquaculture of the above embodiment is provided with a coating layer 5 of a synthetic resin on the entire surface of the metal lump 2. As described above, since the entire surface of the metal lump 2 is covered with the synthetic resin and the metal lump 2 is completely out of contact with seawater, the surface metal of the metal lump 2 is prevented from being corroded and dissolved into seawater. This is an environmentally friendly metal seed for aquaculture, without the risk that this type of dissolved substance will have a bad effect on aquaculture such as shellfish and seawater.
【００２５】しかも、この養殖用メタル沈子１による
と、上述の通り金属塊２の表面全体が合成樹脂により被
覆されているので、金属塊表面の腐食や磨耗等による重
量の減少がなく、沈子本来のおもりとしての機能を長期
に亘り維持することができ、海中養殖施設の浮揚防止と
安定維持等を確実に図ることができる。In addition, according to the metal sled 1 for aquaculture, since the entire surface of the metal lump 2 is covered with the synthetic resin as described above, there is no decrease in weight due to corrosion or abrasion of the surface of the metal lump and the like. The function as the original weight of the child can be maintained for a long time, and the floating prevention and stable maintenance of the underwater aquaculture facility can be reliably achieved.
【００２６】また、この養殖用メタル沈子１にあって
は、海水の流れに対する金属塊２の抵抗を減少させる手
段として、金属塊２に貫通穴４を設けたものである。こ
のため、養殖用メタル沈子１の表裏面に向かう海水の流
れの一部が、貫通穴４を介して養殖用メタル沈子１の表
面から裏面に、また裏面から表面にストレートに抜ける
ので、その分、海水の流れにより養殖用メタル沈子１が
受ける抵抗と、このような抵抗による養殖用メタル沈子
１の不規則な揺れが減少する。したがって、養殖用メタ
ル沈子１の大きな揺れの波動が海中養殖施設に伝達され
ることもなく、この点でも、海中養殖施設６の安定維持
が図れる。In the metal sled 1 for aquaculture, a through hole 4 is provided in the metal lump 2 as a means for reducing the resistance of the metal lump 2 to the flow of seawater. For this reason, part of the flow of seawater toward the front and back surfaces of the cultured metal seeds 1 passes straight through from the surface of the cultured metal seeds 1 to the back surface and from the back surface to the front surface through the through-holes 4. that amount, a resistor metal Chinshi 1 receives a cultivation by sea water flow, irregular fluctuation of aquaculture metal Chinshi 1 by such resistance decreases. Therefore, the wave of the large shaking of the metal sled 1 for aquaculture is not transmitted to the underwater aquaculture facility, and also in this respect, the undersea aquaculture facility 6 can be stably maintained.
【００２７】さらに、この養殖用メタル沈子１は、被覆
層５の形成が射出成型によるので、内部の金属塊２と、
その外部の被覆層５との間に気泡が存在せず、衝撃等に
よる気泡部からの内外の剥離を防止でき、強度的にも優
れる。Further, since the formation of the coating layer 5 is performed by injection molding, the metal sludge 1 for aquaculture has the following advantages:
There are no bubbles between the outer coating layer 5 and the inside and outside of the bubble portion due to impact or the like can be prevented, and the strength is excellent.
【００２８】なお、被覆層５の厚さについては、１ミリ
メートル以上であることに限定されるものでなく、金属
塊２の表面金属が腐食して海水中に溶け出ることを防止
できる厚さであればよく、１ミリメートル以下とするこ
とも可能である。It should be noted that the thickness of the coating layer 5 is not limited to 1 mm or more, but a thickness that can prevent the surface metal of the metal lump 2 from corroding and dissolving into seawater. It suffices if it is sufficient, and it is also possible to make it 1 mm or less.
【００２９】[0029]
【発明の効果】この発明に係る養殖用メタル沈子にあっ
ては、上記の如く金属塊の表面全体に、合成樹脂の被覆
層を設けたものである。このように金属塊の表面全体が
合成樹脂により被覆され、金属塊と海水とが完全に非接
触となることから、金属塊の表面金属が腐食して海水中
に溶け出ることを防止でき、この種の溶け出た物質が貝
類等の養殖物や海水に悪影響を及ぼす心配もなく、環境
にやさしい養殖用メタル沈子を提供することができる。According to the metal sludge for aquaculture according to the present invention, a coating layer of a synthetic resin is provided on the entire surface of the metal lump as described above. As described above, since the entire surface of the metal lump is covered with the synthetic resin, and the metal lump and the seawater are completely out of contact with each other, the surface metal of the metal lump can be prevented from being corroded and dissolved into the seawater. It is possible to provide an environmentally friendly metal seedling for cultivation without the fear that the dissolved substances of the seeds will adversely affect cultured products such as shellfish and seawater.
【００３０】しかも、この養殖用メタル沈子によると、
上述の通り金属塊の表面全体が合成樹脂により被覆され
ているので、金属塊表面の腐食や磨耗等による重量の減
少がなく、沈子本来のおもりとしての機能を長期に亘り
維持することができ、海中養殖施設の浮揚防止と安定維
持等を確実に図ることができる。Moreover, according to the metal silage for aquaculture,
As described above, since the entire surface of the metal lump is covered with the synthetic resin, the weight of the metal lump does not decrease due to corrosion, abrasion, etc., and the original function of the sludge can be maintained for a long time. Therefore, it is possible to reliably prevent the floating of the underwater aquaculture facilities and maintain the stability.
【００３１】さらに、この発明に係る養殖用メタル沈子
にあっては、海水の流れに対する金属塊の抵抗を減少さ
せる手段として、金属塊に貫通穴を設けたものである。
このため、養殖用メタル沈子の表裏面に向かう海水の流
れの一部が、貫通穴を介して養殖用メタル沈子の表面か
ら裏面に、また裏面から表面にストレートに抜けるの
で、その分、海水の流れにより養殖用メタル沈子が受け
る抵抗と、このような抵抗による養殖用メタル沈子の不
規則な揺れが減少する。したがって、養殖用メタル沈子
の大きな揺れの波動が海中養殖施設に伝達されることも
なく、この点でも、海中養殖施設の安定維持が図れる。 Further, in the metal seed for aquaculture according to the present invention , a through hole is provided in the metal lump as means for reducing the resistance of the metal lump to the flow of seawater.
Because of this, part of the flow of seawater toward the front and back of the cultured metal seeds passes straight through from the front to the back, and from the back to the front through the through-holes. The resistance of the culture metal sills to the seawater flow and the irregular shaking of the culture metal sills due to such resistance are reduced. Therefore, the waves of the large shaking of the metal sills for aquaculture are not transmitted to the underwater aquaculture facilities, and in this respect, the undersea aquaculture facilities can be stably maintained.
【図１】この発明に係る養殖用メタル沈子の正面図断面
図および側面断面図FIG. 1 is a front cross-sectional view and a side cross-sectional view of an aquaculture metal silt according to the present invention.
【図２】図１に示す養殖用メタル沈子の成型工程の説明
図。FIG. 2 is an explanatory view of a molding step of the metal sludge for culture shown in FIG.
【図３】図１に示す養殖用メタル沈子の使用例の説明
図。FIG. 3 is an explanatory diagram of an example of use of the metal sludge for culture shown in FIG.
【図４】従来の養殖用メタル沈子の使用例の説明図。FIG. 4 is an explanatory view of a usage example of a conventional metal sludge for aquaculture.
【図５】従来の養殖用メタル沈子の正面図断面図および
側面断面図。FIG. 5 is a front sectional view and a side sectional view of a conventional metal sludge for aquaculture.
１ 養殖用メタル沈子 ２ 金属塊 ３、４ 貫通穴 ５ 被覆層 ６ 海中養殖施設 ７ メインロープ ８ サブロープ ９ 貝類 １０ 篭 DESCRIPTION OF SYMBOLS 1 Metal sludge for aquaculture 2 Metal lump 3, 4 Through hole 5 Coating layer 6 Underwater aquaculture facility 7 Main rope 8 Sub rope 9 Shellfish 10 Basket
Claims (2)
メインロープに一定の間隔で縛り付けられたサブロープ
とを有し、そのサブロープに貝類を吊して育成する海中
養殖施設に取り付けられ、その海中養殖施設の浮揚防止
と安定維持を図るためのおもりとして用いられる円板状
に形成された鉛製の金属塊からなる養殖用メタル沈子に
おいて、上記金属塊の中心を基準に１８０度対向する位置にその
表裏面を貫通する一対の貫通穴を形成するとともに、 その一方の貫通穴は、海中養殖施設のサブロープの下端
に当該金属塊を取り付けるための紐を括る取付け穴とし
て設け、 他方の貫通穴は、海水の流れに対する当該金属塊の抵抗
を減少させる手段として設け、 上記金属塊の表面全体に、合成樹脂の被覆層を設けたこ
とを特徴とする養殖用メタル沈子。(1)The main rope stretched under the sea and this
Sub rope tied at regular intervals to the main rope
And cultivate by hanging shells on the sub-ropeUnderwater
Attached to aquaculture facilities to prevent the floating of underwater aquaculture facilities
Used as a weight to maintain stabilityDisk shape
Formed of leadFor metal sludge for aquaculture consisting of metal lump
AndAt a position 180 degrees opposite to the center of the metal lump,
While forming a pair of through holes penetrating the front and back, One of the through holes is at the lower end of the sub-rope of the marine aquaculture facility.
Mounting holes for tying the string for attaching the metal block
Provided The other through-hole is the resistance of the metal mass to seawater flow.
Provided as a means for reducing The entire surface of the metal block is covered with a synthetic resin coating layer.
A metal silage for aquaculture characterized by the following.
メインロープと、このメインロープに一定の間隔で縛り
付けられたサブロープとを有し、そのサブロープの途中
に篭を取り付け、この篭内で幼貝からその育成までの貝
の一貫育成を図る施設であることを特徴とする請求項１
に記載の養殖用メタル沈子。2. The undersea culture facility is submerged.
Main rope and tied to this main rope at regular intervals
With attached sub-rope, and in the middle of the sub-rope
A basket is attached to the basket, and the shell from the young shell to its growth in this basket
2. A facility that aims for integrated training of children.
A metal sludge for aquaculture as described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09257126A JP3101593B2 (en) | 1997-09-22 | 1997-09-22 | Aquaculture metal silt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09257126A JP3101593B2 (en) | 1997-09-22 | 1997-09-22 | Aquaculture metal silt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1189474A JPH1189474A (en) | 1999-04-06 |
| JP3101593B2 true JP3101593B2 (en) | 2000-10-23 |
Family
ID=17302098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09257126A Expired - Fee Related JP3101593B2 (en) | 1997-09-22 | 1997-09-22 | Aquaculture metal silt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3101593B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07183683A (en) * | 1993-12-24 | 1995-07-21 | Nec Corp | Shield structure |
-
1997
- 1997-09-22 JP JP09257126A patent/JP3101593B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07183683A (en) * | 1993-12-24 | 1995-07-21 | Nec Corp | Shield structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1189474A (en) | 1999-04-06 |
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