JP3946333B2

JP3946333B2 - Underwater sacrifice feeding device

Info

Publication number: JP3946333B2
Application number: JP36482097A
Authority: JP
Inventors: 成治山下; 一弘松村
Original assignee: Hakodate Regional Industry Promotion Organization
Current assignee: Hakodate Regional Industry Promotion Organization
Priority date: 1997-12-22
Filing date: 1997-12-22
Publication date: 2007-07-18
Anticipated expiration: 2017-12-22
Also published as: JPH11178471A

Description

【０００１】
【発明の属する技術分野】
本願発明は、水中に設置された生け簀に養殖されている魚介類に餌を与える水中生け簀給餌方法及び同装置に関する。
【０００２】
【従来の技術】
従来、水中に設置された生け簀に養殖されている魚介類に餌を与えるには、生け簀を引き上げて餌を与えたり、水面から生け簀付近に餌を投入したり、あるいはダイバーが潜水し餌を与えていた。
【０００３】
【発明が解決しようとする課題】
しかし、前二者は時間と手間がかかり、また水面に撒かれた餌が拡散するため、効率が悪いという欠点があった。また、後者は費用がかかりリスクを伴うという欠点があった。
【０００４】
本願発明は、上記背景に鑑み、水中に設置された生け簀に養殖されている魚介類に効率よく給餌することを目的とする。
【０００５】
【課題を解決するための手段】
上記目的達成のため、本願発明による水中生け簀給餌装置は、水中に設置した生け簀と水上の給餌装置とを垂直方向の給餌路にて連結し、該給餌装置は水を収納する水タンクを備え、上記水タンクの水を上記給餌路に供給することにより上記生け簀に上記水タンクに供給されている餌を供給し、上記水タンクは水が無くなると浮上するよう浮力の設定をした浮力体により水面の位置が外界の水面の位置より高位となるよう設けたことを特徴とする。
また、請求項１記載の水中生け簀給餌装置において、上記給餌装置と連結された給餌路を上記生け簀の直上に配置することを特徴とする。
また、請求項１記載の水中生け簀給餌装置において、上記給餌装置は２槽からなり、上部に餌を収納する餌タンクを備えるとともに、下部に上記水タンクを備えることを特徴とする。
また、請求項３記載の水中生け簀給餌装置において、上記餌タンクと上記水タンクとの間に第１弁を開閉自在に設け、上記水タンクと上記給餌路との間に第２弁を開閉自在に設けたことを特徴とする。
また、請求項１記載の水中生け簀給餌装置において、上記給餌装置は１槽からなり、該槽に餌供給用の開閉蓋を設けることを特徴とする。
また、請求項３乃至請求項５いずれか一記載の水中生け簀給餌装置において、上記給餌装置は槽と上記給餌路との間に弁を開閉自在に設けることを特徴とする。
また、請求項３乃至請求項５いずれか一記載の水中生け簀給餌装置において、上記給餌装置は水を上記水タンクに強制的に送給するポンプを備えることを特徴とする。
また、請求項３乃至請求項５いずれか一記載の水中生け簀給餌装置において、上記給餌装置は水を上記水タンクに強制的に送給するポンプを備えるとともに、槽と上記給餌路との間に弁を開閉自在に設けることを特徴とする。
また、請求項１記載の水中生け簀給餌装置において、上記水タンクの周囲に浮力体を設けたことを特徴とする。
また、請求項９記載の水中生け簀給餌装置において、上記浮力体が浮力を可変とすることを特徴とする。
また、請求項１記載の水中生け簀給餌装置において、上記水タンクに通管を設けたことを特徴とする。
【０００６】
【発明の実施の形態】
次に、実施の形態を示す図面に基づき本願発明による水中生け簀給餌方法及び同装置をさらに詳しく説明する。図１において、生け簀１は海底ＳＧに設置され、この中に適宜魚介類が養殖されている。一方、海面Ｓには給餌装置３を設け、該給餌装置３と生け簀１とはビニールホース、鉄パイプ等からなる管状の給餌路５により連結される。上記給餌装置３は２槽からなり、上部に餌６を入れる餌タンク７を備え、下部に水８を入れる水タンク９を備える。上記餌タンク７と上記水タンク９との間には、シャッタ弁作動機構１１により開閉自在とされた第１弁１３を設ける。また水タンク９と給餌路５の接続口との間には、上記シャッタ弁作動機構１１により開閉自在とされた第２弁１５を設ける。水タンク９の周囲には浮力体１７を設け、水タンク９を海面Ｓより高位置に設ける。１９は空気抜きあるいは水の補給のために上記水タンク９に設けた通管である。
【０００７】
次に給餌作業の手順を説明する。シャッタ弁作動機構１１を作動させ、第１弁１３及び第２弁１５を開とすると、餌タンク７より餌６が水タンク９内に落下し、また水タンク９より給餌路５内に水８が落下する。このとき水タンク９の水面１０は給餌装置３の余剰浮力分だけ海面Ｓより高位に位置しており、海面Ｓと水タンク９内の水面１０との間に高さｈ₂ が生ずるため、水の流れが発生する。
【０００８】
この点をさらに詳しく説明する。まず給餌路５に連通する水タンク９内の水の水面１０は外界、即ち、海面Ｓより高位置となっている。したがって、給餌路５の出口５ａの水圧Ｐ₂ と外界の水圧Ｐ₁ は、数１及び数２で示す値となっている。ここでｈ₁ は海底ＳＧから海面Ｓまでの高さ、ｈ₂ は海面Ｓと水面１０との間の高さである。即ち、給餌路５の出口５ａの水圧Ｐ₂ と外界の水圧Ｐ₁ との関係はＰ₂ ＞Ｐ₁ であるから、水は圧力の高い方から低い方に流れ、給餌路５内では出口５ａに向かって水の流れが発生する。
【０００９】
【数１】

【００１０】
【数２】

【００１１】
よって、この水の流れに乗って水タンク９内に落下した餌６が給餌路５を通って生け簀１内に供給されることになる。餌６を乗せてきた水の流れは生け簀１より海中に流出する。なお、給餌装置３は水８が無くなると浮上するように浮力体１７の浮力を設定してあるので、水タンク９内の水面は絶えず海面Ｓより高位にある。またこの状態で通管１９より水８の補給をする。餌６の供給は開閉蓋７ａを開けて適宜に行なう。
【００１２】
このように本実施の形態による水中生け簀給餌方法及び同装置によれば、簡易な構成の装置により、水中に設置された生け簀に養殖されている魚介類に効率よく給餌することができる。また装置の構成が簡易であるため、メンテナンス等は殆んどフリーである。
【００１３】
本願発明による水中生け簀給餌方法及び同装置は上記実施の形態に限定されない。例えば、給餌装置３は、図２乃至図４に示すように、１槽式であってもよい。１槽式の場合、給餌装置３は水タンク９のみからなるため、餌６の供給は水タンク９に設けた開閉蓋２１を開けて行なうことになる。
【００１４】
また給餌方式は任意であり、例えば弁方式、ポンプ方式、弁とポンプの併用方式等が考えられる。
【００１５】
図２は給餌装置３が１槽式で給餌方式が弁方式の場合である。この場合は、給餌を水タンク９と給餌路５との間に設けたシャッタ弁作動機構１１により開閉自在とされた弁１６にて行なう。
【００１６】
図３は給餌装置３が１槽式で給餌方式がポンプ方式の場合である。この場合は、給餌をポンプ２３にて行なう。該ポンプ２３は海中に連通された導管２５により水タンク９に連結しており、水タンク９内に水８がなくなった場合海水を給餌路５内に強制的に送給する。なお、ポンプ２３としては潮流によって揚水できるポンプ、波力によって揚水できるポンプ等が考えられる。またポンプ２３の設置位置は任意であり、例えば水中であってもよい。
【００１７】
図４は給餌装置３が１槽式で給餌方式が弁とポンプの併用方式の場合である。この場合は、図２で述べた弁１６と図３で述べたポンプ２３を組み合わせてあり、ポンプ２３は水タンク９内に収容された水８の水面１０が設定値より小となったとき作動するよう制御されている。また弁１６は水流を発生させるときだけ開となるよう制御されている。
【００１８】
なお、図示しないが給餌装置３が１槽式で給餌方式がポンプ方式の場合、あるいは、給餌装置３が１槽式で弁とポンプの併用方式の場合も考えられる。
【００１９】
次に餌タンク７及び水タンク９の開蓋は、第１弁１３及び第２弁１５が同時でなくともよく、いずれかの弁の開蓋の先後を問わない。
【００２０】
また給餌路５は、図６に示すように、給餌装置３とのみ連結させ、生け簀１には連結せずその直上に配置することとしてもよい。図６は２槽式の給餌装置３で図示したが、１槽式であってもよいのはもちろんである。
【００２１】
また浮力体１７の設置態様は任意である。例えば、図５に示すように、水タンク９の底部に設置してもよい。この場合は、まず錘り等を用いて給餌装置３を水没させない範囲で沈める。すると水８が生け簀１より給餌路５を経て逆流するので、海面Ｓと同じ高さになるまで水タンク９内に水８を入れる。しかる後餌（図示せず）を入れ錘り等を外すと、給餌装置３は浮上し、図５に示すような状態となり、水面の高低差が出来るため給餌可能となる。
【００２２】
さらに浮力体１７の浮力を可変とすれば、給餌装置３の重量に適宜に対応させ水面差を形成することができるので補給に便利である。
【００２３】
本願発明は水中に設置される生け簀１にはすべて適用することができる。したがって、生け簀１を設置する場所は、海だけでなく、例えば河川湖も含まれ、また水底だけでなく水中も含まれる。
【００２４】
なお、本願発明において水タンク９に入れる水８とは、生け簀１の周りにある水、例えば、海に設置する場合は海水を湖の場合は湖水をいう。
【００２５】
【発明の効果】
このように、本願発明による水中生け簀給餌方法及び同装置によれば、水中に設置された生け簀に養殖されている魚介類に効率よく給餌することができる。
【図面の簡単な説明】
【図１】本願発明による水中生け簀給餌装置の実施の形態を示す概略正面図である。
【図２】本願発明による水中生け簀給餌装置の他の実施の形態を示す概略正面図である。
【図３】本願発明による水中生け簀給餌装置の他の実施の形態を示す概略正面図である。
【図４】本願発明による水中生け簀給餌装置の他の実施の形態を示す概略正面図である。
【図５】浮力体の他の実施の形態を示す図である。
【図６】本願発明による水中生け簀給餌装置のさらに他の実施の形態を示す概略正面図である。
【符号の説明】
１生け簀
３給餌装置
５給餌路
５ａ出口
６餌
７餌タンク
７ａ開閉蓋
８水
９水タンク
１０水面
１１シャッタ弁作動機構
１３第１弁
１５第２弁
１６弁
１７浮力体
１９通管
２１開閉蓋
２３ポンプ
２５導管
Ｓ海面
ＳＧ海底[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an underwater ginger feeding method and apparatus for feeding fish and shellfish cultured in a ginger installed in water.
[0002]
[Prior art]
Conventionally, in order to feed fish and shellfish that have been cultivated in a ginger installed underwater, the ginger is raised and fed, or food is thrown into the vicinity of the ginger from the water surface, or a diver dives and feeds. It was.
[0003]
[Problems to be solved by the invention]
However, the former two have the disadvantages of being inefficient because it takes time and effort, and the food spread on the surface of the water spreads. The latter has the disadvantage of being expensive and risky.
[0004]
In view of the above-mentioned background, the present invention has an object to efficiently feed fish and shellfish cultivated in a ginger installed in water.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an underwater sacrifice feeding device according to the present invention connects a sacrifice installed in water and a water feeding device in a vertical feeding path, and the feeding device includes a water tank for storing water, By supplying water from the water tank to the feeding path, the feed supplied to the water tank is supplied to the sacrifice, and the water tank is floated by a buoyant body set to float when water runs out. The position of is provided so as to be higher than the position of the external water surface.
Moreover, the underwater sacrifice feeding apparatus of Claim 1 WHEREIN: The feeding path connected with the said feeding apparatus is arrange | positioned just above the said sacrifice.
The underwater sacrifice feeding apparatus according to claim 1, wherein the feeding apparatus includes two tanks, and includes a food tank for storing food in an upper part and the water tank in a lower part.
The underwater sacrifice feeding apparatus according to claim 3, wherein a first valve is provided to be openable and closable between the food tank and the water tank, and a second valve is openable and closable between the water tank and the feeding path. It is characterized by being provided in.
The underwater sacrifice feeding apparatus according to claim 1, wherein the feeding apparatus comprises one tank, and an opening / closing lid for feeding food is provided in the tank.
Further, in underwater cages feeding apparatus according to any one claim 3 through claim 5, the above feeding apparatus and providing a valve openably between the tank and the feeding path.
Further, in underwater cages feeding apparatus according to any one claim 3 through claim 5, the above feeding device, comprising a forced-feed Kyusuru pump to the water tank of water.
Further, in underwater cages feeding apparatus according to any one claim 3 through claim 5, together with the above-mentioned feeding device comprises a forced feed Kyusuru pump to the water tank of water, between the tank and the feeding path A valve is provided to be freely opened and closed.
Moreover, the underwater sacrifice feeding apparatus of Claim 1 WHEREIN: The buoyancy body was provided around the said water tank, It is characterized by the above-mentioned.
Moreover, the underwater sacrifice feeding apparatus of Claim 9 WHEREIN: The said buoyancy body makes buoyancy variable.
The underwater sacrifice feeding apparatus according to claim 1, wherein a pipe is provided in the water tank.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, the underwater sacrifice feeding method and apparatus according to the present invention will be described in more detail with reference to the drawings showing embodiments. In FIG. 1, a ginger 1 is installed on the seabed SG, and fish and shellfish are appropriately cultivated therein. On the other hand, a feeding device 3 is provided on the sea surface S, and the feeding device 3 and the sacrifice 1 are connected by a tubular feeding path 5 made of a vinyl hose, an iron pipe or the like. The feeding device 3 includes two tanks, and includes a food tank 7 that holds food 6 in the upper portion and a water tank 9 that holds water 8 in the lower portion. A first valve 13 that can be opened and closed by a shutter valve operating mechanism 11 is provided between the bait tank 7 and the water tank 9. A second valve 15 that can be opened and closed by the shutter valve operating mechanism 11 is provided between the water tank 9 and the connection port of the feeding path 5. A buoyancy body 17 is provided around the water tank 9, and the water tank 9 is provided at a position higher than the sea level S. Reference numeral 19 denotes a through pipe provided in the water tank 9 for air venting or water replenishment.
[0007]
Next, the procedure of feeding work will be described. When the shutter valve operating mechanism 11 is operated and the first valve 13 and the second valve 15 are opened, the bait 6 falls from the bait tank 7 into the water tank 9, and the water 8 enters the feeding channel 5 from the water tank 9. Falls. At this time, the water surface 10 of the water tank 9 is positioned higher than the sea surface S by the surplus buoyancy of the feeding device 3, and a height h ₂ is generated between the sea surface S and the water surface 10 in the water tank 9. Flow occurs.
[0008]
This point will be described in more detail. First, the water surface 10 of the water in the water tank 9 communicating with the feeding path 5 is located higher than the outside, that is, the sea surface S. Therefore, the water pressure P _{2 at} the outlet 5 a of the feeding path 5 and the water pressure P ₁ in the outside world are values represented by Equation 1 and Equation 2. Here, h ₁ is the height from the sea floor SG to the sea surface S, and h ₂ is the height between the sea surface S and the water surface 10. That is, since the relationship between the water pressure P _{2 at} the outlet 5 a of the feeding path 5 and the water pressure P _{1 of the} outside world is P ₂ > P ₁ , water flows from the higher pressure to the lower pressure, and the outlet 5 a in the feeding path 5. Flow of water is generated toward
[0009]
[Expression 1]

[0010]
[Expression 2]

[0011]
Therefore, the bait 6 that has fallen into the water tank 9 while riding this water flow is supplied into the sacrifice 1 through the feeding path 5. The flow of water carrying the bait 6 flows out of the sacrifice 1 into the sea. In addition, since the buoyancy of the buoyancy body 17 is set so that the feeding device 3 floats when the water 8 runs out, the water surface in the water tank 9 is constantly higher than the sea level S. In this state, water 8 is supplied from the through pipe 19. The feed 6 is appropriately supplied by opening the opening / closing lid 7a.
[0012]
As described above, according to the underwater sacrifice feeding method and the apparatus according to the present embodiment, it is possible to efficiently feed the fish and shellfish cultured in the sacrifice set in the water, with a device having a simple configuration. Further, since the configuration of the apparatus is simple, maintenance and the like are almost free.
[0013]
The underwater sacrifice feeding method and apparatus according to the present invention are not limited to the above embodiment. For example, the feeding device 3 may be of a single tank type as shown in FIGS. In the case of the single tank type, the feeding device 3 is composed only of the water tank 9, so that the feeding 6 is supplied by opening the opening / closing lid 21 provided in the water tank 9.
[0014]
Moreover, a feeding system is arbitrary, for example, a valve system, a pump system, a combined system of a valve and a pump, etc. can be considered.
[0015]
FIG. 2 shows a case where the feeding apparatus 3 is of a single tank type and the feeding system is a valve system. In this case, feeding is performed by a valve 16 that can be opened and closed by a shutter valve operating mechanism 11 provided between the water tank 9 and the feeding path 5.
[0016]
FIG. 3 shows a case where the feeding device 3 is a single tank type and the feeding system is a pump system. In this case, feeding is performed by the pump 23. The pump 23 is connected to the water tank 9 by a conduit 25 communicated with the sea, and forcibly feeds the seawater into the feeding path 5 when the water 8 runs out in the water tank 9. As the pump 23, a pump capable of pumping by tidal current, a pump capable of pumping by wave power, and the like are conceivable. The installation position of the pump 23 is arbitrary, and may be, for example, underwater.
[0017]
FIG. 4 shows a case where the feeding device 3 is of a single tank type and the feeding system is a combined system of a valve and a pump. In this case, the valve 16 described in FIG. 2 and the pump 23 described in FIG. 3 are combined, and the pump 23 operates when the water level 10 of the water 8 accommodated in the water tank 9 becomes smaller than the set value. It is controlled to do. The valve 16 is controlled so as to be opened only when a water flow is generated.
[0018]
In addition, although not shown in figure, the case where the feeding apparatus 3 is a 1 tank type and a feeding system is a pump system, or the case where the feeding apparatus 3 is a 1 tank system and is a combined system of a valve and a pump is also considered.
[0019]
Next, the opening of the feed tank 7 and the water tank 9 may not be performed simultaneously with the first valve 13 and the second valve 15, and the opening and closing of either valve may be performed.
[0020]
In addition, as shown in FIG. 6, the feeding path 5 may be connected only to the feeding device 3, and may be arranged directly above the ginger 1 without being connected. Although FIG. 6 illustrates the two-tank type feeding device 3, it is needless to say that a single-tank type feeding device 3 may be used.
[0021]
Moreover, the installation mode of the buoyancy body 17 is arbitrary. For example, you may install in the bottom part of the water tank 9, as shown in FIG. In this case, the feeding device 3 is first submerged in a range not to be submerged using a weight or the like. Then, since the water 8 flows backward from the sacrifice 1 through the feeding path 5, the water 8 is put into the water tank 9 until it becomes the same level as the sea surface S. If a bait | feed (not shown) is put in after an appropriate weight and a weight etc. are removed, the feeding apparatus 3 will float and will be in a state as shown in FIG.
[0022]
Furthermore, if the buoyancy of the buoyancy body 17 is variable, it is convenient for replenishment because a water level difference can be formed corresponding to the weight of the feeding device 3 as appropriate.
[0023]
The present invention can be applied to all the sacrifices 1 installed in water. Therefore, the place where the sacrifice 1 is installed includes not only the sea but also a river lake, for example, and includes not only the bottom but also the water.
[0024]
In the present invention, the water 8 to be put in the water tank 9 means water around the sacrifice 1, for example, seawater when installed in the sea and lake water in the case of a lake.
[0025]
【The invention's effect】
Thus, according to the underwater sacrifice feeding method and apparatus according to the present invention, it is possible to efficiently feed fish and shellfish cultivated in the preserve installed in the water.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing an embodiment of an underwater sacrifice feeding apparatus according to the present invention.
FIG. 2 is a schematic front view showing another embodiment of the underwater sacrifice feeding apparatus according to the present invention.
FIG. 3 is a schematic front view showing another embodiment of the underwater sacrifice feeding apparatus according to the present invention.
FIG. 4 is a schematic front view showing another embodiment of the underwater sacrifice feeding apparatus according to the present invention.
FIG. 5 is a diagram showing another embodiment of a buoyancy body.
FIG. 6 is a schematic front view showing still another embodiment of the underwater sacrifice feeding apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sacrifice 3 Feeding device 5 Feeding path 5a Outlet 6 Feed 7 Feed tank 7a Opening / closing lid 8 Water 9 Water tank 10 Water surface 11 Shutter valve operating mechanism 13 First valve 15 Second valve 16 Valve 17 Buoyant body 19 Through pipe 21 Opening / closing lid 23 Pump 25 Conduit S Sea surface SG Sea floor

Claims

A fish cage installed in water and a feeding device on the water are connected by a vertical feeding channel, the feeding device includes a water tank for storing water, and the water tank supplies water to the feeding channel. The bait was supplied to the water tank, and the water tank was set so that the position of the water surface was higher than the position of the water surface in the outside world by a buoyant body that was set to buoyancy so that it floated when there was no water An underwater sacrifice feeding device characterized by that.

2. The underwater sacrifice feeding apparatus according to claim 1, wherein a feeding path connected to the feeding apparatus is disposed immediately above the sacrifice.

2. The underwater sacrifice feeding apparatus according to claim 1, wherein the feeding apparatus comprises two tanks, and includes a food tank for storing food in an upper part and the water tank in a lower part.

4. The underwater sacrifice feeding apparatus according to claim 3, wherein a first valve is provided so as to be openable and closable between the food tank and the water tank, and a second valve is provided so as to be openable and closable between the water tank and the feeding path. An underwater sacrifice feeding device characterized by that.

2. The underwater sacrifice feeding apparatus according to claim 1, wherein the feeding apparatus comprises one tank, and an open / close lid for supplying food is provided in the tank.

In water cages feeding apparatus according to any one claim 3 through claim 5, the above feeding device underwater fish preserve feeding device characterized by providing a valve openably between the tank and the feeding path.

In claims 3 to underwater cages feeding apparatus according to any one claim 5, the above feeding device underwater fish preserve feeding device, characterized in that it comprises a forced feed Kyusuru pump to the water tank of water.

In water cages feeding apparatus of claims 3 to 5 any one described, along with the above-mentioned feeding device comprises a forced feed Kyusuru pump to the water tank with water, the valve between the tank and the feeding path An underwater ginger feeding device characterized in that it can be opened and closed freely.

2. The underwater sacrifice feeding apparatus according to claim 1, wherein a buoyant body is provided around the water tank.

The underwater sacrifice feeding apparatus according to claim 9, wherein the buoyancy body has variable buoyancy.

The underwater sacrifice feeding apparatus according to claim 1, wherein a pipe is provided in the water tank.