JPS63167804A - Artificial islet for fishing - Google Patents

Abstract

PURPOSE:To make the setting and movement of an artificial islet easier by a method in which a number of artificial fish banks are formed by vertically thrusting a platform having a buoyancy and by providing a float having an easily controllable buoyancy for the lower end, and the artificial fish banks are attached in a vertically movable manner to the seabed. CONSTITUTION:A platform 2 having a buoyancy is fixed with three legs 3 to the foundation 13, and artificial fish banks 5 thrusting the platform 2 and having a float 4 on its lower end, together with a winch 9 to vertically move the banks 5 and an air supplying mechanism 11 to send compressed air to the float 4, are set on the platform 2. Air is supplied to the float 4 to vertically move the banks 5 so that many kinds of organisms can grow over all water depths from the bottom 6 under water to the water surface. In moving the device, the legs 3 and the banks 5 are raised and the platform 2 is towed by tug boat, etc., on the surface of water. The artificial islet can thus be easily set and moved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an artificial island that can be used for a wide range of purposes, such as fishing, fishing, and other leisure activities.

[Conventional technology]

In recent years, it has become a fishing game for both sea leopard and river fishing. Among these, sea leopard fishing has recently become popular as a leisure activity, and in order to meet this demand, there is a wide demand for recreational fishing facilities especially for sea fishing.

On the other hand, fish reefs are necessary to gather large numbers of various types of fish. Currently, as artificial reefs, sunken ships, old tires, wooden frame structures, and concrete V-shaped or steel structures with specific structural designs are used.

[Problem that the invention seeks to solve]

However, most of the current sea fishing facilities have piers on the coast, so although you can enjoy the atmosphere of sea leopards, the only fish you can catch are those that gather near the quay, so it is difficult to catch fish naturally. The types and quantities were limited.

Also, to catch fish offshore, you must use a boat.
Fishing boats, which are mostly small fishing boats, are difficult for people who get seasick to use.

Furthermore, there is a problem that there are not enough accommodation facilities for sea fishing tourists.

On the other hand, conventional artificial reefs have the following problems. In other words, all conventional artificial reefs are sunk on the seabed, and the fish that gather there are limited to benthic fish around the sunken reef.

In addition, despite the installation of artificial reefs, fishing continues to be poor.
Even if the location turns out to be unsuitable for fishing,
Once submerged, it is difficult to relocate.

Moreover, artificial reefs were developed for fishing purposes, not for recreational purposes.

Therefore, an object of the present invention is to use artificial reefs to collect a large amount of fish of various types, and to use the resources as a fishing ground for fishermen or as a recreational fishing spot. To provide an artificial island for fishing, which can be used in many fields such as research on marine life, can be installed offshore, can be relocated, and can follow changes in water depth. be.

[Means for solving problems]

The present invention provides an artificial island consisting of a horizontal platform having buoyancy and a plurality of rings vertically penetrating the platform and vertically movable for supporting the platform from the bottom of the water. This platform is characterized by having a plurality of artificial fish reefs vertically penetrating the platform, each of which has a float whose buoyancy can be freely controlled fixed to the lower end thereof, and which can be raised and lowered freely.

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a side view showing an embodiment of the artificial fishing island of the present invention used in the sea, and FIG. 2 is a plan view thereof. As shown in FIGS. 1 and 2, the artificial island of the present invention has a planar hexagonal shape with a long side and a short side, located above the water surface 1 and parallel to the water surface structure, and has a predetermined thickness. ,
A platform 2 having buoyancy and a platform 2 which is fixed to the platform 2 by vertically penetrating the vicinity of three short sides of the platform 2 to support the platform 2, and whose lower end is fixed to the foundation 13 on the water bottom 6. The three legs 3, 3.3, and the approximately hexagonal-shaped floats at the lower end, which are vertically penetrated through the platform 2 and supported by the platform 2, are placed at equal intervals near the long sides of the platform 203. 9 artificial reefs with 4 fixed on them 5. ...
, a living facility 7 installed on the top surface of the platform 2, three jacking units (8, 8.8) for raising and lowering legs 3°3.3, and an artificial fish reef 5. ... three winches 9, 9.9 for raising and lowering the floats 4, and a plurality of air supply mechanisms 11.9 for supplying compressed air to the float 4 through air supply pipes. It consists of...

10 is a hose for discharging hot water, and 17 is a wire connecting the winch 9 and the float 4.

The platform 2 is provided with four elliptical openings 14 for fishing at the center thereof.

FIG. 3 is a horizontal sectional view of leg 3. As shown in FIG. 3, the leg 3 has three main pillars 3a, 3a.

3a, and a horizontal reinforcing member 3b that connects the main pillars 3a to each other.

3b, 3b form an equilateral triangular frame in plan view, and inside each of the reinforcing members 3b, a triangular flat plate-shaped /gunnel 12 extending between the reinforcing members 3b is provided from the top to the bottom of the leg 3. It is installed continuously up to.

The framework of leg 3 and panel 12 act as a reef.

The legs 3, 3.3 are each fixed at their lower ends to the water bottom 6 by a foundation 13.

The upper part of the leg 3 protrudes from the upper surface of the platform 2. The protruding upper part of the leg 3 is fitted into a jacking unit 8 installed on the upper surface of the platform 2, and the leg 3 is of a jack type. The platform 2 is raised and lowered by a jacking unit 8.

FIG. 4 is a horizontal sectional view of the artificial reef 5. As shown in FIG. 4, the artificial reef 5 has four main pillars 5a.

5a, 5a, 5a and the horizontal reinforcing members 5b, which connect the main pillars 5a to each other, form a square and diagonal frame. These skeletons act as fish reefs.

The float 4 shown by the dotted line in FIG. 2 has a substantially hexagonal shape.
Artificial fish reefs 5. ...
Three pieces are fixed at equal intervals.

FIG. 5(a) is a front view showing the seawater intake port of float 4;
FIG. 5(b) is a sectional view showing the internal structure.

As shown in FIGS. 5(a) and 5(b), seawater flows into and out of the float 4 through a plurality of seawater intake ports (sea chests) 15 provided on the outer surface of the float 4.
I'll do my best. The seawater intake port 15 is provided in a recess 15a having an opening extending slightly upward from the lower end surface of the float 4 so as not to be buried in the water bottom 6.

FIG. 6 is a sectional view showing an air supply mechanism for the float 4.

As shown in FIG. 6, the air supply mechanism 11 includes an artificial reef 5
The main pillar 5a' is attached to the top of one of the main pillars 5a composing the main pillar 5a', and the main pillar 5a' is used as an air supply pipe.

The air supply mechanism 11 supplies compressed air from an air pump (not shown) installed on the platform 2 to the artificial reef 5 via a telescopic flexible hose 18.
The air is fed into the float 4 through the main pillar 5 a', or the air filled in the float 4 is exhausted. 21 is a valve for exhaust, and 22 is a valve that opens and closes for supplying compressed air.

When the air supply mechanism 11 exhausts the air inside through the main column 5a', the seawater 23 flows into the seawater intake port 1 in the float 4.
5, and the float 4 is filled with seawater 23.

In addition, the float 4 is equipped with an air supply mechanism 11 and a main column 5.
When compressed air is sent through a', the seawater 23 filling the float 4 is discharged to the outside from the seawater intake port 15, and the float 4 is filled with air.

Figures 7(a) and (b) show artificial reefs 5. . . is an explanatory diagram showing a method of raising and lowering.

As shown in FIG. 7(b), when descending the artificial reef 5, the valve 21 is opened and the valve 22 is closed. When the air (indicated by the arrow) is exhausted from inside the float 4 and the inside of the float 4 is filled with seawater 23, the winches 9, 9.9 are rewound all at once. At this point, the artificial fishing reef 5 descends to the bottom 6 due to its own weight and the weight of the float 4 filled with seawater 23.

As shown in FIG. 7(a), when raising the artificial reef 5, the valve 21 is closed, the valve 22 is opened, and compressed air (indicated by the arrow) is sent into the float 4. Seawater 23 is discharged. Accordingly, once the inside of the float 4 is filled with air, the winch 9.9.9 is activated and the artificial reef 5. ...and hoist up the float 4. This hoisting operation can be carried out extremely easily by the buoyant force of the float 4, so a small capacity winch 9 is sufficient.

At this time, artificial reef 5. All lifting and lowering of ... is done in various directions.

The hot water discharge hose 10 discharges the hot water used in the residential facility 7 into the sea, and is useful for collecting fish.

Residential facility 7 will be used as accommodation for approximately nine people. For example, if a helipad 19 is provided on the roof of the residential facility 7, communication with land, replenishment of supplies, etc. can be carried out using a helicopter 20.

When moving the artificial island of the present invention, the legs 3 and the artificial reef 5 are raised and separated from the water bottom 6, and the platform 2 is floated on the water. and a tugboat (not shown)
By towing the fish with a boat, etc., the fish can be easily moved to the next fishing ground.

Thereby, the artificial island of the present invention can be installed anywhere within the range of the planned water depth.

The artificial fish reef 5 and the leg 3 to which the panel 12 is attached play the role of a fish reef at all depths, from the bottom 6 to the water surface 1, so that all living fish, shellfish, and other organisms on the bottom, middle, and surface layers can be protected. , it is possible to expand the vertical habitat area while growing a wide variety of living organisms at optimal water depths. Furthermore, young fish, adult fish, parent fish, etc. that live in the surrounding waters also gather at the artificial reef. Therefore, it is possible to collect a large number of fish and shellfish in a warashi, which is a facility with a limited area of water.

As such, the gathering of many different types of fish and shellfish makes it a popular destination for marine life researchers, underwater photographers, and sports fishing enthusiasts, as well as for the management of aquariums where these fish and shellfish can be admired. It is possible.

〔Effect of the invention〕

As explained above, according to the present invention, many fish and shellfish can be gathered at a specific offshore location, so many people can enjoy fishing.

It can also be used for many other purposes, such as fishing grounds for fishermen. Furthermore, since it is easy to relocate, it has many useful industrial effects, such as being able to reliably locate an emergency spot.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a horizontal sectional view of the leg, Fig. 4 is a horizontal sectional view of the artificial reef, and Fig. 5 (a ) is a front view showing the seawater intake of the float, FIG. 5(b) is a sectional view explaining the internal structure, FIG. 6 is a sectional view showing the air supply mechanism, and FIG. 7(
a) and (b) are explanatory diagrams showing a method of raising and lowering an artificial fish reef. In the drawing, ■...water surface,
2...Platform, 3...Leg,
3a, 3a'...main pillar, 3b...reinforcement material,
4...Float, 5...Artificial reef,
5a, 5a'...main pillar, 5b...reinforcement material,
6... Underwater, 7... Living facilities, 8.
...Jacking unit, 9...Winch, 10.
...Hose, 11...Air supply mechanism, 12...
・Gunnel, 13... Foundation, 14... Opening, 15... Seawater intake, 15a... Access, 17
...Wire, 18...Flexible hose, 19.
・・Helipad, 20・・Helicopter, 21・・Valve,
22...Valve, 23...Seawater.

Claims (1)

[Claims] In an artificial island consisting of a horizontal platform having buoyancy and a plurality of legs vertically penetrating the platform and vertically movable to support the platform from above the water bottom, the artificial island has a lower end portion. An artificial island for fishing, characterized in that a plurality of artificial fish reefs vertically penetrating the platform, to which floats whose buoyancy can be freely controlled are fixed, and which can be raised and lowered freely are attached.