JPH089828A - Submarine fence - Google Patents

Abstract

PURPOSE:To provide a submarine fence satisfactorily durable under the severe environmental conditions of the sea floor and capable of preventing intrusion of a submarine animal such as a sea urchin or an ear shell without fail. CONSTITUTION:An individual unit as a constituent member 7 for constituting this submarine fence is formed by detachably attaching a long base plate 4 on which plural flexible wires 6 are planted so as to be arranged in two lines in the longitudinal direction to a block 1 capable of stably holding the base plate 4 in the sea floor. The plural units of the resultant constituent members 7 are arranged in the sea floor, thus establishing the objective submarine fence capable of preventing intrusion of a submarine animal such as a sea urchin or an ear shell.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submarine fence,
In particular, it relates to a submarine fence capable of preventing the movement of benthic animals such as sea urchins and abalone.

[0002]

2. Description of the Related Art In recent years, the demand for benthic animals such as sea urchins and abalone has been increasing due to the gourmet thinking of the general public. Therefore, in order to secure a predetermined catch, such benthic animals are collected within a certain area on the seabed to protect them from natural enemies or to raise them artificially.

On the contrary, benthic animals such as sea urchin and abalone,
Since useful seaweeds such as kelp are also used as food, in the area of the seabed where harvest of kelp is intended, in order to prevent feeding damage by benthic animals, the surrounding area should be covered with a fence to infiltrate sea urchins and abalone. Have been prevented.

Here, as a fence for preventing the movement of benthic animals such as sea urchins and abalone within a certain area, there is conventionally a fence having a box-like structure made of wood.

[0005]

However, here,
In the sea where benthic animals such as sea urchin and abalone live, there is a tide flow, so in a robust fence made of wood etc. that receives the tide flow properly,
The problem was that if the fence was not formed so sturdy that it could not be used for many years.

[0006] In addition, since the sea urchin is a thorn and a pipe foot, and in the case of abalone, it moves with a sticky force, and easily overcame a vertical wall, the fence made of wood is a barrier to some extent. There was a problem that it could not be expected to be effective, and it was not a fence that could completely prevent the movement of benthic animals such as sea urchins and abalone.

[0007] The present invention has been made in view of the above-mentioned problems existing in the conventional fences, and its purpose is to sufficiently withstand the poor environmental conditions of the seabed, and yet to provide benthic animals such as sea urchins and abalone. The purpose is to provide a submarine fence that can reliably block traffic to and from.

[0008]

In order to achieve the above-mentioned object, the present invention provides a fence in which a plurality of wire rods are planted like a toothbrush. That is, the present invention, by arranging a plurality of long substrates in which a plurality of flexible wire rods are planted along the longitudinal direction, on the seabed, the movement of benthic animals such as sea urchins and abalone, etc. It was decided to form a fence that can be prevented.

Here, it is preferable that the flexible wire material to be implanted in the substrate is implanted along the longitudinal direction of the substrate in a state in which a plurality of wires are bundled. With this structure, it is easy to plant the wire rod on the board, and the upper part of the wire rod that is planted in a bundle is bent left and right and front and back to form a fence with volume. This is because it becomes possible.

As the material of the flexible wire rod, a material which is resistant to corrosion even in seawater and easily elastically deformed should be selected and formed, for example, stainless steel or PC steel. Preferably.

The long substrate on which the plurality of wires are implanted is preferably a flexible substrate, for example, a substrate formed of rubber or the like. This is because even if the seabed has undulations, the substrate can be installed following the undulations, which is advantageous.

Further, it is preferable that the substrate is detachably fixed to the block. This is because even if the wire rod implanted in the board has a defect in a part of the fence due to corrosion or bending under the bad environmental condition of the seabed, only the part of the fence is removed from the block. This is because the maintenance becomes possible.

When the substrate is detachably fixed to the block as described above, it is preferable that the block is a block made of a flexible material such as rubber. This is because if the block that fixes the substrate is a flexible block, even if the seabed has undulations, the block can be installed according to the undulations, and there is no gap with the seabed and it is stable. This is because it is possible to form a fence in a state.

Further, when the substrate is detachably fixed to the block, it is preferable that the block has a sufficient weight. This is because if the block for fixing the substrate has a sufficient weight, it is not necessary to fix the block to the seabed with an anchor or the like, and the fence can be easily formed.

[0015]

According to the above-mentioned submarine fence according to the present invention, sea urchins and abalone are prepared by arranging a plurality of long substrates on which a plurality of flexible wires are planted along the longitudinal direction on the seabed. Since it was decided to form a fence that can prevent the movement of benthic animals such as, the fence becomes a fence that can receive the flow of the tide like, for example, kelp, and can sufficiently withstand the adverse environmental conditions of the seabed. There is an effect of becoming a fence to gain.

When benthic animals such as sea urchins and abalone climbed the seabed fence according to the present invention, the wire material forming the fence bends due to the weight of the benthic benthos, and The weight of the animal causes it to fall toward the side of the fence in the direction of entry, which acts as a fence that can reliably block the movement of benthic animals such as sea urchins and abalone.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The submarine fence according to the present invention described above will be described in detail below with reference to the embodiments shown in the drawings. Here, FIG. 1 is a perspective view showing one component member of the undersea fence according to the present invention, FIG. 2 is a cross-sectional view of the component member shown in FIG. 1, and FIG. 3 is a plan view of the component member shown in FIG. It is a figure. Further, FIG. 4 is a conceptual perspective view showing a state in which an undersea fence is constructed using the constituent members shown in FIG.

In the figure, 1 is a block made of concrete, for example, and 2 is an upper surface 1a of the block 1.
The recess is formed along the longitudinal direction. The bottom surface 2a of the recess 2 has six nuts 3 in the state shown in FIG.
Is buried.

4 is a bolt 5 in the recess 2 of the block 1.
The substrate is fixed by. The substrate 4 is made of steel, for example, and is formed as a long substrate having a plate thickness of 10 mm, a length of 600 mm and a width of 80 mm.

Reference numeral 6 denotes a wire rod which is planted along the longitudinal direction of the long substrate 4, and the wire rod 6 is made of, for example, stainless steel which is not easily corroded by seawater and has a diameter of 0.5 mm.
It has a length of 500-600 mm and is designed to bend easily.

The wire 6 is planted in the substrate 4 in a bundle of about 50 bundles, and the spacing between the bundles is such that benthic animals such as sea urchin and abalone cannot pass through. It is planted in two rows along the longitudinal direction of the substrate 4 at intervals of about 30 mm.

The spacing between the rows of the wire rods 6 planted on the substrate 4 is set to about 18 mm, and the wire rods 6 in one row are positioned at the middle of the wire rods 6 in the other row. , That is, as shown in FIG. 3, the wire 6 is planted on the substrate 4 in a state where two rows are arranged in a zigzag pattern.

As shown in FIG. 4, a plurality of the constituent members 7 of the submarine fence according to the present invention having the above-mentioned structure are arranged in a state of surrounding a certain area on the seabed, and benthic animals such as sea urchins and abalone. A submarine fence will be built to prevent the traffic from coming and going. At this time, it is difficult to move the individual constituent members 7 on the seabed by taking measures such as burying a part of the block 1 of each constituent member 7 in the seabed or connecting adjacent blocks 1 with hooks. It is preferable.

Next, another embodiment of the submarine fence according to the present invention will be described with reference to FIGS. here,
5 is a perspective view showing another component member of the submarine fence according to the present invention, FIG. 6 is a cross-sectional view of the component member shown in FIG. 5, and FIG. 7 is a diagram showing the component member shown in FIG. It is a conceptual side view showing the state where the submarine fence was constructed.

In the figure, 11 is a block made of a flexible material such as rubber, and 12 is a groove formed on the upper surface 11a of the block 11 along its longitudinal direction. This groove 12 is provided with protrusions 13 and 13 facing both sides of the opening and facing inward. Further, holes 14 for fixing the block 11 to the seabed are formed at appropriate places on the block 11.

Reference numeral 15 designates a substrate which is slidably assembled into the groove 12 of the block 11 from the end thereof. The substrate 15
Is formed of a flexible material such as rubber, and is engaged with the protrusions 13 of the groove 12 of the block 11 to prevent the block 11 from being separated.

Reference numeral 16 denotes a wire rod which is planted along the longitudinal direction of the elongated substrate 15. The wire rod 16 is, for example, an epoxy resin wire having a core of PC steel having a diameter of 0.5 mm. It has a length of 300-600 mm and is designed to bend easily.

Also, the wire 16 is planted in the substrate 15 in a state where a plurality of the bundles are bundled in the same manner as in the above embodiment, and the spacing between the bundles is such that the bottoms of sea urchins, abalone and the like. Live animals are planted at intervals that cannot pass through.

The constituent member 17 of the other submarine fence according to the present invention constructed as described above has flexibility in accordance with the undulations even when the seabed is undulated as shown in FIG. The board 15 and the block 11 are bent, and a plurality of pins 18 arranged in a state of surrounding a certain area on the sea bottom without forming a gap between the board 15 and the sea bottom and inserted into the holes 14 of the block 11 are driven into the sea bottom. It will be fixed to the sea floor.

The submarine fence according to the present invention described above constitutes a fence by the plurality of wire rods 6 (or 16) planted on the substrate 4 (or 15), and therefore the fence is For example, it becomes a fence that can receive the flow of tidal current like kelp and can withstand even the poor environmental conditions of the seabed.

When a benthic animal such as a sea urchin or an abalone climbs up on the seabed fence according to the present invention constructed on the seabed, the wire rod 6 (or 1) forming the fence is used.
6) is bent due to the weight of the bent-up benthic animal, and the benthic animal falls to the intrusion direction side of the fence due to its own weight, which can surely prevent the movement of benthic animals such as sea urchins and abalone. Becomes

Furthermore, when the wire 6 (or 16) implanted in the substrate 4 (or 15) is corroded or bent to cause a defect in a part of the fence,
The substrate 4 (or 15) of only that portion is removed from the block 1 (or 11), and its maintenance becomes possible.

The embodiments of the present invention have been described above.
The present invention is not limited to the embodiments described above, and it is needless to say that various modifications and changes can be made based on the technical idea of the present invention.

For example, each member described in the above embodiment, for example, the size of the substrate 4 (or 15) or the wire rod 6
The dimensions (or 16) and the like are merely examples, and can be arbitrarily changed depending on the conditions of the seabed to be used, the kind of benthic animals to be prevented, and the like.

Further, in the above-mentioned embodiment, the substrate 4 (or 15) and the block 1 (or 11) are separately configured and assembled with each other, but the wire 6 (or 16) is implanted. The substrate 4 (or 15) may be directly fixed to the seabed with a pin or the like, and the substrate and the block may be made of a flexible material such as rubber, or steel when the substrate and the block are installed on a flat seabed. It may be integrally formed of a rigid body such as concrete.

[0036]

As described above, according to the submarine fence according to the present invention described above, the submarine fence is capable of sufficiently withstanding the adverse environmental conditions of the seabed and capable of reliably blocking the movement of benthic animals such as sea urchins and abalone. There is an effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing a component member of a submarine fence according to the present invention.

FIG. 2 is a cross-sectional view of a portion of the component shown in FIG. 1 taken along the line AA.

FIG. 3 is a plan view of the constituent member shown in FIG.

FIG. 4 is a conceptual perspective view showing a state in which a submarine fence is constructed using the constituent members shown in FIG.

FIG. 5 is a perspective view showing another component member of the submarine fence according to the present invention.

6 is a cross-sectional view of a portion of the constituent member shown in FIG. 5 along the line BB.

7 is a conceptual side view showing a state in which a submarine fence is constructed using the constituent members shown in FIG.

[Explanation of symbols]

 1 Block 1a Upper surface of block 2 Recessed portion 3 Nut 4 Long board 5 Bolt 6 Wire rod having flexibility 7 One component of submarine fence 11 Block 11a Upper surface of block 12 Groove 13 Projection 14 Hole 15 Board 16 Flexible Wires with wires 17 One component of a submarine fence 18 Pins

Claims (6)

[Claims] 1. A submarine fence, characterized in that a fence is formed by arranging a plurality of long substrates in which a plurality of flexible wires are planted along the longitudinal direction on the seabed. 2. The submarine fence according to claim 1, wherein the flexible wire rods are planted along the longitudinal direction of the substrate in a state where a plurality of the wire rods are bundled. 3. The submarine fence according to claim 1, wherein the long substrate is a flexible substrate. 4. The fence is formed by detachably fixing the long substrate to a block, and arranging a plurality of the blocks on the seabed to form a fence.
Or the undersea fence described in 3. 5. The submarine fence according to claim 4, wherein the block is a flexible block. 6. The submarine fence according to claim 4, wherein the block is a block having a sufficient weight.