JPH0648946B2 - Subsea extermination method and equipment for kelp fishing grounds - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing seabed from a kelp fishing ground or the like and an apparatus for accelerating the growth and growth of kelp.

[0002]

Conventionally, submarine combating such kelp fishing grounds, i.e., removal and exposure of the rocky miscellaneous seaweed supplement from alone is insufficient is performed naturally by sea ice or the like, kelp and various
In order to positively promote the increase in production of seaweeds, the seabed is exterminated artificially by explosives, high-pressure jet water or chain swings.

[0003]

However, these artificial methods are dangerous, and are easily affected by sea conditions such as waves.
There was a problem that it was not suitable for large-scale seabed removal. The applicant has conducted intensive research to solve this problem and completed the present invention.

[0004]

A submarine extermination device for a kelp fishing ground or the like according to the present invention comprises an extermination rope body a formed by connecting a toothed rotary plate 2 made of a steel plate to a rope 1 in a freely rotatable manner. It becomes a unit. The seabed extermination method for kelp fishing grounds and the like of the present invention is characterized in that the above extermination rope body a is repeatedly carried out by lifting or lowering the rope a on the seabed.

In the seabed exterminating device for kelp fishing grounds and the like of the present invention, the exterminating rope body b formed by connecting the steel toothed roller 8 to the rope 7 through the washer 9 so as to freely rotate is connected to the warp and weft. It is the net-like extermination lattice body c formed in the above. The seabed exterminating method for kelp fishing grounds and the like of the present invention is characterized in that the entire exterminating grid body c is repeatedly carried out by lifting or lowering the whole of the exterminating grid body c with respect to a reef on the seabed. In this case, in addition to lifting or lowering the entire extermination grid body c in a state of being hung down and covering the reef G with the operation wire 18 attached to the center thereof, the inward required range is operated up and down. Then it is effective.

In the seabed exterminating device of the present invention, such as a kelp fishing ground, a roller 21 with vertical and horizontal teeth formed by protruding vertical teeth 25 and horizontal teeth 26 is connected to a cord 20 via a washer 22 so as to be freely rotatable. This is a net-like extermination grid body f in which the extermination rope body e formed as described above is formed into a vertical stripe and a weft stripe, and an intersection fitting body 28 having vertical and horizontal through holes 30 and 31 is fitted at the intersection thereof. Submarine extermination method of kelp fisheries or the like of the present invention, the removal grid f, in a state of hanging the hanging frame g a wire 35 of a required length, contents to or down or lifting to reef seabed And In this case, apart from lifting or lowering the entire extermination grid body f in a state of being hung down and covering the reef G with the operation wire 38 attached to the center thereof, the inner required range is raised or lowered. It is effective to operate.

[0007]

[Operation] By repeating the work of lifting or lowering the extermination cord or the extermination grid body against the reef on the seabed, the toothed rotating plate of the extermination cord or the toothed roller or vertical and horizontal teeth of the extermination grid body By rotating the roller, the seaweeds growing on the reef can be removed relatively easily, and the rock surface of the reef can be scratched.

[0008]

1 to 4 show a first embodiment of the present invention. Reference character a is an extermination cord member formed by connecting a large number of toothed rotary plates 2 to a cord member 1 such as a wire, a piano wire or a chain so as to freely freely rotate, and a total weight thereof is, for example, 200 kg. It is a thing. The toothed rotary plate 2 is formed by punching a hard steel thick plate with a press or the like, has tooth portions 3 protruding from the outer periphery at required intervals, and has a through hole 4 in the center thereof.
A large number of beads are connected by fitting the cords to the cord 1.

The extermination device of the present invention of this embodiment has the above-mentioned extermination rope body a as a structural unit. Usually, a plurality of the ropes are arranged in parallel, and the winding portions 5 at both ends of each rope 1 are mounted on the ship. The required extermination work is carried out by repeatedly hanging up and down the whole of the work by hanging it on the hook of the hanging wire 6 of the winichi (not shown) installed and installed in the.

As a result, the operation of each exterminating striae a along the undulations of the reef G on the seabed to make a curved collision from the top to the hem and to separate it from the hem to the top,
Repeatedly, at that time, the toothed rotary plate 2 which is connected in a row is rotated by contact with the reef G, the tooth portion 3 scrapes off the seaweeds growing there, and scratches the rock surface. Make it a rough surface.

That is, in the exterminating device of the present invention of this embodiment, the exterminating striations a can be easily manufactured by connecting the toothed rotary plates 2 to the striations 1, and the required number of them is repeated with the winch toward the seabed. By dropping it, the desired seabed extermination can be carried out easily and reliably.

5 to 11 show a second embodiment of the present invention. Reference numeral b is an extermination rope body formed by connecting a large number of toothed rollers 8 to a rope 7 such as a wire, a piano wire or a chain so as to freely rotate through a washer 9, and c is an extermination rope. Space 10 of required size by converting strip b into warp and weft
It is a square and net-shaped extermination grid body formed by opening.

The toothed roller 8 has tooth portions 12 projecting from the outer circumference of a steel horizontal body 11 at required intervals and has a through hole 13 in the center, and the through hole 13 is fitted to the cord 7. By doing so, many beads are connected. The washer 9 is fitted to the cord 7 between the toothed rollers 8 in order to smoothly rotate the toothed roller 8 and also to rotate itself.
In addition to a simple steel disk having a through hole in the center, for example, if a disk having the same shape as the toothed rotary plate 2 of the first embodiment is adopted,
The seaweed itself can be removed.

Reference numeral 14 is a clip for tightly connecting the intersections of the warp and weft exterminating filaments b, and 15 is a winding portion provided at both ends of the warp and weft exterminating filaments b.

In the extermination device of the present invention of this embodiment, as shown in FIG. 10, the auxiliary wires 17 connected to the four corners of the extermination grid body c are suspended on a winch (not shown) mounted on the ship. The work of hanging the wire 16 on the hook and lifting or lowering the whole underwater is repeated.

As a result, the exterminating filaments a forming the exterminating lattice c are curved and abutted from the top to the hem along the undulations of the reef G on the seabed, and from the hem to the top. The operation of separating from is repeatedly performed, and at that time, the toothed roller 8 which is connected in a row is rotated by the contact with the reef G, and the tooth portion 12 scrapes off the seaweed growing there, and The rock surface is scratched and roughened.

In this case, the reef G is hung down
Except for lifting or lowering the whole of the extermination grid body c in the state of being covered with the operation wire 18 attached to the center thereof, it is possible to finely adjust the inner necessary range up and down. Can be exterminated.

FIG. 12 shows a modification of the second embodiment, in which a rectangular extermination grid body c'having the same structure as the extermination grid body c is
Similarly, it is hung by a wire 19 having a required length on a rectangular steel suspension frame body d, and the suspension frame body d is hung on a hook of a suspension wire mounted on a ship (not shown). It is designed to be lifted or lowered in water.

The above-mentioned extermination work is carried out by clearly indicating the work area with an appropriate buoy and sequentially moving the work area. Further, by the preliminary survey, the difference in water depth of the work area and the height of the reef is confirmed. Knowing that, the size of the space 10 corresponding to the mesh of the extermination grids c, c'is adjusted and set, or the height of raising and lowering these extermination grids c, c'is determined. Based on the operator's judgment, strike from the side and make a sudden drop.

Usually, the state in which the extermination grids c, c ′ reach and cover the reef is marked on a hanging wire, etc., and when the above-mentioned extermination work is performed a required number of times, the actual extermination condition of the reef is confirmed by a diver. Confirm the survey, and then determine the height and number of times to raise and lower.

12 to 20 show a third embodiment of the present invention. e is a cord 20 such as a wire, a piano wire, or a chain.
Is an extermination rope body formed by connecting a large number of vertical and horizontal toothed rollers 21 via a washer 22 in a freely rotatable manner, and f is an extermination rope body e of which has a required size as a warp and weft. It is a rectangular net-like extermination grid body formed by opening the voids 23.

The vertical / horizontal toothed roller 21 has vertical tooth portions 25 projecting from the outer circumference of a steel horizontal body 24 at required intervals, and lateral tooth portions 26 projecting between the vertical tooth portions 25. Then
Moreover, it has a through hole 27 at the center,
By mating with 0, a large number of beads are connected. The washer 22 is fitted to the cord 20 between the vertical and horizontal toothed rollers 21 for the purpose of smoothly rotating the vertical and horizontal toothed rollers 21 and also for rotating itself, and is transparent to the center. In addition to a simple steel disk having holes, for example, when a disk having the same shape as the toothed rotary plate 2 of the first embodiment is adopted, the seaweed can be excised by itself.

Reference numeral 28 denotes an intersection fitting body fitted at each intersection of the warp and weft extermination filaments e. This intersection fitting body 28 has through holes 30 and 31 provided in a steel rectangular body 29 vertically and horizontally. , A vertical tooth portion 32 and a horizontal tooth portion 33 on the lower surface, and the through hole 3
0 and 31 are fitted to the vertical and horizontal cords 20. 34 is a winding part provided at both ends of the cord 20.

The extermination device of the present invention of this embodiment is shown in FIG.
As shown in FIG. 20, the winding part 3 around the extermination grid body f.
A hanging wire 36 of a winch (not shown) in which a hanging wire g having a rectangular shape is hung on a steel-made hanging frame g, and the hanging frame g is mounted and installed on the ship. The auxiliary wire 37 is hung on the hook to hang or lower the whole in water.

As a result, the extermination filaments e forming the extermination lattice body f make a curved collision from the top to the hem along the undulations of the reef G on the seabed, and from the hem to the top. The operation of separating from is repeatedly performed, and at that time, the longitudinally and laterally toothed roller 21 connected in a string is rotated by contact with the reef G, and the longitudinally toothed portion 25 and the laterally toothed portion 26 are overgrown there. The seaweed is effectively scraped off, and the rock surface is scratched and roughened.

In this case, the reef G is hung down
When the extermination grid body f in the state of being covered with the operation wire 38 attached to the center of the extermination grid body f is lifted or lowered as a whole in addition to the above-mentioned operation, the inside required range is vertically operated. It can be finely eradicated.

Further, the vertical tooth portion 32 on the lower surface of the intersection fitting body 28.
The lateral teeth portion 33 also effectively scrapes off seaweed and contributes to scratching the rock surface. Moreover, the intersection fitting body 28 only fits the through-holes 30 and 31 to the vertical and horizontal extermination filaments e, and the vertical and horizontal extermination filaments e can move in the intersection fitting body 28. Therefore, the rotation of the vertical and horizontal toothed roller 21 is hindered,
There is no such thing as being extremely hindered from curving the exterminating filaments e along the surface of the reef.

[0028]

As is apparent from the above description,
The present invention has the following effects.

By repeating the operation of hoisting or removing the extermination rope or the extermination grid body against the reef on the seabed, the toothed rotary plate of the extermination rope body, or the toothed roller or vertical and horizontal teeth of the extermination grid body By rotating the roller, it is possible to relatively easily remove miscellaneous seaweeds that are growing on the reef, and to scratch the rock surface of the reef, which enables the growth and growth of various seaweeds such as kelp. a revolutionary submarine extermination method of kelp fishery such that in order to promote accelerated and as a device.

That is, it is not dangerous as in the case of conventional explosives, high-pressure jet water, chain swings, etc., and is not greatly affected by sea conditions such as waves, and is suitable for exterminating a large-scale seabed. Is.

[Brief description of drawings]

FIG. 1 is a side view of a first embodiment of the present invention.

FIG. 2 is a front view of the above toothed rotary plate.

FIG. 3 is a sectional view of the above toothed rotary plate.

FIG. 4 is an explanatory diagram of a usage state of the first embodiment.

FIG. 5 is a plan view of a second embodiment of the present invention.

FIG. 6 is an enlarged plan view of the main part of the above.

FIG. 7 is an enlarged cross-sectional view of a main part of the above.

FIG. 8 is a front view of the above toothed roller.

FIG. 9 is a side view of the above toothed roller.

FIG. 10 is a sectional view of the above toothed roller.

FIG. 11 is an explanatory diagram of a usage state of the second embodiment.

FIG. 12 is a perspective view of a modified example of the second embodiment.

FIG. 13 is a plan view of an essential part of the third embodiment.

FIG. 14 is a front view of the vertical and horizontal toothed roller of the above.

FIG. 15 is a side view of the vertical and horizontal toothed roller of the same.

FIG. 16 is a plan view of the intersection fitting body of the above.

FIG. 17 is a side view of the intersection fitting body of the above.

FIG. 18 is a cross-sectional view of the intersection fitting body of the above.

FIG. 19 is an explanatory diagram of a usage state of the third embodiment.

FIG. 20 is an explanatory diagram of the same usage state as the above.

[Explanation of symbols]

 a extermination striation body b extermination striation body c extermination grid body c ′ extermination lattice body d suspension frame body e extermination striation body f extermination lattice body g suspension frame body G rock reef 1 rope 2 toothed rotating plate 3 tooth 4 Through hole 5 Winding part 6 Hanging wire 7 String 8 Toothed roller 9 Washer 10 Void 11 Horizontal body 12 Tooth part 13 Through hole 14 Clip 15 Winding part 16 Hanging wire 17 Auxiliary wire 18 Operation wire 19 Wire 20 String 21 Roller with vertical and horizontal teeth 22 Washer 23 Empty body 24 Horizontal body 25 Vertical tooth portion 26 Horizontal tooth portion 27 Through hole 28 Intersection fitting body 29 Square body 30 Through hole 31 Through hole 32 Vertical tooth portion 33 Horizontal tooth portion 34 Winding portion 35 Wire 36 Hanging wire 37 Auxiliary wire 38 Operation wire

Claims (8)

[Claims] 1. A submarine extermination device for a kelp fishing ground or the like , which comprises as a constituent unit an extermination cord body formed by connecting a steel plate toothed rotary plate to a cord in a freely rotatable manner. 2. An exterminating rope body formed by connecting a steel plate-made toothed rotary plate to a rope in a freely rotatable manner, and repeating the work of hoisting and lowering the rope to the reef on the seabed. submarine extermination method of kelp fishing grounds, and the like. 3. A net-like extermination grid body formed by forming warp lines and weft lines as extermination line members formed by connecting steel toothed rollers to the cords through a washer in a freely rotatable manner. submarine control devices of kelp fishing grounds such as to. 4. A net-like extermination grid body formed by forming a warp line and a weft line, which is formed by connecting a steel toothed roller to a cord through a washer so as to freely rotatably connect beads to each other. submarine extermination method of kelp fishing grounds, etc., characterized by repeatedly performing the work or down or lifting to the reef. 5. An operation wire attached to the center of an extermination grid body in a state of being suspended and covering a reef, in addition to lifting or lowering the entire body, up and down operation of a required inner area thereof. The method for removing seabed from a kelp fishing ground or the like according to claim 4, wherein 6. An extermination filamentary body formed by connecting longitudinally and laterally toothed rollers formed by projecting longitudinal tooth portions and lateral tooth portions to a cord so as to freely rotate through a washer into a vertical striation and a weft striation. At the same time, a seabed extermination device for a kelp fishing ground or the like , which is a net-like extermination grid body in which an intersection fitting body having vertical and horizontal through holes is fitted at the intersections. 7. An extermination cord body formed by vertically and laterally toothed rollers formed by protruding longitudinal tooth portions and lateral tooth portions so as to freely rotatably connect to a cord rope through a washer to form a vertical stripe and a weft stripe. At the same time, a mesh-like extermination grid made by fitting an intersection fitting having vertical and horizontal through-holes at the intersection is hung with a wire of a required length on a hanging frame, and is lifted against a reef on the seabed. submarine extermination method of kelp fishing grounds, etc., characterized by repeatedly performing the work or down. 8. An extinguishing grid body hung by a wire of a required length on a hanging frame body is hung and covered with a reef, and an operation wire attached to the center thereof is used to hoist or unload the whole. In addition to the above, the inner bottom required range is vertically moved up and down, and the seabed exterminating method for kelp fishing grounds, etc. according to claim 7.