JPH0819348A - Device for removing fouling organism in hanging culture - Google Patents

Abstract

PURPOSE:To enable efficient removal of organisms fouling scallop shells in the so-called 'hanging culture'. CONSTITUTION:The frame 22 mountable to the boat edge 10 is equipped with a rotatable frame 23 so that it can rotate around the vertical shaft, further with a guide 50 for the rope hanging down A in front of the frame 23, and the stationary net 41 and the pushing net 42 which can turn back and forth and vertically oppose to each other in the back as well as the cleaner 40 equipped with a jetting nozzle 43 which can turn toward these nets 41 and 42. In the lower part, the frame 22 is equipped with a discharger 60 which can turn toward the inside of the boat, and in the rear of the washer 40, the rotary frame 23 is equipped with a winding drum 32 and a winder 30 having a chute 34 which can turn toward the outside of the boat below the drum 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention adheres to a large amount of shellfish during the growing period of the aquaculture, which is one of the drooping aquaculture methods used for aquaculture of shellfish represented by scallops. A device for removing living organisms.

[0002]

2. Description of the Related Art Usually, net cages are used in the first year of shellfish culture, and ear hanging culture, which is inexpensive in facilities, is often used in the second year and thereafter.

[0003] The method of shell hanging aquaculture varies depending on the region, but examples are as follows. Make a hole in the part called the ear of shellfish, tie these shellfish with texus, and
As a set, a hanging rope of about 15 m is tied at a distance of about 12 cm from the place where it is removed from 1.5 to 2 m from the top to the lower end and hung in the sea. Approximately this hanging rope to the trunk line of 300 to 480 m in the horizontal direction
Tie at 30 cm intervals.

[0004] In the ear-hanging culture of shellfish such as scallops, shellfish that have been stored for more than two years are usually shipped. By this time, organisms such as blue mussels and group oysters have adhered to the surface of shellfish, It grows at the same time as the shellfish. This attached organism is not only harmful to the growing shellfish, but also to the fishermen in terms of the effort to remove the attached organisms at the time of shipment, the limit of land that can be disposed of, and the acceptance and cost of industrial waste. , Has become a big problem.

In order to reduce the adherent organisms, it has been found effective to remove them at the larval stage before they grow. Therefore, as described below, there are provided some aquaculture adherent organism removing devices suitable for ear hanging aquaculture.

As a device for removing aquaculture attached organisms,
There is a net basket device for pearl oysters. This device feeds a net basket to a net-like conveyor and sprays water from the top and bottom of the net basket, which is a large-scale facility originally used on land. There is also an example in which this is downsized and used for ear hanging aquaculture such as scallops on the ship.

An example of an apparatus for removing attached organisms from ear hanging culture during the growing period is described in Japanese Utility Model Publication No. 58-36274. This device pulls up a hanging rope with a hoist mounted on the upper part of a ship's berth, and scrapes attached organisms through a pair of rotating brushes mounted on the lateral side of the ship's shore in the preceding stage.

In Japanese Utility Model Publication No. 1-146851, instead of the brush in Japanese Utility Model Publication No. 58-36274, a pair of guide members and an injection nozzle are provided on a support frame mounted on the outer side of a ship, The hanging rope is pulled up inside, and the attached organisms are dropped and released by the water jet.

[0009]

The above-mentioned conventional device has the following problems.

[0010] can not mechanically possible to perform the raising of hanging rope from the device underwater, once, from capture droop rope on board, must be applied to the apparatus of the present invention, it is troublesome.

Attached organisms are gradually entangled in the device brush, and the scraping effect is halved. The blade of the winder with blades hooks the shell and pulls up the hanging rope, which may cut the gut and the shell may fall into the sea.

[0012]Equipment  It is washed and removed on the outside of the ship's shore, and attached organisms fall directly into the sea
Therefore, it may pollute the sea. When starting work
The support frame is divided in order to insert the hanging rope into the guide material.
It needs to be opened, and there is a difficulty in workability. Guide material
Because the gap that serves as a passage for shellfish is fixed and fixed,
Can not properly respond to the thickness and posture of the.
When the hanging rope is pulled up diagonally by the ocean current
No consideration is given.

[0013] As described above, the conventional apparatus for removing adhered organisms from ear hanging culture is not sufficiently satisfactory in practical use, and therefore, fishermen should immediately develop a highly practical apparatus of this type. The reality is that they are eager for this.

In order to meet such a strong demand of fishermen, the present invention aims to provide an apparatus having a good workability, which is compatible with ear hanging aquaculture.

However, the problems required for this apparatus are as follows. (A) Work can be done on board and is suitable for ear hanging aquaculture. (B) Workability is good and labor is low. (C) Collect the removed miscellaneous organisms on board. (D) Align the shellfish to improve the cleaning and removal efficiency. (E) Do not damage the shellfish.

[0016]

According to the present invention, a mounting frame that can be fixed to a hull, a rotating frame that is mounted on the mounting frame so as to be rotatable about a vertical axis, and a rotating frame. The guide part of the hanging rope attached to the front part of the, and the fixed net and the press net that are attached to the rotating frame behind the guide part and face the front-back direction, and vertically face each other, and the direction of these nets. And a discharge plate that is provided below the cleaning unit and that faces the inside of the hull, and is provided on a rotating frame behind the cleaning unit, and is a winding drum and is located below the winding drum. The above problem can be solved by providing a winding portion formed of a shooter facing the outer side of the hull.

The fixed net and the press net may be generally horizontal.

It is desirable to provide a pressing device capable of pressing the upper surface of the winding drum.

A filter may be provided below the outlet end of the discharge plate.

[0020]

The rotating frame can be rotated around a vertical axis with respect to the mounting frame and oriented in a direction suitable for work.

The deposits on the shellfish are removed by the wash water, poured into the hull together with the wash water, and captured by the filter.

The shellfish are washed by the jet water while being surely pressed and held by the fixed net and the holding net, so that the effect of removing the deposits is great.

[0023]

1 to 6 show an embodiment of the present invention described in claim 1.

The device of the present invention is attached to the upper edge of the boat rim (10) of a fishing boat, and includes a pedestal (20), a hoisting portion (30), and a cleaning section (4).
0), a guide part (50) and a discharge part (60).

The mount (20) is fitted to the upper edge of the ship berth (10),
The horizontal frame (24) at the lower end of the rotary frame (23) is composed of a mounting frame (22) fixed by bolts (21) and a rotary frame (23). It is pivotally attached to the frame (22). An angular frame-shaped machine frame (26) with its upper part tilted forward is provided in the front-rear intermediate portion of the horizontal plate (24) of the rotary frame (23), and a vertical frame is provided at the rear end of the horizontal plate (24). A support frame (27) is erected. A notch is provided on one side surface of the middle part of the machine frame (26) and serves as an introduction port for the hanging rope (A), and from this, the hanging rope (A) is fixed net (41) and presser net (42) described later. ) And so that it can be easily introduced.

The hoisting portion (30) is driven by a motor (31) attached to the upper end of the supporting frame (27), and the outer end of the hoisting drum (32) is inclined slightly upward, and the upper surface of the hoisting drum (32). It consists of a runaway prevention cover (33) that covers important points, and a shooter (34) that is fixed to the support frame (27) with the lower end inclined to the sea side immediately below the rear side of the winding drum (32). .

The washing section (40) is located in the main part of the machine frame (26) and faces the front-rear direction, and the fixed net (41) whose rear end is inclined upward by about 45 ° is located above the fixed net (41). And the front end is a machine frame (26)
The holding net (42) pivotally supported by the holding net (42) whose rear part is biased toward the fixed net (41) by its own weight or elastic means not shown.
(42), and a plurality of pairs of pressure water jet nozzles (43) and (43) arranged below the fixed net (41) and above the holding net (42) so as to face each other. The downward inclination angle of the rear portion of the presser net (42) is regulated by the stopper (44) provided at the front end thereof contacting a part of the machine frame (26).

The guide portion (50) is a portion for guiding the hanging rope (A), and is lower than the hoisting drum (32) pivotally installed at the front end of the horizontal plate (24) of the rotating frame (23). A guide drum (51), an introduction plate (52) that connects the upper surface of the guide drum (51) to the fixed net (41), and both sides of the lower surface of the guide drum (51), and project from the front end of the horizontal plate (24). It consists of auxiliary guides (53) (53) installed.

The discharge part (60) is located below the fixed net (41) in the machine casing (26) and directly below the discharge plate (61) provided toward the inside of the vessel (10). In the above, it is composed of a cylindrical basket-shaped recovery filter (62) fixed to the attachment frame (22). The recovery filter (62) may be in the form of a bag made of cloth or a mesh having a relatively small mesh.

The rotating frame (23) is rotated around the screwed shaft (25) to be parallel to the hull when the hull is moved, and is oriented in a direction suitable for pulling up the hanging rope (A) during work. To be

In order to facilitate transportation, storage, and attachment / detachment to / from the hull, the rotating frame (23) is attached to the mounting frame (2) by the screw shaft (25).
It can be separated from 2).

The hoisting force of the hanging rope (A) by the hoisting drum (32) can be increased as the hoisting drum (32) is positioned higher than the guide drum (51). To enhance the hoisting force, , A pressing device as illustrated in FIGS.
(70) may be provided.

In the holding device (70), the holding roller (71), which is spring-biased and brought into contact with the upper surface of the winding drum (32), is moved upward by the lifting lever (72) to move the winding drum.
It can be separated from (32), and its specific configuration is as follows.

At the inner end of the supporting piece (27a) of the cantilever shaft (73), which is pivotally supported by the supporting piece (27a) connected to the upper end of the support frame (27) and faces in the left-right direction, The block (74) at the outer end of the lifting lever (72) provided with the pressing roller (71) is pivotally supported by the pin shaft (75) facing in the front-rear direction, and the block (74) is located above the pin shaft (75). The roller (76) that abuts on the inner surface of the upper end of the support piece (27a) is pivotally supported by a support shaft (77) in the front-rear direction, and a nut (78) is attached to the outer end of the cantilever shaft (73).
A compression spring (80) is provided between the support seat (27a) and the receiving seat (79) held by.

When the hanging rope (A) is hung on the winding drum (32), the inner end of the lifting lever (72) is lifted by hand to rotate the lifting lever (72) around the pin shaft (75). , Release the pressure roller (71) from the winding drum (32). At this time, the roller (76) rolls along the inner surface of the support piece (27a) to allow the block (74) to rotate.

After wrapping the hanging rope (A), the lifting lever
When you release your hand from (72), the compression spring (80) causes the cantilever shaft (73).
Is pulled outward and the roller (76) is pushed inward by the inner surface of the support piece (27a), so that the block (74) turns downward around the pin shaft (75) together with the lifting lever (72). The pressing roller (71) is pressed against the upper surface of the winding drum (32). This elastic force rotates the nut (78) and causes the compression spring (8
It is adjusted by adjusting the strength of 0).

When using this device, first, remove the knot of the hanging rope (A) from the trunk rope, hold the upper end of the hanging rope (A) by hand, and hang it on the front side of the guide drum (51). After hanging through the introduction plate (52) and the fixed net (41) to the upper side of the winding drum (32), the hanging lower end is tied to the trunk again.

Next, the hanging rope (A) is pulled up by the rear side of the winding drum (32) and dropped into the sea. After pulling it up several times, it depends on the weight of the hanging rope (A) and the shell (B) attached to it, and the driving force of the hoisting drum (32).
(A) is pulled up and thrown in automatically.

During this time, seawater pumped by a pump (not shown) is jetted from the jet nozzle (43),
The front and back of the shellfish (B) attached to the hanging rope (A) are washed.

The shellfish (B) is guided by the introduction plate (52) and fixed mesh
By the (41) and the presser net (42), the flat posture is surely maintained, and it is not largely moved by the pressure of the injected seawater.

By the sprayed seawater, attached organisms on the surface of the shellfish (B) are dropped in the washing section (40), flow along the discharge plate (61), and are trapped in the recovery filter (62). Therefore, shellfish
Seawater is not contaminated by the organisms attached to (B).

FIG. 7 shows another example of the pressing device. The outer end (72a) of the lifting lever (72) is projected from the pressing roller (71), and the outer end of the lifting lever (72) is supported by the pin (75) on the support piece (2).
7a) is pivotally attached to the upper end, and the inner end of the tension spring (81) is near the pressing roller (71), and the lifting lever (72).
The pin (82) provided on the outer end of the
The outer end of (1) is attached to the support piece (27
It is locked to the pin (83) provided in a). In this way,
A downward tilting force is applied to the lifting lever (72).

In the above example, the fixed net (41) and the holding net
(42) was inclined toward the upper rear, but these,
It may be performed almost horizontally.

FIG. 8 shows such an example, and the same members as those in the above example are designated by the same reference numerals.

The closer the fixed net (41) and the holding net (42) are to the horizontal, the less the possibility of the shell (B) falling from the hanging rope (A), and even if it falls, Since it stays on the fixed net (41), its collection is easy.

In the above embodiments, the injection nozzle (43)
Is fixed directly to the fixed frame (23), for example, as shown in FIG. 9, the central portion of the water guide pipe (45) at the center of the upper and lower parts of the machine frame (26) of the fixed frame (23), A swivel joint (46) connected to a pressure water hose (not shown) rotatably pivots the injection nozzle (43) at the end of each water conduit (45) and intersects the plane of rotation of the water conduit (45) at right angles. Provided so as to be slightly inclined in the tangential direction with respect to the axis line, each jet nozzle (43), while injecting pressure water, by the reaction of jetting pressure water jetted from each jet nozzle (43),
You may make it rotate along a circular locus with the water conduit (45). By doing so, the irradiation direction and irradiation position of the cleaning water sprayed on the shellfish are constantly changed, and the cleaning effect can be enhanced.

Further, as shown in FIG. 10, one side of the machine frame (26) of the fixed frame (23) is substantially vertically moved by a motor (47) fixed to the machine frame (26). A pulley that pivotally supports the drive shaft (48) facing the direction and is firmly fitted to the upper and lower parts of the drive shaft (48).
(49a) and swivel joint similar to that shown in FIG.
Pulleys (4) provided integrally with water conduits (45) rotatably mounted at the center of the upper and lower parts of the machine frame (26) of the fixed frame (23)
9b) and belt (49c) (or chain) around,
The upper and lower water conduits (45) may be synchronously rotated by the operation of (47). In this case, the injection nozzle (43)
Can also be provided at the end of each water conduit (45) so as to be orthogonal to the plane of rotation of the water conduit (45).

[0048]

【The invention's effect】

(a) It is possible to efficiently remove organisms attached to the pendulum with a simple operation and a small amount of labor.

(B) Since the removed attached organisms are collected on board, they are prevented from attaching again to the shellfish and do not pollute the sea.

(C) Since the attachment of unnecessary organisms can be prevented at the stage of larvae, the adherent organisms can be prevented from growing and their large amount can be prevented. for that reason,
The labor and costs for the disposal of periphyton are greatly reduced.

(D) The occluded death of the shellfish due to the growth of the attached organisms can be prevented, and the bait which the shellfish originally should eat is less taken by the attached organisms, and the shellfish can be grown large.

(E) Conventionally, in the hanging ear culture, unnecessary organisms adhere to the shellfish, so that the shellfish has to be shipped as a two-year shellfish. Therefore, the shellfish is small and its use is limited. However, according to this device, the adhesion of unwanted organisms can be reduced without weakening the shellfish, and therefore, it is possible to grow it for 3 years or more by washing and removing it several times, and the added value can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of FIG. 2 viewed from the right side.

FIG. 4 is a side view similar to FIG. 3, showing an example in which a holding device is added to the device of FIGS.

FIG. 5 is a vertical sectional side view of the pressing device.

FIG. 6 is a transverse plan view of the same.

FIG. 7 is a side view showing another example of the pressing device.

FIG. 8 is a front view showing another example of the device of the present invention.

FIG. 9 is a perspective view of a main part showing a different example of the support part of the injection nozzle.

FIG. 10 is a perspective view of a main part showing a further different example of the support part of the injection nozzle.

[Explanation of symbols]

(10) Boat edge (20) Stand (21) Bolt (22) Mounting frame (23) Rotating frame (24) Horizontal plate (25) Screw shaft (26) Machine frame (27) Support frame (27a) Support piece ( 30) Winding top (31) Motor (32) Winding drum (33) Runaway prevention cover (34) Shooter (40) Washing section (41) Fixed mesh (42) Holding net (43) Injection nozzle (44) Stopper (45) Water conduit (46) Swivel joint (47) Motor (48) Drive shaft (49a) (49b) Pulley (49c) Belt (50) Guide part (51) Guide drum (52) Inlet plate (53) Auxiliary guide (60) Discharge part (61) Discharge plate (62) Collection filter (70) Holding device (71) Holding roller (72) Lifting lever (73) Cantilever shaft (74) Block (75) Pin shaft (76) Roller (77) Support Shaft (78) Nut (79) Seat (80) Compression spring (81) Tension spring (82) (83) Pin

Front page continuation (72) Inventor Tatsumi Tada, 11-chome, Kita-ku, Kita-ku, Sapporo, Hokkaido 1-11, Kita-ku Industrial Testing Station (72) Inventor Tadashi Nakamura 1-133, Funami-cho, Muroran-shi, Hokkaido 31 Muroran District Fisheries (72) Inventor Shuji Kawasaki 5th floor, 5th Building, Odori Nishi, Chuo-ku, Sapporo-shi, Hokkaido Narasaki Manufacturing Co., Ltd. Sapporo Branch

Claims (7)

[Claims] 1. A mounting frame which can be fixed to a hull, a rotating frame which is mounted on the mounting frame so as to be rotatable about a vertical axis, and a hanging rope which is mounted on a front portion of the rotating frame. And a cleaning unit which is attached to a rotating frame behind the guide unit, faces the front-back direction, and vertically faces each other, a fixed net and a holding net, and a jet nozzle which faces these nets. Consisting of a discharge plate that is located below the cleaning unit and that faces the inside of the hull, a hoisting drum that is provided on the rotating frame behind the cleaning unit, and a shooter that is located below that and that faces the outside of the hull. A device for removing adhered organisms from ear hanging culture, comprising: a winding part. 2. The apparatus for removing adhered organisms from ear hanging culture according to claim 1, wherein the fixed net and the holding net are inclined rearward and upward. 3. The apparatus for removing adhered organisms from ear hanging culture according to claim 1, wherein the fixed net and the holding net are substantially horizontal. 4. The device for removing adhered organisms from ear hanging culture according to claim 1, further comprising a pressing device capable of elastically pressing the upper surface of the winding drum. 5. The apparatus for removing adhered organisms from ear hanging culture according to claim 4, wherein the pressing device includes a pressing roller that is biased downward by a spring, and a lifting lever that projects from the pressing roller. 6. The apparatus for removing adhered organisms from ear hanging culture according to claim 1, wherein a filter is provided below the outlet end of the discharge plate. 7. An injection nozzle is provided at the tip of a water guide tube that is rotatably supported by a rotating frame, and the injection nozzle is adapted to rotate along a circular locus while injecting cleaning water. 7. The apparatus for removing adhered organisms from ear hanging culture according to any one of claims 1 to 6.