JP2002000038A - Working boat for cultivation of laver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working boat 1 for cultivation of laver having a lowered overall height and shortened overall length while setting the boat to carry out a proper activation treatment of a laver net. SOLUTION: This boat is installed with a tank 28 for activation in a state inclining to rise toward the end along a guide 3 for a laver net at a part inclining to rise toward the end of the guide 3 for a laver net. The tank has a structure flowing down a liquid for the activation treatment from an end of the tank 28 to the front end. A harvester 25 is installed on a front position neighboring to the tank 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seaweed cultivation work ship that guides a seaweed net on a ship from a bow side and performs seaweed cutting and seaweed net activation processing.

[0002]

2. Description of the Related Art A conventional seaweed cultivation work ship is disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 8-18738. In the seaweed cultivation work boat disclosed in this publication, a seaweed net guide for guiding the seaweed net on the ship is provided at the upper part of the hull, and the seaweed is cut under the seaweed net and the seaweed net is activated. And to do.

[0003] The laver net guide extends from the front end of the hull to the center in the front-rear direction so as to rise rearward, and extends substantially horizontally from the center to the rear end of the hull. Is tilted backward and the laver net is returned to the sea. A mowing machine for cutting seaweed is provided at the front end of the laver net guide, and an activation processing tank for performing an activation process is provided at a portion extending from the center in the front-rear direction to the rear end.

The activation treatment tank has a structure in which a laver net is immersed in a treatment section in which an activation treatment solution is stored, and is disposed above a bridge located at the rear of the hull. The processing unit is formed by a relatively deep main processing unit disposed so as to be substantially horizontal at two places on the front and rear sides of the bridge, and a sub-processing unit connecting the two main processing units above the bridge. are doing.

That is, when the laver net passes above the bridge, it is immersed in the processing section of the activation processing tank, so that the activation processing liquid permeates the laver net. In addition, the above-mentioned seaweed cultivation work ship is provided with a seaweed tank for storing seaweed cut by a reaper and a processing liquid tank for storing an activation processing liquid to be supplied to the activation processing tank, which are arranged side by side in the longitudinal direction in the hull. ing.

[0006]

The conventional seaweed cultivation work boat constructed as described above has a problem that the height (total height) of the whole ship is increased. This is because the activation treatment tank is disposed above the bridge. In order to reduce the overall height, the activation treatment tank may be formed so as to be shallow. However, if this structure is adopted, the activation treatment liquid will spill out of the activation treatment tank when the hull shakes due to waves or the like. This makes it difficult to immerse the laver net in the activation treatment liquid.

In order for the activation treatment to be performed properly while the activation treatment tank is formed shallowly, the activation treatment tank is moved back and forth so that the time required for the laver net to be immersed in the activation treatment liquid becomes longer. Must be formed longer. That is, if the activation treatment tank is formed shallow to reduce the overall height, the entire length of the hull will be long.

On the other hand, by arranging the activation treatment tank in front of the bridge so as to be lower than the bridge, the overall height of the hull can be reduced. However, in order to configure in this way, it is necessary to ensure that the field of view in front of the bridge is not obstructed by the activation treatment tank, and that the laver net is pulled up from a low position on the bridge. In addition, it is necessary to prevent the laver from being cut off from the laver net during the activation process.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and it is intended to reduce the overall height of a seaweed cultivation work ship and reduce the total length thereof while appropriately activating the laver net. The first object is to shorten the time. A second object of the present invention is to provide an activation treatment tank at a low position in front of the bridge so that the overall height is reduced, while securing a view in front and preventing seaweed from being cut. I do.

[0010]

In order to attain this object, a seaweed cultivation work boat according to the present invention comprises the above-described activation treatment tank along a part of the seaweed net guide which is inclined upward and rearward. The activation treatment tank is provided so as to be inclined upward and backward, and the activation treatment liquid flows down from the rear part to the front end part of the activation treatment tank, and is located in front of the activation treatment tank and adjacent to the front end part of the activation treatment tank. A reaper is arranged at the position.

[0011] According to the present invention, since the activation treatment liquid flows against the laver net moving on the activation treatment tank, the activation treatment liquid easily permeates the laver net. For this reason, it is possible to shorten the entire length of the activation treatment tank while appropriately performing the activation treatment. In addition, compared to a structure in which the activation treatment tank is provided horizontally, the length of the installation space in the front-rear direction can be reduced by the amount of the inclination.

In the laver cultivation work ship according to the second aspect of the present invention, in the laver cultivation work ship according to the first aspect, a storage tank is provided below the activation treatment tank, and the activation tank is activated. The treatment liquid and the cut seaweed are selectively stored. According to the present invention, the storage tank is used as the tank for the activation treatment liquid during the activation treatment, and the storage tank can be used as the storage tank for the nori during the cutting of the laver. The size of the hull can be reduced as compared with a structure in which the laver storage tank is formed separately and provided on the hull.

[0013] The laver cultivation work boat according to the third aspect of the present invention is provided with a steering seat and a window for visually recognizing the front at the rear end of the hull, and is provided in front of the steering seat and below the window. An activation treatment tank is disposed, and the mowing machine is disposed at a position in front of the activation treatment tank and adjacent to a front end of the activation treatment tank. From the vicinity of the rear end of the steering wheel.

According to the present invention, since the activation processing tank is located below the window for visual recognition in front, the line of sight of the occupant in the steering wheel seat is not blocked by the activation processing tank. In addition, the laver net that has passed through the activation treatment tank is smoothly guided above the steering seat along the rear part of the guide member that is inclined upward.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a seaweed cultivation work ship according to the present invention will be described below in detail with reference to FIGS. FIG. 1 is a side view of a laver cultivation work ship according to the present invention, FIG. 2 is a plan view of the same, and FIG.
FIG. 4 is a cross-sectional view showing a front end portion of the activation processing tank and a reaper, FIG. 5 is an enlarged cross-sectional view showing an activation processing liquid supply unit of the activation processing tank, and FIG. FIG. 7 is a cross-sectional view showing a rear end portion of the activation processing tank and a steering seat, and FIG. 7 is a perspective view showing a part of the activation processing tank and a laver net guide.

In these figures, the reference numeral 1 denotes a laver cultivation work boat according to this embodiment. The laver farming work boat 1 enters the laver net under the laver net (not shown) such that the laver net guide 3 provided on the upper part of the hull 2 is sunk under the laver net (not shown), and the laver net is activated. And seaweed reaping. The activation treatment is performed for the purpose of removing bacteria from the laver net and providing nutrients, and is performed by immersing the laver net in an activation treatment solution, as is well known in the art.

The seaweed cultivation work boat 1 is designed to be used as a dedicated reaping vessel when reaping and to be used as a dedicated activating vessel when performing activation processing. In maneuvering of the laver farming work boat 1, an occupant sits on a steering seat 4 provided at the rear end of the hull 2 and steers a steering handle 5 (see FIG. 6) provided in front of the steering seat 4. , By operating a thrust adjusting lever (not shown). The operating elements such as the steering handle 5 and the lever are provided on an operation panel indicated by reference numeral 6 in FIG. Above the operation panel 6, there is provided a window 7 for an occupant sitting in the steering seat 4 to visually recognize the front.

The hull 2 is, as shown in FIG.
1, a deck 12, and a partition 13 provided between the two.
(See FIG. 1). In the hull 2, a storage tank 14 for storing the cut seaweed and the activation treatment liquid is integrally formed at the center in the front-rear direction.
The storage tank 14 is formed in a box shape that opens upward. Further, as shown in FIG. 1, the hull 2 has a luggage storage room 15 formed in front of the storage tank 14 and an auxiliary machinery room 16 formed rearward.

The luggage storage room 15 is designed so that luggage can be taken in and out by opening and closing a hatch 17 provided on the deck 12. The accessory room 16 is provided with an accessory diesel engine 18, a hydraulic pump 19 (see FIG. 2) driven by the engine 18, and an activation processing liquid pump 20. The auxiliary equipment room 16 has a deck 1
By opening and closing the hatch 21 provided in the engine 2, maintenance of the engine 18 and the pumps 19 and 20 can be performed. Engine 18
The fuel tank 22 is accommodated in the hull 2 behind the accessory room 16 as shown in FIG. Reference numeral 23 provided adjacent to the fuel tank 22 denotes a fuel tank of an outboard motor 24 described later.

The hydraulic pump 19 includes a reaper 25 provided on the deck 12 at the front end of the hull 2 and a hull 1.
1 for supplying hydraulic pressure to a front thruster 26 provided on the front bottom and a rear thruster 27 provided behind the hull 2. The activation processing liquid pump 20 is for supplying the activation processing liquid stored in the storage tank 14 to an activation processing tank 28 described below. The input shafts of these pumps 19 and 20 are connected to the crankshaft of the engine 18 via a belt type transmission and an electromagnetic clutch.

The reaper 25 has a structure in which a cutter shaft 25a (see FIG. 4) is rotated by a hydraulic motor (not shown), and seaweed is cut from a laver net by a cutter (not shown) provided on the cutter shaft 25a. I am taking it. In this embodiment, the reaper 25 is mounted on the deck 12.
Are mounted on both sides in the width direction of the boat via an elevating mechanism 29, and by operating an operation lever 29a of the elevating mechanism 29, the entire reaper 25 is moved up and down.

By swinging the operation lever 29a upward from the position shown in FIG. 4, the reaper 25 moves from the position shown in FIG. 4 to the position shown by the two-dot chain line. FIG.
The activation process is performed with the mower 25 lowered as shown in FIG. 3, and the mowing is performed with the mower 25 moved upward as shown by the two-dot chain line. In FIG. 4, a cover 30 provided above the mower 25 is a cover for preventing the laver net from coming into contact with the mower 25 during the activation process. The cover 30 can be moved in parallel between a position shown in FIG. 4 and a front position where the reaper 25 is exposed, along a slide rod 31 provided on the deck 12 so as to extend in the front-rear direction. I have.

As shown in FIG. 4, the deck 12 located below the mower 25 is formed so as to extend obliquely upward and forward from the front wall 14a of the storage tank 14. The cut seaweed flows down to the storage tank 14 along the inclined portion. Also, a drainer 32 is provided in the middle of the inclined portion,
A structure is employed in which the seawater attached to the laver is discharged from the drain plate 32 to a drain passage 33 below.

The draining plate 32 has a structure in which a number of narrow slits 32a for passing seawater are formed, and when seaweed flows down along the upper surface, the seawater is dropped downward. The drain passage 33 is formed so as to guide the seawater discharged downward from the drain plate 32 onto the deck 12. The seawater discharged onto the deck 12 is discharged outboard by a drainage device (not shown). By providing the draining plate 32 as described above, the amount of seawater flowing into the storage tank 14 together with the seaweed can be reduced, so that even the small storage tank 14 can store a large amount of seaweed at one time.

The front thruster 26 and the rear thruster 27 have a structure in which a hydraulic motor (not shown) for driving a propeller is rotated by hydraulic pressure, as is well known in the art. At the rear end of the hull 2
The outboard motor 24 is mounted on a through a box-shaped stern bracket 34 fixed by a fixing bolt (not shown). The rear thruster 27 is provided at the lower end of the stern bracket 34. The outboard motor 24 is used not only when the seaweed aquaculture work boat 1 is normally sailed, but also for generating thrust in the front-rear direction when performing mowing or activation processing. The thrust in the left-right direction during the mowing or activation process is generated by the front and rear thrusters 26 and 27.

The laver net guide 3 provided on the upper part of the hull 2 comprises a main guide 41 fixed to the hull 2 and a front guide 42 provided on the front part of the hull 2 so as to be movable in the front-rear direction. ing. The main guide 41 includes two main pipes 43 formed at both ends of the hull 2 in the left-right direction so as to extend in the front-rear direction, a plurality of support pipes 44 supporting the main pipes 43, and a left-right support pipe. 44 are formed by a cross pipe 45 (see, for example, FIG. 6) connecting the two.

The main pipe 43 is formed by inclining in a straight line from the front end to the rear end of the hull 2 and rising upward. It is fixed to. The laver net moves from the front part to the rear part along the main pipe 43. The front guide 42 is formed so that its width becomes gradually narrower toward the front, and its rear end is slidably supported by a guide rod 46 (see FIGS. 1 and 3) on the hull side. .

The front guide 42 is lifted up on the ship as shown in FIGS. 1 and 2 when the activation process and the mowing are not performed, and is protruded forward of the hull 2 when performing the work. Submerge the tip underwater. By moving toward the laver net in this state, the laver net is pulled up on the front guide 42 and the front guide 42
From the main guide 41. By moving the hull 2 further, the entire ship will sink under the laver net. In this way, while passing below the laver net, the activation process of the laver net and the cutting of the laver are performed.

The activation treatment tank 28 used for the activation treatment
Is formed in a shallow dish shape having a rectangular planar shape by fiber reinforced plastic, and is inclined upward and backward by being supported by the main guide 41 extending upward and upward as described above. As shown in FIG. 1, the position at which the activation processing tank 28 is mounted is set at a substantially central portion in the front-rear direction of the main guide 41 and slightly forward. More specifically, the activation treatment tank 28 is provided in front of the steering seat 4 and in the window 7.
It is located further below and above the storage tank 14, and is arranged such that its front end is adjacent to the reaper 25. In addition, this activation treatment tank 2
As shown in FIG. 2, the width of 8 is set so that the activation tank 28 extends over substantially the entire space formed between the two main pipes 43 of the main guide 41.

Upper end (rear end) of the activation tank 28
And a nozzle 51 for supplying the activation treatment liquid into the tank is formed at two positions slightly behind the center in the front-rear direction, and the lower end (front end) of the activation treatment tank 28 is formed. A drain duct 52 for returning the activation treatment liquid to the storage tank 14 below is formed. In the present embodiment, the nozzles 51 are formed in a slit shape elongated in the left-right direction, and a large number of the nozzles 51 are arranged at intervals so as to be arranged in a line over substantially the entire area in the width direction of the activation processing tank 28. Also, as shown in FIG. 5, the portion of the activation treatment tank 28 where the nozzle 51 is formed is such that the activation treatment liquid flowing out of the nozzle 51 is directly applied to the laver net, so that the bottom surface 28a of the activation treatment tank 28
It protrudes upward.

Below the nozzle 51, that is, behind the activation processing tank 28, as shown in FIG.
A processing liquid passage 53 for supplying the activation processing liquid to the first processing liquid is formed. The processing liquid passage 53 is formed by a passage forming member 54 having a U-shaped cross section that opens upward.
8 is integrally formed on the back surface. As shown in FIG. 2, the passage forming member 54 includes a laterally extending portion 54 for each nozzle row extending in the width direction of the activation processing tank 28 below the nozzle row including a large number of nozzles 51.
a, 54b, and a total of six radially extending portions 54c extending substantially radially about an intermediate point between the laterally extending portions 54a, 54b. A processing liquid supply pipe 55 is provided at the center of these radially extending portions 54c.
The discharge port of the activation processing liquid pump 20 is connected to the outlet of the activation processing liquid pump (see FIGS. 1 and 5).

That is, the activation processing liquid is pressure-fed from the activation processing liquid pump 20 to the central portion of the passage forming member 54 via the processing liquid supply pipe 55, from which the radially extending portion 54c It is distributed and flows into the laterally extending portions 54a and 54b near the nozzle 51, and flows out through the nozzle 51 onto the activation tank 28. In this embodiment, the supply pressure of the activation treatment liquid is set such that the activation treatment liquid flowing out through the nozzle 51 jumps upward from the upper end opening of the nozzle 51.

As shown in FIGS. 2 and 4, the drain duct 52 formed at the front end of the activation treatment tank 28 is formed in a rectangular tube shape extending over the entire width of the activation treatment tank 28 in the width direction. The laver guide plate 56 is attached to the lower end. The drain duct 52 is provided with the mowing machine 25.
Is located above a sloped portion of the deck 12 formed below.

The guide plate 56 for laver is used for separating the laver from the laver which has been cut off from the laver net on the activation tank 28 during the activation process and which has flowed down from the drain duct 52 together with the activation solution. The drainage duct 52 is formed so as to extend over the entire area in the width direction of the activation treatment tank 28 in the same manner as the drainage duct 52, and is formed so as to extend rearward and downward from the lower end of the drainage duct 52. Is provided. The draining plate 57 has the same structure as the draining plate 32 provided below the mower 25.

A pipe 58 extending in the boat width direction is connected to a lower end (rear end) of the laver guide plate 56. This pipe 58 has an opening 58 formed in the outer peripheral portion.
The lower end of the seaweed guide plate 56 is inserted into a, and both ends are opened outside the storage tank 14 and above the deck 12. That is, the activated treatment liquid that has flowed down from the drain duct 52 passes through the draining plate 57, flows down to the lower inclined portion of the deck 12, flows along the inclined portion, and flows into the storage tank 14. The laver that has fallen from the drain duct 52 onto the laver guide plate 56 flows down along the laver guide plate 56, flows into the pipe 58, and is discharged onto the deck 12 through the pipe 58. . Therefore, during the activation process, the activation treatment tank 28
Even if the growing seaweed is cut when the seaweed net passes over the seaweed, the seaweed can be prevented from flowing into the storage tank 14 together with the activation treatment liquid.

As shown in FIGS. 6 and 7, a partition plate 61 extending rearward to the vicinity of the window 7 is integrally formed at the upper end of the activation tank 28. This partition plate 61
A substantially horizontal horizontal extending portion 61a facing the laver net moving along the main guide 41 of the laver net guide 3, and an upper extending portion 61b extending upward from both sides of the horizontal extending portion 61a.
Thus, the section is formed in an upward U-shape. A window frame 7a of the window 7 is formed integrally with a rear end of the horizontal extending portion 61a. The upper end of the window frame 7a is connected to a roof plate 62 that covers above the steering seat 4.

As shown in FIG. 2, the roof plate 62 extends to the rear of the steering seat 4 along the main pipe 43 of the laver net guide 3, and is provided with a window 63 for rear viewing. The front end portion 62a of the shingle 62 is shown in FIGS.
, The main pipe 4 is moved forward from the window frame 7a.
3 and an auxiliary guide 64 is connected. The auxiliary guide 64 includes three main pipes 64a that incline rearward and upward in parallel with the main pipe 43, and a cross pipe 64b that is connected to front ends and rear ends of the main pipes 64a and that extends in the boat width direction. And both ends of the cross pipe 64b are supported by the main pipe 43 of the laver net guide 3. By providing the auxiliary guide 64 in this manner, the laver net that has passed over the activation tank 28 can be supported by the auxiliary guide 64, so that the laver net that has moved to near the upper part of the window 7 is located immediately before the window 7. It can be prevented from hanging down.

In the seaweed cultivation work boat 1 constructed as described above, the front guide 42 of the seaweed net guide 3 is advanced toward the seaweed net while protruding forward, and the seaweed net is activated. And harvest the nori. In the activation treatment, the activation treatment liquid is stored in the storage tank 14 and the activation treatment liquid is pumped by the activation treatment liquid pump 20 into the activation treatment tank 28.
Perform while supplying to. At this time, the reaper 25 is covered with the cover 30 so that the growing seaweed does not come into contact with the reaper 25 and be cut off.

When the activation treatment liquid is supplied to the activation treatment tank 28 as described above, the activation treatment liquid blows out from the nozzle 51 and spreads over substantially the entire area of the upper surface of the activation treatment tank 28. It flows down to the front end. Then, the activation treatment liquid flows downward from the drainage duct 52 and returns to the storage tank 14 through the draining plate 57. The activation treatment liquid returned to the storage tank 14 is again pumped to the activation treatment tank 28 by the activation treatment liquid pump 20, and is circulated between the activation treatment tank 28 and the storage tank 14.

When the hull 2 advances toward the laver net, the laver net is pulled up by the laver net guide 3, and the hull 2 comes under the laver net. Then, when the laver net passes over the activation processing tank 28, the laver net comes to be immersed in the activation treatment liquid flowing on the activation processing tank 28. At this time, since the activation treatment liquid is flowing against the laver net moving on the activation treatment tank 28,
The activation treatment liquid easily permeates the laver net.

If the laver is cut off when the laver net passes over the activation treatment tank 28, the laver is passed through the drainage duct 52 together with the activation treatment liquid to the lower laver guide plate 56. After dropping and being separated from the activation treatment liquid by the draining plate 57,
Is discharged on top. The laver net that has passed through the activation treatment tank 28 is divided into a main guide 41 and an auxiliary guide 64 of the laver net guide 3.
The guide 3 is guided above the steering seat 4 while being supported by the guide, and further returned to the sea from the rear end of the laver net guide 3.

On the other hand, when cutting the seaweed, the inside of the storage tank 14 is emptied, the cover 30 covering the reaper 25 is moved forward and removed, and the reaper 25 is moved up and down by the lifting mechanism 2.
9 to move it upward to expose it on the laver net guide 3. By pulling up the laver net on the laver net guide 3 while the mower 25 is operated, the laver can be cut. The seaweed cut by the reaper 25 is subjected to seawater dropping by the draining plate 32 below the reaper 25, flows down along the inclined surface of the deck 12, and flows into the storage tank 14.

Therefore, according to the laver cultivation work boat 1 configured as described above, the activation treatment liquid flows against the laver net moving on the activation treatment tank 28,
The activation treatment liquid easily permeates the laver net. For this reason, even if the activation processing tank 28 is short, the activation processing can be appropriately performed, and the total length of the activation processing tank 28 can be shortened. In addition, compared to a structure in which the activation processing tank 28 is provided horizontally, the length of the installation space in the front-rear direction can be reduced by the amount of the activation processing tank 28 being inclined.

The seaweed cultivation work boat 1 uses the storage tank 14 as a tank for the activation treatment liquid during the activation processing, and uses the storage tank 14 during the seaweed cutting.
Therefore, the size of the hull 2 can be reduced as compared with a structure in which the tank for the activation treatment liquid and the storage tank for laver are formed separately and provided on the hull 2.

Further, since the activation processing tank 28 is located below the window 7 for visually recognizing the front, the line of sight of the occupant of the steering wheel seat 4 is not obstructed by the activation processing tank 28. In addition, the laver net that has passed through the activation treatment tank 28 is located at the rear of the laver net guide 3 that is inclined upward, that is, the main pipe 4.
3 is smoothly guided above the steering seat 4 along the rear portion of the auxiliary guide 64 and the main pipe 43 of the auxiliary guide 64. For this reason, despite the fact that the activation treatment tank 28 is disposed below the window 7, the seaweed net comes into contact with the corner formed at the connection portion between the upper end of the window 7 and the roof plate 62. Nori will not break.

Nori cultivation work boat 1 according to this embodiment
Is a slide-type cover 3 which is configured so that the mower 25 can be moved vertically, and covers the mower 25 in a lowered state.
Since 0 is provided, it is possible to easily switch between a mode in which the activation process is performed and a mode in which the seaweed is cut.

Further, since the draining plate 57 for preventing the laver cut from the laver net from flowing into the storage tank 14 during the activation treatment is disposed immediately below the drain duct 52, the draining plate 5 is provided.
The seaweed dropped in 7 can be washed away by the active treatment liquid. Therefore, it is possible to prevent the laver from remaining on the draining plate 57 and blocking the activation treatment liquid.

Further, since the rear thruster 27 is attached to the stern bracket 34 used for attaching the outboard motor 24 to the hull 2, the hull 11 of the hull 2 is equipped with the rear thruster 27 without any processing. can do. Furthermore, since the processing liquid passage 53 for supplying the activation processing liquid to the nozzles 51 of the activation processing tank 28 is formed radially, the activation processing liquid can be distributed to the many nozzles 51 almost evenly. . For this reason, the activation treatment tank 28
The laver net passing over the entire surface can be immersed in the activation treatment solution over the entire area.

[0049]

As described above, according to the present invention, since the activation treatment liquid flows against the laver net moving on the activation treatment tank, the activation treatment liquid easily permeates the laver net. Become. For this reason, the total length of the activation treatment tank can be shortened. In addition, compared to a structure in which the activation treatment tank is provided horizontally, the length of the installation space in the front-rear direction can be reduced by the amount of the inclination.

Therefore, the activation treatment tank is provided at a low position in the front part of the hull so as to have a shorter length in the front-rear direction while appropriately performing the activation treatment of the laver net. The total height can be reduced and the overall length can be reduced.

According to the second aspect of the invention, the size of the hull can be reduced as compared with a structure in which the tank for the activation treatment liquid and the storage tank for laver are formed separately and provided on the hull. An even more compact seaweed cultivation work ship can be realized.

According to the third aspect of the present invention, since the activation processing tank is located below the window for visually recognizing the front, the line of sight of the occupant in the steering seat is not blocked by the activation processing tank. In addition, the laver net that has passed through the activation treatment tank is smoothly guided to a position above the steering seat along the rear portion of the guide member that is inclined upward. For this reason, the activation treatment tank is arranged at a low position in front of the wheel seat and the structure of the whole vessel is reduced, while ensuring the visibility ahead and for seaweed cultivation work where seaweed is not cut off Ships can be provided.

[Brief description of the drawings]

FIG. 1 is a side view of a seaweed cultivation work ship according to the present invention.

FIG. 2 is a plan view of the laver cultivation work ship according to the present invention.

FIG. 3 is a sectional view of the hull of FIG. 2 taken along the line III-III.

FIG. 4 is a cross-sectional view showing a front end portion of an activation treatment tank and a reaper.

FIG. 5 is an enlarged sectional view showing an activation processing liquid supply section of the activation processing tank.

FIG. 6 is a cross-sectional view showing a rear end portion of the activation treatment tank and a steering seat.

FIG. 7 is a perspective view showing a part of an activation treatment tank and a laver net guide.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Nori aquaculture work boat, 2 ... hull, 3 ... nori net guide, 4 ... steering wheel seat, 7 ... window, 14 ... storage tank, 28 ... activation treatment tank, 25 ... reaper, 64 ... auxiliary guide.

Claims (3)

[Claims] 1. A laver net guide for guiding a laver net from the bow side to a ship and returning it from the stern to the sea, an activation treatment tank for immersing the laver net moving along the guide in an activation treatment liquid, and a laver cutting Nori cultivation work boat equipped with a machine, the activation treatment tank is provided on the portion inclined rearwardly upward of the guide so as to be inclined upwardly rearward along the guide, from the rear of the activation treatment tank Nori cultivation work, characterized in that the activation treatment liquid is caused to flow down to the front end, and the mowing machine is arranged at a position in front of the activation treatment tank and adjacent to the front end of the activation treatment tank. Charter ship. 2. The seaweed cultivation work ship according to claim 1, wherein a storage tank is provided below the activation treatment tank, and the activation treatment liquid and the cut seaweed are selectively stored in the storage tank. A seaweed cultivation work boat characterized by the following. 3. A laver net guide that guides a laver net on a ship from the bow side and returns it to the sea from the stern, an activation treatment tank that immerses the laver net moving along the guide in an activation treatment liquid, and a seaweed harvester Nori aquaculture work boat equipped with a machine, a steering seat and a window for visually confirming the front are provided at the rear end of the hull, and the activation treatment tank is disposed in front of the steering seat and below the window. In addition, the mowing machine is disposed at a position in front of the activation treatment tank and adjacent to the front end of the activation treatment tank, and the rear part of the guide is located near the rear end of the activation treatment tank. A seaweed cultivation work boat characterized in that it is formed by inclining rearward and upward from the steering wheel.