JPH08187038A - Boat for laver cultivation work - Google Patents

Abstract

PURPOSE: To prevent the hindrance of the maintenance and inspection works of an outboard engine by a laver net even in the case of returning the laver net to the sea from the stern. CONSTITUTION: The rear end of a guide 4 for a laver net is extended from the rear end of a tilt-up outboard engine 7 to the backside the boat. The laver net N is transferred above the outboard engine 7 and returned through the rear end of the tilt-up outboard engine 7 and the rear end of the boat to the sea. The maintenance and inspection of the outboard engine 7 can be performed without being hindered with the laver net N during the reaping work of laver or the acid-treatment work of the laver net.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seaweed aquaculture work vessel used for cutting cultured seaweed and performing acid treatment on seaweed nets.

[0002]

2. Description of the Related Art A conventional seaweed aquaculture work boat has a seaweed net guide projecting obliquely into the sea forward from the bow, and the guide moves forward so as to enter below the seaweed net on the sea surface. It was structured to guide the ship to the ship. In addition, the seaweed net guided on the ship moves on the seaweed net guide from the bow side to the stern side as the hull further advances, and is returned from the stern to the sea surface. Was cut and the seaweed was cut and then acid-treated by an acid-treatment device.

[0003]

However, when the outboard motor is used to drive the conventional seaweed aquaculture work ship constructed as described above, when the seaweed net is pulled up on the ship, There was a problem that it was difficult to maintain and inspect the external unit. This is because the seaweed net is returned to the sea from the stern part where the outboard motor is located.

That is, when the outboard motor is positioned at the traveling position or the tilt-up position for maintenance / inspection, the seaweed net is located in the vicinity of the operator's overhead, which is an obstacle.

The present invention has been made in order to solve such a problem. Even if the nori net is returned to the sea from the stern of the outboard motor, the nori net maintains the outboard motor.・ The purpose is not to get in the way of the inspection workers.

[0006]

According to a first aspect of the present invention, there is provided a seaweed aquaculture work vessel in which a rear end of a seaweed net guide which guides a seaweed net from a bow side to a ship and returns it from the stern to the sea is tilted up. Extending from the rear end of the outboard motor to the rear of the hull, and at the rear of the hull, provide a U-shaped protective member in a plan view that surrounds the left and right sides and the rear of the outboard motor. The rear end of the seaweed net guide is supported on the rear side of the hull.

In the seaweed cultivation work boat according to the second aspect of the present invention, a seaweed net guide is provided that guides the seaweed net from the bow side onto the ship and returns it from the stern to the sea by using left and right rails extending in the front-back direction of the hull. The rear ends of these rails are bent downward so that they project from the upper side of the outboard motor toward the rear of the hull in side view, and pass through the side of the outboard motor. By supporting the stern plate as a structure extending toward the front of the hull, the rear end of this seaweed net guide is extended from the rear end of the outboard motor in the tilt-up state to the rear of the hull, and The rails are connected by a cross member extending in the left-right direction of the hull behind the outboard motor.

[0008]

According to the present invention, the seaweed net passes over the outboard motor and is returned to the sea from the rear end of the outboard motor in the tilt-up state.

[0009]

【Example】

Example 1. An embodiment of the first invention will be described in detail below with reference to FIGS. FIG. 1 is a side view showing a seaweed cultivation work vessel according to the first invention, FIG. 2 is a plan view of the same, and FIG. 3 is a side view showing a state in which a seaweed net guide is advanced to a seaweed net lifting position. FIG. 4 is an enlarged sectional view showing a thruster mounting portion. 5 is a side sectional view of the stern portion, and FIG. 6 is a plan view of the same.

In these drawings, reference numeral 1 is a seaweed aquaculture work vessel according to this embodiment. The seaweed aquaculture work vessel 1 is configured so that the seaweed cutting and the acid treatment of the seaweed net after cutting the seaweed can be continuously performed. Reference numeral 2 is a hull of the seaweed aquaculture work vessel 1, 3 is a bridge, and 4 is a seaweed net guide for guiding the seaweed net onto the ship.

As shown in FIG. 4, the front portion of the hull 2 is formed in a trimaran shape, and the central projection 2a protruding downward at the central portion in the left-right direction generates a water flow in the left-right direction to face the hull. The thruster 5 for changing the is attached. In FIG. 4, reference numerals 2b and 2c are left and right protrusions that protrude downward on the left and right of the central protrusion 2a having the thruster 5.
The protrusion 2a is formed so as to point downward. Further, as shown in FIG. 1 and FIG. 3, the central projection 2a is gradually biased upward toward the rear of the thruster 5 and is connected to a horizontal portion 2d extending to the rear of the hull. That is, the portion of the ship bottom behind the portion to which the thruster 5 is attached does not project downward.

As shown in FIG. 4, the thruster 5 has a structure in which a propeller 5a having an axis lined in the left-right direction is rotated by a hydraulic motor 5b in the cabin, and is connected to the hull 2 through a tubular connecting member 5c. It is fixed. In addition,
The hydraulic pressure for driving the hydraulic motor 5b is configured to be supplied from the oil supply pump 6 (FIG. 2) mounted on the rear portion of the hull. Further, the propeller 5a is switched between normal rotation and reverse rotation by switching the hydraulic circuit of the hydraulic pressure supplied to the hydraulic motor 5b between forward and reverse, so that the hull 2 can turn in either left or right direction. . further,
The propeller 5 is inserted into the openings at both ends of the tubular connecting member 5c.
A screen (not shown) is provided for preventing foreign matter in the sea from hitting a. This screen is formed by combining stainless steel pipes in a grid pattern.

An outboard motor 7 is mounted on the rear portion of the hull 2. As shown in FIGS. 5 and 6, this outboard motor 7 is attached to a stern plate 8 integrally provided on the hull 2, and two outboard motors 7 are mounted on the left and right sides. In FIG. 5, the position where the outboard motor 7 is tilted up and pulled up above the water is drawn by a two-dot chain line A. Also, in FIG.
A chain double-dashed line L in FIGS. 3 and 5 indicates the position of the sea surface.

At the rear of the hull 2 on which the outboard motor 7 is mounted, there is integrally provided a protection member 9 that extends rearward of the stern plate 8 and protects the outboard motor 7. ing. The protective member 9 is formed in a U-shape in a plan view so as to surround the left and right sides and the rear of the two outboard motors 7 arranged side by side.
As a result, the outboard motor 7 is arranged inside the opening 9a of the protection member 9, and the cowling 7a above the cowling 7a moves forward and upward from the opening 9a at the time of tilting up shown by the chain double-dashed line A in FIG. Come to visit. Although the opening 9a of the seaweed cultivation work boat 1 shown in this embodiment is opened upward so that the outboard motor 7 can be seen from above,
A lid (not shown) may be attached to the opening 9a so that the outboard motor 7 can be easily removed during maintenance and inspection work.

The protective member 9 has a length extending rearward from the stern plate 8 so as to protect the outboard motor 7 in a tilted-up state.
As shown in FIG. 1, the rear end portion of the protective member 9 extending rearward from the hull 2 has support stays 10 on both left and right sides.
It is supported by the stern plate 8 via.

An oil supply pump 6 for supplying oil pressure to the thruster 5 and hydraulic equipment such as a mowing device described later is mounted on the port side of the upper surface of the protection member 9. Thereby, the oil supply pump 6 can be arranged by effectively utilizing the dead space on the protection member 9.

The seaweed net guide 4 is formed by combining stainless steel pipes, and as shown in FIG. 1 and FIG.
A plurality of struts 12 which are erected upright on the top rails 11 on the left and right upper edges of the hull 2 at intervals in the front and rear, and welded to the upper edges of these stanchions 12, passing from the front of the hull to above the bridge 3 to the rear of the hull A pair of left and right seaweed net rails 13 extending further rearward, and a bridge 3 from the lower part of the foremost support column 12.
The deck 14 of the hull 2 extends rearward and downward to the front.
From a pair of left and right guide rails 15 fixed to the rails, and a movable rail 17 and the like, the rear ends of which are connected to the guide rails 15 via sliding tubes 16 (FIG. 3) and which are configured to be movable in parallel in the front and rear directions. Has been formed.

As shown in FIGS. 1 and 5, the pair of left and right seaweed net rails 13 have rear end portions extending rearward from the protective member 9 of the hull 2 and extending end portions being protective members. It is fixed to the rear surface of 9. More specifically, the rear end of the seaweed net rail 13 is inclined rearward and downward from a position just above the rear edge of the protective member 9 as shown in FIG. It is bent toward the front side of the hull at such a position and extends to the rear surface of the protection member 9.

By forming the rear end of the seaweed net rail 13 in this way, the rear end of the seaweed net guide 4 extends from the rear end of the outboard motor 7 in the tilted up state to the rear side of the hull. Will be. The portions of the left and right seaweed net rails 13 on the rear side of the protective member 9 are connected by two cross pipes 13a and 13b (FIG. 5).

The slide tube 16 has a guide rail 15 penetrating therethrough and is slidably supported by the guide rail 15 in the longitudinal direction. The rear end of the movable rail 17 is connected to the slide tube 16. ing. As shown in FIG. 2, the movable rail 17 includes a main pipe 17a connected to the sliding pipe 16 and extending forward and backward, a cross pipe 17b extending laterally, and a sub pipe 17c extending forward from the cross pipe 17b.
The rails 13 and 1 for the seaweed nets on the left and right
It is located between the three. The front end portion of the movable rail 17 is formed so that the width thereof becomes gradually narrower toward the front in a plan view and the tip is sharpened. The movable rail 17 is curved so as to have a substantially V shape in a side view as shown in FIGS. 1 and 3.

In order to guide the seaweed net floating on the sea surface onto the ship by using the seaweed net guide 4 thus constructed, first, the movable rail 17 is moved from the storage position shown in FIGS. 1 and 2 to the front side of the hull. And move it to the nori net lifting position. At this time, the sliding tube 16 is slid forward with respect to the guide rail 15.

When the sliding tube 16 is moved to the front end portion of the guide rail 15, the movable rail 17 is formed in a letter shape in a side view, so that the front portion of the movable rail 17 is lowered downward as shown in FIG. It will be submerged in the sea in a tilted state. In FIG. 3, reference numeral N indicates a seaweed net floating on the sea surface. Here, the length of the movable rail 17 in the front-rear direction will be described.

The movable rail 17 shown in this embodiment is shown in FIG.
As shown in FIG. 5, the front end of the seaweed is positioned below the thruster 5 in the state of being positioned at the seaweed net lifting position. When formed in this manner, foreign matter such as seaweed floating in the sea is caught on the movable rail 17 by the forward movement of the hull 2 with the movable rail 17 positioned at the nori net lifting position, and the foreign matter is thruster when the thruster is driven. It is possible to prevent being sucked into 5. However, in spite of such advantages, when the hull 2 is moved forward while being positioned at the seaweed net lifting position, the movable rail 17 causes bubbles to deep in the water, and the thruster 5 sucks bubbles when using the thruster 5. The turning ability becomes low.

Therefore, it is desirable to set the length of the movable rail 17 in the front-rear direction so that the front end thereof is above the lower edge of the water passage of the thruster 5. Preferably, the thruster 5 is set to be above the upper edge of the water passage. That is, it is desirable from the viewpoint of turning property to position the front end of the movable rail 7 at the seaweed net lifting position above the imaginary line A shown in FIG. 3, and preferably above the imaginary line B.

After the movable rail 17 is thus positioned at the nori net lifting position, the nori aquaculture work vessel 1 is moved forward from the state shown in FIG. As a result, the seaweed net N rides on the mobile rail 17, and the seaweed aquaculture work boat 1
As the ship moves forward, it comes to ride on the nori net guide 4 from the front part where the movable rail 17 is located, and moves backward on the ship, and thereafter, as shown in FIG. From the rear end, it will pass above the outboard motor 7 and descend to the sea surface. As shown in FIG. 2, when the width of the seaweed net N is narrower than the width of the seaweed net guide 4 and it is not supported by the seaweed net rails 13, the left and right seaweed net rails 13 are It will move rearward while being supported by a cross pipe to be connected, a mowing device described later, an acid treatment tank, and the like. Thus, in the seaweed cultivation work vessel 1 according to the present invention, when the seaweed net N moves on the ship, the seaweed is cut and the seaweed net is acid-treated.

Reference numeral 18 is a cutting device for cutting seaweed. The cutting device 18 has a conventionally known structure for cutting the seaweed from the seaweed net by rotating a not-shown cutting blade around an axis in the left-right direction, and is supported and fixed to the seaweed net guide 4. There is.

Reference numeral 20 is an acid treatment tank for performing acid treatment on the seaweed net N after the seaweed is cut off. This acid treatment tank 20
Is the rails 1 for the nori nets on the left and right of the nori net guide 4
3, 13 and a cross pipe (not shown) that is laterally stretched between the rails 13 and 13 for seaweed nets.

Further, the acid treatment tank 20 is integrally formed of fiber reinforced plastic, and as shown in FIGS. 1 and 2, substantially dish-shaped acid treatment portions 21 and 2 open upward.
2 are arranged in front of and behind the bridge 3, and the cutting device 18
It is configured so as to extend from the rear to the stern through the upper side of the bridge 3. When the seaweed net N moves on the acid treatment tank 20, the seaweed net N is immersed in the acid treatment chemical solution stored in the dish portion, and the chemical solution is supplied from a nozzle (not shown). By spraying, it has a structure that allows the acid treatment chemical to penetrate into the seaweed net.

The chemical solution is stored in a chemical solution storage 23 provided in front of the bridge of the hull 2, and is sent from the bridge 3 to the acid treatment section 21 on the front side of the ship by the chemical solution supply pump 24. The acid treatment section 21 is provided with a chemical liquid passage (not shown) around the acid treatment portion 21, and the chemical liquid discharged from the chemical liquid supply pump 24 is first made to flow from the supply hose 24a to the chemical liquid passage and then formed on the wall of the chemical liquid passage. The sprayed nozzles flow out toward the seaweed net N on the acid treatment unit 21 and are collected in the acid treatment unit 21. The communication port of the supply hose 24a in the acid treatment section 21 is shown by 21a in FIG. The chemical solution thus accumulated in the acid treatment section 21 overflows from the overflow passages 20a provided on both the left and right sides of the acid treatment section 21 into the chemical solution grooves 20b on the left and right, passes through the chemical solution groove 20b, and the acid treatment on the rear side is performed. It is flowed to the part 22.

The acid treatment section 22 on the rear side is constructed so as to be able to store the chemical liquid to some extent, and is connected to the chemical liquid storage 23 via the chemical liquid return pipes 25 on the left and right. A communication port of the chemical liquid return pipe 25 in the acid treatment unit 22 is indicated by reference numeral 22a in FIG.

A seaweed aquaculture work vessel 1 constructed in this way
In order to cut off the seaweed and to treat the seaweed net N with acid, the movable rail 17 is moved forward as shown in FIG. 3, and the hull 2 is moved with the seaweed cutting device 18 and the chemical solution supply pump 24 being operated. This is done by advancing toward the seaweed net N. The thruster 5 is used when adjusting the traveling direction to the left and right.

When the seaweed net N is guided by the seaweed net guide 4 and reaches above the seaweed cutting device 18, the seaweed hanging from the seaweed net N is cut off. The cut seaweed is stored in the deck 14. Then, when the hull 2 further advances and the seaweed net N from which the seaweed has been cut off reaches the acid treatment tank 20, the seaweed net N is sprayed from below with a chemical solution ejected from a nozzle (not shown), and at the same time treated with the acid. The liquid medicine is permeated by being immersed in the liquid medicine stored in the parts 21 and 22.

The seaweed net N that has passed through the acid treatment tank 20 is returned to the sea surface from the rear end of the seaweed net rail 13 after passing above the outboard motor 7. As a result, the cutting work of the seaweed and the acid treatment of the seaweed net are continuously performed.

According to the seaweed aquaculture work vessel 1 thus constructed, the rear end of the seaweed net guide 4 extends from the rear end of the outboard motor 7 in the tilt-up state to the rear side of the hull. Therefore, the seaweed net N exists above the outboard motor 7 at a distance. Therefore, the nori net N does not interfere with the workers when performing maintenance / inspection of the outboard motor 7 during the cutting work of the nori seaweed and the acid treatment of the nori net. In addition, this maintenance / inspection work is performed on the outboard motor 7
Is carried out with the cowling 7a removed with the cruise position set, or the outboard motor 7 is tilted up. Since the seaweed net N is returned to the sea from the rear of the rear end of the outboard motor 7 in the tilted-up state, it is an obstacle even when the outboard motor 7 is tilted up and the seaweed or the like wrapped around the propeller is removed. Never.

Further, when the protective member 9 is provided at the rear portion of the hull 2 as shown in this embodiment, the outboard motor 7 is used when the stern side is approaching the shore or the pier, when berthing, or when berthing.
Can be prevented from coming into contact with the shore and being damaged. Moreover, by supporting the rear end portion of the seaweed net guide 4 with the protective member 9, the rearward projection amount when the rear end portion of the seaweed net guide 4 is extended from the hull 2 to the rear side of the hull. Since the number of protective members 9 is reduced, it is advantageous in terms of strength of the seaweed net guide 4.

In this embodiment, the protection member 9 is provided at the stern part of the hull 2 to protect the outboard motor 7, but the protection is provided by configuring the nori net guide 4 as described later. A protective function equivalent to the case where the member is provided can be obtained by the seaweed net guide 4.

Example 2. An embodiment in which the outboard motor is protected by the nori net guide will be described in detail below with reference to FIGS. 7 and 8. Note that FIG. 7 and FIG.
2 shows a seaweed aquaculture work vessel according to the invention of FIG. FIG. 7 is a side view showing the stern part of the seaweed cultivation work ship according to the second invention, and FIG. 8 is a plan view of the same. In these figures, the same or equivalent members as those described in FIGS. 1 to 6 are designated by the same reference numerals, and detailed description thereof will be omitted.

The seaweed aquaculture work vessel 1 shown in FIGS. 7 and 8.
No protective member is provided at the rear of the hull 2, and the stern plate 8 is the rearmost part of the hull 2. Only one outboard motor 7 is mounted on the stern plate 8 at the center in the left-right direction. And the seaweed net rails 13 on the left and right of the seaweed net guide 4,
The rear end of 13 is formed so as to substantially serve as a protective member.

More specifically, the rear end of the seaweed net rail 13 shown in this embodiment is bent downward so as to be convex from above the outboard motor 7 toward the rear of the hull in a side view. It is formed so as to extend toward the front side of the hull through the left and right sides of the outboard motor 7, and the extending end portion is supported and fixed to the stern plate 8. And these rails 13, 13 are
On the rear side of the hull from the outboard motor 7, cross pipes 31 and 32 extending in the left-right direction of the hull are connected to each other.
A portion of each seaweed net rail 13 extending toward the front side of the hull is supported from below by a support stay 10 having one end fixed to the stern plate 8.

That is, the rear end of the seaweed net rail 13 is positioned rearward of the hull from the rear end of the outboard motor 7 in the tilt-up state, and the seaweed net rail 13 and the cross pipe 31 are arranged. , 32, surrounds the left and right sides and the rear of the outboard motor 7.

Therefore, in the seaweed cultivation work vessel 1 shown in this embodiment, the seaweed net N does not interfere with the operator when the outboard motor 7 is maintained and inspected, as in the case of the first embodiment. Moreover,
The outboard motor 7 can be protected by the seaweed net guide 4 at the time of berthing or leaving the shore without providing a protective member on the stern of the hull 2.

[0042]

As described above, in the seaweed cultivation work vessel according to the first invention, the rear end of the seaweed net guide which guides the seaweed net from the bow side onto the ship and returns it from the stern to the sea is tilted up. Extending from the rear end of the outboard motor to the rear side of the hull, and at the rear of the hull, a protection member having a U-shape in plan view surrounding the left and right sides and the rear of the outboard motor is provided. Since the rear end of the seaweed net guide is supported on the rear side of the hull, the seaweed net passes above the outboard motor and is located at the rear of the hull from the rear end of the outboard motor in the tilt-up state. Returned to.

Therefore, even if the seaweed net is returned to the sea from the stern where the outboard motor is located, maintenance of the outboard motor during maintenance of the seaweed cutting and the acid treatment of the seaweed net is performed. The nori net does not interfere with the workers during the inspection.

The outboard motor can be protected by the protective member when the stern side is approaching or leaving the shore or pier. Since the rear member of the seaweed net guide is supported by the protective member at the rear of the hull, the amount of protrusion to the rear when extending the rear end of the seaweed net guide from the hull to the rear of the hull However, it is advantageous in terms of strength of the seaweed net guide because it requires less protective material.

The seaweed cultivation work boat according to the second aspect of the present invention uses a seaweed net guide that guides the seaweed net from the bow side onto the ship and returns it from the stern to the sea by using the left and right rails extending in the front-back direction of the hull. The rear ends of these rails are bent downward so that they project from the upper side of the outboard motor toward the rear of the hull in side view, and pass through the side of the outboard motor. By supporting the stern plate as a structure extending toward the front of the hull, the rear end of this seaweed net guide is extended from the rear end of the outboard motor in the tilt-up state to the rear of the hull, and Since the rails of each are connected by a cross member that extends in the left-right direction of the hull behind the outboard motor, the seaweed net passes above the outboard motor and is located at the rear of the hull from the rear end of the outboard motor in the tilt-up state. Returned to the sea.

For this reason, even if the seaweed net is returned to the sea from the stern where the outboard motor is located, maintenance of the outboard motor during maintenance of the seaweed cutting and the acid treatment of the seaweed net is performed. The nori net does not interfere with the workers during the inspection. Also, the outboard motor can be protected by the rear end of the rail when the stern side is approaching or leaving the shore or jetty.

[Brief description of drawings]

FIG. 1 is a side view showing a ship for seaweed aquaculture work according to a first invention.

FIG. 2 is a plan view showing a seaweed cultivation work vessel according to the first invention.

FIG. 3 is a side view showing a state in which the nori net guide is advanced to a nori net lifting position.

FIG. 4 is an enlarged sectional view showing a thruster mounting portion.

FIG. 5 is a side sectional view of a stern portion.

FIG. 6 is a plan view of a stern portion.

FIG. 7 is a side view showing a stern portion of a ship for seaweed cultivation work according to a second invention.

FIG. 8 is a plan view showing a stern part of a seaweed cultivation work ship according to a second invention.

[Explanation of symbols]

1 ... Nori aquaculture work boat, 2 ... Hull, 3 ... Bridge, 4 ...
Guide for seaweed net, 5 ... Thruster, 7 ... Outboard motor, 8 ... Stern plate, 9 ... Protective member, 13 ... Rail for seaweed net, 18 ... Seaweed cutting device, 20 ... Acid treatment tank, 31, 32 ... Cross pipe .

Claims (2)

[Claims] 1. In a ship for seaweed aquaculture, which is equipped with a guide for seaweed net that guides the seaweed net from the bow side back to the sea from the stern and travels by an outboard motor, the rear end of the seaweed net guide is A protective member, which extends from the rear end of the outboard motor in the tilt-up state to the rear side of the hull and surrounds the left and right sides and the rear of the outboard motor, is provided at the rear part of the outboard motor. In the seaweed cultivation work boat, the rear end of the seaweed net guide is supported on the rear side of the hull of the outboard motor. 2. A seaweed netting guide which guides the seaweed net from the bow side back onto the ship and returns it from the stern to the sea. The left and right rails extending in the same direction are used to support the seaweed net, and the rear ends of these rails are bent downward from above the outboard motor toward the rear of the hull in a side view. The rear end of this seaweed net guide is supported by the stern plate as a structure that extends toward the front of the hull through the side of the outboard motor, and the rear end of the outboard motor in the tilt-up state is More to the rear of the hull,
Moreover, a seaweed cultivation work boat characterized in that these rails are connected to each other by a cross member extending in the left-right direction of the hull behind the outboard motor.