JPH0681243U - Nori work boat - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a seaweed work boat capable of preventing the intrusion of waves rushing from the traveling direction of the seaweed work boat into and out of the seaweed during the round trip to and from the cutting place. [Structure] The present invention is characterized by having a bow 51 that prevents seawater from entering the bow during navigation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seaweed work boat that performs operations such as cutting seaweed from seaweed nets spread on the sea surface in seaweed farms.

[0002]

[Prior art]

 Generally, nori culture is carried out by a floating method in which a float is attached to the seaweed net, and the seaweed net is stretched so that it floats on the surface of the sea, and then anchored.

FIG. 6 and FIG. 7 show, as a conventional seaweed work ship, a mowing acid treatment ship that not only cuts seaweed from the seaweed net 1 used in a culture method called floating, but also performs acid treatment. .

A conventional cutting acid treatment ship is provided with a power propulsion mechanism 5 on a hull 4, and a pipe-shaped guide member 6 is provided on the upper part of the hull 4. The guide member 6 is divided into a front guide member 7, an upper guide member 8 and a rear guide member 9. The front guide member 7 is formed in a U-shape in a plan view. The U-shaped curved tip is submerged in the sea at a certain inclination from the bow, and the other end is erected on the deck by a downward leg 10. In addition, the base portion of the front guide member 7 is detachably and rotatably attached to the upper guide member 8 by a bolt 11. Further, the upper guide member 8 is formed by two pipes arranged above the starboard side of the hull 4 in parallel with the axial direction of the hull 4, and these two pipes are the axial lines of the hull 4. They are connected to each other by several crosspieces 12 orthogonal to the direction and are fixed to the hull 4 by legs 13.

The upper guide member 8 has a curved line or a continuous line with the front guide member 7 so that the seaweed net 1 scooped up by the front guide member 7 is smoothly guided to the rear of the hull. It is configured to form a straight line.

On the left and right sides of the rear end of the upper guide member 8, there are fixed rear guide members 9 which are expandable and contractible in the longitudinal direction as shown in FIG. The rear guide member 9 is formed by a plurality of (four in this embodiment) pipes 14a, 14b, 14c, and 14d each having a gradually smaller diameter so as to be telescopic in a coaxial manner so as to extend and contract. The pipe 14a is fixed to the rear end of the upper guide member 8. A nut body 16 is fixed to the lower surface side of the tips of the three inner pipes 14b, 14c, 14d, and the upper end of a rigid rod 15a having a lower end to which a float 15b is fixed is made screwable. At the tip of the innermost pipe 14d, as shown in FIG. 9, a hook 18 for hooking the side rope or the like of the seaweed net 1 when pulling out the pipes 14b, 14c, 14d is pivotally attached with a shaft 19. A click mechanism 20 is provided between the hook 18 and the side surface of the pipe 14d to allow the hook 18 to rotate clockwise when an excessive force acts on the hook 18. The maximum length of each of the pipes 14b, 14c, 14d of the rear guide member 9 when the pipes 14b, 14c, 14d are maximally stretched is at least when the seaweed net 1 that has been subjected to the acid treatment in the portion of the acid treatment mechanism 25, which will be described later, moves at least as the boat advances The length is set such that the guide member 9 can be levitated in the air for a sufficient time for acid treatment while moving relative to the rear end of the guide member 9. Also, in order to pull back each pipe 14b, 14c, 14d from the maximum expanded state, a wire 17b is inserted through the center of each pipe 14a, ... 14d, and one end of the wire 17b is fixed to the innermost pipe 14d, The other end of the wire 17b is connected to a motor 17 dedicated to pulling back.

The width of the front guide member 7, the upper guide member 8 and the rear guide member 9 may be substantially the same as or larger than the width of the seaweed net 1. Further, the tip shape of the front guide member 7 is not limited to the U-shape, but may be a V-shape, as long as the seaweed net 1 floating on the sea surface can be smoothly scooped as the hull 4 advances. However, it is not particularly limited.

A conventionally known reaping mechanism 21 is provided below the bow inclination portion of the upper guide member 8. As shown in FIG. 10, for example, the reaping mechanism 21 includes a shaft 22 rotated by an electric motor (not shown) and an L-shaped blade 23 having a width substantially the same as that of the front guide member 7 formed radially. The seaweed hanging down from the seaweed net 1 is cut by rotating the L-shaped blade 23. As the reaping mechanism 21, by rotating a wire in which a wire such as a piano wire is stretched between the outer peripheries of two discs, the seaweed may be reaped by the stretched wire. However, it is not limited to the above as long as it is a mechanism for harvesting.

Then, in the central portion of the hull 4, an acid treatment mechanism 25 and a deck of the stern portion thereof are provided so as to prevent the acid treatment liquid described later from being mixed in the storage portion 24 for harvesting the harvested seaweed. The seaweed, which is provided separately, is cut by the cutting mechanism and stored in the storage unit 24.

Immediately after the reaping mechanism 21, an acid treatment mechanism 25 is provided for performing an acid treatment on the seaweed net 1 that has been cut and dried. The acid treatment mechanism 25 injects the acid treatment liquid from the lower surface side of the seaweed net 1 through a large number of injection holes of the acid treatment pipe 26 that is provided across the entire width of the upper draft member 8 to perform the acid treatment. Has been formed. As shown in FIG. 11, the acid treatment liquid 31 is pressure-fed to the acid treatment pipe 26 from the acid treatment liquid tank 28 provided on the hull 4 by the pump 29 through the feed pipe 30. In order to maintain the acid concentration of the acid treatment liquid 31 in the acid treatment liquid tank 28 at a predetermined value, a pH sensor 32 that detects the pH of the acid treatment liquid 31 and an acid agent is added according to the detection value of the pH sensor 32. An acid agent supply system 33 for supplying the inside of the treatment liquid tank 28 and a diluting liquid supply system 34 for supplying a diluting solution such as seawater or an alkaline solution into the inside of the acid treatment liquid tank 28 are provided.

Both supply systems 33 and 34 are required to supply the acid and the diluent in the acid solution tank 35 and the diluent solution tank 38 into the acid treatment solution tank 28 through the feed pipes 37 and 40 by the pumps 36 and 39. It is designed to supply a quantity. In addition, as the acid, it is preferable to use one prepared by appropriately selecting from inorganic acids and organic acids used for acid treatment of laver. Further, it is preferable to use sodium hydroxide, potassium hydroxide or the like as the alkali.

Further, in the hull 4, a cross-section is provided so that the used acid treatment liquid can be recovered by using the deck as a double deck from the position where the acid treatment pipe 26 of the acid treatment mechanism 25 is installed to the front and rear in the traveling direction of the ship. An approximately rectangular tank 50 is formed, and a pump for circulation is installed as necessary, and the acid treatment liquid can be circulated by connecting to the feed pipe 30 of the acid treatment mechanism 25. Is being done. Furthermore, by collecting the acid treatment liquid used in the tank 50, it is possible to prevent the acid treatment liquid from unnecessarily dripping into the sea and prevent the occurrence of pollution.

A permeation promoting mechanism 41 for increasing the permeation rate of the acid treatment liquid into the cells of the seaweed is provided at a downstream position of the acid treatment mechanism 25 in the traveling direction of the seaweed net 1. As shown in FIG. 12, this permeation promoting mechanism 41 holds the running laver net 1 in the permeating liquid 43 of the permeating tank 42 arranged over the entire width of the upper guide member 8 with the roller mechanism 44 upward. It is formed so as to be pressed down more and to be immersed. The pressing roller mechanism 44 is formed by rotatably mounting a roller 46 on a shaft member 45, and a base end portion of the shaft member 45 is pivotally attached to a pedestal portion of the permeation tank 42 so as to be tiltable. The permeation liquid 43 may be any liquid that can promote penetration of the acid treatment liquid 31 into the cells through the cell membrane of seaweed. An ultrasonic oscillator 47 is provided in the permeation tank 42. The ultrasonic oscillator 47 further accelerates the permeation rate of the acid treatment liquid 31 into the cells of the seaweed using ultrasonic waves, and cleans the dirt adhering to the surface of the seaweed.

Further, an ozone generator or the like is provided in the penetration promoting mechanism 41 to provide a sterilizing mechanism 48 for sterilizing various bacteria adhering to the leaves. In addition, as another sterilization mechanism, the seaweed net 1 may be irradiated with ultraviolet rays.

A steering room 49 is provided at the rear end of the hull 4, and the height of the steering room 49 is set so that it does not hinder the traveling of the seaweed net 1 on the guide member 6. The height is lower than the height, and the steering room 49 is provided with a control unit for command-controlling the operations of the mowing mechanism 21, the acid treatment mechanism 25, the ultrasonic oscillator 47, and the sterilization mechanism 48. It is most preferred to operate within 49.

Further, the storage section 24 for storing the cut seaweed and each of the mechanisms after the acid treatment mechanism 25 are completely isolated by a separator plate or the like not shown.

While propelling the seaweed work boat structured in this way by the power propulsion mechanism 5, the front guide member 7 whose tip is immersed in the sea is located below the seaweed net stretched over the sea surface. After inserting, the seaweed net is automatically scooped continuously from the surface of the sea, and the seaweed net is efficiently mowed from the seaweed net by the cutting mechanism installed on the hull, and the seaweed net after cutting is subjected to acid treatment.

[0018]

[Problems to be solved by the device]

 The bow of such a seaweed work boat is closer to the sea surface than the bow of a normal ship due to its workability and structural convenience, and is formed almost horizontally with the sea surface. As a result, it was difficult for the ship speed to rise because it was easy to cover the waves from the traveling direction while self-propelled. In addition, in particular, since the cut seaweed is stored in the storage portion 24 of the seaweed work boat after cutting the seaweed, there is a problem that the weight of the seaweed makes the draft shallow and seawater can easily enter the ship. It was If a large amount of seawater enters the ship, the cut seaweed will flow out. Furthermore, it is desirable that the cut seaweed be processed as soon as possible, but if the speed of the ship is not increased, it will take time before it is processed, and the quality of the finished product may deteriorate. For that reason, measures to prevent breakage were also pending.

The present invention has been made in view of these problems, and provides a seaweed work boat capable of preventing the intrusion of waves rushing in from the traveling direction of the seaweed work boat when the seaweed is returned to the reaping site. The purpose is to provide.

[0020]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the seaweed working ship of the present invention is characterized by having a bow for preventing seawater from entering the bow during navigation.

[0021]

[Action]

 In the seaweed working ship of the present invention having the above-described structure, the ingress of seawater into the bow is reliably prevented by the bow tool during navigation.

[0022]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

The present example shows a seaweed work boat that cuts seaweed from the seaweed net 1 used in a culture method called a float and performs acid treatment, and the conventional ship shown in FIGS. 6 and 7 is used. For example, the bow 51 shown in FIGS. 1 to 3 is installed and formed. The description of the same parts as the conventional ones will be omitted or simplified, and the same reference numerals will be used.

The seaweed work boat according to the present embodiment is provided with a power propulsion mechanism 5 on a hull 4, and a bow 51 of the hull 4 is arranged on the bow portion of the hull 4 to prevent sea water from entering the bow portion during navigation. It is set up.

The bow 51 in the present embodiment is formed so as to be expandable and contractible in a bellows shape. That is, as shown in FIG. 2, a plurality of bone members 52, 52 ... The left and right ends of the shaft are pivotally attached to the outside of the bow of the hull 4 in the shape of a fan by locking shafts 54, and a cloth member 53 made of canvas material having water impermeability is stretched between the bone members 52. It is installed and formed. The locking shaft 54 and the bone member 52 are detachably attached to the hull 4. In this way, the bow 51 of this embodiment is arranged so that it can be opened and closed in a fan shape around the locking shaft 54. The maximum height H of the bow 51 (see Fig. 1) should be such that at least seawater such as waves does not enter the bow during navigation with a lot of seaweed. A ratchet (not shown) is provided inside the locking shaft 54 so that the opening / closing angle of the bow 51 can be freely changed and held at an arbitrary angle.

The other configurations are similar to those of the conventional example, and the description thereof will be omitted.

Next, the operation of this embodiment will be described.

As shown in FIG. 1, the seaweed work boat of the present embodiment, as shown in FIG. 1, bends the front guide member 7 with a bolt 11 at the joint with the upper guide member 8 to bend it into a U shape. Then, pull the tip out of the sea and open the upper part of the bow of the seaweed work boat. Then, the bow 51 is attached to the bow portion, and then the bow 51 is lifted up by the bone member 52 and the cloth member 53 in accordance with the height of the waves at the time of catching and the like, as shown in FIG. Depart at the height.

Then, at the work site, as shown in FIG. 3, the bow 51 is returned to the closed state to return the bow portion to a flat state, and is removed from the bow portion and placed at a predetermined position on the hull 4. Alternatively, the bow 51 is covered with an appropriate cover. Then, the U-shaped curved front end portion of the front guide member 7 which has been rotated in advance and pushed up above the ship is immersed in the sea at a constant inclination from the bow. Then, while propelling it by the power propulsion mechanism 5 in the same manner as in the conventional example, the front part internal member 7 whose tip is immersed in the sea is put under the nori net stretched on the sea surface, The seaweed net is automatically scooped continuously from the sea surface, the seaweed is efficiently cut from the seaweed net by the cutting mechanism 21 provided on the hull 4, and acid treatment is applied to the seaweed net after cutting.

Even after cutting the seaweed, the bow 51 is attached to the bow in the same way as before the harvesting, and the bow 51 is stretched to a height at which seawater does not enter before sailing. Let

When the nori work boat is reciprocated to and from the seaweed reaping work site with the bow 51 thus mounted in an expanded state, the bow portion is higher than the sea surface and is more rugged than the conventional work ship. Since the height of the bow is set according to the height and other factors, it is possible to navigate at a higher boat speed without seawater entering the bow.

Further, even after the seaweed mowing operation is completed, the draft of the hull 4 becomes shallow due to the weight of the seaweed, but by adjusting the height of the bow 51, it is possible to reliably prevent waves entering the ship from the bow. In this way, if seawater can be prevented from entering the ship and the speed of the ship can be increased, the cut seaweed will not flow out and the seaweed after cutting will be processed immediately. You can also

As described above, in the present embodiment, since the bow portion of the seaweed work boat can be set higher than the sea surface by sailing with the bow 51 open, The quality of seaweed can be improved if the speed of the seaweed can be increased by suppressing the influence of waves and the cut seaweed can be immediately supplied to the processing process without being immersed in seawater on the ship. In addition, since the ingress of seawater can be prevented, the problem of outflow of cut nori is eliminated.

As shown in FIG. 4, the bow may be a split armor that is formed in a nesting shape and can be expanded and contracted, or as shown in FIG. The formed guard shape may be used. The position of the bow is not limited to the inside or outside of the hull of the bow.

Although the front guide member 7 is rotated by the bolt 11 portion in the above embodiment, the front guide member 7 may be removed from the upper guide member 8 by the bolt 11 portion.

Further, the present invention is not limited to the above-mentioned embodiment, but can be modified as necessary.

[0037]

[Effect of device]

 Since the seaweed work boat of the present invention is constructed and operates in this way, the bow portion does not cover seawater such as waves during traveling, and the influence of waves can be suppressed and the ship speed can be increased. .

In addition, the bow can be easily attached and detached during the seaweed cutting operation.

[0039] Even after the seaweed mowing work is completed, the weight of the seaweed causes the water to have a shallow draft. In addition, since the speed of the ship can be increased and the speed of the ship can be increased, the flow of the cut seaweed can be prevented, and the cut seaweed can be immediately supplied to the processing process, which can improve the quality of the seaweed. And so on.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the seaweed working ship of the present invention.

FIG. 2 is a perspective view showing a main part of the seaweed work ship of FIG.

FIG. 3 is a perspective view showing a state in which the bow of the seaweed work boat of FIG. 1 is contracted.

FIG. 4 is a perspective view showing another embodiment of the seaweed working ship of the present invention.

FIG. 5 is a perspective view showing still another embodiment of the seaweed working ship of the present invention.

FIG. 6 is a side view showing an example of a conventional seaweed cutting acid treatment vessel.

7 is a plan view of FIG.

FIG. 8 is an enlarged view of a rear guide member.

FIG. 9 is an exploded perspective view showing a hook attached to a pipe.

FIG. 10 is a vertical sectional side view of the mowing mechanism.

FIG. 11 is a block diagram of an acid treatment mechanism.

FIG. 12: Configuration diagram of permeation promoting mechanism

[Explanation of symbols]

 1 seaweed net 4 hull 51 bow

Claims (1)

[Scope of utility model registration request] 1. A seaweed working ship having a bow that prevents seawater from entering the bow during navigation.