JPH03254606A - Method for collecting laver and apparatus therefor - Google Patents

Abstract

PURPOSE:To efficiently and safely collect laver leaves from a laver-culture net without any danger such as overturn accident by passing a boat under the laver-culture net, self-advancing the boat from the bow in the longitudinal direction of the net and collecting the laver leaves hung from the net on the boat. CONSTITUTION:A boat 1 is self-advanced from the bow 3 to determine the direction of the bow 3 from one end toward the other of a laver-culture net 2 (in the longitudinal direction) to lift the aforementioned laver-culture net 2 on the boat 1 from the bow 3 to the stern 11 and pass the boat 1 under the above-mentioned laver-culture net 2. The aforementioned boat 1 is further self- advanced and laver leaves 4 hung from the aforementioned net 2 are collected with an automatic laver harvester 10 provided on the boat 1. The harvested laver leaves 4 are then automatically contained in the boat 1.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method and apparatus for picking seaweed leaves from a cracked net.

``Prior art'' Conventionally, an ark was hidden under a cracked net, the longitudinal direction of the ark was set perpendicular to the longitudinal direction of the cracked net, and people rode on both sides of the ark and pulled the cracked net by hand. A method was used in which the ark was moved sideways in the long direction of the ark, and a rotary automatic plucking machine on the ark was used to harvest the seaweed leaves hanging down from the cracked net into the ark.

However, the above method is dangerous because the seaweed is collected in the winter, when the sea becomes turbulent and there are many accidents in which the ark capsizes. After collecting the fish, move it to the parent ship located far away from the crack net.
It takes time to transfer the collected seaweed leaves to the parent ship. In addition, it took time to unload the ark from the parent ship, and the ark was moved by hand (two people) in the long direction of the cracked net, which involved hard labor and danger.

``Problem to be solved by the invention'' The present invention does not require an ark and uses the parent ship directly to collect seaweed, thereby eliminating the risk of capsizing and other accidents, and efficiently and safely collecting seaweed leaves from cracked nets. The purpose is to

``Means for Solving the Problems'' In order to achieve the above object, the present invention involves making a ship dive under a cracked net, making the net self-propelled from the bow in the longitudinal direction of the net, and removing seaweed leaves hanging from the net on the ship. The method for collecting seaweed according to the above-mentioned invention, in which the bridge is removed from the ship and the ship is submerged under a cracked net. 2. Method for collecting seaweed according to the invention The method for collecting seaweed according to the first, second or third invention, respectively, in which the ship is the parent ship. The tip of the hull connected to the lower part is formed to be expandable and retractable, and a lifting device for the upper rudder and an automatic seaweed harvesting device are installed on the hull, and a propulsion device for the seaweed harvesting device is attached to the stern. The seaweed harvesting device propulsion device according to the fifth aspect of the present invention, which can be attached instead of the above, is constituted by the seaweed harvesting device according to the sixth aspect of the invention, which is an outboard motor that can be attached to the stern of the ship.

``Operation'' Therefore, the ship 1 is driven from the bow 3, the direction of the bow 3 is determined from one end of the crack net 2 toward the other end (longitudinal direction), and the crack net 2 is extended from the bow 3 to the stern 11 on the ship 1. The boat 1 is lifted under the cracked net 2, the boat 1 is made to move on its own, and the automatic seaweed harvesting device 10 installed on the boat 1 is used to pick up the details 2.
The seaweed leaves 4 hanging down are picked, and the seaweed leaves 4 are picked.
can be automatically accommodated in the ship 1.

In this case, the bridge 5 can be removed, the bow 3 can be tilted downward in the self-propelled direction, and the main ship 1' can be used as the ship 1.

"Example" A plurality of cracking rods 13.13 are arranged in two parallel rows, a cracking net 2 is stretched between the rows of the cracking rods 13.13, and both sides of the cracking net 2 are tied with tethers 14.14. At a seaweed cultivation site connected to cracking rods 13.13, the boat 1 is dived from the bow 3 under the detail 2 in the longitudinal direction of the cracking net 2 (in the row direction of the cracking rods 13.13), and the stern 11 is propelled. The device 12 is operated to self-propel in the longitudinal direction. The bow 3 has an upper rudder 6 on both sides 8 of the hull 7.
．． 8 and can be raised and lowered by means of a horizontal bin 15, and when self-propelled, the upper rudder 6 is tilted downward in the self-propelled direction as shown in FIGS. 1 and 4. This tilting is performed using a cylinder-based lifting device 9. At this time, the tip portion 7' of the hull 7 connected to the lower part of the upper rudder 6 is formed of a flexible expandable material such as rubber, and when the upper rudder 6 is tilted, It contracts and expands when the upper rudder 6 is raised (FIGS. 3 and 5). An automatic seaweed picking device 10 having a rotary rotating blade l○' perpendicular to the self-propelled direction is installed on the ship 1, and the device 10 touches the lower surface of the cracked net 2 and moves together with the ship 1. The seaweed leaves 4 hanging down can be picked. The main ship 1' can be used directly for the ship 1, and the bridge 5 can be removed. (not shown) is acceptable.

The self-propelled speed and the picking speed by the rotary blade 10' are adjusted. The shape of the upper rudder 6 may be pointed as shown in FIG. 2, or it may be trapezoidal with a tip edge 6' wider than the width of the crack net 2 perpendicular to the longitudinal direction of the crack net 2. . In the figure, 16 indicates the elevation guide rod of the upper rudder 6, 17 indicates the guide ring of the rod 16, 18 indicates the engine of the propulsion device 12, 19 indicates the propeller, and 20 indicates the stern 11.
This is the support rod for the crack net 2 installed in the.

"Effects of the Invention" Since the present invention is based on the method described above, there is no need to use an ark at the seaweed picking site, and the parent ship 1' is directly submerged under the cracked net 2 and is self-propelled by the propulsion device 12 at the stern 11. The seaweed leaves 4 hanging from the cracked net 2 can be collected safely and easily without the need for manpower to move the ship 1, and they can be stored directly in the parent ship 1', increasing the efficiency of the seaweed collection work. can be significantly improved.

Also, by tilting the bow 3 downward in the self-propelled direction, the ship l can smoothly dive under the crack net 2 without the risk of the crack net 2 getting caught on the bow, and the seaweed collecting work can be performed smoothly. I can do it.

[Brief explanation of drawings]

FIG. 1 is a side view showing the seaweed collecting method and device of the present invention;
FIG. 2 is a plan view of the crack net, FIG. 3 is a side view of the bow in a raised state, FIG. 4 is a side view of the bow in a tilted state, and FIG. 5 is a side view of the bow in a raised state. l...ship, 1'...main boat, 2...crack net, 3...bow,
4. Seaweed leaves, 5. Bridge, 6. Upper rudder, 7.
Hull, 7'... Tip part, 8... Both sides, 9... Lifting device, 10... Automatic seaweed picking device, 11... Stern, 12...
Propulsion device.

Claims (1)

[Claims] (1) Seaweed harvesting characterized by diving a ship under a cracked net, making the net self-propelled from the bow in the longitudinal direction, and picking the seaweed leaves hanging from the net on board the ship. Method. (2) The seaweed collecting method according to claim (1), wherein the bridge is removed from the ship and the ship is submerged under the cracked net. (3) Claim (1) in which the bow is tilted downward and the bow is self-propelled.
Or the seaweed collection method described in (2). (4) The seaweed collecting method according to claim (1), (2) or (3), wherein the ship is a parent ship. (5) The upper side of the bow is pivotably supported on both sides of the hull so that it can rise and fall freely, and the tip of the hull that connects to the lower part of the upper side is expandable and retractable, and automatic seaweed is installed on the lifting device of the upper side and on the hull. A seaweed collecting device equipped with a plucking device and a propulsion device attached to the stern. (6) Claim (5) in which the propulsion device can be installed instead of being installed.
) The seaweed collecting device described in ). (7) The seaweed collecting device according to claim (6), wherein the propulsion device is an outboard motor that can be attached to the stern of the ship.