JPH036770B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention automatically separates the main line from the main line in relation to pulling up the main line in pearl cultivation. This invention relates to a main line winding device for a main line used in pearl farming, which reliably winds up a net.

(Conventional technology) In pearl farming, aquaculture nets were suspended in the sea by hanging hanging lines at appropriate intervals from a main line attached to a float. While pulling the rope, the ship was moved forward little by little, and the sling was pulled up by hand.

With this method, thousands of aquaculture nets each day, weighed down with seaweed and barnacles, must be pulled out by leaning over the side on an unstable ship.
The work is hard and often causes back pain.Also, compared to the thinness of the suspension lines, the aquaculture nets and suspension lines tend to have seaweed and other materials attached to them. The current situation is that the work of lifting the fish by hand continues despite the added weight, and no technical means have yet been taken to solve this problem.

(Problem to be Solved by the Invention) However, when attempting to pull up such a conventional main line with one roller as the ship moves forward, it is necessary to There were problems in that the rollers were slippery due to the seaweed attached to them, and the rollers were bitten by shellfish, etc., which hindered the work of pulling up the aquaculture nets.

(Means for Solving the Problems) This invention was made by focusing on the above problems, and it is a method of automatically pulling a suspension line from the main line using a roller as the ship moves forward, unlike in the past. By reliably hoisting the aquaculture net by separating it into two parts, it was possible to improve work efficiency and solve this problem.

Hereinafter, this invention will be explained with reference to the drawings.

Regarding FIG. 1, 1 and 2 are rotation axes,
To transmit power by changing the direction of the rotating shafts 1 and 2 to the angle θ shown in Fig. 4, fix the two prongs A and B to the central tips of the rotating shafts 1 and 2, and A and B are connected by a universal joint 3 which is rotatable about mutually orthogonal pins 4 and 4' as pivots. 5 and 6 are side plates provided on the left and right, one side plate 5 is fixed to the rotating shaft 1 side, and the other side plate 6 is fixed to the rotating shaft 1 side.
is loosely fitted onto the rotating shaft 2, and is formed so that it can slide by pressing the side plate 6 with a spring 7 wound around the same shaft 2. Reference numerals 8 and 9 denote roller blades, and a plurality of roller blades are provided facing each other and protrude inward from the inner surfaces of the side plates 5 and 6, and are fixed to the rotating shaft 1.
An insertion fitting 11 having an insertion opening 10 is fixed to the inner edge of the roller blade 8 provided on the inner surface of the roller blade 8, and the inner edge of the roller blade 9 protruding from the other side plate 6 is inserted into the insertion opening 10. Take it off. Reference numeral 12 denotes a gap, and the gap 12 is widened or narrowed between the inner edges of the left and right roller blades 8 and 9 by rotation with the rotating shafts 1 and 2. 13 is a pulley whose rotation is transmitted by a belt and 14 by a motor 15. Reference numerals 16 and 16' are made of metal and support and rotate the rotating shafts 1 and 2. 17 is the main line, which has a float attached. Reference numeral 18 denotes a suspension line, to which a culture net 19 is attached to the lower end and is suspended from the main line 17 at a constant interval. Reference numeral 20 denotes a roller, which is attached to the hull 21 and moves the hull 21 forward while pulling the main rope 17 together. 22
is an automatic water pressure mother of pearl vacuum cleaner installed inside the hull 21.

(effect) Next, the operation of this invention will be explained.

When the hull 21 is moved forward while pulling the main line 17 forward with a roller 20 attached to the pearling hull, the hanging line 18 is hoisted up along the main line 17 without being bitten by the rollers 20.

In this case, the rotary shafts 1 and 2 are rotated by the drive of the motor 15, and the rotary shafts 1 and 2 are rotated by θ as shown in FIG. As a result, the gap 12 between the inner end surfaces of the roller blades 8 and 9 provided on the inner surfaces of the side plates 5 and 6 becomes wider or narrower (FIGS. 2 and 3). Therefore, only the hanging wire 18 to be hoisted is once caught in the gap 12 between the blades 8 and 9 (Fig. 2), and then, by the rotational force of the rotating shafts 1 and 2, it is wound around the upper surface of the blade and is wound up. By changing the angle of the rotating shaft 2, both blades 8 and 9
Both inner end surfaces (Fig. 3) of the vacuum cleaner 2 will expand, making it possible to take out the hanging wire.
Seaweed, sea squirt,
After removing barnacles, parasites, etc., the aquaculture net 19 is sent out into the sea together with the main line 17 again.

(Effects of the Invention) As described above, the present invention connects the centers of rotating shafts with a universal joint, attaches side plates to the left and right rotating shafts around the universal joint, and attaches side plates to one of the rotating shafts. A side plate is slidably fitted onto the other rotating shaft, and a spring is wound around it so as to press it, and a plurality of roller blades are arranged oppositely on the inner surfaces of the left and right side plates, and the gap between the blades is By rotating the rotating shaft, the angle of the rotating shaft can be changed to narrow or widen it, gripping the hanging line, winding it up, and then releasing it. This is different from the conventional method of pulling up the hanging line by hand. It has the unique feature of significantly reducing the labor force and improving the hoisting work efficiency.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the hanging wire lifting device of the present invention;
2 and 3 are front views showing the state of movement of the roller blades, FIG. 4 is an explanatory view showing the state of movement of the rotating shaft of the present invention, and FIG. 5 shows the arrangement state of the hanging wire pulling device of the present invention. FIG. 6 is a front view showing a state in which the suspension wire pulling device of the present invention is attached to the hull of the ship.

Claims (1)

[Claims] 1. Fix the bifurcated pieces A and B to the inner ends of the left and right rotation shafts 1 and 2, and use pins 4 and 4' to rotate the bifurcated pieces A and B so that they are perpendicular to each other as pivots. The rotary shafts 1 and 2 are integrally attached to both ends of the universal joint 3 with the joint 3 as the center, and one of the rotary shafts 1 is attached around the joint 3 as a center.
A side plate 5 is fixed to the rotating shaft 2, and a side plate 6 is fixed to the other rotating shaft 2.
The spring 7 is wound around the spring 7 so that it can be loosely fitted and slid on the shaft 2, and a flexible joint is provided on the inner surface between the left and right side plates 5 and 6 so as to be parallel to the rotation axis and of the same length. The base ends of the separate roller blades 8 and 9 are fixed to the inner surfaces of the side plates 5 and 6, respectively, and are formed to protrude linearly inwardly, and one blade 8 has an insertion opening 10. Fixing the insertion fitting 11 having
By inserting and removing the inner end of the other blade 9 into and from the insertion opening 10, the blade with a gap 12 formed between the inner ends of both blades 8 and 9 is placed on the inner surfaces of the both side plates at a predetermined distance. 1. A main line hoisting device for a main line in a pearl work boat, characterized in that a plurality of pieces are attached in a circular ring shape in a vessel and can be expanded and narrowed in relation to the rotation of the rotating shafts 1 and 2 and the adjustable joint 3.