Hauling auxiliary drum device and hauling method

Abstract

This net-lifting auxiliary roller unit 10 is arranged in an intermediate part of a tilting mast 13 of which the top is attached with a net-lifting machine 12 and guides the fishing net 14 lifted by the net-lifting machine 12, wherein the unit is equipped with a suspension support member 17 of which the top end 16 is coupled with the intermediate part of the tilting mast 13, a base member 19 which is tiltably attached to a bottom part of the suspension support member 17 through a support pin 18, a cylindrical roller main body 21, and side plates 22, 23 which are supported on both ends of the main body 21 and form a pair, further the unit is equipped with a flanged roller 24 which is rotatably attached to the base member 19 through a shaft part 20 in a cantilevered state and a hydraulic cylinder 25 of which the one end is attached to the suspension support member 17, and furthermore the unit has a link mechanism 25a which tilts the base member 19 to the suspension support member 17. The invention provides a net-lifting auxiliary roller unit capable of safely conducting loading work of a fishing net in a short time, even in stormy weather, and capable of improving stability of a ship, and to provide a net-lifting method.

Description

technical field [0001] The present invention relates to a net lifting auxiliary roller device used when pulling up a fishing net thrown into the sea by a net lifting machine installed at the tip of a tilting mast, and a net lifting method using the same. Background technique [0002] Previously, since the operation of pulling up the fishing net required many operators and was a heavy operation, a net lifting machine and its operation method (such as Refer to Patent Document 1: Japanese Patent Laid-Open No. 2000-350535 (FIG. 1, FIG. 3)). [0003] However, for example, on overseas reeling fishing boats, to use the net hauler (net unscrambler) to lower the fishing net and stack it on the specified position of the net platform (part of the deck), it is necessary to tilt the net hauler to the top. The tilting mast of the net lifter is used to unfold the fishing nets in sequence while stacking the fishing nets from the bow side to the stern side. Therefore, when starting to stac...

AI Technical Summary

Problems solved by technology

In this case, the operation of stacking fishing nets cannot be carried out smoothly, it takes time, and sometimes it becomes a dangerous operation in some cases.

Moreover, because the center of gravity of the net hoist and the tilting mast is relatively high, the problem of poor stability of the ship arises.

[0006] There is also a proposal to set up a linear guide mechanism that moves the net hauler from the top end of the mast to the middle to move the position of the net hauler. However, if the linear guide mechanism is installed at the top of the tiltable mast, it will cause The overall center of gravity of the ship is high and the hull is unstable

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