JP2008220341A - Net handling apparatus of casting net - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a net handling apparatus for putting a folded net on a net stand so as to be housed by pulling the net to distribute from the central part with varying traction forces at each site while applying various movement forces to the net coming down from the net handling apparatus, subsequently fold the net by disposing the net having a width far wider than that of the hull of a boat. <P>SOLUTION: Net treating wheels are formed by partitioning a rotary shaft into sections by attaching a plurality of rings which are large in the center and small at the end of the shaft, fixing a plurality of rod-like articles having a concave angle toward the direction of rotation and a V-shaped traction unit to the corner to each of the sections to be laterally symmetric from the center with having an angle toward the direction of rotation, and providing a float traction portion on the port side and a sinker traction port on the starboard side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a net processing apparatus for use in netting work when lifting a net for a fish net used in a lathe main vessel.

  In the fishing line fishery, nets thrown into the sea to catch fish close the bottom immediately after being thrown, and then rushed quickly.

  At this time, in order to prepare for the next quick and trouble-free throwing net, the net lifting from the sea must be stacked and stored on the net base while being folded in order.

  This work is very important for carrying out a quick throwing network at the next operation, and therefore, a large number of workers are in charge of storing the net.

  The net that is usually lifted into the ship from the sea is first pulled from the sea by a net holer installed at the stern, and then pulled to a very high position by a netting machine suspended at the tip of a derrick boom or marine crane. From that position, it is lowered onto the screen.

  At this time, the net descending from the netting machine is completely sorted by the worker's hand between the bottom part of the bottom of the net and the floating part at the top of the sea side, and the middle part of the net is evenly scattered. And then store them on the screen in order while folding them back and forth.

  However, this netting work is more difficult than it looks on a ship that repeatedly swings at sea, and it is more dangerous than it seems.

  While pulling up a net with a width of several tens to hundreds of meters from the sea, it is folded while rolling so that it spreads as evenly as possible on the screen of a ship less than 10 meters. It is a work and the net contains water, so it has a considerable weight and is forced to carry out a very severe work requiring considerable power.

  Also, during stormy weather, the net swings violently due to the shaking of the ship, and when the wind is strong, the net coming down from the netting machine may be blown up or lifted, and the net that shakes greatly when grabbing the net There is also a lot of danger that the body will be swung around by the inertial force.

  If the lifting net goes further, you will have to continue working on the stacked nets, and there will be an increase in the number of hooks on your limbs and your feet on a soft net during your work. It is dangerous and requires a lot of force, so many workers have to be assigned.

  In recent years, floating traction devices and sash traction devices have been installed to wind the slats and sinkers of the mesh while pulling them exclusively, which reduces the work burden on both sides of the mesh. In addition, it is necessary to rely on the manual work of the workers to crawl the so-called medium net located between the float and the sink.

  Recently, although a net processing device that assists the conventional work of sorting and folding the nets that have been lifted and stored while being developed has been tested, it is still more effective than manual work by workers. Has not reached.

  The present invention analyzes and examines how the worker handles the net during these operations, and repeats the operation of unraveling the net while the worker distributes the left and right and the operation of bundling and pulling a certain part. Focused on that.

  That is, in order to continuously give the same action as the human work to the net descending from the netting machine, the following configuration is adopted.

  A net processing device is mounted that can move back and forth on a derrick boom attached to the rear part of the hull with appropriate strength, and that can turn freely, and that gives the force of expansion and contraction to the base.

  The float and sinker of the net descending from the netting machine suspended on a fishing crane or the like are pulled, and at the same time, the net is divided while being divided into left and right using the net processing device.

  In the present invention, the above-described operation is continuously performed to eliminate the twisting and twisting of the net and to be accommodated while spreading in the horizontal direction. By this method, the net is much wider than the width of the hull. Are distributed almost evenly, so that the net can be stored neatly on the screen.

  As described above, the present invention is always dangerous and requires a large number of workers to store the net, and by applying a force such as hydraulic pressure or electric force to the net, the same action as the conventional work is added to the net. It facilitates the work of storing the net, reducing the labor of workers and improving the work efficiency, and contributes to labor saving and improvement of safety.

  In addition, it is possible to rationalize and efficiently carry out the netting and storing work during the lifting net, which conventionally had to rely on the human power of a large number of workers, so that the work can be modernized.

  Furthermore, because the net coming down from the netting machine is forcibly retracted and stored, it is possible to set the position of the netting machine that had been set to a very high position so far, so that the top The center of gravity of the hull during the lifting net work, which was heavy, can be kept low.

  As a result of the above, it is possible to stabilize the hull balance and contribute significantly to improving the safety of the hull engaged in fishing.

  The present invention has the following structure as the best method for carrying out the invention.

  Attach a derrick boom that can be lifted and swiveled at the rear of the hull bridge.

  A trolley device for movement provided so as to be movable back and forth on the boom and to be stationary at a fixed position is attached to the derrick boom.

  The above-described trolley device is equipped with a suspension fitting provided so as to freely turn in any direction.

  A net processing device having a net processing wheel is suspended from the hanging metal fittings so as to be freely raised and raised.

  The netting wheel is divided into a plurality of sections that are allotted from the center by a split ring, and each section rotates a tow bar that has a concave angle with respect to the rotation direction and is provided with a V-shaped biting portion. The circumference is equally divided and attached with an angle in the direction.

  The tow bar is fixed with a smaller angle with respect to the rotation direction in the section closer to the center and a larger angle toward the outer section.

  The mesh processing wheel is connected to a rotating shaft rotatably attached to a hydraulic motor in a motor case, and the mesh processing wheel is rotatably provided by the rotation of the hydraulic motor.

  The above-described netting wheel is provided symmetrically from the center, and has a structure in which a sink induction roller is attached to the starboard end and a float guide roller is attached to the port end.

  Embodiments will be described below. FIG. 1 is a plan view of the present invention, FIG. 2 is a side view, and FIG. 3 is an enlarged explanatory view.

A moving rail 3 is formed by attaching a derrick boom 2 provided to the rear part 1 of the bridge so as to be able to be lifted and turned.

A main trolley 4 is mounted on the rail 3 so as to be movable back and forth on the rail 3 by a force such as hydraulic pressure or electric power.

  As shown in FIG. 1, an auxiliary rail 5 is mounted on the moving rail 3 in parallel with the moving rail 3, and the auxiliary trolley 6 attached to the rail 5 and the main trolley 4 are connected to improve the strength. You may plan.

  The trolley device 4 is pivotally attached with a suspension fitting 8 that is pivotably provided by expansion and contraction of the hydraulic cylinder 7.

  A frame portion 9 provided so as to be able to be raised and lowered is pivotally attached to the suspension metal fitting 8, and the frame portion 9 can be raised and lowered in the direction of arrow AA ′ by expansion and contraction of a hydraulic cylinder 10 provided at the lower portion of the suspension fitting 8. Is provided.

  A frame rod 12 provided with a roller bearing 11 at the tip is attached to both ends of the frame portion 9, and a motor case 13 having a hydraulic motor and a gear box is provided on the roller bearing 11 on the starboard side.

  The port side frame arm 12 is configured such that the roller bearing 11 is detachably provided by a known detachable fitting 14, and the tip of the arm portion is formed to be pivotable by a hydraulic cylinder 15 attached to the upper surface of the arm portion.

  A central ring 17 fixed with a spoke 16 is provided in the center, and auxiliary rings 18 having a smaller diameter than the plurality of central rings 17 are symmetrically provided on both sides of the base wheel 19 attached with the same spoke 16, respectively, on the port side. Is provided with a traction part 20 for a float and a traction part 21 for a sago on the starboard side.

  The central ring 17 and the auxiliary ring 18 are attached by spokes 16 fixed at a central angle divided into three equal parts with respect to the central axis 22.

  Between the center ring 17 and the auxiliary ring 18, an obtuse rod-like body 24 having a V-shaped traction part 23 in the middle part and having an obtuse bend angle in the rotation direction is arranged with the circumferential angle behind the rotation direction. It sticks to the end.

  Three obtuse bars 24 are attached at an angle of 120 degrees to the circumference to form a central traction section 25.

  Similarly, a V-shaped traction portion 23 is formed in the intermediate portion between the auxiliary ring 18 and the auxiliary traction portion 26 of the float traction portion or the sink traction portion, and has a sharper bending angle than the obtuse rod-shaped body 24 described above. Three of the provided acute-angle rod-like bodies 24 ′ are attached at an angle of 120 degrees with respect to the circumference in the same manner as described above to form the side traction section 27.

  FIG. 4 is an explanatory diagram of the net processing wheel.

  When the meshing wheel 28 rotates in the direction of the arrow α, the obtuse rectangular bar 24 attached to the center ring 17 and the auxiliary ring 18 is provided with an angle β with respect to the rotation direction, and is attached to the auxiliary ring 18 and the auxiliary ring 26. The sharp-angled rod-like body 24 ′ thus formed is attached with an angle γ.

  Accordingly, when the netting wheel 28 rotates, a force that moves from the center toward the outside acts.

  FIG. 5 is an explanatory diagram of a rod-shaped body.

  The rod-like body 24 is provided with an angle of Θ with respect to the straight line, and when this rotates, a force for moving from both sides to the traction portion 23 and concentrating in the groove works.

  The sharp rod 24 'having a large angle Θ has a greater collective force than the obtuse rod 24 having a small angle Θ.

  Therefore, when the net processing wheel 28 is rotated, the nets on the wheel 28 are gathered by the traction unit 23 while moving from the center toward both ends, but more nets move toward the end than the center. It becomes.

  By these actions, the network 30 coming down from the netting machine 29 is solved and processed so as to be averaged.

  The above-mentioned float puller 20 and sinker puller 21 are formed by connecting the spokes 16 of the auxiliary ring 26 with a straight pipe 31 and connecting the outer peripheral part of the auxiliary ring 26 and the straight pipe 31 with a pull bar 32. is there.

  The angle of formation of the tow bar 32 is attached in accordance with the shape of the float and the sink, and the central section 25 and the side section 27 and the float / sink retractor 20, 21 form the net processing wheel 28.

  The rotation shafts at the left and right ends of the mesh wheel 28 are mounted on the roller bearings 11, and the mesh wheel 28 is rotatably provided by the rotation of a hydraulic motor attached to the gear box 13.

  Float and sinker guide rollers 33 are provided on the inner front surfaces of the float pulling portion 20 and the sink retractor portion 21 of the mesh processing wheel 28 so as to have an upward angle with respect to the horizontal direction. The frame 34 is attached to the roller bearing 11.

  A guide bar 36 provided so as to be turnable by a hydraulic cylinder 35 is attached to the distal end portion of each frame arm 12.

  The guide bar 36 is formed in a triangular shape, and covers the front surfaces of the left and right floats and the slat retractors 20 and 21.

  A restraining frame 37 that controls the flow of the mesh 30 from above the mesh processing wheel 28 and suppresses the lifting of the mesh 30 is pivotally mounted on the frame portion 9, and the arrow BB ′ is supported by the hydraulic cylinder 38. It is provided to be freely rotatable.

  FIG. 6 is a plan view showing the use state, and FIG. 7 is a plan view showing the use state.

  When the net processing apparatus according to the present invention is used, the net 30 pulled from the sea by the net holer 40 at the rearmost part of the hull 39 is suspended at the tip of a marine crane or the like and guided to the netting machine 29 placed at a high place. Then, the net 30 coming down from the netting machine 29 is passed through the upper surface of the net processing wheel 28.

  At this time, it is preferable to rotate the net processing wheel 28 while pulling the floating portion with a separate floating pulling device 41 and similarly pulling the floating portion with the retractable pulling device 42.

  As a result, the rotational force of the mesh processing wheel 28 acts on the collective force of the mesh 30 of the rod-like body 24, divides and pulls the tangled mesh 30 and spreads the entire middle mesh while averaging it. 43 can be stored.

  At this time, the net 30 descending from the netting machine 29 is maintained at a constant approach angle by the action of the restraining frame 37, so that the resistance force of the net 30 applied to the net processing wheel 28 is substantially constant.

  For this reason, the amount of the net 30 aggregated in the V-shaped traction portion 23 of the rod-like body 24 is also equal, and the middle net portion can be divided and pulled on average, and the net 30 after processing is stored on the top 43 of the net. Is possible.

  At this time, if the whole 44 is continued to move back and forth gently on the moving rail 3, the net 30 is stored while being folded on the net 43.

Industrial applicability

  The net processing and storage work in which the present invention is used is the most delayed in mechanization, although the labor load and the risk are high, among the uplift net work in the current fishing net fishery, the safety due to the shift from manpower to mechanization There is a need to improve productivity and work efficiency.

  Therefore, when the net processing apparatus according to the present invention is adopted in a lathe main ship, mechanization can greatly improve the contents of the conventional lifting net work, and can greatly contribute to improvement of safety and reduction of work load.

  Note that the hydraulic circuit in the present invention is not shown.

  Plan view   Side view   Enlarged illustration   Explanation of net processing wheel   Illustration of rod-shaped body   Plan view in use   Usage side view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bridge rear part 2 Derrick boom 3 Moving rail 4 Main trolley 5 Auxiliary rail 6 Auxiliary trolley 7 Hydraulic cylinder 8 Suspension metal fitting 9 Frame part 10 Hydraulic cylinder 11 Roller bearing 12 Frame rod 13 Motor case 14 Detachment metal fitting 15 Hydraulic cylinder 16 Spoke 17 Central ring 18 Auxiliary ring 19 Base wheel 20 Float traction part 21 Sediment traction part 22 Central shaft 23 V-shaped traction part 24 Rod body 25 Central traction section 26 Auxiliary ring 27 Side traction section 28 Net processing wheel 29 Netting machine 30 Net 31 Straight pipe body 32 Tow bar 33 Guide roller 34 Guide bar 35 Hydraulic cylinder 36 Guide bar 37 Holding frame 38 Hydraulic cylinder 39 Hull 40 Net holer 41 Float towing device 42 Sediment towing device 43 Net base 44 Net processing device

Claims (3)

A pedestal mounted on the derrick boom at the rear of the hull is slidably mounted on a derrick boom, and the platform is lowered from a netting machine suspended on a derrick crane or the like using a net processing machine mounted on the pedestal. In the network processing device of the lathe net that is configured to be able to be stored in an orderly manner on the screen stand, while pulling the incoming network laterally,
A plurality of rod-shaped bodies each having a plurality of rings with a large center and a small end at the end of the rotation shaft and divided into sections, each section having a concave angle in the rotation direction and a V-shaped traction portion at the corner Attaching each section symmetrically from the center with a traveling angle with respect to the rotation direction, forming a net processing wheel by providing a float traction part on the port side and a slag traction part on the starboard side. The mesh processing of the swivel net is characterized by the fact that a part of the net is converged and pulled to the encroaching part while rotating and dispersing the net from the center to the left and right by rotating the processing wheel, so that it can be stored in an orderly manner on the net. apparatus. The reticulated net processing apparatus according to claim 1, wherein the concave angle of the rod-like body is provided at an obtuse angle in the central section and an acute angle in the end section. 2. A net processing apparatus for a lathe according to claim 1, wherein each section is provided with a travel angle by attaching a rod-like body to the front side on the central side and the rear side to the rear side in the rotational direction.

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