JP2875223B2 - Foraging machine in longline fishery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bait in a longline fishery, and more particularly, to a tuna longline fishery or the like, in which a branch line is tied to a trunk line extended from the hull of a fishing boat, and the branch line is attached to a hook at the tip of the branch line. Prevents the entanglement of branches and ropes when feeding baited bait to ensure the safety of baiting work, as well as the bait distance, rope formation, bait efficiency, bait cycle, burden on workers, etc. It relates to an improved feeder.

[0002]

2. Description of the Related Art In the tuna longline fishery, when a trunk line is thrown into the sea from a hull lancing machine, a fishing line at the tip of a large number of branch lines attached to the trunk line at appropriate intervals is maintained. They feed the bait and throw it at a predetermined location. This bait is usually performed about 3000 times in one rowing operation, and its quality is an important operation that greatly affects the catch.

[0003] Usually, the main ropes unwound by a line hauler are stored in a main rope storage box at the stern, and the rowing operation is performed from an early morning. In this littering operation, the littering operation is basically performed by hand, and as shown in FIG.
The snap 3 of the branch line 2 tied to the main line is placed on the main line feeding machine 4 side, the fishing hook 5 is fixed on the non-feeding machine side, the bait 6 is loaded on the fishing hook 5, and the riding of B is performed. personnel move Tonawa conveyor 1 comprising a pitch conveyor by operating the foot switch to one pitch at a time aft D.

[0004] The crew member C waiting for binding holds the snap 3 of the branch line 2 reaching the end on the lasso conveyor 1 in the right hand, and is pulled out from a trunk line storage box (not shown) by a feeder 4. The main rope 7 is grasped with the left hand, and the snap 3 is tied to the main rope 7 based on the branch rope connection instruction sound of the throwing indicator, and the stern end rope 2
Is held by the left hand so as to form a straight line without resistance. Then, the crew of B waiting for feeding is about 2 km from the feeding position.
The 50 mm place is held by the right hand and the rope is ported at about 30 degrees in the port direction in consideration of the eddy current caused by the screw of the hull. Usually, about 3000 branch ropes 2 are fed manually once.

[0005]

Since such a conventional feeding operation is based on a manual operation, it cannot be fed far away from the hull. The problem is that food loss is often high. Especially when feeding within 6m of the hull, the loss of food is high due to the long time of staying on the sea surface due to the effect of the screw of the ship, and more than 20% of the 3,000 feedings at a time Feeding within this 6m.
Furthermore, seabirds hooked on hooks often die, which is not preferable from the viewpoint of protection of the natural environment. In particular, tuna longline fishery is a pelagic fishery and cannot be carried out without the understanding of neighboring countries.

[0006] Further, in the conventional feeding operation, there is a limit to the improvement of the work efficiency, and it is difficult to continue feeding at an accurate place. There is a problem that the mental and mental burden is large. In addition, the trunk ropes 7 are often entangled with each other at the time of throwing, or the branch ropes 2 and the trunk rope 7 are often entangled with each other. Intense pitching and rolling makes the above-mentioned feeding operation particularly difficult.

In order to cope with the above, the applicant of the present application has previously disclosed in Japanese Patent Application Laid-Open No. 7-289128, on the stern side of a fishing boat, as shown in FIG. A motor 11 whose rotation angle, rotation direction and rotation speed of the output shaft can be adjusted, and a feeding arm 21 rotatably mounted on the output shaft of the motor 11 via a support rod in a substantially horizontal plane. A equipped feeder was proposed. The above motor 1
The lower cover provided on one of the lower portion, the input terminal 11a of the drive control signal to the motor 11, 11b is deployed. The feeding arm uses a gutter-shaped member having a U-shaped cross section.

According to such a feeder, the crew feeds the fishing hook of the branch line tied to the trunk line, places it on the feeding arm 21, and sets the branching tie of the line setting indicator (not shown). By tying the snap to the trunk line based on the landing sound and activating the feeder, the motor 1
Rotation of the feeding arm 21 in a substantially horizontal plane by the rotation force of 1;
When the motor 11 is suddenly stopped, the feeding arm 21 is suddenly stopped at the position indicated by the imaginary line in the drawing, the foraging is performed, and the feeding arm 21 is reversed in a substantially horizontal plane by the reverse rotation of the motor 11 after the feeding. Rotate to return to the original mounting position.

Further, a swing flange shaft protruding from a mounting base 12 fixed to a motor 11 via a support plate is rotatably inserted into an annular hole of a mounting bearing fixed to the hull side. By arranging the motor 11 so as to be able to swing inside or outside the hull, when the hull rolls, a pair of swing restraining shafts extending in the outboard direction from both sides sandwiching the swing flange shaft are provided on the hull side. The contact angle of the feeding arm 21 with respect to the sea surface is kept substantially constant, and the tilting of the baiting machine can be prevented.

However, since there are various lengths of branch ropes, if the stop time after feeding is always set to 0 seconds, the feeding is completed before the feeding arm 21 rotates backward and returns. If there is no branch line, the feeding arm 21
Is likely to be entangled with the branch line being fed outboard. In particular, when there is a strong wind or a gust, the outgoing branch line is blown by the wind, and such a branch line and the feeding arm often become entangled.

Further, the trough-shaped member having a U-shaped cross section used as the feeding arm 21 is difficult to place the bait, and in particular, since there is a wall in the bait direction, the bait comes into contact with the wall when baiting, and the bait operation is performed. May have an adverse effect on In addition, since the bait is thrown into the sea by rotating the feeding arm 21 in a substantially horizontal plane and suddenly stopping, there is a limit point in the distance over which the bait can fly, and it is not possible to fly the bait to a desired long distance.

Therefore, the present invention relates to the above-mentioned Japanese Patent Application Laid-Open No.
In addition to the improvement of the baiting machine proposed by No. 8, there is no danger that the feeding arm that rotates in the reverse direction after baiting will be entangled with the branch line that is being fed out, and the bait will be more distant when baiting than the conventional example. It is an object of the present invention to provide a feeder in a longline fishery that can fly up to a distance.

[0013]

According to the present invention, in order to achieve the above object, according to the present invention, a plurality of branch ropes fed on a hook are sequentially connected to a trunk line fed from a hull of a fishing boat. In long-line fishing, where the fishing boats
Prescribed in a substantially horizontal plane inside or outside the stern side
Feeding bait on fishhook by turning angle and sudden stop
And reverse after the set stop time has elapsed.
Longline fishery equipped with a feeding arm that returns to its original position by rolling
A feeder is provided.

According to the second aspect of the present invention, the fishing boat is disposed on the stern side of the fishing boat and is provided inside or outside of the hull via the mount .
A that can adjust the rotation angle, rotation direction, and rotation speed of the output shaft
A C servomotor; a feeding arm mounted on the output shaft of the AC servomotor via a support rod so as to be able to rotate and return by a predetermined angle; and a rotation angle, a rotation direction, a rotation speed, and a rotation angle of the output shaft. made by and a controller for setting a Soesaude downtime after Toesa, bait placed on Soesa arms are Soesa the hook, the Soesaude by the rotational force of the AC servomotor times
Feeding into the sea by sudden stop of the feeding arm due to rolling and sudden stop of the AC servomotor, after the set stop time elapses
The present invention further provides a feeder in a longline fishery in which the feeding arm is reversely rotated by the reverse rotation of the AC servomotor to return to the original placement position .

According to the third aspect of the present invention, the fishing boat is disposed on the stern side of the fishing boat and is mounted on the hull or outside of the hull via the mounting stand so as to be inclined at a predetermined angle to the starboard side or the port side with respect to the vertical axis, rotation angle of the output shaft, the rotational direction, and rotational speed is adjustable AC servo motors, the AC servo motor <br/> through the support rod to an output shaft of over motor to allow rotation and return movement of a predetermined angle A feeding arm mounted thereon, and a controller for setting a rotation angle, a rotation direction, a rotation speed, and a stopping time of the feeding arm after the feeding, wherein the fishing rod is fed and fed. the bait is placed on the arm, in the sea by a sudden stop of Soesaude by rotation and sudden stop of the AC servo motor from a substantially horizontal position of Soesaude by the rotational force of the AC servomotor position to facing obliquely upwards and Toesa, a after a lapse of a stop time that has been set Soesaude rotated in reverse by the reverse rotation of the servo motor to provide a throw food machine in longline fishing which is adapted to return to a substantially horizontal position.

Further, as a feeding arm, a horizontal bottom plate on which bait loaded on a hook is placed, a vertical plate erected on the side opposite to the bait feeding side of the horizontal bottom plate, and an upper end portion of the vertical plate A configuration using a member having a substantially L-shaped cross section composed of an attached anti-feeding side ear portion and an ear portion attached to the feeding side end of the horizontal bottom plate, and an upper portion of the AC servomotor Provided is a configuration in which a danger prevention frame is provided in contact with the upper surface of the cover to cover a flat portion of the feeding arm before feeding.

According to the feeder in the longline fishery,
And rotation of Soesaude by the rotational force of the AC servo motors, AC
The feeding arm is displaced from the starboard to port or port to starboard reference position with respect to the ship center line due to the sudden stop of the feeding arm due to the sudden stop of the servo motor, and the bait feeds the bait loaded on the hook. Can be. The feeding arm after feeding returns to the feeding position after a lapse of a stop time such as 0 second, 1 second, 2 seconds, or 3 seconds set in the controller in advance.

Further, since the baiting machine is mounted so as to be inclined by a predetermined angle with respect to the vertical axis, the bait arm before bait at a substantially horizontal position faces obliquely upward after baiting. Position, and the bait is blown diagonally upward.
Thereafter, the bait is sequentially fed so as to match the batting operation of the bobber, and the bait is continued by operating the push button switch.

Further, the bait placed on the horizontal bottom plate portion of the feeding arm is supported by a vertical plate erected on the side opposite to the bait side at the time of baiting, and there is no wall in the bait direction. The effect that the feeding operation can be performed smoothly can be obtained.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a specific embodiment of a feeder in a longline fishery according to the present invention will be described. FIG. 1 is a front view of a bull worktop 24 embodying the present invention mounted on the inside of a bull work top 24 which is a hull side member, as viewed from the bow side, FIG. 2 is a plan view of the same, FIG. a side view from 11 is an AC servomotor, it is covered with a motor cover 13. 12 is an AC servo motor 11
And 14 is a lower cover. This lower cover 1
Reference numeral 4 denotes input terminals 11a and 11b for driving control signals for the AC servomotor 11.

An upper cover 17 is provided on the upper surface of the mounting table 12.
The output shaft 18 protrudes above the upper cover 17, and the feeding arm 21 extends obliquely upward from a substantially horizontal position via a support rod 19 on the output shaft 18. Alternatively, it is mounted rotatably in a substantially horizontal plane. 1
Reference numeral 6 denotes a handrail gripped by an operator.

One of the features of this embodiment is that, as shown in FIG. 1, the feeder 20 is attached to the bulwark top 24 in a state of being inclined at a predetermined angle to the starboard side with respect to the vertical axis. It is in. The feeding arm 21 before feeding is in a substantially horizontal position shown by a solid line, and the feeding arm 21 after feeding is in a position facing obliquely upward on the port side as shown by a virtual line. The arrow A in FIG. 2 indicates the rotation direction of the feeding arm 21. The illustrated example shows an example in which the baiting machine 20 is attached to the starboard side at a predetermined angle, but when this baiting machine 20 is attached to the outside of the bull worktop 24, the baiting machine 20 has a predetermined angle on the port side. Install it at an angle. Or the feeder 20
Can be mounted vertically so that the feeding arm 21 rotates in a substantially horizontal plane.

Reference numeral 22 denotes a danger prevention frame. As shown in FIGS. 2 and 3, the danger prevention frame 22 is in contact with the upper surface of the upper cover 17 of the AC servomotor 11 and has a flat surface of the feeding arm 21 before feeding. It has a shape that covers the part. In FIG. 3, a part of the danger prevention frame 22 is cut out and displayed.

Reference numeral 23 denotes a bulwark mounting bearing. The bulwark mounting bearing 23 is fixed to a bulwark top 24 by means of a screw or the like, and is swingably inserted into an annular hole of the bulwark mounting bearing 23. A moving flange shaft 29 is fixed to the base 15 supporting the danger prevention frame 22. On both sides of the swing flange shaft 29, a pair of swing stop shafts 30, 30 having one end fixed to the base 15 and extending in the outboard direction are protruded.

FIG. 4 is a plan view of the feeding arm 21, FIG. 5 is a front view thereof, and FIG. 6 is a side view thereof. The feeding arm 21 is fixed to the mounting disk 31 and the mounting disk 31. Horizontal bottom plate 32
And a vertical plate 33 erected from the anti-feeding side of the horizontal bottom plate 32
And an ear portion 34 provided at the upper end portion of the vertical plate 33 on the non-feeding side, and an ear portion 35 provided at the feeding side end portion of the horizontal bottom plate 32. Are substantially L-shaped. The bait loaded on the hook is placed on the horizontal bottom plate 32 to prepare for baiting described later.

In the above embodiment, the example in which the baiting machine 20 is mounted inside the boat is described. However, the baiting machine 20 may be mounted so as to be located outside the boat. A controller for driving the AC servomotor 11 and a waterproof push-button switch for turning on and off the controller are provided at appropriate positions of the feeder 20.

The operation of this embodiment having such a configuration will be described with reference to FIG. First, as shown in FIG. 7, the crew of A places the snap 3 of the branch line 2 to be connected to the trunk line on the lasso conveyor 1 on the trunk line feeder 4 side, as in the prior art, and
Is fixed to the non-feeding machine side, bait 6 is loaded on the fishing hook 5, and the crew of B operates a foot switch to constitute a pitch conveyor.
The lasso conveyor 1 is moved in the stern direction D by one pitch.

Next, the crew member C waiting for binding holds the snap 3 of the branch line 2 reaching the end on the lasso conveyor 1 in the right hand and draws it out of the trunk line storage box (not shown) by the feeder 4. The main rope 7 to be snapped is gripped by the left hand, and the snap 3 is connected to the main rope 7 based on the branch rope connection instruction sound of the setting indicator.

At this time, the crew of B is required to
The branch 2 reaching the uppermost end is taken out from the conveyor, and the bait 6 loaded on the fishing hook 5 is placed on the horizontal bottom plate 32 of the bait arm 21. C based on the binding sound
After the crew attaches the snap 3 to the trunk rope 7, immediately presses the on / off push button switch of the controller attached to the feeder 20 to drive the AC servomotor 11. Note that, after the crew of C attaches the snap 3 to the trunk rope 7, the crew of B may quickly place the bait 6 on the feeding arm 21.

[0030] and the rotation of Soesaude 21 by the rotational force of the AC servo motor 11, Soesaude 21 by a sudden stop of Soesaude 21 by sudden stopping of the AC servo motor 11 with respect to the ship center line 1/3 rotation 120 °, that is, displaced from the 60 ° starboard position to the 60 ° port reference position as shown by arrow F, and bait the bait 6 loaded on the hook 5 at the 60 ° port reference position. Can be. At this time, as shown in FIG. 1, since the baiting machine 20 is mounted so as to be inclined by a predetermined angle with respect to the vertical axis, the baiting arm 21 at the substantially horizontal position before baiting is used. The rest is located diagonally upward. The present invention can also be used by mounting the feeder 20 vertically so that the feeding arm 21 rotates in a substantially horizontal plane.

After the feeding arm 21 has suddenly stopped feeding, the feeding arm 21 returns to the original feeding position after the elapse of the stop time set in the controller. This stop time can be adjusted to an arbitrary time such as 0 second, 1 second, 2 seconds, 3 seconds, and the like. That is, after the branch line 2 having a predetermined length is thrown, the feeding arm 21 is stopped for a time required for the reverse rotation to return to the original feeding position. Thereafter, the bait 6 is sequentially fed so as to match the batting operation of the batting machine, and the push button switch is operated to continue the baiting.

In addition, the bait placed on the horizontal bottom plate 32 of the feeding arm 21 is a vertical plate 3 standing on the opposite side of the bait when feeding.
3 is provided only at the feeding side end of the horizontal bottom plate 32, and the ear portion 35 for preventing the falling of the bait is provided, so that the conventional feeding arm having a U-shaped cross section is provided. Thus, there is no wall in the feeding direction, and the feeding operation can be performed smoothly.

[0033] with the AC servomotor 11 is smoothly smooth rotation even in a high speed region is obtained, the rotation angle and the rotation direction and the rotation speed is freely adjustable der of the output shaft 18
Ri, the controller of the AC servo motor 11,
The feeding arm 21 is accelerated and rotated by rotating the feeding arm 1/3 from the placement position on the feeding arm 21, that is, the feeding start position, and the AC servomotor 11 is stopped suddenly. The arm 21 is suddenly stopped for feeding, and after the feeding is stopped, the feeding is stopped for a predetermined time, and then the feeding arm 21 is again rotated by the reverse rotation of the AC servomotor by 1/3 rotation so as to return to the original state. It returns to the placement position, that is, the feeding start position. The direction and speed of rotation of the feeding arm 21, the throw angle with respect to the ship center line, and the throw distance can be arbitrarily changed depending on the state of the wind and the waves.

As a mode of operation when the hull is in a calm state and in a rolling state, as described above, a pair of rocking stop shafts 30 extending on the both sides of the rocking flange shaft 29 and extending outboard from the support plate 28 as described above. , 30 are in contact with the base of the bulwark mounting bearing 23 during rolling of the hull and
1 is kept substantially constant with respect to the sea surface,
Is prevented from being excessively tilted.

The placement position of the feeding arm 21 when the bait 6 is placed is the position of the feeding arm 21 at the start of feeding, and the rotation direction of the feeding arm 21 is such that the feeding machine 20 is mounted on the ship. It is clockwise when mounted and counterclockwise when mounted outboard. Therefore, when the wind direction is from the port side in a rough sea, the feeding direction may be changed to the starboard side. Furthermore, the placement position of the bait 6, that is, the feeding start position, can be appropriately changed depending on the state of the sea or the wind in order to throw the branch rope 2 at the reference throwing angle.

When the on / off push button switch of the controller is turned off, the feeding arm 21 becomes free. In this free state, the feeding arm 21 is rotated to change the position of the feeding arm 21 at the start of feeding. After arbitrarily setting, by turning on the push button switch, the placement position of the bait 6 on the feeding arm 21 can be changed, and at the same time, the feeding position of the bait 6 can be changed. Also, the feeding position and distance of the bait 6
Adjustment is also possible by the rotation angle and rotation speed of the output shaft 18 of the AC servomotor 11.

By feeding the bait 6 from the placement position by acceleration of 1/3 rotation and returning to the placement position by reverse rotation at 1/3 rotation deceleration, the bait 6 is thrown at the reference throwing angle. Bait and A
The feeding cycle in the high efficiency state of the C servomotor is shortened so that a margin time is provided to reduce the fatigue of the crew. Further, by providing a danger prevention frame 22 having a shape in contact with the upper surface of the upper cover 17 of the AC servomotor 11 to cover the flat portion of the feeding arm 21 before feeding, danger to crews is prevented. be able to.

[0038]

As described above in detail, according to the feeder according to the present invention, the feeding arm is stopped at a predetermined rotation angle and rotation speed by the rotation force of the AC servomotor , and then suddenly stopped. By doing so, it becomes possible to feed the bait loaded on the fishhook far away from the hull, and it is possible to perform bait in a good rope condition. And the feeding arm after feeding returns to the feeding position after a predetermined stop time set in the controller in advance, so if the branch rope has various lengths, strong winds or gusts may occur. Even in some cases, it is possible to solve the problem that the feeding arm is entangled with the branch line that is extended outboard.

The bait placed on the horizontal bottom plate of the feeding arm is supported by a vertical plate erected on the anti-feeding side,
In addition, since there is no wall in the feeding direction, the bait is easier to place than a feeding arm composed of a gutter-shaped member having a simple U-shaped cross section, and an effect that the feeding operation can be performed smoothly is obtained.

Further, since the foraging machine itself is mounted so as to be inclined at a predetermined angle with respect to the vertical axis, the feeding arm in the substantially horizontal position before foraging faces obliquely upward after foraging. With this, the bait is drawn obliquely upward in a parabola, so that it is possible to fly the bait to a desired long distance.

The feeder according to the present invention has no difficulty in feeding the feed to seabirds, reduces the loss rate of the feed and provides a preferable feeder from the viewpoint of protecting the natural environment. In addition, the work efficiency is improved as compared to the conventional manual feeding, and even if the feeding cycle becomes longer,
There is a great effect that the mental burden is reduced.

Even when the hull rolls, the elevation angle of the feeding arm with respect to the sea surface is maintained substantially constant by the action of the pair of rocking stop shafts extending outward from both sides of the rocking flange shaft. Excessive tilting of the feeder can be prevented. Improvement of various items of feeding work, such as rope formation, entanglement, damage to seabirds, feeding, feeding distance, feeding at long distances, work efficiency, feeding cycle, burden on workers, etc. can do.

[Brief description of the drawings]

FIG. 1 is a front view of a state in which a feeder embodying the present invention is mounted in a ship, as viewed from a bow side.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a side view as seen from the starboard side in FIG. 1;

FIG. 4 is a plan view of a feeding arm used in the embodiment.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is a schematic diagram showing a feeding method during a rowing operation in a longline fishery according to the present invention.

FIG. 8 is a front view of a state in which the feeder according to the prior application of the present invention is mounted in a boat, as viewed from the bow side.

FIG. 9 is a schematic diagram showing a method of feeding during a longline fishing operation in a conventional longline fishery.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... AC servo motor 12 ... Mounting stand 13 ... Motor cover 14 ... Lower cover 16 ... Handrail 17 ... Upper cover 18 ... Output shaft 19 ... Support rod 20 ... Feeding machine 21 ... Feeding arm 22 ... Danger prevention frame 23 ... Bullwork mounting bearing 24 Bullwork top 28 Support plate 29 Oscillating flange shaft 30 Oscillating stop shaft 31 Mounting disk 32 Horizontal bottom plate 33 Vertical plate 34, 35 Ears

Claims (5)

(57) [Claims] A fishing line is provided on a trunk line extended from the hull of a fishing boat.
Multiple branches and ropes fed to the needle are tied in sequence and thrown into the sea
In a longline fishery, the stern side of the fishing boat is placed inside or outside the hull in a substantially horizontal plane.
Bait baited on a fishhook by a predetermined angle of rotation and sudden stop
Feed and after the set stop time has elapsed
Equipped with a feeding arm that returns to the original position by reverse rotation.
A feeder in the longline fishery characterized by: 2. A longline fishery in which a plurality of branch lines fed on a hook are sequentially connected to a trunk line extended from a hull of a fishing boat and then dropped into the sea. through the mount is deployed outside the hull or within the hull, the rotation angle of the output shaft, the rotational direction, and rotational speed is adjustable AC servomotor, the supporting rod to an output shaft of said AC servo motor <br/> motor A feeding arm mounted so as to be capable of rotating and returning at a predetermined angle through the arm, a rotation angle of the output shaft,
A controller for setting a rotation direction, a rotation speed, and a stopping time of the feeding arm after the feeding, wherein the bait loaded on the fishing hook and placed on the feeding arm is rotated by an AC servomotor. and Toesa the sea by a sudden stop of Soesaude by rotation and sudden stop of the AC servomotor Soesaude by, by reversely rotating the Soesaude by reverse rotation of the AC servo motor after a lapse of a preset stop time A feeder in a longline fishery, wherein the feeder is returned to its original position. 3. A longline fishery in which a plurality of branch lines fed to a hook are sequentially connected to a trunk line extended from a hull of a fishing boat and then dropped into the sea. An AC servo that is installed outside the hull or inside the hull via a mounting base and is inclined at a predetermined angle to the starboard or port side with respect to the vertical axis, and is capable of adjusting the rotation angle, rotation direction, and rotation speed of the output shaft. A motor, a feeding arm mounted on the output shaft of the AC servomotor via a support rod so as to be able to rotate and return at a predetermined angle, and a rotation angle, a rotation direction, a rotation speed, and a bait of the output shaft. after become comprises a controller for setting the stop time of Soesaude, bait placed on Soesa arms are Soesa the hook, AC
And Toesa the sea by rotation and sudden stop of Soesaude by sudden stopping of the AC servo motor from a substantially horizontal position of Soesaude by rotational force of the servo motor position to facing obliquely upward, the stop time set A feeder in a longline fishery, wherein the feeding arm is reversely rotated by a reverse rotation of an AC servomotor to return to a substantially horizontal position after a lapse of time. 4. As a bait arm, a horizontal bottom plate on which bait loaded on a hook is placed, a vertical plate erected on the opposite side of the horizontal bottom plate from the bait, and an upper end portion of the vertical plate. The longline according to claim 2 or 3, wherein a section formed by the attached ear on the non-feeding side and the ear attached to the end of the horizontal bottom plate on the feeding side has a substantially L-shaped section. Feeder in the fishery. 5. A bait in a longline fishery according to claim 2 , wherein a danger prevention frame is provided in contact with an upper surface of an upper cover of the AC servomotor to cover a flat part of a bait arm before baiting. Machine.