JP2003000100A - Round haul net and operation method by using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a round haul net having a reduced cost, capable of reducing the equipment and the manpower, and capable of achieving an efficient operation, and further to provide an operation method by using the round haul net. SOLUTION: The reticulation 40 of a tunnel net part within a prescribed range at the hauling side is formed larger than the reticulation 40 of the tunnel net part at the fish-catching side except the range in the tunnel net part, and a pursing line 42 is arranged from the fish-catching side of a sinker side edge part 9 to the hauling side over the length shorter than the whole length of the sinker side edge part. The end part at the hauling side of the pursing line 42 is joined to the corresponding position of the sinker side edge part 9 corresponding to the end part at the hauling side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary net and an operating method using the net, and more particularly to a net suitable for catching a school of fish with a long net main body and an operating method using the net. .

[0002]

2. Description of the Related Art Conventionally, as a type of fishing method, a net is installed in a circle so as to surround a school of fish, and the bottom of the net is tightened to prevent the school of fish from escaping from below. The purse seine fishing method for catching

FIG. 17 shows a lathe 1 used in such a net fishing method. The lathe 1 has a long rectangular net body 2 having a substantially rectangular shape. 2 is
It is divided into a large section 2a, a net section 2b and a fish catching section 2c.

At the upper end portion of the net body 2 in FIG. 17, a plurality of floats 4 for imparting a constant buoyancy to the net body 2 are provided.
It is arranged at a predetermined interval in the longitudinal direction.

On the other hand, at the lower end portion of the net body 2 in FIG. 17, a sink 5 for immersing the net body 2 in the sea by applying a certain gravity to the net body 2 is provided.

Therefore, in the sea, the net body 2 is
It is possible to stand with its end on the sinker 5 side facing down and the floater 4 side facing up.

Therefore, the net body 2 can be stretched in a cylindrical shape around the school of fish as shown in FIG. 18, so that the school of fish can be caught while surrounding the school of fish.

At the end of the mesh body 2 on the sink 5 side,
A plurality of annular purse rings 7 are arranged at predetermined intervals in the longitudinal direction via a loop suspension rope 11.

A long string-like purse line 8 is passed through the purse ring 7, and the purse line 8 includes the purse side including the end portion of the net body 2 on the purse 5 side. By squeezing the edge portion 9, it is possible to prevent the school of fish from escaping from the surrounding net.

At the end of the net body 2 on the large side,
A string-shaped large rope 10 is provided for applying a traction force to the net body 2 to carry out a net.

Further, various kinds of ropes such as a bow drawing rope 12, a moya rope 13 (see FIG. 20) and a bow float rope 14 are arranged on the net body 2 as required. There is.

The operation using the lathe 1 having such a structure is performed by a fishing boat 16 equipped with various equipment shown in FIG.

The fishing boat 16 is equipped with a recco boat 17 as a means for casting nets.
Is designed to secure a predetermined casting position on the sea.

Further, the fishing boat 16 serves as a net fishing means.
It is equipped with a large winding winch 18 for pulling a large rope, a bow float / moy winch 19 for operating a tow rope, and a bow standing roller 21.

Further, the fishing boat 16 uses a purse winch 22 for operating the purse line 8, a standing type davit 23, a winding winch 24, and a swivel wire as means for squeezing the sinker side edge portion 9. The reel 25 is provided.

In addition to the above, the fishing boat 16 includes a net hauler 26 as a net netting means, a net handling machine 28 as a net netting and tidying means, and a side hauler 29 as a fish tightening means.
And so on.

Next, when the fishing boat 16 is operated using the above-mentioned lathe 1, first, as shown in FIG. 20, a leech boat 17 for assisting the casting net, a moyara 13, and a bow float. Attach the rope 14, bow bow 12 and perspective line 8 and tow them to see the chance of net casting. Then, when the casting net is started, after releasing the stopper hook of the mist rope 13, the recco boat 1
The boat 17 is held in the casting position by moving the boat 7 backward.

Next, the fishing boat 16 is circumferentially advanced so as to surround the fish school 6 while unwinding the lathe 1 from the ship. At this time, the recco boat 17 is stationary at a predetermined casting position.

When the fishing boat 16 completes its orbit around the school of fish 6 and approaches the recco boat 17 as shown in FIG. 21, the fishing boat 16 stops moving. At this time, the net body 2 of the lathe 1 is in a state of surrounding the fish school 6 in a tubular shape.

Next, the moyamo rope 13 and the bow float rope rope 1
4, receiving the respective ends of the bow drawstring 12 and the purse line 8 from the recco boat 17 to the fishing boat 16 side, the purse line 8 on the winch 24, the bow drawstring 12 on the bow standing roller 21, and the bow float. The rope 14 is connected to each of the winch 19 which also functions as a float.

After connecting the ropes, the recco boat 1
Release the stopper hook corresponding to each rope of 7,
The connection between the lathe 1 and the recco boat 17 is released. This completes the preparation for the subsequent winding of the purse line 8 and the net.

Then, in order to wind the purse line 8, as shown in FIG. 22, an auxiliary ship (not shown) is arranged on the back side of the fishing boat 16 facing the arrangement side of the lathe 1,
The attached boat and the fishing boat 16 are connected by a back row rope 30.

After connecting the fishing boat 16 and the accessory boat, while carrying out back rowing in which the accessory boat advances in the direction opposite to the position where the lathe 1 is arranged, as shown in FIG.
The winding operation of the purse line 8 is performed by 4. As a result, it is possible to prevent the fishing boat 16 from overturning in the arrangement direction of the nets due to the weight of the nets 1 and the school of fish 6 when the purse line 8 is wound or the nets are caught.

When the purse line 8 is rolled up, the sinker-side edge portion 9 of the net body 2 is squeezed by the purse line 8 like a purse string, and thus surrounds the school of fish 6. The net body 2 is deformed from a tubular shape to a shape in which the opening on the bottom side is gradually closed. Therefore, it is possible to catch fish while preventing the school of fish from escaping from the bottom of the lathe 1.

Then, the winding of the purse line 8 is continued, and when the purse ring 7 reaches the davit 23, the davit 23 is tilted down and the purse ring 7 is drawn into the ship.

Next, after moving the float end on the fish catching side to the starboard side in FIG. 23, the stopper rope 31 is connected to the large side and a stopper hook is hooked. Then, after passing the lifting net guide rope 32 through the netting machine 28 and the net hauler 26, this is connected to the large side end of the net body 2.

Further, after the large rope 10 is removed from the large-side end of the net body 2, the net hauler 26 is moved to the starboard side as shown in FIG. 24 while winding the fishing net guide rope 32.

In this state, the winding of the fishing net guide rope 32 is continued, and when a strong tension is applied to the guide rope 32, the stopper hook with the stopper rope 31 is released.

After releasing the stopper hook, the net is started. At this time, the fishing side is tied up and the rope 12
And pull out the bow float rope 14 from the winch 19 which also serves as a float.

As shown in FIG. 25, in the fishing net operation, the fishing gear caught by the net hauler 26 and the net handling machine 28 is arranged on the hull so as not to hinder the next casting. At this time, as the hauling progresses, the stern-side loop suspension rope 11
From then on, the net hauler 26 pulls it and applies tension.
Due to this tension, the fastening state between the ring suspending rope 11 and the purse ring 7 is released, and the loop suspending rope 11 is separated from the purse ring 7. The detached loop hanging rope 11 is lifted on the hull together with the floating rope 14.

Then, the chain suspending rope 11 hoisted on the hull is sequentially connected to the purse ring 7 set at the lower part of the stern side hauler 29.

Next, as shown in FIG. 26, when the fish is tightened, the net cloth 2 for leaving the net just enough for tightening the fish is used.
Stop the fishing net according to 6. At this time, how much net material should be left is appropriately determined according to the catch amount and the like.

After stopping the lifting net by the net aura 26, the end of the net (the net main body 2) on the sinking side is moved to the side aura 29.
By operating the side hora 29
The nets are taken into the ship in order from the sinker side end to the float side end. Then, the purse line 8 is removed from the purse block, and the purse davit is stored.

Next, when fish is fetched, as shown in FIG. 27, the carrier 33 is positioned at the opposite position across the net of the fishing boat 16, and the carrier 33 first moves the net body 2 from the sea surface. Lift up the float side end of and tie it to the port side. Then, the fishing boat 16 and the carrier 33 are connected by the moy rope 13, and at the same time, backboating is performed on the carrier 33 in the opposite direction to the fishing boat 16. As a result, the distance between both ships can be appropriately maintained. At this time, the side hora 29
The fishing net according to is continued until the density of the school of fish 6 becomes such that fish can be drawn. Then, when the density of the school of fish becomes high, the fish are taken into the carrier 33 by the scoop net 15.

Finally, when preparing for re-casting after catching, first, the side catcher 29 is reversed by separating the end of the net body 2 on the catching side from the fishing boat 16 side, and the carrier 33
Is released from the fishing boat 16 after releasing the end on the float side of the net body 2 secured to the port side except for one place. As a result, the net cloth hauled by the side haulers 29 is pulled out into the sea as shown in FIG. Then, the net cloth 26 drawn out into the sea is hauled by the net hauler 26 and tied up on the hull.

Next, after the purse line 8 wound on the turning wire reel 25 is transferred to the purse winch 22, the purse ring 7 is taken out from the purse line 8 and set on the lower part of the stern side trailer 11.

Then, the bow float rope 14 and the bow throttle rope 12 are moved to the stern and connected to the ends of the net body 2 on the fish catching side, and then to the major rope 10 to the major side end of the net body 2. , The net hauler 26 is moved to the port side, and the standing davit 23 is finally raised to complete the preparation for re-casting.

A series of operations using the lathe 1 has been performed by the above method.

[0039]

In the conventional lathe 1, the size of the mesh 1a of the net body 2 is uniformly small in order to prevent the fish school 6 from escaping from the surrounding net. Further, in the past, the purse line 8 was attached to the net body 2
Was formed so as to extend over the entire length of the sill-side edge portion 9.

For this reason, the cost required for the net body 2 and the purse line 8 becomes high, which causes a problem that the unit price of the lathe 1 becomes expensive.

Further, since the size of the mesh 1a is small, the mass of the lathe 1 becomes large.
The operation naturally required a lot of equipment and personnel, and there was a problem that it was difficult to operate efficiently.

The present invention has been made in view of the above problems, and it is possible to reduce the cost of the net, reduce the equipment and personnel, and realize an efficient operation. The purpose is to provide an operating method using this.

[0043]

In order to achieve the above-mentioned object, the feature of the lathe according to claim 1 of the present invention is that the mesh of the net-mesh part within a predetermined range of the major net side of this net-mesh part is Is formed to be larger than the net of the fish net side of the fish catching side, from the fish catching side of the sinker side edge to the major side, and the purse line is longer than the entire length of the sinker side edge. It is arranged over a short length, and the major side end of this purse line is connected to the corresponding position of the sinker side edge corresponding to the major side end.

By adopting such a configuration, unlike the net of the net on the fish catching side, which plays an important role in finally catching the fish school, even if the net is formed large, it is practically used. By forming the mesh of the net side of the major side, which has few problems, to be larger than the mesh of the net side of the fish catching side, the cost of the net can be reduced and the length of the purse line can be shortened. By forming it, the cost required for the purse line can be reduced, so the cost required for the entire lathe can be reduced, and the personnel and equipment required for operation can be reduced by reducing the weight of the lathe. Can be reduced and efficient operation can be performed.

The feature of the lathe according to claim 2 is that, in claim 1, the large side end of the purse line is composed of a net of a predetermined range on the large side and a net of the fish catching side. It is at a point connected to the corresponding position of the edge of the sinker side corresponding to the boundary.

By adopting such a configuration, the purse line is formed to the minimum necessary range for catching, so that the cost of the lathe can be reduced and the weight can be reduced while properly catching. be able to.

A feature of a lathe according to claim 3 is that, in claim 1 or 2, the large side end of the purse line is provided with a fish catch side end and a large side end of the sinker side edge. It is at the point where it is connected to almost the middle position.

By adopting such a structure, the length of the purse line can be reduced to nearly half that of the conventional one, so that the manufacturing cost and the weight of the lathe can be reduced more effectively. it can.

The feature of the lathe according to claim 4 is that, in claim 1 or 3, the mesh is gradually or stepwise enlarged from the fish catching side to the major side.

By adopting such a configuration, the size of the net of the net can be gradually increased as the importance for the final catch becomes lower, and thus the cost can be reduced. And while trying to reduce the weight of the lathe,
It becomes possible to obtain more appropriate catches.

According to a fifth aspect of the present invention, in the lathe net according to any one of the first to fourth aspects, the mesh of the net portion within a predetermined range of the large side is formed to be larger than the height of the fish to be caught. There is a point.

By adopting such a structure, the mesh of the net part on the major side can be made larger, so that the net can be more effectively used as long as the catching does not cause any practical problems. The manufacturing cost can be reduced and the weight can be reduced.

A feature of the operation method using the net according to claim 6 is that the net of the fish net on a major side of the net of the major net is excluded from the net of the net on the fish catching side. The purse line is formed over a length shorter than the entire length of the sinker side edge portion from the fish catching side of the sinker side edge portion toward the major side. The point is that the purse line is wound and the net is carried out in a state where the major side end of the line is connected to the corresponding position of the sinker side edge corresponding to the major side end.

By adopting such a method, the mesh of a predetermined range of the net-mesh portion on the major side, which has few problems in practical use even if the mesh is formed large, is made smaller than that of the net-mesh portion on the fish catching side. Also, by forming a large size, it is possible to reduce the cost of the net cloth, and by forming the length of the purse line to be short, the cost required for the purse line can be reduced, so The cost required can be reduced, and in addition, the weight and weight of the net body can be reduced to reduce the number of personnel and equipment required for the operation, thereby enabling efficient operation.

A feature of the operation method using the lathe according to claim 7 is that in claim 6, the large side end of the purse line is a net in a predetermined range of the large side and the fish catching side. It is located at a point where it is connected to the corresponding position on the edge of the sinker side corresponding to the boundary with the net.

By adopting such a method, the purse line is formed to the minimum necessary range for catching, so that the production cost of the lathe can be reduced and the weight can be reduced while performing the catch properly. Can be planned.

The feature of the operating method using the lathe according to claim 8 is that in claim 6 or 7, the major side end of the purse line is the fish catch side end of the sinker side edge. It is at the point where it is connected to the middle end of the large side end.

By adopting such a method, the length of the purse line can be halved as compared with the conventional one, so that the manufacturing cost and the weight can be more effectively reduced.

A feature of the operating method using the lathe according to claim 9 is that, in claim 6 or 8, the mesh is gradually or gradually increased from the fish catching side to the large side. .

By adopting such a configuration, the size of the net of the net can be gradually increased as the importance for the final catch becomes lower, so that the cost can be reduced. And while trying to reduce the weight of the lathe,
It becomes possible to obtain more appropriate catches.

A feature of the operating method using the net according to claim 10 is that, in any one of claims 6 to 9, the mesh of the net part of a predetermined range on the large side is to be caught. The point is to make it larger than the body height.

By adopting such a method, the mesh of the net on the major side can be made even larger, so that it is more effective as far as practically no problem occurs for catching fish. The cost and weight of the lathe can be reduced.

[0063]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a lathe according to the present invention will be described below with reference to FIGS.

The same reference numerals will be used for parts having the same or similar basic construction as the conventional one.

FIG. 1 is a development view showing the lathe 35 of this embodiment.

As shown in FIG. 1, the net 35 in the present embodiment has a net main body 36 having a substantially rectangular plane shape. The net end of the net main body 36 in FIG.
It is said to be the major side for intimidating the fish into a predetermined fishing position, and this major side usually has the largest mesh in the net main body 36 from the viewpoint of reducing the load at the time of lifting net. To be formed. A long large rope 10 is arranged at the tip of the triangular mesh 37 arranged at the large-side end of the net body 36. By applying a traction force to the large rope 10, It is possible to perform the lifting net of the lathe 35.

On the other hand, of the net main body 36, the left end side in FIG. 1 is a fish catching side which has a major function of catching a school of fish driven by a major side. Therefore, the fish catching side is usually the net body 36
Among them, the mesh is formed to be the smallest. A resistor 39 for securing a casting position via a triangular net 38 is attached to the fish catching side. Also,
A plurality of floats 4 for imparting buoyancy to the upper end portion of the net body 36 in FIG. 1 are arranged at predetermined intervals in the longitudinal direction of the upper end portion.

Then, in the net body 36, the range of the largest flat area sandwiched between the large side and the fish catching side is
It is said to be a net net, and this net net surrounds the school of fish in an annular shape for fishing.

In the present embodiment, as shown in FIG. 1, the mesh of meshes within a predetermined range on the major side, which is on the right side of the broken line shown in FIG. The size of the mesh 40 in the diagonal direction is formed to be larger than the mesh size of the net-mesh portion on the fish catching side excluding the predetermined range on the large side.

As described above, the major side of the lathe 35 has the main function of intimidating the school of fish 6 and driving it toward the fish catching side. It is said that the main function is the threat of the school of fish as well as the major side, since the fishing nets are quickly formed and they are not involved in the catch until the final stage of the catch.

Therefore, the fish net having a significant role for finally catching the school of fish 6 as long as it has a size capable of exerting a function as a threat to the school of fish even in the predetermined range of the net on the large side. It can be considered that it is less necessary to form meshes on the net side of the catching side.

Even if the mesh size is made larger than the body height of the fish, it is known experimentally that if the mesh size is about 600 mm, the fish rarely escapes to the outside of the surrounding net.

Therefore, in the present embodiment, the mesh size of the net portion within a predetermined range on the large side is formed to be large, so that the cost required for the net body 36 can be reduced and the weight can be reduced while the fish is properly caught. Is able to.

Incidentally, as shown in FIG.
The meshes on the fish catching side may be formed to have a uniform size. Alternatively, as shown in FIG. 2, the meshes on the fish catching side gradually increase from the end on the fish catching side toward the end on the large side. The mesh size may be increased stepwise. In such a case, the mesh size of the net can be gradually increased as the importance for the final catch becomes lower, so that the cost is reduced and the net is lighter, It is expected that a catch rate will be obtained.

Further, in this embodiment, the purse line 42 for squeezing the sinker-side edge portion 9 of the net body 36 has the same length as the conventional one, over the entire length of the sinker-side edge portion 9. As shown in FIG. 1, the length is shorter than the entire length of the sinker side edge portion 9 from the tip of the triangular net 38, which is not formed and is arranged at the fish catching side end of the net body 36, toward the major side. It is distributed over the length.

The large side end of the purse line 42 (the right end in FIG. 1) is connected to the corresponding position of the sinker side edge 9 corresponding to the large side end.

That is, as described above, the net part in the predetermined area on the large side has only to function as a threat to the school of fish 6, and it is necessary to squeeze the sinker side edge part 9 to the bag net 3. Considering that it is the fish net side of the fish catching side that is involved in the fish school up to the stage of pumping the catch, there are few practical problems even if the perspective line 42 is not extended to the fish net side of the major side. I can say.

Rather, by shortening the length of the purse line 42 as in this embodiment, the purse line 42 is
It is possible to reduce the cost required for the manufacturing, and to reduce the manufacturing cost and the weight of the entire lathe 35. Further, since the weight of the lathe 35 is reduced, the load acting on the fishing boat 43 at the time of lifting the net is reduced.
It is possible to operate safely while preventing the overturning of the.

As shown in FIG. 1, the connecting position of the large-side end portion of the purse line 42 is formed to have a small mesh with the mesh area of the large-side predetermined area in which the mesh is large. It may be at a position corresponding to the boundary between the net caught on the fish catching side. As a result, the purse line 42 can be formed to have a length over the minimum range necessary for proper fishing, so that the cost and weight can be more effectively reduced.

Not limited to this, for example, the large side end of the purse line 42 may be connected to a substantially intermediate position between the fish catch side end of the sinker side edge 9 and the large side end. You may As a result, the manufacturing cost and weight of the purse line 42 can be halved as compared with the conventional one.

Next, an embodiment of an operating method using the lathe 35 according to the present invention to which the lathe 35 is applied will be described.

In this embodiment, the fishing boat 43 shown in FIGS. 3 and 4 is used for operation.

This fishing boat 43 is equipped with various equipment such as a purse winch 45 for winding the purse line 42, a vertical roller 46, a bollard 47, a stopper hook 48 and a three-way roller 49, as in the conventional case. However, in the present embodiment, since the net body 36 can be made lighter, the net can be pulled while the large rope 10 is held by the simple ball rollers 50 arranged on the stern side. It is like this. In addition, in the present embodiment, the operation can be performed by a small number of people of about 2 to 5 people.

First, at the stage of preparing a net as shown in FIG.
The stern 35 of the present embodiment is installed on the stern side.

When starting the net casting from this state, FIG.
As shown in FIG. 6, the resistor 39 is floated on the sea to secure a predetermined casting position, and the fishing boat 43 is advanced to move the fish school 6
While circling around, the lathe 35 is sequentially fed out to the sea from the end on the fish catching side.

That is, at this time, the fish catching side having a fine mesh is sent out to the sea first, and the major side having a large mesh is sent out later. Generally, the finer the mesh is, the smaller the mesh is. As the flow resistance increases, the subsidence velocity into the sea slows down. On the other hand, as the mesh size increases, the flow resistance decreases and the subsidence velocity increases. Therefore, in the present embodiment, the fish catching side with a slower sinking speed is sent out to the sea first, and the major side with a faster sinking speed is sent out later, so that the sinking speed of the entire lathe 35 can be made uniform.

Then, when the fishing boat 43 makes a round around the school of fish 6 and the bow reaches the position of the resistor 39, the movement of the fishing boat 43 is terminated, and the resistor 39 is taken in on the bow port side as shown in FIG. .

After that, the triangular net 38 on the fish catching side is brought closer to the hull by the vertical roller 46 on the starboard side of the stern, and this is connected to the stopper hook 48.

After the casting net is finished, the purse line 42 is wound and the net is prepared as shown in FIG. That is, the ball rope 50 on the stern side holds the large rope 10 and the end portion of the purse line 42 on the fish catching side is connected to the purse line original rope 51 connected to the purse winch 45.

Next, as shown in FIG. 8, the purse winch 45 is driven to wind the perspective line 42, and the ball roller 50 is driven to lift the net on the large side. At this time, the perspective line 42 is wound up to the position of the connection point between the perspective line 42 and the sinker side edge portion 9 as shown in FIG. Further, the fishing net on the stern side is performed up to the position of the fishing net stop mark 52 previously attached to the lathe, as shown in FIG. 10, in consideration of the relationship with the winding of the purse line 42.

When the winding of the purse line 42 is completed, as shown in FIGS.
The ring needle 53 is passed through, and then the ring needle 53 is hung on the derrick 54. After passing through the ring needle 53, the tension applied to the purse line 42 is released.

Next, as shown in FIG. 13 and FIG.
The purse winch 45 is rotated in the opposite direction to the winding direction, and the purse line 42 is fed out to restart the lifting net. As a result, as the purse seine advances, the connection point of the purse line 42 can be moved to the stern side while keeping the state of being pulled up on the ship, so that escape of the catch from the sinker side edge 9 is prevented. be able to.

Then, after the fishing net is completed to a certain extent, the fish fastening shown in FIG. 15 is performed. That is, first, the work of moving the bag net 3 to the stern by removing the triangular net 38 on the fish catching side at the bow. At this time, the fishnet side triangular net 3
No. 8 is moved to the stern with the fish caught on the boat so as not to escape. The purse line 42 continues to be connected to the main rope 51 of the purse winch 45 until the bag net 3 moves to the stern.

After the fish tightening is completed, the fish drawing shown in FIG. 16 is performed. That is, the nets are manipulated so that the catches move to the bag net 3. At this time, the catch is taken into the ship by the ball roller 50. Here, conventionally, it was necessary to carry out fish fishing while performing back rowing while the net was sandwiched between the carrier 33 and the fishing boat 16, but in the present embodiment, in order to reduce the weight of the lathe 35. As a result, it is not necessary to collect large-scale fish as in the past, and small-scale and efficient fishing can be performed.

Finally, the purse line 42 and the purse ring 7 are arranged so that the net can be cast again. After that, when the net is cast, the resistor 39 may be connected to the fishnet side triangular net 38.

As a result, the lathe 35 in this embodiment is used.
A series of operations using is completed.

Therefore, according to the present embodiment, the mesh of the net-mesh portion in the predetermined range on the large side is made larger than the mesh of the net-mesh portion on the fish catching side, and the perspective line 42 is formed on the sinker side edge portion 9. Is formed over a length shorter than the entire length of the sinker side edge portion 9 from the fish catch side end portion to the major side. By connecting, the cost required for the net cloth and the purse line 42 can be reduced, and the weight and weight of the net body 35 can be reduced to reduce the number of personnel and equipment required for operation,
A small-scale, safe and efficient operation can be performed.

Further, according to the present embodiment, the fish catching side having a slower sinking speed is sent out to the sea first, and the major side having a faster sinking speed is sent out later, whereby the sinking speed of the entire lathe 35 can be made uniform. As a result, it is possible to realize a more appropriate lathe operation.

The present invention is not limited to the above-mentioned embodiment, but various modifications can be made as necessary.

For example, it is not necessary that the boundary line between the netting part in the predetermined range on the large side and the netting part on the fish catching side is limited to a straight line as shown by the broken lines in FIGS. 1 and 2. For example, the boundaries may be divided into slopes or steps.

[0101]

As described above, according to the lathe according to claim 1 of the present invention, the manufacturing cost of the lathe can be reduced and the weight thereof can be reduced, and the personnel and equipment required for the operation can be reduced. Safe and efficient operation.

According to the lathe according to the second aspect, in addition to the effect of the lathe according to the first aspect, cost reduction and weight reduction of the lathe can be achieved while properly catching fish.

According to the lathe according to claim 3, in addition to the effect of the lathe according to claim 1 or 2, it is possible to more effectively reduce the manufacturing cost and the weight of the lathe.

According to the lathe according to claim 4, in addition to the effect of the lathe according to claim 1 or 3, the production cost of the net can be reduced and the weight thereof can be reduced, and more appropriate fishing can be performed. It will be possible.

According to the lathe according to claim 5, in addition to the effect of the lathe according to any one of claims 1 to 4,
Further, it is possible to effectively reduce the manufacturing cost and the weight of the lathe.

According to the operating method using the lathe according to the sixth aspect, the manufacturing cost of the lathe can be reduced and the weight thereof can be reduced, and the personnel and equipment required for the operation can be reduced, which is safe and efficient. Can operate.

According to the operating method using the lathe according to the seventh aspect, in addition to the effect of the operating method using the lathe according to the sixth aspect, the production cost of the lathe is reduced and the weight is light while the fishing is properly performed. Can be realized.

According to the operating method using the lathe according to claim 8, in addition to the effect of the operating method using the lathe according to claim 6 or 7, it is possible to more effectively reduce the manufacturing cost of the lathe. Also, the weight can be reduced.

According to the operating method using the lathe according to claim 9, in addition to the effect of the operating method using the lathe according to claim 6 or 8, the manufacturing cost and the weight of the lathe can be reduced. It becomes possible to carry out more appropriate fishing while aiming.

According to the operating method using the lathe according to claim 10, in addition to the effect of the operating method using the lathe according to any one of claims 6 to 9, the manufacturing of the lathe is more effective. Cost reduction and weight reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a development view showing an embodiment of a lathe according to the present invention.

FIG. 2 shows an embodiment of a lathe according to the present invention.
Exploded view showing another embodiment of

FIG. 3 is a side view showing a fishing boat for carrying out a fishing net operation method according to the present invention.

4 is a plan view of the fishing boat shown in FIG.

FIG. 5 is a diagram showing a state of starting net casting in an embodiment of an operating method using a net according to the present invention.

FIG. 6 is a diagram showing a state of finishing the casting net in the embodiment of the operating method using the net according to the present invention.

FIG. 7 is a diagram showing a state of winding a purse line and a preparation state of a lifting net in an embodiment of an operating method using a net according to the present invention.

FIG. 8 is a diagram showing a state of winding and purging of a purse line in an embodiment of an operating method using a lathe according to the present invention.

FIG. 9 is a diagram showing a state in which the purse line is completely wound in the embodiment of the operating method using the net according to the present invention.

FIG. 10 is a view showing a state where the purse line is completely wound in the embodiment of the operating method using the lathe according to the present invention.

FIG. 11 is a diagram showing a processing state of a purse ring in an embodiment of an operating method using a lathe according to the present invention.

FIG. 12 is a diagram showing a processing state of a purse ring in the next step of FIG. 11 in the embodiment of the operating method using the net according to the present invention.

FIG. 13 is a diagram showing resumption of a lifting net in the embodiment of the operating method using the net according to the present invention.

FIG. 14 is a diagram of the next step of FIG. 13 showing the resumption of the lifting net in the embodiment of the operating method using the net according to the present invention.

FIG. 15 is a view showing a fish tightening state in the embodiment of the operating method using the lathe according to the present invention.

FIG. 16 is a diagram showing a fish drawing state in the embodiment of the operating method using the lathe according to the present invention.

FIG. 17 is a development view showing an example of a conventionally used lathe.

FIG. 18 is a diagram showing an example of an operation method using a conventionally used lathe.

FIG. 19 is a plan view showing a fishing boat for performing fishing operation using a conventionally used net.

FIG. 20 is a diagram showing a state of preparation for casting nets in an operation method using a net that has been conventionally adopted.

FIG. 21 is a diagram showing a state in which a net has been thrown in a conventional operating method using a net.

FIG. 22 is a diagram showing a state of winding in a conventional operating method using a lathe.

FIG. 23 is a diagram showing the end state of the winding in the operation method using a conventionally used net.

FIG. 24 is a diagram showing a state of preparation of a fishing net in a conventional operating method using a net.

FIG. 25 is a diagram showing a state of a net in a conventional operating method using a net.

FIG. 26 is a view showing a fish tightening state in the operation method using the conventionally used lathe.

FIG. 27 is a diagram showing a fish fetching state in a conventional operating method using a lathe.

FIG. 28 is a diagram showing a re-casting net preparation state in a conventional operating method using a lathe.

[Explanation of symbols]

4 float 5 Senko 6 school of fish 7 purse ring 35 lathe 36 Net body 40 mesh 42 Perth Line

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuo Kumazawa             2-20 Higashi-Shinagawa 2-chome, Shinagawa-ku, Tokyo Nichi             Within Mow Co., Ltd. F term (reference) 2B106 EA04 EL01 EL04

Claims (10)

[Claims] 1. A net body of a predetermined size is formed, which has a long-sized net body extending from the major side to the fish catching side to the fish catching side, and is for submerging the net body in the sea. A purse line in which a purse line for squeezing the sinker side edge portion at the time of lifting net is disposed along the sinker side edge portion of the net body on which the sinker is disposed In the net net, the net of the net net in a predetermined range on the major side is formed to be larger than the net of the net net on the fish catching side excluding this range, and the perspective line is formed by the sinker. The side edge is arranged from the fish catching side to the major side over a length shorter than the entire length of this sinker side edge, and the major side end of this perspective line corresponds to the major side end. A lathe that is connected to the corresponding position of the sinker side edge. 2. The large-side end of the purse line is located at a corresponding position of a sink-side edge corresponding to the boundary between the net-mesh in a predetermined range on the large-side and the net-mesh on the fish catching side. The rotary net according to claim 1, wherein the rotary net is connected. 3. The large side end of the purse line is connected to a substantially intermediate position between the fish catch side end and the large side end of the sinker side edge. The lathe according to item 2. 4. The lathe according to claim 1 or 3, wherein the mesh is gradually or gradually increased from the fish catching side to the large side. 5. The net of any one of claims 1 to 4, characterized in that the net of the net part in a predetermined range on the large side is formed to be larger than the height of the fish to be caught. . 6. A lathe having a mesh of a predetermined size and a purse line provided on the sink side edge of a net main body formed in a long shape from the large side to the net side to the fish catching side. Is arranged in an annular shape around the school of fish, and then the purse line is wound and the net of the net body is lifted to catch the school of fish surrounded by the net body while squeezing the edge of the sinker side. In the operation method using a net, in the net part, the mesh of the net part in a predetermined range on the major side is formed larger than the net of the net part on the fish catching side excluding this range, and the perspective The line is arranged from the fish catching side of the sinker side edge toward the major side over a length shorter than the entire length of the sinker side edge, and the major side end of this perspective line is connected to the major side. Winding of the purse line in a state of being connected to the corresponding position of the sinker side edge portion corresponding to the side end portion. Operation method using a seine which is characterized in that only and the lifting network. 7. The large-side end portion of the purse line is connected to a corresponding position of a sink-side edge portion corresponding to a boundary between a net area in a predetermined range on the large side and a net area on the fish catching side. The operating method using a lathe according to claim 6, wherein 8. The large-side end portion of the purse line is connected to the sinker-side edge portion at a substantially intermediate position between the fish catch side end portion and the large-scale side end portion. An operating method using the lathe according to claim 7. 9. The operating method using a lathe according to claim 6 or 8, wherein the mesh is gradually or gradually increased from the fish catching side to the large side. 10. The net of any one of claims 6 to 9, characterized in that the net of the net part of the large side in a predetermined range is formed larger than the height of the fish to be caught. Operating method using.