JP2018076133A - Lifting device of fishing gear and lifting method of fishing gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting device which can protect the fishing gear from bad weather and a lifting method of the fishing gear.SOLUTION: The lifting device 6 of the fishing gear is the lifting device 6 of the fishing gear to move up and down the installed fishing gear with respect to the sea level S using the float, and comprises the winch 61 fixed to the fishing gear, the weight 62 sunk to the seabed B, and the rope 63 connected to the weight 62 and wound around the winch 61 in the tensioned state. The fishing gear is a fixed shore net 1 and the winch 61 is preferably fixed on the upper end part of the sea surface S side of the fixed shore net 1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fishing gear lifting apparatus and a fishing gear lifting method for lifting a fishing gear installed using a float with respect to the sea surface.

  Conventionally, a stationary net fishing method is known as a type of fishing method for catching fish. In this fixed net fishing method, a fixed net is laid on a fishing ground such as a coastal area, and fish are caught after waiting for the fish to enter and leave the net.

  As such a stationary net, there has been proposed a stationary net that guides a fish to a playground by a fence net, and finally guides and catches the fish from the playground to a box net (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 07-203807

  The proposed stationary net is placed in the sea for a long time in order to catch fish after waiting for the arrival and departure of the school of fish. For example, stationary net fishing equipment continues to be installed in the sea throughout the year except for one removal period. For this reason, fishing gears may receive high waves due to the approach of low pressure and typhoons (bad weather), causing damage such as outflows of fishing gears, and the amount of damage was enormous. In addition, not only stationary nets, but also fishing gear including aquaculture facilities, the same damage may occur because they continue to be installed in the sea.

  Therefore, by removing fishing gear from the sea in advance before approaching low pressure or typhoon (bad weather), damage such as outflow of fishing gear is prevented. However, once the removal of the fishing gear started, there was a period during which it could not be operated until it was re-installed, and a great amount of human labor was required to remove and re-install the fishing gear, causing damage that could not be ignored. . Therefore, a device and method that can easily protect fishing gear from bad weather are desired.

  It is an object of the present invention to provide a fishing gear lifting device and a fishing gear lifting method that can easily protect the fishing gear from bad weather.

  The present invention is a lifting device of a fishing gear that lifts and lowers a fishing gear installed using a float, and is connected to the winch fixed to the fishing gear, a weight set on the seabed, and the weight, And a rope that is wound around the winch in a state where tension is applied.

  Moreover, it is preferable that the fishing gear is a stationary net and the winch is fixed to a sea surface side upper end portion of the stationary net.

  The fishing gear lifting device includes a plurality of the winches fixed to the fishing gear at predetermined intervals along the fishing gear, and a control device capable of providing a power signal and a control signal for controlling the operation to the plurality of winches, Provided between the adjacent winches, and between the plurality of winches and the control device, with the control device serving as a starting point and an ending point, and connecting the plurality of winches between the starting point and the ending point in an adjacent order. It is preferable to further include a plurality of power communication cables that electrically connect the control device and each of the plurality of winches.

  Moreover, it is preferable that the said control apparatus can provide a power supply separately to each of the said power communication cable connected to the origin side, and the said power communication cable connected to an end point side.

  Moreover, it is preferable that the raising / lowering device of a fishing gear is further provided with the stopper which is arrange | positioned in the position away from the said weight in the said rope by predetermined length, and stops the winding of the said winch.

  The present invention also relates to a fishing gear lifting method for lifting a fishing gear installed using a float relative to the sea surface, a winch fixing step of fixing a winch to the fishing gear, and a weight sinking step of sinking a weight on the seabed. A rope installation step for winding the rope connected to the weight around the winch in a tensioned state, and a rope lead length changing step for changing the pull-out length of the rope by rotating the winch And a method for raising and lowering fishing gear.

  In the winch fixing step, the winch is preferably fixed near the float of the fishing gear.

  Moreover, it is preferable that the fishing gear is a stationary net, and in the winch fixing step, the winch is fixed to the sea surface side upper end of the stationary net.

  In the rope lead length changing step, it is preferable that at least two of the plurality of winches are operated simultaneously.

  Further, the lifting method of the fishing gear further includes a power communication cable connecting step of electrically connecting the plurality of winches in order using a plurality of power communication cables after the weight setting step, and in the winch fixing step, The plurality of winches are preferably fixed to the fishing gear at predetermined intervals along the fishing gear.

  In addition, the method for raising and lowering fishing gear includes a control device capable of providing a power signal and a control signal for controlling operation to the plurality of winches before the rope installation step and after the power communication cable connection step. It is preferable to further include a control device connection step of connecting the plurality of winches to the plurality of winches using the power communication cable with the device as a starting point and an ending point.

  The fishing gear lifting method further includes a depth setting step for setting the depth of the winch relative to the sea surface, and in the rope pull-out length changing step, the control device sets the depth of the winch in the depth setting step. It is preferable to transmit a control signal for rotating the winch to the winch so that the depth is reached.

  The fishing gear lifting / lowering method further includes an operation time setting step of setting an operation direction and an operation time of the winch, and in the rope pull-out length changing step, the control device is based on the operation direction and the operation time of the winch. Preferably, a control signal for rotating the winch is transmitted to the winch.

  Further, in the rope pull-out length changing step, the control device transmits a control signal for causing the winch to start an operation, and the winch is provided on the rope at a position away from the weight by a predetermined length, It is preferable to rotate to the position of the stopper which stops the winch winding.

  According to the present invention, fishing gear can be easily protected from bad weather.

It is a top view which shows the state which attached the raising / lowering apparatus of the fishing gear which concerns on 1st Embodiment of this invention to the stationary net. It is a perspective view which shows the state which attached the raising / lowering device of the fishing gear of 1st Embodiment to the stationary net. It is a schematic diagram which shows the relationship between the raising / lowering apparatus of the fishing gear of 1st Embodiment, and a mooring rope. It is a side view which shows the raising / lowering device of the fishing gear of 1st Embodiment. It is a side view showing the state where a part of raising and lowering device of fishing gear of the 1st embodiment was sunk. It is a side view showing the state where the stationary net was sunk by the lifting device of the fishing gear of the first embodiment. It is a flowchart which shows the raising / lowering method of the fishing gear of 1st Embodiment. It is a side view which shows the state which attached the raising / lowering device of the fishing gear which concerns on 2nd Embodiment of this invention to the aquaculture facility. It is a side view which shows the state which aquaculture facility was sunk by the raising / lowering apparatus of the fishing gear of 2nd Embodiment.

[First embodiment]
Hereinafter, a first embodiment of a fishing gear lifting apparatus and a fishing gear lifting method according to the present invention will be described with reference to FIGS. The fishing gear lifting / lowering device and the fishing gear lifting / lowering method according to the present embodiment lift and lower the stationary net 1.
First, the configuration of the stationary network 1 will be described with reference to FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the stationary net 1 includes an athletic field 2, a fence net 3, and a box net 4.
The athletic field 2 is formed so as to surround a predetermined sea area by a net extending from the sea surface toward the sea bottom. Specifically, the athletic field 2 is formed by sequentially bending and arranging each of both ends in the linear direction of the net arranged substantially linearly along the sea surface so as to be folded back into a hook shape (U shape). Is done. The athletic field 2 is formed by arranging both end edges of the folded net with a predetermined interval. The athletic field 2 has a cylindrical shape in which an opening is formed in the mesh surface between the bending positions on one of the hook-shaped (U-shaped) portions (folded portions), and the diameter of the moving field 2 is reduced as the distance from the opening increases. Is connected to the opening.

  The fence net 3 is formed by arranging a net extending from the sea surface toward the sea bottom in a straight line. The fence net 3 is arranged so as to extend to the open sea from between both end edges of the net of the playground 2 arranged at a predetermined interval.

  The box net 4 is formed in a substantially rectangular shape in plan view by a net with a bottom, and is formed by being arranged so that the tip side of the ascending 5 reaches the inside.

  According to the stationary net 1 as described above, the fence net 3 is provided to guide the fish from the open sea to the playground 2 along the net. The athletic field 2 is provided to guide the fish moving along the folded net to the ascending 5. The box net 4 is provided for catching fish that have moved from the climb 5. The stationary net 1 is laid at a desired position on the fishing ground by appropriate ropes, floats, anchors, etc. (not shown).

  Next, the lifting / lowering device 6 for fishing gear will be described with reference to FIGS.

  The fishing gear lifting / lowering device 6 is a device that lifts and lowers the stationary net 1 as described above, which is installed using a float, with respect to the sea surface S. The fishing gear elevating device 6 reduces the damage to the fishing gear by sinking the position of the stationary net 1 to the seabed B side in advance with respect to the sea surface S before the approach of low pressure or typhoon (bad weather). In addition, the lifting device 6 of the fishing gear raises (raises) the position of the stationary net 1 that has been submerged with respect to the sea surface S after the passage of low pressure or typhoon (recovery of bad weather), so that a short period of time and less labor is required So we can resume fishing.

  The fishing gear lifting / lowering device 6 is installed by being fixed to a stationary net 1 previously installed in a fishing ground. Or the raising / lowering device 6 of a fishing gear is fixed to the stationary net 1 before installing in a fishing ground, and is installed with installation of the stationary net 1. In the present embodiment, one fishing gear lifting device 6 is installed for each stationary net 1. Further, in the present embodiment, the fishing gear lifting device 6 is installed in the box net 4 of the stationary net 1.

The fishing gear lifting / lowering device 6 includes a winch 61, a weight 62, a rope 63, a control device 65, and a power communication cable 64, as shown in FIGS. 1 and 2.
The winch 61 is fixed in the stationary net 1 so as to be disposed in the water. The winch 61 has a pulley (not shown), an electric motor (not shown) for rotating the pulley, and a depth meter (not shown), and a control signal given from the outside based on the current depth. It is a device that can rotate an electric motor (not shown) according to the above. In the present embodiment, the winch 61 is fixed near the upper end of the stationary net 1 on the sea surface S side, as shown in FIG. More specifically, the winch 61 is provided in the vicinity of the upper end of the box net 4 on the sea surface S side (upper opening side) and is fixed to the rope of the box net 4. Further, in the present embodiment, six (plural) winches 61 are fixed to the sea surface S side (upper opening side) upper end of the box net 4 with a predetermined interval. In particular, each of the plurality of winches 61, 61,... Is fixed in the vicinity of the plurality of floats 69, 69,.

  The weight 62 is set on the seabed B. In this embodiment, the weight 62 is provided for each of the six winches 61.

  The rope 63 is connected to the weight 62 and is wound around the winch 61 in a state where tension is applied. Specifically, one end of the rope 63 is connected to the weight 62, and the other end is wound around a pulley (not shown) of the winch 61 in a state where a tension is applied. A stopper 67 is fixed to the rope 63 at a position away from one end (the weight 62) by a predetermined length so that the rope 63 cannot be wound around the winch 61 any more. That is, the rope 63 is provided with a stopper 67 for stopping the winding of the winch 61 at a position away from the weight 62 by a predetermined length.

  In the present embodiment, the rope 63 is a wire rope formed by twisting a metal wire, or a fiber rope formed by twisting fibers or resin. In the present embodiment, such ropes 63 are provided for each winch 61 and weight 62, that is, six ropes 63 are provided. In the present embodiment, the rope 63 is designed with a strength that can withstand a load that causes the box net 4 to sink, and a swivel (not shown) is provided as a twist between the stopper 67 and the weight 62. .

  Further, the rope 63 is installed at a position closer to the box net 4 than the mooring rope of the box net 4 as shown in FIG. That is, the rope 63 is installed with a larger inclination angle with respect to the sea surface S than the inclination angle of the mooring rope with respect to the sea surface S.

  The control device 65 is mounted on, for example, a ship 66 and can provide a plurality of winches 61, 61,. Such a control device 65 has two power supplies, and can supply power to the plurality of winches 61, 61,... From the respective power supplies. Moreover, the control apparatus 65 can provide a control signal to each winch 61 with two power supplies.

  Each of the plurality of power communication cables 64 is provided between the adjacent winches 61 and between the winch 61 and the control device 65. Each of the plurality of power communication cables 64 has the control device 65 as a starting point and an end point, and connects the plurality of winches 61, 61,... The winches 61, 61, ... are electrically connected. The power communication cable 64 has a connection terminal 68 that can be connected to the control device 65 at a position where it is connected to the control device 65. Therefore, the plurality of power communication cables 64 are arranged along the upper end of the box network 4 so as to surround the box network 4. Each of the plurality of power communication cables 64 can supply power to each winch 61 and can transmit a control signal for rotating an electric motor (not shown) of the winch 61. It has become.

  In particular, among the plurality of power communication cables 64, each of the two power communication cables 64 having the connection terminals 68 connected to the control device 65 can be individually supplied with power and control signals from the control device 65. It has become. That is, the plurality of power communication cables 64 can individually supply power from the start side and the end point.

  According to the fishing gear elevating device 6 as described above, the winch 61 is fixed to the stationary net 1 (box net 4), and the weight 62 is sunk on the seabed B. Accordingly, the stationary net 1 (box net 4) is installed such that the distance from the sea surface S to the upper end depends on the length of the rope 63 drawn from the winch 61. As shown in FIG. 4, during normal times (when the weather is good), the rope 63 is pulled out from the winch 61, and the stationary net 1 (box net 4) is adjusted so that the upper end is positioned in the vicinity of the sea surface S. The On the other hand, when bad weather is expected, the pull-out length of the rope 63 is shortened by the operation of the winch 61 as shown in FIG. 5, and the upper end of the stationary net 1 (box net 4) sinks from the sea surface S. To do. By operating all the winches 61, the entire stationary net 1 (box net 4) sinks from the sea surface S as shown in FIG.

The fishing gear elevating device 6 as described above operates as follows.
First, as shown in FIG. 4, the power communication cable 64 is connected to the control device 65 so that the winch 61 can be controlled. The control device 65 receives the depth after the operation for each winch 61. The control device 65 supplies power to each winch 61 via the power communication cable 64 and acquires the current depth from each winch 61. Thereby, the control apparatus 65 calculates the operation amount (pulley rotation amount) and the operation direction (pulley rotation direction) of each winch 61 from the depth after the operation and the current depth.

  The control device 65 transmits the calculated movement amount and movement direction of the winch 61 to the six winches 61 as control signals. The control device 65 individually provides a power supply and a control signal to each of the power communication cable 64 connected to the start side and the power communication cable 64 connected to the end point. Each of the winches 61 changes the pull-out length of the rope 63 by rotating the pulley according to the control signal. For example, as shown in FIG. 5, the control device 65 transmits a control signal for winding the rope 63 to each winch 61, whereby each of the winches 61 starts to rotate in the direction for winding the rope 63. As a result, the pull-out length of the rope 63 drawn from the winch 61 is shortened, and the distance between the winch 61 and the weight 62 is shortened. Therefore, the stationary net 1 (box net 4) fixed to the winch 61 is Sink to the B side.

  Conversely, the control device 65 transmits a control signal for pulling out the rope 63 to each winch 61, whereby each of the winches 61 starts to rotate in the direction in which the rope 63 is pulled out. As a result, the pull-out length of the rope 63 pulled out from the winch 61 becomes longer, and the distance between the winch 61 and the weight 62 becomes longer. Ascend (rise) to the sea level S side.

  The winch 61 stops the rotation of the pulley after operating by the operation amount included in the control signal. As a result, the winch 61 maintains the pull-out length of the rope 63 as it is after sinking or rising to the depth set by the control signal. Therefore, the fishing gear lifting / lowering device 6 can maintain the depth of the stationary net 1 (box net 4) at the depth after the operation.

  Then, as shown in FIG. 6, after all the winches 61 are operated, the control device 65 is removed from the power communication cable 64. As described above, the lifting device 6 for fishing gear can protect the stationary net 1 (box net 4) from waves during bad weather by changing the depth of the stationary net 1 (box net 4). Moreover, the lifting / lowering device 6 for fishing gear can easily float the settling net 1 (box net 4).

Next, the raising / lowering method of the fishing gear which concerns on this embodiment is demonstrated using the flowchart of FIG.
The lifting and lowering method of the fishing gear includes a winch fixing process, a weight sinking process, a power communication cable connecting process, a controller connecting process, a rope installing process, a depth setting process, a rope drawing length changing process, and a controller disconnecting process. A process.

  In the winch fixing step, the winch 61 is fixed to the stationary net 1 (step S1). Specifically, in the winch fixing step, the plurality of winches 61, 61,... Are fixed to the stationary net 1 (box net 4) at a predetermined interval along the outer periphery of the stationary net 1 (box net 4). The Further, in the winch fixing step, the winch 61 is fixed near the float 69 of the stationary net 1 (box net 4). In the winch fixing step, the winch 61 is fixed to the sea surface S side upper end of the stationary net 1 (box net 4).

  In the weight setting step, the weight 62 is set on the seabed B (step S2). Specifically, in the weight settling step, the weight 62 is set closer to the stationary net 1 (box net 4) than the mooring position (not shown) of the seabed B of the mooring rope 41 of the fixed net 1 (box net 4). Is done.

  In the power communication cable connection step, the plurality of winches 61, 61,... Are sequentially electrically connected using the power communication cable 64 (step S3). Thereby, in the power communication cable connecting step, the plurality of winches 61, 61,... Are connected in a line by the power communication cable 64.

  In the control device connection step, the control device 65 capable of providing a power supply and a control signal for controlling the operation to the plurality of winches 61, 61,... Starts from the control device 65 as a starting point and an end point. ,... Are connected using the power communication cable 64 (step S4). Thereby, in the control device connection step, the control device 65 can provide power and control signals to the plurality of winches 61, 61,.

  In the rope installation process, one end of the rope 63 is connected to the weight 62 in advance, and is wound around the winch 61 in a state where a tension is applied (step S5). Thereby, in the rope installation step, the rope 63 is installed at a larger inclination angle with respect to the sea surface S than the inclination angle with respect to the sea surface S of the mooring rope 41.

  In the depth setting step, the control device 65 acquires the current depth from each winch 61 via the power communication cable 64. In the depth setting step, the control device 65 sets the depth of the winch 61 with respect to the sea surface S (step S6).

  In the rope drawing length changing step, the control device 65 includes a power source and a plurality of winches 61, 61,... For each of the power communication cable 64 connected to the start side and the power communication cable 64 connected to the end point side. A control signal for controlling the operation is provided individually (step S7). In the rope drawing length changing step, the control device 65 transmits a control signal for rotating the winch 61 to each winch 61 so that the depth of the winch 61 becomes the depth set in the depth setting step.

  In the rope drawing length changing step, the drawing length of the rope 63 is changed by the winch 61 rotating based on the control signal (step S8). Specifically, in the rope drawing length changing step, the winch 61 rotates in the direction of winding the rope 63 when the set depth is deep with respect to the current depth (step S9). Thereby, in the rope drawing length changing step, the winch 61 reduces the distance to the weight 62 by winding the rope 63 and sinks with respect to the sea surface S. Since the winch 61 is fixed to the stationary net 1 (box net 4), the stationary net 1 (box net 4) can sink with respect to the sea surface S as the winch 61 sinks.

  In the rope pull-out length changing step, the winch 61 stops operating after operating until the set depth is reached. Thereby, in the rope pull-out length changing step, the control device 65 can maintain the winch 61 in a state (set depth) with respect to the sea surface S, and the stationary net 1 (box net 4) on the sea surface S. On the other hand, it is possible to maintain a state of sinking (set depth).

  On the other hand, in the rope drawing length changing step, the winch 61 rotates in the direction of pulling out the rope 63 when the set depth is shallow with respect to the current depth (step S10). Thereby, in the rope drawing length changing step, the winch 61 extends the distance to the weight 62 by pulling out the rope 63 and rises (rises) with respect to the sea surface S. Since the winch 61 is fixed to the stationary net 1 (box net 4), the stationary net 1 (box net 4) can rise (rise) with respect to the sea surface S as the winch 61 rises (rises). .

  In the rope pull-out length changing step, the winch 61 stops operating after operating until the set depth is reached. Thereby, in a rope extraction length change process, the control apparatus 65 can maintain the state (set depth) where the winch 61 floated (ascended) with respect to the sea surface S, and the stationary net 1 (box net 4). It can be maintained in a state of rising (rising) with respect to the sea level S (set depth).

In the present embodiment, the rope pull-out length changing step sinks the entire stationary network 1 (box network 4) from the sea surface S by performing control signal transmission and operation on all six winches 61 (step S11).
In the control device disconnecting step, both ends of the power communication cable 64 are disconnected from the control device 65 (step S12).

According to the fishing gear lifting / lowering device 6 of the first embodiment described above, the following effects can be obtained.
(1) The fishing gear lifting / lowering device 6 is wound around the winch 61 in a state in which a winch 61 fixed to the fishing gear as the stationary net 1, a weight 62 sunk on the seabed B, and a weight 62 connected to the weight 62. And a rope 63 to be rotated. By rotating the winch 61, the pull-out length of the rope 63 is changed, so that the distance between the weight 62 and the stationary net 1 can be changed. Specifically, before the bad weather occurs, the stationary net 1 can be lowered with respect to the sea surface S by rotating the winch 61 and winding the rope 63 to shorten the distance between the weight 62 and the stationary net 1. it can. On the other hand, after bad weather, by rotating the winch 61 and pulling out the rope 63, the distance between the weight 62 and the stationary net 1 can be increased, so that the stationary net 1 can be lifted toward the sea surface S. By simply rotating the winch 61, the stationary net 1 can be sunk or floated according to the state of the sea surface S, so that the stationary net 1 can be easily protected from bad weather.

(2) The fishing gear was the stationary net 1 and the winch 61 was fixed to the sea surface S side upper end of the stationary net 1. Thereby, compared with the case where the winch 61 is attached to the side close to the seabed B, maintenance such as removal of attached organisms and parts replacement can be facilitated. Moreover, it can install easily with respect to the stationary network 1 already installed in the sea.

(3) The fishing gear lifting / lowering device 6 is further supplied with power to the plurality of winches 61, 61,... And the plurality of winches 61, 61,. And a control device 65 capable of providing a control signal for controlling the operation, between the adjacent winches 61, and between the plurality of winches 61 and the control device 65, with the control device 65 as a starting point and an ending point. And a plurality of power supplies that electrically connect the control device 65 and each of the plurality of winches 61, 61,... So that the plurality of winches 61, 61,. The communication cables 64, 64,. Thereby, since it is not necessary to connect every winch 61 which operates the control apparatus 65, control of the winch 61 can be made easier.

(4) The control device 65 is configured such that power can be individually provided to each of the power communication cable 64 connected to the start side and the power communication cable 64 connected to the end point. Thereby, even if the power communication cable 64 is cut off, it is possible to provide the winch 61 with a control signal for controlling the power and rotation from any power source. Thereby, reliability can be improved.

(5) The fishing gear lifting / lowering device 6 is configured to include a stopper 67 that is disposed at a predetermined distance from the weight 62 in the rope 63 and stops the winding of the winch 61. Thereby, by operating the winch 61 and winding the rope 63 to the position of the stopper 67, the stationary net 1 can be sunk against the sea surface, and the stationary net 1 can be easily protected from bad weather.

  Moreover, according to the raising / lowering method of the fishing gear of 1st Embodiment demonstrated above, there exist the following effects.

(6) The fishing gear installed using the float is the stationary net 1, and the lifting method of the fishing gear to be raised and lowered with respect to the sea surface is the winch fixing step for fixing the winch 61 to the stationary net 1, and the weight setting for sinking the weight 62 to the seabed. A rope installation step of winding the rope 63 connected to the weight 62 around the winch 61 in a state where a tension is applied; and a rope drawer for changing the pull-out length of the rope 63 by rotating the winch 61 And a length changing step. Accordingly, the winch 61 can be fixed to the newly installed stationary network 1 and the already installed stationary network 1. In addition, by rotating the winch 61, the length of the rope 63 can be changed to raise or lower the stationary net 1, so that the stationary net 1 can be easily protected from bad weather.

(7) In the winch fixing step, the winch 61 is fixed in the vicinity of the float 69 of the stationary net 1. Thereby, the bending of the stationary net 1 due to the weight of the winch 61 can be prevented, and the fish can be prevented from escaping from the stationary net 1.

(8) In the winch fixing process, the winch 61 is fixed to the sea surface S side upper end of the stationary net 1. Thereby, compared with the case where the winch 61 is attached to the side close to the seabed B, maintenance such as removal of attached organisms and parts replacement can be facilitated. Moreover, it can install easily with respect to the stationary network 1 already installed in the sea.

(9) The fishing gear lifting / lowering method includes a control device connection step of connecting a control device 65 capable of providing power and control signals to the plurality of winches 61, 61,... Using a power communication cable 64. did. Thereby, since it is not necessary to connect the control apparatus 65 for every winch 61, control of a winch can be made easier.

(10) The fishing gear elevating method includes a power communication cable connecting step of electrically connecting the plurality of winches 61, 61,... In sequence using the power communication cable 64. In the winch fixing step, the plurality of winches 61, 61, ... are fixed to the fishing gear at predetermined intervals along the fishing gear. Thereby, each of the plurality of winches 61, 61,... Is fixed to the stationary network 1 in a state of being connected using the power communication cable 64 in order, so that the power communication cable is connected to the fixed winch 61 later. 64 need not be connected. Therefore, it is possible to shorten the preparation time for operating the winch 61.

(11) The fishing gear lifting method includes a depth setting step of setting the depth of the winch 61 with respect to the sea surface. A control signal for rotating the winch 61 is transmitted to the winch so that the depth of the winch 61 becomes the depth set in the depth setting step. Thereby, the pull-out length of the rope 63 can be changed by rotating the winch 61 according to the control signal. As the pull-out length of the rope 63 changes, the depth of the winch 61 becomes the set depth. As a result, the stationary net 1 to which the winch 61 is fixed is also located at the set depth. By simply rotating the winch 61, the stationary net 1 can be sunk or floated according to the state of the sea surface, so that the stationary net 1 can be easily protected from bad weather.

[Second Embodiment]
Next, a second embodiment of a fishing gear lifting apparatus and fishing gear lifting method according to the present invention will be described with reference to FIGS. 8 and 9. In the description of the second embodiment, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted or simplified.
The fishing gear lifting / lowering device 6 and the fishing gear lifting / lowering method of the present embodiment are different from those of the first embodiment in that the fishing gear, which is an aquaculture facility 11 for cultivating scallops, oysters, seaweeds, and the like, is lifted and lowered.

First, the configuration of the aquaculture facility 11 will be described with reference to FIGS. 8 and 9.
The aquaculture facility 11 includes a hanging rope 12, an anchor 13, an adjustment ball 14, a pulling rope 16, a bottom ball 17, and a breeding tool 18.
Both ends of the hanging rope 12 are fixed to the seabed B, and the intermediate part M is raised toward the sea surface S, so that the hanging rope 12 is arranged in a convex shape with respect to the seabed B. The hanging rope 12 is arranged so that the raised intermediate portion M is substantially horizontal with respect to the sea surface S.

  The anchors 13 are respectively attached to both ends of the hanging rope 12. The anchor 13 is formed in a hook shape and fixes the hanging rope 12 to the seabed B.

  The adjustment balls 14 are floats, and a plurality of adjustment balls 14 are installed on the sea surface S. The adjustment ball 14 is disposed along the hanging rope 12. In the present embodiment, two adjustment balls 14 are installed.

The tow rope 16 is provided at the position of the adjustment ball 14. The tow rope 16 has one end connected to the adjustment ball 14 and the other end connected to the intermediate portion M of the tow rope 16. The tow rope 16 is formed with a sufficiently short length with respect to the depth from the sea surface S to the seabed B. In the present embodiment, two tow ropes 16 are provided in accordance with the number of adjusting balls 14 and are connected to both ends of the intermediate portion M of the hanging rope 12.
The bottom ball 17 is a float, and one or more bottom balls 17 are installed at a predetermined interval in the middle portion M of the hanging rope 12.

  The breeding tool 18 is a facility for holding aquaculture objects such as scallops, oysters, seaweeds, and the like, and is a fishing tool such as a round basket for breeding juvenile shellfish or a rope for hanging ears. That is, the breeding tool 18 is a fishing tool formed in a vertically long shape, and one end is attached to the hanging rope 12 and the other end is suspended toward the seabed B.

  According to the aquaculture facility 11 as described above, the hanging rope 12 is fixed to the seabed B by the anchors 13 attached to both ends. The hanging rope 12 is installed with the intermediate portion M lifted to the sea surface S side by the pulling rope 16 attached to the end of the intermediate portion M and the adjustment ball 14 installed floating on the sea surface S. . The hanging rope 12 is arranged without the intermediate portion M being bent by the buoyancy of the bottom ball 17. The breeding tool 18 is suspended from the middle portion M of the hanging rope 12 and installed.

Next, the fishing gear lifting / lowering device 6 will be described with reference to FIGS. 8 and 9.
The fishing gear lifting / lowering device 6 according to the present embodiment is a device that lifts and lowers the aquaculture facility 11 as described above, which is installed using the adjustment balls 14 and the bottom balls 17 as floats. The raising / lowering device 6 of the fishing gear is used to cultivate the aquaculture facility 11 by sinking the rope 12 for drooping down to the sea surface S and sinking the adjustment ball 14 into the sea in advance before approaching low pressure or a typhoon (bad weather). Reduce damage. Further, the fishing gear lifting / lowering device 6 lifts (raises) the drooping rope 12 that is sinking toward the sea surface S after passage of a low pressure or a typhoon (recovery from bad weather). Thereby, the raising / lowering apparatus 6 of a fishing gear floats the adjustment ball | bowl 14 to the sea surface S, and it enables it to resume aquaculture with a short period of time and little effort.

  The fishing gear lifting / lowering device 6 is installed by being fixed to the aquaculture facility 11 installed in advance in the aquaculture farm. Or the raising / lowering device 6 of a fishing gear is fixed to the aquaculture facility 11 before installing in a farm, and is installed with installation of the aquaculture facility 11. In the present embodiment, one lifting device 6 for fishing gear is installed for each aquaculture facility 11. In the present embodiment, the fishing gear lifting device 6 is installed on the hanging rope 12 of the aquaculture facility 11.

The fishing gear lifting device 6 includes a winch 61, a weight 62, a rope 63, a control device 65, and a power communication cable 64, similarly to the fishing gear lifting device 6 according to the first embodiment.
The winch 61 is different from the winch 61 of the first embodiment in that it is fixed to the hanging rope 12. One or more winches 61 are fixed in the vicinity of the bottom ball 17 at the intermediate portion M of the hanging rope 12. In the present embodiment, three winches 61 are fixed at a predetermined interval.
The configurations of the weight 62, the rope 63, the control device 65, and the power communication cable 64 are the same as those in the first embodiment except that the power communication cable 64 is provided along the hanging rope 12.

  According to the fishing gear lifting apparatus 6 as described above, the winch 61 is fixed to the hanging rope 12 and the weight 62 is sunk on the seabed B. Thus, the intermediate portion M of the hanging rope 12 is installed such that the distance from the seabed B depends on the drawing length of the rope 63 drawn from the winch 61. As shown in FIG. 8, during normal times (when the weather is good), the rope 63 is pulled out from the winch 61 and the adjustment ball 14 is floated on the sea surface S. Further, the intermediate portion M of the hanging rope 12 is adjusted so as to be positioned on the sea surface S side. On the other hand, as shown in FIG. 9, when bad weather is expected, the pulling length of the rope 63 is shortened by the operation of the winch 61, and the adjusting ball 14 is submerged in the sea. Further, the middle portion M of the hanging rope 12 is adjusted so as to be positioned on the seabed B side (deeper position). By operating all the winches 61, the entire intermediate portion M of the hanging rope 12 is positioned in the vicinity of the seabed B.

  The operation of the fishing gear lifting / lowering device 6 is the same except that the fishing facility 11 such as the hanging rope 12 and the adjusting ball 14 is levitated or subsidized instead of the stationary net 1 (box net 4) in the first embodiment. . Moreover, about the raising / lowering method of the fishing gear which concerns on this embodiment, it is the same except the object which fixes the winch 61 is the rope 12 for drooping.

According to the fishing gear lifting / lowering device 6 of the second embodiment described above, the following effects can be obtained.
(12) The fishing gear lifting / lowering device 6 is attached to the winch 61 fixed to the fishing gear which is the aquaculture facility 11, the weight 62 sunk on the seabed B, and connected to the weight 62 to apply tension to the winch 61. And a rope 63 to be wound. By rotating the winch 61, the pull-out length of the rope 63 is changed, so that the distance between the weight 62 and the aquaculture facility 11 can be changed. Specifically, before the bad weather occurs, by rotating the winch 61 and winding the rope 63, the distance between the weight 62 and the aquaculture facility 11 is shortened so that the aquaculture facility 11 sinks (descends) to the sea surface B side. ). On the other hand, after bad weather, by rotating the winch 61 and pulling out the rope 63, the distance between the weight 62 and the aquaculture facility 11 can be increased, and the fishing gear can be lifted toward the sea surface S. By simply rotating the winch 61, the aquaculture facility 11 can be sunk or floated according to the state of the sea surface S, so that the aquaculture facility 11 can be easily protected from bad weather.

  As mentioned above, although demonstrated about preferable one embodiment of the raising / lowering apparatus and raising / lowering method of the fishing gear of this invention, this invention is not restrict | limited to the above-mentioned embodiment, It can change suitably.

  For example, in the first embodiment, the form in which the winch 61 is fixed to the upper end portion of the stationary net 1 (box net 4) is described, but the present invention is not limited to this. For example, the pull-out length of the rope 63 may be changed by operating the winch 61 after fixing the winch 61 at an arbitrary position of the stationary net 1. Although the number of winches 61 has been described as six, the present invention is not limited to this, and the number of winches 61 can be changed as appropriate as long as the entire stationary net 1 (box net 4) can sink and rise (rise). is there.

  Moreover, in the said 1st Embodiment, the form which attaches the winch 61 to the box net | network 4 was demonstrated. The purpose of this is to preferentially protect the box network 4 because the mesh of the box network 4 is fine and the damage caused by the damage to the box network 4 is very large. On the other hand, it is more preferable that the winch 61 is attached to the athletic field 2 and the fence net 3 to protect the entire stationary net 1 from bad weather.

  Moreover, the control apparatus 65 is not limited to being mounted in the ship 66, You may be provided in the land. For example, a large-capacity power can be supplied by always connecting the power communication cable 64 to a control device (not shown) having the same configuration and function as the control device 65 and provided on land. At the same time, the winch 61 can immediately sink or rise (rise) against sudden weather changes.

  The plurality of winches 61, 61,... May be operated in order for each winch 61, with the start and completion of the operation of one winch 61 as one cycle. From the viewpoint of shortening the operation time of the winch 61, the plurality of winches 61, 61,... Are preferably operated simultaneously. For example, in the rope drawing length changing step, at least two of the plurality of winches 61, 61,. Thereby, the stationary net 1 can be quickly sunk and the fishing gear can be quickly protected from bad weather.

Further, instead of the depth setting step, an operation time setting step of setting the operation direction and the operation time of the winch 61 may be further provided before the rope drawing length changing step. In the rope drawing length changing step, the control device 65 may transmit a control signal for rotating the winch 61 to the winch 61 based on the operation direction and operation time of the winch 61. Thereby, the winch 61 can be operated and a fishing gear can be quickly sunk or floated without performing complicated settings.

  Further, when the stationary net 1 (box net 4) is sunk, the control device 65 may transmit a control signal for starting the operation of the winch 61 in the rope drawing length changing step instead of the depth setting step. . In the rope drawing length changing step, the control device 65 rotates the winch 61 to a position of a stopper 67 that is provided on the rope 63 at a position away from the weight 62 and stops the winding of the winch 61. It may be. Thereby, the winch 61 can be operated quickly and the stationary network 1 can be protected from bad weather.

  Further, in the first embodiment, one of one or more winches 61 fixed to the stationary net 1 (box network 4) is operated so that a part of the circumferential direction of the stationary net 1 (box net 4) is obtained. You may make it float or sink. As a result, fish that should not be captured and fish that should not be captured, such as juvenile tuna fish, turtles, and Echizen jellyfish caught in the stationary net 1 (box net 4) can be released from the stationary net 1 (box net 4). .

  Further, in the second embodiment, by raising the hanging rope 12 to the sea surface S, it is possible to easily remove the breeding tool 18 from the hanging rope 12. Specifically, the hanging rope 12 can be levitated to the sea surface S by freeing the hanging rope 12 from the anchor 13 and operating the winch 61 to increase the pulling length of the rope 63. .

1 Stationary Net 6 Fishing Equipment Lifting Device 61 Winch 62 Weight 63 Rope 64 Power Communication Cable 67 Stopper 69 Float S Sea Surface B Seabed

Claims (14)

A lifting device for fishing gear that raises and lowers fishing gear installed using a float, relative to the sea surface,
A winch fixed to the fishing gear,
A weight set on the sea floor,
A rope connected to the weight and wound around the winch in a tensioned state;
Lifting device for fishing gear comprising: The fishing gear is a stationary net;
The lifting device for fishing gear according to claim 1, wherein the winch is fixed to a sea surface side upper end portion of a stationary net. A plurality of the winches fixed to the fishing gear at predetermined intervals along the fishing gear;
A control device capable of providing a power supply and a control signal for controlling operation to the plurality of winches;
Provided between the adjacent winches, and between the plurality of winches and the control device, with the control device as a starting point and an end point, and connecting the plurality of winches between the starting point and the end point in the adjacent order. A plurality of power communication cables electrically connecting the control device and each of the plurality of winches;
The lifting device for fishing gear according to claim 1 or 2, further comprising:   The said control apparatus is a raising / lowering device of the fishing gear of Claim 3 which can provide an electric power separately to each of the said power communication cable connected to the origin side, and the said power communication cable connected to an end point side.   The fishing gear lifting / lowering device according to any one of claims 1 to 4, further comprising a stopper that is disposed at a position apart from the weight in the rope by a predetermined length and stops the winding of the winch. A method for raising and lowering fishing gear that raises and lowers fishing gear installed using floats,
A winch fixing process for fixing the winch to the fishing gear;
A weight sinking process for sinking a weight on the seabed;
A rope installation step of winding the rope connected to the weight with the winch wound in a tensioned state;
A rope pull-out length changing step of changing the pull-out length of the rope by rotating the winch;
A method for lifting and lowering fishing gear.   The said winch fixing method WHEREIN: The said winch is the raising / lowering method of the fishing gear of Claim 6 fixed to the vicinity of the float of fishing gear. The fishing gear is a stationary net;
The said winch is the raising / lowering method of the fishing gear of Claim 6 or 7 fixed in the sea surface side upper end of a stationary net in the said winch fixing process.   9. The fishing gear lifting / lowering method according to claim 8, wherein at least two of the plurality of winches are operated simultaneously in the rope lead length changing step. A power communication cable connecting step of electrically connecting the plurality of winches in sequence using a plurality of power communication cables after the weight setting step;
The fishing gear lifting / lowering method according to any one of claims 6 to 9, wherein, in the winch fixing step, the plurality of winches are fixed to the fishing gear at predetermined intervals along the fishing gear.   Before the rope installation step, and after the power communication cable connection step, a control device capable of providing a plurality of winches with a control signal for controlling power and operation, with the control device as a starting point and an end point, The fishing gear lifting / lowering method according to claim 10, further comprising a control device connection step of connecting to a plurality of winches using the power communication cable.   A depth setting step of setting a depth of the winch with respect to the sea surface, and in the rope pull-out length changing step, the control device is configured so that the depth of the winch becomes a depth set in the depth setting step. The fishing gear lifting / lowering method according to claim 11, wherein a control signal for rotating the fishing gear is transmitted to the winch.   An operation time setting step for setting an operation direction and an operation time of the winch is further provided, and in the rope drawing length changing step, the control device controls the rotation of the winch based on the operation direction and the operation time of the winch. The fishing gear lifting / lowering method according to claim 11, wherein a signal is transmitted to the winch.   In the rope pull-out length changing step, the control device transmits a control signal for causing the winch to start an operation, and the winch is provided on the rope at a position away from the weight by a predetermined length. The fishing gear lifting / lowering method according to claim 11, wherein the fishing gear is rotated to a position of a stopper that stops winding.

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