JPS621898Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a speed control device for a motion mechanism that generates a jerking motion on a fishhook submerged in the sea in an automatic squid fishing machine, and in particular, the speed control device for a motion mechanism that produces a jerking motion on a fishhook submerged in the sea. We aim to provide a device that can freely set the lifting speed in two stages and that can be hoisted at a constant high speed at depths where the scooping movement is unnecessary.

That is, as shown in FIG. 1, a fishing line 3 is led out from an automatic squid fishing machine 2 mounted on a squid fishing boat 1, a fishing hook 4 is attached to this fishing line 3, and the fishing hook 4 is sunk to a predetermined depth using a weight 5. When winding up the fishing line 3, the fishing line 3 is alternately given two rising speeds, a high speed and a low speed, to give the fishing hook 4 a jerking motion and raise it. It is common practice to collect the fish on the hook 4 and catch it, and therefore, the trajectory of the upward movement of the fish hook 4 during the fishing motion is as shown in Figure 2, where the vertical axis represents water depth and the horizontal axis represents time. . However, with conventional squid fishing machines, the high and low rising speeds of the squid movement are fixed, so
Shakuri movements had become a regular pattern. In addition, even if the fishing line 3 is wound up considerably and the fishing hook 4 reaches a depth where it is unnecessary to make a clawing motion, the system is designed to perform the same clawing motion or wind it up at the same constant speed. Efficiency was decreasing. In view of these points, the present invention makes it possible to vary the high and low rising speeds of the fishing motion so that the most effective fishing motion pattern can be selected depending on the depth at which the fishing hook is sunk and the type of squid. It automatically stops fishing at unnecessary depths and allows the fishing line to be quickly reeled in at a preset speed.

Hereinafter, one embodiment of the present invention will be explained using FIGS. 3 and 4. In FIG. ) is connected to a group of variable resistors (described later), and this variable resistor sends out an arbitrary (-EB) voltage signal that serves as a speed reference. A current supplied to the motor 9 detected by a current detector 8 is detected in the conversion circuit 7, and this current is converted into a DC voltage by a diode bridge _D1 . A filter capacitor C, a first conversion resistor VR ₁ , and a series circuit of a transistor TR and a second variable resistor VR ₂ are connected in parallel to the output terminal of this diode bridge D ₁ . When the voltage applied across the diode ZD exceeds the Zener voltage, the Zener diode ZD becomes conductive and the transistor TR becomes conductive.
A current flows through the second variable resistor VR ₂ , thereby generating a voltage EA across the sliding piece. This variable resistor VR ₂
and the variable resistor in the speed setting device 6 are connected in series, and the voltage deviation ((EA+-EB)) between the two is taken out from the sliding piece of the variable resistor _VR2 . on the other hand,
The rotational speed of the motor 9 is taken out as the output of the tachometer generator 10, and converted into a DC voltage EC proportional to the rotational speed of the motor 9 in the rectifier circuit _D2 .
EB)) are input to the operational amplifier 11, and the deviation between the two is sent to a synchronization gate circuit (not shown) to control the power supplied to the motor 9. That is, when the current supplied to the motor 9 is below a certain current value, the conversion circuit 7 does not operate, and the operational amplifier 11 receives the voltage -EB set by the speed setting device 6 and is proportional to the rotational speed of the motor 9. DC voltage EC is applied, and the synchronous gate circuit operates to control the power supplied to the motor 9 so that the deviation between -EB and EC in the operational amplifier 11 becomes zero.
The rotational speed of is maintained at the set value determined by the speed setting device 6. Next, when a squid is caught on the fishing line 3, the load torque of the motor 9 increases according to the amount, and the motor supply current increases, and when the current value detected by the current detector 8 exceeds a constant current, the Zener diode ZD
Then, the transistor TR becomes conductive, and a voltage EA+-EB and a voltage EC are applied to the operational amplifier 11.The operational amplifier 11 extracts the deviation and sends it to the synchronization gate circuit. In order to make the output of the operational amplifier 11 zero in response to an increase in the voltage EA, the motor 9 is operated so as to reduce the voltage proportional to the rotational speed of the tachogenerator 10.
The system controls the power supplied to the system to reduce its rotational speed and prevent the squid from coming off the hook.

In order to produce the hook motion using such a circuit, the speed setting device 6 of the present invention is constructed as shown in FIG. 4. In this figure, 12 is a rising movement selector switch connected to the variable resistor VR ₂ of the conversion circuit 7, and a rising movement selection terminal 12a.
and a non-shake motion selection terminal 12b, the non-shake motion selection terminal 12b is connected to the first ascending speed setting variable resistor _VR3 , and the scratch motion selection terminal 12a is connected to the shake motion on/off switch 13. has been done. The shovel motion on/off switch 13 has a shovel motion ON terminal 13a and a shovel motion OFF terminal 13b, and the switch 13 is linked to a water depth gauge, so that while the fishing hook 4 is below the required water depth, the shovel motion is not activated. The movement on/off switch 13 is put on the side of the shoveling movement on terminal 13a, and when the fishing hook 4 comes out above the above-mentioned required water depth, the switch 13 is put on the side of the digging movement off terminal 13b.
A second ascending speed setting variable resistor VR ₄ is connected to the discharging motion OFF terminal 13b, and a discharging ascending speed changeover switch 1 is connected to the discharging motion ON terminal 13a.
4 is connected. This crane lift speed changeover switch 14 has a high lift speed terminal 14a and a low lift speed terminal 14b.
A variable resistor VR ₅ for setting a high rising speed and a variable resistor VR ₆ for setting a low rising speed are connected to the switch 14, and the switch 14 is interlocked with a cam switch consisting of a rotary cam, so that as the cam switch rotates, the resistance is constant. The connection is switched between the high rising speed terminal 14a and the low rising speed terminal 14b every time. Incidentally, each of the above-described variable resistors VR ₃ to VR ₆ for setting the rising speed is connected to the negative power supply -ECC.

In use, the rising speed of the fishhook 4 is set by the variable resistors VR ₃ to VR ₆ for setting the rising speed. Variable resistor especially for setting high rising speed
In VR ₅ , a high rising speed of the shakuri movement is set,
The low rising speed setting variable resistor VR ₆ sets the low rising speed of the shovel movement. Then, when the non-shaking motion selection terminal 12b is selected in the ascending motion changeover switch 12 when winding up the fishing line 3, the variable resistor VR ₃ is connected to the negative power source -ECC and the conversion circuit 7.
The voltage -EB corresponding to the rising speed set by variable resistor VR ₃ is output, and the third
As is clear from the explanation of the figure, the motor 9 rotates at the speed set by the variable resistor VR ₃ , and the fishhook 4 rises without any jerking movement. In addition, the upward movement selector switch 12 is connected to the upward movement selection terminal 1.
When it is set to the 2a side, the fishing hook 4 rises while producing a swiveling motion, since the swiveling motion on/off switch 13 is set to the swiveling motion on/off switch 13a side by the depth gauge. In other words, when the cam switch causes the fish hook rising speed selector switch 14 to enter the high rising speed terminal 14a, a voltage -EB corresponding to the high rising speed set by the variable resistor _VR5 is output, causing the fishing hook 4 to rise rapidly. Then, when the fish hook rising speed selector switch 14 enters the low rising speed terminal 14b, a voltage -EB corresponding to the low rising speed set by the variable resistor VR ₆ is output, and the fishing hook 4 rises at a slow speed. As a result of this repetition, the fishhook 4 rises while producing a screeching motion as shown in FIG. Then, when the fishing hook 4 reaches a required water depth, for example, the water depth A in FIG. , variable resistor VR ₄
The fishing line 3 is wound up at the speed set in .

According to the present invention, however, the winding speed of the fishing line can be reduced in accordance with the amount of squid caught on the fishing line, thereby preventing the squid from coming off the fishing hook. Then, a cam switch is interlocked with a shovel ascending speed changeover switch having a terminal for high ascending speed and a terminal for low ascending speed, and when the discharging motion is selected, the cam switch switches the discharging ascending speed changeover switch to the above-mentioned high ascending speed terminal. In order to change the rising speed of the fishhook at fixed time intervals and thereby perform the fishing motion by varying the rising speed of the fishing hook, the above-mentioned high rising speed terminal and low rising speed terminal are connected to the variable rising speed setting respectively. A resistor is connected and the rising speed is set by this variable resistor.
It is useful because it allows you to freely change the rising speed of the low speed and create the most appropriate shaving movement pattern depending on the type of squid and the water depth.

By linking the diving motion on/off switch to the depth gauge, when the fishing hook is at the depth where squid are swimming, the fishing motion is generated to generate squid and capture the squid, and when the fishing hook has passed the swimming depth Since the hook movement is stopped and the fishing rod is raised, there is an advantage that the hook movement can be automatically stopped at an unnecessary depth and the hook can be quickly hoisted onto the boat. Moreover, the rising speed of the fishhook after the fishing motion has stopped can be freely set to any rising speed using a variable resistor for setting the rising speed connected to the motion OFF terminal of the fishing motion on/off switch.For example, by increasing the rising speed, the fishing hook It can speed up hoisting and increase operational efficiency. Especially the second
The variable resistor for setting the rising speed is provided separately from the first variable resistor for setting the rising speed so that it can be switched by the rising movement changeover switch, and this can be adjusted independently. In the case of normal winding only when the winding is not carried out, the rising speed is set by the first rising speed setting variable resistor,
Since the hoisting speed after rising from a certain water depth when performing a shoveling motion can be independently set using the second variable resistor for setting the rising speed, it is possible to effectively adjust the hoisting speed according to the rising speed during the shoveling motion. By setting the reeling speed, you can expect to effectively capture squid and improve operational efficiency.

[Brief explanation of the drawing]

Figure 1 shows how the squid fishing machine is used, Figure 2 shows how the squid fishing machine is used.
FIG. 3 is a graph showing a shovel movement pattern, FIG. 3 is a block circuit diagram showing an embodiment of the present invention, and FIG. 4 is a circuit diagram of a speed setting device. D ₂ ... Rectifier circuit (speed detector), 3... Fishing line, 6... Speed setter, 7... Conversion circuit (converter), 8... Current detector (converter), 9... Motor, 10...Tachogenerator (speed detector),
DESCRIPTION OF SYMBOLS 11...Operation amplifier, 12...Rising motion selection switch, 12a...Screening motion selection terminal, 12b
...Non-shaking motion selection terminal, 13...Shaking motion on/off switch, 13a...Shaking motion on terminal, 13b...Shaking motion off terminal,
14...Screen lift speed selection switch, 14a
...Terminal for high rising speed, 14b...Terminal for low rising speed, VR ₃ to BR ₆ ...Variable resistor for setting rising speed.

Claims (1)

[Scope of utility model registration request] A converter that outputs a signal with a value corresponding to the exceeded value when the current supplied to the motor exceeds a certain value, a speed detector that detects the rotational speed of the motor, and a negative and a speed setting device that outputs a signal, and controlling the rotational speed of the motor so that the sum of the outputs of the converter, speed detector, and speed setting device becomes constant. In the device, the speed setting device includes an ascending motion changeover switch connected to an output end and having a shovel motion selection terminal and a non-screw motion selection terminal;
a first ascending speed setting variable resistor connected between the non-scrolling motion selection terminal and the power source; a switch connected to the scrambling motion selection terminal and having a clawing motion on terminal and a screeching motion off terminal; and a shovel motion on/off switch linked to the water depth gauge such that when the fishing hook is below the required water depth, the push motion ON terminal is switched to the push motion ON terminal, and when the fishing hook is above the required water depth, it is switched to the push motion OFF terminal. a second ascending speed setting variable resistor connected between the movement OFF terminal and the power source; a switch connected to the shifting motion ON terminal and having a high ascending speed terminal and a low ascending speed terminal; a screw lift movement selector switch connected to a cam switch so as to switch at fixed time intervals on both terminals, and a variable resistor for setting a high lift speed connected between the high lift speed terminal and the power supply. and a variable resistor for setting a low rising speed connected between the low rising speed terminal and the power source, the second variable resistor for setting the rising speed is connected to the first variable resistor. A hoisting speed control device for an automatic squid fishing machine which can be adjusted independently of a variable resistor for setting the ascending speed.