JPH02307001A - Detector for extension quantity of line of reel for fishing - Google Patents

Abstract

PURPOSE:To accurately detect the extension quantity of the line by performing arithmetic processing based upon the extension coefficient of the line, found from the relation between variation in the winding diameter of the line wound around a spool and the number of rotation of the spool, and the number of rotation of the spool. CONSTITUTION:While the line (f) is extended by rotating the spool 1, a number of rotation detecting circuit 4 detects the number of rotation of the spool 1 and inputs its rotation data to a CPU 10. The resistance value of a resistance detection part 7, on the other hand, varies with the winding diameter of the spool 1, but each analog value is converted by an A/D converter 9 into a digital value, which is outputted as winding diameter data to the CPU 10. The CPU processes the variation in the winding diameter and the number of rotation of the spool 1 and extracts the corresponding line extension coefficient in a conversion table stored on a memory device 11. Further, the line extension coefficient and the spool rotation data outputted by the number of rotation detecting circuit 4 are processed to calculate the extension quantity of the line (f), which displayed on a display 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a detection device that accurately measures and displays the amount of line fed out in a fishing reel.

[Conventional technology]

Generally, when fishing from a boat or deep sea, fishing is done while searching for the type of fish, but when the type of fish is detected using a fish signal, etc., the amount of line fed out is input into a depth storage device built into the reel. Then, the fishing line is let out in accordance with the count value input to the depth storage device when the fishing line is let out, and then stopped, so that the fishing line can reach the fish species again.

Conventionally, as a device for detecting the amount of the thread being fed out, a magnet is buried on one side of the spool, and a Hall element installed near the magnet detects the number of rotations of the spool, and this data is transmitted to a microcomputer. There is known a device that calculates the amount of thread being fed out by performing arithmetic processing on the data.

There is also known a device that presses a roller biased by a spring against the surface of the thread wound around a spool, and counts and processes the number of rotations of this roller to calculate the amount of thread to be fed out. .

[Problem to be solved by the invention]

Of the above-mentioned detection devices, the former ignores the number of threads and the number of threads, and calculates the amount of thread being fed out based only on the rotational speed of the spool itself. There was a considerable error between the amount of feed and the calculated value.

In addition, in order to eliminate such calculation errors, it is possible to enter the number of threads and perform correction calculations using a predetermined constant, but since the thickness of threads usually fluctuates depending on the environment in which they are used. However, it was still difficult to accurately display the actual amount of feed.

On the other hand, in the latter method, the amount of yarn being fed out is detected by the rotational speed of a roller pressed against the yarn winding surface on the spool, which varies according to the amount of yarn being fed out, so the calculation error is smaller than in the former. The wound diameter of the wound yarn is increased or decreased by the level winder, which does not move its unwinding position from side to side, while the roller measures a fixed position on the spool without moving from side to side. There is a problem in that the number of rotations is different from the actual number of rotations at the thread payout position. Further, there remains a problem that the roller slips on the guide thread and the amount of rotation of the roller and the running amount of the guide thread do not match, and that it is not possible to accurately detect the amount of payout of the guide thread.

The present invention calculates the payout coefficient of the thread from the relationship between the change in the winding diameter of the thread wound around the spool and the number of revolutions of the spool during that time, and performs arithmetic processing based on this coefficient and the number of revolutions of the spool. The object of the present invention is to provide a device that can accurately detect the amount of yarn being fed out.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention includes a rotation speed detection circuit that detects the rotation speed of the spool and outputs the data to the CPU, and a resistance value that changes depending on the winding diameter of the thread wound around the spool. an A/D converter that converts an electrical analog quantity corresponding to the resistance value into a digital quantity; a storage device that stores a conversion table of the thread payout coefficient; control, and further calculates the digital amount associated with resistance value fluctuations and the spool rotation speed during that time, extracts the corresponding yarn feed-out coefficient from the storage device, and extracts the thread feed-out coefficient from the storage device, as well as the spool input from this coefficient and the rotation speed detection circuit. A method was used in which the apparatus was constructed by a CPU that calculated rotation data and a display that displayed the amount of thread being fed out calculated by the CPU.

It should be noted that the resistance detecting section herein includes a variable resistor, a strain gauge, and the like.

[For production]

The detection device of the present invention rotates the spool to pay out the thread, and at the same time detects the rotation speed of the spool using a rotation speed detection circuit, and inputs this rotation data to the CPU. On the other hand, the resistance value of the resistance detection section changes depending on the winding diameter of the spool, and the analog quantity at each detection is converted into a digital quantity by an A/D converter and outputted to the CPU as winding diameter data. C.P.
At U, the fluctuation of the S diameter and the number of revolutions of the spool during this period are calculated, the corresponding thread letting-out coefficient is extracted from the conversion table stored in the storage device, and this thread letting-out coefficient and the rotation speed are calculated. It has a function of calculating the amount of thread being fed out by calculating the spool rotation data outputted from the number detection circuit, and displaying this on the display.

〔Example〕

Hereinafter, the configuration of the present invention will be described in more detail based on an embodiment in which a variable resistor is used in the resistance detection section. In FIG. A magnet is buried in one side of 1, 3 is a Hall element placed close to the outer periphery of spool 1 to face magnet 2, and 4 is a rotation speed detection circuit, which detects the magnet as the spool l rotates. 2 passes through the detection area of the Hall element 3 to detect the number of revolutions of the spool. Reference numeral 5 denotes a rotary arm whose tip is positioned on the spool 1, and is brought into contact with the winding surface of the guide thread ffl wound around the spool l by the solenoid 6. Further, 7 is a variable resistor provided at the base of the rotary arm 5, which converts the rotational position of the rotary arm 5 into an electrical resistance value. 8 is an amplifier that amplifies the current or voltage (analog amount) corresponding to the above resistance value, and 9 is an A/D converter that converts the amplified analog amount into a digital amount and converts it to CPtJl.
o is output as winding diameter data.

Reference numeral 11 denotes a storage device that stores a conversion table for comparing a numerical value obtained from the relationship between the amount of change in the winding diameter at two certain points in time and the number of revolutions of the spool between them with the thread payout coefficient.

Note that the payout coefficient of the thread Tf) is a function determined based on the relationship between the diameter of the thread and the number of rotations of the spool, and a large number of such coefficients are stored in advance in the conversion table.

The CPU 10 controls the operation and timing of the solenoid, calculates the diameter data and rotation data, and extracts the corresponding thread payout coefficient from the conversion table.
Furthermore, this coefficient and the rotation data are calculated and processed to obtain an accurate amount of yarn to be fed out.

Reference numeral 12 denotes a display that digitally displays the amount of the yarn (fl) being fed out, and 13 is a motor control unit that stops the motor 14 when the arbitrarily set amount of yarn is fed out.

Next, the operation of the thread payout detection device of the present invention will be described based on the block diagram showing the data flow shown in FIG. Magnet 2 rotates with spool l by
The rotational speed of the spool is detected by counting the number of times that the spool passes through the loading area of the Hall element 3, and this rotational data is sequentially transmitted to the CP.
It is input to Ul0 and accumulated.

On the other hand, on the side that detects the winding diameter of the spool, a signal is sent from the CPU 10 to the solenoid 6 at the same time as the spool 1 rotates, and the rotating arm 5 is brought into contact with the winding surface of the thread (fl) wound around the spool. After amplifying the electrical analog quantity corresponding to the resistance value of the variable resistor 7 at this point in time with the amplifier 8,
/D converter 9 converts it into a digital quantity, inputs it to CPU 1O as winding diameter data, and stores it.
return to its original position. After a certain period of time,
By operating the solenoid 6 again, the rotating arm 5 is moved to the thread ffl.
CPUl0 is brought into contact with the electrical analog quantity by the variable resistor 8 at this point as the winding diameter data by the above-mentioned operation.
11VL input to 11 is combined with the previous data to calculate the amount of variation in the spool rotation speed and winding diameter during that time, and the corresponding thread payout coefficient is extracted from the conversion table stored in the storage device 11. do. Further, the yarn payout coefficient and the spool rotational speed inputted from the sequential rotational speed detection circuit 4 are calculated to calculate the amount of yarn to be fed out, and this is displayed numerically on the 11th display 12.

Furthermore, based on the result of this calculation, the motor 14 is automatically stopped by the motor control circuit 13 when a preset yarn payout amount is reached.

Note that the thickness of the thread (f) may vary depending on the environment in which it is used, so by repeating the winding diameter detection operation described above at regular intervals, a more accurate amount of the thread to be fed can be determined. can be detected.

In addition, there are various mechanisms that can be used to detect the winding diameter of the thread. For example, as a means for pressing the rotary arm 5 against the winding surface of the thread, in addition to the solenoid described above, there may be a mechanism for pressing the rotating arm 5 against the winding surface of the thread, such as during a plunge or by pressing with a finger. It may also be a configuration.

In addition, the rotating arm 5 is always connected to the spool 1 by using spring pressure or the like.
A gate is provided between the A/D converter 9 and the CPU10, and the CPU is connected only when it receives signals input from the CPU at regular intervals.
A structure may be adopted in which a digital amount from the A/D converter 9 is output to lO.

Furthermore, a strain gauge is attached as a resistance detection section in place of the variable resistor 7 in the above example, and the base of the rotary arm 5 is brought into contact with this strain gauge via a cam etc., so that the strain is detected according to the amount of rotation of the rotary arm. The configuration may be such that the resistance value is detected by distorting the gauge.

〔Effect of the invention〕

As described above, the device for detecting the amount of line being fed out in a fishing reel of the present invention calculates the variation in the winding diameter of the line wound around the spool and the number of revolutions of the spool during that time, and calculates the amount of line being fed out. Since it calculates a coefficient and calculates this coefficient and the rotational speed of the spool, it has the excellent effect of accurately detecting the actual amount of thread being fed out, regardless of the number of threads. It is something to do.

In addition, when measuring the winding diameter periodically at appropriate intervals, even if the thickness of a single thread changes continuously, it can be handled accurately, and the error between the actual measured value and the displayed value can be reduced. It has been possible to provide a thread payout amount detection device that has many effects such as being extremely small.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the outline of this device, and FIG. 2 is a block diagram showing the flow of data. In addition, in the figure 1... Spool, 4... Rotation detection circuit, 7
...) resistance detection unit, 9... A/D converter, IO
...CPU, 11...Storage device, 12...Display. that's all

Claims (1)

[Claims] 1. Detect the rotation speed of spool 1 and send the data to the CPU
10, a resistance detection section 7 whose resistance value changes according to the winding diameter of the thread (f) wound around the spool 1, and an electrical analog corresponding to the resistance value. An A/D converter 9 that converts the amount into a digital amount, a storage device 11 that stores a conversion table of the thread payout coefficient, and a storage device 11 that controls the measurement interval of the resistance value and further converts the digital amount associated with the fluctuation of the resistance value and the interval between them. A CPU 10 calculates the spool rotation speed and extracts the corresponding thread payout coefficient from the storage device, and calculates this coefficient and spool rotation data inputted from the rotation speed detection circuit 4. 1. A display 12 for displaying the amount of line drawn out in a fishing reel.