JPH01307612A - Measuring instrument for fishing line length of reel for fishing - Google Patents

Abstract

PURPOSE:To measure the fishing line length with high accuracy without executing an input operation of thickness of a fishing line, overall length, etc. by detecting a reflected light of a spot light which has irradiated the surface of the spool diameter of a spool by a position sensor, converting it to a signal being proportional to the spool diameter and executing a calculation, based on the speed of revolution. CONSTITUTION:A spool diameter detecting device consists of a light emitting element 19, a position sensor 22, a spool diameter detecting circuit 23, etc., the surface of the outside diameter of a fishing line 3 which is wound round to a spool 2 from the light emitting element 19 is irradiated by a light beam, and its reflected light is detected by the position sensor 22, and an electric signal being proportional to the spool diameter is obtained. This signal is converted to a digital value by an A/D converter 17 and inputted to a CPU 9. On the other hand, the rotating direction of the spool 2 is detected by a sensor 15, and by counting by an up/down counter 16, based on the output of the sensor 15, the number of revolution at the time of feeding or winding the fishing line is detected. The CPU 9 executes a calculation from this speed of revolution and the data quantity being proportional to the spool diameter, and displays the feeding line length or the winding line length of the fishing line 3 on a digital indicator 5.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a fishing reel line length measuring device, more specifically, it is a fishing reel line length measuring device, and more specifically, it is capable of measuring with high accuracy the amount of fishing line being fed out and the amount of reeling based on the rotational speed of the spool. This invention relates to a yarn length measuring device.

[Conventional technology]

With modern fishing reels, the length of the fishing line from the spool (7) is measured, and the length of the reel is measured to accurately lower the tackle to the shelf where the fish are, or for cast fishing, measure the flight distance of the tackle. You can check the point where the device was introduced.

- Conventionally, as a method of measuring the amount of fishing line being fed out and reeled in, as shown in Japanese Patent Application Laid-Open No. 60-244247, etc., the thickness of the line is set as a parameter in a microcomputer built into the reel body. Data such as the relationship between the amount of thread to be wound, the spool winding diameter, and the total length of the thread are entered from the keyboard, and when measuring thread length, the rotation of the spool is detected by a sensor, and the pulse signal from this sensor is counted by a counter. Then, this counted value is input into the microcomputer every calculation cycle, and a yarn length calculation formula is selected according to the yarn diameter to be used, and the yarn length is calculated based on the calculation formula, and the calculation result is displayed on the display. By outputting the information, the length of the line to be fed out or wound up can be digitally displayed on a display for the convenience of anglers.

[Problem to be solved by the invention]

However, with the conventional line length measuring device for a fishing reel as described above, each time the line used changes, the line thickness data and the total length data of the line wound on the spool must be entered using a keyboard. The input operation becomes complicated, and the yarn length calculation formula is a quadratic or cubic formula, so it takes a long time to calculate the yarn length on a microcomputer with low computing power, resulting in a loss of investment. When the yarn payout speed is fast, the yarn length calculation speed cannot keep up with the yarn payout speed, and the yarn length, which changes from moment to moment, cannot be displayed immediately. Furthermore, if the yarn length calculation formula is simplified, there is a problem that accurate yarn length measurement becomes impossible.

The present invention solves the above-mentioned problems, and eliminates the need for inputting line thickness data and line total length data, and also enables highly accurate line length measurement. The purpose of the present invention is to provide a reel yarn length measuring device.

[Means to solve the problem]

A fishing reel line length measuring device according to the present invention includes a reel body, a spool rotatably supported by the reel body and around which a fishing line is wound, a sensor for detecting rotation of the spool, and a sensor for detecting rotation of the spool. an up/down counter that counts up and down a pulse signal output from the spool; a light emitting unit that irradiates a spot light onto the surface of the bobbin diameter of the spool; and a position sensor that detects the position of the reflected light reflected from the surface of the bobbin diameter. a bobbin diameter detecting means for detecting the bobbin diameter and converting it into an electric signal proportional to the bobbin diameter, and a means for calculating the thread length based on the bobbin diameter data from the bobbin diameter detecting means and the counted value of the up/down counter. , and a display for displaying the yarn length calculated by the calculation means.

[For production]

In the present invention, when the light emitting means illuminates the bobbin diameter surface of the spool, the position of the spot reflected light is detected by the position sensor of the bobbin diameter detection means and can be converted into a signal proportional to the bobbin diameter. If the yarn length is calculated by a calculation means based on the rotation speed corresponding to the rotation speed for yarn reeling or winding counted by the up/down counter, the length of the unreeled yarn and the length of the winding yarn can be quickly and easily determined. It can be determined with high accuracy, and parameters such as the thickness of the thread and the total length of the thread are not required when measuring the thread length, improving the operability of the reel.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 3 show an embodiment of the present invention,
In Fig. 2, 1 is a reel body, 2 is a spool rotatably attached to the reel body 1, and this spool 2
Fishing line 3 is wound around. Reference numeral 4 denotes a waterproof flat box integrally attached to the upper surface of the reel main body 1, and the upper surface panel 4a of this box 4 is provided with a display 5 and a bobbin diameter detecting device 6. Furthermore, a microcomputer for calculating the yarn length, a battery (both of which will be described later), and the like are watertightly housed in the box 4. 7 is spool 2
This is the handle that rotates the winder.

In FIG. 1, 8 is a microcomputer that performs yarn length calculation, yarn length display, and data writing control, and this microcomputer 8 controls and manages program memory, data memory, and input/output devices. A CPU that executes calculations and transfer processing necessary to process a job (
It is equipped with a central processing bag W) 9, a ROM 10 that stores a thread length calculation processing program and a thread insertion calculation formula, a RAM II that stores data such as calculation results in the CPU 9, an input interface 12, and an output interface 13. CPU 9 via bus 14. It is connected to the.

15 is a sensor for detecting the rotation and direction of the spool 2, and is a pair of reed switches 15a.

15b and a plurality of magnets 15C fixed to the inner circumferential edge of the spool 2 in opposition to the magnets 15b. The rotation and reversal determination signals are input to the CPU 9 through the input interface 12, and the built-in up/down counter 16 is set to an up-count or down-count state, and the reed switches 15a and 15b are set to 0N.
By inputting the rotation pulse of the spool 2 obtained by the 10FF to the up/down counter 16 through the input interface 12, the counter is made to count up or down. In addition, the input interface 12 includes a bobbin diameter detection device 6 A-
It is connected via a D converter 17.

A digital display 5 for displaying yarn length is connected to the output interface 13 via a decoder 18.

The bobbin diameter detection device 6 includes a light emitting element 19 made of a light emitting diode or the like that is turned on by a battery power source (not shown), and a light emitting element 19 that collects light from the light emitting element 19 to form a black light on the surface of the thread of the spool 2. a condenser lens system 20, a condenser lens system 21 that converges a point image of light reflected on the surface of the winding yarn, a position sensor 22 that receives the black light image of this convergent lens system 21, and an output signal of this position sensor 22. and a bobbin diameter detection circuit 23 which extracts a voltage proportional to the diameter of the bobbin winding of the spool 2 from the bobbin diameter detection circuit 23, and the output voltage of the bobbin diameter detection circuit 23 is converted into a digital quantity by an A-D converter 17 and is input to the CPU 9. It has become.

The bobbin diameter detection circuit 23 includes position sensors (two anodes A+ and Az and one cathode C) as shown in
22 anodes A (consisting of photodiodes with
1 or A2, and the non-inverting input terminals are connected to ground, and the output voltage of each operational amplifier 24, 25 is V1. Arithmetic units 26 and 27 take out the sum and difference of V2, and the sum voltage V of the arithmetic unit 26, +
The divider 28 calculates the ratio between the voltage V2 and the voltage difference between the arithmetic unit 27 and the voltage V, -V.

In addition, in the position sensor 22, the photocurrent II, 12 (μA) flowing to the anodes A+ and Ax depends on the position of the spot light incident between the anodes A, , A.
has the characteristics shown in FIG. That is, as the incident spot light moves from the anode A to the A2 side, the photocurrent 1 flowing through the anode A decreases linearly, and on the contrary, the photocurrent I2 flowing through the anode A2 increases linearly. However, it has a characteristic of crossing at the center point a between the anodes A1 and A2. Therefore, the ratio 1+/It of both photocurrents is proportional to the position where the incident spot light hits, that is, the distance d, and if this photocurrent ratio I, /I is found, then the distance i! of the incident spot light! ild, that is, the pincushion diameter is determined.

Therefore, in the pincushion diameter detection circuit 23 shown in FIG.
4.25, the voltage is changed to V, , V, and further the arithmetic unit 26.
．． 27, the respective sums V and +V.

and the difference V, +V is calculated, and the divider 28 calculates V+ -Vz-
/ V l + V 2 is calculated and this becomes the pincushion diameter. Incidentally, the pincushion diameter detection circuit 23 and the A-D converter 17 can be integrated into a (2) chip LSI.

Next, the yarn length measuring operation of this embodiment configured as described above will be explained according to the processing procedure shown in FIG.

When the program shown in FIG. 5 starts, first, in step 310, it is determined whether the fishing line 3 is let out. Here, if it is determined that the fishing line 3 is being fed out, the spool 2 is rotated in the forward rotation direction as the fishing line 3 is being fed out, so a signal in the forward rotation direction is input from the sensor 15 to the CPU 9 through the input interface 12. As a result, the up/down counter 16 is set in the up direction, and the pulse signal for each rotation of the spool output from the sensor 15 as the spool 2 rotates is input to the up/down counter 16 through the input interface 12. and are sequentially incremented (step 511).

In the next step S12, the count contents N of the up/down counter 16 are loaded into the CPU 9 at every calculation cycle of the microcomputer 8, and further, digitally converted data corresponding to the pincushion diameter output from the pincushion diameter detection circuit 23 is loaded. (Step 512), and in the next step S13, L
-π·D−N is calculated, and the calculation result is outputted to the digital display 5 through the output interface 13 and decoder 18, and the length of the drawn-out fishing line 3 is digitally displayed (step 514).

Note that as the diameter of the pincushion changes, the points at which the spot light from the light emitting element 19 is imaged on the surface of the diameter of the pincushion through the condenser lens system 20 are PI, P2. If it changes to P3, this point P,
The incident spot light that is reflected from ~P, passes through the focusing lens system 21, and is imaged on the position sensor 22 is B+, B2.
, B3, and the voltage ratio output from the position sensor 22 in proportion to this position is output as the pincushion diameter.

On the other hand, if it is determined in step S10 that the fishing line 3 is being wound up, the spool 2 is rotated in the reverse direction as the fishing line 3 is wound, and therefore a signal in the reverse direction is sent from the sensor 15 to the input interface. CPU through 12
9, thereby setting the up/down force counter 6 in the down direction, and at the same time, the pulse signal output from the sensor 15 as the spool 2 rotates in the reverse direction is taken into the up/down counter 16, and its down counting operation (step 515). Then, in the next step S16, the count contents Na of the up/down counter 16 are taken into the CPU 9 every calculation cycle of the microcomputer 8, and La=
By performing the calculation of rr-D-Na, the winding yarn length,
In other words, the yarn length L is obtained by subtracting the winding yarn length from the unreeled yarn length.
a and output it to the digital display 5 to determine the yarn length L.
A is digitally displayed (step 517).

Note that the bobbin diameter detection device 6 in the present invention is not limited to the position sensor made of a photodiode and a dome as shown in the embodiment, but may be a line type position sensor using a CCD.

〔Effect of the invention〕

As described above, according to the present invention, spot light is irradiated onto the surface of the spool with a diameter of the bobbin, these reflected spot lights are made incident on the position sensor, and the position sensor detects the reflected position as the diameter of the bobbin varies. Since this is a so-called direct reading method that converts this into an electrical signal to detect the bobbin winding, there is no need to input thread thickness data or thread total length data. In addition to being easier to operate, the line length calculation formula is a linear formula, so even a microcomputer with normal calculation speed can instantly and accurately measure the line length for casting (within ±0.1 m). There is.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a yarn length measuring device in an embodiment of the present invention. FIG. 2 is a perspective view of a fishing reel equipped with the line length measuring device of this embodiment. FIG. 3 is a configuration diagram of the bobbin diameter detection circuit in this embodiment. FIG. 4 is a charging flow characteristic diagram of the position sensor in this embodiment. FIG. 5 is a flowchart showing the procedure for yarn length measurement and display in this embodiment. [Explanation of symbols of main parts] 1... Reel body 2... Spool 3... Fishing line 5... Digital display 6... Bottle diameter detection device 7... Handle 8... Micro Computer 9...CPU 15...Rotation detection sensor 16...Up/down counter 17...A-D converter 19...Light emitting element 20...Condenser lens system 21...Condenser lens System 22... Position sensor 23... Bottle diameter detection circuit. Figure 3

Claims (1)

[Claims] (1) A reel body, a spool rotatably supported by the reel body around which fishing line is wound, a sensor that detects the rotation of this spool, and a pulse signal output from this sensor that counts up and down. an up/down counter, a light emitting means for irradiating a spot light onto the surface of the bobbin diameter of the spool, and a position sensor that detects the position of the reflected light from the surface of the bobbin diameter to generate an electric signal proportional to the bobbin diameter. A bobbin diameter detecting means for conversion, a means for calculating a thread length based on the bobbin diameter data from the bobbin diameter detecting means and the counted value of the up/down counter, and displaying the thread length computed by the computing means. A fishing reel line length measuring device consisting of a display device and a display device.