JP2806427B2 - Fishing reel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing reel and, more particularly, to a fishing reel provided with a line length measuring device capable of measuring a fishing line payout amount and a winding amount with high accuracy.

[0002]

2. Description of the Related Art In recent fishing reels, the length of reeling out / winding of a fishing line from a spool is measured, and a device is accurately placed on a shelf where fish are located.
By measuring the flight distance of the device, you can check the point at which the device was inserted. Conventionally, as a method of measuring the amount of reeling-out and winding of a fishing line, for example, Japanese Patent Application Laid-Open No. Sho 60-2
As shown in Japanese Patent No. 44247, etc., a microcomputer incorporated in the reel body inputs data such as a relational expression of a thread winding amount and a spool thread diameter having a thread thickness as a parameter and a total length of the thread from a keyboard. When measuring the yarn length, the rotation of the spool is detected by a sensor, the pulse signal from this sensor is counted by a counter, and this count value is taken into a microcomputer at each calculation cycle, and the yarn length according to the used yarn diameter is calculated. By selecting a calculation formula, calculating the yarn length based on the calculation formula, and outputting the calculation result to a display, the payout or winding yarn length is digitally displayed on the display and provided to the angler's benefit. Was like that.

However, in the above-described conventional line length measuring device for fishing reels, every time the used line is changed, the data of the line thickness and the total length of the line wound on the spool are operated by operating the keyboard each time. The input operation becomes complicated, and the yarn length calculation formula is 2
Since the following formula or cubic formula is used, it takes a long time to calculate the thread length with a microcomputer having a low computing capacity. Cannot catch up, and the thread length that changes every moment cannot be displayed immediately. Further, if the yarn length calculation formula is simplified, there is a problem that accurate yarn length measurement becomes impossible.

The applicant of the present invention has previously developed a fishing reel line length measuring device which solves such a problem, and discloses this in Japanese Patent Application No. 63-137774. Filed as a measuring device. A fishing reel line length measuring device according to the present application includes a reel body, a spool around which a fishing line rotatably supported by the reel body is wound, a sensor for detecting rotation of the spool, and a sensor for detecting rotation of the spool. Up / Down counter for counting up and down the pulse signal output from the spool, light emitting means for irradiating spot light on the surface of the spool diameter of the spool, and a position sensor for detecting the position of light reflected from the surface of the spool diameter. And a means for calculating the yarn length based on the yarn diameter data from the yarn diameter detecting means and the count value of the up / down counter. And a display for displaying the yarn length calculated by the calculating means.

In this fishing reel line length measuring device, when the light emitting means irradiates the line diameter surface of the spool,
Since the position of the spot reflected light is detected by a position sensor of the yarn winding diameter detecting means and can be converted into a signal proportional to the yarn winding diameter, the yarn winding diameter signal and the rotation at the time of yarn feeding or winding counted by an up / down counter are used. If the yarn length is calculated by the calculating means on the basis of the number of rotations corresponding to the number, the length of the fed yarn and the length of the wound yarn can be obtained quickly and with high accuracy. This eliminates the need for parameters such as the total length of the thread and improves the reel operability.

[0006]

However, in the above-described apparatus for measuring the length of a fishing reel in a fishing reel as described above, spot light is applied to the surface of the spool in the diameter of the spool.
It is necessary to focus a light beam output from a light emitting body such as an ED or a semiconductor laser device on a winding surface by an optical system such as a lens, and it is necessary to focus reflected light on a position sensor by another optical system. There was a problem.

That is, when the above-described optical system is used, it is very difficult to reduce the size of the sensor because of the presence of the optical system. Further, since the range of the thread winding diameter that can be measured by one optical system is limited, there is a problem that the optical system needs to be changed according to the size of the reel. An object of the present invention is to solve the above-mentioned problems and to provide a small and lightweight fishing reel provided with a highly accurate line length measuring device.

[0008]

According to a first aspect of the present invention, there is provided a fishing reel which rotatably supports a spool around which a fishing line is wound between opposed side plates, and bridges a thumb rest between the side plates. The fishing reel according to the present invention is characterized in that an ultrasonic sensor used for measuring the amount of fishing line fed is arranged on the thumb rest.

A fishing reel according to a second aspect of the present invention is the fishing reel according to the first aspect, wherein an ultrasonic sensor is disposed below the thumb rest.

(Action) In the fishing reel of the first aspect, the ultrasonic sensor used for measuring the amount of fishing line fed is arranged on a relatively rigid thumb rest bridged between the side plates, and the spool is wound around the spool. The distance between the radial surface and the ultrasonic sensor is measured.

In the fishing reel according to the second aspect, the ultrasonic sensor is disposed below the thumb rest.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a fishing reel according to a first embodiment of the present invention. In these drawings, reference numeral 1 denotes a reel body, and 2 denotes a spool rotatably mounted on the reel body 1. A fishing line 3 is wound around the spool 2.

The reel body 1 has side plates 1a and 1b opposed to each other, and a spool 2 is rotatably arranged between the side plates 1a and 1b. Reference numeral 4 denotes a waterproof flat box integrally attached to the upper surface of the reel body 1, and a display 5 is disposed on an upper surface panel 4 a of the box 4. In this embodiment, the bobbin diameter detecting device 6b is disposed below the thumb rest 6a on which the thumb of the hand holding the reel body 1 can be mounted.

That is, a sensor mounting portion 61 is formed below the thumb rest 6a so as to protrude integrally with the thumb rest 6a, and the ultrasonic sensor 19 is disposed on the sensor mounting portion 61. Further, in the box 4, a microcomputer for calculating the yarn length, a battery (both will be described later) and the like are housed in a watertight manner.

Reference numeral 7 denotes a handle for winding and rotating the spool 2. In FIG. 3, reference numeral 8 denotes a microprocessor for performing thread length calculation, thread length display, and data writing control. The microprocessor 8 controls and manages a program memory, a data memory, a timer, and an input / output device, and executes a necessary operation and a transfer process for processing a given job. ROM 10 and C for storing length calculation processing program and thread length calculation formula
RAM 11 for storing data such as calculation results in PU 9
And an input interface 12 and an output interface 13, which are connected to the CPU 9 via a bus 14.

Reference numeral 15 denotes a sensor for detecting the rotation and the direction of the spool 2 and a pair of reed switches 15a, 15a.
5b and a plurality of magnets 15c opposed thereto and fixed to the inner peripheral edge of the spool 2. The reed switches 15a and 15b are connected to the magnet 15c.
The CPU 9 takes in the CPU 9 through the input interface 12 the spool normal rotation / reverse rotation determination signal obtained by turning ON / OFF any of the above, thereby setting the built-in up / down counter 16 to the up-count or down-count state. It has become.

The O of the reed switches 15a, 15b
By inputting the rotation pulse of the spool 2 obtained by N / OFF to the up / down counter 16 through the input interface 12, the counter is counted up or down. Furthermore, the input interface 12 includes a bobbin diameter detecting device 6.
b is connected via the transmission circuit 23 and the reception circuit 27.

The output interface 13 is connected via a decoder 18 to a digital display 5 for displaying thread length. The bobbin diameter detecting device 6b includes an ultrasonic sensor 19 that emits an ultrasonic beam 21 onto the surface of the spool 2 having a bobbin diameter and receives a reflected wave 25 reflected from the bobbin diameter surface.

The ultrasonic sensor 19 has, for example, the outer shape shown in FIG. 4 and has a waterproof structure, and as shown in FIG.
Terminals 194 and 195 are connected via the terminal 93. In the drawing, reference numeral 196 denotes an acoustic matching layer, reference numeral 197 denotes a metal case, reference numeral 198 denotes a base, and reference numeral 199 denotes a sealing material.

FIG. 3 also shows the details of the control means of the spool detecting device 6. This control means includes a transmission circuit 23 for emitting an ultrasonic beam 21 to the surface of the spool 2 having a spool diameter. A receiving circuit 27 for receiving a reflected wave 25 of the ultrasonic beam 21 reflected from the surface P of the bobbin diameter,
A timer 29 incorporated in the microprocessor 8 measures a time difference until the ultrasonic beam 21 emitted from the transmission circuit 23 is received by the reception circuit 27.

The time difference Δt and the distance d = (the sound speed 331 [m / s]
ec]) × (１ ／) × Δt, and d is calculated. FIG. 6 shows an example of the transmission circuit 23 and the reception circuit 22. A signal for instructing the trigger terminal 20 to perform measurement is CP.
Upon entering from U9, the transistor 22 is turned on, and a high-voltage pulse signal is applied to the ultrasonic sensor 19 from the pulse transformer 24 by the wave number of the CPU 9.

The ultrasonic beam 21 is reflected on the surface P of the bobbin diameter, becomes a reflected wave 25, enters the ultrasonic sensor 19 again, and induces a reception wave voltage. The reception wave voltage is received by the reception circuit 27
The signal passes through a plurality of stages of amplifier circuits, passes through a detection transformer 28, and is output from a detector terminal 30 to an input interface 12 of the microprocessor 8.

The timer 29 starts with a signal instructing measurement by the CPU 9 and ends with a signal from the detector terminal 30. This time difference Δt is stored in the RAM 11 and used for calculating the distance d. FIG. 7 shows an example of the time difference measurement. For example, a transmission voltage waveform 35 is applied to the ultrasonic sensor 19 for a time of 30 μs once every quarter rotation of the spool, and the ultrasonic beam 19 is applied from the ultrasonic sensor 19 to the surface of the spool 2 having a thread diameter. Fire.

The reflected wave 25 reflected on the surface P of the bobbin diameter enters the ultrasonic sensor 19, and a voltage is induced. This voltage is amplified by the reception circuit 27 and output as a reception pulse 25. The time difference 181 μs from the rise of the transmission pulse to the rise of the reception pulse is defined as the time difference Δt,
Is stored in the memory.

That is, as shown in FIG. 3, the distance d from the ultrasonic sensor 19 to the bobbin diameter is obtained by d = Δt × (v / 2), where v is the sound speed. Then, d can be obtained. FIG. 8 shows the case where the reel performs the yarn feeding / rewinding operation, and the detector terminal 30 shown in FIG.
And the relationship between the sensor output voltage and the distance from the sensor surface to the surface of the bobbin diameter measured and plotted.

The distance d and the sensor output voltage have a linear relationship. Then, the thread winding diameter D is obtained by the CPU 9, and
The yarn length is calculated as described later. The thread diameter D
Is the ultrasonic sensor 19 and the spool 2 as shown in FIG.
Assuming that the distance between the rotating shaft 37 and the rotating shaft 37 is c, D = (cd) × 2.

Next, a description will be given of the yarn length measuring operation of the present embodiment configured as described above according to the processing procedure shown in FIG. When the program of FIG. 9 starts, first, in step S10, it is determined whether the fishing line 3 is fed. Here, when it is determined that the fishing line 3 is being fed, the fishing line 3
The spool 2 is rotated in the normal rotation direction in accordance with the feeding of the control signal, so that a signal in the normal rotation direction is fetched from the sensor 15 to the CPU 9 through the input interface 12, thereby setting the up / down counter 16 in the up direction, and The pulse signal for each rotation of the spool, which is output from the sensor 15 with the rotation of the second rotation, is taken into the up / down counter 16 through the input interface 12 and is sequentially counted up (step S1)
1).

In the next step S12, the count N of the up / down counter 16 is fetched into the CPU 9 for each calculation cycle of the microcomputer 8, and the thread winding diameter D data calculated by the CPU 9 is fetched (step S1).
2) In the next step S13, calculation of L = π · D · N is executed, and the calculation result is output to the digital display 5 through the output interface 13 and the decoder 18, and the fishing line 3
Is digitally displayed (step S14).

On the other hand, if it is determined in step S10 that the fishing line 3 has been wound, the spool 2 is rotated in the reverse direction as the fishing line 3 is wound.
5, a signal in the reverse direction is taken into the CPU 9 through the input interface 12, whereby the up / down counter 16 is set to the down direction, and at the same time, the pulse signal output from the sensor 15 with the reverse rotation of the spool 2 is increased / decreased. It is taken into the down counter 16 and subtracted from the content counted at the time of feeding by the down counting operation (step S15).

Then, in the next step S16, the count content Na of the up / down counter 16 is taken into the CPU 9 at every calculation cycle of the microcomputer 8, and La = π
By calculating D · Na, the winding yarn length, that is, the yarn length La obtained by subtracting the winding yarn length from the unwound yarn length, is calculated and output to the digital display 5 to output the yarn length La. Is digitally displayed (step S17).

In the fishing reel constructed as described above, the fishing reel comprises a reel body 1 and a spool 2 on which a fishing line 3 rotatably supported by the reel body 1 is wound. A sensor 15 for detecting the rotation of the spool 2; an up / down counter for counting up and down the pulse signal output from the sensor 15; and an ultrasonic beam 21
, A receiving unit 27 for receiving a reflected wave 25 reflected from the surface of the bobbin diameter, and a time until the ultrasonic beam 21 emitted from the transmitting unit 23 is received by the receiving unit 27. , A thread diameter calculating means for calculating a thread diameter based on the time measured by the time measuring means 29, a thread diameter data from the thread diameter calculating means, and a count value of the up / down counter. And a display 5 for displaying the thread length calculated by the calculating means, so that it can be applied to reels of various sizes, and is a small and lightweight fishing reel. Can be easily provided.

That is, in the fishing reel configured as described above, since the ultrasonic sensor 19 is used for measuring the distance, an optical system such as a lens is not required, so that it is very difficult to reduce the size of the sensor unit. Will be easier. In addition, since one ultrasonic sensor 19 can reliably measure a short distance to a long distance, the same ultrasonic sensor can be applied to reels of various sizes.

In the fishing reel described above, the ultrasonic sensor 19 is arranged between the side plates 1a and 1b.
Unlike the related art, an optical system having a complicated structure is not required, and the ultrasonic sensor 19 does not protrude outward from the side plates 1a and 1b. Therefore, a small and lightweight fishing reel can be easily provided. be able to. Further, since the ultrasonic sensor 19 is arranged between the side plates 1a and 1b, the side plates 1a and 1b
The transmission and reception of the ultrasonic beam to the fishing line 3 can be reliably performed while suppressing the outward projection to prevent the entire reel from being enlarged, and the measurement accuracy can be improved.

In the fishing reel of this embodiment, the ultrasonic wave is placed at a position where there is no hindrance to the summing operation of the relatively rigid thumb rest 6a provided between the side plates 1a and 1b of the reel body 1 to the spool 2. Since the sensor 19 is supported, the ultrasonic sensor 19 can be reliably supported, and the summing operation on the spool 2 or the fishing line winding surface is easy.

Further, since the ultrasonic sensor 19 is arranged below the thumb rest 6a, the ultrasonic sensor 19 does not hinder the summing operation, and the summing operation can be performed more easily and reliably. Sufficient protection from external force is possible, and stable line length measurement can be performed without any trouble during actual fishing. Furthermore, since the ultrasonic sensor 19 is arranged below the thumb rest 6a, the fishing reel can be made more compact by effectively utilizing the dead space, and the portability and the operability of fishing are improved.

FIG. 10 shows a fishing reel according to a second embodiment of the present invention.
The measuring means for measuring the bobbin diameter by emitting the ultrasonic beam 21 to the surface P of the bobbin diameter includes a transmitting section 33, a receiving section 35, a distance measuring section and a bobbin diameter calculating section. ing. That is, the transmitting means 33
As shown in FIG. 11, a transmission wave voltage 41 subjected to frequency modulation is applied to the ultrasonic sensor 19 by a signal for instructing measurement from the input interface 12, and an ultrasonic beam is Fire 21.

The receiving means 35 receives the received wave voltage 42 induced in the ultrasonic sensor 19 by the reflected wave 25 reflected from the surface P of the bobbin diameter. The distance measuring means calculates the beat frequency fr of the beat signal 43 obtained by mixing the transmission wave voltage 41 and the reception wave voltage 42. From the ultrasonic sensor 19
The distance d between the thread diameter and the thread winding diameter is obtained.

That is, the beat frequency fr of the beat signal
Since there is a linear relationship with the distance d as shown in the following expression and FIG. 12, the beat frequency fr Is measured, the distance d can be accurately measured.

Fr = 4d ・ fm .DELTA.f / v where fm Indicates a modulation frequency, Δf indicates a modulation frequency bandwidth, and v indicates a sound speed (331 m / sec). Note that the reception wave voltage 42 to be mixed is described above.
Used is a signal amplified to a predetermined value by a plurality of stages of amplifying circuits arranged in the receiving circuit of the receiving means 35.

The thread diameter calculating means calculates thread diameter data indicating the size of the thread diameter from the distance obtained by the distance measuring means. In the fishing reel line length measuring device configured as described above, the measuring means applies the frequency-modulated transmission wave voltage 41 to the ultrasonic sensor 19 to apply ultrasonic waves to the surface P of the spool diameter of the spool 2. Transmission means 33 for emitting beam 21
And a receiving means 35 for receiving a reception wave voltage 42 induced in the ultrasonic sensor 19 by the reflected wave 25 reflected from the surface P of the bobbin diameter, and a transmission wave voltage 41 and a reception wave voltage 42 obtained by mixing. Distance measuring means for obtaining a distance d between the ultrasonic sensor 19 and the bobbin diameter from the beat frequency fr of the beat signal 43 to be obtained, and bobbin diameter data indicating the size of the bobbin diameter from the distance obtained by this distance measuring section. The transmission means 33 applies the frequency-modulated transmission wave voltage 41 to the ultrasonic sensor 19, and the ultrasonic wave is applied from the ultrasonic sensor 19 to the surface P of the spool diameter of the spool 2. The acoustic wave beam 21 is emitted, and the received wave voltage 42 induced on the ultrasonic sensor 19 by the reflected wave 25 reflected from the surface P of the thread diameter is applied to the receiving unit 3.
5, the reception wave voltage 41 and the transmission wave voltage 42 received by the receiving means 35 are mixed by the distance measuring means, and the ultrasonic sensor 19 is obtained from the beat frequency fr of the beat signal 43 obtained by the mixing. The distance d between the bobbin diameter and the bobbin diameter is obtained, and the bobbin diameter calculating means calculates bobbin diameter data indicating the size of the bobbin diameter from the distance obtained by the distance measuring means.

That is, in the fishing line length measuring device configured as described above, the transmission wave voltage 41 and the reception wave voltage 42 are mixed, and based on the beat frequency fr of the beat signal 43 generated by the mixing. Since the distance d is measured, the same effect as that of the embodiment shown in FIG. 1 can be obtained. Further, by using such an FM modulation method, a shorter distance can be obtained on a small reel. Can be measured accurately.

[0042]

As described above, in the fishing reel of the first aspect, since the ultrasonic sensor is disposed on the thumb rest, an optical system having a complicated structure is unnecessary as in the prior art.
Further, since the ultrasonic sensor does not protrude outward from the side plate, a small and lightweight fishing reel can be easily provided.

Also, since the ultrasonic sensor is arranged on the thumb rest, it is possible to reliably transmit and receive the ultrasonic beam to the fishing line while suppressing the projection of the side plate to the outside and preventing the entire reel from being enlarged. Measurement accuracy can be improved. Furthermore, since the ultrasonic sensor is supported by the thumb rest bridged between the side plates, there is no need to provide a special support portion, and the limited space of the reel is effectively utilized, so that the fishing structure has a simple structure. Reels can be provided.

Further, since the ultrasonic sensor is supported by the relatively rigid thumb rest, the ultrasonic sensor can be reliably supported. In the fishing reel of the second aspect, since the ultrasonic sensor is arranged below the thumb rest,
The ultrasonic sensor does not interfere with the summing operation,
Summing operation can be performed easily and reliably. Also,
Since the ultrasonic sensor is located below the thumb rest, the ultrasonic sensor can be reliably protected from the outside by the thumb rest, and the dead space is effectively used,
Further, the fishing reel can be made compact.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a fishing reel according to the present invention as viewed from a thumb rest side.

FIG. 2 is a perspective view of the fishing reel of FIG. 1 as viewed from a display side.

FIG. 3 is an overall configuration diagram of the yarn length measuring device of FIG.

FIG. 4 is a perspective view showing the ultrasonic sensor of FIG. 1;

FIG. 5 is a longitudinal sectional view of FIG.

FIG. 6 is a transmission / reception circuit diagram of the bobbin diameter detecting device according to the first embodiment.

FIG. 7 is an explanatory diagram showing a relationship between transmission and reception of an ultrasonic beam in the first embodiment.

FIG. 8 is a graph showing a relationship between a distance and a sensor output voltage.

FIG. 9 is a flowchart illustrating a procedure of a yarn length measurement display according to the first embodiment.

FIG. 10 is an overall configuration diagram of a yarn length measuring device according to a second embodiment of the present invention.

FIG. 11 is an explanatory diagram for explaining a beat frequency in the second embodiment.

FIG. 12 is a graph showing a relationship between a distance and a beat frequency.

[Explanation of symbols]

Reference Signs List 1 reel body 2 spool 3 fishing line 5 digital display 6 line diameter detecting device 6a thumb rest 7 handle 8 microcomputer 9 CPU 15 rotation detection sensor 16 up / down counter 19 ultrasonic sensor 21 ultrasonic beam 23, 33 transmitting means 25 reflected wave 27, 35 Receiving means 29 Timing means 41 Transmitting wave voltage 42 Receiving wave voltage 43 Beat signal fr Beat frequency

Claims (2)

(57) [Claims] 1. A fishing reel comprising a spool on which a fishing line is wound rotatably supported between opposed side plates, and a thumb rest bridged between said side plates. A fishing reel comprising an ultrasonic sensor used for measuring the amount of fishing line fed out. 2. The fishing reel according to claim 1, wherein an ultrasonic sensor is arranged below the thumb rest.