JPH09184717A - Fishing reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small and light fishing reel for measuring paying-out amount and winding amount of a fishline with high precision by assigning an ultrasonic sensor, used for measuring the playing-out amount of the fishline, between side plates. SOLUTION: A fishline 3 is wound around a spool 2 rotatably attached to a reel body 1. The body 1 is constituted in such a way that side plates 1a and 1b are assigned while facing, and, on a top surface panel 4a of a box 4 on the top surface of it, a display device 5 and a real diameter detection device 6 are provided. And, in the box 4, a microcomputer calculating line length and a battery, etc., are housed in watertight manner. The detection device 6 emits ultrasonic beam to the surface of real diameter of the spool 2, and consists of an ultrasonic sensor 19 receiving the reflected wave from the surface of the reel diameter. Since the ultrasonic sensor 19 is assigned between the side plates 1a and 1b, the ultrasonic beam is surely emitted/received from the fishline 3 while making-large is prevented, for improving measurement precision.

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 yarn length measuring device for the fishing reel as described above, since the surface of the spool having the winding diameter is irradiated with the spot light, L
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. The present invention solves the above-mentioned problems, and an object of the present invention is to provide a small and lightweight fishing reel equipped with a highly accurate yarn length measuring device.

[0008]

A fishing reel according to a first aspect of the present invention is a fishing reel in which a spool around which a fishing line is wound is rotatably supported between side plates opposite to each other.
An ultrasonic sensor used for measuring the amount of fishing line delivered is arranged between the side plates. A fishing reel according to a second aspect of the present invention is the fishing reel according to the first aspect, wherein the ultrasonic sensor is supported by a support member bridged between the side plates.

According to a third aspect of the present invention, there is provided the fishing reel according to the first or second aspect, wherein the supporting member is a thumb rest. A fishing reel according to a fourth aspect is the fishing reel according to the third aspect, characterized in that an ultrasonic sensor is arranged below the thumb rest.

(Operation) In the fishing reel according to the present invention, the ultrasonic sensor used for measuring the amount of fishing line delivered is arranged between the side plates, and the distance between the surface of the spool and the ultrasonic sensor is large. To be measured.

According to another aspect of the fishing reel of the present invention, the ultrasonic sensor is supported by a support member bridged between the side plates, for example, a control panel, a column, a thumb rest or the like. According to the fishing reel of the third aspect, the ultrasonic sensor is supported by the thumb rest having a relatively high rigidity. In the fishing reel according to the fourth aspect, the ultrasonic sensor is arranged 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 first embodiment of a fishing reel of the present invention. In FIG. 1, 1 is a reel body, 2 is a spool rotatably attached to the reel body 1, and Fishing line 3 on spool 2
Is wound.

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 unit 1. The upper panel 4a of the box 4 is provided with a display 5 and a bobbin diameter detecting device 6.

Further, in the box 4, a microcomputer for calculating the yarn length, a battery (both of which will be described later) and the like are housed in a watertight manner. Reference numeral 7 is a handle for winding and rotating the spool 2.

In FIG. 2, reference numeral 8 denotes a microprocessor for performing yarn length calculation, yarn 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 to execute a calculation and a transfer process required to process a given job, and a CPU 9 and a thread. A ROM 10 for storing a length calculation processing program and a yarn length calculation formula and a RAM 1 for storing data such as calculation results in the CPU 9.
1 and an input interface 12 and an output interface 13, which are connected to the CPU 9 via a bus 14.
It is connected to the.

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.

Further, the O of the reed switches 15a and 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.
Are 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 6 includes an ultrasonic sensor 19 that emits an ultrasonic beam 21 to the bobbin diameter surface of the spool 2 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. 3 and has a waterproof structure. As shown in FIG. 4, lead wires 192, 1 are provided on the piezoelectric ceramic 191.
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. 2 also shows the details of the control means of the spool detection device 6, which control means includes a transmitter circuit 23 for emitting an ultrasonic beam 21 to the surface of the spool 2 having the spool diameter. A receiving circuit 27 for receiving the reflected wave 25 of the ultrasonic beam 21 reflected from the surface P having the diameter of the bobbin,
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. 5 shows an example of the transmission circuit 23 and the reception circuit 22, in which the signal for instructing the measurement to the trigger terminal 20 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. 6 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 rising edge of the transmission pulse to the rising edge of the reception pulse is taken as the time difference Δt, and the RAM 11
Is stored in the memory.

That is, as shown in FIG. 2, the distance d from the ultrasonic sensor 19 to the diameter of the bobbin is calculated by d = Δt × (v / 2) where sonic velocity is v. Therefore, the time Δt is measured. By doing so, it becomes possible to obtain d. FIG. 7 shows the detector terminal 30 of FIG. 5 when the reel carries out a yarn feeding / winding operation.
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
As shown in FIG. 2, the ultrasonic sensor 19 and the spool 2
Assuming that the distance between the rotating shaft 37 and the rotating shaft 37 is c, D = (cd) × 2.

Next, the yarn length measuring operation of the present embodiment configured as described above will be described according to the processing procedure shown in FIG. When the program of FIG. 8 starts, first, in step S10, it is determined whether the fishing line 3 has been fed. Here, when it is determined that the fishing line 3 has been 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 ultrasonic waves to the fishing line 3 are prevented while suppressing the outward protrusion of the side plates 1a and 1b to prevent the reel from becoming large in size. Beams can be reliably transmitted and received, and measurement accuracy can be improved. Further, in the fishing reel described above, since the ultrasonic sensor 19 is supported by the box 4 bridged between the side plates 1a and 1b, it is not necessary to separately provide a special supporting portion, and the reel is limited. It is possible to provide a fishing reel with a simple structure that effectively utilizes space.

FIG. 9 shows a fishing reel according to the second embodiment of the present invention. In this embodiment, the reel unit 1 is used.
A bobbin diameter detecting device 6b is arranged below a thumb rest 6a on which a thumb holding a hand can be mounted. That is,
A sensor mounting portion 61 is integrally formed on the lower portion of the thumb rest 6a so as to project from the thumb rest 6a. The ultrasonic sensor 19 is disposed on the sensor mounting portion 61.

In the fishing reel of this embodiment, the ultrasonic sensor 19 is located at a position where the thumb rest 6a having a relatively high rigidity provided between the side plates 1a and 1b of the reel body 1 does not interfere with the summing operation to the spool 2. Since the ultrasonic 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.

Since the ultrasonic sensor 19 is arranged below the thumb rest 6a, the ultrasonic sensor 19 does not interfere with the summing operation, and the summing operation can be performed more easily and reliably. Sufficient protection from external force is possible, and stable thread length measurement can be performed without trouble during actual fishing. Further, since the ultrasonic sensor 19 is arranged below the thumb rest 6a, the dead space can be effectively utilized to further reduce the size of the fishing reel and improve portability and fishing operability.

FIG. 10 shows a fishing reel according to the third embodiment of the present invention. In this embodiment, the spool 2 is used.
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 having the diameter of the bobbin. The distance measuring means is a beat frequency fr of a beat signal 43 obtained by mixing the transmitted wave voltage 41 and the received 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).

The received wave voltage 42 to be mixed is the one amplified to a predetermined value by a plurality of stages of amplifying circuits arranged in the receiving circuit of the receiving means 35. 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.

In the fishing reel thread length measuring device constructed as described above, the measuring means applies the frequency-modulated transmission wave voltage 41 to the ultrasonic sensor 19 and the surface P of the spool diameter of the spool 2 is measured. And a transmitting means 33 for emitting an ultrasonic beam 21 to the laser, a receiving means 35 for receiving a receiving wave voltage 42 induced in the ultrasonic sensor 19 by a reflected wave 25 reflected from the surface P of the bobbin diameter, and a transmitting wave voltage 41. And received wave voltage 42
Distance d between the ultrasonic sensor 19 and the bobbin diameter from the beat frequency fr of the beat signal 43 obtained by mixing
Since it is composed of a distance measuring means for obtaining the value and a bobbin diameter calculating means for calculating bobbin diameter data indicating the size of the bobbin diameter from the distance obtained by the distance measuring means, the transmitting means 33 performs frequency modulation. The transmitted wave voltage 41 is applied to the ultrasonic sensor 19, and the ultrasonic beam 21 is emitted from the ultrasonic sensor 19 to the surface P of the spool 2 having the bobbin diameter.
The receiving wave voltage 42 induced in the ultrasonic sensor 19 by the reflected wave 25 reflected from the surface P having the diameter of the bobbin is received by the receiving means 35, and the received wave voltage received by the receiving means 35 by the distance measuring means. The voltage 41 and the transmitted wave voltage 42 are mixed, the distance d between the ultrasonic sensor 19 and the bobbin diameter is obtained from the beat frequency fr of the beat signal 43 obtained by this mixing, and the distance is measured by the bobbin diameter calculating means. The bobbin diameter data showing the size of the bobbin diameter is calculated from the distance obtained by the means.

That is, in the fishing reel yarn 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 this mixing. Since the distance d is measured by using the above method, 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 in a small reel. Can be accurately measured.

In the above-described embodiment, an example in which the ultrasonic sensor 19 is provided on the box 4 and the thumb rest 6a which are the supporting members has been described, but the present invention is not limited to this embodiment, and for example, An ultrasonic sensor may be provided on a strut that is separately bridged between the side plates 1a and 1b.

[0045]

As described above, in the fishing reel according to claim 1, since the ultrasonic sensor is arranged between the side plates,
Unlike the conventional case, an optical system having a complicated structure is unnecessary, and the ultrasonic sensor does not project outward from the side plate, so that a small and lightweight fishing reel can be easily provided.

Further, since the ultrasonic sensor is arranged between the side plates, it is possible to reliably transmit and receive the ultrasonic beam to and from the fishing line while suppressing the outward projection of the side plates to prevent the reel from becoming large in size. The measurement accuracy can be improved. In the fishing reel according to claim 2, since the ultrasonic sensor is supported by the supporting member bridged between the side plates, it is not necessary to separately provide a special supporting portion, and the limited space of the reel can be effectively utilized. It is possible to provide a fishing reel having a simple structure.

In the fishing reel of the third aspect, since the ultrasonic sensor is supported by the thumb rest having a relatively high rigidity, the ultrasonic sensor can be reliably supported. In the fishing reel according to the fourth aspect, since the ultrasonic sensor is arranged in the lower portion of the thumb rest, the ultrasonic sensor does not interfere with the summing operation, and the summing operation can be performed easily and reliably. Also, because the ultrasonic sensor is located under the thumb rest, the ultrasonic sensor can be reliably protected from the outside by the thumb rest, and the dead space can be effectively used to further reduce the size of the fishing reel. You can

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a fishing reel of the present invention.

FIG. 2 is an overall configuration diagram of the yarn length measuring device of FIG.

FIG. 3 is a perspective view showing the ultrasonic sensor of FIG. 1;

FIG. 4 is a vertical sectional view of FIG.

FIG. 5 is a transmission / reception circuit diagram of the bobbin diameter detection device according to the first embodiment.

FIG. 6 is an explanatory diagram showing a relationship between transmission and reception of an ultrasonic beam according to the first embodiment.

FIG. 7 is a graph showing the relationship between distance and sensor output voltage.

FIG. 8 is a flow chart showing a procedure of yarn length measurement display in the first embodiment.

FIG. 9 is a perspective view showing a second embodiment of the fishing reel of the present invention.

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

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

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

[Explanation of symbols]

1 Reel Main Body 2 Spool 3 Fishing Line 5 Digital Display 6 Bobbin Diameter Detection Device 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 transmitted wave voltage 42 received wave voltage 43 beat signal fr Beat frequency

Claims (4)

[Claims] 1. A fishing reel in which a spool around which fishing line is wound is rotatably supported between side plates arranged opposite to each other. A fishing reel comprising a sound wave sensor. 2. The fishing reel according to claim 1, wherein the ultrasonic sensor is supported by a support member bridged between the side plates. 3. The fishing reel according to claim 1, wherein the support member is a thumb rest. 4. The fishing reel according to claim 3, wherein an ultrasonic sensor is arranged below the thumb rest.