JPH08308448A - Line length measuring device for fishing reel - Google Patents

Abstract

PURPOSE: To provide a line length measuring device for fishing reel, capable of measuring a fishing line length from the minimum wound line diameter of fishing line to the maximum wound line diameter. CONSTITUTION: This line length measuring device for a fishing reel is equipped with a means for detecting the number of revolutions of a spool, a transmitting ultrasonic sensor 69 for sending an ultrasonic wave to the surface of the wound line from the maximum wound line diameter to a specific wound line diameter of a fishing line to be wound on the spool and to the surface of the wound line from the specific wound line diameter to the minimum wound line diameter of the fishing line, a receiving ultrasonic sensor 67 for receiving the reflected waves from the surface of the wound line, a wound line diameter measuring means for measuring a time required for the ultrasonic wave emitted from a transmitting ultrasonic sensor to be received by a receiving ultrasonic sensor and measuring a wound line diameter based on its measured value, a computing means for calculating line length based the wound line data from the wound line diameter measuring means and the number of revolutions of the spool detected by the means for detecting the number of revolutions and an indicator for showing the line length calculated by the computing means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a yarn length measuring device for fishing reels.

[0002]

2. Description of the Related Art The applicant of the present invention has previously disclosed Japanese Patent Laid-Open No. 4-27651.
In Japanese Patent No. 0, a line length measuring device for a fishing reel capable of measuring the feeding amount and the winding amount of a fishing line is disclosed.
This yarn length measuring device is equipped with spool rotation speed detecting means for detecting the rotation speed of a spool rotatably supported between side plates of a reel body, and a sensor support portion provided between the side plates so as to face the spool winding surface. The ultrasonic sensor for transmission that emits ultrasonic waves to the spool surface of the spool, the ultrasonic sensor for reception that receives reflected waves of ultrasonic waves from the surface of the spool, and the ultrasonic waves emitted from the ultrasonic sensor for transmission are received. By measuring the time until it is received by the ultrasonic sensor for use and measuring the bobbin diameter based on the measured value, and the bobbin diameter data from the bobbin diameter measuring means and the spool rotational speed detecting means. It is characterized in that it is provided with a computing means for computing the yarn length based on the detected rotational speed of the spool, and a display for displaying the yarn length computed by the computing means.

16 and 17 show the above-mentioned Japanese Patent Laid-Open No. 4-276.
5 shows a fishing reel equipped with the yarn length measuring device disclosed in Japanese Patent Publication No. 510, which is provided below the thumb rest 5 of the reel body 3 provided at the rear of the spool 1 and supports a pair of adjacent sensors. The parts 7 and 9 are integrally projected, and the transmission ultrasonic sensor 13 and the reception ultrasonic sensor 15 are shown in the sensor support parts 7 and 9 so as to face the bobbin winding surface 11 of the spool 1, respectively. It is mounted in a V-shape like 18.

According to this yarn length measuring device, when ultrasonic waves are emitted from the transmitting ultrasonic sensor 13 to the bobbin winding surface 11 of the spool 1, the reflected ultrasonic wave is received by the receiving ultrasonic sensor 15. The time until the winding is measured by the time measuring means of the bobbin diameter measuring means. Then, the time measured by the time measuring means is converted into an electric signal proportional to the diameter of the bobbin, and the feeding length of the fishing line 17 is calculated based on the bobbin diameter data and the rotation speed measured by the spool rotation speed detecting means. Is calculated by
The numerical value will be displayed on the digital display 21 on the operation panel 19.

[0005]

Therefore, in the above-described conventional yarn length measuring device, the reflected ultrasonic wave emitted from the transmitting ultrasonic sensor 13 can be properly received by the receiving ultrasonic sensor 15. As described above, both ultrasonic sensors 13 and 15 are tilted at a predetermined angle with respect to the bobbin winding surface 11 of the spool 1, and these ultrasonic sensors 13 and 15 are arranged and fixed to the sensor support portions 7 and 9 in a V-shape.

However, in consideration of the limited space between the side plates 23 and 25 of the reel unit 3, the ultrasonic sensors 13 and 15 are limited in outer diameter dimension, and the two ultrasonic sensors 13 and 15 are also limited. The mounting angle of the spool 15 with respect to the bobbin winding surface 11 is fixed. Therefore, the above-described thread length measuring device has a restriction on the measurable bobbin diameter, and for example, a measurable bobbin diameter area m and an unmeasurable bobbin diameter area n are generated as shown in FIG. There remains a problem that the yarn length cannot be widely measured from the minimum winding diameter to the maximum winding diameter.

Prior to the above yarn length measuring device, the applicant of the present invention disclosed in Japanese Patent Laid-Open No. 3-223614 a yarn length measuring device for transmitting and receiving ultrasonic waves using one ultrasonic sensor. As proposed, the ultrasonic sensor 27 is orthogonal to the bobbin surface 11 as shown in FIG.
If it is attached to the above, the above problems will not occur. However, when ultrasonic waves are transmitted and received by only one ultrasonic sensor 27, there is a problem that the yarn length measurement becomes difficult if the distance between the bobbin winding surface 11 and the ultrasonic sensor 27 is short.

That is, in general, when a high-voltage pulse signal is applied to the ultrasonic sensor 27 to emit an ultrasonic wave, reverberation remains in the ultrasonic sensor 27 for a certain period of time until the vibration is attenuated and disappears. When measuring, the reflected wave from the bobbin surface 11 returns to the ultrasonic sensor 27 while the reverberation remains, and the reverberation and the reflected wave overlap each other, and the time difference between transmission and reception of the ultrasonic sensor 27 is accurately measured. There was a drawback that it became difficult to measure.

The present invention has been devised in view of the above circumstances, and widely measures the line length from the minimum line diameter of the fishing line to the maximum line diameter regardless of the increase or decrease of the line diameter of the fishing line wound around the spool. It is an object of the present invention to provide a yarn length measuring device for a fishing reel capable of performing the following.

[0010]

In order to achieve such an object, a yarn length measuring device for a fishing reel according to a first aspect of the present invention detects the number of rotations of a spool rotatably supported between side plates of a reel body. The spool rotation speed detecting means and the sensor support portion provided between the side plates are mounted so as to face the bobbin winding surface of the spool, and a certain bobbin diameter from the maximum bobbin diameter to the minimum bobbin diameter of the fishing line wound on the spool. Up to the bobbin surface and a transmission ultrasonic sensor that emits ultrasonic waves to the bobbin surface from the specific bobbin diameter to the minimum bobbin diameter of the fishing line, and the sensor support part is mounted opposite to the bobbin surface of the spool. The ultrasonic sensor for reception that receives the reflected wave of the ultrasonic wave of and the time until the ultrasonic wave emitted from the ultrasonic sensor for transmission to the surface of the bobbin is received by the ultrasonic sensor for reception is measured. The bobbin diameter based on A thread winding diameter measuring means for measuring, a thread winding diameter data from the thread winding diameter measuring means, a calculating means for calculating a thread length based on the spool rotation speed detected by the spool rotation speed detecting means, and a calculating means for calculating the thread length. And a display for displaying the length of the yarn that has been cut.

The invention according to claim 2 is based on claim 1.
In the fishing reel thread length measuring device described above, the transmitting ultrasonic sensor comprises two ultrasonic sensors mounted at different mounting angles with respect to the spool bobbin surface, and the receiving ultrasonic sensor is used. Is composed of two ultrasonic sensors mounted on the sensor support corresponding to each transmitting ultrasonic sensor.

According to a third aspect of the present invention, in the yarn length measuring device for a fishing reel according to the first aspect, the transmitting ultrasonic sensor has a predetermined mounting angle with respect to the spool winding surface. The ultrasonic sensor for reception includes an ultrasonic sensor for receiving reflected waves of ultrasonic waves from the surface of the fishing line from the maximum diameter of the fishing line to the specific diameter of the fishing line, It is characterized by comprising two ultrasonic sensors arranged in parallel for receiving reflected waves of ultrasonic waves from the surface of the bobbin from the specific bobbin diameter to the minimum bobbin diameter of the fishing line.

The invention according to claim 4 is the same as claim 1.
In the fishing reel thread length measuring device as described above, the transmission ultrasonic sensor includes a bobbin winding surface from a maximum bobbin diameter of a fishing line wound on a spool to a specific bobbin diameter, and a specific bobbin diameter. It consists of two ultrasonic sensors arranged in parallel that emit ultrasonic waves to the surface of the fishing line up to the minimum diameter of the fishing line. The receiving ultrasonic sensor receives the reflected waves of the ultrasonic waves from the transmitting ultrasonic sensors. It is characterized by being composed of one ultrasonic sensor.

The invention according to claim 5 provides the invention according to claim 1.
In the fishing reel thread length measuring device described above, the transmission ultrasonic sensor is mounted at a predetermined mounting angle with respect to the spool bobbin surface, and the maximum reel diameter of the fishing line wound on the spool is provided. To one specific spool diameter, one ultrasonic sensor that emits ultrasonic waves to the spool surface, and a spool surface that is arranged orthogonal to the spool surface of the spool and is from the specified spool diameter to the minimum fishing reel diameter of the fishing line. The ultrasonic sensor, which is composed of a single ultrasonic sensor that emits ultrasonic waves to the front surface of the spool, is disposed orthogonally to the spool surface of the spool, and receives the reflected waves of the ultrasonic waves emitted from the ultrasonic sensor to the surface of the spool. It also functions as a receiving ultrasonic sensor.

According to a sixth aspect of the present invention, there is provided spool rotation speed detecting means for detecting the rotation speed of the spool rotatably supported between the side plates of the reel body, and spool spools on the sensor support portion provided between the side plates. An ultrasonic sensor for transmission, which is mounted so as to face the surface and emits ultrasonic waves to the spool surface of the spool,
And the ultrasonic sensor for reception that receives the reflected wave of the ultrasonic wave from the surface of the bobbin and the time until the ultrasonic wave emitted from the ultrasonic sensor for transmission to the bobbin surface of the spool is received by the ultrasonic sensor for reception. The thread length is measured based on the thread winding diameter measuring means for measuring the thread winding diameter based on the measured value, the thread winding diameter data from the thread winding diameter measuring means, and the rotation speed of the spool detected by the spool rotation speed detecting means. In a yarn reel length measuring device for a fishing reel, which comprises a computing means for computing the yarn length and a display for displaying the yarn length computed by the computing means, the sensor support part is configured to be displaceable, and An actuator for displacing the sensor support is mounted on the reel unit, and the sensor support is displaced by the actuator based on the bobbin diameter data from the bobbin diameter measuring means to transmit ultrasonic waves to the bobbin winding surface of the spool. It is characterized in that the capacitors can be changed the mounting angle of the receiver ultrasonic sensor.

[0016]

According to the yarn length measuring device of each claim, the time until the reflected wave of the ultrasonic wave emitted from the transmitting ultrasonic sensor is received by the receiving ultrasonic sensor is measured by the bobbin diameter measuring means. The bobbin diameter is measured based on the measured value. Then, the thread length is calculated by the calculating means on the basis of the spool diameter data and the spool rotation speed detected by the spool rotation speed detecting means, and the calculated value is displayed on the digital display as the feeding length of the fishing line. However, the fishing line diameter of the fishing line wound around the spool is increased or decreased by feeding or winding the fishing line.

Therefore, in the yarn length measuring device according to any one of claims 1 to 5, a certain amount of super-transmission for a certain line winding diameter from the maximum diameter of the fishing line wound around the spool to the minimum diameter of the fishing line. The length of the yarn is measured by the ultrasonic wave sensor and the ultrasonic wave sensor for reception, and from the specific thread winding diameter to the minimum thread winding diameter that cannot be measured by the ultrasonic wave sensor, separate ultrasonic wave sensors for transmission and ultrasonic wave for reception are used. The yarn length will be measured.

Further, in the yarn length measuring device according to the sixth aspect, the actuator displaces the sensor support portion based on the yarn winding diameter data from the yarn winding diameter measuring means in response to an increase or decrease in the diameter of the fishing line and the spool is wound. By changing the attachment angle of the ultrasonic sensor for transmission and the ultrasonic sensor for reception on the surface, it can be widely used from the minimum diameter of the fishing line to the maximum diameter of the fishing line regardless of the increase or decrease of the diameter of the fishing line wound on the spool. The yarn length will be measured.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. The yarn length measuring device of each embodiment described below uses a transmitting ultrasonic sensor and a receiving ultrasonic sensor, like the yarn length measuring device disclosed in Japanese Patent Laid-Open No. 4-276510. The configuration and the yarn length measuring operation thereof are the same as those of the conventional example, and the configuration and the yarn length measuring operation of the yarn length measuring device for measuring the yarn length using one ultrasonic sensor are special. Since it is the same as the yarn length measuring device disclosed in Japanese Patent Laid-Open No. 3-223614, description thereof will be omitted here, and only the invented portion will be described.

1 and 2 show a first embodiment of a fishing reel equipped with a yarn length measuring device according to claims 1 and 5, wherein 31 is a spool shaft 33. A spool rotatably supported between the side plates 37 and 39 of the reel unit 35, and a manual handle 41, the rotational force of which is transmitted to the spool shaft 33 via a power transmission mechanism 43 mounted in the side plate 39. The fishing line 45 is wound around the spool 31.

The frame frame 4 of the reel unit 35
7, a flat box-shaped storage body 49 has a spool 31.
Is integrally provided on the front side of the upper part, and the microcomputer of the yarn length measuring device is incorporated therein.
Further, in the figure, 51 is a magnet embedded on one side of the spool 31, 53 is a housing 49 facing the magnet 51.
These are the reed switches mounted on the spool 31
The encoder 55 is configured to generate a pulse proportional to the rotation speed of the spool 31 by converting the rotation of the spool into an electric signal, and this pulse is input to the microcomputer in the housing 49 to calculate the yarn length. It is being used. Then, the calculation result is displayed on the digital display 59 on the operation panel 57 as the feeding amount and the winding amount of the fishing line 45.

Further, in FIG. 1, reference numeral 61 denotes a thumb rest integrally installed on the rear portion of the frame body 47. As shown in the figure, the thumb rest 61 has a shape in which the central portion is curved rearward of the reel unit 35. Has become. Then, below the thumb rest 61, a transmitting ultrasonic sensor 65 that emits ultrasonic waves P to the bobbin surface 63, a receiving ultrasonic sensor 67 that receives the reflected wave P ′ reflected by the bobbin surface 63, and A sensor support 71 for mounting a transmission / reception ultrasonic sensor 69 that emits an ultrasonic wave P to the bobbin surface 63 and receives the reflected wave P ′ by itself is provided with a slight gap from the thumb rest 61. There is.

The sensor support portion 71 is formed integrally with the frame frame 47 along the thumb rest 61, and three sensor mounting holes 75, 77, 79 are provided in the spool facing surface 73 facing the bobbin winding surface 63. Has been. Then, as shown in FIGS. 1 and 2, the left and right sensor mounting holes 75, 79
A transmitting ultrasonic sensor 65 and a receiving ultrasonic sensor 67 are arranged in a V shape with respect to the bobbin winding surface 63, respectively, and a reflected wave P ′ of the ultrasonic wave P emitted from the transmitting ultrasonic sensor 65 is provided.
The receiving ultrasonic sensor 67 can receive the signal satisfactorily.

However, the ultrasonic sensors 65 and 67 in this embodiment are also spool 31 as in the conventional example described in FIG.
Since the mounting angle of the bobbin to the bobbin surface 63 is fixed, the measurable bobbin diameter is restricted. Therefore, in this embodiment, the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 6 are
The thread winding diameter area in which the thread length can be measured by 7 is a thread winding diameter area M from the maximum thread winding diameter to a certain thread winding diameter of the fishing line 45, that is, from the point A to the point B in FIG. It

In the sensor mounting hole 77 between the ultrasonic sensors 65 and 67, a transmitting / receiving ultrasonic sensor 69 is mounted orthogonal to the bobbin winding surface 63 of the spool 31 to identify the above-mentioned fishing line 45. From the bobbin diameter to the minimum bobbin diameter, that is, in the bobbin diameter region N from point B to point C in FIG. The reflected wave P ′ of the ultrasonic wave P emitted from the sound wave sensor 69 is transmitted and received by the ultrasonic wave sensor 69 for transmission and reception.
Can be received.

Then, similar to the yarn length measuring devices disclosed in Japanese Patent Laid-Open Nos. 4-276510 and 3-223614, the yarn length measuring device according to this embodiment also has a transmitting ultrasonic sensor 65 and a transmitting / receiving device. The time until the reflected wave P ′ of the ultrasonic wave P emitted from the ultrasonic sensor 69 to the bobbin surface 63 is received by the receiving ultrasonic sensor 67 and the transmitting / receiving ultrasonic sensor 69, respectively, is measured. A thread winding diameter measuring means for measuring the thread winding diameter based on the measured value, and a calculating means for calculating the thread length based on the thread winding diameter data from the thread winding diameter measuring means and the rotation speed of the spool 31 detected by the encoder 55. Although provided, the ROM of the microcomputer of the yarn length measuring apparatus according to the present embodiment stores the numerical value of the specific yarn winding diameter at the point B described above. Then, in the yarn winding diameter region M extending from the point A to the point B, the yarn length is measured by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67, and the yarn winding diameter data is the specific yarn winding diameter at the point B. Then, the CPU of the microcomputer switches to the yarn length measurement by the transmitting / receiving ultrasonic sensor 69.

Similarly, as the fishing line 45 is wound up, the bobbin diameter data measured by the transmission / reception ultrasonic sensor 69 is B.
When the specific thread winding diameter at a point is reached, the CPU switches from the thread length measurement by the transmission / reception ultrasonic sensor 69 to the thread length measurement by the transmission ultrasonic sensor 65 and the reception ultrasonic sensor 67. As shown in FIG. 1, the spool facing surface 73 of the sensor support portion 71 is disposed rearward of the spool-side tip portion 81 of the thumb rest 61, and thus the spool facing surface 73 is rearward of the spool-side tip portion 81. When the fishing line 45 is wound up, the seawater scattered from the fishing line 45 to the rear of the spool 31 is blocked by the thumb rest 61 so as not to reach the ultrasonic sensors 65, 67, 69.

In addition, in FIG. 1, 83 is each ultrasonic sensor 6
Foam or silicone wrapped around the outer circumference of 5, 67, 69,
A vibration absorbing member made of a vibration proof rubber or the like, and 85 a fishing rod on which the reel body 35 is mounted, the vibration absorbing member 83 prevents the ultrasonic sensors 65, 67, 69 from interfering with each other.

The present embodiment is constructed in this way, and the diameter of the bobbin wound on the spool 31 is increased or decreased by feeding or winding the fishing line 45. However, in the bobbin diameter region M of FIG. The time until the reflected wave P'of the ultrasonic wave P emitted from the sensor 65 is received by the receiving ultrasonic sensor 67 is measured by the bobbin diameter measuring means, and the bobbin diameter is measured based on the measured value. Then, the thread length is calculated by the calculating means based on the spool diameter data and the rotation speed of the spool 31 detected by the encoder 55, and the calculated value is displayed on the digital display 59 as the length of the fishing line 45 to be fed. It will be.

Further, as the fishing line 45 is fed out, the spool 31
When the diameter of the bobbin wound around is reduced and the bobbin diameter data coincides with the specific bobbin diameter at the point B, the CPU switches to the thread length measurement by the transmission / reception ultrasonic sensor 69, and in the bobbin diameter area N, the transmission / reception is performed. The time until the reflected wave P'of the ultrasonic wave P emitted from the ultrasonic sensor 69 for reception is received by the transmitting / receiving ultrasonic sensor 69 is measured by the bobbin diameter measuring means, and the bobbin diameter is measured based on the measured value. It Then, the spool 31 detected by the encoder 55 and the spool diameter data.
The yarn length is calculated by the calculating means on the basis of the number of revolutions, and the calculated value is displayed on the digital display 59.

When the diameter of the bobbin wound on the spool 31 increases as the fishing line 45 is wound up and the bobbin diameter data from the ultrasonic sensor 69 for transmission / reception again coincides with the specific bobbin diameter, the CPU transmits ultrasonic waves for transmission. The yarn length measurement is switched to the sensor 65 and the ultrasonic sensor 67 for reception.
Further, as the fishing line 45 is wound up, seawater attached to the fishing line 45 scatters behind the spool 31.
Since the spool-side tip 81 of No. 1 projects toward the spool 31 side, the seawater that tries to scatter in the respective ultrasonic sensors 65, 67, 69 is blocked by the thumb rest 61, and the seawater to the respective ultrasonic sensors 65, 67, 69 is blocked. To prevent the adherence of.

As described above, in this embodiment, the sensor support portion 7
The ultrasonic sensor 65 for transmission and the ultrasonic sensor 67 for reception which are mounted on the No. 1 have fixed mounting angles with respect to the bobbin winding surface 63 of the spool 31, so that there is a restriction on the measurable bobbin diameter, both ultrasonic waves are taken into consideration. In the yarn winding diameter region M in which the yarn length can be measured by the sensors 65 and 67, the ultrasonic sensors 65,
67 is used to measure the yarn length, and the ultrasonic sensor 6
In the yarn winding diameter region N where the yarn length cannot be measured by 5, 67, the ultrasonic sensor 69 for transmission / reception capable of separately measuring the yarn length is attached to the sensor support portion 71 to measure the yarn length.
According to this embodiment, regardless of the increase or decrease in the diameter of the fishing line 45 wound around the spool 31 as compared with the related art, it is possible to widely measure the fishing line length from the minimum fishing line diameter to the maximum fishing line diameter of the fishing line 45. It has become possible.

FIGS. 3 to 5 show a second embodiment of a fishing reel equipped with the yarn length measuring device according to the first and fifth aspects. Since the configuration excluding the invention portion is the same as that of the first embodiment, only the invention portion will be described here, and the same elements as those of the first embodiment will be denoted by the same reference numerals and will not be described. Is omitted. In the figure, reference numeral 87 denotes a sensor support portion integrally formed on the right rear portion of the frame body 91 of the reel body 89, and the sensor support portion 87 is arranged along the winding surface 63 of the spool 31 as shown in FIG. It is provided in the direction.

On the spool facing surface 93 of the sensor supporting portion 87 facing the bobbin winding surface 63, three sensor mounting holes 95, 97, 99 are provided in the vertical direction at a predetermined distance. The ultrasonic sensor 65 for transmission and the ultrasonic sensor 67 for reception are mounted in the sensor mounting holes 95 and 99 in a V shape. Then, as in the first embodiment, the measurement of the yarn length in the bobbin diameter region from the maximum bobbin diameter to the minimum bobbin diameter of the fishing line 45 wound on the spool 31 is performed by using both ultrasonic waves. The sensors 65 and 67 can be used.

In the sensor mounting hole 97 between the ultrasonic sensors 65 and 67, a transmitting / receiving ultrasonic sensor 69 is mounted orthogonally to the fishing line surface 63, and the fishing line 45 described above is attached.
The transmission / reception ultrasonic sensor 69 measures the yarn length in the yarn winding diameter region from the specific yarn winding diameter to the minimum yarn winding diameter.

In addition, in FIG. 4, 101 is the sensor support portion 8.
7 is a thumb rest that is provided between the frame frame body 91 and the frame frame body 91 facing the frame frame body 7. The other configurations and the yarn length measuring operation of the yarn length measuring device according to the present embodiment are the same as those in the first embodiment. Since they are the same, their description will be omitted. As described above, the yarn length measuring device according to the present embodiment also includes the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 6 on the sensor support portion 87.
7 is mounted in a V shape so that the reflected wave of the ultrasonic wave emitted from the transmitting ultrasonic sensor 65 can be properly received by the receiving ultrasonic sensor 67.
In view of the fact that there is a restriction on the measurable bobbin diameter with a fixed mounting angle with respect to No. 3, in the bobbin diameter region in which the thread length can be measured by both ultrasonic sensors 65, 67, the ultrasonic sensor 6
5 and 67 are used to measure the yarn length, and in the yarn winding diameter region where the yarn length cannot be measured by the ultrasonic sensors 65 and 67,
Since the transmission / reception ultrasonic sensor 69 capable of separately measuring the yarn length is attached to the sensor support portion 87 to measure the yarn length, this embodiment also winds the spool 31 around the spool 31 as in the first embodiment. Regardless of the increase or decrease in the diameter of the wound fishing line 45, it is possible to widely measure the fishing line length from the minimum fishing line diameter to the maximum fishing line diameter.

FIGS. 6 to 8 show a third embodiment of a fishing reel equipped with the yarn length measuring device according to the first and fifth aspects, in which 103 is the frame frame 1 of the reel body 105.
A sensor support unit integrally formed on the right rear part of 07, 109
Is the frame frame 10 facing the sensor support portion 103.
7 is a block-shaped sensor support part integrally formed on the left rear part of the sensor support part 103.
They are connected by 1.

As shown in FIG. 8, the sensor support portion 103 is provided in the circumferential direction along the bobbin winding surface 63 of the spool 31, and the spool facing surface 113 facing the bobbin winding surface 63 has Two sensor mounting holes 115 and 117 are vertically provided at a predetermined distance, and a transmitting ultrasonic sensor 65 and a receiving ultrasonic sensor 67 are V-shaped in each sensor mounting hole 115 and 117. It is installed. Then, as in the first embodiment, the measurement of the yarn length in the bobbin diameter region from the maximum bobbin diameter to the minimum bobbin diameter of the fishing line 45 wound on the spool 31 is performed by using both ultrasonic waves. The sensors 65 and 67 are used.

On the other hand, as shown in FIG.
On the spool facing surface 119 of No. 9, one sensor mounting hole 1
21 is provided, and the transmission / reception ultrasonic sensor 69 is mounted in the sensor mounting hole 121 so as to be orthogonal to the bobbin winding surface 63 of the spool 31. And the above-mentioned fishing line 4
The transmission / reception ultrasonic sensor 69 measures the yarn length in the yarn winding diameter region from the specific winding diameter to the minimum winding diameter.

It should be noted that, as shown in FIG.
A support surface 123 on which a thumb can be placed is formed on the upper part of 09, and as shown in FIG. 8, a vibration absorbing member 83 is made of the same material between the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67. The plate-shaped vibration absorbing material 125 is attached to the sensor supporting portion 103.
To prevent interference between sensors,
Other configurations of the yarn length measuring device according to the present embodiment and the yarn length measuring operation thereof are also the same as those in the first embodiment, and therefore the description thereof will be omitted.

Thus, according to this embodiment, the first,
Similar to the second embodiment, it is possible to achieve the intended purpose. 9 and 10 show an embodiment of a fishing reel equipped with the yarn length measuring device according to claim 1 and claim 2, wherein 127 has the same shape as the sensor support portion 103. The sensor support portion 133 integrally formed on the frame frame 131 of the reel body 129 is a sensor support portion integrally formed on the left rear portion of the frame frame 131 facing the sensor support portion 127, and is illustrated in FIGS. Similar to the embodiment shown in
Sensor mounting holes 135, 13 provided in the sensor support 127
7, a pair of transmitting ultrasonic sensors 65 and receiving ultrasonic sensors 67 are mounted in a V-shape.
The fishing line 45 wound around the spool 31 by
The yarn length is measured in the yarn winding diameter region from the maximum yarn winding diameter to the specific yarn winding diameter.

On the other hand, the sensor support portion 133 is also provided in the circumferential direction along the bobbin winding surface 63 of the spool 31 like the sensor support portion 127, and the spool facing surface 139 facing the bobbin winding surface 63 has a predetermined surface. Two sensor mounting holes 141 and 143 are provided in the vertical direction with a distance of. Then, a pair of transmitting ultrasonic sensors 145 and receiving ultrasonic sensors 147 are mounted in a V shape in the sensor mounting holes 141 and 143 by changing the mounting angles of the ultrasonic sensors 65 and 67 with respect to the bobbin surface 63. In the above-described fishing line 45, the receiving ultrasonic sensor 147 can receive the reflected wave of the ultrasonic wave emitted from the transmitting ultrasonic sensor 145 in the winding diameter region from the specific winding diameter to the minimum winding diameter. Has become.

The yarn length measuring device according to this embodiment also
The time required for the reflected waves of the ultrasonic waves emitted from the transmitting ultrasonic sensors 65, 145 to the bobbin surface 63 to be received by the receiving ultrasonic sensors 67, 147 is measured, and based on the measured values. A bobbin diameter measuring means for measuring the bobbin diameter, bobbin diameter data from the bobbin diameter measuring means, and an encoder 55.
The CPU of the yarn length measuring device stores the numerical value of the specific yarn winding diameter. Then, the thread length is measured by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67 in the diameter range of the fishing line 45 extending from the maximum diameter to the specific diameter, and the diameter data indicates the specific diameter. When they match, the CPU of the microcomputer switches to the yarn length measurement by the transmitting ultrasonic sensor 145 and the receiving ultrasonic sensor 147.

Similarly, when the fishing line 45 is wound up and the bobbin diameter data of the thread length measurement by the transmitting ultrasonic sensor 145 and the receiving ultrasonic sensor 147 coincides with the specific bobbin diameter from the minimum bobbin diameter, the CPU transmits the fish. The yarn length measurement by the ultrasonic sensor 145 and the receiving ultrasonic sensor 147 is switched to the yarn length measurement by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67.

In addition, in the figure, 149 indicates both sensor support portions 1.
Thumb rests for connecting 27 and 133, 151 and 153 are plate-shaped vibration absorbing materials attached to the sensor supporting portions 127 and 133, respectively, and other configurations of the yarn length measuring device according to the present embodiment and its yarn length measuring operation have already been performed. JP-A-4-27651 described above
This is the same as the yarn length measuring device of Japanese Patent No. 0. The present embodiment is configured in this way, and the diameter of the fishing line 45 wound around the spool 31 is increased or decreased by feeding or winding the fishing line 45, but the fishing line 45 is wound from the maximum diameter to the specific diameter. In the diameter region, the time until the reflected wave of the ultrasonic wave emitted from the transmitting ultrasonic sensor 65 is received by the receiving ultrasonic sensor 67 is measured by the bobbin diameter measuring means, and the bobbin diameter is measured based on the measured value. To be done. Then, based on the spool diameter data and the number of rotations of the spool 31 detected by the encoder 55, the yarn length is calculated by the calculating means, and the calculated value is the fishing line 45.
Will be displayed on the digital display 59 as the unwound yarn length.

Further, as the fishing line 45 is fed out, the spool 31
When the diameter of the wound bobbin is reduced and the bobbin diameter data coincides with the bobbin diameter of the specified bobbin diameter, the CPU of the microcomputer switches to the thread length measurement by the transmission ultrasonic sensor 145 and the reception ultrasonic sensor 147. The time until the reflected wave of the ultrasonic wave emitted from the transmitting / receiving ultrasonic sensor 145 is received by the receiving ultrasonic sensor 147 is measured by the bobbin diameter measuring means, and the bobbin diameter is measured based on the measured value. . Then, the yarn length is calculated by the calculating means based on the spool diameter data and the rotation speed of the spool 31 detected by the encoder 55, and the calculated value is displayed on the digital display 59.

As the fishing line 45 is wound up, the diameter of the line wound around the spool 31 is increased and the ultrasonic sensors 1
When the thread winding diameter data of 45 and 147 becomes the specific thread winding diameter, the CPU switches to the thread length measurement by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67, and the ultrasonic waves emitted from the transmitting ultrasonic sensor 65 again. The time until the reflected wave P ′ of P is received by the receiving ultrasonic sensor 67 is measured by the bobbin diameter measuring means, and the bobbin diameter is measured based on the measured value.

As described above, also in this embodiment, the sensor support portion 1
Considering that there are restrictions on the measurable bobbin diameters of the transmission ultrasonic sensor 65 and the reception ultrasonic sensor 67 attached to the 27, in the bobbin diameter region in which the bobbin lengths can be measured by both the ultrasonic sensors 65 and 67, The ultrasonic sensor 65, 67 is used to measure the yarn length, and in the thread winding diameter region where the ultrasonic sensor 65, 67 cannot measure the yarn length, the ultrasonic sensor for sending and receiving can separately measure the yarn length. Since 145 and 147 are attached to the sensor support 133 to measure the yarn length,
It is possible to widely measure the length of the fishing line 45 from the minimum winding diameter to the maximum winding diameter.

FIG. 11 shows the outline of an ultrasonic sensor mounting structure in an embodiment of the yarn length measuring apparatus according to claims 1 and 4, and 155 in the figure is provided on the frame frame of the reel unit. In the sensor support portion, three sensor mounting holes 159, 161, 163 are formed on the spool facing surface 157. A transmission ultrasonic sensor 65 and a reception ultrasonic sensor 67 are arranged in a V shape with respect to the bobbin winding surface 63 of the spool 31 in the two sensor mounting holes 161 and 163 located on the right side of the reel body. The reception ultrasonic sensor 67 can satisfactorily receive the reflected wave P ′ of the ultrasonic wave P emitted from the transmission ultrasonic sensor 65.

However, similarly to the conventional example described with reference to FIG. 18, both ultrasonic sensors 65 and 67 are fixed to the sensor support portion 155 and the mounting angle of the spool 31 with respect to the bobbin winding surface 63 is fixed. There are restrictions on the diameter of the bobbin. Therefore, in the present embodiment, as in the embodiment shown in FIG. 1, from the maximum diameter of the fishing line 45 wound around the spool 31 to a certain diameter of the minimum diameter, that is, at point A in FIG. In the bobbin diameter region M extending from the point B to the point B, the ultrasonic sensor 6 for transmission is used.
The ultrasonic wave for reception 67 is capable of receiving the reflected wave P'of the ultrasonic wave P emitted from No. 5, and the ultrasonic wave sensors 65 and 67 can measure the yarn length in the wound yarn diameter region M. It has become.

Then, in the sensor mounting hole 159 located on the left side of the reel unit, the fishing line 45 is inserted from the above-mentioned specific line diameter.
11 to the minimum bobbin diameter, that is, in the bobbin diameter region N extending from the point B to the point C in FIG. 11, the transmitting ultrasonic sensor 165 that emits the ultrasonic waves P to the bobbin winding surface 63 is the transmitting ultrasonic sensor 6
5 is mounted in parallel with the reflected wave P ′, and the reflected wave P ′ can be received by the receiving ultrasonic sensor 67.

Thus, the yarn length measuring device according to this embodiment also
The time until the reflected wave P'of the ultrasonic wave P emitted from the transmitting ultrasonic sensors 65, 165 to the bobbin surface 63 is received by the receiving ultrasonic sensor 67 is measured, and the bobbin is wound based on the measured value. The yarn length measuring means for measuring the diameter, and the calculating means for calculating the yarn length based on the yarn winding diameter data from the yarn winding diameter measuring means and the rotation speed of the spool 31 detected by the encoder are provided. The numerical value of the specific bobbin diameter at the point B is stored in the ROM of the microcomputer of the measuring device. Then, in the yarn winding diameter region M extending from the point A to the point B, the yarn length is measured by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67, and the yarn winding diameter data is the specific yarn winding diameter at the point B. Then, the CPU switches to the yarn length measurement by the transmitting ultrasonic sensor 165 and the receiving ultrasonic sensor 67.

Similarly, when the fishing line 45 is wound up and the bobbin diameter data of the thread length measured by the transmitting ultrasonic sensor 165 and the receiving ultrasonic sensor 67 becomes the specific bobbin diameter at the point B from the minimum bobbin diameter, CPU has both ultrasonic sensors 165, 6
The yarn length measurement by 7 is switched to the yarn length measurement by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67.

FIG. 12 shows the outline of the mounting structure of the ultrasonic sensor in one embodiment of the yarn length measuring device according to the first and third aspects. In the figure, 167 is the frame frame of the reel unit. The sensor support portion provided in the
9 has three sensor mounting holes 171, 173, 175 formed therein. And 2 on the left side of the reel body
An ultrasonic sensor for transmission 65 and an ultrasonic sensor for reception 67 are provided in the respective sensor mounting holes 171 and 173, respectively.
It is arranged in a V shape with respect to the bobbin winding surface 63 so that the receiving ultrasonic sensor 67 can favorably receive the reflected wave P ′ of the ultrasonic wave P emitted from the transmitting ultrasonic sensor 65.

Then, the ultrasonic sensor 6 in this embodiment is used.
5 and 67 are also fixed to the sensor support portion 167, and the spool 3
Since the mounting angle of No. 1 to the bobbin winding surface 63 is fixed, there is a restriction on the measurable bobbin diameter. Therefore, from the maximum diameter of the fishing line 45 wound around the spool 31 to a certain diameter of the certain diameter, that is, from point A to point B in FIG.
In the bobbin diameter region M extending over the points, the transmitting ultrasonic sensor 65
The ultrasonic wave for reception 67 receives the reflected wave P'of the ultrasonic wave P emitted from
Both ultrasonic sensors 65 and 67 are used to measure the yarn length.

Then, in the sensor mounting hole 175 located on the right side of the reel unit, the fishing line 45 from the above-described specific fishing line diameter.
Up to the minimum bobbin diameter, that is, in the bobbin diameter area N extending from point B to point C in the figure, the supersonic wave for reception which receives the reflected wave P ′ of the ultrasonic wave P emitted from the ultrasonic wave sensor 65 for transmission. A sound wave sensor 177 is mounted in parallel with the reception ultrasonic wave sensor 67.

Thus, the yarn length measuring device according to this embodiment also
A reflected wave P ′ of the ultrasonic wave P emitted from the transmitting ultrasonic sensor 65 to the bobbin surface 63 is received by the receiving ultrasonic sensors 67, 1.
The time until it is received by 77, and the bobbin diameter measuring means for measuring the bobbin diameter based on the measured value, and the bobbin diameter data from the bobbin diameter measuring means and the rotational speed of the spool 31 detected by the encoder. And a calculating means for calculating the yarn length based on the above. The ROM of the microcomputer of such a yarn length measuring device stores the numerical value of the specific yarn winding diameter at the point B described above. Then, in the yarn winding diameter region M extending from the point A to the point B, the yarn length is measured by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67, and the yarn winding diameter data is the specific yarn winding diameter at the point B. Then, the CPU of the microcomputer switches to the yarn length measurement by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 177.

Similarly, when the fishing line 45 is wound up and the bobbin diameter data of the thread length measured by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 177 becomes the specific bobbin diameter at the point B from the minimum bobbin diameter, CPU is both ultrasonic sensors 65, 17
The yarn length measurement by 7 is switched to the yarn length measurement by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67.

Thus, also in each of the embodiments shown in FIG. 11 and FIG. 12, regardless of the increase or decrease in the diameter of the fishing line 45 wound around the spool 31 as compared with the conventional case, the minimum fishing line diameter of the fishing line 45 is changed. It is possible to widely measure the yarn length over the maximum yarn winding diameter. FIG. 13 shows an embodiment of a fishing reel equipped with the yarn length measuring device according to claim 6, and 179 in the figure.
Is a casing having a substantially L-shaped cross section provided in the frame frame 183 at the rear of the reel body 181. The casing 179 has a cover (not shown) attached to the upper portion with the spool 31 side opened.

Further, in the figure, reference numeral 185 designates two split support portions 18
5a and 185b, as shown in the figure, notches 187 and 189 are provided at the free ends of both ends of the divided supports 185a and 185b, respectively, as shown in the drawing. The support shafts 191 and 193 projecting from the bottom 179a of each of the notches 187 and 1 respectively.
It is engaged with 89. Then, both split support portions 185
a and 185b are rotatably connected by one connecting shaft 199 connected to the operating rod 197 of the solenoid 195 mounted in the center of the casing 179, and the operating rod 197 expands and contracts in the arrow direction. Split support 185a,
185b is displaced as shown by the solid line and the chain double-dashed line, and each spool facing surface 2 with respect to the bobbin winding surface 63 of the spool 31.
The mounting angles of 01 and 203 are changed.

Then, the spool facing surfaces 201 and 203
The transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67 are mounted in the sensor mounting holes 205 and 207 provided in the above-mentioned, and as described above, the split supporting portions 185a, 185a, which accompany the expansion and contraction of the operating rod 197 of the solenoid 195. The ultrasonic sensors 65, 6 for the bobbin surface 63 are interlocked with the displacement of the 185b.
The mounting angle of 7 changes.

Thus, the yarn length measuring device according to this embodiment also
A bobbin that measures the time until the reflected wave of the ultrasonic wave emitted from the transmitting ultrasonic sensor 65 to the bobbin surface 63 is received by the receiving ultrasonic sensor 67 and measures the bobbin diameter based on the measured value. A diameter measuring means and a calculating means for calculating the yarn length based on the yarn winding diameter data from the yarn winding diameter measuring means and the number of rotations of the spool 31 detected by the encoder are provided. At the position indicated by the chain double-dashed line, there is a restriction on the diameter of the bobbin that can be measured by the transmitting ultrasonic sensor 65 and the receiving ultrasonic sensor 67. Therefore, in the present embodiment, as described above, the mounting angle of both ultrasonic sensors 65 and 67 can be changed by expanding and contracting the operating rod 197 in the arrow direction.

Then, from the maximum diameter of the fishing line 45 to a certain diameter of the certain fishing line, both ultrasonic sensors 65, indicated by a chain double-dashed line,
When the thread length is measured at the mounting angle of 67, the diameter of the bobbin decreases as the fishing line 45 is fed out, and when the bobbin diameter becomes equal to or less than the specific thread winding diameter and the thread length cannot be measured at the mounting angle, the thread length is measured. Based on the specific thread winding diameter stored in the ROM of the microcomputer of the apparatus and the thread winding diameter data from the thread winding diameter measuring means,
The CPU of the microcomputer operates the solenoid 195 to displace the sensor support portion 185 to the solid line state, and the reflected ultrasonic wave emitted from the transmitting ultrasonic sensor 65 to the bobbin surface 63 is received by the receiving ultrasonic sensor 67. It can be received at.

Since the present embodiment is constructed in this way, the diameter of the fishing line 45 wound around the spool 31 is increased or decreased by feeding or winding the fishing line 45. In the bobbin diameter region up to the diameter, the attachment angle of both ultrasonic sensors 65 and 67 is set to the angle indicated by the chain double-dashed line by the expansion of the operating rod 197 of the solenoid 195.

The time until the reflected wave of the ultrasonic wave emitted from the transmitting ultrasonic sensor 65 is received by the receiving ultrasonic sensor 67 is measured by the bobbin diameter measuring means, and the bobbin diameter is determined based on the measured value. To be measured. Then, the yarn length is calculated by the calculating means based on the spool diameter data and the number of rotations of the spool 31 detected by the encoder, and the calculated value is the fishing line 4.
It will be displayed on the digital display as the pay-out yarn length of 5.

Further, as the fishing line 45 is paid out, the spool 31
When the diameter of the bobbin wound around is reduced and the bobbin diameter data coincides with the bobbin diameter of the specific bobbin diameter, the CPU of the microcomputer operates the solenoid 195 to activate the sensor supporting portion 1.
85 is moved to the solid line state. And in this state,
The yarn length is measured by both ultrasonic sensors 65 and 67.

As the fishing line 45 is wound up, the diameter of the line wound around the spool 31 is increased and both ultrasonic sensors 6
When the thread winding diameter data of 5, 67 becomes the specific thread winding diameter, the CPU of the microcomputer causes the solenoid 195.
Is operated to change the mounting angle of the ultrasonic sensors 65 and 67 from the state shown by the solid line to the state shown by the chain double-dashed line.

Therefore, according to this embodiment as well, regardless of the increase or decrease in the diameter of the fishing line 45 wound on the spool 31, the length of the fishing line 45 can be measured over a wide range from the minimum winding diameter to the maximum winding diameter. It is possible to By the way, conventionally, during night fishing, it has been pointed out that the hand is dark and it is difficult to change the bait, and there is a demand to know the time without moving the hand holding the fishing rod.

Therefore, the present applicant previously filed Japanese Patent Application No. 7-89.
In No. 349, a fishing reel using a thin plate battery as a power source for operating the yarn length measuring device was proposed. As shown in FIG. 14, the thin plate battery 209 was wound around the rear portion of the fishing rod 85 as shown in FIG. If the yarn length measuring device is operated by the thin plate battery 209 and the digital timepiece 211 and the lamp 213 that are operated by the thin plate battery 209 are attached to the rear part of the fishing rod 85, bait exchange for night fishing can be facilitated and the fishing rod 85 can be used. It is possible to check the time without moving the hand holding.

In addition, the fishing line 45 in the conventional line length measuring device
The amount of feeding out is an absolute value, but if there is a tidal current 217 in the sea 215 as shown in FIG.
Even if the fishing line 45 is fed 100 m, the tackle 219 may not reach the shelf position as indicated by the solid line. Therefore, for example, in consideration of the average tidal current of the fishing ground, a program of the yarn length measuring device may be configured so that the yarn length value is corrected and displayed shortly with respect to the measured value in advance at a predetermined ratio. The displayed value may be corrected according to the spring tide, the middle tide, and the low tide by operating the function keys arranged on the operation panel. Based on the change in the tidal current, the display value may be corrected.

According to these yarn length measuring devices,
The practicality of the fishing reel will be further improved.

[0072]

As described above, according to the yarn length measuring device for a fishing reel according to each of the claims, regardless of the increase or decrease in the winding diameter of the fishing line wound around the spool, the minimum winding diameter of the fishing line is obtained. It is now possible to measure a wide range of yarn lengths over the maximum yarn winding diameter.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a first embodiment of a fishing reel equipped with a yarn length measuring device according to claims 1 and 5. FIG.

FIG. 2 is an explanatory diagram showing a yarn length measuring operation of an ultrasonic sensor in an embodiment of the yarn length measuring device according to the first and fifth aspects.

FIG. 3 is a plan view of an essential part of a second embodiment of a fishing reel provided with the yarn length measuring device according to the first and fifth aspects.

FIG. 4 is a rear view of the fishing reel shown in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a plan view of essential parts of a third embodiment of the fishing reel including the yarn length measuring device according to the first and fifth aspects.

FIG. 7 is a rear view of the fishing reel shown in FIG.

8 is a sectional view taken along line VIII-VIII of FIG.

FIG. 9 is a rear view of an embodiment of a fishing reel equipped with the yarn length measuring device according to the first and second aspects.

10 is a plan view of relevant parts of the fishing reel shown in FIG. 9. FIG.

FIG. 11 is an explanatory diagram showing the yarn length measuring operation of the ultrasonic sensor in one embodiment of the yarn length measuring device according to the first and fourth aspects.

FIG. 12 is an explanatory diagram showing the yarn length measuring operation of the ultrasonic sensor in one embodiment of the yarn length measuring device according to the first and third aspects.

FIG. 13 is a plan view of an essential part of an embodiment of a fishing reel provided with the yarn length measuring device according to the invention.

FIG. 14 is a side view of a fishing line with a digital timepiece and a lamp mounted on the rear part.

FIG. 15 is an explanatory diagram showing the influence of tidal current on the fishing line.

FIG. 16 is a perspective view of a fishing reel equipped with a conventional yarn length measuring device.

FIG. 17 is a view showing a conventional ultrasonic sensor mounting structure.
3 is a rear perspective view of the fishing reel of FIG.

FIG. 18 is an explanatory diagram showing a yarn length measuring operation of an ultrasonic sensor in a conventional yarn length measuring device.

FIG. 19 is an explanatory diagram showing a yarn length measuring operation of an ultrasonic sensor in another conventional yarn length measuring device.

[Explanation of symbols]

31 spools 35, 89, 105, 129, 181 reel body 49 storage body 59 digital display 63 bobbin surface 65, 145, 165 transmission ultrasonic sensor 67, 147, 177 reception ultrasonic sensor 69 transmission / reception ultrasonic sensor 71 , 87, 103, 109, 127, 133, 15
5,167,185 Sensor support 195 Solenoid P Ultrasonic wave P'Reflected wave

Claims (6)

[Claims] 1. A spool rotation speed detecting means for detecting the rotation speed of a spool rotatably supported between side plates of a reel unit, and a sensor support portion provided between the side plates, which is mounted so as to face the spool winding surface. A transmission ultrasonic wave that emits ultrasonic waves to the surface of the fishing line wound from the maximum winding diameter to the minimum winding diameter of the fishing line wound on the spool up to a certain winding diameter and the winding surface from the specific winding diameter to the minimum winding diameter of the fishing line. The sound wave sensor is mounted on the sensor support portion so as to face the spool surface of the spool, and the reception ultrasonic sensor that receives the reflected waves of the ultrasonic waves from the surface of the spool and the ultrasonic sensor for transmission are emitted to the surface of the spool. Measure the time until the ultrasonic wave is received by the ultrasonic sensor for reception,
A thread winding diameter measuring means for measuring the thread winding diameter based on the measured value, and a thread length is calculated based on the thread winding diameter data from the thread winding diameter measuring means and the spool rotation speed detected by the spool rotation speed detecting means. A fishing reel yarn length measuring device comprising: a computing device; and a display for displaying the yarn length computed by the computing device. 2. The transmitting ultrasonic sensor comprises two ultrasonic sensors mounted at different mounting angles with respect to the spool surface of the spool, and the receiving ultrasonic sensor corresponds to each transmitting ultrasonic sensor. The yarn length measuring device for a fishing reel according to claim 1, comprising two ultrasonic sensors mounted on the sensor support portion. 3. The ultrasonic sensor for transmission comprises one ultrasonic sensor mounted at a predetermined mounting angle with respect to the spool surface of the spool, and the ultrasonic sensor for reception is the maximum diameter of the fishing line. To a specific bobbin diameter, an ultrasonic sensor that receives reflected waves of ultrasonic waves from the bobbin surface and a parallel 2 that receives reflected waves of ultrasonic waves from the bobbin surface from the specific bobbin diameter to the minimum bobbin diameter of the fishing line
It consists of one ultrasonic sensor, It is characterized by the above-mentioned.
The reel length measuring device for the fishing reel described above. 4. The ultrasonic sensor for transmission is arranged on a bobbin winding surface of a fishing line wound on a spool from a maximum bobbin winding diameter to a certain specific bobbin winding diameter and on a bobbin winding surface from the specific bobbin winding diameter to a minimum bobbin winding diameter of the fishing line. It is composed of two ultrasonic sensors arranged in parallel that emit ultrasonic waves, and the receiving ultrasonic sensor is composed of one ultrasonic sensor that receives the reflected wave of the ultrasonic wave from each transmitting ultrasonic sensor. The yarn length measuring device for a fishing reel according to claim 1. 5. An ultrasonic sensor for transmission is mounted at a predetermined mounting angle with respect to the bobbin surface of a spool, and the bobbin surface from the maximum bobbin diameter of a fishing line wound on the spool to a certain specific bobbin diameter. An ultrasonic sensor that emits ultrasonic waves to
It consists of one ultrasonic sensor which is arranged orthogonal to the surface of the spool, and emits ultrasonic waves to the surface of the spool from the specific diameter of the spool to the minimum diameter of the fishing line. 2. The fishing reel according to claim 1, wherein the ultrasonic sensor arranged as above also functions as a receiving ultrasonic sensor that receives reflected waves of ultrasonic waves emitted from the ultrasonic sensor to the bobbin surface. Yarn length measuring device. 6. A spool rotation speed detecting means for detecting a rotation speed of a spool rotatably supported between side plates of the reel body, and a sensor support portion provided between the side plates, which is mounted so as to face a spool winding surface of the spool, An ultrasonic sensor for transmitting ultrasonic waves to the spool surface of the spool, a receiving ultrasonic sensor for receiving reflected waves of ultrasonic waves from the spool surface, and ultrasonic waves emitted from the ultrasonic sensor for transmission to the spool surface. Is measured by the ultrasonic sensor for reception,
A thread winding diameter measuring means for measuring the thread winding diameter based on the measured value, and a thread length is calculated based on the thread winding diameter data from the thread winding diameter measuring means and the spool rotation speed detected by the spool rotation speed detecting means. In a yarn length measuring device for a fishing reel equipped with a computing means and a display for displaying the yarn length computed by the computing means, the sensor support portion is configured to be displaceable, and the sensor support An actuator for displacing the portion is mounted on the reel unit, and the sensor supporting portion is displaced by the actuator based on the bobbin diameter data from the bobbin diameter measuring means, and an ultrasonic sensor for transmission and an ultrasonic wave for reception on the bobbin winding surface of the spool A fishing reel yarn length measuring device characterized in that a mounting angle of a sensor can be changed.