JP2010166839A - Fishing reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fishing reel enabling a target value to be set without depending on the characteristics of a fishline and the like, and capable of automatically controlling drag in both directions of tightening and loosening. <P>SOLUTION: The fishing reel includes a drag mechanism enabling the slippage of a clutch for transmitting the rotary force in the winding direction of the fishline to a spool to be set by using a motor and/or a handle as a driving source. In the fishing reel, a second motor different from the motor, and for operating the drag mechanism so as to increase or decrease the slippage of the clutch, two rotational speed sensors for detecting rotational speeds at an optional position at the driving source side of the clutch and an optional position on the spool side and a feedback circuit for calculating the slip factor of the clutch from the detected values of the rotational speed sensors and controlling the second motor so that the slip factor may be within the tolerance of a previously optional set target value. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fishing reel that automatically adjusts a drag during actual fishing.

  The drag mechanism employed in many fishing reels is configured to connect a spool for winding a fishing line and a driving source such as a motor for driving the spool in the direction in which the fishing line is wound up via a clutch. This is a mechanism that can be adjusted by an operator such as a drag lever, and is mainly adjusted for the purpose of preventing the fish line from being cut off due to overloading when the spool is wound up, and causing fish to be cut and cut off. Is done. Also, if the clutch slips with a slight load, it takes time to catch the fish, and the fishing line may be unwound and entangled more than necessary. In this case, increase the frictional force of the clutch. Tighten the drag as shown.

  However, a certain amount of experience is required to properly adjust the drag according to the type of fish and how to fish, and it is difficult for even an expert to adjust the drag according to the situation during actual fishing. It is. For this reason, once the drag is set, the actual condition is that the drag is not changed thereafter. However, in that case, there is a limit to the fishing result, and it is particularly difficult to catch a big thing.

  Against this background, attempts have been made to automatically adjust the drag according to the actual fishing situation. For example, when the tension of the fishing line during actual fishing is detected and the drag is adjusted by an electric actuator so that the detected value falls within the target value (Patent Document 1), or when slip of the drag is detected, One that increases drag force is known (Patent Document 2).

Japanese Utility Model Publication No. 4-30868 JP-A-7-246050

  However, in the configuration of Patent Document 1, since the tension varies depending on the thickness and material of the fishing line, in addition to the type of fish and how to fish, there is a trouble of setting a target value according to the characteristics of the fishing line to be used. In this case, since it is determined that the spool slips when the spool is rotated one or more times in the fishing line feeding direction, the drag adjustment is not performed at all when the conditions are not satisfied, and only the adjustment in the drag tightening direction can be performed. .

  The present invention solves the above-described conventional problems. In short, the object is to set a target value independent of the characteristics of the fishing line, etc., and to automatically drag in both directions of tightening and loosening. It is to provide an adjustable fishing reel.

  In the present invention, in order to achieve the above-described object, fishing with a drag mechanism capable of setting a slip amount of a clutch that transmits a rotational force in a winding direction of a fishing line to a spool using a motor or / and a handle as a drive source. A second motor that operates the drag mechanism so that the slip amount of the clutch different from the motor can be increased or decreased, and the rotational speeds of the arbitrary position on the drive source side and the arbitrary position on the spool side of the clutch, respectively. Two rotational speed sensors to be detected, and a slip ratio of the clutch is calculated from detection values of the rotational speed sensors, and the slip ratio is within an allowable range of a target value that is arbitrarily set in advance. A means of providing a feedback circuit for controlling two motors was used.

According to the present invention, the slip ratio of the clutch is directly calculated from the difference between the rotation speeds of the spool side and the drive source side detected by the two rotation speed sensors during the fishing line winding operation, and this is calculated by feedback control. Adjust to fit within the range. For this reason, in the reel of the present invention, the slip ratio of the clutch during actual fishing is maintained within the allowable range of the target value. The slip ratio of the clutch can be calculated by the following equation (1), for example.
Formula (1) (Nm-Ns) / Nm
However, Nm is the rotation speed of the drive source, Ns is the rotation speed of the spool. When a reduction gear is connected to the spool or the drive source and the rotation speed sensor detects the rotation speed of the reduction gear, the detected value is reduced. A value divided by the ratio can be used as the number of rotations of the spool or the drive source. On the other hand, the target value can be arbitrarily set by the user from 0 to 100%, and the larger the value, the easier the clutch slips. In addition, an allowable range is set by setting an allowable error above and below the target value as a central value, but the numerical value can be arbitrarily set as a characteristic value of the feedback circuit at the time of programming.

  Further, in the present invention, the drag mechanism includes a pair of inclined cams whose cam surfaces can engage with each other, and a drag lever is provided on one of the cams, and a rotational force of the second motor is applied to the other inclined cam, The feedback circuit uses means for controlling the second motor when the rotation angle of the slope cam on the drag lever side is a constant angle. According to this means, the normal manual adjustment by the drag lever and the automatic adjustment by the feedback circuit can be switched depending on the position of the drag lever.

  Furthermore, in the present invention, the two slope cams use a means in which the cam surface has a stopper that limits the maximum rotation angle of each other. With this means, after the respective slope cams are rotated to the limit rotation angle (maximum rotation angle), the two slope cams can be rotated together.

  In addition, the present invention includes an interrupt switch that drives the second motor in any direction in which the slip amount of the clutch is variable, that is, the frictional force increases or decreases, in preference to the feedback circuit. Then, the feedback control is canceled, and the user can arbitrarily drive the second motor and perform drag adjustment without using the drag lever.

  Furthermore, the present invention includes an angle sensor that detects the rotation angle of the slope cam set by the drag lever, and a memory that stores the detected value of this angle sensor as the initial rotation angle of the other slope cam. According to this means, the initial rotation angle is called from the memory by a separate button operation or shelf position detection, and the second motor is driven in preference to the feedback circuit to automatically return to the drag force initially set by the user. be able to.

  According to the present invention, since the slip ratio of the clutch calculated from the rotational speeds on the drive source side and the spool side is feedback controlled in a direction that matches the target value, the drag is automatically controlled not only in the direction of tightening the drag but also in the direction of loosening. Can be adjusted automatically, and precise control is possible according to the situation. In addition, since the target value is quantified as a slip rate, the setting is clear, and by memorizing the set value, fishing based on the slip rate (target value) will be accurately reproduced from the next time onwards. it can. Furthermore, since the drag mechanism is constituted by a pair of slope cams operated by the drag lever and the second motor, the drag can be adjusted both manually and automatically. Further, in the case of providing an interrupt switch, the drag force can be adjusted / changed according to the user's preference even during automatic adjustment. Furthermore, since the initial drag force set by the user operating the drag lever is stored, it is possible to easily return to the initial drag force using the second motor.

Explanatory drawing which showed the internal mechanism of the fishing reel of this invention Circuit diagram of feedback circuit Graph showing the relationship between slip rate and target value Explanatory drawing of the main parts showing the drag mechanism and angle sensor External view of the reel of the present invention according to the embodiment

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing an internal mechanism of a fishing reel according to the present invention, wherein 1 is a spool, 2 is a double-bearing type drive shaft that supports the spool 1, and 3 is positioned on one side of the spool 1. The transmission gear 4 is pivotally supported on the drive shaft and transmits the power (rotational force) of the power motor M or handle H as a drive source to the spool 1. It is the provided clutch part.

  In this embodiment, the clutch section 4 is configured as a multi-plate clutch by alternately arranging two spool-side friction disks 4a and two transmission gear-side braking disks 4b. The friction disk 4a can be made of one layer of stainless steel, and the brake disk 4b can be made of three layers of stainless steel as an intermediate layer and resin layers such as Teflon (registered trademark) formed on the front and back. However, the present invention is not limited to this. Absent. In the clutch portion 4, 5 is a large-diameter wave washer fitted on the outer periphery of the brake disk 4b near the spool, and 6 is a small-diameter wave washer fitted on the inner circumference of the friction disk 4a near the transmission gear. The corrugated washers 5 and 6 have waviness in the thickness direction, and set an initial clearance for each disk and also function as an elastic member for separating each disk.

  On the other hand, the shaft hole 1a of the spool 1 is provided with a return spring 7 on the clutch part side on the right side of the drawing and a compression spring part 8 on the opposite side with an inward flange 1b formed in the middle. The return spring 7 has the clutch portion side as a fixed end, and the other end engages with the inward flange 1b, and urges the spool 1 in the opening direction of the clutch portion 4. On the other hand, the compression spring portion 8 is symmetrical with the return spring 7 with the inward flange 1b of the spool 1 as the axis of symmetry, and one end on the right side of the drawing is locked to the inward flange 1b, and the one end is the clutch portion. 4 becomes a fixed end after friction welding, and the other end abuts on a drag mechanism (described later) provided on the left side of the drive shaft 2 in the drawing and is pressed toward the right side in the drawing. Accordingly, the compression spring portion 8 compresses the amount corresponding to the operation amount (rotation amount) of the drag mechanism, and the compression load acts on the inward flange 1b, whereby the elastic force of the return spring 7 is obtained. Against this, the spool 1 is urged in the direction in which the clutch portion 4 is frictionally joined. Thus, the compression spring portion 8 is an element that determines the range of the drag force. In this embodiment, the compression spring portion 8 is configured by combining a coil spring portion 9 and a disc spring portion 10 having different spring constants in series. is doing.

  Next, 11 is a drag mechanism provided on the other side opposite to the clutch portion 4 of the spool 1, and converts the rotational motion into an axial linear motion along the drive shaft 2 with the drive shaft 2 as the rotational axis. Then, the compression spring portion 8 is compressed, and the clutch portion 4 is urged through the spool 1 in the direction in which the frictional force increases. In particular, in this embodiment, the drag mechanism 11 is composed of a combination of a pair of inclined cams 12 and 13 whose cam surfaces engage with each other in a concave-convex manner. The inclined cams 12 and 13 have tapered cam surfaces 12a and 13a that engage with each other, and a drag lever 14 is integrally provided on the outer (left side in the drawing) inclined cams 12. Since the slope cam 12 provided with the drag lever 14 is restricted in its axial movement by the drag knob 15 for fine adjustment, the slope cam 12 rotates on the drive shaft together with the drag lever 14 but does not move the axis. Functions as a cam.

  Therefore, not only when the drag lever 14 is manually operated to rotate the outer slope cam 12, but also when the inner slope cam 13 is rotated by a dedicated drag adjustment motor, which will be described later, the mutual cam surfaces are By riding on the cam surface of the other party, a pressing force toward the right side in the drawing acts on the inside (right side in the drawing) slope cam 13, and only the slope cam 13 moves axially on the drive shaft. The frictional force is biased in the increasing direction. On the other hand, when the inclined cams 12 and 13 are rotated in the opposite direction, the inclined cam 13 is axially moved to the left side in the drawing to reduce the frictional force of the clutch portion 4. That is, the slip amount of the clutch portion 4 is set by the displacement of the inclined cam 13 in the axial direction according to the rotation amount of the inclined cams 12, 13. In addition, since the elastic restoring force of the compression spring portion 8 acts, the inclined cam 12 and the cam surface are always in contact with each other and rotated and moved axially.

  In this embodiment, the cam surfaces of the pair of inclined cams 12 and 13 are provided with stoppers 12b and 13b that limit the maximum rotation angle of each other. Therefore, the inclined cams 13 and 14 can be rotated together with respect to the rotation after the maximum rotation angle by the stopper.

  Reference numeral 16 denotes a drag adjusting motor (corresponding to the second motor described in the claims) that rotates the slope cam 13 inside the drag mechanism 11 in the forward and reverse directions. The reduction gears 16a and 16b are appropriately connected. Connected through.

  Next, the configuration for controlling the motor 16 will be described. First, 17 is a rotational speed sensor for detecting the rotational speed of the spool 1, and 18 is a rotational speed for detecting the rotational speed of the power motor M which is a drive source of the spool 1. It is a sensor. These rotational speed sensors 17 and 18 are simple to be constituted by a magnetic sensor composed of a combination of a magnet and a Hall element because they are not easily affected by disturbances and do not require a power source. It is also possible to constitute the rotational speed sensors 17 and 18 by sensors. In this embodiment, the rotational speed sensor 17 of the spool 1 is provided on the drive gear 19 of a level winder (not shown) that adjusts the winding position of the fishing line according to the movement of the spool 1, while the rotational speed of the power motor M is provided. The sensor 18 is provided in a reduction gear 20 disposed between the power motor M and the transmission gear 4.

  The two rotational speed sensors 17 and 18 are connected to the input side of the feedback circuit shown in FIG. 2, and the drag adjusting motor 16 is connected to the output side. In this embodiment, the feedback circuit divides the detected values from the two rotation speed sensors 17 and 18 by the gear ratio (reduction ratio) of the drive gear 19 and the reduction gear 20 to rotate the spool 1 and the power motor M. The number is obtained, and the slip rate of the clutch portion 4 is calculated based on the difference between the respective rotational speeds. Furthermore, when the calculated slip rate is compared with a target value arbitrarily set in advance by the user as an input value, and the calculated slip rate deviates from the target value, the slip rate of the target value and Thus, the drag adjusting motor 16 is driven so as to correct the actual slip rate.

  Such calculation of the slip ratio can be performed at an arbitrary timing. Specifically, calculation is performed every time a signal corresponding to five pulses is input from the rotational speed sensor 18 of the power motor M, and calculation can be performed every predetermined time (for example, one second) by a timer.

  Furthermore, the driving time of the motor 16 for adjusting the slip ratio can be arbitrarily set. However, if the motor 16 is continuously driven, the slip rate may change abruptly and the spool 1 winding operation may flutter, and the load on the motor 16 and fishing line may increase rapidly. It is preferable to perform an inching operation (inching) that can be adjusted step by step. Further, the interval of the inching operation is preferably set in consideration of the characteristics of the motor 16 and the like. For example, the interval can be set to 1 second, but is not limited to this interval. Further, since the operation direction of the drag mechanism 11 is different depending on whether the slip ratio of the clutch unit 4 exceeds or falls below the target value, the rotation direction of the motor 16 is also reversed, but the motor 16 is driven in each rotation direction. It is also possible to change the time. Specifically, when the motor 16 is driven in the direction of loosening the clutch unit 4 (in the direction of increasing the slip amount by reducing the frictional force) because the slip rate exceeds the target value, the drive time is 0.1 second, On the other hand, when the motor 16 is driven in the direction in which the clutch portion 4 is tightened, it is preferable to shorten the drive time of the motor 16 particularly in the direction in which the clutch portion 4 is loosened.

  On the other hand, when the slip rate of the clutch unit 4 matches the target value, the feedback circuit does not output the drive signal of the motor 16 and maintains the slip rate. The target value can be set by the user arbitrarily selecting a numerical value from 0 to 100%. Furthermore, it is possible to have a tolerance of several percent above and below the target value. Specifically, when the target value can be set every 10%, a range of ± 7.5% of the target value can be taken as an example of the allowable error as shown in FIG. Therefore, in this example, when the user sets the target value of the slip ratio to 50%, the motor 16 is not controlled when the slip ratio calculated by the feedback circuit falls within the range of 42.5 to 57.5%. While the hoisting operation is continued at the slip rate as it is, the motor 16 is controlled so that the slip rate becomes 50% of the target value when the range is exceeded.

  With the configuration described so far, the drag can be automatically adjusted if the drag lever 14 is moved to the origin position. However, the automatic adjustment is canceled and the user adjusts the drag at his own discretion each time. Sometimes you want to. As a method therefor, there is a method of manually adjusting the drag as in the past by operating the drag lever 14 at the origin position in the direction of drag tightening. That is, in this case, the drag lever 14 has a switch function for turning off the motor control of the feedback circuit. At the same time, the drag lever 14 has a function of returning to the automatic drag adjustment mode by calling the set slip rate target value again by returning to the original position. The origin position of the drag lever 14 can be exemplified by a position where the rotation angle of the outer slope cam 12 is 0 degrees, for example, but any rotation angle can be set as the origin position if it is a constant angle.

  In addition, there is an interruption method in which the user arbitrarily controls the motor 16 even when the drag lever 14 is at the origin position. Therefore, a configuration for realizing this method will be described. An interrupt switch for driving the motor 16 in preference to the feedback circuit (a name such as a dragging / relaxing button may be changed) is provided in the reel body. That is, if the interrupt switch is pressed, the user can arbitrarily drive the motor 16 to adjust the drag even during automatic adjustment. During this time, the drag lever 14 and its slope cam 12 do not rotate at all, and the drag is adjusted only by the slope cam 13 connected to the motor 16. Note that the drive control of the motor 16 by the interrupt switch may be control that continuously drives the motor 16 while the switch is being pressed, but if this is done, the drag force is changed abruptly and the fishing line is changed. Inadvertent loads may be applied to the motor and the power motor. Therefore, it is preferable to perform an inching operation that intermittently drives the motor 16 except during an operation such as clutch on / off. Specifically, each time the interrupt switch is pressed, the motor 16 is driven for a predetermined time or a predetermined angle, and this pressing operation is repeated to increase the drag force stepwise.

  As described above, even when the interrupt switch is operated, the user can arbitrarily adjust the drag during the automatic drag adjustment, but this method automatically adjusts the drag lever 14 even though the drag lever 14 is at the origin position. Since the mode itself is canceled, it is preferable to provide a function for returning to the automatic adjustment mode again. As a control configuration for that purpose, for example, by pressing and operating the automatic winding on / off switch provided from the beginning, once the automatic winding is stopped, the automatic winding on and off switch is pressed again to restart automatic winding, A configuration of returning to the automatic adjustment mode can be employed, but a dedicated automatic adjustment return switch can be provided separately.

  Next, a configuration for returning to an initial drag force (hereinafter referred to as a strike position) set by the user by operating the drag lever 14 will be described. As shown in FIG. 4, the slope cams 12 and 13 of the drag mechanism 11. Angle sensors 21 and 22 are provided for each. The angle sensors 21 and 22 are provided with sensor portions 21b and 22b for detecting the rotation angle of the slope cams 12 and 13 at one end of a rotation shaft that pivotally supports gears 21a and 22a meshing with the outer circumferences of the slope cams 12 and 13, respectively. Is. Further, the angle sensor 21 of the one slope cam 12 provided with the drag lever 14 detects the initial rotation angle of the slope cam 12 when the user first manually operates the drag lever to set the drag force, This detected value is stored in the memory. With this configuration, for example, if a separate lever setting call switch is pressed, the initial rotation angle is called from the memory, and the slope cam 13 is rotated by driving the motor 16 in the opposite direction to the slope cam 12 described above by that angle. As a result, the drag force can be returned to the strike position. In other words, as is apparent from the above description, the automatic return of the strike position is performed by storing the rotation angle of the slope cam 12 on the drag lever 14 side in the memory and this value of the slope cam 13 connected to the motor 16. In place of the rotation angle, actually, the slope cam 13 is rotated by driving the motor 16, and the angle sensor 22 on the slope cam 13 side detects whether or not the slope cam 13 has rotated to a predetermined rotation angle. It is used for Here, the trigger for automatic return of the strike position is based on pressing of a dedicated lever setting call switch, but is not limited to this. For example, the introduction of the device is stopped at a desired shelf position (water depth). When the shelf stop mechanism is adopted, it may be detected that the device has reached the designated shelf position and automatically returned to the strike position.

  A more specific embodiment of the present invention will be described with reference to FIG. FIG. 5 is an external view of the reel of the present invention, 30 is a central processing unit incorporating a feedback circuit and other necessary processing circuits, and 31 and 32 are two upper and lower stages provided on the upper surface of the central processing unit 30. The liquid crystal display units 33 to 38 are various switches. The switch group includes a conventional power switch, an automatic winding switch, a clutch on / off switch, a shelf position storage switch, and an interrupt switch (drag specific to the present invention described above). Tightening / loosening button) and lever setting call switch are included.

  Next, an example of a processing flow related to the automatic adjustment mode of the reel of the present invention will be described. First, the power is turned on (S1), and in this case, the interrupt switch that also functions as the automatic adjustment mode switch is pressed and held (for example, 2 seconds). (S2). Then, the screen shifts to a target value setting screen, and the drag force (strike position) initially set by the user by operating the drag lever 14 or the drag knob 15 is stored in the memory as an internal process. Specifically, the rotation angle of the slope cam 12 on the drag lever 14 side detected by the angle sensor 21 is stored in the memory as the rotation angle of the other slope cam 13 in the reverse rotation direction. On the target value setting screen, each time the interrupt switch is pressed, the slip rate is switched and displayed as A0 to A9 every 10% from 0 to 90%. That is, in this embodiment, the target slip rate increases each time the interrupt switch is pressed, but the display order may be reversed and the slip rate may be decreased. That is, when performing the automatic adjustment, the user presses the interrupt switch as many times as necessary, and selects an arbitrary slip rate from A0 to A9 according to the target fish, the fishing line to be used, and the fishing method (S3).

  In this embodiment, AA that calls the drag force of the strike position is assigned between A9 and A0 without setting the target slip rate. In this setting AA, the rotation angle stored in the step (S2) is called from the memory, and the motor 16 is driven to rotate the slope cam 13, and the drag force is shifted to the strike position. And in this setting AA, unless the user operates the interruption switch to incline the motor 16, the winding is performed by the drag force of the strike position continuously during actual fishing. Furthermore, in this embodiment, another OF display is assigned between A9 and A0. When this setting OF is selected, the drag automatic adjustment function and the strike position calling function do not operate, and the drag lever 14 is used exclusively by the drag lever 14 except when stopping with an arbitrary drag force such as a shelf stop mechanism. How to adjust the fishing.

  On the other hand, when a target value is selected from A0 to A9, the target value is determined by returning the drag lever 14 to the origin position (the slope cam 12 is at a constant angle), and enters an automatic adjustment mode based on the set target value. (S4). Then, by pressing the automatic winding switch (S5), the power motor is driven to rotate the spool in the winding direction, and the slip rate is calculated by the configuration and control described with reference to FIGS. 1 to 4 during this winding operation. At the same time, the motor 16 is controlled to correct the slip ratio of the clutch unit 4 to a actually required value based on the set target value and its allowable range.

  In the present invention, the motor can be controlled to engage and disengage the clutch. Therefore, by controlling the motor so that the contact and disengagement are repeated during the winding of the fishing line, the shackle operation that is effective for squid fishing and the like is also possible. Is possible.

H Handle M Power motor 1 Spool 2 Drive shaft 4 Clutch part 11 Drag mechanism 12/13 Slope cam 14 Drag lever 16 Drag adjustment motor 17/18 Speed sensor 21/22 Angle sensor 30 Central processing unit (feedback circuit)

Claims (5)

In a fishing reel equipped with a drag mechanism capable of setting a slip amount of a clutch that transmits a rotational force in the winding direction of a fishing line to a spool using a motor or / and a handle as a drive source, the slip amount of the clutch can be increased or decreased. A second motor different from the motor for operating the drag mechanism, two rotational speed sensors for respectively detecting rotational speeds at an arbitrary position on the drive source side and an arbitrary position on the spool side of the clutch, and these rotational speed sensors And a feedback circuit that controls the second motor so that the slip ratio falls within an allowable range of a target value that is arbitrarily set in advance. Featured fishing reel. The drag mechanism includes a pair of inclined cams whose cam surfaces can engage with each other in a concave-convex manner. One of the inclined cams is provided with a drag lever, and the rotational force of the second motor is applied to the other inclined cam. The fishing reel according to claim 1, wherein the second motor is controlled when the rotation angle of the side slope cam is constant. The fishing reel according to claim 2, wherein the two slope cams have stoppers for limiting a maximum rotation angle between the cam surfaces. 4. A fishing reel according to claim 1, further comprising an interrupt switch for driving the second motor in a direction in which the slip amount of the clutch increases or decreases in preference to the feedback circuit. 5. An angle sensor for detecting a rotation angle of a slope cam set by a drag lever, and a memory for storing a detected value of the angle sensor as an initial rotation angle of the other slope cam. Fishing reel.

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