JP2006197810A - Spool braking device of double bering reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spool braking device of a double bearing reel, with which scaling up of a reel is controlled even if a spool braking device is arranged at the outside of a spool. <P>SOLUTION: The spool braking mechanism 25 for a double bearing reel is a mechanism that is used for casting, rotatably attached to a reel main body, brakes a spool and is equipped with a spool braking unit 40, a rotational speed sensor 41 and a spool control unit 42. The spool braking unit has a rotor 60 that has a plurality of magnets 61 arranged in the rotation direction and having alternately different polarities, linked to the spool and rotated, a plurality of coils 62 having end faces positioned at opposing positions on the side of the rotor, attached to the reel body at intervals in the circumferential direction, connected in series and having a winding diameter larger than the whole length and a switch element 63 connected to both ends of a plurality of the coils connected in series and brakes the spool. The rotational speed sensor detects tension acting on a fishline played out from the spool in casting. The spool control unit controls on/off of the switch element according to tension detected by the spool control unit. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a spool brake device, and more particularly to a spool brake device for a dual-bearing reel that is used for casting and that is rotatably mounted on a reel body and brakes a spool on which a fishing line is mounted in an electrically controllable manner.

  2. Description of the Related Art A spool braking device that brakes a spool of a dual-bearing reel in an electrically controllable manner is known. A conventional electrically controllable spool braking device has a spool braking unit (conventional example of spool braking means) and a spool control unit (conventional example of spool control means) for electrically controlling the spool braking unit. (For example, see Patent Documents 1 and 2).

  In the former conventional spool braking device, the spool braking unit includes a plurality of magnets mounted on the outer periphery of the spool shaft outside the spool, and a plurality of radially arranged end surfaces facing the outer peripheral side of the plurality of magnets. Coil and a switch element (microprocessor). The spool control unit identifies a peak time during which the spool rotates at the maximum rotation speed, and controls the spool braking unit based on the identified peak time.

In the latter conventional spool braking unit, the spool braking unit is spaced apart in the circumferential direction by a plurality of magnets fixed to the inner peripheral surface of the spool body of the spool and a spool shaft on which the spool is rotatably mounted. It has a plurality of mounted coils and switching elements connected to both ends of the coils. The coil is arranged on the inner peripheral side of the plurality of magnets so as to face the magnets. The spool control unit controls the braking force by turning on and off the switch element. Specifically, the spool control unit detects the tension acting on the fishing line due to a change in the rotation speed of the spool, and when the tension falls below a certain level, the spool element is short-circuited to brake the spool.
JP-A-11-332436 JP 2000-217478 A

  In the former spool braking device, a plurality of magnets are arranged on the outer periphery of the spool shaft outside the spool, and a plurality of coils are radially arranged on the outer peripheral surface of the plurality of magnets with the end surfaces facing the magnets. Has been placed. When the coils are arranged radially in this way, the dimensions in the spool axial direction are not so large. However, since the coils are arranged radially, the area of the spool shaft in the radial direction is increased, the dimension of the reel body in the radial direction of the spool shaft is increased, and the double-bearing reel is increased in size.

  In the latter spool braking device, a magnet is arranged on the inner circumference of the bobbin trunk, and a coil is arranged on the spool shaft on the inner circumference side of the magnet. Therefore, since the spool braking unit is arranged on the inner peripheral portion of the spool body of the spool, the radial dimension of the spool shaft can be made smaller than that of the former spool braking device. However, when the spool control unit is arranged on the inner peripheral portion of the spool body of the spool as described above, the spool braking unit cannot be arranged in the case of a dual-bearing reel having a spool with a small diameter of the spool body. Therefore, in this case, the spool braking device must be arranged outside the spool like the former spool braking device. For this reason, if the spool body is arranged outside the spool with a small diameter of the bobbin trunk, the reel body becomes longer in the spool axial direction, which also increases the size of the dual-bearing reel.

  An object of the present invention is to make it possible to suppress an increase in the size of a reel in a spool brake device for a dual-bearing reel even if a spool brake device is provided outside the spool.

  A dual-bearing reel spool braking device according to a first aspect of the present invention is a device that brakes a spool that is used for casting and rotatably mounted on a reel body, and includes spool braking means, casting state detecting means, and spool control means. And. The spool braking means has a plurality of magnetic poles that are arranged side by side in the rotational direction and have different polarities and rotate in conjunction with the spool, and an end face is disposed at a position facing the side surface of the rotor and spaced in the circumferential direction. A plurality of coils which are mounted on the reel body and are connected in series with a winding diameter larger than the length along the axis of the spool, and switch means connected to both ends of the plurality of coils connected in series are provided to brake the spool. It is means to do. The casting state detection means is means for detecting the casting state. The spool control means is means for on / off controlling the switch element in accordance with the tension detected by the tension detection means.

  In this spool braking device, casting is performed, the spool rotates in the line feeding direction, and the fishing line is released from the spool. When the spool rotates, the coil crosses the magnetic field lines generated by the rotor, and the coil generates electricity. When the switch element is turned on, the generated electric energy is converted into heat and consumed, and the spool is braked. At this time, the switch element of the spool braking means is on / off controlled in accordance with the casting state detected by the casting state detecting means, and the braking force of the spool being cast changes. In this spool braking means, end faces of a plurality of coils having a winding diameter larger than the length along the axis of the spool are arranged to face a side surface of a rotor having a plurality of magnetic poles. For this reason, it is not necessary to provide in the inside of a spool. For example, the rotor can be disposed on the outer surface of the flange portion of the spool. Moreover, since the winding diameter of the coil is larger than the length along the axis, even if the coil is provided to face the flange portion of the spool, for example, the dimension in the axial direction of the spool can be the same as the dimension for housing the conventional braking device. . Here, since the end face of the coil is arranged to face the side surface of the rotor, an increase in the radial dimension of the spool can be suppressed even if the spool braking means is provided outside the spool. In addition, since the coil having a smaller length along the axis than the winding diameter is used, even if the spool braking means is provided outside the spool, an increase in the length of the spool in the axis direction can be suppressed. For this reason, even if a spool braking device is provided outside the spool, an increase in the size of the reel can be suppressed.

  A spool brake device for a dual-bearing reel according to a second aspect of the present invention is the apparatus according to the first aspect, wherein the casting state detecting means has a tension detecting means for detecting a tension acting on the fishing line released from the spool during casting. In this case, since the tension is detected in the casting state and the spool is braked, the spool can be braked so that the tension is as small as possible and the device can be cast far away.

  A spool braking device for a dual-bearing reel according to a third aspect of the present invention is the device according to the first or second aspect, wherein the plurality of coils are wound in a fan shape around an axis parallel to the axis of the spool and centered on the axis. The length in the direction along the axial center is ¼ or less of the diagonal length of the sector. In this case, since the bi-directional length of the shaft, that is, the length of the coil is less than 1/4 of the diagonal length, that is, the maximum winding diameter, by increasing the winding diameter even if the total length is shortened The coil area is increased, and the braking force can be maintained to prevent an increase in the axial dimension of the spool.

  A spool brake device for a dual-bearing reel according to a fourth aspect of the present invention is the device according to any one of the first to third aspects, wherein the rotor is fixed to the flange portion of the spool, and the polarity of the spool shaft is changed alternately. It has a plurality of magnets arranged side by side in the rotational direction as the center. In this case, since the rotor is composed of a plurality of magnets having different polarities alternately, the structure of the rotor is simpler and cheaper than when magnetized using, for example, a cylindrical molded magnet. Become.

  A spool brake device for a dual-bearing reel according to a fifth aspect of the present invention is the device according to any one of the first to fourth aspects, wherein the spool control means is mounted on a surface of the reel body facing the one end surface of the spool, and a plurality of coils are provided. An attached circuit board and a plurality of control elements mounted on the circuit board are included. In this case, since the circuit board is mounted on the surface facing the one end surface of the spool of the reel body, the coil disposed facing the periphery of the rotor can be directly attached to the circuit board. For this reason, the lead wire which connects a coil and a circuit board becomes unnecessary, and the insulation defect of a coil and a circuit board can be reduced. In addition, since the coil is attached to the circuit board attached to the reel body, the coil is attached to the reel body only by attaching the circuit board to the reel body. For this reason, an apparatus can be assembled easily.

  A spool brake device for a dual-bearing reel according to a sixth aspect of the present invention is the device according to the fifth aspect, wherein the circuit board has a notch formed along the radial direction and disposed substantially concentrically with the spool shaft core. A ring member having a shape. In this case, since the circuit board is a washer-shaped ring-shaped member and is disposed substantially concentrically with the spool shaft core, the coil can be substantially connected to the spool shaft core simply by mounting the circuit board on the reel body. Can be arranged concentrically. In addition, since the notch portion is provided in the circuit board, the drive portion of the level wind mechanism, the sound generation mechanism, and the like can be arranged in the notch portion so as to overlap the circuit board.

  A spool braking device for a dual-bearing reel according to a seventh aspect of the present invention is the device according to any one of the first to sixth aspects, wherein the spool control means is configured such that when the tension detected by the tension detecting means is equal to or less than a first predetermined value, The spool braking means is electrically controlled so as to brake the spool for a first predetermined time with a predetermined first braking force. In this case, when the spool is braked relatively strongly during a period of relatively high rotational speed immediately after casting, the tension is rapidly increased to prevent backlash and the device can fly stably. For this reason, it is possible to cast the device farther by preventing the backlash and stabilizing the device posture.

  According to the present invention, since the end face of the coil is disposed so as to face the side surface of the rotor, an increase in the radial dimension of the spool can be suppressed even if the spool braking means is provided outside the spool. In addition, since the coil having a smaller length along the axis than the winding diameter is used, even if the spool braking means is provided outside the spool, an increase in the length of the spool in the axis direction can be suppressed. For this reason, even if a spool braking means is provided outside the spool, it is possible to suppress an increase in the size of the reel.

  In FIG. 1, a dual-bearing reel employing an embodiment of the present invention is, for example, a medium-sized round reel capable of winding No. 5 fishing line about 300 m. The dual-bearing reel includes a reel body 1, a handle assembly 2 for rotating the spool disposed on the side of the reel body 1, and a star drag 3 disposed on the reel body 1 side of the handle assembly 2. Yes. This double-bearing reel does not have a level wind mechanism.

  A spool 12 is rotatably mounted on the reel body 1. The reel body 1 can be attached to the fishing rod RD via the rod mounting leg 4. As illustrated in FIGS. 1 and 2, the reel body 1 includes a frame 5 and first and second covers 6 and 7 that cover both sides of the frame 5. The frame 5 has a pair of left and right side plates 8 and 9 arranged at a predetermined interval and a plurality of connecting members 10a, 10b and 10c for connecting the side plates 8 and 9. A mechanism mounting plate 16 (FIG. 2) is mounted on the second cover 7. The mechanism mounting plate 16 is disposed in contact with the side plate 8, and a space for storing various mechanisms described later is formed between the mechanism mounting plate 16 and the second cover 7.

  The frame 5 is obtained by die casting, and the second cover 7 is obtained by press-molding a thin metal plate. Each of the pair of side plates 8 and 9 and the first cover 6 has a circular shape when viewed from the side, and the outer peripheral surface is machined using, for example, a lathe. As shown in FIG. 3, the first cover 6 has three openings 6a, 6b, and 6c for exposing a strength adjustment knob 43, a sounding on / off knob 82, and a spool lock knob 54, which will be described later, to the outside. Yes. The second cover 7 and the mechanism mounting plate 16 have a shape in which a part of a circle protrudes in the radial direction when viewed from the side. The second cover 7 also bulges outward in the axial direction around a mounting portion of a handle shaft 30 (described later). A spool 12 for bobbin winding is rotatably mounted in the frame 5. A clutch operation lever 17 is swingably mounted on the rear side surface of the second cover 7.

  The connecting members 10a to 10c are plate-like members formed integrally with the both side plates 8 and 9 in a shape along the outer peripheries of the both side plates 8 and 9. A pair of side plates 8 and 9 are connected at a location (FIG. 1). Thus, by forming the side plates 8 and 9 and the plurality of connecting members 10a to 10c integrally, even if a large load is applied to the reel body 1, deformation such as bending hardly occurs, and a decrease in winding efficiency is suppressed. Is done. The outer peripheral portions of the connecting members 10 a to 10 and the side plates 8 and 9 are integrated and machined in the same manner as the first cover 6.

  A saddle mounting leg 4 is fixed to the lower connecting member 10c. The heel mounting leg 4 is disposed along the center position between the side plates 8 and 9 of the frame 5. This center position is also the center position of the yarn winding portion of the spool 12.

  As shown in FIG. 1, the handle assembly 2 includes a crank arm 2a that is non-rotatably attached to the tip of the handle shaft 30, and a crank arm 2a that is rotatable about an axis orthogonal to one end of the crank arm 2a. And a handle handle 2b attached to the vehicle. The crank arm 2 a is bent halfway so that the handle handle 2 b side approaches the reel body 1.

  As shown in FIG. 2, the spool 12 is rotatably disposed between the pair of side plates 8 and 9. The spool 12 includes a bobbin trunk 12a and a pair of left and right flanges 12b and 12c integrally formed at both ends of the bobbin trunk 12a. A spool shaft 20 is fixed through the center of the spool 12.

  The spool shaft 20 is made of, for example, a nonmagnetic metal such as SUS304, and extends outward from the second cover 7 through the mechanism mounting plate 16. The spool shaft 20 is rotatably supported on the reel body 1 by a bearing 13 a mounted on the first cover 6 and a bearing 13 b mounted on the mechanism mounting plate 16. An engagement pin 29 is attached to the through portion of the mechanism mounting plate 16 of the spool shaft 20 so as to penetrate in the radial direction.

  In the space between the mechanism mounting plate 16 and the second cover 7, a gear mechanism 19 for transmitting torque from the handle assembly 2 to the spool 12, and provided in the middle of the gear mechanism 19, the handle assembly 2 is rotated. The clutch mechanism 21 for transmitting and shutting off, the clutch control mechanism 22 for turning the clutch mechanism 21 on and off, the drag mechanism 23 for braking the rotation in the spool feeding direction of the spool 12, and the resistance force when the spool 12 rotates A casting control mechanism 24 is provided.

  In addition, a spool lock mechanism that can be switched between a reverse rotation prohibition state that prohibits the reverse rotation of the spool 12 in the yarn feeding direction and a reverse rotation permission state that is permitted, regardless of the state of the clutch mechanism 21, outside the side plate 8. 26 and a spool sound generation mechanism 27 that can be switched between a sound generation enabled state and a sound generation disabled state when the spool 12 rotates. A spool braking mechanism 25 is disposed between the spool 12 and the first cover 6 to brake the spool 12 so that it can be electrically controlled during casting or the like.

  The gear mechanism 19 includes a handle shaft 30, a main gear 31 fixed to the handle shaft 30, and a cylindrical pinion gear 32 that meshes with the main gear 31. The handle shaft 30 is rotatably mounted on the mechanism mounting plate 16 and the second cover 7, and rotation (reverse rotation) in the yarn drawing direction is prohibited by the roller-type one-way clutch 89 and the claw-type one-way clutch 90. . The one-way clutch 89 is mounted between the second cover 7 and the handle shaft 30. The main gear 31 is rotatably mounted on the handle shaft 30 and is connected to the handle shaft 30 via the drag mechanism 23.

  The pinion gear 32 is a cylindrical member that extends inward from the outside of the side plate 9 and through which the spool shaft 20 passes, and is mounted on the spool shaft 20 so as to be movable in the axial direction. An engagement groove 32 a that engages with the engagement pin 29 is formed at the left end of the pinion gear 32 in FIG. 2. The meshing groove 32a and the engaging pin 29 constitute the clutch mechanism 21. A constricted portion 32b is formed at the intermediate portion, and a gear portion 32c that engages with the main gear 31 is formed at the right end portion.

  The clutch control mechanism 22 includes a clutch yoke 35 and a clutch operation lever 17 that engage with the constricted portion 32 b of the pinion gear 32 and move the pinion gear 32 along the direction of the spool shaft 20. The clutch yoke 35 moves the pinion gear 32 in the spool axis direction by swinging the clutch operating lever 17 to switch the clutch mechanism 21 between the clutch-on state and the clutch-off state. When the pinion gear 32 is moved along the spool shaft 20 and the engagement groove 32 a is engaged with the engagement pin 29, the rotational force is transmitted between the spool shaft 20 and the pinion gear 32. This state is a connected state (clutch on state). If the engagement between the engagement groove 32 a and the engagement pin 29 is disengaged, the rotational force is not transmitted between the spool shaft 20 and the pinion gear 32. This state is a disconnected state (clutch off state). In the clutch-off state, the spool 12 rotates freely. The clutch yoke 35 is biased by a biasing member (not shown) in a direction in which the meshing groove 32a and the engagement pin 29 are engaged, that is, in a clutch-on state. The clutch control mechanism 22 has a clutch return mechanism (not shown) that clutches the clutch mechanism 21 in conjunction with the rotation of the spool 12 in the yarn winding direction.

  The casting control mechanism 24 includes a plurality of friction plates 51 disposed so as to sandwich both ends of the spool shaft 20 and a braking cap 52 for adjusting the clamping force of the spool shaft 20 by the friction plates 51. The left friction plate 51 is mounted in the first cover 6.

  The spool lock mechanism 26 is a mechanism that can inhibit the reverse rotation of the spool 12 in the yarn feeding direction regardless of the state of the clutch mechanism 21 and can switch between the reverse rotation prohibited state and the reverse rotation permitted state. Since the spool 12 is completely locked when the spool lock mechanism 26 is in the reverse rotation prohibition state, it is convenient for cutting the fishing line when the device is rooted.

  As shown in FIG. 4, the spool lock mechanism 26 includes a ratchet wheel 50 that is non-rotatably mounted on the spool shaft 20 and a ratchet claw (not shown) that meshes with the ratchet wheel 50. As shown in FIG. 3, the ratchet pawl is unlocked away from the lock position (two-dot chain line in FIG. 3) that is engaged with the ratchet wheel 50 by the spool lock knob 54 exposed from the opening 6c of the first cover 6. Move to the position (solid line in FIG. 3).

  The spool sound generation mechanism 27 is a mechanism that can generate sound according to the rotation of the spool 12 and can switch between a soundable state and a soundless state. As shown in FIGS. 4 and 5, the spool sound generation mechanism 27 includes a first sound generation portion 70 that is non-rotatably attached to the spool shaft 20 and has an uneven portion 70 a on the outer periphery, and a second sound generation portion that contacts the first sound generation portion 70. Part 71.

  The first sounding portion 70 is non-rotatably attached to the spool shaft on the spool 12 side from the ratchet wheel 50. The first sounding portion 70 is a disk-shaped metal member formed by arranging a large number of gear tooth-shaped concave and convex portions 70 a on the outer peripheral surface at intervals in the circumferential direction.

  The second sounding portion 71 includes a swing shaft 73 that is movably mounted on the first cover 6 to the left and right, and a claw member 74 that is swingably mounted on the swing shaft 73 and has a tip that can contact the concave and convex portion 70a. And a biasing member 75 that biases the claw member 74 toward a neutral position in contact with the concave and convex portion 70a.

  The swing shaft 73 moves in a direction in which the claw member 74 is in contact with and away from the first sounding portion 70 so as to move between the sounding position where the tip contacts the uneven portion 70a and the separation position where the claw member 74 is separated from the uneven portion 70a. The first cover 6 is freely provided. A sounding on / off knob 82 is formed at the tip of the swing shaft 73. The sound generation on / off knob 82 is disposed so as to be exposed from the opening 6 b of the first cover 6, and the swing shaft 73 can be moved to two positions from the outside of the first cover 6.

  The claw member 74 is a metal member and is swingably attached to a tapered contact portion 74a that is formed at the tip and contacts the concavo-convex portion 70a and the tip of the swing support portion 81 of the swing shaft 73. Mounting portion 74b, and a constricted portion 74c disposed between the contact portion 74a and the mounting portion 74b. The claw member 74 is operated to move the swing shaft 73 between a sound generation position where the contact portion 74a contacts the uneven portion 70a indicated by a solid line in FIG. 5 and a separation position where the contact portion 74a is separated from the uneven portion 70a indicated by a two-dot chain line in FIG. To move.

  The urging member 75 is formed in a curved shape so that the constricted portion 74c of the claw member 74 is sandwiched from both sides of the fixing portion 75a fixed to the first cover 6 by the two screws 80, and the distal ends thereof are opposed to each other. This is a metal spring member having the spring portion 75b arranged in the same manner. The spring portion 75b is curved in a C shape, and when the claw member 74 is in the sound generation position, the open end of the tip is disposed to face the constricted portion 74c.

[Configuration of spool braking mechanism]
As shown in FIGS. 3 to 7, the spool braking mechanism 25 is released from the spool braking unit 40 (an example of spool braking means) 40 provided on the spool 12 and the reel body 1 and from the spool 12 during casting or the like. A rotation speed sensor (an example of tension detecting means) 41 for detecting the tension acting on the fishing line, and a spool control unit (spool) for electrically controlling the spool braking unit 40 by any of eight levels of braking pattern strength adjustment. An example of the control means) 42 and a strength adjustment knob 43 for selecting an eight-step braking pattern.

  The spool braking unit 40 is an electrically controllable unit that brakes the spool 12 by power generation. The spool braking unit 40 has a plurality of magnetic poles that are arranged side by side in the rotation direction and have a plurality of magnetic poles having different polarities, and rotates in conjunction with the spool 12, and an end surface is disposed at a position facing the side surface of the rotor 60. A plurality of coils 62 that are mounted on the reel body 1 and are connected in series at intervals in the circumferential direction and whose winding diameter is larger than the entire length, and switch elements 63 connected to both ends of the plurality of coils 62 connected in series are provided. Yes. The spool braking unit 40 brakes the spool 12 by turning on and off the current generated by the relative rotation between the rotor 60 and the coil 62 by the switch element 63. The braking force generated in the spool braking unit 40 increases in accordance with the length of the ON time of the switch element 63.

  The rotor 60 has six magnets 61 arranged in the rotation direction on the left flange portion 12b of the spool 12 and a magnet holding portion 28 that holds the six magnets at equal intervals in the circumferential direction. The six magnets 61 are arranged side by side in the circumferential direction and have different polarities. The magnet holding portion 28 is a ring-shaped synthetic resin member, and is integrally formed with the six magnets 61 by, for example, insert molding. The back surfaces of the magnet 61 and the magnet holding portion 28 are shaped to match the outer surface 12 d of the flange portion 12 b of the spool 12. A non-magnetic dish-shaped cap member 65 having a through hole 65a at the center is disposed between the magnet 61 and the magnet holding portion 28 and the outer surface 12d.

  The coil 62 is of a coreless type in order to prevent cogging and make the spool 12 rotate smoothly, and is not provided with a yoke. As shown in FIGS. 4 and 5, the coils 62 are arranged at five places on the circumference of 6 circles, and only one place is missing. Except for this missing portion, the coil 62 is fan-shaped around an axis parallel to the axis X of the spool shaft 20 so that the wound core wire is disposed in the magnetic field of the magnet 61 so as to face the magnet 61. The core wire is wound and arranged around the axial core X at intervals in the circumferential direction. As a result, the power generation efficiency can be increased and a high braking force can be obtained. The total length L (FIG. 4) in the direction along the axis X of the coil 62 is ¼ or less of the sector-shaped diagonal length D (FIG. 5) that is the maximum value of the winding diameter. The five coils 62 are connected in series, and both ends thereof are connected to the switch element 63. The coil 62 is disposed such that the distance from the outer surface 61a of the magnet 61 is substantially constant. For this reason, the clearance gap between the coil 62 and the rotating magnet 61 can be maintained constant. The five coils 62 are mounted on a circuit board 66 described later, and the surface of the coil 62 is covered with an insulating film such as a varnish.

  The switch element 63 has, for example, two FETs (field effect transistors) connected in parallel that can be controlled on and off at high speed. A series-connected coil 62 is connected to each drain terminal of the FET. The switch element 63 is mounted on the back surface of the circuit board 66 (the surface opposite to the surface facing the flange portion 12a).

  The rotational speed sensor 41 uses, for example, a reflective photoelectric sensor having a light projecting portion and a light receiving portion, and is arranged on the surface of the circuit board 66 facing the flange portion 12a of the spool 12 as shown in FIG. Has been. The rotation speed sensor 41 is a sensor unit in which a light projecting unit and a light receiving unit are integrally provided in a case. A reading pattern 67 that reflects light emitted from the photoelectric sensor is formed on an outer surface of one of the six magnets 61 by an appropriate method such as printing, sticking a sticker, or attaching a reflector. Yes. The rotational speed of the spool 12 is detected by a signal from the light receiving portion of the rotational speed sensor 41, and the tension acting on the fishing line is detected.

  The strength adjustment knob 43 is provided to adjust a braking pattern described later in eight levels. The strength adjustment knob 43 is rotatably attached to the first cover 6 and is exposed to the outside through the opening 6a.

  The circuit board 66 is a ring-shaped board in the form of a washer having a notch 66a having a circular opening at the center and a portion where the claw member 74 of the spool sound generation mechanism 27 is disposed along the radial direction. The inner surface of the first cover 6 is disposed substantially concentrically with the axis X. A plurality of control elements including a microcomputer and various ICs are mounted on the front and back surfaces of the circuit board 66. The circuit board 66 is fixed to the inner surface of the first cover 6 with, for example, four screws 80 and 81. Of these, the two screws 80 are also screws that fix the urging member 75 of the spool sound generating mechanism 27.

  As shown in FIG. 7, the control unit 55 includes a microcomputer 59 on which a CPU 55a, a RAM 55b, a ROM 55c, an I / O interface 55d, and the like are mounted and arranged on a circuit board 66. In the ROM 55c of the control unit 55, a control program is stored, and a braking pattern of 8 levels of braking force is stored.

  A rotation speed sensor 41 that detects the rotation speed of the spool 12 and a rotation position identification sensor 45 that detects the rotation position of the strength adjustment knob 43 are connected to the control unit 55. Further, the gate of each FET of the switch element 63 is connected to the control unit 55. The control unit 55 performs on / off control of the switch element 63 of the spool braking unit 40 with a pulse signal from each of the sensors 41 and 45, for example, with a PWM (pulse width modulation) signal having a period of 1/1000 seconds, according to a control program described later. Specifically, the control unit 55 performs on / off control of the switch element 63 with an eight-level braking force braking pattern in which the duty ratio D is changed with the elapsed casting time. The control unit 55 is supplied with power from the power storage element 57 as a power source. This electric power is also supplied to the rotational speed sensor 41 and the rotational position identification sensor 45.

  The rotational position identification sensor 45 is provided for reading the rotational position of the strength adjustment knob 43. The position identification sensor 45 is composed of, for example, a photoelectric sensor having a light projecting unit and a light receiving unit.

  The power storage element 57 as a power source uses, for example, an electrolytic capacitor and is connected to the rectifier circuit 58. The rectifier circuit 58 is connected to the switch element 63, has a rotor 60 and a coil 62, converts the alternating current from the spool braking unit 40 functioning as a generator into direct current, stabilizes the voltage, and 57. The rectifier circuit 58 and the storage element 57 are also mounted on the circuit board 66.

[Operation and operation of reel during actual fishing]
When performing casting, the clutch operating lever 17 is swung rearward to bring the clutch mechanism 21 into a clutch-off state. In this clutch-off state, the spool 12 is in a freely rotating state, and when casting is performed, fishing line is drawn out from the spool 12 vigorously due to the weight of the device. When the spool 12 is rotated by this casting, the magnet 61 rotates on the inner peripheral side of the coil 62, and when the switch element 63 is turned on, a current flows through the coil 62 and the spool 12 is braked. At the time of casting, the rotational speed of the spool 12 gradually increases, and when it exceeds the peak, it gradually decreases.

  When the device reaches the ground, the handle assembly 2 is rotated in the yarn winding direction to actuate a clutch return mechanism (not shown) or to swing the clutch operation lever 17 forward to bring the clutch mechanism 21 into the clutch-on state. Palm the body 1 and wait for it.

[Control operation of control unit]
Next, schematic brake control of the control unit 55 during casting will be described with reference to a graph showing a braking pattern and a change pattern.

  The spool braking mechanism 25 operates in any one of eight types of braking patterns shown in FIG. The braking pattern is selected with the strength adjustment knob 43. The braking pattern is a pattern in which the braking force (duty ratio of the switch element 63) changes with the braking time from the start of casting. The present inventors have found that when a large braking force is applied when the tension becomes equal to or lower than a predetermined value, the posture of the device (luer) is reversed before the peak of the rotational speed and the flight is stable.

  The following control is performed to fly the device in a stable posture by braking before the peak of the rotational speed. That is, in the first period at the beginning of casting, the mechanism is reversed by applying a strong braking force for a short time at the highest duty ratio Dn1 (n indicates a braking force step, an integer of 1 to 8) (first braking process). ). In the subsequent second period, the duty ratio Dn2 is changed so that the braking force gradually weakens and gradually brakes with a braking force that becomes constant in the middle (second braking process). In the final third period, the duty ratio Dn3 is changed so that the spool 12 is braked with a braking force that gradually decreases until the rotational speed decreases to the predetermined rotational speed (third braking process). The duty ratios Dn <b> 1 to Dn <b> 3 change in eight steps depending on the setting of the strength adjustment knob 43. In this embodiment, the duty ratio is shifted in eight steps. Therefore, the control unit 55 performs first to third braking processes for changing the duty ratio for turning on the switch element 63 in three stages according to the braking time.

  Next, a specific brake control operation of the control unit 55 will be described with reference to a control flowchart of FIG.

  Prior to casting, preliminary casting for charging the power storage element 57 is performed. As a result, the spool 12 rotates, electric power is stored in the electric storage element 57, and the control unit 55 is powered on. When the power is turned on, initial setting is performed in step S1. Here, various flags and variables are reset. In step S <b> 2, it is determined by the signal from the rotational position identification sensor 45 which step n of the strength of the braking force has been selected by the strength adjustment knob 43. In step S4, the selected braking pattern of the strong and weak stage n is read from the ROM 55c, and the braking pattern is set in the RAM 55b. Thereafter, the braking operation is performed with the changed braking pattern until the strength adjustment knob 43 is changed next. Further, the duty ratio D corresponding to the braking pattern is read from the RAM 55b in the control unit 55 in the subsequent control. In step S5, the rotation speed V of the spool 12 at the beginning of casting is detected by a pulse from the rotation speed sensor 41. In step S7, the tension F acting on the fishing line fed from the spool 12 is calculated.

  Here, the tension F can be obtained from the change rate (Δω / Δt) of the rotational speed of the spool 12 and the inertia moment J of the spool 12. If the rotational speed of the spool 12 changes at a certain point in time, the difference from the rotational speed in the case where the spool 12 is free to rotate alone without receiving the tension from the fishing line is the rotation generated by the tension from the fishing line. This is due to the driving force (torque). If the rate of change of the rotational speed at this time is (Δω / Δt), the driving torque T can be expressed by the following equation (1).

T = J × (Δω / Δt) (1)
If the driving torque T is obtained from the equation (1), the tension can be obtained from the radius (usually 15 to 20 mm) of the operating point of the fishing line.

  In step S8, whether or not the tension F calculated from the rate of change in rotational speed (Δω / Δt) and the moment of inertia J is equal to or less than a predetermined value Fs (for example, any value in the range of 0.5 to 1.5N). Judge. If it exceeds the predetermined value Fs, the process proceeds to step S9, the duty ratio D is set to 10, that is, the switch element 63 is controlled to be turned on by 10% of the cycle, and the process returns to step S2. As a result, the spool braking unit 40 slightly brakes the spool 12, but the spool braking unit 40 generates power, so that the spool control unit 42 operates stably.

  When the tension F becomes equal to or less than the predetermined value Fs, the process proceeds to step S10. In step S10, the timer T1 is started. The timer T1 is a timer that determines the processing time of the first braking process for braking with a strong braking force. In step S11, it is determined whether or not the timer T1 has expired. If the time is not up, the process proceeds to step S13, the first braking process is performed until the timer T1 is up, and the process returns to step S11. In this first braking process, the spool 12 is braked for a time T1 at a constant first duty ratio Dn1, as indicated by the left-downward hatching in FIG. This first duty ratio Dn1 is, for example, in the range of 50 to 100% duty (on-time is 50% to 100% of the entire period), preferably 70 to 90% duty. The time T1 is preferably in the range of 0.1 to 0.3 seconds. Braking in such a range makes it easier to brake the spool 12 before the peak of the rotational speed.

  The first duty ratio Dn1 shifts up and down depending on the level n of the braking force. In this embodiment, when the braking force is maximum (n = 1), the duty ratio D11 is the largest and then gradually decreases. In this way, when a strong braking force is applied for a short time according to the mechanism, the posture of the mechanism is reversed from the fishing line locking part, and the fishing line locking part is in front, and the mechanism flies. As a result, the posture of the device is stabilized and the device can fly further.

  On the other hand, when the timer T1 expires, after the timer T1 is reset, the process proceeds from step S11 to step S12. In step S12, it is determined whether or not the timer T2 has already been started. If the timer T2 has started, the process proceeds to step S17. If the timer T2 has not been started, the process proceeds to step S14 to start the timer T2. The timer T2 is a timer that determines the processing time of the second braking process.

  In step S17, it is determined whether or not the timer T2 has expired. If the time is not up, the process proceeds to step S18, and the second braking process is performed until the timer T2 is up. In this second braking process, as shown by the downward-sloping hatching in FIG. 8, the spool starts for a second predetermined time T2 with a duty ratio Dn2 that changes rapidly at the beginning, then gradually decreases and finally becomes a constant value. 12 is braked. The minimum value of the duty ratio Dn2 is preferably in the range of 30 to 70%, for example. The second predetermined time T2 is preferably between 0.3 and 2 seconds. When the timer T2 expires, the timer T2 is reset, and then the process proceeds from step S17 to step S21.

  In step S21, it is determined whether or not the speed V has become equal to or lower than the braking end speed Ve. When the speed V exceeds the braking end speed Ve, the process proceeds to step S22. In step S22, a third braking process is performed. As shown by the vertical stripe hatching in FIG. 8, the control is performed with the duty ratio Dn3 that changes with time similar to the second braking process in which the descending rate gradually decreases. When the speed V becomes equal to or lower than the braking end speed Ve, the process returns to step S2.

  Here, if braking is performed with a strong braking force before the peak of the rotational speed, the tension that is equal to or less than the first predetermined value Fs increases rapidly, preventing backlash and flying with a stable mechanism. For this reason, it is possible to cast the device farther by preventing the backlash and stabilizing the device posture.

  In addition, since the three braking processes are controlled with different duty ratios and braking times in accordance with the spool rotation speed at the beginning of casting, the spool is braked with different duty ratios and braking times depending on the spool rotation speed even with the same setting. Is done. For this reason, even if casting with different rotation speeds of the spool is performed, the adjustment operation of the braking force becomes unnecessary, and the burden on the angler for the adjustment operation of the braking force can be reduced.

  Furthermore, since the end surface of the coil 62 is disposed so as to face the side surface of the rotor 60, an increase in the radial dimension of the spool 12 can be suppressed even if the spool braking mechanism 25 is provided outside the spool 12. . Further, since the coil 62 having the overall length L smaller than the winding diameter D of the coil 62 is used, even if the spool braking mechanism 25 is provided outside the spool 12, an increase in the axial length of the spool 12 can be suppressed. For this reason, even if a spool 12 braking mechanism is provided outside the spool 12, an increase in the size of the reel can be suppressed.

[Other Embodiments]
(A) In the said embodiment, in order to improve electric power generation efficiency, it comprised with the core wire which wound the coil 62 in the fan shape, However, You may comprise the coil 62 with the core wire wound in cylindrical shape.

(B) In the above embodiment, the coil is a coreless type, but a core may be provided.
(C) In the above embodiment, the present invention has been described by taking a double-bearing reel having no level wind mechanism as an example, but the present invention can also be applied to a dual-bearing reel having a level wind mechanism. In this case, a cutout may be provided in the circuit board in order to avoid the screw shaft and guide shaft of the level wind mechanism.

  (D) In the above-described embodiment, an example in which the tension acting on the fishing line is detected as the casting state is illustrated, but the casting state is not limited to the tension. For example, the rotation speed of the spool may be detected as the casting state.

The perspective view of the double bearing reel which employ | adopted one Embodiment of this invention. FIG. The side view of the left side of a reel. The IV-IV cross-section enlarged partial view of FIG. VV sectional drawing of the state of FIG. 4 of the state which removed the spool. The side view of the reel of the state which hold | gripped the 1st cover. The control block diagram of a spool braking mechanism. The graph which shows typically the change of the duty ratio of the braking pattern in each braking process. The flowchart which shows the control operation of a spool control unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reel body 12 Spool 25 Spool brake mechanism 40 Spool brake unit 41 Rotation speed sensor 42 Spool control unit 43 Strength adjustment knob 55 Control part 59 Microcomputer 60 Rotor 61 Magnet 62 Coil 63 Switch element 66 Circuit board 66a Notch

Claims (7)

A spool brake device for a dual-bearing reel that is used for casting and brakes a spool that is rotatably mounted on a reel body,
A rotor that is arranged side by side in the rotational direction and has a plurality of magnetic poles having different polarities and that rotates in conjunction with the spool, and an end face is disposed at a position facing the side surface of the rotor, and spaced apart in the circumferential direction. A plurality of coils mounted on the reel body and connected in series, the winding diameter of which is larger than the length along the axis of the spool, and switch means connected to both ends of the plurality of coils connected in series; Spool braking means for braking;
A casting state detection means for detecting a casting state;
Spool control means for on / off controlling the switch element in accordance with the casting state detected by the casting state detection means;
A spool brake device for a dual-bearing reel provided.   2. The spool brake device for a dual-bearing reel according to claim 1, wherein the casting state detection unit includes a tension detection unit that detects a tension acting on a fishing line discharged from the spool during casting.   The plurality of coils are wound in a fan shape around an axis parallel to the axis of the spool, and are spaced apart in the circumferential direction around the axis, and the coil in the direction along the axis The spool braking device for a double-bearing reel according to claim 1 or 2, wherein the length is ¼ or less of the diagonal length of the sector which is the maximum value of the winding diameter.   4. The rotor according to claim 1, wherein the rotor includes a plurality of magnets that are fixed to a flange portion of the spool and that are alternately arranged in the rotation direction so as to be arranged in the rotation direction around the axis of the spool. The spool brake device for the dual-bearing reel according to item.   The spool control means includes a circuit board mounted on a surface of the reel body facing one end surface of the spool and having the plurality of coils attached thereto, and a plurality of control elements mounted on the circuit board. 5. A spool braking device for a double-bearing reel according to any one of 1 to 4.   The spool brake device for a dual-bearing reel according to claim 5, wherein the circuit board is a washer-shaped ring member having a notch formed along a radial direction and disposed substantially concentrically with the spool shaft core. .   The spool control means is configured to brake the spool for a first predetermined time with a predetermined first braking force when the tension detected by the tension detection means is equal to or less than a first predetermined value. The spool brake device for a dual-bearing reel according to any one of claims 1 to 6, wherein the spool brake device is electrically controlled.

Images