JP2009159850A - Spool brake device of double bearing reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spool brake device of a double bearing reel, which can sufficiently ensure a brake force acting on a spool. <P>SOLUTION: Since the first holding members 64 and the second holding member 65 are mounted on the first dent portion 61a and the second dent portion 61b whose outer peripheral portions are dented in the radial directions, respectively, in the spool brake mechanism 25, the outer peripheral surfaces 64c, 65c of the first holding members 64 and the second holding member 65 can be arranged on the insides only in the depths of the first dent portion 61a and the second dent portion 61b in comparison with a case that the first holding members 64 and the second holding member 65 are mounted on the outer peripheral surface 61c of a magnet 61. Thereby, a space between the outer peripheral side of the magnet 61 and the inner peripheral side of the coil 62 can be reduced as much as possible. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a spool braking device, and more particularly to a dual-bearing reel braking device that brakes a spool rotatably mounted on a reel body.

  A double-bearing reel, in particular, a bait casting reel that casts by attaching a device such as a device to the tip of a fishing line, is provided with a spool braking device that brakes the spool in order to prevent backlash during casting. In this type of spool braking device, conventionally, a mechanical spool braking device such as a centrifugal type using centrifugal force or a magnet type using eddy current generated by a magnet is used. In such a mechanical spool braking device, the braking force during casting cannot be freely controlled, and recently, a device capable of electrically controlling the braking force acting on the spool has been developed (for example, Patent Documents). 1).

A conventional electrically controlled double-bearing reel braking device has a power generation mechanism composed of a magnet and a coil between a spool and a reel body, and electrically controls it to adjust the braking force during casting. Yes. In this type of braking device, the magnet provided on the spool, the coil provided on the reel body, the switch means connected to both ends of the coil, and the power generated in the coil by the relative rotation of the coil and magnet are switched. And a microcomputer that performs switching control by means to brake the spool. The magnet is attached to the spool shaft so as to be integrally rotatable, rotates in conjunction with the spool, and has a plurality of magnetic poles in the rotation direction. A bottomed cylindrical holding member is attached to each end of the magnet. The bottomed cylindrical holding member holds the magnet integrally so that a plurality of magnets are not separated. It is possible to restrict the movement outward in the axial direction by centrifugal force.
JP 2004-208630 A

  In the conventional spool braking device, a bottomed cylindrical holding member is attached to each end of the magnet, and specifically, the cylindrical portion of the holding member is fitted to the outer peripheral side of both ends of the magnet. Are arranged to match. Thus, when the cylindrical portion of the holding member is disposed so as to fit on the outer peripheral side of both end portions of the magnet, the outer peripheral side of the magnet and the inner peripheral side of the coil are equal to the thickness of the cylindrical portion of the holding member. It is necessary to ensure a gap between the two. When the gap between the outer periphery side of the magnet and the inner periphery side of the coil is increased in this way, the electric power generated in the coil decreases due to the relative rotation between the coil and the magnet, and the braking force acting on the spool cannot be sufficiently maintained. There is a fear.

  An object of the present invention is to sufficiently secure a braking force acting on a spool in a spool braking device for a dual-bearing reel.

  A dual-bearing reel spool braking device according to a first aspect of the present invention is a dual-bearing reel braking device that brakes a spool that is rotatably mounted on a reel body, and is mounted on a rotating shaft of the spool so as to rotate integrally with the spool. A magnet having a plurality of magnetic poles in the rotational direction and having a first concave portion and a second concave portion in which the outer peripheral portions of both end portions are recessed in the radial direction, and the first concave portion and the second concave portion are in contact with each other. A first holding member and a second holding member that sandwich both ends of the magnet, a plurality of coils that are attached to the reel body and connected in series around the magnet with a space in the circumferential direction, and a plurality of coils The switch means connected to both ends of the magnet, and a switch that controls the power generated in the coil by the relative rotation of the coil and the magnet by the switch means to brake the spool by a control program. Black and a computer.

  In this spool braking device, a magnet having a first recess and a second recess whose outer peripheral portions at both ends are recessed in the radial direction, and the magnet are mounted so as to come into contact with the first recess and the second recess, and sandwich both ends of the magnet. It mainly includes a dish-shaped first holding member and a second holding member. Here, since the first holding member and the second holding member are attached to the first concave portion and the second concave portion whose outer peripheral portions are recessed in the radial direction, the first holding member and the second holding member are attached to the outer peripheral portion of the magnet. Compared to the case, the outer peripheral surfaces of the first holding member and the second holding member can be arranged on the inner side by the depth of the first recess and the second recess. Therefore, the gap between the outer peripheral side of the magnet and the inner peripheral side of the coil can be reduced, so that the electric power generated in the coil by the relative rotation of the coil and the magnet can be maintained. Sufficient power can be secured.

  The spool braking device according to a second aspect of the present invention is the spool braking device according to the first aspect, wherein the first recess and the second recess are each tapered so as to reduce in diameter toward both ends. In this case, since the first concave portion and the second concave portion are formed in a tapered shape, for example, the first holding member and the second holding member are formed to be bent along the tapered portions of the first concave portion and the second concave portion. Thereby, it becomes easy to arrange the outer peripheral surfaces of the first holding member and the second holding member inside the outer peripheral surface of the magnet. In addition, when C-chamfered portions for preventing chipping are formed at both corners of the magnet, the C-chamfered portion can also serve as a tapered portion for the first recess and the second recess.

  The spool braking device according to a third aspect is the spool braking device according to the second aspect, wherein the first holding member and the second holding member are tapered caps whose outer peripheral portions have outer shapes along the outer shapes of the first concave portion and the second concave portion. It is a member. In this case, since the first holding member and the second holding member are tapered cap members, by matching the tapered portions of the first holding member and the second holding member with the tapered portions of the first concave portion and the second concave portion, The first holding member and the second holding member can be easily attached.

  The spool braking device according to a fourth aspect is the spool braking device according to any one of the first to third aspects, wherein the first holding member and the second holding member have an outer peripheral surface that is the same as the outer peripheral surface of the magnet or a radial direction from the outer peripheral surface of the magnet. It mounts | wears with a 1st recessed part and a 2nd recessed part so that it may be located inside. In this case, since the outer peripheral surfaces of the first holding member and the second holding member are arranged so as to be located inside including the outer peripheral surface of the magnet, a gap between the outer peripheral side of the magnet and the inner peripheral side of the coil is formed. Can be surely small.

  A spool brake device according to a fifth aspect of the present invention is the spool brake device according to any one of the first to fourth aspects, wherein the first holding member and the second holding member are non-magnetic members. In this case, even if the first holding member and the second holding member are disposed between the coil and the magnet, the first holding member and the second holding member are less likely to exert a magnetic influence on the coil and the magnet.

  A spool braking device according to a sixth aspect of the present invention is the spool braking device according to any one of the first to fifth aspects, wherein the magnets are a plurality of magnets arranged in the rotational direction and having a plurality of magnetic poles having different polarities. In this case, since the magnet is composed of a plurality of magnets, by attaching the first holding member and the second holding member to both ends of the plurality of magnets, the plurality of magnets are integrally held so as not to be separated. can do.

  A spool braking device according to a seventh aspect of the present invention is the spool braking device according to any one of the first to sixth aspects, further comprising a circuit board mounted on the reel body and having a microcomputer and a plurality of coils attached thereto. In this case, since the microcomputer and the plurality of coils are integrally attached to the circuit board, it becomes easy to attach and detach the unit of the circuit board to which the microcomputer and the plurality of coils are attached.

  According to the present invention, in the spool braking device for a dual-bearing reel, the outer peripheral portions of both end portions are in contact with the first concave portion and the second concave portion, respectively, with the magnet having the first concave portion and the second concave portion recessed in the radial direction. Since the plate-like first holding member and the second holding member that sandwich the both end portions of the magnet are mounted, a braking force acting on the spool can be sufficiently secured.

[Reel configuration]
The double-bearing reel according to the embodiment of the present invention is a low-profile double-bearing reel for bait casting as shown in FIGS. 1 and 2. The reel includes a reel body 1, a spool rotation handle 2 disposed on the side of the reel body 1, and a drag drag adjusting star drag 3 disposed on the reel body 1 side of the handle 2.

  The handle 2 is of a double handle type having an arm portion 2a and a handle 2b rotatably attached to both ends of the arm portion 2a, and the arm portion 2a has a handle shaft 30 as shown in FIG. It is attached to the tip so as not to rotate, and is fastened to the handle shaft 30 by a nut 28.

  The reel body 1 is a light metal member such as a magnesium alloy, for example, and has a frame 5 and a first side cover 6 and a second side cover 7 mounted on both sides of the frame 5. A spool 12 for winding a thread is rotatably mounted inside the reel body 1 via a spool shaft 20 (see FIG. 2).

  As shown in FIG. 2, the frame 5 has a spool 12, a clutch lever 17 (see FIG. 1) that serves as a thumb rest for summing, and a level wind for winding the fishing line uniformly in the spool 12. A mechanism 18 is arranged. Further, between the frame 5 and the second side cover 7, a gear mechanism 19 for transmitting the rotational force from the handle 2 to the spool 12 and the level wind mechanism 18, and a clutch for connecting / disconnecting the spool 12 and the handle 2. A mechanism 21; a clutch control mechanism 22 for controlling the clutch mechanism 21 according to the operation of the clutch lever 17; a drag mechanism 23 for braking the spool 12; and a casting for adjusting a resistance force when the spool 12 rotates. A control mechanism 24 is arranged. An electrically controlled spool braking mechanism 25 for suppressing backlash during casting is disposed between the frame 5 and the first side cover 6.

  The frame 5 includes a pair of first side plates 8 and second side plates 9 disposed so as to face each other with a predetermined interval, and a plurality of the first side plates 8 and the second side plates 9 connected together. And a connecting portion 10a. A circular opening 8 a is formed in the first side plate 8. An annular member 13 constituting the reel body 1 is detachably screwed to the opening 8a. The annular member 13 is formed with a positioning recess 13c that is partially cut out on the outer peripheral portion. The annular member 13 is positioned at a predetermined position by being engaged with a positioning projection of the first side plate 8 (not shown). it can. The annular member 13 is a member made of aluminum alloy formed by die casting, and an anodized film formed by anodizing treatment is formed on the surface thereof. A support member 81 to be described later is detachably fixed to the inner peripheral portion of the annular member 13, and a bearing storage portion in which a bearing 26 a that supports one end of the spool 12 is stored on the inner peripheral side of the support member 81. 14 is provided.

  As shown in FIG. 2, the spool 12 has a dish-like flange portion 12a on both sides, and a cylindrical bobbin trunk 12b between both flange portions 12a. The outer peripheral surface of the flange portion 12a on the left side of FIG. 2 is disposed with a slight gap on the inner peripheral side of the opening 8a in order to prevent the yarn from being caught. The spool 12 is fixed to the spool shaft 20 penetrating the inner peripheral side of the bobbin trunk 12b so as not to rotate by, for example, serration coupling.

  The spool shaft 20 is made of a nonmagnetic metal such as SUS304 and extends through the second side plate 9 to the outside of the second side cover 7. The extended one end is rotatably supported by a bearing 26b on a boss portion 7b attached to the second side cover 7. The other end of the spool shaft 20 is rotatably supported by a bearing 26b. A large diameter portion 20a is formed at the center of the spool shaft 20, and small diameter portions 20b and 20c supported by bearings 26a and 26b are formed at both ends. The bearings 26a and 26b are rolling bearings in which the rolling members, the inner ring and the outer ring are made of SUS404C and the surface thereof is modified to improve the corrosion resistance.

  Further, between the small diameter portion 20c and the large diameter portion 20a on the left side of FIG. 1, there is formed a magnet mounting portion 20d for mounting a magnet 61, which will be described later, having an intermediate outer diameter between the two. For example, a magnet holding portion 27 made of a magnetic material obtained by electroless nickel plating on the surface of an iron material such as SUM (extrusion / cutting) is fixed to the magnet mounting portion 20d in a non-rotatable manner by, for example, serration coupling. The magnet holding part 27 is a quadrangular prism-shaped member having a square cross section and a through hole 27a through which the magnet mounting part 20d passes. The fixing method of the magnet holding part 27 is not limited to serration coupling, and various coupling methods such as key coupling and spline coupling can be used.

  A right end of the large-diameter portion 20a of the spool shaft 20 is disposed in a penetrating portion of the second side plate 9, and an engagement pin 29 constituting the clutch mechanism 21 is fixed thereto. The engagement pin 29 penetrates the large diameter portion 20a along the diameter, and both ends thereof protrude in the radial direction.

  As shown in FIG. 1, the clutch lever 17 is disposed behind the spool 12 at the rear portion between the pair of the first side plate 8 and the second side plate 9. The clutch lever 17 is connected to the clutch control mechanism 22 and slides up and down between the first side plate 8 and the second side plate 9 to switch the clutch mechanism 21 between a connected state and a disconnected state.

  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 second side plate 9 and the second side cover 7, and rotation (reverse rotation) in the yarn feeding direction is prohibited by the roller-type one-way clutch 86 and the claw-type one-way clutch 87. Yes. The one-way clutch 86 is mounted between the second side 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 second 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. Further, the left end of FIG. 2 of the pinion gear 32 is supported by the second side plate 9 by a bearing 33 so as to be rotatable and axially movable. 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 has a clutch yoke 35 that moves along the direction of the spool shaft 20. 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 bearing housing portion 14.

[Configuration of spool braking mechanism]
As shown in FIG. 5, the spool braking mechanism 25 includes a spool braking unit 40 provided on the spool 12 and the reel body 1, a rotational speed sensor 41 for detecting tension acting on the fishing line, and a spool braking unit 40. Has a spool control unit 42 for electrically controlling one of the four braking modes, and a mode knob 43 for selecting the four braking modes.

  The spool braking unit 40 is an electrically controllable unit that brakes the spool 12 by power generation. The spool braking unit 40 includes a rotor 60 including a plurality of (for example, four) magnets 61 arranged side by side in the rotation direction on the spool shaft 20, and a plurality of units connected in series so as to face the outer peripheral side of the rotor 60. (For example, four) coils 62 and a switch element 63 to which both ends of a plurality of coils 62 connected in series are connected. The spool braking unit 40 brakes the spool 12 by changing the duty ratio by turning on and off the current generated by the relative rotation of the magnet 61 and the coil 62 by the switch element 63. The braking force generated by the spool braking unit 40 becomes stronger as the ON time of the switch element 63 is longer (as the duty ratio is larger).

  The four magnets 61 of the rotor 60 are arranged side by side in the circumferential direction and have different polarities. The magnet 61 is a member having a length substantially equal to that of the magnet holding portion 27, the outer side surface is a surface having an arcuate cross section, and the inner side surface is a flat surface. The inner surface is disposed in contact with the outer peripheral surface of the magnet holding portion 27 of the spool shaft 20.

  As shown in FIG. 2, at the position facing the magnet 61 on the inner peripheral surface of the bobbin trunk 12b, for example, it is made of a magnetic material obtained by electroless nickel plating on the surface of an iron material such as SUM (extrusion / cutting). A sleeve 68 is attached. The sleeve 68 is fixed to the inner peripheral surface of the bobbin trunk 12b by appropriate fixing means such as press fitting or adhesion. When such a magnetic sleeve 68 is arranged so as to face the magnet 61, the magnetic flux from the magnet 61 concentrates and passes through the coil 62, thereby improving the power generation and braking efficiency.

  As shown in FIGS. 3 and 4, both end portions of the four magnets 61 of the rotor 60 are clamped by a dish-shaped first holding member 64 and second holding member 65 so as not to move in the axial direction. The first holding member 64 and the second holding member 65 integrally hold the four magnets 61 so as not to be separated, and restrict the magnets 61 from moving outward in the axial direction by centrifugal force. be able to.

  Further, as shown in FIG. 3, the four magnets 61 respectively have a first recess 61 a and a second recess 61 b in which outer peripheral portions at both ends are recessed in the radial direction. The first concave portion 61a and the second concave portion 61b are each formed in a tapered shape that decreases in diameter toward both end sides. Here, since the first recess 61a and the second recess 61b are formed in a tapered shape, the first holding member 64 and the second holding member 65 can be easily mounted, and the C-chamfered portion for preventing the magnet 61 from being chipped. It can also be used as a function.

  As shown in FIG. 3, the first holding member 64 and the second holding member 65 are tapered cap members in which the outer shape of the inner peripheral portion is aligned with the outer shapes of the first recess 61 a and the second recess 61 b. As shown in FIG. 4, the first holding member 64 and the second holding member 65 are cap members having the same shape and arranged so that the openings face each other. The first holding member 64 and the second holding member 65 are non-magnetic members and are less likely to affect the magnetic flux at both ends of the magnet 61 on the side where the coil 62 is not disposed.

  The first holding member 64 and the second holding member 65 (only the first holding member 64 is illustrated) are disk parts 64a and 65a (circles) attached to the end of the magnet 61 as shown in an enlarged view in FIG. Only the plate portion 64a is shown), and contact portions 64b and 65b (contacts) which are bent from the outer peripheral portions of the disc portions 64a and 65a toward the end portion side of the magnet 61 and contact along the first concave portion 61a and the second concave portion 61b. Only the portion 64b is shown). The end portions of the contact portions 64b and 65b are chamfered and have a smooth outer shape that is thick in the axial direction. The first holding member 64 and the second holding member 65 are arranged so that the outer peripheral surfaces 64c and 65c (only the outer peripheral surface 64c is shown) are positioned so as to be substantially the same as the outer peripheral surface 61c of the magnet 61. The second recess 61b is attached.

The coil 62 is of a coreless type in order to prevent cogging and make the spool 12 rotate smoothly. Furthermore, no yoke is provided. The coil 62 is wound in a substantially rectangular shape so that the wound core wire faces the magnet 61 and is disposed in the magnetic field of the magnet 61. The four coils 62 are connected in series, and both ends thereof are connected to the switch element 63. The coil 62 is formed by being curved along the rotation direction of the spool 12 in a substantially concentric arc shape with respect to the spool axis so that the distance from the outer surface 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 coil 62 is attached to a circuit board 70 to be described later. As shown in FIG. 5, the switch element 63 has, for example, two FETs 63a (field effect transistors) connected in parallel that can be controlled on and off at high speed. A coil 62 connected in series is connected to each drain terminal of the FET 63a. This switch element 63 is also mounted on the circuit board 70.

  The rotation speed sensor 41 uses, for example, a light projecting / receiving photoelectric switch having a light projecting unit and a light receiving unit. On the outer surface of the flange portion 12a of the spool 12 facing the circuit board 70, a detection cylinder portion 12c having a plurality of slits arranged at intervals in the rotation direction is integrally formed. The light projecting part and the light receiving part are arranged to face each other with the detection cylinder part 12c interposed therebetween, and the rotational speed of the spool 12 is detected by the light passing through the slit.

  The mode knob 43 is provided for selecting one of four braking modes. The four braking modes are braking modes in which the first braking force and the second braking force are different. The L mode (long throw mode), the M mode (medium distance mode), the A mode (all round mode), and W There are four modes (window mode).

  Here, the L mode is a long distance mode in which a fishing line with a low specific gravity is used and a heavy lure with a low air resistance such as a spoon, a metal jig, and a vibration is used under a favorable wind condition. It is a braking mode that takes into account the energy immediately after casting to the maximum, raises the maximum number of revolutions as much as possible, and further increases the flight distance by making most of the middle and later free, and the first braking force is set to the smallest ing.

  The M mode is a braking mode that is set so that a long throw can be comfortably performed with a device (plug) having a low air resistance, such as a center-of-gravity plug, pencil bait, and vibration. While suppressing overrun immediately after casting, it has been set so that it can extend the distance without causing backlash at the last minute by correcting well after the middle stage. When using a polyamide resin fishing line having a small specific gravity, it is preferable to set this mode as a reference.

  The A mode is a brake setting that uses the energy immediately after casting as much as possible and emphasizes the latter half of the growth. It can be used for almighty in most situations, regardless of the type of fishing line, mechanism, or wind direction. In particular, when a fluorocarbon fishing line having a high specific gravity is used, it is preferable to set this mode as a reference.

  The W mode is a mode in which the flight distance is increased by suppressing backlash as much as possible even in a situation where the flight distance of the device falls in a complete headwind, and the second braking force is set to be the largest. It is set for optimal use when throwing a fixed center of gravity minnow or flat-side crank toward the wind that is easy to rotate and slow down during flight. Also, even light casting such as pitching and skipping is set to prevent backlash firmly from low rotation.

  As shown in FIG. 4, the mode knob 43 is provided on the first side cover 6 so as to be rotatable and to be positioned at four rotational phases according to the braking mode. The mode knob 43 is provided with a magnet (not shown). As shown in FIG. 10, the circuit board 70 is provided with a mode knob position sensor 45 composed of two Hall elements arranged at an interval in a region where the magnet rotates. The mode knob position sensor 45 changes the ON / OFF of the two Hall elements due to the passage of the magnet, specifically, both on, one on the other off, one off the other on, both off, The rotational phase of the knob is detected, and one of the four braking modes is set according to the rotational phase.

  As shown in FIGS. 4 and 11, the mode knob 43 includes a knob portion 43a that is a dial for rotating to select four braking modes, and a knob on which the knob portion 43a is rotatably supported. A main body 43b, a magnet mounting base 43c for attaching a magnet (not shown) fixed to the tip of the knob portion 43a, and a magnet attachment formed on the back side of the knob main body 43b and swinging in conjunction with the rotation of the knob portion 43a. In order to restrict the swing of the base 43c, a wall 43d, which is a step that the side end of the magnet mounting base 43c hits, and a disc-like shape having four recesses disposed on the opposite side of the knob 43a of the knob main body 43b. It has a sounding disc 43e, and a sounding member 43f composed of a pin member and a spring member that abuts on a recess of the sounding disc 43e and produces sound. Here, the wall 43d that restricts the swinging of the magnet mount 43c is provided in the knob main body 43b. Therefore, when a wall is provided at the tip of the knob 43a as in the prior art and a sounding mechanism is incorporated in this part. It is possible to suppress the rattling that occurs.

  The spool control unit 42 includes a circuit board 70 mounted on a surface of the support member 81 facing the flange portion 12 a of the spool 12, and a control unit 55 mounted on the circuit board 70.

  The circuit board 70 is a washer-shaped ring-shaped board whose center is opened in a circular shape, and is arranged substantially concentrically with the spool shaft 20 on the outer peripheral side of the bearing housing portion 14. The circuit board 70 is attached to the support member 81 so as to be relatively rotatable. The circuit board 70 is positioned so as to be arranged at a predetermined phase with respect to the opening 8a. Thereby, even if the support member 81 is rotated with respect to the annular member 13 fixed to the opening 8a and attached / detached, the circuit board 70 is arranged in a constant phase.

  Here, since the circuit board 70 is mounted on the surface of the support member 81 facing the flange portion 12a of the spool 12, the coil 62 disposed around the rotor 60 can be directly attached to the circuit board 70. For this reason, the lead wire which connects the coil 62 and the circuit board 70 becomes unnecessary, and the insulation defect of the coil 62 and the circuit board 70 can be reduced. In addition, since the coil 62 is attached to the circuit board 70 attached to the support member 81, the coil 62 is attached to the support member 81 simply by attaching the circuit board 70 to the support member 81. For this reason, the spool braking mechanism 25 can be easily assembled. Furthermore, since the circuit board 70 is mounted on the spool shaft portion so as to be relatively rotatable and is positioned at a predetermined phase with respect to the opening 8a, the phase between the circuit board 70 and the reel body 1 does not change. For this reason, even if a magnet is provided on the mode knob 43 attached to the first side cover 6 that opens and closes and a Hall element is provided on the circuit board 70, the Hall element can always detect the magnet in the same positional relationship.

  The control unit 55 is constituted by a microcomputer on which, for example, a CPU 55a, a RAM 55b, a ROM 55c, an I / O interface 55d, and the like are mounted. The ROM 55c of the control unit 55 stores a control program and stores data such as basic braking force, corrected braking force, and timer over two braking processes according to four control modes. In addition, set values such as a reference tension and a starting tension for each control mode are also stored. The control unit 55 is connected to a rotation speed sensor 41 and a mode knob position sensor 45 that detects the rotation position of the mode knob 43. Further, the gate of each FET 63 a 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 by, for example, a PWM (pulse width modulation) signal having a period of 1/1000 second, based on the input from the sensors 41 and 56 and the control program. Specifically, the control unit 55 performs on / off control of the switch element 63 with a duty ratio D that decreases in accordance with the rotation speed in the selected braking mode. 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 rotation speed sensor 41 and the knob position detection sensor 56.

  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 an alternating current from the spool braking unit 40 that functions as a generator into a direct current, stabilizes the voltage, and stores the power element 57. To supply.

  The rectifier circuit 58 and the power storage element 57 are also mounted on the circuit board 70. Each part including the coil 62 mounted on the circuit board 70 is covered with an insulating coating 90 made of a synthetic resin insulator formed by a hot melt molding method. The insulating coating 90 is formed in a cylindrical shape with a hook, and covers the coil 62, the circuit board 70, and the electrical components mounted on the circuit board 70. However, the light projecting / receiving portion of the rotation speed sensor 41 is exposed from the insulating coating 90.

  The components of the dual-bearing reel necessary for detachably attaching the spool braking mechanism 25 to the reel body 1 will be described.

  As shown in FIGS. 3, 4, and 6, the dual-bearing reel to which the spool braking mechanism 25 is attached is a cylindrical portion that is attached to the inner peripheral portion of the annular member 13 that is fixed to the opening 8 a of the first side plate 8. 81a and a support member 81 having a rotation support portion 81b provided inside the cylindrical portion 81a and supporting the end of the spool shaft 20, and a circuit board 70 and a circuit mounted on the inside of the cylindrical portion 81a so as to be relatively rotatable. The substrate assembly 80 in which the electrical component mounted on the substrate 70, the coil 62, the insert member 84, and the insulating coating 90 are integrated into a unit, and between the inside of the cylindrical portion 81a and the outside of the substrate assembly 80. Is attached to the inner peripheral portion of the opening 8a of the first side plate 8 so as not to rotate relative to the inner peripheral portion. Female thread 13a and An annular member 13 which is one of the components of the reel body 1 formed with the rotation stopper recess 13b, and a rotation stopper projection 82c that engages with the rotation stopper recess 13b is provided. It further includes a substrate fixing plate 82 which is a detent member for stopping. Although not shown, a sheet member for concealing the printing surface of the substrate assembly 80 is attached to the surface of the substrate assembly 80 that faces the support member 81.

  As shown in FIGS. 3, 4, and 6, the support member 81 includes a cylindrical portion 81 a that is attached to the inner peripheral portion of the annular member 13 that is fixed to the opening 8 a of the first side plate 8, and the cylindrical portion 81 a. And a rotation support portion 81 b that supports the end of the spool shaft 20. A groove portion 81d formed in an annular shape along the circumferential direction is formed in the inner peripheral portion of the cylindrical portion 81a, and a retaining member 83 made of a C-ring attached to the outer periphery of the substrate assembly 80 is provided in the groove portion 81d. It is mounted in a state where it is pressed against. Here, since the retaining member 83 made of a C-ring is mounted in a state of being pressed against the outer peripheral portion of the substrate assembly 80 and the groove portion 81d, the substrate assembly 80 moves in the axial direction from the support member 81. In addition to being regulated, the substrate assembly 80 is in a state of being rotatable relative to the support member 81. Further, as shown in FIGS. 4 and 6, a male screw portion 81 c is formed on the outer peripheral portion of the cylindrical portion 81 a, and the male screw portion 81 c is formed on the inner peripheral portion of the annular member 13. The support member 81 can be fixed to the annular member 13 by being screwed to 13a (see FIGS. 4, 6 and 9). Since the annular member 13 is fixed to the inner peripheral portion of the opening 8a of the first side plate 8 by three bolts (not shown) so as not to rotate relative to each other, the support member 81 therefore has an inner periphery of the opening 8a of the first side plate 8. It is fixed to the side so that it cannot rotate relatively.

  As shown in FIGS. 3, 4 and 6, the substrate fixing plate 82 is a plate-like member fixed to the substrate assembly 80 so as to insert the coil 62, and is spaced 3 toward the plate surface side. It has the 2nd through-hole 82a formed in the location. Here, the board fixing plate 82 is fixed to the board assembly 80 so as not to be relatively movable by screwing a fixing member 85 made of three bolts to the insert member 84 of the board assembly 80 in the three second through holes 82a. is doing. The outer shape of the substrate fixing plate 82 is larger than the outer shape of the substrate assembly 80. When the substrate assembly 80 is mounted on the support member 81, the substrate fixing plate 82 has a larger outer shape. Can be prevented from coming off in the direction opposite to the mounting side of the support member 81. The substrate fixing plate 82 is a plate-like member that prevents the substrate assembly 80 from rotating with respect to the annular member 13, and includes a rotation-preventing protrusion 82 c that engages with the rotation-preventing recess 13 b of the annular member 13. Yes. As shown in FIGS. 7 and 8, the anti-rotation protrusion 82 c is a locking piece in which a part of the outer peripheral portion is bent at a substantially right angle toward the annular member 13 and protrudes. As shown in FIG. 9, the rotation stopper recess 13 b is a locking groove formed by cutting out a part of the female screw portion 13 a on the inner peripheral portion of the annular member 13. Here, the substrate fixing plate 82 and the annular member 13 are prevented from rotating by engaging the rotation preventing projection 82c of the substrate fixing plate 82 with the rotation preventing recess 13b of the annular member 13, that is, the substrate fixing plate 82 is fixed. The substrate assembly 80 and the first side plate 8 to which the annular member 13 is fixed are prevented from rotating.

[Removal operation of spool braking mechanism]
In order to attach such a spool braking mechanism 25 to the reel body 1, first, the annular member 13 is screwed and fixed to the opening 8 a of the first side plate 8 so as not to be relatively movable. Next, the board fixing plate 82 is screwed to the board assembly 80 by the fixing member 85, the board assembly 80 to which the board fixing plate 82 is fixed is attached to the support member 81, and the retaining member 83 made of a C ring is attached. By interposing between the substrate assembly 80 and the support member 81, the substrate assembly 80 and the support member 81 are fixed so as to be relatively rotatable and not movable in the axial direction. Then, in the state where the substrate assembly 80, the support member 81, the substrate fixing plate 82, and the retaining member 83 are integrated, the rotation preventing projection 82c of the substrate fixing plate 82 is engaged with the rotation preventing recess 13b of the annular member 13. The board assembly 80, the support member 81, the board fixing plate 82, and the retaining member 83 are integrated by screwing the male screw part 81c on the outer peripheral part of the support member 81 into the female screw part 13a on the inner peripheral part of the annular member 13. The unit thus formed is attached to the annular member 13, that is, the inner peripheral side of the opening 8 a of the first side plate 8.

  Here, the spool braking mechanism 25 is connected to the reel body 1 by screwing a unit in which the board assembly 80, the support member 81, the board fixing plate 82 and the retaining member 83 are integrated with the annular member 13 of the reel body 1. Can be attached to. Further, the spool braking mechanism 25 can be removed from the reel body 1 by rotating the unit in which the board assembly 80, the support member 81, the board fixing plate 82 and the retaining member 83 are integrally rotated.

[Operation and operation of reel during actual fishing]
When casting, the clutch lever 17 is pressed downward 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, the 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. During casting, the rotational speed of the spool 12 gradually increases, and when it exceeds the peak, it gradually decelerates.

  When the device reaches the ground, the handle 2 is rotated in the yarn winding direction, the clutch mechanism 21 is brought into the clutch-on state by a clutch return mechanism (not shown), the reel body 1 is palmed, and waiting is made.

  In such a spool braking mechanism 25, the first holding member 64 and the second holding member 65 are mounted in the first concave portion 61a and the second concave portion 61b whose outer peripheral portions are recessed in the radial direction. Compared with the case where the second holding member 65 is mounted on the outer peripheral surface 61c of the magnet 61, the outer peripheral surfaces of the first holding member 64 and the second holding member 65 by the depth of the first concave portion 61a and the second concave portion 61b. Since 64c and 65c can be arrange | positioned inside, the clearance gap between the outer peripheral side of the magnet 61 and the inner peripheral side of the coil 62 can be made as small as possible. Therefore, since the electric power generated in the coil 62 by the relative rotation between the coil 62 and the magnet 61 can be maintained, a sufficient braking force acting on the spool 12 can be ensured.

[Other Embodiments]
(A) In the above embodiment, a bayocast low profile double-bearing reel has been described as an example, but a round double-bearing reel may be used.

  (B) In the above embodiment, the outer peripheral surfaces 64c and 65c of the first holding member 64 and the second holding member 65 are substantially the same as the outer peripheral surface 61c of the magnet 61, but as shown in FIG. 64c and 65c may be located radially inside the outer peripheral surface 61c of the magnet 61.

  (C) In the above-described embodiment, the contact portions 64b and 65b have a smooth outer shape having a thickness in the axial direction, but the thickness of the disk portions 64a and 65a is maintained as shown in FIG. You may make it bend | fold toward the edge part side of the magnet 61. FIG.

  (D) In the above embodiment, the contact portions 64b and 65b are formed so as to be in contact with each other along the first recess 61a and the second recess 61b. However, as shown in FIG. 15, the disc portions 64a and 65a. May be bent substantially at right angles toward the end of the magnet 61 from the outer periphery of the magnet, and only the tip may be in contact with the first recess 61a and the second recess 61b.

The perspective view of the double bearing reel which employ | adopted one Embodiment of this invention. Sectional drawing which shows the structure inside the reel main body of the said double bearing reel. The expanded sectional view of the spool braking device of the said double bearing reel. The disassembled perspective view of the spool braking device. The block diagram which shows the structure of the said spool braking device. The expansion exploded perspective view of the important section of the spool braking device. The enlarged front view of the board | substrate fixing plate of the said spool braking device. The enlarged side view of the said board | substrate fixing plate. The enlarged front view of the annular member with which the said reel main body is mounted | worn. The enlarged front view of the circuit board of the spool braking device. The expanded sectional view of the mode knob of the spool braking device. The expanded sectional view of the magnet of the spool braking device. The figure equivalent to FIG. 12 of other embodiment. The figure equivalent to FIG. 12 of other embodiment. The figure equivalent to FIG. 12 of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reel main body 5 Frame 6 1st side cover 7 2nd side cover 8 1st side plate 9 2nd side plate 12 Spool 13 Annular member 13a Female thread part 13b Anti-rotation recessed part 13c Positioning recessed part 13d Anti-rotation protrusion 20 Spool shaft 25 Spool brake mechanism 27 Magnet holding part 40 Spool braking unit 42 Spool control unit 43 Mode knob 43a Knob part 43b Knob main body 43c Magnet mount 43d Wall part 43e Sounding disc 43f Sounding projection 45 Mode knob position sensor 55 Control part 60 Rotor 61 Magnet 61a 1st Recessed portion 61b Second recessed portion 61c Outer peripheral surface 62 Coil 63 Switch element 64 First holding member 64a Disc portion 64b Contact portion 64c Outer peripheral surface 65 Second holding member 65a Disc portion 65b Contact portion 65c Outer peripheral surface 70 Circuit board 70a First Through-hole 80 Substrate assembly 81 Support member 81a Cylindrical portion 81b Rotation support portion 81c Male thread portion 81d Groove portion 82 Substrate fixing plate 82a Second through-hole 82b Positioning recess 82c Non-rotating projection 82d Non-rotating recess 83 Detent member 84 Insert member 84a Female thread portion 84b Projection portion 84c Shaft portion 84d Head portion 85 Fixing member 85a Male thread portion 86 Retaining member 90 Insulating coating

Claims (7)

A braking device for a dual-bearing reel that brakes a spool rotatably mounted on a reel body,
A first concave portion and a second concave portion that are attached to a rotation shaft of the spool so as to be integrally rotatable, rotate in conjunction with the spool, have a plurality of magnetic poles in the rotation direction, and have outer peripheral portions at both ends recessed in the radial direction. A magnet having
A dish-shaped first holding member and a second holding member, which are mounted so as to be in contact with the first concave portion and the second concave portion, respectively, and sandwich both end portions of the magnet;
A plurality of coils connected to the reel body at circumferential intervals around the magnet and connected in series;
Switch means connected to both ends of the plurality of coils;
A microcomputer for performing control to brake the spool by switching control of electric power generated in the coil by relative rotation of the coil and the magnet by the switch means; and
A spool brake device for a dual-bearing reel comprising:   2. The spool brake device for a dual-bearing reel according to claim 1, wherein each of the first concave portion and the second concave portion is formed in a tapered shape having a diameter reduced toward both end sides.   3. The dual bearing reel according to claim 2, wherein the first holding member and the second holding member are tapered cap members whose outer peripheral portions are tapered along the outer shapes of the first concave portion and the second concave portion. Spool brake device.   The first holding member and the second holding member are attached to the first recess and the second recess so that the outer peripheral surface is the same as the outer peripheral surface of the magnet or located radially inward from the outer peripheral surface of the magnet. The spool braking device for a double-bearing reel according to any one of claims 1 to 3.   The spool brake device for a dual-bearing reel according to any one of claims 1 to 4, wherein the first holding member and the second holding member are non-magnetic members.   The spool braking device for a dual-bearing reel according to any one of claims 1 to 5, wherein the magnets are a plurality of magnets arranged side by side in a rotation direction and having a plurality of magnetic poles having different polarities.   The spool brake device for a dual-bearing reel according to any one of claims 1 to 6, further comprising a circuit board mounted on the reel body and having the microcomputer and the plurality of coils attached thereto.

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