Braking device for braking reel and fishing reel having the same

Abstract

The present invention provides a braking device for braking a reel and a fishing reel having the braking device, which can prevent recoil and continue fishing even when the battery is exhausted by a method that does not cause the fishing reel to be enlarged. A braking device for a dual-bearing reel brakes a reel that is rotatably mounted on a reel body of the dual-bearing reel and can wind a fishing line, wherein the braking device for the dual-bearing reel is configured to include: a braked portion that is mounted on the reel; a braking portion that applies a braking force to the braked portion; an adjustment portion that can adjust the braking force of the braking portion; a control portion that controls the adjustment portion; a power supply portion that supplies power to the control portion; and a remaining amount detection portion that detects the remaining amount of the power supply portion, and when the remaining amount of the power supply is less than a specified value, the control portion adjusts the adjustment portion to a specified braking force value or the control portion sets the specified braking force value to a set value.

Description

Technical Field

[0001] The present invention relates to a braking device, and more particularly to a braking device for a double-bearing reel for braking a spool rotatably mounted on a reel body, and a fishing reel having the braking device. Background Art

[0002] Conventionally, a double-bearing reel, particularly a baitcasting reel in which a hook assembly such as a bait is mounted on the front end of a fishing line for casting (casting), is provided with a brake device for braking the reel in order to prevent recoil during casting (casting). Among such brake devices, there is a brake device that automatically adjusts the recoil prevention adjustment by rotating a magnet by an electric motor, as disclosed in Patent Document 1.

[0003] In patent document 1, the CPU calculates the rotation speed and rotation acceleration of the reel based on the signal from the sensor for detecting the rotation of the reel and the signal from the timing circuit, and compares the rotation speed and rotation acceleration with the data at regular intervals, thereby causing the non-magnetic conductor to generate eddy current when a difference of a certain value or more is generated, applying a brake to the reel, thereby extending the flight distance of the hook assembly. In addition, in such a braking device, an intermittent gear is axially supported on the reel body in a manner that allows rotational operation, and the intermittent manual gear is meshed with the motor shaft gear or the magnet gear in a manner that can be engaged or disengaged freely, thereby enabling manual adjustment when desired even when the battery generating the motor is exhausted.

[0004] Patent Document 1: Japanese Utility Model Publication No. 4-051581

[0005] However, in the braking device of Patent Document 1, the intermittent manual gear needs to be arranged near the outer casing of the reel in order to enable user operation, and therefore other components cannot be arranged outside the intermittent manual gear, which leads to a problem of increasing the size of the reel. Summary of the invention

[0006] The present invention has been made in view of the above circumstances, and its object is to prevent recoil and continue fishing even when the battery is exhausted, in a braking device for a reel capable of adjusting the braking force, by a method that does not cause the fishing reel to be enlarged. Other objects of the present invention will become clear by referring to the entire specification.

[0007] A braking device for a dual-bearing reel according to one embodiment of the present invention brakes a spool capable of winding a fishing line and which is rotatably mounted on a reel body of the dual-bearing reel, wherein the braking device for the dual-bearing reel is constructed to include: a braked portion mounted on the reel; a braking portion that applies a braking force to the braked portion; an adjustment portion capable of adjusting the braking force of the braking portion; a control portion that controls the adjustment portion; a power supply portion that supplies power to the control portion; and a remaining capacity detection portion that detects the remaining capacity of the power supply portion, and when the remaining capacity of the power supply is below a specified value, the control portion adjusts the adjustment portion to a specified braking force value or the control portion sets the specified braking force value to a set value.

[0008] In a braking device of a dual-bearing reel according to one embodiment of the present invention, the structure is such that, when the remaining battery level is below a specified value, the control unit cuts off the power supply to the power supply unit after adjusting the adjustment unit to a specified braking force value or after the control unit is set to a specified braking force value.

[0009] In the braking device for a dual-bearing reel according to one embodiment of the present invention, the predetermined braking force value is a maximum braking value of the braking portion.

[0010] The braking device of a dual-bearing reel according to one embodiment of the present invention is constructed as follows: the braking device also has a deceleration mechanism, and when the reduction ratio of the deceleration mechanism is set to r, the energization torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking part is set to Mmax, the control unit determines whether Mmax / T<r<Mmax / C is satisfied. When Mmax / T<r<Mmax / C is satisfied, the prescribed braking force value is the maximum braking force value of the braking part. When the margin of the power supply is below the prescribed value, the control unit adjusts the adjustment unit to the maximum braking force value or the control unit sets the maximum braking force value to the set value and cuts off the power supply to the power supply unit.

[0011] In the braking device for a dual-bearing reel according to one embodiment of the present invention, when the maximum braking force value is set to a set value, the braking unit generates the maximum braking force after the power supply is turned off.

[0012] In a dual-bearing reel braking device according to an embodiment of the present invention, when the remaining battery level is below a predetermined value, the control unit is configured to cut off the power supply to the power supply unit after adjusting the adjustment unit to a predetermined braking force value or without performing any adjustment.

[0013] In the braking device for a dual-bearing reel according to one embodiment of the present invention, the predetermined braking force value is an adjusted braking force value or a braking force value when the remaining battery level is equal to or less than a predetermined value.

[0014] The braking device of a dual-bearing reel according to one embodiment of the present invention is constructed as follows: the braking device also has a deceleration mechanism, and when the reduction ratio of the deceleration mechanism is set to r, the energization torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking part is set to Mmax, the control unit determines whether Mmax / T<r and Mmax / C<r are satisfied. When Mmax / T<r and Mmax / C<r are satisfied, when the battery remaining charge is below a specified value, the control unit cuts off the power supply of the power supply unit after adjusting the adjustment unit to a specified braking force value or without making any adjustment.

[0015] In the braking device for a dual-bearing reel according to one embodiment of the present invention, the braking unit is configured to be able to apply braking force even when electric power is not supplied to the control unit.

[0016] A braking device for a dual-bearing reel according to an embodiment of the present invention brakes a spool capable of winding a fishing line and rotatably mounted on a reel body of the dual-bearing reel, wherein the braking device for the dual-bearing reel is constructed to include: a braked portion mounted on the spool; a braking portion that applies a braking force to the braked portion; an electric motor capable of driving a portion of the braking portion; a speed reduction mechanism that transmits the drive of the electric motor to a portion of the braking portion; a control portion that controls the electric motor; a power supply portion that supplies power to the electric motor; and a residual capacity detection portion that detects the residual capacity of the power supply portion and, when the speed reduction ratio of the speed reduction mechanism is set to r, the energized torque of the electric motor is set to T, and the residual capacity of the power supply portion is set to R. When the holding torque of the motor is set to C and the maximum torque required to move the braking part is set to Mmax, the control unit determines whether Mmax / T<r<Mmax / C is satisfied or Mmax / T<r and Mmax / C<r is satisfied. When it is judged to be the former, when the remaining power supply is below the specified value, the control unit adjusts the adjustment unit to the maximum braking force value or the control unit sets the maximum braking force value to the set value and cuts off the power supply of the power supply unit. When it is judged to be the latter, when the remaining battery is below the specified value, the control unit adjusts the adjustment unit to the specified braking force value or cuts off the power supply of the power supply unit without adjusting it.

[0017] A fishing reel according to one embodiment of the present invention is configured to include any of the above-described braking devices.

[0018] According to the above embodiment, it is possible to provide a braking device and a fishing reel having the braking device, which can reliably prevent kickback and continue fishing even when the battery is exhausted by a method that does not increase the size of the fishing reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a diagram for explaining a fishing reel having a braking device according to an embodiment of the present invention.

[0020] Figure 2 This is a diagram showing the structure of a braking device or a braking device in a fishing reel according to an embodiment of the present invention.

[0021] Figure 3 : is a graph showing the relationship between the position θ of the rotating magnet relative to the fixed magnet and the magnetic potential energy of the magnetic circuit.

[0022] Figure 4 1 is a diagram showing the relationship between the position θ of the rotating magnet relative to the fixed magnet and the magnitude F(θ) of the magnetic force acting on the rotating magnet.

[0023] Figure 5 1 is a diagram showing the relationship between the position θ of the rotating magnet relative to the fixed magnet and the magnitude F(θ) of the magnetic force acting on the rotating magnet.

[0024] Description of symbols

[0025] 1: fishing reel; 2: frame (reel body); 3: drum; 4: braked part (brake unit); 5: bearing; 6: rotating magnet; 7: fixed magnet; 8: brake part (brake unit); 9: mounting plate; 10: brake device; 11: middle cover; 12: motor; 13: gear; 14: gear; 15: gear; 16: speed reduction mechanism (speed reduction gear train); 17: magnet gear; 18: battery; 19: control board; 20: outer cover. DETAILED DESCRIPTION

[0026] Hereinafter, the braking force control device of the present invention and the fishing reel having the braking force control device will be described in detail with reference to the accompanying drawings. In a plurality of drawings, common structural elements are marked with the same reference numerals in the plurality of drawings. It should be noted that, for ease of description, the drawings may not be recorded in exact scale.

[0027] Reference Figures 1 to 5 A braking device for a dual-bearing reel according to an embodiment of the present invention and a fishing reel having the braking device are described below. First, Figure 1It is a cross-sectional view of the fishing reel 1, and shows a cross section passing through the central axis of a reduction gear train described later. In order to simplify the description, illustration and description of a part of the known functions of the fishing reel 1 are omitted.

[0028] like Figure 1 As shown, a fishing reel 1 according to an embodiment of the present invention is composed of a frame (reel body) 2, a spool 3, a braked portion (brake unit) 4, a bearing 5, a brake portion (brake unit) 8 including a rotating magnet 6 and a fixed magnet 7, a mounting plate 9, an inner cover 11, a motor 12, a speed reduction unit (speed reduction gear train) 16 including a gear 13, a gear 14, and a gear 15, a magnet gear 17, a battery 18, a control substrate 19, and an outer cover 20. Here, a brake device according to an embodiment of the present invention described later has a braked portion 4 and a brake portion 8 including a rotating magnet 6 and a fixed magnet 7, but may include parts other than these components.

[0029] The frame (reel body) 2 can be mounted on a fishing rod (not shown). The fishing reel 1 has an operating unit (handle) (not shown) similar to conventional fishing reels, and the reel can be wound by rotating the reel in the forward direction through the operation of the user. The rotation of the handle is transmitted to the reel through a transmission unit such as a gear (not shown).

[0030] In addition, the fishing reel 1 has a clutch unit (not shown), and the user can select whether to connect or disconnect the power transmission to the reel by operating the clutch unit. In the connected state, the operating unit can be used to reel in. In the released state, the reel can be freely rotated in the forward and reverse directions, so that the fishing line can be released.

[0031] The fishing reel 1 may also include a dragging unit (not shown) for preventing the breakage of the fishing line by sliding the reel when a torque greater than a predetermined value is applied, and a reverse rotation preventing unit (not shown) for preventing the reverse rotation of the handle. Furthermore, an oscillating device (not shown) may be provided for evenly winding the fishing line by reciprocating the position of the guide portion for guiding the fishing line in accordance with the rotation of the reel.

[0032] The reel 3 is supported to be rotatable relative to the reel body 2, and can be rotated in the forward direction to wind the fishing line around the outer circumference. In addition, when casting a bait, the reel 3 rotates in the reverse direction to release the wound fishing line. At this time, if the amount of fishing line released is too much compared to the amount of movement of the bait, etc., the excess line will cause a line entanglement called a backlash, which hinders the normal use of the fishing reel 1. Therefore, an appropriate braking force is applied to the reel 3 by the brake device 10 described later, thereby preventing the backlash.

[0033] The braked part (induction rotor) 4 is coaxially fixed to the reel 3 and cannot rotate, so that a braking torque can be applied to the reel 3. The braked part 4 is made of a conductor such as aluminum, copper, iron, etc., and is formed into a roughly cylindrical shape. In a braking device 10 according to one embodiment of the present invention, a so-called eddy current brake is used to apply a braking force by generating eddy currents in the braked part 4. That is, when a magnetic field is applied to the braked part 4 from the outside, eddy currents are generated in the braked part in motion. Through the interaction between the eddy currents and the magnetic field, a braking torque proportional to the angular velocity of the reel 3 and the strength of the magnetic field is generated.

[0034] in addition, Figure 1 The mounting plate 9 shown can be fixed to the frame 2. By fixing the mounting plate 9 to the frame 2, the reel 3 is axially supported so as to be rotatable. In addition, by using the mounting plate 9 to hold the fixed magnet 7 and the rotating magnet (movable magnet) 6, a braking device 10 described later is formed. In addition, by integrating the mounting plate 9, the middle cover 11 and the outer cover 20, a side plate unit can be formed. In addition, a watertight chamber is formed by the middle cover 11 and the outer cover 20, and electrical components such as substrates, batteries, motors, and sensors can be stored inside.

[0035] Next, the structure of the brake device 10 according to one embodiment of the present invention is described. In the brake device 10 according to one embodiment of the present invention, a magnetic field is applied to the braked part by a magnetic circuit having at least one permanent magnet. In addition, the magnetic circuit is formed by two permanent magnets, and the magnetic field applied to the braked part can be adjusted by moving the permanent magnets relative to each other using an adjustment unit described later.

[0036] In addition, if Figure 2 As shown in FIG. 1 , a fixed magnet 7 is arranged on the inner circumference of the braked portion (brake member) 4, and a rotating magnet 6 is arranged on the outer circumference of the braked portion 4. The rotating magnet 6 and the fixed magnet 7 are respectively divided into N equal parts in the circumferential direction (in Figure 2 In the example of the invention, the magnetic field is divided into four equal parts, and the N pole and the S pole are alternately magnetized. Thus, a magnetic field penetrating the braked portion 4 is formed.

[0037] exist Figure 2 In the state (a), the S pole of the fixed magnet 7 faces the N pole of the rotating magnet 6. That is, the opposite poles face each other, and the intensity of the magnetic field penetrating the braked part is the largest. This state is referred to as the maximum braking state. On the other hand, in Figure 2 In the state (b), the S pole of the fixed magnet 7 faces the S pole of the rotating magnet 6, that is, the same poles face each other, and the magnetic field penetrating the braked part is minimum. This state is referred to as the minimum braking state.

[0038] The rotating magnet 6 can rotate and move between a maximum braking state and a minimum braking state through an adjustment unit. Specifically, the rotating magnet 6 is fixed to a magnet gear (magnet holding gear) 17 made of resin or the like and having a gear, and the magnet gear 17 is supported by an axis so as to be able to rotate within a range of 0° to 90° relative to the mounting plate 9. The magnet gear 17 receives rotation transmission from the motor 12 via a reduction mechanism (reduction gear train) 16. In addition, the adjustment unit includes the motor 12, the reduction mechanism 16, and the magnet gear 17, but may also include components other than these. In this way, the adjustment unit (motor 12) can cause the rotating magnet 6 to rotate relative to the fixed magnet 7. The reduction gear train 16 is a well-known reduction unit, and in one embodiment of the present invention, it is composed of Figure 1 The gear 13, the gear 14, and the gear 15 are shown as three two-stage gears, but the present invention is not limited to this and any configuration is possible. Here, the reduction ratio of the reduction gear train is referred to as r.

[0039] then, Figure 3 The relationship between the position θ of the rotating magnet relative to the fixed magnet and the magnetic potential energy of the magnetic circuit is shown. As shown in the figure, the magnetic potential energy of the magnetic circuit is the highest in the minimum braking state where the same poles face each other, and the lowest in the maximum braking state where the opposite poles face each other. The change is roughly a Sin curve.

[0040] A braking device for a dual-bearing reel according to an embodiment of the present invention brakes a reel capable of winding a fishing line and rotatably mounted on a reel body of the dual-bearing reel, wherein the braking device for the dual-bearing reel is configured to include: a braked portion mounted on the reel; a braking portion that applies a braking force to the braked portion; an adjustment portion that can adjust the braking force of the braking portion; a control portion that controls the adjustment portion; a power supply portion that supplies power to the control portion; and a remaining amount detection portion that detects the remaining amount of the power supply portion, and when the remaining amount of the power supply is less than a specified value, the control portion adjusts the adjustment portion to a specified braking force value or the control portion sets the specified braking force value to a set value. Here, the so-called situation where the remaining amount of the power supply becomes less than a specified value is considered, for example, a situation where the remaining amount of the power supply becomes 10% of a fully charged state, but is not limited to this (the same applies to this specification). In addition, the specified braking force value is, for example, the maximum braking value of the braking portion or a value pre-entered by a user, but is not limited to this and can be set appropriately.

[0041] According to the braking device for a dual-bearing reel according to one embodiment of the present invention, it is possible to reliably prevent kickback and continue fishing even when the battery is exhausted, without increasing the size of the braking device and the fishing reel.

[0042] In a braking device for a dual-bearing reel according to an embodiment of the present invention, when the remaining battery level is below a predetermined value, the control unit cuts off the power supply of the power supply unit after adjusting the adjustment unit to a predetermined braking force value or after the control unit is set to a predetermined braking force value. In this way, when the power supply is lost, the braking force is set to a predetermined setting value without consuming electricity, thereby achieving fail-safe protection.

[0043] In the braking device for a dual-bearing reel according to one embodiment of the present invention, the predetermined braking force value is a maximum braking value of the braking portion.

[0044] The braking device of a dual-bearing reel according to one embodiment of the present invention is configured such that the braking device further includes a speed reduction mechanism, and when the speed reduction ratio of the speed reduction mechanism is set to r, the energizing torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking unit is set to Mmax, the control unit determines whether Mmax / T<r<Mmax / C is satisfied, and when Mmax / T<r<Mmax / C is satisfied, the prescribed braking force value is the maximum braking force value of the braking unit, and when the margin of the power supply is less than the prescribed value, the control unit adjusts the adjustment unit to the maximum braking force value or the control unit sets the maximum braking force value to the set value and cuts off the power supply of the power supply unit. In addition, in the braking device of a dual-bearing reel according to one embodiment of the present invention, when the maximum braking force value is set to the set value, the braking unit generates the maximum braking force after the power supply is cut off.

[0045] Thus, by adjusting the maximum braking force value before power is cut off or generating the maximum braking force value after power is cut off, it is possible to reliably prevent kickback and continue fishing even when the battery is exhausted, without increasing the size of the braking device and the fishing reel.

[0046] Figure 4 The relationship between the position θ of the rotating magnet relative to the fixed magnet and the magnitude F(θ) of the magnetic force acting on the rotating magnet is shown. The magnetic force acting on the rotating magnet is obtained by differentiating the magnetic potential energy with respect to the distance, and changes roughly along the Cos curve. In the minimum braking state and the maximum braking state, the magnetic force becomes 0, and the maximum magnetic force Mmax is reached in the middle. The maximum braking state is a stable point, and a restoring force toward this point is generated even when a slight angle change occurs. The minimum braking state is an unstable point, and moves toward a stable point when a slight angle change occurs.

[0047] Thus, when the rotating magnet is in the minimum braking state, although no magnetic force is applied to the rotating magnet, when it is subjected to external impact and vibration and is slightly displaced, a magnetic force toward the maximum braking state as a stable point begins to be generated. In addition, when the rotating magnet is between the minimum braking state and the maximum braking state, a magnetic force toward the maximum braking state is generated. Furthermore, when the rotating magnet is in the maximum braking state, no magnetic force is generated. When it is subjected to external impact and vibration and is slightly displaced, a magnetic force is generated to return to the maximum braking state.

[0048] In one embodiment of the present invention, in order to move the rotating magnet by the motor, the moving force of the rotating magnet generated by the motor needs to be greater than the magnetic force generated between the rotating magnet and the fixed magnet. That is, if the energizing torque of the motor is set to T and the reduction ratio between the motor and the rotating magnet is set to r, then r>Mmax / T is required. Thus, in the motor drive, the magnetic force can be overcome and the rotating magnet can be positioned at an arbitrary position.

[0049] On the other hand, when the motor drive stops due to battery exhaustion or power cut of the control board, the motor receives torque in the rotation direction through the gears due to the magnetic force between the rotating magnet and the fixed magnet. When the motor is not powered, cogging torque due to uneven torque acting between the rotor and the stator, and holding torque C due to friction torque of bearings, etc. are usually generated.

[0050] In one embodiment of the present invention, the reduction ratio r can be set to satisfy r<Mmax / C. Here, a holding torque of rC is generated between the rotating magnet 6 and the fixed magnet 7 . Figure 4 The torque rC is shown. The points where F(θ)=rC are θ1 and θ2, 0° to θ1° is region A, θ1° to θ2° is region B, and θ2° to 90° is region C.

[0051] Thus, in region B, the maximum magnetic force generated between the rotating magnet 6 and the fixed magnet 7 exceeds the holding torque of the motor, and even when the drive to the motor 12 is interrupted, the fixed magnet 7 can be moved to the maximum braking state without consuming power or requiring special operations.

[0052] In the minimum braking state, the braking torque on the reel is minimized. Therefore, in the case of casting a lure, etc., the possibility of extending the flight distance becomes higher, while on the other hand, the risk of recoil (line entanglement) is the greatest. On the other hand, in the maximum braking state (the state with the highest braking force), the braking torque on the reel is the greatest. Therefore, in the case of casting a lure, etc., although the flight distance is not extended, the risk of recoil (line entanglement) is minimized.

[0053] If the line is entangled to a great extent, the function of the fishing reel will be lost and the user will not be able to continue fishing. Therefore, when the battery supplying power to the motor is about to be cut off (when the remaining power supply is below a specified value), or when the motor cannot be driven, it is preferable to set the fishing reel to the maximum braking state, thereby achieving a fail-safe fishing reel.

[0054] By means of a braking device 10 according to an embodiment of the present invention and a fishing reel having the braking device, the magnetic force generated between the rotating magnet and the fixed magnet can be made greater than the holding torque of the motor, and when the power supply to the motor is stopped, the maximum braking state can be automatically achieved, and failure protection can be realized. At this time, since it is not necessary to operate the various gears constituting the deceleration mechanism from the outside, there is no restriction on the layout, so the overall enlargement of the reel can be avoided. In addition, the reduction ratio r is preferably minimized as much as possible on the basis of satisfying r>Mmax / T. Thus, the range of area B can be increased. Thus, no matter in which area, when the power supply to the motor is stopped, the maximum braking state can be automatically achieved.

[0055] In addition, in a braking device for a dual-bearing reel according to an embodiment of the present invention, the control unit is configured to cut off the power supply of the power supply unit after adjusting the adjustment unit to a prescribed braking force value or without adjusting the adjustment when the remaining battery level is below a prescribed value. In addition, in a braking device for a dual-bearing reel according to an embodiment of the present invention, the prescribed braking force value is an adjusted braking force value or a braking force value when the remaining battery level is below a prescribed value. In this way, the adjusted braking force value or the braking force value immediately before the power supply of the power supply unit is cut off (the braking force when the remaining battery level becomes below a prescribed value) can be maintained.

[0056] The braking device of a double-bearing reel according to one embodiment of the present invention is configured such that the braking device further has a deceleration mechanism, and when the deceleration ratio of the deceleration mechanism is set to r, the energizing torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking unit is set to Mmax, the control unit determines whether Mmax / T<r and Mmax / C<r are satisfied, and when Mmax / T<r and Mmax / C<r are satisfied, when the remaining battery charge is below a prescribed value, the control unit cuts off the power supply of the power supply unit after adjusting the adjustment unit to a prescribed braking force value or without adjusting the power supply. In this way, the braking force value after adjustment or the braking force value immediately before the power supply of the power supply unit is cut off (the braking force when the remaining battery charge becomes below a prescribed value) can be maintained.

[0057] According to the braking device for a dual-bearing reel according to one embodiment of the present invention, it is possible to reliably prevent kickback and continue fishing even when the battery is exhausted, without increasing the size of the braking device and the fishing reel.

[0058] In the braking device for a dual-bearing reel according to one embodiment of the present invention, the braking unit is configured to be able to apply braking force even when electric power is not supplied to the control unit.

[0059] Then, with Figure 4 Similarly, in Figure 5 The relationship between the position θ of the rotating magnet relative to the fixed magnet and the magnitude F(θ) of the magnetic force acting on the rotating magnet is shown in FIG. The magnetic force acting on the rotating magnet is obtained by differentiating the magnetic potential energy with respect to the distance, and changes roughly along the Cos curve. In the minimum braking state and the maximum braking state, the magnetic force becomes 0, respectively, and the maximum magnetic force Mmax is obtained in the middle. The maximum braking state is a stable point, and a restoring force toward this point is generated even when a slight angle change occurs. The minimum braking state is an unstable point, and moves toward a stable point when a slight angle change occurs.

[0060] In addition, similar to the above, when the rotating magnet is in the minimum braking state, although no magnetic force is applied to the rotating magnet, it is subjected to external impact and vibration, and begins to generate a magnetic force toward the maximum braking state as a stable point when a small displacement is performed. In addition, when the rotating magnet is between the minimum braking state and the maximum braking state, a magnetic force toward the maximum braking state is generated. And, when the rotating magnet is in the maximum braking state, no magnetic force is generated. When a small displacement is performed due to external impact and vibration, a magnetic force is generated to restore to the maximum braking state.

[0061] In addition, as described above, in order to move the rotating magnet by the motor, the moving force of the rotating magnet generated by the motor needs to be greater than the magnetic force generated between the rotating magnet and the fixed magnet. That is, if the power-on torque of the motor is set to T, and the reduction ratio between the motor and the rotating magnet is set to r, then r>Mmax / T is required. Thus, in the motor drive, the magnetic force can be overcome and the rotating magnet can be positioned at an arbitrary position. Therefore, when the battery remaining amount becomes less than a specified value, the above-mentioned adjustment unit can be adjusted to a specified braking force value, and the power supply of the power supply unit can be cut off after the adjustment. On the other hand, if no adjustment is required, the power supply of the power supply unit can be cut off without making an adjustment.

[0062] On the other hand, when the motor drive stops due to battery exhaustion or power cut of the control board, the motor receives torque in the rotation direction through the gears due to the magnetic force between the rotating magnet and the fixed magnet. When the motor is not powered, cogging torque due to uneven torque acting between the rotor and the stator, and holding torque C due to friction torque of bearings, etc. are usually generated.

[0063] The reduction ratio r in the present invention is set to r>Mmax / C. Thus, a holding torque of rC is generated between the rotating magnet and the fixed magnet. Figure 5 The torque rC is shown. In this way, the magnetic force F(θ) acting between the fixed magnet and the rotating magnet is smaller than the torque rC in the entire area. In this way, through the braking device of an embodiment of the present invention and the fishing reel having the braking device, the holding torque (holding force) of the motor can be greater than the magnetic force generated between the rotating magnet and the fixed magnet. Thus, when the power to the motor is stopped, the fixed magnet can continue to maintain its position. When the battery remaining level becomes less than a specified value, the specified braking force (including either one of after adjustment and without adjustment) can be maintained by cutting off the power supply of the power supply unit after adjusting the adjustment unit to a specified braking force value or without adjusting.

[0064] A braking device for a dual-bearing reel according to an embodiment of the present invention brakes a spool capable of winding a fishing line and rotatably mounted on a reel body of the dual-bearing reel, wherein the braking device for the dual-bearing reel is constructed to include: a braked portion mounted on the spool; a braking portion that applies a braking force to the braked portion; an electric motor capable of driving a portion of the braking portion; a speed reduction mechanism that transmits the drive of the electric motor to a portion of the braking portion; a control portion that controls the electric motor; a power supply portion that supplies power to the electric motor; and a residual capacity detection portion that detects the residual capacity of the power supply portion and, when the speed reduction ratio of the speed reduction mechanism is set to r, the energized torque of the electric motor is set to T, and the residual capacity of the power supply portion is set to R. When the holding torque of the motor is C and the maximum torque required to move the brake unit is Mmax, the control unit determines whether Mmax / T<r<Mmax / C is satisfied or Mmax / T<r and Mmax / C<r is satisfied. In the case of the former, when the remaining amount of the power source is less than the prescribed value, the control unit adjusts the adjustment unit to the maximum braking force value or sets the maximum braking force value to the set value and cuts off the power supply of the power source. In the case of the latter, when the remaining amount of the battery is less than the prescribed value, the control unit cuts off the power supply of the power source after adjusting the adjustment unit to the prescribed braking force value or without adjusting. In this way, the control unit can maintain the maximum braking force value by adjusting to the maximum braking force value before cutting off the power supply or generating the maximum braking force value after cutting off the power supply, or adjust to the prescribed braking force or without adjusting, and maintain the adjusted braking force value or the braking force value before cutting off the power supply of the power source (the braking force when the remaining amount of the battery becomes less than the prescribed value) based on which condition is satisfied.

[0065] A fishing reel according to one embodiment of the present invention is configured to include any of the above-described braking devices.

[0066] According to a dual-bearing reel braking device or a fishing reel having the braking device according to one embodiment of the present invention, it is possible to reliably prevent kickback and continue fishing even when the battery is exhausted, by a method that does not increase the size of the braking device and thus the fishing reel.

[0067] Next, a control method of the brake device 10 according to an embodiment of the present invention is described. As described above, in an embodiment of the present invention, the braking torque on the reel can be adjusted to a predetermined amount by making the rotating magnet rotate relative to the fixed magnet through the adjustment unit. The braking torque corresponding to each condition is set by detecting the rotational movement amount and the rotational speed of the reel as needed.

[0068] A control unit is arranged in the control substrate, and the control unit is composed of electrical components such as a motor driver for passing current to the motor and a microcomputer equipped with a program for determining the driving amount to the motor. The positioning of the motor can be performed by using a known method such as feedforward control using a stepping motor and feedback control using a position sensor. In this way, the rotating magnet can be moved to a specified position, and a specified braking force can be applied to the reel.

[0069] The braking device of a dual-bearing reel according to one embodiment of the present invention also includes: a remaining power detection unit, which detects the remaining power of the battery; and a control unit, which controls the adjustment unit (including the motor), and is configured such that when it is detected that the remaining power of the battery becomes below a specified value, the control unit cuts off the power supply of the braking device after achieving a specified state through the braking unit.

[0070] In the braking device of a dual-bearing reel according to one embodiment of the present invention, the braked portion is a conductive member, and the braking portion is a magnetic circuit having at least one rotatable magnet that applies magnetic force to the conductive member.

[0071] In a braking device of a dual-bearing reel of one embodiment of the present invention, the braking portion is a magnetic circuit having at least one rotatable magnet, which imparts magnetic force to the conductive component, and the specified state refers to the state of the position of the rotatable magnet being maintained when it is detected that the remaining amount of the battery becomes below a specified value.

[0072] In the braking device for a dual-bearing reel according to one embodiment of the present invention, the speed reduction mechanism is one or more speed reduction gears.

[0073] Here, when the battery is sufficient, the motor is driven during casting (casting), and the position of the rotating magnet is appropriately adjusted, thereby applying an appropriate braking force corresponding to the timing. Thus, it is possible to take into account both the increase in casting distance and the suppression of recoil. Thus, when the battery is insufficient, the rotating magnet can be moved to a specified position before the power is cut off. The position of the rotating magnet at this time can be set to, for example, the maximum braking state or its vicinity. Thus, although the casting distance is reduced, the risk of recoil can be reduced. Thus, even when the battery is exhausted, the user can continue fishing. In addition, the position of the rotating magnet before the power is cut off can also be input by the user.

[0074] The remaining amount detection unit for detecting the remaining amount of the battery can cite, for example, a method for detecting the remaining amount of the battery based on the voltage drop of the battery. In this case, a structure for directly reading the potential difference of the battery and a structure for reading the potential difference of a shunt resistor provided in the circuit are considered. In addition, there is a coulomb counting method for measuring the power used from full charge by accumulating the current used, a battery cell modeling method for correcting the coulomb counting method by learning the time change of the battery and the environmental change, and an impedance tracking method for always recording the impedance of the battery, etc., but it is not limited to a specific method.

[0075] The predetermined position to be moved when the remaining battery level is low is preferably Figure 4 Area C shown. In area A, the risk of recoil is high because the braking torque is small. Therefore, when it is in this state before the power is turned off, the power can be turned off after moving to area C. In area B, since the magnetic force exceeds the holding torque of the motor, it cannot maintain its position when the power is turned off, and the movable magnet can automatically move to area C, but since the attraction and holding force between the magnets are roughly balanced, the movable magnet does not move depending on the friction state, etc., and the position of the movable magnet is unstable. Therefore, when it is in this state before the power is turned off, the power can be turned off after moving to area C. In area C, the magnetic force is lower than the holding torque of the motor, so the position of the movable magnet is stable. Moreover, since the braking torque is large, the risk of recoil is low.

[0076] In the control unit of the brake device 10 according to one embodiment of the present invention, even when the battery is low, the movable magnet can be moved to the area C before the power is turned off. Then, the power of the control device is turned off. Thus, even after the power is turned off, sufficient braking force can be applied to the reel, and although the flight distance of the bait or the like may be reduced, the risk of causing a recoil can be reduced, and a fishing reel with fail-safe can be achieved.

[0077] In this way, when the remaining battery level becomes less than a predetermined value, by cutting off the power supply after the magnetic circuit is in a predetermined state, even in the case of a reduction ratio in area B, a fishing reel with fail-safe protection can be reliably achieved. At this time, since it is not necessary to operate the gears constituting the reduction mechanism from the outside, there are no restrictions on the layout. Therefore, the overall size of the reel can be avoided.

[0078] The size, material and configuration of each structural element described in this specification are not limited to the contents explicitly described in the embodiment, and each structural element can be deformed to have any size, material and configuration that can be included in the scope of the present invention. In addition, the structural elements not explicitly described in this specification can be added to the described embodiment, and part of the structural elements described in each embodiment can be omitted.

Claims

1. A braking device, which is a braking device for a double-bearing reel, and brakes a reel that is rotatably mounted on a reel body of the double-bearing reel and can wind a fishing line, characterized in that: The brake device has: a braked portion mounted on the reel; a braking portion that applies a braking force to the braked portion; an adjusting portion capable of adjusting the braking force of the braking portion; a control unit that controls the adjustment unit; a power supply unit that supplies power to the control unit; and a residual capacity detection unit for detecting the residual capacity of the power supply unit, When the remaining amount of the power source is below a specified value, the control unit causes the adjustment unit to adjust the braking force of the brake unit to a specified braking force value or the control unit sets the specified braking force value of the brake unit to a set value, thereby preventing the recoil of the fishing line caused by the fishing line being entangled due to excessive release of the fishing line when the power source is exhausted and continuing fishing.

2. The braking device according to claim 1, wherein: When the remaining battery level is equal to or less than a predetermined value, the control unit cuts off the power supply of the power supply unit after causing the adjustment unit to adjust the braking force value to a predetermined value or after the control unit sets the braking force value to a predetermined value.

3. The braking device according to claim 1 or 2, wherein: The predetermined braking force value is a maximum braking value of the braking unit.

4. The braking device according to claim 1, wherein: The brake device also has a speed reduction mechanism, and the adjustment unit includes an electric motor. When the reduction ratio of the reduction mechanism is set to r, the power-on torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking part is set to Mmax, the control unit determines whether Mmax / T<r<Mmax / C is satisfied. When Mmax / T<r<Mmax / C is satisfied, the specified braking force value is the maximum braking force value of the braking part. When the margin of the power supply is below the specified value, the control unit adjusts the adjustment unit to the maximum braking force value or the control unit sets the maximum braking force value to the set value and cuts off the power supply of the power supply unit.

5. The braking device according to claim 4, wherein: When the maximum braking force value is set to a set value, the brake unit generates the maximum braking force after the power supply is turned off.

6. The braking device according to claim 1, wherein: When the remaining battery level is equal to or less than a predetermined value, the control unit cuts off the power supply of the power supply unit after causing the adjustment unit to adjust the braking force to a predetermined value or without performing the adjustment.

7. The braking device according to claim 1 or 6, wherein: The predetermined braking force value is the braking force value after adjustment or the braking force value when the remaining battery level is equal to or less than a predetermined value.

8. The braking device according to claim 1, wherein: The brake device also has a speed reduction mechanism, and the adjustment unit includes an electric motor. When the reduction ratio of the reduction mechanism is set to r, the energization torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking part is set to Mmax, the control unit determines whether Mmax / T<r and Mmax / C<r are satisfied. When Mmax / T<r and Mmax / C<r are satisfied, when the battery remaining charge is below a specified value, the control unit cuts off the power supply of the power supply unit after adjusting the adjustment unit to a specified braking force value or without making any adjustment.

9. The braking device according to claim 1 or 2, wherein: The braking unit can apply braking force even when electric power is not supplied to the control unit.

10. A braking device, which is a braking device for a dual-bearing reel, and brakes a reel that is rotatably mounted on a reel body of the dual-bearing reel and can wind a fishing line, wherein: The brake device has: a braked portion mounted on the reel; a braking portion that applies a braking force to the braked portion; an electric motor capable of driving a portion of the brake portion; a speed reduction mechanism that transmits the drive of the electric motor to a portion of the brake portion; a control unit that controls the motor; a power supply unit that supplies power to the motor; and a residual capacity detection unit for detecting the residual capacity of the power supply unit, When the reduction ratio of the reduction mechanism is set to r, the energization torque of the motor is set to T, the holding torque of the motor is set to C, and the maximum torque required to move the braking part is set to Mmax, the control unit determines whether Mmax / T<r<Mmax / C is satisfied or Mmax / T<r and Mmax / C<r is satisfied. In the case of the former, when the remaining amount of the power supply is below a specified value, the control unit causes the motor to adjust the braking force of the brake unit to a maximum braking force value or the control unit sets the maximum braking force value of the brake unit to a set value, and cuts off the power supply of the power supply unit. In the latter case, when the remaining battery level is below a predetermined value, the control unit cuts off the power supply of the power supply unit after causing the electric motor to adjust the braking force of the brake unit to a predetermined braking force value or without adjusting the braking force. Thus, when the power supply runs out, the user can continue fishing while preventing the recoil that would otherwise cause the fishing line to become tangled due to the fishing line being unnecessarily released.

11. A fishing reel comprising the braking device according to any one of claims 1 to 10.

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