Braking device and fishing reel equipped with the same

Abstract

To provide a brake device in which a member for generating brake force and detected means for detecting rotation, are integrated, for avoiding size increase of the device, cost increase and inertia increase of the spool, and a fishing reel comprising the same.SOLUTION: There is provided a brake device for a fishing reel in one embodiment, the brake device comprising: a part to be braked which is formed of a conductor being attached to a spool to which a fishing line can be wound; a brake part for applying a magnetic field to the part to be braked for generating brake force; a detected part provided on the part to be braked; and a rotation detection sensor for detecting the detected part for reading rotation of the spool.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a braking device, particularly a braking device for a two-bearing reel that brakes a spool rotatably mounted on a reel body, and a fishing reel equipped with the braking device.

Background Art

[0002] Conventionally, two-bearing reels, particularly bait casting reels that attach a rig such as a lure to the tip of a fishing line and perform casting, are provided with a braking device that brakes the spool in order to prevent backlash during casting. As this type of braking device, there is one that can adjust the braking force electrically, as in Patent Document 1, so that the braking force can be adjusted during the casting of a lure or the like.

[0003] As such a two-axis fishing reel, Patent Document 1 discloses a fishing reel including a sensor that detects the rotation of a spool, a counter circuit that counts the number of pulses for each signal of a reference clock circuit by a pulse counter based on a signal from the sensor, and a control means that calculates the rotational speed and rotational acceleration of the spool from the number of pulses from the counter circuit by an arithmetic circuit and generates eddy currents in a non-magnetic conductor when the value reaches a value set in advance by a data setter.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In Patent Document 1, in order to acquire the state such as the number of rotations of the spool during casting, a rotation detection sensor is provided on the spool, and a detected means such as a magnet or a reflecting portion provided on the spool is converted into an electric signal by a detection means such as a magnetic sensor or a photo sensor, thereby detecting the rotation speed and the rotation movement amount. Therefore, in addition to the member that generates the braking force, it is necessary to separately provide the detected means on the spool, which causes problems such as an increase in the size and cost of the entire apparatus and an increase in the inertia of the spool.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide a braking device capable of avoiding an increase in the size and cost of the apparatus and an increase in the inertia of the spool by integrating a member that generates a braking force and a detected means for detecting rotation, and a fishing reel equipped with the same. Other objects of the present invention will become apparent by referring to the entire specification.

Means for Solving the Problems

[0007] A braking device for a fishing reel according to an embodiment of the present invention includes a braking portion to be controlled, which is a conductor attached to a spool capable of winding a fishing line, and the braking portion to be controlled to a braking portion that generates a braking force by applying a magnetic field, a detected portion provided on the braking portion to be controlled, and a rotation detection sensor that detects the rotation of the spool by detecting the detected portion.

[0008] In the braking device according to an embodiment of the present invention, the rotation detection sensor is a reflection type photo sensor, and the detected portion is provided on the braking portion to be controlled by performing two types of surface treatments with different reflectivities on an end surface of the braking portion to be controlled.

[0009] In the braking device according to an embodiment of the present invention, the rotation detection sensor is a transmission type photo sensor, and the detected portion is configured to be provided on the braking portion to be controlled by alternately providing a light shielding portion and a transmission portion on the braking portion to be controlled.

[0010] In a braking device according to an embodiment of the present invention, the rotation detection sensor is a capacitance type proximity sensor, and the detected portion is configured to be provided on the braking portion by forming a concave portion and a convex portion on a surface facing the rotation detection sensor.

[0011] In a braking device according to an embodiment of the present invention, the braking portion is composed of two cylindrical magnets facing each other in the radial direction of the braking portion, and the rotation detection sensor is configured to be disposed between the two cylindrical magnets when viewed in the radial direction.

[0012] The braking device according to an embodiment of the present invention is configured such that the braking force can be adjusted by moving at least one of the two cylindrical magnets by a motor.

[0013] A fishing reel according to an embodiment of the present invention is configured to include any one of the above braking devices.

Advantages of the Invention

[0014] According to the above embodiment, it is possible to provide a braking device that can avoid an increase in the size, cost, and inertia of the spool of the device by integrating a member that generates a braking force and a detected means for detecting rotation, and a fishing reel equipped with the same.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0016] Hereinafter, embodiments of a braking device according to the present invention and a fishing reel equipped with the same will be specifically described with reference to the accompanying drawings. The same reference numerals are assigned to common components in a plurality of drawings. Note that each drawing is not necessarily drawn to an exact scale for convenience of explanation.

[0017] With reference to FIGS. 1 to 4, a fishing reel according to an embodiment of the present invention and a braking device included therein will be described. For simplicity of explanation, some known functions of the fishing reel 1 are omitted from the illustration and description.

[0018] First, FIG. 1 is a cross-sectional view of the fishing reel 1, showing a cross-section passing through the central axis of a reduction gear train described later. For simplicity of explanation, some known functions of the fishing reel 1 are omitted from the illustration and description.

[0019] As shown in FIG. 1, the fishing reel 1 according to an embodiment of the present invention is configured to include a frame (reel body) 2, a spool 3, a part to be braked (induct rotor) 4, a bearing 5, a braking part (braking means) 6, a set plate 7, a lock member (not shown), an inner lid 8, a motor 9, a reduction mechanism (reduction gear train) 10, a battery 11, a substrate 12, a detection part (rotation detection sensor) 13 described later, and an outer lid 14. However, it may include other components than these components.

[0020] The frame (reel body) 2 is configured to be attachable to a fishing rod (not shown). The fishing reel 1 according to an embodiment of the present invention has an operation unit or operation means (for example, a handle), not shown, similar to a conventional fishing reel, and can rotate the spool 3 in the forward direction by a user's operation to wind up the fishing line. The rotation of the operation unit or operation means (hereinafter referred to as the operation unit) is transmitted to the spool 3 by transmission means such as gears, not shown.

[0021] Further, the fishing reel 1 according to an embodiment of the present invention has a clutch unit (clutch means), not shown, and the user can select to connect or release the power transmission to the spool 3 by operating the clutch unit (clutch means). In the state where the power transmission to the spool 3 is connected, winding by the operation unit is enabled. On the other hand, in the state where the power transmission to the spool 3 is released, the spool can be freely rotated in the forward and reverse directions, and the fishing line can be released.

[0022] Moreover, the fishing reel 1 according to an embodiment of the present invention may be provided with a drag unit or drag means (not shown) that prevents breakage of the fishing line by idling the spool 3 when a torque equal to or greater than a predetermined value occurs, and a reverse rotation prevention unit or reverse rotation prevention means (not shown) that prevents reverse rotation of the operation unit. Further, an oscillator device (not shown) that evenly winds up the fishing line by reciprocating the position of a fishing line guide portion that guides the fishing line according to the rotation of the spool 3 may be provided.

[0023] The spool 3 is rotatably supported by the reel body 2 with respect to the reel body 2, and when the spool 3 rotates in the forward direction, the fishing line can be wound around the outer peripheral region of the spool 3. On the other hand, when casting a lure or the like, the spool 3 rotates in the reverse direction, and the wound fishing line can be released. At this time, if the amount of fishing line released is much more than the moving amount of the lure or the like, a backlash called line entanglement may occur due to the excess fishing line, which may interfere with the normal use of the fishing reel 1. Therefore, an appropriate braking force is applied to the spool 3 by a braking unit 6 described later to prevent such a backlash.

[0024] The set plate 7 can be fixed to the frame 2. In the fishing reel 1 according to an embodiment of the present invention, by rotating a plurality of locking claws provided on a lock member (not shown), it has a bayonet structure that locks to a holding portion (not shown) provided on the frame 2, so that the spool 3 and the set plate 7 can be attached to and detached from the frame 2, but they may be fixed by methods such as screwing or adhesion.

[0025] By fixing the set plate 7 to the frame 2, the spool 3 is pivotally supported rotatably with respect to the frame 2. Further, the set plate 7 holds a fixed magnet 62 and a movable magnet (rotating magnet) 61 to constitute a braking portion described later. Further, the set plate 7, the middle lid 8, and the outer lid 14 constitute a side plate unit. Further, the middle lid 8 and the outer lid 14 constitute a watertight chamber and house electrical components such as a substrate 12, a battery 11, a motor 9, and a sensor (not shown) inside.

[0026] An annular rotating body-shaped driven portion (inductor rotor) 4 made of a non-magnetic conductor such as aluminum or copper is attached to the spool 3. A cylindrical rotating magnet 61 is disposed on the outer peripheral side of the driven portion (inductor rotor) 4, and a cylindrical fixed magnet 62 is disposed on the inner peripheral side of the driven portion (inductor rotor) 4.

[0027] The outer peripheral portion of the fixed magnet 62 is divided into N equal parts and magnetized with N poles and S poles alternately. Also, the inner peripheral portion of the rotating magnet 61 is divided into N equal parts and magnetized with N poles and S poles alternately. The magnetic field generated by the fixed magnet 62 and the rotating magnet 61 penetrates the driven portion (inductor rotor) 4 located therebetween. When the spool 3 rotates, eddy currents are generated in the driven portion (inductor rotor) 4, and a braking torque corresponding to the rotation speed acts. Here, the magnitude of the braking torque is proportional to the strength of the magnetic field and the rotation speed.

[0028] Thereby, when casting a lure or the like, a braking force can be applied to the spool 3, and by suppressing the occurrence of thread tangles during casting, the occurrence of thread entanglement can be prevented. By appropriately adjusting the positional relationship between the rotating magnet 61 and the fixed magnet 62, the magnetic field generated in the driven part (inductor rotor) 4 can be adjusted to obtain an appropriate braking force. The position of the rotating magnet 61 may be adjusted by the user with a dial, for example, or the position may be appropriately changed by a motor as in the braking part 6 of the fishing reel 1 according to an embodiment of the present invention.

[0029] Next, with reference to FIG. 2, an example of the structure of the braking part 6 in the fishing reel 1 according to an embodiment of the present invention will be described. As shown in the figure, the braking part 6 is composed of a rotating magnet 61 rotatably supported on a set plate 7 (not shown) and a fixed magnet 62 fixed to the set plate 7 (not shown). The rotating magnet 61 and the fixed magnet 62 form a magnetic circuit, and the magnetic field generated in the magnetic circuit is formed so as to penetrate the driven part (inductor rotor) 4 composed of a conductor. In this way, a braking force proportional to the strength of the magnetic field and the rotational speed of the spool 3 is generated in the driven part (inductor rotor) 4.

[0030] Also, the power generated by the motor 9 is transmitted to the rotating magnet 61 via a gear or the like, so that the rotating magnet 61 can be rotated. In this way, the rotating magnet 61 is moved to a predetermined position (moved from the state of FIG. 2(A) to the state of FIG. 2(B) by the rotation of the rotating magnet 61), and by adjusting the braking force applied to the driven part 4 fixed to the spool 3, the rotational speed of the spool 3 can be adjusted.

[0031] The fishing reel or the braking device of the fishing reel according to an embodiment of the present invention includes a driven part made of a conductor attached to a spool capable of winding a fishing line, and the driven part to a braking part that generates a braking force by applying a magnetic field, a detected part provided in the driven part, and a rotation detection sensor that detects the rotation of the spool by detecting the detected part.

[0032] According to the fishing reel or the braking device of the fishing reel according to an embodiment of the present invention, by integrating a member that generates a braking force and a detected means for detecting rotation, it is possible to avoid an increase in the size and cost of the device, and an increase in the inertia of the spool. It is possible to provide a braking device and a fishing reel equipped with the same.

[0033] Further, in the fishing reel or the braking device of the fishing reel according to an embodiment of the present invention, the rotation detection sensor is a reflective photosensor, and the detected portion is provided on the driven portion by performing two types of surface treatments with different reflectivities on the end surface of the driven portion.

[0034] Further, in the fishing reel or the braking device of the fishing reel according to an embodiment of the present invention, the rotation detection sensor is a transmissive photosensor, and the detected portion is configured to be provided on the driven portion by alternately providing a light-shielding portion and a transmissive portion on the driven portion.

[0035] Further, in the fishing reel or the braking device of the fishing reel according to an embodiment of the present invention, the rotation detection sensor is a capacitance type proximity sensor, and the detected portion is configured to be provided on the driven portion by forming a concave portion and a convex portion on the surface facing the rotation detection sensor.

[0036] In the fishing reel or the braking device of the fishing reel according to an embodiment of the present invention, the braking portion is composed of two cylindrical magnets facing each other in the radial direction of the braking portion (corresponding to the radial direction of the braking device in FIG. 2), and the rotation detection sensor is configured to be disposed between the two cylindrical magnets when viewed in the radial direction.

[0037] In the fishing reel or the braking device of the fishing reel according to an embodiment of the present invention, the braking force can be adjusted by moving at least one of the two cylindrical magnets by a motor.

[0038] Next, the method for detecting the rotation of the spool 3 will be described. In the fishing reel 1 according to an embodiment of the present invention, the rotational speed is detected using a known incremental rotary encoder that outputs a pulse signal a predetermined number of times each time the spool 3 makes one rotation, but it is not limited to this.

[0039] Next, with reference to FIG. 3, the detection unit (rotation detection sensor) in the fishing reel 1 according to an embodiment of the present invention will be described. FIG. 3 shows an example in which a reflective photosensor 20 is used as the detection unit (rotation detection sensor) 13. The reflective photosensor 20 is arranged with the light axes of the light projecting unit 16 and the light receiving unit 17 arranged side by side so as to be substantially parallel, and faces the detection unit (rotation detection sensor) 13. When light is projected from the light projecting unit 16 toward the detected section 15, the reflected light from the detected unit 15 can be received by the reflecting unit 17.

[0040] In the fishing reel 1 according to an embodiment of the present invention, as shown in FIG. 3, in order to form the detected unit 15, the end face of the driven unit (induct rotor) 4 is divided into N equal parts, and the surface is alternately painted light and dark to change the reflectance. The light part 19 is made of a metal surface or white painted. The dark part 18 is subjected to a surface treatment with a low reflectance such as black painting, black anodizing treatment, black plating treatment, or anti-reflection film attachment.

[0041] By arranging two reflective photosensors 20 (light projecting part 16, reflecting part 17) at positions facing the detected part 15, it is possible to detect the brightness and darkness of the surface facing each photosensor. Thereby, the rotation of the spool 3 can be detected. In the fishing reel 1 according to an embodiment of the present invention, with the brightness and darkness interval of the detected part 15 being 180°, the two photosensors are arranged 90° apart. Thereby, a signal of 4 pulses is output each time the spool 3 makes one rotation. By counting this number of pulses, the rotational movement amount of the spool 3 can be detected. Also, by counting the number of pulses generated within a predetermined time, the rotational speed of the spool 3 can be detected. By detecting the rotational movement amount and rotational speed of the spool, it is possible to appropriately determine the timing for applying braking force to the spool. Note that the type, number, position of the reflective photosensor 20, the shape, dimensions, number, formation method, etc. of the bright part and dark part can be considered in various ways and are not limited to a specific aspect.

[0042] The method for detecting spool rotation in the fishing reel 1 according to an embodiment of the present invention is not limited to the above method. Shown in FIG. 4 is an example in which a transmissive photosensor 21 is used as the detection part (rotation detection sensor) 13. The transmissive photosensor 21 is arranged to face each other such that the optical axes of the light projecting part 22 and the light receiving part 23 substantially coincide, and can detect the presence or absence of a light shielding object entering between the light projecting part 22 and the light receiving part 23.

[0043] In the fishing reel 1 according to an embodiment of the present invention, the part to be braked (inductor rotor) 4 is divided into N equal parts in the rotational direction, and slit shapes are provided alternately. In the slit part 24, the light emitted from the light projecting part 22 can pass through, and in the non-slit part (the part where no slit is provided) 25, the light emitted from the light projecting part 22 can be blocked.

[0044] transmission photo By arranging the part to be braked (inductor rotor) 4 between the light projecting part 22 and the light receiving part 23 of the sensor 21, a slit part is formed between the transmissive photosensors 21 24It is possible to detect whether there is [a certain condition]. Thereby, the rotation of the spool can be detected. In the fishing reel 1 according to an embodiment of the present invention, with the interval of the slits being 60°, two photosensors are arranged 30° apart. Thereby, a signal of 12 pulses is output every time the spool rotates once. Thereby, the same effect as in the case of FIG. 3 can be realized. Note that the type, number, position of the transmissive photosensor 21, the shape, dimensions, number, etc. of the slits can be considered in various ways and are not limited to a specific aspect.

[0045] Next, FIG. 5 shows an example in which a capacitance-type proximity sensor 26 is used as the detection unit (rotation detection sensor) 13. In the capacitance-type proximity sensor 26, the proximity of an object can be detected by detecting a change in capacitance due to the intrusion of the object into the electric field. In the fishing reel 1 according to an embodiment of the present invention, the driven part (induct rotor) 4 is equally divided into N in the rotational direction, and slits are alternately provided. When the slit part 27 faces the capacitance-type proximity sensor 26, since a sufficient interval can be formed between the capacitance-type proximity sensor 26 and the driven part (induct rotor) 4, the capacitance-type proximity sensor 26 can detect the slit part (a state where the driven part (induct rotor) 4 does not approach).

[0046] On the other hand, when the non-slit part 28 (a location without a slit) comes to a position facing the capacitance-type proximity sensor 26, the driven part (induct rotor) 4 enters the electric field generated by the capacitance-type proximity sensor 26. Therefore, by detecting the change in capacitance at that time, the proximity state of the driven part (induct rotor) 4 can be detected. In this way, the rotation of the spool can be detected.

[0047] In the fishing reel 1 according to an embodiment of the present invention, the interval between the slits is set to 60°, and the two capacitance-type proximity sensors 26 are arranged 30° apart. As a result, a signal of 12 pulses is output each time the spool rotates once. In this way, the same effect as in the case of FIG. 3 can be achieved. Note that the type, number, and position of the capacitance-type proximity sensors 26, the shape, dimensions, and number of the slits, etc. can be considered in various ways and are not limited to specific modes.

[0048] As described above, according to the fishing reel 1 according to an embodiment of the present invention, it is possible to give the driven part both the role of a member that receives an appropriate braking force on the spool by the braking part and the role of a detected means for detecting the rotation of the spool, and there is no need to separately provide the detected means. As a result, it is possible to accurately and effectively avoid the enlargement, high cost, and increase in the inertia of the spool of the fishing reel.

[0049] In addition, by avoiding an increase in the inertia of the spool, it is possible to increase the throwing distance and improve the operability when throwing a light lure. Further, since one component serves both as the detected means and the driven part, when using a plurality of replaceable spools with different diameters, the same type of inducto-rotor can be commonly used regardless of the type of spool, so that the compatibility can be improved.

[0050] Further, in the fishing reel 1 according to an embodiment of the present invention, by using the end face of the driven part as the detected part of the rotation detection sensor, the rotation detection sensor (photo sensor) can be arranged between the magnets in the radial direction of the braking part. As a result, since the substrate and the rotation detection part can be arranged close to each other, waterproof treatment can be easily performed. In addition, since the component for generating the braking force and the component for performing rotation detection can be arranged on the same side of the spool, it is easy to unitize the braking device. In particular, when a mechanism for driving the rotating magnet with a motor is adopted, remarkable effects are achieved in terms of ease of waterproof treatment and unitization of the braking device. Further, in the fishing reel 1 according to an embodiment of the present invention, since the detected part of the rotation detection sensor can be arranged between the rotating magnet and the fixed magnet, the driven part can have a smaller diameter than the rotating magnet. As a result, even in a state where the diameter of the spool is small and there is no space on the outer diameter side of the rotating magnet, the detected part of the rotation detection sensor can be arranged on the same side as the braking part (braking means). Further, in the fishing reel 1 according to an embodiment of the present invention, a photo sensor or a capacitance type proximity sensor can be used as the detection part. As a result, unlike the case where a magnetic sensor is used as the detection part, since it is not affected by the magnetic field of the braking part, stable rotation detection can be performed.

[0051] The dimensions, materials, and arrangements of the respective components described in this specification are not limited to those explicitly described in the embodiments, and each of these components can be modified to have any dimensions, materials, and arrangements that can be included in the scope of the present invention. Further, components not explicitly described in this specification can be added to the described embodiments, or a part of the components described in each embodiment can be omitted.

Description of Reference Numerals

[0052] 1 Fishing reel 2 Frame (reel body) 3 Spool 4 Driven part (driven means) 5 Bearing 6 Braking part (braking means) 7 Set plate 8 Middle Cover 9 Motor 10 Reduction Mechanism (Reduction Gear Train) 11 Battery 12 Control Board 13 Detection Unit (Rotation Detection Sensor) 14 Reverse Operation Unit Side Cover 20 Reflective Photo Sensor 21 Transmissive Photo Sensor 22 Light Projection Unit 23 Light Reception Unit 24 Slit Part 25 Non-Slit Part 26 Capacitive Proximity Sensor 27 Slit Part 28 Non-Slit Part 61 Rotating Magnet 62 Fixed Magnet

Claims

1. A braking part made of a conductor attached to a spool capable of winding a fishing line, a braking part that generates a braking force by applying a magnetic field to the braking part, a detected part provided on the braking part, and a rotation detection sensor that detects the rotation of the spool by detecting the detected part, the braking part is formed so as to protrude from the spool to the outside in the axial direction of the spool, and the detected part is formed on the protruding end surface of the braking part, the braking part serves as a member that generates a braking force on the spool by the braking part and also serves as a detection target part used for detecting the rotation of the spool, and a braking device for a fishing reel characterized by this.

2. The rotation detection sensor is a reflection type photosensor, and the detected part is provided on the braking part by forming two types of surfaces with different reflectivities on the end surface of the braking part. The braking device for a fishing reel according to Claim 1.

3. The rotation detection sensor is a transmissive photosensor, and the detected part is provided on the braking part by alternately providing a light-shielding part and a transmissive part on the braking part. The braking device for a fishing reel according to Claim 1.

4. The rotation detection sensor is a capacitance type proximity sensor, and the detected part is provided on the braking part by forming a concave part and a convex part on the surface facing the rotation detection sensor. The braking device for a fishing reel according to Claim 1.

5. The braking part is composed of two cylindrical magnets facing each other in the radial direction of the braking part, and the rotation detection sensor is arranged between the two cylindrical magnets when viewed in the radial direction. The braking device for a fishing reel according to any one of Claims 1 to 4.

6. The braking part is configured to be able to adjust the braking force by moving at least one of the two cylindrical magnets by a motor. The braking device for a fishing reel according to Claim 5.

7. A fishing reel having the braking device according to any one of Claims 1 to 6.

8. A braking part made of a conductor attached to a spool capable of winding a fishing line, a braking part that generates a braking force by applying a magnetic field to the braking part, a detected part provided on the braking part, and a rotation detection sensor that detects the rotation of the spool by detecting the detected part, The braking part has two opposing cylindrical magnets when viewed in the radial direction of the braking part. The rotation detection sensor is provided between the two cylindrical magnets when viewed in the radial direction of the braking part, and is a braking device for a fishing reel.

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