Brake device and fishing reel
The fishing reel incorporates a dual-braking system with an electromagnetic and friction braking unit, adjustable by a single member, to address the challenge of providing optimal braking force across a wide speed range, thus improving casting distance and preventing backlash.
Patent Information
- Application Number
- JP2023194186
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-15
- Publication Date
- 2025-05-27
AI Technical Summary
Existing fishing reels struggle to provide an optimal braking force across a wide speed range, leading to challenges in improving casting distance and preventing backlash, especially during high-speed casting and low-speed landing.
A fishing reel with an integrated braking device that combines an electromagnetic braking unit and a friction braking unit, both adjustable by a single adjusting member, allowing for optimal braking force adjustment across a wide speed range.
The solution enables the fishing reel to achieve miniaturization and cost reduction while providing a consistent and optimal braking force, thereby enhancing casting distance and preventing backlash effectively across various speed conditions.
Smart Images

Figure 2025080850000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a braking device and a fishing reel.
Background Art
[0002] Conventionally, in a fishing reel, as a means for preventing backlash, an eddy current type braking means in which the braking force varies according to the rotation of the spool and a friction type braking means that is almost independent of the rotation of the spool are adjusted by separate members, respectively.
[0003] For example, in Patent Document 1, a reel body having a frame with left and right side frames, a handle disposed on one of the left and right side frames of the frame, side plates respectively disposed on the left and right side frames of the frame, and a spool rotatably supported between the side plates is provided. A braking device capable of adjusting the rotational braking force of the spool is disposed between the side frame and the side plate on the anti-handle side. The braking device has a plurality of operation parts respectively operated by a fisherman to adjust the rotational braking force of the spool, and a plurality of visual recognition parts for allowing the fisherman to visually recognize the adjustment state of the operation parts. The side plate on the anti-handle side has a window portion on the outer surface, and a fisherman holding the reel body can visually recognize the plurality of visual recognition parts through the window portion from the outside of the side plate. The visual recognition parts and the operation parts exposed in the window portion are arranged in a non-projecting state with respect to the outer surface of the side plate, and a fishing reel is disclosed.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] Generally, the braking means aims to provide an optimal braking force within a wide speed range in order to improve the casting distance and prevent backlash. However, in scenarios where braking of the spool is required, particularly, immediately after reaching the maximum speed during casting when a large braking force is desired to prevent backlash, or at low speeds before landing when a small braking force is desired to extend the casting distance, or when landing where a large braking force is desired, can be considered.
[0006] However, in any fishing reel including the fishing reel according to Patent Document 1, it has not been possible to achieve both an improvement in casting distance and prevention of backlash in all of the above scenarios. In many cases, during landing when a large braking force is desired, a landing sampling operation by the angler becomes essential. When night fishing or when the lure is lost, it is difficult to perform at the optimal timing. With conventionally known methods, there has been a problem that it is difficult to accurately and surely achieve an improvement in casting distance and prevention of backlash by providing an optimal braking force within a wide speed range.
[0007] The present invention has been made in view of the above circumstances, and its object is to provide a braking device and a fishing reel that can not only achieve miniaturization and cost reduction, but also provide an optimal braking force within a wider speed range, and more surely achieve an improvement in casting distance and prevention of backlash. Other objects of the present invention will become apparent by referring to the entire specification.
Means for Solving the Problems
[0008] A fishing reel according to an embodiment of the present invention includes a spool capable of winding a fishing line, a reel body rotatably supporting the spool, a winding portion operable to wind the spool in the winding direction, a switching portion capable of switching whether the spool can be released, an electromagnetic braking portion for electromagnetically braking the spool, a friction braking portion for applying a frictional force to the spool, and an adjusting member for adjusting the braking force applied to the spool. The adjusting member is configured to be able to adjust both the electromagnetic braking portion and the friction braking portion.
[0009] In a fishing reel according to an embodiment of the present invention, the electromagnetic braking unit includes an electromagnetically braked member provided on the spool, a magnetic force generating member provided on the fishing reel that generates a magnetic force to the electromagnetically braked member, and a magnetic force adjusting mechanism that changes the magnetic force generated by the magnetic force generating member to the electromagnetically braked member as the adjusting member moves.
[0010] In a fishing reel according to an embodiment of the present invention, the magnetic force generating member is a permanent magnet.
[0011] In a fishing reel according to an embodiment of the present invention, the friction braking unit includes a friction member provided on the spool, a contact member that contacts the friction member, an elastic member that holds the contact member, and an elastic force adjusting mechanism that changes the amount of deformation of the elastic member as the adjusting member moves.
[0012] A fishing reel according to an embodiment of the present invention is configured to include a driving unit that adjusts the position of the adjusting member and a control unit that controls the driving unit.
[0013] In a fishing reel according to an embodiment of the present invention, the driving unit is a motor or an actuator, and the control unit is a microcomputer.
[0014] In a fishing reel according to an embodiment of the present invention, when the braking force of the electromagnetic braking unit is in the minimum state, the contact member does not contact the friction member, and when the braking force of the electromagnetic braking unit is in the maximum state, the amount of deformation of the elastic member is maximized.
[0015] A braking device according to an embodiment of the present invention includes an electromagnetic braking unit that electromagnetically brakes a spool of a fishing reel, a friction braking unit that applies a frictional force to the spool, and an adjusting member that adjusts the braking force to the spool, and the adjusting member is configured to be able to adjust both the electromagnetic braking unit and the friction braking unit.
Advantages of the Invention
[0016] According to the above embodiment, it is possible to provide a braking device and a fishing reel that not only achieve miniaturization and cost reduction, but also provide optimal braking force in a wider speed range, and more reliably realize an improvement in casting distance and prevention of backlash.
Brief Description of the Drawings
[0017]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Best Mode for Carrying Out the Invention
[0018] Hereinafter, embodiments of the braking device and the fishing reel according to the present invention will be specifically described with reference to the accompanying drawings. The same reference numerals are given to common components in a plurality of drawings throughout the plurality of drawings. Note that each drawing is not necessarily drawn to an exact scale for convenience of explanation.
[0019] The fishing reel in the present invention is of a type called a so-called double-bearing reel. First, the configuration of a general double-bearing reel including the fishing reel of the present invention, the causes of backlash generation, and its prevention method will be briefly described.
[0020] In such a double-bearing reel, a spool around which a fishing line can be wound is rotatably supported with respect to a fishing reel main body (frame). The user can rotate the spool in the forward direction (winding direction) by operating means such as a conventionally known handle, and thereby wind the fishing line around the spool. The double-bearing reel has a known clutch (not shown) and can transmit a driving force from the operating means to the spool 2 in the connected state. On the other hand, in the disengaged state, the spool is in a freely rotatable state, and in this state, by applying an external force to the fishing line, the spool can be rotated in the releasing direction.
[0021] At this time, if the rotation speed of the spool exceeds the release speed of a projectile such as a lure, line twist occurs, and when the amount of line twist increases, backlash occurs. In order not to generate backlash, a braking force is generated in the spool by a braking device. However, if this braking force is too large, it will lead to a decrease in the casting distance. On the other hand, if the braking force is too small, the risk of backlash increases.
[0022] Next, with reference to FIG. 1, the braking device according to an embodiment of the present invention and the braking device included in the fishing reel will be described.
[0023] As shown in FIG. 1, the braking device 7 included in the fishing reel 1 and the braking device 7 according to an embodiment of the present invention includes an electromagnetic braking unit (electromagnetic braking means) 71 that applies an electromagnetic braking force to the spool 2, and a friction braking unit (friction braking means) 72 that contacts the spool 2 and applies a braking force by frictional force.
[0024] The electromagnetic braking unit 71 is generally called an eddy current brake, and includes an inductor rotor (member to be braked) 21 made of a conductor such as aluminum provided integrally with the spool 2, and a permanent magnet 711 provided on the reel body. When the spool 2 rotates, eddy currents are generated on the inductor rotor 21 by the magnetic field created by the permanent magnet 711. As a result, a braking torque proportional to the rotational speed and the strength of the magnetic field on the inductor rotor is generated on the spool 2.
[0025] The friction braking unit 72 includes a friction member 22 provided on the spool 2, a contact member 721 that contacts the friction member 22, and an elastic member 722 that biases the contact member 721. A frictional force (Coulomb friction) proportional to the biasing force of the elastic member 721 is generated on the friction member 22. As a result, a braking torque that does not depend on the rotational speed is generated on the spool 2.
[0026] The adjustment member 73 can simultaneously adjust the braking torques of both the electromagnetic braking unit 71 and the friction braking unit 72. In the braking device 7 included in the fishing reel 1 and the braking device 7 according to an embodiment of the present invention, the adjustment member 73 is rotatably supported within a certain range (for example, from 0° to 180°) with respect to the reel body 3. Then, in response to the rotation of the adjustment member 73, by moving the permanent magnet 711 of the electromagnetic braking unit 71, the strength of the magnetic field acting on the inductor rotor 21 also changes. At the same time, in response to the rotation of the adjustment member 73, the amount of deformation of the elastic member is also changed by a predetermined mechanism 723. As a result, in response to the rotation of the adjustment member 73, the braking torques of both the electromagnetic braking unit 71 and the friction braking unit 72 can be adjusted.
[0027] At this time, it is preferable to set the electromagnetic braking unit 71 to generate the maximum braking torque and also set the friction braking unit 72 to generate the maximum braking torque. Further, in a state where the electromagnetic braking unit 71 generates the minimum braking torque, it is preferable to set the contact member 721 not to contact the friction member 21.
[0028] Next, with reference to FIG. 2, the characteristics of the braking torque and the spool speed of the electromagnetic braking unit (FIG. 2(A)), the characteristics of the braking torque and the spool speed of the friction braking unit (FIG. 2(B)), and the characteristics of the braking torque and the spool speed of the braking device of the present invention (FIG. 2(C)) will be described respectively. Also, with reference to FIG. 8, the relationship between the braking torque of the electromagnetic braking unit and the position θ of the adjustment member (FIG. 8(A)), the relationship between the braking torque adjustment member of the friction braking unit and the position θ (FIG. 8(B)), and the relationship between the braking torque adjustment member of the braking device and the position θ (FIG. 8(C)) will be described respectively.
[0029] The braking torque by the electromagnetic braking unit 71 is proportional to the spool speed and the strength of the magnetic field generated in the induction rotor 21. When the strength of the magnetic field is configured to be proportional according to the position of the adjustment member 73, the braking torque on the spool 2 has the characteristics as shown in FIG. 2(A). The braking torque by the friction braking unit does not depend on the spool speed and generates a braking force braking torque proportional to the normal force generated in the friction member 21. Therefore, the braking torque by the friction braking unit 72 has the characteristics as shown in FIG. 2(B). Note that in a state where the contact member 721 does not contact the friction member 22, the braking torque by the friction braking unit becomes 0. Utilizing this, when the position θ when the contact member 721 contacts the friction member 22 is θ1°, and when the position θ of the adjustment member is smaller than θ1°, the contact member 721 is in a non-contact state, and as the position becomes the same as or larger than θ1°, if it is configured such that the biasing force of the elastic member 722 increases, it can be configured to have the characteristics as shown in FIG. 8(B).
[0030] Figure 2(C), which is obtained by combining the braking torque by the electromagnetic braking unit shown in Figure 2(A) and the braking torque by the friction braking unit shown in Figure 2(B), represents the characteristics of the braking torque of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention. In this way, by changing the position of the adjustment member, the characteristics of the braking torque can be greatly changed.
[0031] The effects of the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1 will be described. In the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, it is possible to generate both a braking torque by eddy current, which is a non-contact force, and a braking torque by frictional force, which is a contact force, with respect to the spool 2, and the amount thereof can be adjusted by one adjustment member 73, and it can be a braking means having the advantages of both braking torques.
[0032] Here, since the braking torque by eddy current is a non-contact force, it has the advantages of being able to avoid the influence of wear and being able to avoid the influence of wetness, etc., because it does not depend on the surface friction coefficient. On the other hand, since the braking torque becomes small at low speeds, there is a disadvantage that when backlash occurs at low speeds, the required braking force braking torque cannot be obtained. Since the braking torque by contact frictional force can be regarded as Coulomb frictional force, a substantially constant braking force braking torque can be generated both at low speeds and at high speeds. Therefore, even when backlash occurs at low speeds, the required braking force braking torque can be applied.
[0033] According to the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, when the spool speed is low, the required braking force braking torque can be mainly ensured by the friction braking part. Also, when the spool speed is high, the required braking force braking torque can be mainly ensured by the electromagnetic braking part. Thereby, a predetermined braking force braking torque can be ensured over a wide range of spool speeds. Further, since the required braking torque can be generated by both the friction braking part and the electromagnetic braking part, the torque capacity required for each braking part can be made smaller than in the case of a single configuration. Thereby, miniaturization, high durability, low cost, etc. of each braking part can be realized.
[0034] When only the electromagnetic braking part is generating, the braking force is proportional to the product of the spool speed and the magnetic force acting on the induction rotor. Therefore, as shown in FIG. 8, when the spool speed is low, a large braking force cannot be applied regardless of the position θ of the adjustment member. On the other hand, when both the electromagnetic braking part and the friction braking part are working, as in the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, even when the spool speed is small, a sufficient braking torque can be generated by the friction braking part. Also, by adjusting the position of the adjustment member, in a situation where braking torque is not required, the braking torque can be lowered and the flying distance of a thrown object such as a lure can be increased.
[0035] Also, compared to the case of generating the required braking torque only by the friction braking part, there are advantages such as being less likely to be affected by wear and being less dependent on the surface friction coefficient. When the braking torque of two braking devices can be adjusted by one adjustment member, as in the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, it is not necessary to adjust each braking device independently. This is because, when used as a casting brake of a fishing reel, there are almost no demerits due to the inability to control independently.
[0036] In a situation where braking torque is required, both the friction braking part and the electromagnetic braking part may increase the braking torque. In a situation where braking torque is not required, both the friction braking part and the electromagnetic braking part may reduce the braking torque. On the other hand, by adjusting the two braking torques with a single adjusting member, the required number of adjusting members can be one, and the miniaturization and cost reduction of the entire device can be achieved.
[0037] As shown in FIG. 1, the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1 may be more preferably position-controlled by the motor 9. Further, it may further include a motor 9 for driving the adjusting member and a control means (microcomputer) 11 for controlling the motor 9. In that case, a speed reduction mechanism may be provided between the motor and the adjusting member as necessary. Further, a sensor for detecting the position of the adjusting member may be provided so that the position of the adjusting member can be accurately positioned sequentially by feedback control or the like.
[0038] Thereby, the characteristics of the braking torque of the braking device can be adjusted even during casting. A detection unit (detection means) for detecting the speed of the spool and the amount of line twist generated as necessary, and a motion sensor for detecting the user's fishing rod operation are provided, and the braking torque is adjusted according to the detected amount, so that it is easy to optimize the braking torque. In this case, according to the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, as shown in FIGS. 2(C) and 8(C), the range in which the braking torque can be set by adjusting the position of the adjusting member can be widened. In this way, it is possible to optimize the braking torque under various situations.
[0039] Also, like the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, by adjusting the two braking torques with a single adjusting member, the required number of motors and motor drivers can be one, and the miniaturization and cost reduction of the entire device can be achieved, and the control program can also be simplified.
[0040] Next, with reference to FIG. 3, a specific example of casting a projectile such as a lure using the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention will be described. FIG. 3 shows the change over time of the spool rotation speed when casting a projectile such as a lure. The vertical axis represents the rotation speed of the spool, and the horizontal axis represents time.
[0041] Here, the process from casting the lure until it hits the water will be described by dividing it into four regions: (1) acceleration region, (2) maximum speed region, (3) cruising region, and (4) water entry region. First, in the (1) acceleration region, when the user swings the fishing rod, the projectile (e.g., a lure, etc.) receives tension from the fishing line and is given an initial velocity. After that, at an appropriate timing, when the user makes the spool freely rotatable, the spool receives tension from the fishing line and starts to rotate. As long as the amount of fishing line released from the spool does not exceed the speed of the lure, the spool continues to be tensioned by the fishing line and continues to accelerate. During this time, the lure gradually changes its trajectory due to the tension from the fishing line. This acceleration region often lasts from 80 to 150 ms after the start of casting (cast). Also, in this acceleration region, since the spool always receives tension from the lure, no line twist occurs, and there is no need to generate a large braking torque on the braking device.
[0042] Next, in the (2) maximum speed region, the spool continues to receive tension from the fishing line, and eventually, the flying speed of the lure and the release speed of the fishing line balance out. At this time, the spool reaches its maximum speed. The maximum speed of the spool is often around 10,000 to 40,000 rpm depending on the conditions in the case of a general double-bearing reel. If no braking torque is generated on the spool, the tension in the fishing line at this time becomes zero. After casting, while the lure continues to decelerate due to air resistance and the like, the spool continues at its maximum speed due to inertia. As a result, the release speed of the fishing line exceeds the flying speed of the lure, and line twist or backlash occurs. Since the speed of the spool is at its maximum, the backlash generated at this timing tends to grow rapidly. To prevent this, a braking torque is generated on the spool by the braking device.
[0043] It is desirable that the braking torque be approximately equal to the air resistance on the lure and fishing line multiplied by the spool radius. Since the air resistance on the lure increases as the flight speed increases, the required braking torque also increases according to the flight speed of the lure. Also, the required braking torque is easily affected by various factors such as the posture, trajectory, weight, shape of the lure, the way of swinging and characteristics of the fishing rod, and the influence of the wind, so it is easily influenced by conditions. In the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, the braking torque generated in such a case is mainly generated by the electromagnetic braking unit. Thereby, even if the flight speed of the lure changes, the braking torque also changes accordingly, so that it is easy to optimize the braking torque according to the position of the same setting member.
[0044] Next, in the (3) cruising region, after reaching the maximum speed, the lure continues to make an oblique throw while receiving air resistance and gravity, and the spool continues to decelerate by the braking device. If the braking torque becomes too large, the lure receives tension from the fishing line backward, so the casting distance becomes short. If the braking torque becomes too small, the fishing line release speed from the spool exceeds the flight speed of the lure, resulting in line twist or backlash. For these reasons, it is desirable that the braking torque be approximately equal to the air resistance on the lure and fishing line in this case as well. Since the air resistance on the lure increases as the flight speed increases, the required braking torque also increases according to the flight speed of the lure. Therefore, it is desirable to generate the braking torque mainly by the electromagnetic braking unit even in the cruising region.
[0045] Next, in the (4) water entry area, when the lure hits the water and the ground, the lure receives a large resistance force from the water surface or the ground and decelerates rapidly. When using a general reel, it often hits the water about 1 to 4 seconds after the start of casting, and in that case, the spool speed often becomes about 2000 to 5000 rpm, and the spool continues to rotate due to inertia. Therefore, if the spool is not braked, line tangles or backlash will occur. In the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, it is preferable to generate a braking torque mainly by the friction braking portion. Thereby, even when the spool speed becomes low as in the case of water entry, sufficient braking torque can be obtained.
[0046] In the conventional braking device, it was necessary for the user to visually observe the water entry and apply braking with a finger (perform a thumbing operation), or to apply a large braking force (braking torque) in advance. When the user performs a thumbing operation, there is a problem that the casting distance is impaired or backlash occurs depending on the skill. In particular, at night, in bad weather, when casting a lure far, it may be difficult to visually observe the water entry, and it was difficult to optimize the braking torque in such cases. Also, if the braking torque is generated so that backlash does not occur even at the time of water entry, a large braking torque is required over the entire range of casting, and there is a problem that the casting distance is impaired.
[0047] On the other hand, in the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, when it is detected that the lure hits the water, such as detecting that the speed of the spool has become equal to or lower than a predetermined value, the position of the adjustment member can be adjusted to generate a large braking torque. Thereby, it is possible to effectively suppress the occurrence of backlash at the time of water entry without performing a thumbing operation at the time of water entry. Thus, in the braking device 7 according to an embodiment of the present invention and the braking device 7 provided in the fishing reel 1, since the braking torques of both the electromagnetic braking portion and the friction braking portion can be adjusted by one adjustment member, it is possible to optimize the braking torque according to various situations.
[0048] Further, by configuring the adjusting member in the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention to be positionally adjusted by a motor, it is possible to generate necessary braking torque at any time even during casting, so that it is possible to achieve both an extended flight distance and prevention of backlash in a wide range.
[0049] Next, with reference to FIGS. 4 and 5, a specific configuration example of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention is shown. FIG. 4 shows an exploded perspective view of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention, taken along a plane passing through the spool rotation axis after assembly. FIG. 5(A) shows the case where the braking force is maximum, and FIG. 5(B) shows the case where the braking force is minimum.
[0050] The fishing reel 1 provided with the braking device 7 according to an embodiment of the present invention includes a spool 2, a fixing member (set plate) 8, electromagnetic braking means 71, an induct rotor 21, a fixed magnet 711A, a rotating magnet 711B, a magnet gear 73, a friction braking part 72, a contact member 721, a straight moving member 723, a biasing spring 722, a guide rod 724, a cap 81, and a motor 9.
[0051] The spool 2 is a substantially cylindrical body, and a fishing line can be wound around the outer peripheral portion. Further, it is pivotally supported so as to be rotatable with respect to the fixing member 8. An induct rotor 21 described later is fixed to the end face, and it has a friction braking surface 22. The friction braking surface 22 is preferably made of a material having properties such as wear resistance, a high friction coefficient, and little variation in the friction coefficient, and felt impregnated with grease, carbon fiber, metal, resin, etc. are suitable. The fixing member 8 and the cap 81 are structural members fixed to the reel body 3. By arranging the magnet gear 73 and the straight moving member 723 between the fixing member 8 and the cap 81, the magnet gear 73 is held rotatably and the straight moving member 723 is held translatably.
[0052] The induction rotor 21 has a generally cylindrical shape and is made of a non-ferrous metal such as aluminum or copper. The fixed magnet 711A is configured in a cylindrical shape. It is fixed to the fixed member 8 and is circumferentially divided into N parts (for example, 6 parts) and magnetized alternately with N poles and S poles. The fixed magnet 711A is coaxially arranged inside the induction rotor 21 with a predetermined gap therebetween. The rotating magnet 711B is configured in a cylindrical shape, is fixed to the magnet gear 73, and is circumferentially divided into N parts (for example, 6 parts) and magnetized alternately with N poles and S poles. The rotating magnet 711B is coaxially arranged outside the induction rotor 21 with a predetermined gap therebetween.
[0053] The magnet gear 73 is rotatably supported with respect to the fixed member 8. The magnet gear 73 corresponds to an adjustment member in the fishing reel 1 provided with the braking device 7 according to an embodiment of the present invention. As shown in FIG. 5(A), when the rotating magnet 711A and the fixed magnet 711B face each other with opposite poles, the strength of the magnetic field passing through the induction rotor 21 is maximized. Further, as shown in FIG. 5(B), when the position of the magnet gear 73 is adjusted so that the rotating magnet 711A and the fixed magnet 711B face each other with the same poles, the strength of the magnetic field passing through the induction rotor 21 is minimized.
[0054] The magnet gear 73 can be driven and rotated by a motor (not shown). By controlling the position of the motor by a conventionally known means, the strength of the eddy current brake acting on the induction rotor 21 can be adjusted. Note that the magnet gear 73 may be directly position-adjustable by the user using an operation unit (operation means) such as a dial.
[0055] The straight - moving member 723 is supported so as to be axially movable relative to the fixed member 8 by guiding the guide rod 724 held by the fixed member 8 into the guide hole 7233. Further, the straight - moving member 723 has a spiral cam 7231 provided on its side surface (in the example shown in FIG. 4, it is provided at three locations every 120°). This spiral cam 7231 follows the follower 731 provided on the outer periphery of the magnet gear 73. Thereby, it translates axially in accordance with the rotation of the magnet gear 73. The straight - moving member 723 has a contact - member holding portion 7232 (in the example shown in FIG. 4, it is provided at three locations every 120°). Inside the contact - member holding portion 7232, a biasing spring 722 and a contact member 721 can be accommodated.
[0056] As shown in FIG. 5(A), when the straight - moving member 723 is in the forward axial direction, the contact member 721 contacts the friction braking surface 22 provided on the spool end face, and the deformation amount of the biasing spring 722 is maximum. Therefore, the braking force applied by the contact member 721 to the spool 2 is maximum. When the straight - moving member 723 is gradually moved rearward from that state, the deformation amount of the biasing spring 722 gradually becomes smaller, and accordingly the braking force also becomes smaller. When the straight - moving member 723 is further moved rearward, as shown in FIG. 5(B), the contact member 721 separates from the friction braking surface 22, and the braking force becomes zero.
[0057] The braking force by the eddy - current brake and the braking force by the frictional force can both be adjusted according to the position of the magnet gear 73. That is, the magnet gear 73 corresponds to the position - adjusting member, and the above - described effects can be realized. Note that the adjustment methods of the adjusting member and the electromagnetic braking means, and the adjustment methods of the adjusting member and the friction brake are not limited to the examples of the present embodiment.
[0058] Another adjustment method of the electromagnetic braking means is shown in FIG. 6. In this example, the width of the axial gap between one pole of the permanent magnet 712 and the spool 2 is adjusted by a pinion gear (not shown) provided on the adjustment member 173 and a rack gear (not shown) provided on the permanent magnet 712. Thereby, since the strength of the magnetic field on the spool can be adjusted, the electromagnetic braking force can be adjusted. The motor 9 and the control means (microcomputer) 11 are as described above, and the description thereof is omitted here.
[0059] Next, with reference to FIG. 7, another adjustment method of the friction braking part (friction braking means) of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention will be described. FIG. 7 is a cross-sectional view of the friction braking part taken along a plane orthogonal to the spool rotation axis and broken, and FIG. 7(A) shows a state where the braking force is minimum, and FIG. 7(b) shows a state where the braking force is maximum.
[0060] In another adjustment method of the friction braking part (friction braking means) of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention, the contact member (elastic deformation part) 1721 is configured as an elastically deformable cantilever beam. One end of the contact member 1721 (cantilever beam) is connected to the rotation shaft 1621, and the rotation shaft 1621 is connected by a gear or the like (not shown) so as to rotate in conjunction with the rotation of the adjustment member 1073. Further, the other end of the contact member 1721 (cantilever beam) can come into contact with a friction braking member 1521 provided on a part of the spool (not shown).
[0061] When the position of the adjustment member 1073 is adjusted to the minimum braking state, as shown in FIG. 7(A), the contact member 1721 moves to a position where it does not contact the friction braking member 1521. On the other hand, when the position of the adjustment member 1073 is adjusted to the maximum braking state, as shown in FIG. 7(B), the contact member 1721 contacts the friction braking member 1521, and the elastic deformation amount as a cantilever beam becomes maximum. In this way, the maximum friction braking torque is generated in the friction braking member 1521.
[0062] In another adjustment method of the friction braking part (friction braking means) of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention, a mechanism that generates a contact force in the radial direction of the spool (not shown) may be used. In that case, similar to another adjustment method of the friction braking part (friction braking means) of the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the invention, by arranging a plurality of contact members 1721 at equal intervals in the circumferential direction as much as possible, it is possible to generate braking force in a well-balanced manner without causing an excessive load on the rotating shaft.
[0063] Thus, as an adjustment method of the electromagnetic braking part (electromagnetic braking means) by the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention, other methods are also conceivable. For example, it can also be realized by a mechanism that moves a part of the permanent magnet. Further, as an adjustment method of the friction braking part (friction braking means) by the braking device 7 provided in the braking device 7 and the fishing reel 1 according to an embodiment of the present invention, other methods are also conceivable. For example, it can also be realized by a mechanism that adjusts the vertical resistance acting on the spool. A method of adjusting both the electromagnetic braking part and the friction braking part by one adjustment member can be realized by a combination of the above mechanisms.
[0064] A fishing reel according to an embodiment of the present invention includes a spool capable of winding a fishing line, a reel body that rotatably supports the spool, a winding part capable of operating the spool in the winding direction, a switching part capable of switching whether the spool can be released, an electromagnetic braking part that electromagnetically brakes the spool, a friction braking part that applies a frictional force to the spool, and an adjustment member that adjusts the braking force to the spool, and the adjustment member is configured to be able to adjust both the electromagnetic braking part and the friction braking part.
[0065] In a fishing reel according to an embodiment of the present invention, the electromagnetic braking unit includes an electromagnetically braked member provided on the spool, a magnetic force generating member provided on the fishing reel that generates a magnetic force to the electromagnetically braked member, and a magnetic force adjusting mechanism that changes the magnetic force generated by the magnetic force generating member to the electromagnetically braked member as the adjusting member moves.
[0066] In a fishing reel according to an embodiment of the present invention, the magnetic force generating member is a permanent magnet.
[0067] In a fishing reel according to an embodiment of the present invention, the friction braking unit includes a friction member provided on the spool, a contact member that contacts the friction member, an elastic member that holds the contact member, and an elastic force adjusting mechanism that changes the amount of deformation of the elastic member as the adjusting member moves.
[0068] A fishing reel according to an embodiment of the present invention is configured to include a drive unit that adjusts the position of the adjusting member and a control unit that controls the drive unit.
[0069] In a fishing reel according to an embodiment of the present invention, the drive unit is a motor or an actuator, and the control unit is a microcomputer.
[0070] In a fishing reel according to an embodiment of the present invention, when the braking force of the electromagnetic braking unit is in the minimum state, the contact member does not contact the friction member, and when the braking force of the electromagnetic braking unit is in the maximum state, the amount of deformation of the elastic member is maximized.
[0071] A braking device according to an embodiment of the present invention includes an electromagnetic braking unit that electromagnetically brakes a spool of a fishing reel, a friction braking unit that applies a frictional force to the spool, and an adjusting member that adjusts the braking force to the spool, and the adjusting member is configured to be able to adjust both the electromagnetic braking unit and the friction braking unit.
[0072] The dimensions, materials, and arrangements of each component 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 within the scope of the present invention. Also, components not explicitly described in this specification can be added to the described embodiments, or some of the components described in each embodiment can be omitted.
Explanation of Reference Numerals
[0073] 1 Fishing reel 3 Spool 4 Reel body 7 Braking device 8 Fixing member (set plate) 9 Motor 11 Control means (microcomputer) 21 Inductor rotor 71 Electromagnetic braking part 72 Friction braking part 73 Adjusting member (magnet gear) 81 Cap 711 Permanent magnet 721 Contact member 722 Biasing spring 723 Rectilinear member 724 Guide rod
Claims
1. A spool capable of winding a fishing line, a reel body rotatably supporting the spool, a winding portion capable of operating the spool in the winding direction, a switching portion capable of switching the releaseability of the spool, an electromagnetic braking portion for electromagnetically braking the spool, a friction braking portion for applying a frictional force to the spool, and an adjusting member for adjusting the braking force applied to the spool, wherein the adjusting member is capable of adjusting both the electromagnetic braking portion and the friction braking portion. A fishing reel characterized by this.
2. The electromagnetic braking portion includes an electromagnetically braked member provided on the spool, a magnetic force generating member provided on the fishing reel for generating a magnetic force to the electromagnetically braked member, and a magnetic force adjusting mechanism for changing the magnetic force generated by the magnetic force generating member to the electromagnetically braked member as the adjusting member moves. The fishing reel according to Claim 1.
3. The magnetic force generating member is a permanent magnet. The fishing reel according to Claim 2.
4. The friction braking portion includes a friction member provided on the spool, a contact member in contact with the friction member, an elastic member for holding the contact member, and an elastic force adjusting mechanism for changing the amount of deformation of the elastic member as the adjusting member moves. The fishing reel according to Claim 1.
5. A driving portion for adjusting the position of the adjusting member, and a control portion for controlling the driving portion. The fishing reel according to Claim 1.
6. The driving portion is a motor or an actuator, and the control portion is a microcomputer. The fishing reel according to Claim 5.
7. When the braking force of the electromagnetic braking portion is in the minimum state, the contact member does not contact the friction member, and when the braking force of the electromagnetic braking portion is in the maximum state, the amount of deformation of the elastic member is maximized. The fishing reel according to Claim 4.
8. An electromagnetic braking portion for electromagnetically braking a spool of a fishing reel, a friction braking portion for applying a frictional force to the spool, and an adjusting member for adjusting the braking force applied to the spool, wherein the adjusting member is capable of adjusting both the electromagnetic braking portion and the friction braking portion. A braking device characterized by this.
Citation Information
Patent Citations
Fishing reel
JP2012147740A