Fishing reel

Abstract

The present application provides a fishing reel capable of realizing a small and light reel body, facilitating installation, and obtaining stable clutch operation. Specifically, in the fishing reel, a one-way clutch that allows rotation of a rotating drive shaft in one direction and prevents rotation in the other direction is incorporated. The one-way clutch has an assembly structure that includes an inner ring, an outer ring, a first retainer that includes a retainer portion that retains a force application spring that applies force to a plurality of rolling members, and a second retainer that is installed on the first retainer in a manner that sandwiches the outer ring in the axial direction. On the reel body, a restriction portion that restricts movement of the rotating direction of the one-way clutch is provided, and on the first retainer and the outer ring, a protruding portion that protrudes radially outward is formed, respectively, and the one-way clutch is restricted in movement of the rotating direction by the restriction portion and each protruding portion.

Description

Technical Field

[0001] This invention relates to fishing reels, and more particularly, to a fishing reel equipped with a one-way clutch that prevents the drive shaft from reversing. Background Technology

[0002] Typically, fishing reels, specifically spinning reels, incorporate a reverse rotation prevention mechanism. This mechanism allows the rotor to rotate in the line winding direction during handle rotation, but prevents the rotor from reversing when the handle is turned. The reverse rotation prevention mechanism is usually composed of a one-way clutch, which includes: an inner ring, engaged with a pinion to prevent rotation; a retainer located radially outward of the inner ring to hold multiple rolling components; and an outer ring located radially outward of the retainer, fixed to prevent rotation relative to the reel body.

[0003] The retainer of the one-way clutch is fixed to the cable reel body with screws, thereby maintaining the elastic force of the spring that applies force to the rolling component and enabling the one-way clutch to rotate smoothly. However, if the retainer is fixed to the cable reel body with screws, the cable reel body will become larger, resulting in problems such as reduced installability and the inability to perform individual performance checks when the components are installed separately. Therefore, as shown in Patent Document 1, it is known to pre-assemble the components of the one-way clutch into an integrated assembly structure and to fix the mounting relative to the cable reel body with screws (a screw seat is provided on the outer side of the outer ring to fix it to the cable reel body).

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2010-172272 Summary of the Invention

[0006] In the configuration disclosed in Patent Document 1, screw holes for screw fixing are required on the assembled structure, and the strength of the cable reel body needs to be ensured. Therefore, simply assembling the one-way clutch is insufficient to miniaturize the cable reel body.

[0007] Furthermore, when assembling a one-way clutch assembly, the configuration and arrangement of its components must be considered. For example, if the retainer is offset relative to the outer ring or moves axially, it will cause problems such as unstable operation (unsmooth rotation, long braking time to prevent reverse rotation, etc.) and difficulty in installation.

[0008] The present invention addresses the aforementioned problems and aims to provide a fishing reel that achieves a small and lightweight reel body, is easy to install, and provides stable clutch operation within a fishing reel incorporating a one-way clutch.

[0009] To achieve the above objectives, the fishing reel of the present invention incorporates a one-way clutch that allows rotation in one direction of a rotary drive shaft supported on the reel body and prevents rotation in the other direction. The one-way clutch is characterized by having an assembly structure comprising: an inner ring; an outer ring; a first retainer having a retaining portion for retaining a force-applying spring, the force-applying spring applying force to a plurality of rolling components; and a second retainer mounted on the first retainer to clamp the outer ring axially. A limiting portion is provided on the reel body to restrict movement in the rotational direction of the one-way clutch. Protrusions projecting radially outward are formed on the first retainer and the outer ring, respectively. The rotational direction of the one-way clutch is restricted by the limiting portion of the reel body and each of the protrusions.

[0010] According to the above-described fishing reel, since the one-way clutch is assembled, the installability relative to the reel body can be improved. Furthermore, the constituent component, the retainer, includes: a first retainer with a retaining portion for retaining a force-applying spring that applies force to multiple rolling components; and a second retainer mounted on the first retainer to clamp the outer ring axially. Both the first retainer and the outer ring have radially outwardly protruding portions, which restrict rotational movement by the limiting portion of the reel body. Therefore, axial displacement or offset relative to the outer ring can be prevented, resulting in stable operation as a one-way clutch. Furthermore, since screws are not required for fixing to the reel body, structures requiring strength, such as screw holes, are not needed on the reel body side, allowing for a smaller and lighter reel body.

[0011] Furthermore, the present invention is characterized by providing a one-way clutch that can be inserted into a fishing reel and achieve the aforementioned effects.

[0012] According to the fishing reel of the present invention, a fishing reel that achieves a small and lightweight reel body, is easy to install, and provides stable clutch operation can be obtained, and a one-way clutch that achieves the above-mentioned functions can be obtained. Attached Figure Description

[0013] Figure 1 This is an exploded perspective view showing the first embodiment of the fishing reel (spinning reel) according to the present invention.

[0014] Figure 2 It means Figure 1 The diagram shows the internal structure of a spinning reel.

[0015] Figure 3 It is a 3D diagram of a one-way clutch installed in a fishing reel.

[0016] Figure 4 Is Figure 3 The diagram shows a top view of a one-way clutch with an anti-corrosion plate installed.

[0017] Figure 5 yes Figure 4 The diagram shows a three-dimensional view of a one-way clutch.

[0018] Figure 6 yes Figure 4 The side view of the one-way clutch shown.

[0019] Figure 7 It is along Figure 6 A cross-sectional view along line AA.

[0020] Figure 8 It is along Figure 6 A cross-sectional view of the BB line.

[0021] Figure 9 This is a perspective view showing an example of a corrosion-resistant plate mounted on a one-way clutch.

[0022] Figure 10 The diagram showing the second embodiment of the one-way clutch is a diagram illustrating the engagement state of the first retainer and the limiting part on the winding body side.

[0023] Figure 11 The third embodiment of the one-way clutch is shown in a perspective view, illustrating the configuration of the positioning portion disposed between the first retainer and the outer ring.

[0024] Figure 12 This is an exploded perspective view showing other configuration examples of the fishing reel according to the present invention.

[0025] Figure 13 It means Figure 12 A three-dimensional view of the fixed state of the one-way clutch.

[0026] Symbol Explanation

[0027] 1- Spinning reel (fishing reel); 2- Reel body; 2C- Restriction part (circumferential wall); 2c- Cut-out part; 3- Rotor; 20- One-way clutch; 23- Retainer; 23A- First retainer; 23B- Second retainer; 23c, 27c- Protrusions; 27- Outer ring. Detailed Implementation

[0028] Figure 1 and Figure 2 This diagram illustrates an embodiment of the fishing reel, specifically a spinning reel, according to the present invention. Figure 1 It is an exploded 3D diagram. Figure 2 It is a diagram representing the internal structure.

[0029] Furthermore, in the following explanation of the one-way clutch, the direction to be called the drum side will be defined as front (upper side), the direction to be called the winding body side will be defined as rear (lower side), the axial direction X will be defined as the axis of the drum shaft, and the center O will be defined as the axis position of the drum shaft (see reference). Figure 2 ).

[0030] First, a general overview of the overall structure of the spinning reel in this embodiment will be described.

[0031] On the reel body 2 of the spinning reel (hereinafter referred to as the reel) 1, a reel foot 2A for mounting on a fishing rod is integrally formed. At the front of the reel body 2, there is a rotor 3, which is rotatably supported; and a conventional drum (not shown), which is supported so as to move back and forth synchronously with the rotational movement of the rotor 3.

[0032] The rotor 3 has a pair of wrists 3a that rotate around the drum. At the front end of each wrist 3a, a guide ring support member 3b for mounting the base end of a guide ring 5 is rotatably supported between the line reel-in position and the line release position. At this time, the base end of one of the guide rings 5 ​​is mounted on a line guide (line roller) 6, which is integrally formed on the guide ring support member 3b.

[0033] Within the reel body 2, a handle shaft is rotatably supported by bearings, and a handle is mounted on its protruding end. A drive force transmission mechanism 10 is provided on the handle shaft, which transmits its driving force to the rotor 3 to rotate the rotor when the handle is rotated.

[0034] As is known, the drive force transmission mechanism 10 includes: a drive gear, integrally rotatably mounted on the handle shaft; and a pinion 11, having pinion teeth that mesh with the drive gear. The pinion 11 extends in a front-rear direction orthogonal to the handle shaft and functions as a rotary drive shaft, the rotary drive shaft having an axially extending cavity 11a formed inside. At this time, a spool shaft passes through the cavity 11a, the spool shaft engaging with a known oscillating mechanism that moves the spool back and forth when the handle is rotated, and the spool is mounted on the top end of the spool shaft.

[0035] The pinion 11 is rotatably supported on the reel body 1. Furthermore, the pinion 11 extends toward the drum side, and the rotor 3 is integrally rotatably mounted on the top end of the pinion 11. The through-hole of the protrusion 3A formed on the central portion of the rotor 3 is fitted onto the top end of the pinion 11, and the rotor 3 can be secured by a fastening nut (not shown). Additionally, a one-way clutch 20 constituting a reverse-rotation prevention device is provided on the pinion 11.

[0036] With the above configuration, when the handle is wound up, the rotor 3 is rotated via the drive force transmission mechanism 10, and the drum moves back and forth in the front-to-back direction via the swing mechanism and the drum shaft. As a result, the fishing line is evenly wound onto the drum through the fishing line guide 6 of the rotor 3, which is driven by rotation.

[0037] Next, besides Figure 1 and Figure 2 In addition, refer to Figures 3 to 9 The one-way clutch 20 of this embodiment will be described.

[0038] Figures 3 to 9 It shows that it has been loaded into Figure 1 The one-way clutch in the spinning reel shown is part of the assembly structure. Figure 3 It is a 3D image. Figure 4 This is a top view showing the installation of corrosion-resistant panels. Figure 5 for Figure 4 The diagram shown is a three-dimensional representation of a one-way clutch. Figure 6 for Figure 4 The side view of the one-way clutch shown is shown. Figure 7 For along Figure 6 A cross-sectional view of line AA. Figure 8 For along Figure 6 A sectional view of the BB line, and then, Figure 9 This is a perspective view showing an example of a corrosion-resistant plate mounted on a one-way clutch.

[0039] like Figure 1 As shown, a base 2B, which is formed in a generally circular plate shape, is provided on the drum side of the cable reel body 2. A limiting portion 2C, which restricts the movement of the one-way clutch 20 in the rotational direction, is provided on the surface of the base 2B. In this embodiment, the limiting portion 2C is configured as a circumferential wall (a cylindrical portion protruding axially) 2C provided on the cable reel body 2. The pinion 11 passes through the center portion of the circumferential wall 2C and is rotatably supported, with the one-way clutch 20 disposed in its middle portion. At this time, cutouts 2c are formed at 180° intervals on the circumferential wall 2C to accommodate the protrusions 27c of the one-way clutch 20, which will be described later.

[0040] The pinion 11 is driven to rotate by a drive gear through a rotational operation of the handle. Furthermore, a one-way clutch 20 is disposed on the middle portion of the pinion 11, providing a function to allow rotation of the pinion 11 in the fishing line reeling direction while preventing reverse rotation, and includes: an inner ring 21; an outer ring 27; and a retainer 23, having a retaining portion 23a for retaining the force-applying springs 24 that apply force to the plurality of rolling components 25. The retainer 23 includes: a first retainer 23A, having the retaining portion 23a; and a second retainer 23B, mounted on the first retainer 23A to axially clamp the outer ring 27. These components are then assembled (an assembly structure integrating multiple components; also called an ASSY) and can be used as a single unit.

[0041] Thus, by using multiple components (first retainer 23A and second retainer 23B) to construct the retainer 23, the axial detachment of components such as the outer ring can be suppressed, and assembly can be easily achieved.

[0042] The inner ring 21 is prevented from rotating relative to the pinion 11 and functions as a drive shaft that rotates integrally with the pinion 11. Specifically, the cross-section of the pinion 11 has a partially formed non-circular portion. By fitting the non-circular portion of the inner ring 21 into this portion, the inner ring 21 can rotate integrally with the pinion 11 (see reference). Figure 5 ).

[0043] The retainer 23 is disposed radially outward of the inner ring 21, and as described above, is constructed by integrating the first retainer 23A and the second retainer 23B. In this embodiment, the first retainer 23A is disposed on the lower side, and the second retainer 23B is disposed on the upper side. These first retainers 23A and second retainers 23B are integrally mounted and assembled in a manner that clamps the outer ring 27. At this point, the first retainer 23A can also be defined as the upper side, and the second retainer 23B as the lower side.

[0044] Furthermore, there are no particular limitations on the connection structure (engaging and fixing part) that integrates the first retainer 23A and the second retainer 23B. For example, it can be constructed by forming a displaceable protrusion on the first retainer 23A that protrudes axially at predetermined intervals in the circumferential direction, and simultaneously forming a recess in the second retainer 23B at a corresponding position to insert the protrusion. In this configuration, by moving the second retainer 23B axially in a manner that clamps the outer ring 27 and engaging the protrusion with the recess, the first retainer 23A and the second retainer 23B can be integrated. Alternatively, the first retainer 23A and the second retainer 23B can also be integrated by welding, screw fixing, or the like.

[0045] The first retainer 23A has retaining portions 23a arranged at certain intervals in the circumferential direction. Each retaining portion 23a has an opening in the circumferential direction (e.g., ...). Figure 7 As shown, each recess 23b (opening in the counterclockwise rotation direction) holds a force-applying spring 24. Furthermore, a rolling member 25 is arranged between each holding portion, and each rolling member 25 is rotated circumferentially by the force-applying spring 24. Figure 7 The direction of rotation is counterclockwise; force is applied in the opposite direction.

[0046] The outer ring 27 is disposed radially outward of each rolling component 25 and is formed as an annular ring (or approximately an annular ring) (see reference). Figure 7 The inner circumferential surface of the outer ring 27 continuously forms: a wedge region 27a, which prevents the rotation of each rolling component 25; and a free region 27b, which allows the rolling components 25 to rotate freely. Each rolling component 25 held on the retainer 23 (first retainer 23A) is always under force applied towards the wedge region by the force-applying spring 24. Furthermore, the outer circumferential surface 27d of the outer ring 27 is formed as a circle (including a substantially circle).

[0047] On a portion of the generally annular outer ring 27, a protrusion 27c is provided, projecting radially outward. This protrusion functions to restrict the rotation of the outer ring 27. The protrusion 27c is integrally formed, projecting radially outward from the outer peripheral surface 27d of the outer ring 27, and at least one such protrusion is provided. Since a large torque is applied to the outer ring, there is a possibility of stress concentration at one point, leading to imbalance, etc. Therefore, it is preferable to form two or more protrusions at equal intervals. In this embodiment, two protrusions are provided at 180° intervals, facing each other and sandwiching the axis (center O). Each protrusion 27c has a certain width in the circumferential direction, and the two circumferential sides 27e and 27f have an anti-rotation function.

[0048] like Figure 8 As shown, the first retainer 23A has the same shape as the outer ring 27, and preferably, a protrusion 23c of approximately the same shape is integrally formed at the same position (overlapping axially) as the protrusion 27c of the outer ring 27. Similar to the outer ring, this protrusion 23c is also provided in two places at 180° intervals, facing each other and sandwiching the axis (center O). The protrusion 23c has a certain width in the circumferential direction, and the two circumferential sides 23e and 23f have an anti-rotation function.

[0049] A slit 2c is formed on the circumferential wall 2C protruding from the coil body 2, extending radially through the circumferential wall. The slit 2c is formed to accommodate the protrusion 23c of the first retainer 23A and the protrusion 27c of the outer ring 27. By fitting each protrusion 23c and 27c into the slit 2c and arranging the second retainer 23B from its surface, the one-way clutch is prevented from rotating and fixed, and the axial disengagement of the outer ring is restricted (restricting circumferential and axial movement).

[0050] Furthermore, while it is sufficient to form one or more slits 2c on the circumferential wall 2C, in this embodiment, two slits 2c are formed at equal intervals in the circumferential direction (two slits spaced 180° apart and symmetrical about the center O) in the same number as the protrusions 23c and 27c formed on the first retainer 23A and the outer ring 27. Thus, by pre-setting two or more slits 2c in the same number as the protrusions formed on the first retainer 23A and the outer ring 27, the one-way clutch can be stably maintained without loosening.

[0051] The outer peripheral surfaces of the protrusions 23c and 27c protrude radially on the cut portion 2c of the circumferential wall 2C, allowing them to be pinched against the fingers. Therefore, by utilizing the exposed protrusions, the first retainer 23A and the outer ring 27 can be easily pinched together, thus improving the ease of assembly and disassembly of the one-way clutch 20. At this point, it is preferable to form a chamfer 2d (refer to...) that gradually widens upwards on the opening side (upper end side) of the cut portion 2c. Figure 6 By pre-forming such a chamfer 2d, it is easier to install and remove the first retainer 23A and the outer ring 27.

[0052] In the above configuration, regarding the protrusion 23c and the cutout 2c of the first retainer 23A, as follows: Figure 8 As shown, it is preferable to have a gapless contact (contact in a state without play). That is, when there is play between the two, when the inner ring 21 rotates in the direction of line reeling, the first retainer 23A of the force-adding spring 24 will also be driven to rotate through the inner ring, thereby causing the force-adding spring 24 to move circumferentially (in... Figure 7 In this configuration, the force spring 24 rotates clockwise along with the first retainer (with a clearance). Because in this state, when a load is applied to the reverse side, the time it takes for each rolling element 25 to move towards the wedge region 27a of the outer ring 27 is extended by an amount equivalent to the clearance, thus consuming time until braking and preventing rapid locking performance. Conversely, as... Figure 8As shown, by making the protrusion 23c and the cutout 2c of the first retainer 23A fit together without gap, the fixed position of the force spring 24 can be maintained, and a rapid locking performance can be achieved during reversal without wasting time until operation due to play.

[0053] In addition, the gap S between the outer peripheral surface 23g of the first retainer 23A and the circumferential wall 2C can be pre-formed to absorb the tolerance of the first retainer 23A.

[0054] Furthermore, for the outer ring 27, as Figure 7 As shown, the preferred configuration is such that a small clearance S1 exists between the protrusion 27c and the cutout 2c, and between the outer peripheral surface of the outer ring 27 and the inner peripheral surface of the circumferential wall 2C. With this configuration, even if some tolerances arise on the outer ring 27 and the circumferential wall 2C, causing a shift in concentricity relative to the center O, this shift can be absorbed. Therefore, smooth rotational performance is ensured while preventing loosening, and assembly and disassembly operations are facilitated. Furthermore, by fitting the outer ring 27 into the circumferential wall 2C and maintaining a non-contact state between them (creating a clearance S1), a non-contact state can be maintained between the outer ring 27 and the circumferential wall 2C when centering the inner ring 21, preventing electrical conductivity between the two components.

[0055] In the above configuration, it is preferable to pre-position the outer ring 27 and the second retainer 23B between them. By pre-positioning such a positioning part, as described above, when the first retainer 23A and the second retainer 23B are integrated by the connecting structure (engaging fixing part), their positional relationship can be maintained, making it easy to install the one-way clutch assembled from the above-described components into the winding reel body. That is, since the positioning is formed with the protrusion 23c of the first retainer 23A and the protrusion 27c of the outer ring 27 aligned, it is convenient to use and easy to install into the cutout 2c of the circumferential wall 2C.

[0056] The positioning part only needs to fix the position between the outer ring 27 and the retainer 23. For example, the positioning part in this embodiment is configured to include: a recess 27c2 formed on the outer peripheral surface 27c1 of the protrusion 27c of the outer ring 27; and a protrusion 23c2 formed on the second retainer 23B and fitted with the recess 27c2. At this time, on the second retainer 23B, at the position overlapping with the protrusions 23c and 27c, a pair of radially protruding tabs 23m are formed, and the protrusion 23c2 is formed vertically on the outer peripheral surface 23n of the protrusion tabs 23m.

[0057] By providing the aforementioned positioning portion, the first retainer 23A, outer ring 27, and second retainer 23B, which are formed in the shape of circular plates, can overlap, and the protruding piece 23m of the second retainer 23B can be easily aligned with the protruding portion 23c of the first retainer 23A and the protruding portion 27c of the outer ring 27, which protrude radially respectively. Therefore, by covering the outer ring 27 with the second retainer 23B along the axial direction, the protrusion 23c2 can be fitted with the recess 27c2 to form a positioning, thereby facilitating assembly.

[0058] Furthermore, by configuring the diameter of the circumferential wall 2C (the diameter of the outer circumferential surface of the circumferential wall) to be the same as the outermost diameter of the outer ring 27 (the diameter of the outer circumferential surface 27c1 of the exposed side of the protrusion 27c), the one-way clutch can be miniaturized.

[0059] Furthermore, in this embodiment, an electrochemical corrosion prevention plate (corrosion-resistant plate; also called corrosion-resistant component) 28 (see reference) formed in a ring shape is axially overlapped on the second retainer 23B. Figure 9 ).

[0060] Typically, the outer ring of the one-way clutch is configured to contact the cylindrical portion formed on the winding body. Since the outer ring usually has a corrosion-resistant coating such as nickel plating formed on SUS, corrosion is less likely to occur between the two if non-metallic materials such as ADC12 treated with an alumina film or high-strength resin are used to construct the winding body. However, if magnesium-based metallic materials are used to form the winding body, the potential difference between the two increases, making corrosion (electrochemical corrosion) more likely.

[0061] In the above configuration, since the contact portion between the outer ring 27 and the circumferential wall 2C of the winding body 2 is the cut-out portion 2c and the two circumferential sides 27e and 27f of the protrusion 27c that abuts against it, it is sufficient to keep this portion in an insulated state.

[0062] In this embodiment, the corrosion-resistant plate 28 is configured to be axially detachable in a manner that overlaps with the one-way clutch 20, and is configured to be plate-shaped and annular so as not to enlarge the reel body.

[0063] For example, corrosion-resistant board 28 can be like Figure 9 As shown in the diagram.

[0064] Figure 9 The corrosion-resistant plate 28 shown is disposed radially outward of the second retainer 23B and has an annular body 28a placed on the surface portion of the second retainer 23B. On both sides of the body 28a in the diametrical direction, there are protrusions 28b protruding radially outward, and on both sides of each protrusion 28b, there is a pair of feet 28c hanging down axially.

[0065] The tab 28b is formed to have a shape substantially the same as the protrusion 27c of the outer ring 27, and a pair of feet 28c are configured to be positioned between the circumferential sides 27e, 27f of the protrusion 27c and the cutout 2c when the body 28a is axially loaded onto the surface portion of the outer ring 27 (see reference). Figures 4-7 At this point, as long as the outer ring 27 has a slight clearance between the protrusion 27c and the cutout 2c, even in a configuration where the anti-corrosion plate 28 is provided, the same clearance can be created between the clamped foot 28c and the cutout 2c.

[0066] The corrosion-resistant plate 28 only needs to be positioned between the two parts (with a pair of feet 28c sandwiched between them) and is made of a non-conductive insulating material. For example, when the reel body (cylindrical part) is made of magnesium, it is preferable to use a material with a small potential difference between it and the outer ring, such as aluminum (aluminum alloy treated with an alumina film). Since such raw materials can be easily manufactured by stamping and are non-magnetic, they will not be attracted by magnets even if a magnetic sealing mechanism is provided, and they will not be energized due to the alumina film layer. Furthermore, since the shape is stable during stamping, it is easy to install or remove without affecting rotation.

[0067] Regarding the materials used to construct the corrosion-resistant plate (corrosion-resistant component), appropriate raw materials can be selected based on the materials of the outer ring 27 and the winding reel body, and it can also be made of other metal materials or resin materials, etc. Furthermore, the shape of the corrosion-resistant plate can be appropriately modified, as long as the corrosion-resistant component is inserted between the one-way clutch and the winding reel body.

[0068] Alternatively, the anti-corrosion plate 28 can also be configured without being equipped.

[0069] The one-way clutch 20 configured as described above and the fishing reel in which the one-way clutch 20 is installed can prevent the fishing line release direction of the handle (rotor 3) from rotating (reversing).

[0070] That is, rotating the operating handle in the direction of line reeling rotates the drive pinion (in... Figure 7 When the inner ring 21 is rotated in the clockwise direction, it will also rotate in the same direction as the pinion. At this time, since the rolling component 25 held on the retainer 23 (first retainer 23A) moves to the free area 27b of the outer ring 27, the rotational force of the inner ring 21 will not be transmitted to the outer ring 27, so the rotor 3 can rotate freely with the pinion 11.

[0071] Conversely, when the inner ring 21 attempts to reverse along with the pinion 11 (rotor 3 rotates in the line-release direction), the rolling member 25, held on the retainer 23 (first retainer 23A), rotates counterclockwise and, via the force-adding spring 24, is located in the wedge region 27a of the outer ring 27, thus transmitting the rotational force of the inner ring 21 to the outer ring 27. At this moment, since the outer ring 27 is restricted from rotation by the protrusion 27c, it acts as a stop to prevent the pinion and rotor 3 from reversing.

[0072] Furthermore, since the aforementioned one-way clutch 20 is configured with protrusions 23c and 27c positioned within a cutout 2c formed on the circumferential wall 2C of the cable reel body 2, it does not require screw mounting to the cable reel body. Therefore, it is unnecessary to place the screw seat radially outward from the outer ring or to increase the strength of the seat. This facilitates use and achieves a compact and lightweight overall cable reel.

[0073] In particular, since the one-way clutch 20 pre-assembles the first retainer 23A, the outer ring 27 and the second retainer 23B that apply force to hold the rolling component 25, and the outer ring 27 is prevented from disengaging by the two retainers 23A and 23B, it achieves small size and light weight, while making it easy to use, improving maintainability and installation relative to the cable reel body.

[0074] Furthermore, by forming protrusions 23c and 27c on the first retainer 23A and the outer ring 27 respectively, and configuring them into the cutouts 2c formed on the circumferential wall 2C of the winding body 2 (preferably at two or more locations), loads applied in the reverse direction can be effectively prevented. At this time, by forming a protruding piece 23m on the second retainer 23B, and forming an overlapping configuration axially with the protrusions 23c and 27c (see reference...) Figure 3 This design allows for easy assembly and disassembly of all components by simultaneously pinching them with your fingers. As an assembly structure, it improves both usability and maintainability. Specifically, because the protrusions 23c, 27c, and the protruding plate 23m are symmetrically arranged in the diametrical direction, they can be easily pinched, facilitating the assembly and disassembly of the one-way clutch.

[0075] Furthermore, since there is a gap between the outer ring 27 and the inner circumferential surface of the circumferential wall 2C of the reel body and the cut-out portion 2c, smooth rotation can be ensured even if eccentricity occurs, and a stable anti-reverse function can be provided. At this time, by making the first retainer 23A fit into the reel body (cut-out portion 2c) without gap, the rotation of the retainer 23 in the fishing line winding direction of the inner ring 21 (driven by the force spring 24) is restricted. In addition to smooth rotation, the time required for braking when reversing is not consumed, and an operationally stable anti-reverse function can be provided.

[0076] Additionally, after installing the aforementioned one-way clutch 20 into the cable reel body, as... Figure 1 and Figure 2 As shown, in order to improve the waterproof and dustproof effect of the one-way clutch 20, a magnetic sealing mechanism 50 can also be provided.

[0077] As is known, the magnetic sealing mechanism 50 includes: annular magnetic plates (pole plates) 51, 52, which are arranged to have a small gap between them and the outer peripheral surface of the drive shaft (inner ring 21); and annular magnet 53, which is held between the magnetic plates and is configured to fill the gap between the drive shaft and the magnetic plates with magnetic fluid.

[0078] Furthermore, in this embodiment, a waterproof cover 60 is provided on the reel body to cover the circumferential wall 2C and the one-way clutch 20. The waterproof cover 60 is shaped to have a cylindrical portion 61 surrounding the one-way clutch 20 and a cover portion 62 that closes the opening on the drum side, and the magnetic plate 51 of the magnetic sealing mechanism 50 is in close contact with the inner surface of the cover portion 62.

[0079] Thus, since a magnetic sealing mechanism 50 is provided on the drum side of the one-way clutch 20, and a waterproof cover 60 is provided to cover the circumferential wall 2C and the one-way clutch 20, the ingress of foreign matter such as moisture or dust can be prevented, thereby improving durability.

[0080] Figure 10 The diagram illustrates a second embodiment of the one-way clutch, showing the engagement state of the first retainer 35A with the limiting portion 2C (the cutout 2c of the circumferential wall 2C) on the winding body side. In the embodiments described below, the same reference numerals are used to label the same components as in the embodiments described above, and detailed descriptions are omitted.

[0081] Although in the above embodiment, the positioning part is located between the outer ring 27 and the second retainer 23B, specifically, as Figures 5-7As shown, a recess 27c2 is formed on the outer peripheral surface 27c1 of the protrusion 27c of the outer ring 27, and a protrusion 23c2 that fits into the recess 27c2 is formed on the second retainer 23B. However, the protrusion can also be formed on the first retainer 23A. That is, a protrusion 23c3 with the same positioning function can also be integrally formed on the outer peripheral surface 23p of each protrusion 23c of the first retainer 23A, facing upward in the axial direction.

[0082] Thus, by forming a protrusion constituting a positioning part on the first retainer 23A, the second retainer 23B can be replaced with a structure without a protrusion, thereby increasing the degree of design freedom.

[0083] Figure 11 The third embodiment of the one-way clutch is shown in a perspective view, illustrating the configuration of the positioning portion disposed between the first retainer and the outer ring.

[0084] The aforementioned positioning portion is composed of a recess 27c2 formed on the outer peripheral surface of the protrusion of the outer ring 27 and protrusions 23c3 and 23c2 formed on the first retainer or the second retainer. However, for example, it may also be composed of a recess 27k formed on the inner peripheral surface of the outer ring 27 and a radial protrusion 23k formed on the first retainer 23A and fitted with the recess 27k.

[0085] Thus, by positioning it radially inward on the outer ring 27, the positioning part will not protrude radially outward, thereby preventing damage to the protrusions 23c2 and 23c3 in the above embodiment. At this time, there are no restrictions on the position, shape, or number of the recess 27k and the radial protrusions 23k that fit into the recess, but strength can be ensured by forming them on the portion of the radially protruding protrusions 27c. Furthermore, such recesses 27k can be easily formed by punching together with the wedge region 27a and the free region 27b.

[0086] Figure 12 This is an exploded perspective view showing other configuration examples of the fishing reel according to the present invention. Figure 13 It means Figure 12 A three-dimensional view of the fixed state of the one-way clutch.

[0087] Similar to the embodiment described above, the one-way clutch 20 in this embodiment is an assembly structure, and protrusions 23c and 27c are formed at 180° intervals on the first retainer 23A and the outer ring 27. Furthermore, an abutment portion (restriction portion) 2E is formed on the winding body 2 to restrict the rotation of the outer ring by abutting the sides of the protrusions 23c and 27c. Here, the abutment portion 2E is not configured as a cylinder as in the first embodiment; it can simply be a structure that protrudes axially and abuts the sides of the protrusion to restrict rotation (e.g., a boss, rib, etc.). Therefore, as long as there is one protrusion on the first retainer and the outer ring, it is sufficient to restrict rotation in both directions by abutting at two points on both circumferential sides of the protrusion.

[0088] Furthermore, since the protrusions 23c and 27c of this embodiment are formed at 180° intervals, abutment portions 2E are provided on both sides of each protrusion in the circumferential direction, and are configured to abut each other through two points (side surface 2E′ of abutment portion 2E) on both sides of the protrusion in the circumferential direction.

[0089] With this configuration, similar to the embodiment described above, corrosion of the winding reel body can be prevented by the corrosion-resistant plate 28, and the one-way clutch 20 can be fixed in place without the circumferential wall 2C with the cutout 2c, achieving greater weight reduction and miniaturization. Furthermore, since this configuration creates space around the contact portion, it facilitates the installation and removal of the one-way clutch 20.

[0090] Furthermore, the abutting portion 2E is preferably formed such that it abuts at two points radially inward, at a position further inward than the outermost diameter of the protrusions 23c and 27c.

[0091] Because of this configuration, the contact portion 2E can be made thinner, thus further reducing weight.

[0092] The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments and various modifications can be made.

[0093] Regarding the protrusions 23c and 27c described above, their shapes can be appropriately modified. For example, the exposed surface of the protrusion may protrude radially from the circumferential wall 2C within the cutout 2c of the circumferential wall 2C, or it may not protrude at all. Furthermore, although in Figure 12 In the configuration shown, the protrusion abuts against the abutment 2E on both circumferential sides. However, a recess can also be pre-formed along the axial direction on the central portion of the protrusion, and the abutment can be formed by embedding into the recess. Alternatively, a semi-I-shaped abutment extending axially can be provided on the reel body to abut against both sides of the protrusion.

[0094] Although in the above structure, the protrusion 23c of the first retainer 23A and the protrusion 27c of the outer ring 27 are configured to overlap at the same position, they can also be configured to overlap at a position offset in the circumferential direction.

[0095] Although the one-way clutch in the above-described embodiment prevents rotor reversal by fixing the retainer 23, it can also be structured such that an operating member protrudes outside the winding body, and the retainer is rotated by operating the operating member, placing the rolling member in the free region to allow rotor reversal. Furthermore, to limit the axial movement of the one-way clutch 20, a limiting plate (not shown) may be additionally disposed adjacent to the one-way clutch 20.

[0096] Furthermore, although a spinning reel is exemplified as a fishing reel in this embodiment, the one-way clutch 20 assembled as described above can also be applied to other reels (such as double-bearing type reels) into which the one-way clutch 20 can be installed.

Claims

1. A fishing reel, incorporating a one-way clutch that allows rotation in one direction of a rotary drive shaft supported on the reel body and prevents rotation in the other direction, characterized in that, The one-way clutch has an assembly structure comprising: an inner ring; an outer ring; a first retainer having a retaining portion for retaining a force-applying spring that applies force to a plurality of rolling components; and a second retainer mounted on the first retainer to axially clamp the outer ring. The winding reel body is provided with a limiting part that is fixed in a manner that restricts the movement of the one-way clutch in the direction of rotation. Both the first retainer and the outer ring have protrusions that project radially outward. The limiting portion is either a circumferential cutout formed along the circumferential wall or a boss or rib that protrudes axially and abuts against the side of the protrusion. The one-way clutch is restricted in its rotational direction by the limiting portion and each of the protrusions of the winding body.

2. The fishing reel according to claim 1, characterized in that, While the circumferential wall has two or more cuts at equal intervals in the circumferential direction, it also has the same number of protrusions as the cuts.

3. The fishing reel according to claim 1, characterized in that, The outer ring has clearance relative to the limiting portion.

4. The fishing reel according to claim 1, characterized in that, The protrusion of the first retainer contacts the limiting portion without gap.

5. The fishing reel according to claim 1, characterized in that, A positioning part is provided between the outer ring and the first retainer or the second retainer for positioning between the outer ring and the first retainer or the second retainer.

6. The fishing reel according to claim 5, characterized in that, The positioning portion has: a recess formed on the outer peripheral surface of the protrusion of the outer ring; and a protrusion formed on the first retainer or the second retainer, which engages with the recess.

7. The fishing reel according to claim 5, characterized in that, The positioning portion has: a recess formed on the inner circumferential surface of the outer ring; and a radial protrusion formed on the first retainer or the second retainer, which engages with the recess.

8. The fishing reel according to claim 1, characterized in that, A corrosion-resistant plate is axially overlapped with the one-way clutch, and the corrosion-resistant plate has a foot between the protrusion and the cut-out portion.

9. The fishing reel according to claim 1, characterized in that, The first retainer and the protrusion of the outer ring are formed in an axially overlapping manner.

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