Spinning reel for fishing

Abstract

This invention provides a spinning reel for fishing in which, when the spool shaft comes into contact with the collar member and causes stick-slip, the rotation of the rotor rotates the collar member, allowing the spool shaft to come into contact with the collar member again, thereby eliminating the stick-slip and enabling smooth reciprocating motion of the spool shaft and rotation of the rotor. [Solution] The reel comprises a spool shaft 15 that reciprocates relative to the reel body 10, a pinion gear 19 that rotates around the spool shaft 15, a rotor 30 that rotates integrally with the pinion gear 19, a rotor nut 21 positioned on the periphery of the spool shaft 15 and fixing the rotor 30 to the pinion gear 19, a bearing 23 positioned radially between the spool shaft 15 and the rotor nut 21 and rotatably supporting the rotor nut 21, a cylindrical member 25 positioned between the spool shaft 15 and the bearing 23, and a rotation control member 110 that switches the cylindrical member 25 between integral rotation with the rotor nut 21 and no rotation required.

Description

Technical Field

[0001] The present invention relates to a spinning reel for fishing.

Background Art

[0002] Conventional fishing spinning reels include a reel body, a spool shaft that supports a spool for winding fishing line, a pinion gear that transmits the rotation of a handle rotatably attached to the reel body, a rotor that rotates around the spool by the rotation of the pinion gear and winds the fishing line onto the spool, a rotor nut that fixes the rotor, a so-called collar member which is a cylindrical positioning member made of metal or resin provided on the inner circumference of the rotor nut and slidably supports the spool shaft that moves in the axial direction, and a bearing that rotatably supports the collar member on the rotor nut.

[0003] More specifically, the rotor nut is disposed on the pinion gear in front of the pinion gear. The rotor nut restricts the forward movement of the rotor with respect to the pinion gear and fixes the rotor to the pinion gear. The rotor nut rotates integrally with the pinion gear and the rotor.

[0004] The collar member is formed in a cylindrical shape, disposed on the rotor nut in front of the pinion gear, and slidably supports the spool shaft. The bearing is disposed between the collar member and the rotor nut on the radially outer side of the collar member and rotatably supports the collar member with respect to the rotor nut.

[0005] When the spool shaft moves back and forth with respect to the reel body by an oscillation mechanism for evenly winding the fishing line onto the spool, the outer peripheral surface of the spool shaft slides on the inner peripheral surface of the collar member. For example, when the collar member is made of a metal such as brass, it is difficult to accurately and smoothly process the surface roughness of the inner peripheral surface with a thin-walled collar member. If the collar member is processed to be thick for accurate processing, it leads to an increase in the outer diameter and weight of the collar member itself and the bearing. When the collar member is made of resin, this problem can be solved.

[0006] However, when resins such as polyacetal, which are commonly used for sliding members, are used for collar members, the coefficient of linear expansion of the collar member increases. As a result, at low or high temperatures, the contraction or expansion of the inner and outer diameters of the collar member may increase sliding resistance and looseness, potentially leading to unstable sliding feel.

[0007] Therefore, a technology has been disclosed (Patent Document 1) that aims to reduce the size and weight of the color component of a spinning reel by forming the color component from a resin material and easily adjusting the surface roughness of the inner circumferential surface of the color component. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2023-35653 [Overview of the project] [Problems that the invention aims to solve]

[0009] As mentioned above, the spool shaft of a spinning reel performs an oscillation function, moving back and forth (in the longitudinal direction of the fishing rod) relative to the reel body in order to evenly wind the fishing line onto the spool. A pinion gear rotates around the spool shaft as it moves back and forth in this direction.

[0010] In this way, around the area where the rotor is fixed to the pinion gear by the rotor nut, the reciprocating movement of the spool shaft and the rotation of the pinion gear and rotor intersect. When the winding load of the spinning reel is small, the pinion gear and rotor rotate smoothly around the reciprocating spool shaft without interfering with (contacting) each other.

[0011] However, when a fish with strong winding power is hooked, for example, a fish that pulls hard or makes a sudden turn, the spool shaft may bend slightly, and the rotor may also bend slightly when a fish with strong pull or a sudden turn is hooked.

[0012] In many such situations, the collar component and the spool shaft come into contact, often hindering the spool shaft's reciprocating motion. This is a phenomenon known as stick-slip, where the spool shaft catches on the reciprocating motion, causing discomfort to the user.

[0013] Furthermore, as spinning reels are used repeatedly, and due to aging and other factors, the lubrication between the collar component, spool shaft, and rotor may deteriorate, potentially causing friction noises or squeaking during normal use. This is because, although the intended purpose was for relative rotation to occur through the bearing between the collar component and the rotor, changes in the condition cause stick-slip between the collar component and the spool shaft.

[0014] The technology disclosed in Patent Document 1 improves the sliding feel by applying resin to the colored member, but it has not succeeded in suppressing the deterioration of the sliding feel (including sliding noise, squeaking, etc.) due to use and aging.

[0015] Therefore, the present invention aims to solve the problems of the prior art described above and to provide a spinning reel for fishing in which, when the spool shaft comes into contact with the collar member and stick-slip occurs, the rotation of the rotor rotates the collar member, causing the spool shaft to come into contact with the collar member and eliminating the stick-slip, thereby enabling smooth reciprocating motion of the spool shaft and rotation of the rotor. [Means for solving the problem]

[0016] (1) The present invention relates to a spinning reel for fishing. A first aspect thereof comprises a spool shaft that moves back and forth relative to the reel body, a pinion gear that rotates around the spool shaft, a rotor that rotates integrally with the pinion gear, a rotor nut disposed on the periphery of the spool shaft and fixing the rotor to the pinion gear, a bearing disposed radially between the spool shaft and the rotor nut and rotatably supporting the rotor nut, a cylindrical member disposed between the spool shaft and the bearing, and a rotation control member that switches the cylindrical member between integral rotation with the rotor nut and non-rotation.

[0017] This configuration includes a rotation control member that switches the relationship between the cylindrical member, which is a so-called collar member, and the rotor nut between integrated rotation and no rotation depending on the situation. In other words, by adding the rotation control member, it is possible to make the collar member and the rotor rotate together under high load conditions.

[0018] In this way, by arranging the rotation control member, under low load conditions, the cylindrical member (collar member) and the rotor rotate together, and under high load conditions, the spool shaft comes into contact with the cylindrical member (collar member), causing a stick-slip-like catch. When the cylindrical member (collar member) and the rotor stop rotating together due to the bearing, the rotation of the rotor rotates the cylindrical member (collar member) via the rotation control member, and the spool shaft comes into contact with the cylindrical member (collar member), eliminating the stick-slip and allowing the reciprocating motion of the spool shaft and the rotation of the rotor to become smooth.

[0019] (2) A second aspect of the present invention is a configuration in which, in the configuration of the first aspect, the rotation control member is provided on the periphery of the cylindrical member and elastically contracts in response to a biasing force of a predetermined or greater magnitude in the centripetal direction in at least a part of it, thereby pressing the cylindrical member radially and causing the cylindrical member to rotate together with the rotor nut.

[0020] In the configuration of the second aspect of the present invention, the rotation control member is positioned on the periphery of the cylindrical member. When a force exceeding a predetermined amount is applied to this rotation control member in the centripetal direction of the spool shaft, for example, when a fish is caught and pulls strongly, or when there is a sudden reversal, and an excessive load is applied that bends the spool shaft through the fishing line, the cylindrical member is pressed. When the cylindrical member is pressed, the cylindrical member and the rotor nut are coupled by frictional force and rotate together. The behavior of pressing or not pressing in response to a load above a certain amount can be achieved with a general nonlinear spring, a member made of two or more laminated elastic materials, etc.

[0021] According to the configuration of the second aspect of the present invention, when a certain load is applied to the spool shaft and rotor, the cylindrical member slides with the rotor while rotating via the rotation control member, so that a state without sliding noise can be maintained even if lubrication is insufficient. Also, when a winding load is applied, winding becomes lighter. Furthermore, even when the reel is used many times, the load on the sliding parts is reduced during use, so that the feel of the reel can be maintained and the service life can be extended.

[0022] (3) A third aspect of the present invention is a rotation control member, in the first and second aspects, which is a shaft spring comprising a first elastic portion formed in the shape of a ring with a notch at its end, and a second elastic portion integral with the first elastic portion and extending from the notch in the radial direction of the ring by bending, wherein the first elastic portion is arranged around a cylindrical member and the second elastic portion is engaged with a rotor nut.

[0023] In a third embodiment of the present invention, a type of spiral spring, known as a "question mark spring," is used as the shaft spring. This spring has a first elastic portion formed in a ring shape with a notch at its end, and a second elastic portion that is integral with the first elastic portion and extends from the notch in a rod-shaped manner, bending radially from the ring. The "question mark spring" has a flat washer that is partially cut and twisted, and the partially cut portion is further bent relative to the surface of the washer. The presence of this twisted and bent portion provides an effect of preventing loosening and preventing detachment if it loosens.

[0024] The configuration of the third aspect of the present invention makes use of the characteristics of this shaft spring. When the load is small, the spring itself does not deform. When an excessive load in the centripetal direction of the spool shaft occurs, it realizes the requirement of the rotation control member to press the cylindrical member.

[0025] According to the configuration of the third aspect of the present invention, it is only necessary to arrange a shaft spring having non-linear elastic characteristics with respect to the load. With a simple configuration, for loads above a certain level, behaviors such as pressing or not pressing can be realized, thereby preventing deterioration of the sliding feeling of the reel and extending the life of the reel itself. In addition, the shaft spring, which is a rotation control member, can be easily replaced, improving the maintainability of the reel.

[0026] (4) The fourth aspect of the present invention is configured such that, in the first and second aspects, a seal member is provided that is annularly arranged around the spool shaft and covers the bearing and the rotor nut, and the rotation control member is a spring washer inserted between the seal member and the end portions of the bearing and the cylindrical member.

[0027] In the configuration of the fourth aspect of the present invention, a spring washer is applied as the rotation control member. Due to the non-linear elastic characteristics similar to those of the shaft spring in the third aspect, when a certain load is applied to the spool shaft and the rotor, the rotation of the rotor causes the cylindrical member (collar member) to rotate through the rotation control member, and when the spool shaft contacts the cylindrical member (collar member), the stick-slip is eliminated, enabling smooth reciprocating motion of the spool shaft and rotation of the rotor.

[0028] According to the configuration of the fourth aspect of the present invention, since the spring washer, which is the rotation control member, is inserted between the seal member and the end portions of the bearing and the cylindrical member, the rotation control member can follow the deformation caused by an excessive load, thereby enhancing the sealing effect. Furthermore, by abutting against the end portion of the bearing that directly receives the load, the regulation of rotation due to non-linear elastic characteristics can be reliably realized. Also, since a general spring washer can be applied, it can be easily obtained.

[0029] (5) A fifth aspect of the present invention is that, in the first and second embodiments, the rotation control member may be configured to be an O-ring positioned between the rotor nut and the cylindrical member.

[0030] In the configuration of the fifth aspect of the present invention, an O-ring is used as the rotation control member instead of the shaft spring and spring washer described above. The O-ring is an elastic body and deforms so that its cross-section collapses in response to the load, changing the frictional engagement state between the rotor nut and the cylindrical member in which the O-ring is interposed. That is, when the load is small, the frictional force is small and the cylindrical member does not rotate with the rotor. When the load becomes large, or when a sudden load or an uneven load in the circumferential direction occurs, the frictional force becomes large, and the cylindrical member and the rotor nut can be rotated together.

[0031] According to the configuration of the fifth aspect of the present invention, by applying an O-ring made of an elastic material, the elastic transition can be made smoother even if the elastic properties are nonlinear. Furthermore, since a general-purpose O-ring can be used, it can be obtained inexpensively and easily.

[0032] (6) A sixth aspect of the present invention, in the first and second embodiments, is that the open end of the rotor nut is provided with a sealing member that covers the end of the bearing, the cylindrical member has an enlarged flange portion formed on the side of the sealing member, a circular groove is formed on the surface of the flange portion on the side of the sealing member, a protrusion corresponding to the groove is formed on the surface of the sealing member on the side of the flange portion, and the rotation control member is the engagement of the groove and the protrusion.

[0033] In the sixth embodiment of the present invention, a flange portion is further provided on the cylindrical member, a groove is formed on the flange portion, and a protrusion is formed on the sealing member, thereby engaging the groove on the flange portion of the cylindrical member with the protrusion on the sealing member. This interlocking of grooves restricts radial movement with respect to the rotational direction of the rotor. As a result, when the load is small, the cylindrical member does not rotate with the rotor, and when the load is large, the friction within the grooves increases, allowing the cylindrical member and the rotor to rotate together.

[0034] According to the configuration of the sixth aspect of the present invention, the nonlinear elastic properties required for a rotation control member can be achieved without adding any additional parts. [Effects of the Invention]

[0035] The present invention solves the problems of the prior art described above. When a certain load is applied to the spool shaft and rotor, and the cylindrical member, which is a collar component, and the rotor stop rotating together, the rotation of the rotor can cause the cylindrical member (collar component) to rotate via a rotation control component.

[0036] In other words, when the spool shaft comes into contact with the collar member and a stick-slip occurs, the rotation of the rotor rotates the cylindrical member (collar member) via the rotation control member, and the spool shaft comes into contact with the cylindrical member (collar member), thereby eliminating the stick-slip and providing a spinning reel for fishing in which the reciprocating motion of the spool shaft and the rotation of the rotor can be made smooth. [Brief explanation of the drawing]

[0037] [Figure 1] This is a side view showing the overall configuration of a spinning reel for fishing according to the first embodiment of the present invention. [Figure 2] This is a side cross-sectional view of a spinning reel for fishing according to the first to fourth embodiments of the present invention. [Figure 3] This is a side cross-sectional view of a key part showing details of the rotor receiving portion 100 that constitutes the spinning reel for fishing shown in Figure 2 according to the first embodiment of the present invention. [Figure 4] This is a plan view of a shaft spring according to the first embodiment of the present invention. [Figure 5] This is a side cross-sectional view of a key part showing details of the rotor receiving portion 200 that constitutes the spinning reel for fishing shown in Figure 2 according to a second embodiment of the present invention. [Figure 6] This is a side cross-sectional view of a key part showing details of the rotor receiving portion 300 that constitutes the spinning reel for fishing shown in Figure 2 according to the third embodiment of the present invention. [Figure 7] This is a side cross-sectional view of a key part showing details of the rotor receiving portion 400 that constitutes the spinning reel for fishing shown in Figure 2 according to the fourth embodiment of the present invention. [Modes for carrying out the invention]

[0038] (Description of the first embodiment) Hereinafter, a first embodiment of the spinning reel for fishing according to the present invention will be described with reference to Figures 1 to 4. Figure 1 is a side view showing the overall configuration of the fishing reel according to the first embodiment of the present invention. Figure 2 is a side cross-sectional view of the fishing reel according to the first to fourth embodiments of the present invention. Figure 3 is a side cross-sectional view of the main part showing details of the rotor receiving portion 100 of Figure 2 according to the first embodiment of the present invention. Figure 4 is a plan view of the shaft spring according to the first embodiment of the present invention.

[0039] In the description of the first embodiment and the second to fourth embodiments described thereafter, a common side cross-sectional view including the rotor support parts 100, 200, 300, and 400 that constitute the spinning reel for fishing is shown as Figure 2. Detailed side cross-sectional views of the main parts showing the rotor support parts 100, 200, 300, and 400 are shown as Figures 3 and 5-7. In Figures 3 and 5-7, which show the main parts of the first to fourth embodiments, explanatory diagrams showing side cross-sections of the main parts are used, omitting some of the parts and components shown in Figure 2, in order to avoid complicating the explanation of the configurations that define the invention. Furthermore, Figures 3 and 5-7 are designed to facilitate comparison of the differences in the configurations of the first to fourth embodiments, using the axis X shown in Figure 2 as a reference.

[0040] <Overall configuration of a spinning reel for fishing> Referring to Figure 1, the spinning reel 1 for fishing according to this embodiment is structured such that when the handle 20 is rotated, a bobbin-like part called the spool 40 moves back and forth, and the rotor 30 rotates around the spool 40, winding fishing line (not shown) onto the spool 40. The handle 20 is configured to be attached to either the front or back side of Figure 1.

[0041] Figure 1 shows the spinning reel 1 attached to a fishing rod (not shown). For convenience, in the following explanation, the axis of the spool shaft 15 (see Figure 2), which extends in the direction of line payout (towards the tip of the fishing rod, not shown), will be denoted as XX.

[0042] Referring to Figure 2, the handle shaft 11 is rotatably supported relative to the reel body 10, and the drive gear 13 is mounted on the handle shaft 11 so as to rotate integrally with the handle shaft 11. The drive gear 13 then meshes with a cylindrical pinion gear 19.

[0043] The spool shaft 15 is supported relative to the reel body 10 so as to be movable back and forth in the X-axis direction. The spool shaft 15 is inserted into the inner cylinder of the pinion gear 19 and, by the operation of the oscillating mechanism 17, reciprocates back and forth in the X-axis direction, thereby causing the spool 40 to reciprocate in the back and forth direction.

[0044] The oscillating mechanism 17 is located in the internal space of the reel body 10 and comprises a worm shaft 17a having a helical groove on its outer circumference, a slider 17b, and an intermediate gear 17c. The worm shaft 17a is positioned parallel to the spool shaft 15 and is rotatably supported relative to the reel body 10.

[0045] Slider 17b is fixed to the rear end of the spool shaft 15 (right side in Figure 2) and meshes with the helical groove of the worm shaft 17a. As the worm shaft 17a rotates, slider 17b moves along the helical groove in the forward and backward direction of the machine axis X. Intermediate gear 17c is fixed to the tip of the worm shaft 17a and meshes with the pinion gear 19.

[0046] To summarize the operation of the oscillating mechanism 17, when the handle shaft 11 rotates due to the rotation of the handle 20, the drive gear 13 rotates, and the pinion gear 19 that engages with the drive gear 13 rotates. This rotation is reduced by a predetermined gear ratio by the intermediate gear 17c and transmitted to the worm shaft 17a, causing it to rotate. An engagement pin (not shown) provided on the slider 17b and engaging with a helical groove formed in the worm shaft moves along the helical groove. This movement causes the slider 17b to move in the forward and backward directions, and consequently, the spool shaft 15 moves in the forward and backward directions.

[0047] The rotor 30 is used to wind fishing line (not shown) onto the spool 40. The rotor 30 is positioned at the front of the reel body 10 in the direction of the machine axis X (left side in Figure 2) and is rotatable relative to the reel body 10. The rotor 30 is positioned radially outward of the pinion gear 19 and is rotatable integrally with the pinion gear 19.

[0048] The pinion gear 19 is rotatably supported by the reel body 10 and is positioned radially outward from the spool shaft 15, rotating around the spool shaft 15, i.e., around the axis X. The rotor 30 rotates in conjunction with the rotation of the pinion gear 19.

[0049] <Explanation of rotor support part 100> Next, with reference to Figure 3, the rotor support portion 100 in this embodiment will be described. The rotor support portion 100 is a collective term for the components near the rotor nut 21 that restrict the movement of the rotor 30 in the machine axis X direction relative to the pinion gear 19, and reference numbers have been assigned for convenience in explaining the main parts of each embodiment. The rotation control members 110, 210, 310, and 410 described in the first to fourth embodiments of the present invention are included in the rotor support portions 100, 200, 300, and 400.

[0050] The rotor nut 21 rotates around the spool shaft 15, i.e., around the machine axis X, and restricts the movement of the rotor 30 in the direction of the machine axis X relative to the pinion gear 19 as described above.

[0051] The rotor nut 21 comprises a cylindrical portion 21a and a mounting portion 21b. The cylindrical portion 21a is a cylindrical member formed integrally with the mounting portion 21b and having a larger diameter than the mounting portion 21b. The cylindrical portion 21a extends from the mounting portion 21b forward of the machine axis X (upper side in Figure 3) and is positioned further forward than the front end of the pinion gear 19 in the direction of the machine axis X. A bearing 23 and a cylindrical member 25 which serves as a collar member are disposed radially between the cylindrical portion 21a and the spool shaft 15.

[0052] The mounting portion 21b screws onto the pinion gear 19 at its front end in the X-axis direction, causing the rotor nut 21 to rotate integrally with the pinion gear 19. Furthermore, the rotor contact portion 30a on the radially inner side of the rotor 30 contacts the pinion gear 19, restricting the forward movement of the rotor 30 in the X-axis direction relative to the pinion gear 19.

[0053] The bearing 23 is positioned radially between the spool shaft 15 and the rotor nut 21, in front of the pinion gear 19 in the X-axis direction, and rotatably supports the rotor nut 21 with respect to the spool shaft 15 via a cylindrical member 25. The outer ring of the bearing 23 is integrally and rotatably mounted on the inner circumferential surface of the cylindrical portion 21a of the rotor nut 21. The inner ring is positioned on the outer circumferential surface of the cylindrical member 25. Rolling elements are arranged between the outer and inner rings of the bearing 23.

[0054] The sealing member 50 is formed in an annular shape and is attached to the open end of the cylindrical portion 21a of the rotor nut 21, covering the front end of the bearing 23 in the machine axis X direction, and is positioned in close proximity to (or slightly in contact with) the spool shaft 15, thereby sealing the space between the spool shaft 15 and the rotor receiving portion 100, including the rotor nut 21.

[0055] The retaining member 29 holds the sealing member 50 by positioning it relative to the rotor nut 21, and is held axially by the retaining member 29 and the open end of the cylindrical portion 21a of the rotor nut 21.

[0056] The cylindrical member 25 is a cylindrical member positioned radially between the outer circumferential surface of the spool shaft 15 and the inner ring of the bearing 23, and can be made of metal or a resin such as polyacetal.

[0057] The spool shaft 15 is inserted through the inner circumference of the cylindrical member 25, but a small gap is formed between the inner surface of the cylindrical member 25 and the outer surface of the spool shaft 15. In this state, the spool shaft 15 moves along the inner circumference of the cylindrical member 25 in the front-rear direction of the machine axis X.

[0058] <Description of rotation control member 110> Referring also to Figure 4, the rotation control member 110 is a shaft spring consisting of a first elastic portion 111 formed in the shape of a ring with a notch 113 at its end, and a second elastic portion 112 that is integral with the first elastic portion 111 and extends from one end of the notch 113 in a rod-like shape, bent radially from the ring. In Figure 4, the ring is shown as a single ring, but it can also be applied to cases with multiple overlapping rings or even a semicircle.

[0059] The first elastic portion 111 is positioned around the cylindrical member 25. The second elastic portion 112 engages with the mounting portion 21b of the rotor nut 21. The rotation control member 110 is thus provided on the periphery of the cylindrical member 25.

[0060] When a biasing force exceeding a predetermined level is generated in the centripetal direction in at least a portion of the line, for example, when a fish is hooked and pulls strongly, or when a sudden reversal causes an excessive load to bend the spool shaft 15 through the fishing line, the cylindrical member 25 is pressed.

[0061] The shaft spring, which is the rotation control member 110, does not deform when the load is small. When an excessive load occurs in the centripetal direction of the spool shaft 15, it presses against the cylindrical member 25. Then, the cylindrical member 25 and the rotor nut 21 are connected by frictional force and rotate together.

[0062] In other words, in response to a sudden, nonlinear load, the rotation control member 110 elastically contracts and presses the cylindrical member 25 radially, thereby switching the cylindrical member 25 between integrated rotation with the rotor nut 21 and no rotation, allowing the cylindrical member 25 to rotate together with the rotor nut 21 and the rotor 30.

[0063] According to this embodiment, it is only necessary to arrange a shaft spring with nonlinear elastic properties in relation to the load as the rotation control member 110. With a simple configuration, it is possible to achieve behavior such as pressing or not pressing in response to a load above a certain level, thereby preventing deterioration of the reel's sliding feel and extending the life of the reel itself. Furthermore, the shaft spring, which is the rotation control member 110, can be easily replaced, improving the maintainability of the reel.

[0064] (Description of the second embodiment) Next, a second embodiment of the present invention will be described with reference to Figure 5. Figure 5 is a side cross-sectional view of the main part showing details of the rotor receiving portion 200 that constitutes the spinning reel for fishing shown in Figure 2 according to the second embodiment. In the following description, the description of configurations similar to those of the first embodiment will be omitted, and only configurations with differences will be described.

[0065] In this embodiment, the rotor support portion 200 has a rotation control member 210, which is a spring washer, interposed between the bearing 23 and the sealing member 50. The spring washer has a shape in which a part of the flat washer is cut and twisted. This twist generally provides the effect of preventing loosening and preventing detachment if it loosens.

[0066] The rotation control member 210, which uses a spring washer, exhibits nonlinear elastic properties in its twisted portion, similar to the rotation control member 110 of the first embodiment which uses a shaft spring. Due to these nonlinear elastic properties, at low loads, the cylindrical member 25 rotates together with the rotor 30, and even when a certain load is applied to the spool shaft 15 and rotor 30 (high load), and the cylindrical member 25 and rotor 30 stop rotating together due to the bearing, the rotation control member 210 allows the rotor 30 to move the cylindrical member 25, eliminating any discomfort such as stack slip between the cylindrical member and the spool shaft.

[0067] Furthermore, in this embodiment, since the spring washer, which is the rotation control member 210, is inserted between the sealing member 50 and the vicinity of the end of the bearing 23 and the end of the cylindrical member 25, the sealing effect can be enhanced by making it easier for the rotation control member 210 to follow deformation due to excessive load.

[0068] Furthermore, by contacting the end of the bearing 23 that directly receives the load, rotational restriction due to nonlinear elastic properties can be reliably achieved. In addition, since a general-purpose spring washer can be used, it is readily available.

[0069] (Description of the third embodiment) Next, a third embodiment of the present invention will be described with reference to Figure 6. Figure 6 is a side cross-sectional view of the main part showing details of the rotor receiving portion 300 that constitutes the spinning reel 1 for fishing shown in Figure 2 according to the third embodiment. In the following description, the description of configurations similar to those of the first and second embodiments will be omitted, and only configurations with differences will be described.

[0070] In this embodiment, the rotor support portion 300 has an O-ring, which is a rotation control member 310, placed between the rotor nut 21 and the cylindrical member 25. In this embodiment, an O-ring is used instead of the shaft spring and spring washer that were used as rotation control members 110 and 210 in the first and second embodiments.

[0071] The O-ring of the rotation control member 310 is elastic and deforms so that its cross-section collapses in response to the load. This changes the frictional engagement state between the rotor nut 21 and the cylindrical member 25, in which the rotation control member 310 is interposed. That is, when the load is small, the frictional force is small, so the cylindrical member 25 does not rotate with the rotor 30. When the load is large, or when a sudden load or an uneven load in the circumferential direction occurs, the frictional force increases, allowing the cylindrical member 25 and the rotor nut 21 to rotate together.

[0072] In this embodiment, by applying an O-ring, which is an elastic material, to the rotation control member 310, the elastic transition can be made smoother, even if the elastic properties are nonlinear. Furthermore, since a general-purpose O-ring can be used, it can be obtained inexpensively and easily.

[0073] (Description of the fourth embodiment) Next, a fourth embodiment of the present invention will be described with reference to Figure 7. Figure 7 is a side cross-sectional view of the main part showing details of the rotor receiving portion 400 that constitutes the spinning reel 1 for fishing shown in Figure 2 according to the fourth embodiment. In the following description, the description of configurations similar to those of the first, second, and third embodiments will be omitted, and only configurations with differences will be described.

[0074] In the rotor receiving portion 400 of this embodiment, a flange portion 426 is formed on the cylindrical member 425, which is enlarged on the side facing the sealing member 450, and a circular groove portion 427 is formed on the surface of the flange portion 426 facing the sealing member 450. A protrusion 452 corresponding to the groove portion 427 is formed on the surface of the sealing member 450 facing the flange portion 426. The rotation control member 410 is formed by engaging the groove portion 427 and the protrusion 452.

[0075] In this embodiment, a flange portion 426 is further provided on the cylindrical member 425, and grooves 427 are formed on the flange portion 426 and protrusions 452 are formed on the sealing member 450 at positions opposite to each other, thereby engaging the flange portion 426 and the sealing member 450.

[0076] This interlocking groove restricts radial movement with respect to the rotational direction of the rotor 30. Therefore, when the load is small, the cylindrical member 425 does not rotate with the rotor 30, and when the load is large, the friction within the grooves increases, allowing the cylindrical member 425 and the rotor 30 to rotate together. This embodiment can achieve the nonlinear elastic properties required for the rotation control member 410 without adding any parts.

[0077] Although embodiments of the present invention have been described above, the present invention is not limited to these embodiments and can be modified and used without departing from the spirit of the invention. [Explanation of symbols]

[0078] 1 Spinning reel 10 Reel body 11 Handle shaft 13 Drive Gear 15 Spool shaft 17. Oscillating mechanism 17a Worm shaft 17b Slider 17c intermediate gear 19 Pinion Gear 20 handles 21 Rotor Nut 21a Cylinder part 21b Mounting part 23 Bearings 25,425 cylindrical members 29 Retaining member 30 rotors 40 spools 50 sealing member 100, 200, 300, 400 Rotor support section 110, 210, 310, 410 Rotation control member 111 First Elastic Section 112 Second Elastic Section 113 Notches 426 Flange section 427 Groove 450 sealing member 452 Convex part X axis

Claims

1. A spool shaft that moves back and forth relative to the reel body, A pinion gear that rotates around the spool shaft, A rotor that rotates integrally with the aforementioned pinion gear, A rotor nut is positioned on the periphery of the spool shaft and fixes the rotor to the pinion gear, A bearing is positioned radially between the spool shaft and the rotor nut and rotatably supports the rotor nut, A cylindrical member disposed between the spool shaft and the bearing, A rotation control member that switches the cylindrical member between rotating integrally with the rotor nut and not rotating, A spinning reel for fishing equipped with [features / equipment].

2. The rotation control member is provided on the periphery of the cylindrical member and elastically contracts in response to a biasing force of a predetermined or greater magnitude in the centripetal direction in at least a portion of it, thereby pressing the cylindrical member radially and causing the cylindrical member to rotate together with the rotor nut. A spinning reel for fishing according to claim 1.

3. The rotation control member is A first elastic portion formed in a ring shape with a notch at the end and A shaft spring comprising a first elastic portion and a rod-shaped second elastic portion that is integral with the first elastic portion and extends from the notch in a bent direction radially from the ring, The first elastic portion is arranged around the cylindrical member, The second elastic portion is engaged with the rotor nut. A spinning reel for fishing according to claim 1 or 2.

4. The spool shaft is annularly arranged and includes a sealing member that covers the bearing and the rotor nut, The rotation control member is a spring washer inserted between the sealing member and the end of the bearing and the end of the cylindrical member. A spinning reel for fishing according to claim 1 or 2.

5. The rotation control member is an O-ring positioned between the rotor nut and the cylindrical member. A spinning reel for fishing according to claim 1 or 2.

6. The open end of the rotor nut is provided with a sealing member that covers the end of the bearing. The cylindrical member has an enlarged flange portion formed on the side of the sealing member. A circular groove is formed on the side of the flange portion that is on the sealing member side. A protrusion corresponding to the groove is formed on the surface of the sealing member on the flange side. The rotation control member is the engagement of the groove and the protrusion. A spinning reel for fishing according to claim 1 or 2.

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