JP5244025B2 - Fishing reel - Google Patents

Description

  The present invention relates to a fishing reel that incorporates a rolling one-way clutch to prevent reverse rotation of a rotary drive shaft.

  Usually, a fishing reel is configured to wind a fishing line around a spool via a power transmission mechanism by rotating a handle. For example, in a spinning reel as a fishing reel, a rotor having a fishing line guide portion is rotated via a rotation drive shaft by a rotating operation of a handle, and a fishing line is wound around a spool. Further, such a fishing reel is equipped with a reverse rotation prevention device so that the rotor does not reverse due to the feeding of the fishing line wound around the spool during actual fishing.

  As such a reverse rotation prevention device, a device using a rolling one-way clutch is generally known in order to reduce the degree of reverse rotation at the time of fishing operation and improve the reliability of the hooking operation.

  Such a rolling one-way clutch, as disclosed in, for example, Patent Literature 1 and Patent Literature 2, rotatably supports a rotary drive shaft in a cylindrical support portion integrally formed on the front portion of the reel body. It is housed and supported together with the bearing.

JP 2002-354974 A JP 2003-265078 A

  Since the reel structure disclosed in Patent Document 1 and Patent Document 2 has a configuration in which a cylindrical support portion that accommodates the rolling one-way clutch and the bearing is integrally formed to protrude from the front portion of the reel body, There is a problem in that the support portion is made of the same material as the reel body and is easily restricted in terms of dimensions and shape, and the weight is increased.

  Moreover, since the said cylindrical support part needs to accommodate and support both a rolling type one-way clutch and a bearing, the depth (accommodation space) becomes large. Therefore, at the time of assembly, the rolling type one-way clutch must be accommodated and supported in the deep cylindrical support part, and the rotation drive shaft and the cylindrical support part obstruct the assembly of the rolling type one-way clutch. There is a case. This is a factor that deteriorates the workability of assembly and disassembly during manufacturing, maintenance and repair.

  The present invention has been made paying attention to the above circumstances, and the object of the present invention is to reduce the weight and improve the workability of incorporating and disassembling the rolling one-way clutch. The object is to provide a fishing reel.

In order to solve the above-described problems, the present invention provides a rolling one-way clutch that allows rotation in one direction and prevents rotation in the other direction between a rotary drive shaft that is rotated by a handle and the reel body. In the fishing reel configured to prevent reverse rotation of the rotary drive shaft, the front side and the rear side of the pinion tooth portion of the rotary drive shaft are each supported by a bearing provided on a support portion formed integrally with the reel body. A rolling one-way clutch is disposed on the rotational drive shaft on the front side of the bearing disposed on the front side of the pinion tooth portion, and the outer ring of the rolling one-way clutch is substantially blocked by the insertion of the rotational drive shaft. Forming a substantially cylindrical body having a closed end portion and an open end portion on the opposite side, and arranged with the open end portion facing a bearing disposed on the front side of the pinion tooth portion, and the outer ring Before The detent engagement portion formed on the open end and prevented from rotating the outer ring relative to the reel body by engaging the engaging portion of the reel main body, the reel main body cover surrounding the rolling type one-way clutch It is characterized by being fixed to the front part of the.

According to the above configuration, the cylindrical support portion having a depth for accommodating and supporting both the rolling type one-way clutch and the bearing is not provided integrally with the reel body. Instead, the rolling type one-way clutch and the bearing are separately provided. The structure which accommodated and supported and excluded the integrity with the reel main body of the accommodating and supporting part is employ | adopted. Specifically, while the bearing is supported by the support portion of the reel body, the rolling one-way clutch is not supported by the reel body and is not supported by the reel body. Is enclosed and protected by a separate cover. Thus, by making the cover body separate from the reel body, it is possible to reduce the weight of the cover body by making the material of the cover body different from the material of the reel body (removing restrictions on dimensions and shapes). As a result, it is possible to reduce the weight of the entire reel while maintaining good rotation performance and a reliable reverse rotation prevention function. In addition, since the receiving portion of the bearing that supports the rotation drive shaft and the rolling one-way clutch that performs reverse rotation prevention are separated from each other (therefore, it is necessary to incorporate the one-way clutch into the deep cylindrical support portion. Therefore, the workability of incorporating and disassembling a rolling one-way clutch is significantly improved. Further, according to the above configuration, the detent locking portion is formed at the open end of the outer ring of the one-way clutch and is engaged with the engaging portion, and the open end of the outer ring having the detent locking portion is Since it is located on the side facing the bearing arranged on the front side of the pinion tooth part, the open end of the outer ring faces away from the bearing (the closed end of the outer ring faces the bearing) Compared to the above, the axial extension length of the switching element of the switching operation mechanism including the switching operation lever can be shortened, and hence the axial dimension of the reel can be shortened (reel size can be reduced). ) And a corresponding reduction in weight. Furthermore, according to this configuration, the cover body surrounding the outer ring of the rolling one-way clutch is thinned, and the specific gravity of the cover body is low (if the reel body is an aluminum alloy, the cover body is made of synthetic resin. Etc.) can be selected, and the weight can be reduced as much as possible.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to achieve weight reduction, the reel for fishing which can improve the workability | operativity of mounting / disassembling of a rolling type one-way clutch can be provided.

It is a side view with the partial cross section of the fishing reel which concerns on the 1st Embodiment of this invention. It is a principal part expanded sectional view of the fishing reel of FIG. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is sectional drawing which follows the CC line of FIG. It is a partial expanded sectional view of the engagement area | region of the rotation stop latching | locking part of the outer ring | wheel of a rolling type one-way clutch, and the engagement part of a retaining member. It is sectional drawing which follows the DD line | wire of FIG. FIG. 3 is an enlarged cross-sectional view of a main part, further expanding FIG. It is a principal part expanded sectional view of the fishing reel which concerns on the 2nd Embodiment of this invention. It is sectional drawing which follows the EE line | wire of FIG. It is sectional drawing which follows the FF line | wire of FIG.

  Hereinafter, embodiments of a fishing reel according to the present invention will be specifically described with reference to the accompanying drawings.

  1 to 8 show a spinning reel as a fishing reel according to a first embodiment of the present invention. As shown in FIG. 1, a reel leg 1 (for example, formed of metal) of a spinning reel according to the present embodiment is integrally formed with a reel leg 2 attached to a fishing rod. A rotor 3 that is rotatably supported and a spool 4 that is supported to be able to move back and forth in synchronization with the rotational motion of the rotor 3 are disposed.

  The rotor 3 includes a pair of arm portions 3a (only one is shown in FIG. 1) that rotates around the spool 4, and a base of a bail 3b is provided at each front end portion of each arm portion 3a. A bail support member 3c having an end attached thereto is rotatably supported between a fishing line winding position and a fishing line discharge position. Note that one base end portion of the bail 3b is attached to a fishing line guide portion (not shown) provided integrally with the bail support member 3c.

  A handle shaft 5 is rotatably supported in the reel body 1, and a handle 6 is attached to the protruding end portion. The handle shaft 5 is engaged with a take-up drive mechanism. The take-up drive mechanism has a drive gear 7 mounted on the handle shaft 5 so as to be integrally rotatable, and a pinion meshing with the drive gear 7. A pinion 8 serving as a rotational drive shaft having a tooth portion 8a and extending in a direction orthogonal to the handle shaft 5 and having a hollow portion extending in the axial direction therein is provided.

  The pinion 8 is provided on the support part 1a integrally formed on the reel body on the front side and the rear side of the pinion tooth part 8a, specifically, by bearings 9 and 9 'fitted and supported on the support part 1a. The reel body 1 is rotatably supported. Further, the pinion 8 extends toward the spool 4 side, and the rotor 3 is attached to the tip portion thereof. Note that one end of the bearing 9 on the front side of the pinion tooth portion 8a is abutted against the front end of the pinion tooth portion 8a, and the other end is secured by a retaining member 37 inserted between the rolling one-way clutch 10 described later. Is retained in the axial direction. On the other hand, the rear bearing 9 ′ of the pinion tooth portion 8 a is fixed in the axial direction by being sandwiched between the rear end of the pinion tooth portion 8 a and the support portion 1 a of the reel body 1.

  A rolling one-way clutch 10 is attached (arranged) on the front pinion 8 of the bearing 9 disposed on the front side of the pinion tooth portion 8a, and a switching operation provided outside the reel body 1 is performed. By rotating the lever 11, the one-way clutch 10 is actuated to constitute a known reverse rotation prevention mechanism (stopper) that prevents the handle 6 (rotor 3) from rotating backward in the fishing line feeding direction.

  A spool shaft 12 extending in a direction perpendicular to the handle shaft 5 and having the spool 4 mounted on the tip side is inserted into the hollow portion formed in the pinion 8 so as to be movable in the axial direction. The pinion 8 is engaged with a known spool reciprocating device 13 for reciprocating the spool 4 (spool shaft 12) back and forth.

  In the fishing spinning reel having such a configuration, when the winding operation is performed by the handle 6, the rotor 3 is driven to rotate through the winding drive mechanism, and the spool 4 is moved through the spool reciprocating device 13. Since it is reciprocated back and forth, the fishing line is evenly wound around the winding body 4a of the spool 4 via the fishing line guide.

  As shown in FIG. 2, the rolling one-way clutch 10 includes an inner ring 21 that is non-rotatably fitted to the pinion 8, a cage 27 that is disposed outside the inner ring 21, and an outer side of the cage 27. The outer ring 25 is disposed on the outer periphery of the outer ring 25 and the outer periphery thereof is surrounded and protected by a substantially cylindrical protective cover (cover body) 50 described later.

  On the inner peripheral surface of the outer ring 25, a free rotation region where the plurality of rolling members 28 held by the cage 27 can freely rotate and a wedge region which prevents the rotation of the plurality of rolling members are formed. Each rolling member 28 is urged toward the wedge region by a spring member provided in the cage 27.

  The outer ring 25 forms a substantially cylindrical body having a closed end 25c that is substantially closed by the insertion of the pinion 8 therethrough and an open end 25b on the opposite side, and the bearing 9 and the rolling one-way clutch. Rotation with respect to the reel body 1 is prevented by the retaining member 37 inserted between Specifically, as clearly shown in FIG. 3, a pair of engaging portions 37 a projecting radially outwards are provided in the circumferential direction on a part of the retaining member 37 in the form of an annular ring in the circumferential direction. They are provided at an angular interval of 180 degrees, and these engaging portions 37a are locked to a notch-shaped detent locking portion 25a of the outer ring 25 provided at a corresponding position. Then, by screwing the screw 30 attached to the engaging portion 37a into the reel body 1 (see FIGS. 3, 5, 6 and 7), the outer ring 25 is attached to the reel body 1 via the engaging portion 37a. It has been stopped. In the present embodiment, the locking stopper 25 a is formed at the open end 25 b of the outer ring 25 and is engaged with the engaging portion 37 a of the retaining member 37. That is, in the present embodiment, the outer ring 25 is disposed in a state where the open end portion 25 b faces the bearing 9. Therefore, in this embodiment, the retaining member 37 is fitted into the cylindrical outer ring 25 through the open end 25b in order to shorten the axial dimension of the reel (see FIG. 2).

  As described above, in this embodiment, the anti-rotation locking portion 25a formed on the outer ring 25 of the rolling one-way clutch 10 is formed on the retaining member 37 that prevents the bearing 9 that rotatably supports the pinion 8 from coming off. The outer ring 25 of the one-way clutch 10 is prevented from rotating around the reel body 1 through the retaining member 37. The annular retaining member 37 prevents the bearing 9 from coming off in the axial direction by the retaining portion 37b on the inner peripheral side thereof coming into contact with the outer ring 9a of the bearing 9 (see FIGS. 3, 5 and 6). .

  In the one-way clutch 10 having such a configuration, when the inner ring 21 rotates forward together with the pinion 8 (the rotor 3 rotates in the fishing line winding direction), the rolling member 28 of the retainer 27 is positioned in the free rotation region of the outer ring 25. Therefore, the rotational force of the inner ring 21 is not transmitted to the outer ring 25 (not blocked by the outer ring 25), and thus the rotor 3 rotates together with the pinion 8 without any trouble. On the other hand, when the inner ring 21 is rotated together with the pinion 8 (the rotor 8 rotates in the direction of feeding the fishing line), the rolling member 28 of the retainer 27 is located in the wedge region of the outer ring 25. The force is transmitted to the outer ring 25, which serves as a stopper and prevents the pinion 8 and the rotor 3 from rotating (reversely rotating).

  The operation of the reverse rotation preventing mechanism with such a one-way clutch 10 can be controlled by the switching operation lever 11. Specifically, as shown in FIGS. 2 and 3, the switching operation lever 11 has a switching cam 33 that extends substantially parallel to the spool shaft 12 in the reel body 1, and the tip of the switching cam 33. The protrusion 33 a is engaged with and connected to the engagement hole 52 of the extension 27 a extending in the radial direction of the cage 27. Therefore, in this configuration, when the cage 27 is rotated via the switching cam 33 by rotating the switching operation lever 11, the rolling member 28 held by the cage 27 is attached to the spring member. A reversible position where the rotor 3 is forcibly held in the free rotation region of the outer ring 25 against the force (a position where the rotor 3 can be rotated in reverse), and the rolling member in the wedge region of the outer ring 25 by the biasing force of the spring member It is possible to selectively switch between a reverse rotation preventing position (a position where reverse rotation of the rotor 3 is prevented) to be positioned.

  As clearly shown in FIG. 8, the protective cover 50 that protects the one-way clutch 10 from the outer periphery is made of, for example, resin and is detachably attached to the reel body 1. Specifically, the protective cover 50 includes an outer surrounding portion 50a positioned on the radially outer side, an inner surrounding portion 50b positioned on the radially inner side, and a front end connecting portion 50c that connects these surrounding portions 50a and 50b. A reel main body that extends on the outer peripheral side of the one-way clutch 10 by introducing a bolt 139 that is removably inserted into the front end connecting portion 50c into a space between the outer surrounding portion 50a and the inner surrounding portion 50b. By being screwed into the screw hole 140 at the end of one extending portion 1b, the reel body 1 can be detachably attached in the form of a so-called cap screw. In this case, the bolt 139 is screwed into the screw hole 140 until the end surface of the inner surrounding portion 50b hits the end surface of the extending portion 1b of the reel body 1. As a result, the reel main body 1 is formed with a concave recess 240 for partially accommodating the pinion 8 (and / or the inner ring 21 rotating integrally therewith) as a drive member that rotates in conjunction with the operation of the handle 6. Is done. The housing recess 240 houses and holds the one-way clutch 10 in a positioned state and has an opening 240a on the front side facing the spool 4 side. In addition, since there is a possibility that moisture, foreign matter or the like may enter the opening 240a, a magnetic seal mechanism 150, which will be described later, for sealing the opening 240a is provided. By attaching and fixing the protective cover 50 to the reel body 1 in this way, the one-way clutch 10 housed in the housing recess 240 is held in a state restricted in the axial direction.

  A seal member 170 such as an O-ring is interposed between the end face of the outer surrounding portion 50a and the reel body 1. Further, on the outer peripheral surface of the outer surrounding portion 50a of the protective cover 50, a screw portion 59 for screwing with a tool (not shown) used for attaching and detaching the protective cover 50 to and from the reel body 1 is formed. .

  The magnetic seal mechanism 150 that seals the inside of the housing recess 240 includes a magnet 151 disposed so as to surround the pinion 8 with a predetermined gap, a holding member (magnetic ring) 152 that holds the magnet 151, An inner ring 21 as a magnetic body that is fitted (externally fitted) to the reel body 1 to form a magnetic circuit with the magnet 151 (and thus has at least an axial length facing the holding member 152), and a magnet 151 And a magnetic fluid 155 held between the inner ring 21 and the inner ring 21 as a single unit.

  In this case, the magnet 151 is formed in a ring shape having a predetermined thickness so that the pinion 8 can be inserted, and the holding member 152 holds the magnet 151 so formed from both sides. Configured to hold.

  The holding member 152 is formed so as to hold and hold the ring-shaped magnet 151, and a recess 151 </ b> A is formed inside the holding member 152 along the circumferential direction, and is supported by the protective cover 50 together with the magnet 151. Specifically, the holding member 152 is sandwiched and held between the head of the bolt 139 that is in contact with one side of the holding member 152 and the stepped portion of the protection cover 50 that is in contact with the other side. A sealing member 169 is interposed between the holding member 152 and the holding member 152. The holding member 152 is configured such that a slight gap G is generated between the holding member 152 and the outer surface of the inner ring 21 as a magnetic body.

  The inner ring 21 as a magnetic body is formed of an iron-based material, for example, steel, SUS430, SUS440C, SUS630, and the like, and thereby, between the holding member 152 and the inner ring 21 that holds the magnet 151. A magnetic circuit is formed.

The magnetic fluid 155 is configured by dispersing magnetic fine particles such as Fe ₃ O ₄ in a surfactant and a base oil, and has a characteristic of reacting when the magnet is brought close to the magnet. . For this reason, the magnetic fluid 155 is stably held in the recess 151A and the gap G by the magnetic circuit formed by the magnet 151, the holding member 152 that holds the magnet 151, and the inner ring 21 as a magnetic body. Then, the opening 240a is sealed.

  As described above, according to the fishing reel of the present embodiment, the cylindrical support portion having a depth for accommodating and supporting both the rolling type one-way clutch 10 and the bearings 9 and 9 ′ is integrated with the reel body 1. Instead, the rolling type one-way clutch 10 and the bearings 9 and 9 'are separately housed and supported, and the construction of the housing / support part with the reel body 1 is partially eliminated. doing. Specifically, the bearings 9 and 9 ′ are supported by the support portion 1 a of the reel body 1, while the rolling one-way clutch 10 is not supported by the reel body 1 to prevent rotation but prevents the outer ring 25 of the clutch 10 from coming off. The outer periphery 25 of the outer ring 25 of the rolling one-way clutch 10 is surrounded and protected by a protective cover 50 separate from the reel body 1 while being locked to the reel body 1 by the member 37. Thus, by making the protective cover 50 separate from the reel body 1, the material of the protective cover 50 can be made different from the material of the reel body 1 to reduce the weight of the protective cover (dimensionally and shapeally). As a result, it is possible to reduce the weight of the entire reel while maintaining good rotation performance and reliable non-return function. Further, since the receiving portions of the bearings 9 and 9 'for supporting the pinion 8 as the rotational drive shaft and the rolling type one-way clutch 10 for preventing the reverse rotation are separated from each other (therefore, a cylindrical support having a depth is provided). Since it is not necessary to incorporate a one-way clutch in the part), the workability of assembling / disassembling the rolling one-way clutch 10 is significantly improved. The protective cover 50 is removed from the reel body 1 when the rolling one-way clutch 10 is assembled / disassembled. In this case, since the extending portion 1b of the reel body 1 does not extend long in the axial direction, the rolling type one-way clutch 10 can be easily assembled and disassembled.

  Further, in the present embodiment, the anti-rotation locking portion 25a is formed at the open end 25b of the outer ring 25 of the one-way clutch 10 and is engaged with the engagement portion 37a of the retaining member 37, that is, Since the open end portion 25b of the outer ring 25 having the locking engagement portion 25a is located on the side facing the bearing 9 that rotatably supports the pinion 8, the open end portion 25b of the outer ring 25 is separated from the bearing 9 by a surface. Compared to the arrangement configuration (the closed end 25c of the outer ring 9 faces the bearing 9), the axially extending length of the switching elements 33, 33a of the switching operation mechanism including the switching operation lever 11 is shortened. Therefore, the axial dimension of the reel can be shortened (the reel can be miniaturized) and the weight can be reduced accordingly. Furthermore, according to this configuration, the protective cover 50 that surrounds the outer ring 25 of the rolling one-way clutch 10 can be made thinner and resinized, and the weight can be reduced as much as possible. Furthermore, since the center of gravity of the entire reel is also behind (on the side opposite to the spool 4) with respect to the prior art, the center of gravity can be brought close to the base of the reel leg 2 attached to the collar, Operability is improved.

  9 to 11 show a spinning reel as a fishing reel according to a second embodiment of the present invention. As shown in FIG. 9, in the spinning reel according to the present embodiment, the inner surrounding portion 50b of the protective cover 50 and the extending portion 1b of the reel body 1 are eliminated, and the front holding is performed instead of the inner surrounding portion 50b. A rear holding portion 1b ′ is provided instead of the portion 50b ′ and the extending portion 1b, and the position of the outer ring 25 of the one-way clutch 10 is efficiently held while reducing the weight, thereby improving the smoothness of rotation. The effect of reducing abnormal noise and reducing the strength load on the stop member 37 is obtained. Of course, when weight reduction is given the highest priority, the front holding part 50b 'and the rear holding part 1b' may be completely eliminated. Further, in place of the threaded portion 59 on the outer peripheral surface of the outer surrounding portion 50a, a concavo-convex shape 59 ′ that facilitates manual rotation operation and increases the specific rigidity is provided on the outer peripheral surface of the outer surrounding portion 50a (see also FIG. 10). ). Further, the protective cover 50 is detachably attached to the reel body 1 by the female screw part 160 at the end of the outer surrounding part 50 a being screwed into the male screw part 162 of the reel body 1. As a result, separate parts (for example, screws) for fixing the protective cover 50 become unnecessary, and the inner surrounding portion 50b of the protective cover 50 and the extending portion 1b of the reel body 1 are eliminated. A lighter weight is obtained. Furthermore, a sealing member 190 made of a rubber ring or the like is attached in advance to the opening 240a of the housing recess 240 formed by the protective cover 50, so that the sealed state in the housing recess 240 is easily secured ( Therefore, it is convenient for maintenance and repair. Other configurations are the same as those in the first embodiment. Accordingly, even with such a configuration, it is possible to obtain the same operational effects as those of the first embodiment.

  It goes without saying that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications without departing from the gist thereof. For example, in the above-described embodiment, the direction of the outer ring 25 of the rolling one-way clutch 10 is such that the opening side is facing backward, but the direction may be opposite, and the present invention is applied to a spinning reel. Needless to say, the present invention can be applied to other reels including a dual-bearing type reel, and the type of the reel is not limited.

DESCRIPTION OF SYMBOLS 1 Reel body 1a Support part 4 Spool 6 Handle 8 Pinion (rotary drive shaft)
8a Pinion tooth portion 9, 9 'Bearing 10 Rolling one-way clutch 25 Outer ring 25b Open end portion 25c Closed end portion 37 Retaining member 37a Engaging portion 50 Cover

Claims (1)

A rolling one-way clutch that allows rotation in one direction and prevents rotation in the other direction is provided between the rotation drive shaft that is rotated by the handle and the reel body to prevent reverse rotation of the rotation drive shaft. In the fishing reel
The front side and the rear side of the pinion tooth portion of the rotary drive shaft are each supported by a bearing provided in a support portion integrally formed with the reel body,
A rolling one-way clutch is disposed on the rotational drive shaft on the front side of the bearing disposed on the front side of the pinion tooth portion ,
The outer ring of the rolling one-way clutch forms a substantially cylindrical body having a closed end substantially closed by insertion of the rotary drive shaft and an open end opposite to the closed end, and the open end is connected to the pinion It is arranged in a state facing the bearing arranged on the front side of the tooth part,
The outer ring is prevented from rotating with respect to the reel body by engaging the detent locking part formed at the open end of the outer ring with the engaging part on the reel body side,
A fishing reel comprising: a cover body surrounding the rolling one-way clutch fixed to a front portion of a reel body.

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