JP2009000078A - Spinning transmission mechanism for spinning reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spinning transmission mechanism ensuring the engagement between a master gear and a pinion gear to be made easily adjustable through suppressing the variation in the engagement condition from the outside of a spinning reel body. <P>SOLUTION: An engagement-adjusting mechanism 20 is provided, which is set up in between a bearing 16b and the spinning reel body 2 in contact with both of them on the outer circumferential side of a master gear shaft 10 and functions to adjust the engagement between the master gear 11 and the pinion gear 12. This mechanism 20 includes a circular first adjusting member 21 joined irrotatably to the spinning reel body, a circular second adjusting member 22 fitted rotatably onto the master gear shaft and having a projection 22a enabling making a rotating operation from the outside of the spinning reel body, and a cam mechanism 23 set up in between the first adjusting member 21 and the second adjusting member 22 and functioning to make a relative movement stepwise in the direction of making the first adjusting member 21 and the second adjusting member 22 go apart from each other by the rotation of the second adjusting member 22. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rotation transmission mechanism, and more particularly to a spinning reel rotation transmission mechanism that transmits rotation from a handle to a rotor rotatably mounted on a reel body of a pinning reel.

  A handle is rotatably supported on the reel body of the spinning reel, and the rotation of the handle is transmitted to a rotor that rotates about a spool shaft that is different from the handle. The rotation transmission mechanism includes a master gear shaft supported by the reel body so as to be rotatable integrally with the handle, a master gear provided so as to be integrally rotatable on the outer peripheral side of the master gear shaft, and a pinion gear meshing with the master gear. Have. For example, both ends of the master gear shaft are supported on the reel body by bearings. The master gear has a tooth portion in the form of a face gear, for example, and the tooth portion meshes with the pinion gear.

  In the rotation transmission mechanism having such a configuration, it is necessary to adjust the meshing between the master gear and the pinion gear. Specifically, an adjustment washer with a different washer-shaped thickness is mounted between the bearing and the master gear, and after the reel assembly work is completed, the handle is rotated to check for the rattling or light weight of the rotor. While judging whether or not the mesh is good. If the mesh is poor, reassemble and reassemble the adjustment washer. Generally manufactured reel bodies, master gear shafts, and pinion gears have substantially the same shape characteristics for each lot to be produced. Therefore, normally, such adjustment is performed for each lot, and the thickness and number of adjustment washers are determined for each lot, and this adjustment operation is not performed thereafter.

  However, if it becomes necessary to readjust during assembly, it is troublesome to perform disassembly and assembly work each time. Therefore, a rotation transmission mechanism having a meshing adjustment mechanism that can perform meshing adjustment from the outside of the reel body is conventionally known (see, for example, Patent Document 1).

The conventional meshing adjustment mechanism has a cylindrical adjustment member that is disposed outside the two bearings by being screwed onto the inner peripheral surface of the master gear shaft support portion of the reel body. An operation portion capable of locking the tool is formed at the outer base end of the adjustment member. In the conventional rotation transmission mechanism having such a configuration, a special tool in a ring shape is engaged with the operation portion, the adjustment member is rotated, and the axial position of the master gear shaft is finely adjusted to adjust the position between the master gear and the pinion gear. Adjust the mesh. When the meshing adjustment is completed, a lock nut is screwed on the outside to prevent the adjustment member from rotating.
Japanese Utility Model Publication No. 6-23455.

  In the conventional configuration, since the adjustment member is screwed into the reel body, the rotation is prevented using a lock nut. Therefore, after the adjustment is completed, it is necessary to further perform a detent work by the lock lot. For this reason, each time the reel is assembled, the adjustment member screwing operation and the lock nut screwing operation must be performed, and the engagement adjustment operation is troublesome. Moreover, since the meshing is adjusted by screwing, depending on the accuracy of the screw, the meshing state may be adjusted for each adjustment operation, and the meshing state may vary.

  SUMMARY OF THE INVENTION An object of the present invention is to make it possible to easily adjust the meshing between a master gear and a pinion gear from the outside of a reel body while suppressing the variation of the meshing state in a spinning reel rotation transmission mechanism.

  A spinning reel rotation transmission mechanism according to a first aspect of the present invention is a mechanism for transmitting rotation from a handle to a rotor that is rotatably mounted on a reel body of a spinning reel, and includes a master gear shaft, a master gear, and a first bearing. And a pinion gear and a meshing adjustment mechanism. The master gear shaft is a shaft that is rotatably mounted inside the reel body so as to rotate together with the handle. The master gear is provided on the outer peripheral side of the master gear shaft so as to be integrally rotatable, and has gear teeth on one surface in the axial direction of the master gear shaft. The first bearing is disposed between the other axial surface of the master gear and the reel body, and supports the master gear shaft. The pinion gear and the master gear are arranged in different directions, mesh with the gear teeth of the master gear, and the rotor is connected to be integrally rotatable. The meshing adjusting mechanism is disposed between the first bearing and the reel body on the outer peripheral side of the master gear shaft so as to contact both, and adjusts the meshing between the master gear and the pinion gear. The meshing adjustment mechanism includes an annular first adjustment member that is non-rotatably connected to the reel body, and an annular second adjustment member that is rotatably attached to the master gear shaft and has an operation unit that can be rotated from the outside of the reel body. A cam mechanism provided between the member and the first adjustment member and the second adjustment member, wherein the first adjustment member and the second adjustment member are moved relative to each other in a stepwise direction by rotation of the second adjustment member; ,have.

  In this rotation transmission mechanism, when the second adjustment member of the meshing adjustment mechanism is rotated by using a tool or the like as the operation portion, the other adjustment member with respect to one of the first and second adjustment members in contact with the reel body Move relative to each other step by step in the direction of separation. Then, the first bearing is pressed stepwise by the other adjustment member, and the master gear moves to the pinion gear side stepwise via the first bearing. When adjusting the meshing with the pinion gear, the optimum meshing stage is found while observing the rotation of the rotor by one stage for each lot. If the optimum meshing stage is found, the other reels in the lot are adjusted to the optimum stage found. Here, when the second adjustment member is rotated from the outside of the reel body, the first adjustment member and the second adjustment member can be relatively moved in a stepwise direction by the cam mechanism. Therefore, when the second adjusting member is rotated stepwise and relatively moved to find the optimum step, the other reels can be easily brought into the same meshing state only by adjusting to the same step. For this reason, the meshing between the master gear and the pinion gear can be easily adjusted to the same meshing state from the outside of the reel body.

  A spinning reel rotation transmission mechanism according to a second aspect of the present invention is the mechanism according to the first aspect of the present invention, wherein the cam mechanism is formed in a stepped manner at one of the first adjustment member and the second adjustment member with an interval in the circumferential direction. A cam portion having a plurality of flat cam surfaces, and a cam receiving portion formed on one of the first adjustment member and the second adjustment member so as to engage with the cam surface. In this case, since the cam surface is flat, the adjustment member moves in a stepwise direction every time the cam receiving portion is engaged with a plurality of cam surfaces. realizable.

  A spinning reel rotation transmission mechanism according to a third aspect of the present invention is the mechanism according to the second aspect, wherein the cam portion further includes an inclined surface formed between the plurality of cam surfaces so as to smoothly connect adjacent cam surfaces. . In this case, since the plurality of cam surfaces are smoothly connected by the inclined surface, the rotation operation of the second adjustment member is facilitated.

  A spinning reel rotation transmission mechanism according to a fourth aspect of the present invention is the mechanism according to the second or third aspect, wherein a plurality of cam surfaces are formed at intervals in the circumferential direction. In this case, since a plurality of sets of the plurality of cam surfaces are formed, the first adjustment member and the second adjustment member come into contact at a plurality of locations. For this reason, it becomes difficult for the cam mechanism to tilt in the direction orthogonal to the axial direction, and the master gear can be finely adjusted with high accuracy.

  A spinning reel rotation transmission mechanism according to a fifth aspect of the present invention is the mechanism according to any one of the second to fourth aspects, wherein the cam receiving portion has protrusions that selectively contact a plurality of cam surfaces. In this case, since the cam receiving portion is constituted by the protrusion, the configuration of the cam receiving portion is simplified.

  The spinning reel rotation transmission mechanism according to a sixth aspect of the present invention is the mechanism according to any one of the first to fifth aspects, wherein the first bearing includes an outer ring mounted on the reel body and an inner ring mounted on the master gear shaft. The second adjustment member is arranged to be able to contact the outer ring. In this case, the second adjusting member contacts the outer ring which is mounted on the reel body and is difficult to rotate, so that the second adjusting member does not change to the adjusted engagement state after the adjustment.

  A spinning reel rotation transmission mechanism according to a seventh aspect of the present invention is the mechanism according to any one of the first to sixth aspects, wherein the second bearing is disposed between one surface of the master gear and the reel body and supports the master gear shaft. Is further provided. In this case, since both ends of the master gear shaft can be supported by the two bearings, even if a force is applied to the master gear from the pinion gear side, the master gear is not easily tilted, and the meshing accuracy can be improved.

  A spinning reel rotation transmission mechanism according to an eighth aspect of the invention is the mechanism according to any one of the second to seventh aspects, wherein the first adjustment member is integrally formed with the reel body, and the cam portion or The cam receiver is integrally formed with the reel body. In this case, since the first adjustment member and the cam mechanism provided thereon are integrally formed with the reel body, the configuration of the meshing adjustment mechanism is simplified.

  According to the present invention, when the second adjustment member is rotated from the outside of the reel main body, the first adjustment member and the second adjustment member can be relatively moved in a stepwise direction by the cam mechanism. Therefore, when the second adjustment member is rotated stepwise and moved relative to one reel to find the optimum step, the other reels can be easily brought into the same meshing state only by adjusting to the same step. For this reason, the meshing between the master gear and the pinion gear can be easily adjusted to the same meshing state from the outside of the reel body.

<Overall configuration of spinning reel>
1 and 2, a spinning reel adopting an embodiment of the present invention is a reel that is attached to a fishing rod and feeds a fishing line forward, and includes a reel body 2 that can be attached to the fishing rod, and a master gear shaft 10. The rotation transmission mechanism 5 has a handle assembly (an example of a handle) 1 that can be connected to at least one end of a master gear shaft 10 so as not to rotate, a rotor 3, and a spool 4. The rotor 3 is rotatably supported at the front portion of the reel body 2 and rotates in conjunction with the rotation of the master gear shaft 10. The spool 4 is movable back and forth with respect to the reel body 2, and a fishing line is wound around the outer periphery by the rotation of the rotor 3.

<Configuration of reel body 2>
The reel body 2 includes a reel body 2a having an opening 2c on the left side, a T-shaped hook mounting leg 2b integrally extending diagonally upward and forward from the reel body 2a, and a lid for closing the opening 2c of the reel body 2a. And a body 2d.

  The reel body 2a has a space inside, and the rotation transmission mechanism 5 is provided in the space. Further, an oscillating mechanism 6 for winding the fishing line around the spool 4 uniformly is also provided in the space.

  As shown in FIG. 2, a cylindrical boss portion 17a is formed on the right side surface of the reel body 2a in FIG. The boss portion 17a is formed to protrude inward and outward of the reel body 2a in order to accommodate a bearing (an example of a second bearing) 16a that supports the right end of the master gear shaft 10 in FIG.

  A boss portion 17b is formed at a position facing the boss portion 17a of the lid 2d. The boss portion 17b is formed so as to protrude outward from the reel body 2a in order to accommodate a bearing (an example of a first bearing) 16b that supports the left end of the master gear shaft 10 in FIG. As shown in an enlarged view in FIG. 3, a circular inner wall portion 17g is formed inside the boss portion 17b, and a pair of locking grooves 17h, for example, are formed on the inner peripheral surface. The locking groove 17 h is formed along the axial direction of the master gear shaft 10.

  As shown in FIG. 2, the boss portion (the boss portion 17 b in FIG. 2) opposite to the side on which the handle assembly 1 is mounted is closed by a waterproof cap 19. Female thread portions 17c and 17d to which the waterproof cap 19 is screwed are formed in the boss portions 17a and 17b so as to have a smaller diameter than the bearing housing portion. Large-diameter cylindrical seal holes 17e and 17f are formed outside the female screw portions 17c and 17d. The seal holes 17e and 17f can contact the tips of seal members 18a, which will be described later, mounted on the handle assembly 1.

  The waterproof cap 19 has a dish-shaped cover portion 19a and a cylindrical portion 19b that protrudes inward from the cover portion 19a. A male screw portion 19c that is screwed into either the female screw portion 17c or 17d is formed on the outer peripheral surface of the tip of the cylindrical portion 19b. An O-ring 18b that can contact the seal holes 17e and 17f is mounted on the base end side of the male screw portion 19c.

<Configuration of handle assembly 1>
As shown in FIG. 2, the handle assembly 1 is a member connected to the master gear shaft 10 so as to be integrally rotatable.

  The master gear shaft 10 is a cylindrical shaft, and first and second female screw portions 10a and 10b to which the handle assembly 1 is screwed are formed at both ends. The left first female screw portion 10a is, for example, a left screw, and the right second female screw portion 10b is, for example, a right screw.

  The handle assembly 1 can be attached to both the left end and the right end of the master gear shaft 10 in a non-rotatable and detachable manner. The handle assembly 1 includes a handle shaft 7 that is screwed into the female screw portions 10 a and 10 b, first and second handle arms 8 that are detachably and swingably connected to the handle shaft 7, and a distal end of the handle arm 8. And a handle handle 9 (see FIG. 1). The handle shaft 7 includes a first handle shaft (not shown) having a left-handed male screw portion that is screwed into the first female screw portion 10a, and a right-handed male screw portion 7b that is screwed into the second female screw portion 10b. 2, the second handle shaft 7 a is mounted in FIG. 2, and the first handle shaft is used when the handle assembly 1 is mounted on the left side of the reel body 2. Accordingly, when the handle assembly 1 is rotated in the yarn winding direction, the handle shaft 1 rotates in the direction in which the screw is tightened with respect to the master gear shaft 10, and the screw is not loosened during the winding operation. The connection structure of the handle assembly is not limited to a screw. For example, a non-circular hole such as a rectangle or a hexagon is formed on the master gear shaft, and the outer peripheral surface of the handle shaft is engaged with the non-circular hole. It may be formed.

<Configuration of rotation transmission mechanism 5>
As shown in FIG. 2, the rotation transmission mechanism 5 includes a master gear shaft 10 on which the handle assembly 1 can be mounted so as not to rotate, a master gear 11 that rotates together with the master gear shaft 10, and a cylindrical shape that meshes with the master gear 11. The pinion gear 12, the bearings 16 a and 16 b described above, and an engagement adjusting mechanism 20 that can adjust the engagement between the master gear 11 and the pinion gear 12 in a stepwise manner. Both ends of the master gear shaft 10 are rotatably supported by the reel body 2a via bearings 16a and 16b. The bearings 16a and 16b are rolling bearings having an outer ring 16c attached to the reel body 2a (or the lid 2d) and an inner ring 16d attached to the master gear shaft 11, specifically, ball bearings.

  The left end of the master gear shaft 10 is formed with a left-handed first female screw portion 10a that is screwed into the first handle, as described above, and the right-hand end is a second female screw that is screwed into the second handle shaft. Part 10b is formed. Further, a disc-shaped flange portion 10c for detachably mounting the master gear 11 concentrically is formed on the outer peripheral portion on the left end side of the master gear shaft 10. The outer side surface (left side surface in FIG. 3) of the flange portion 10c is in contact with the inner ring 16d of the bearing 16b.

  The master gear 11 is screwed and fixed to the flange portion 10c by a plurality of (for example, four) fixing bolts 26. The master gear 11 is formed on one surface in the axial direction of the disc-shaped gear main body 11a provided on the outer peripheral side of the master gear shaft 10 so as to be integrally rotatable, and the master gear shaft 10 on the outer peripheral portion of the gear main body 11a. And gear teeth 11b in the form of a face gear. The gear main body 11a is screwed to the flange portion 10c by a fixing bolt 26.

  As shown in FIGS. 1 and 2, the pinion gear 12 is mounted on the reel body 2 so as to be rotatable around the front and rear spool shafts 15, and the front portion 12 a penetrates the center portion of the rotor 3. And is fixed to the rotor 3 by a nut 13. The pinion gear 12 is rotatably supported on the reel body 2 via bearings 14a and 14b at the axial intermediate portion and the rear end portion, respectively. A spool shaft 15 passes through the inside of the pinion gear 12. The pinion gear 12 meshes with the oscillating mechanism 6 together with the master gear 11.

<Configuration of meshing adjustment mechanism 20>
As shown in FIG. 3, the meshing adjustment mechanism 20 is disposed between the bearing 16b and the lid 2d on the outer peripheral side of the master gear shaft 10 so as to be in contact with both. The meshing adjustment mechanism 20 can adjust the meshing between the master gear 11 and the pinion gear 12 stepwise (for example, three steps) by moving the master gear 11 stepwise to the right in FIG.

  As shown in FIGS. 3 and 4, the meshing adjustment mechanism 20 includes a first adjustment member 21 that can contact the inner wall portion 17g of the boss portion 17b of the lid body 2d, and the first adjustment member 21 and the bearing 16b. A second adjustment member 22 disposed so as to be able to contact the bearing 16a, and a cam mechanism 23 provided between the first adjustment member 21 and the second adjustment member 22 are provided. In FIG. 4, the dimension of the cam mechanism 23 in the master gear axial direction is drawn longer than the actual one in order to facilitate understanding of the structure.

  As shown in FIG. 4, the first adjustment member 21 is an annular member disposed on the outer peripheral side of the master gear shaft 10, and protrudes in the radial direction so as to be locked in the locking groove 17 h of the lid 2 d. A pair of ears 21a is provided on the outer peripheral surface. Thereby, the 1st adjustment member 21 is connected with the lid 2d so that rotation is impossible. The inner peripheral surface of the first adjusting member 21 has an inner diameter slightly larger than the female screw portion 17d formed on the inner peripheral surface of the boss portion 17b.

  The second adjustment member 22 is an annular member that is rotatably mounted on the master gear shaft 10. On the inner peripheral portion of the side surface of the second adjusting member 22 on the first adjusting member 21 side, a plurality of (for example, two) operating protrusions (for example, two operating protrusions) projecting so as to pass the inner peripheral side of the first operating member 21. An example) 22a is formed. The operation protrusion 22a is used to turn the second adjustment member 22 using a dedicated tool that can be attached to the outer peripheral side of the master gear shaft 10 from the outside of the reel with the waterproof cap 19 or the handle assembly 1 removed. Is done. An annular protrusion 22 b that protrudes in an annular shape toward the first adjustment member 21 is formed on the outer peripheral portion of the side surface on which the operation protrusion 22 a is formed. The annular protrusion 22b is formed in an annular shape so as to be approximately the same size as the first adjustment member 21, the outer peripheral portion, and the inner peripheral portion.

  Further, as shown in FIG. 3, an annular contact portion 22c protrudes from the surface of the second adjustment member 22 that contacts the bearing 16b so as to be able to contact the outer ring 16c of the bearing 16b. Thereby, the 2nd adjustment member 22 can contact only the outer ring | wheel 16c which the bearing 16b does not rotate, and is comprised so that it may not contact the rotating inner ring | wheel 16d.

  The cam mechanism 23 relatively moves the first adjustment member 21 and the second adjustment member 22 stepwise in a direction away from each other by the rotation of the second adjustment member 22. The cam mechanism 23 includes a cam portion 24 formed at the tip of the annular protrusion 22 b of the second adjustment member 22 and a cam receiving portion 25 formed on a surface of the first adjustment member 21 that faces the second adjustment member 22. And have. The cam portion 24 has a plurality of sets (for example, two sets) of a plurality of (for example, three) cam surfaces 24a, 24b, and 24c that are formed in a stepped manner at intervals in the circumferential direction. Each of the cam surfaces 24a to 24c is a flat surface orthogonal to the master gear shaft 10, and the cam surface 24a protrudes most toward the first adjustment member 21, and then the amount of protrusion gradually decreases, and the cam surface 24c Is the most concave. Further, the cam portion 24 has a plurality of (for example, two) inclined surfaces 24d and 24e formed so as to smoothly connect the adjacent cam surfaces 24a to 24c. By forming such inclined surfaces 24d and 24e, the second adjustment member 22 can be smoothly rotated, and the rotation operation is facilitated. The difference in the protruding amount of each of the cam surfaces 24a to 24c is, for example, about 0.2 to 0.8 mm, and in this embodiment, for example, 0.5 mm. Therefore, as shown in FIG. 5, the second adjustment member 22 is moved counterclockwise from the initial position (FIG. 5A) where the cam surface 24a and the cam receiving surface 25a are engaged. When the cam surface 24a is rotated to the second position (FIG. 5 (c)) where the cam surface 24a is engaged with the cam receiving surface 25c through the first position (FIG. 5 (b)) where the receiving surface 25b is engaged, the first adjusting member The distance L from the outer surface of 21 to the inner surface of the second adjusting member 22 changes in three steps at 0.5 mm intervals, and the meshing can be adjusted in three steps at 0.5 mm intervals.

  In this embodiment, the cam receiving portion 25 has the same shape as the cam portion 24, and is formed in a stepped manner on the surface of the first adjusting member 21 that faces the second adjusting member 22 with an interval in the circumferential direction. In addition, a plurality of (for example, three) cam receiving surfaces 25a, 25b, and 25c are provided. Each of the cam receiving surfaces 25a to 25c is a flat surface orthogonal to the master gear shaft 10, and the cam receiving surface 25a is most recessed with respect to the second adjustment member 22, and then the amount of protrusion increases sequentially. The receiving surface 25c protrudes most. The cam receiving portion 25 has a plurality of (for example, two) inclined surfaces 25d and 25e formed so as to smoothly connect adjacent cam receiving surfaces 25a to 25c. The protruding amount of the cam receiving portion 25 is the same as the protruding amount of the cam portion 24.

<Configuration of oscillating mechanism 6>
The oscillating mechanism 6 is a mechanism for moving the spool 4 in the same direction by moving the spool shaft 15 connected to the center of the spool 4 via the drag mechanism 60 in the front-rear direction. The oscillating mechanism 6 operates in conjunction with the rotation of the pinion gear 12 and moves the spool 4 back and forth in synchronization with the rotation of the rotor 3.

<Configuration of rotor 3>
As shown in FIG. 3, the rotor 3 includes a cylindrical portion 30 and first and second rotor arms 31 and 32 provided on the sides of the cylindrical portion 30 so as to face each other. The cylindrical portion 30 and the two rotor arms 31 and 32 are made of, for example, an aluminum alloy and are integrally formed. A bail arm 44 for guiding the fishing line to the spool 4 is attached to the tips of the rotor arms 31 and 32 so as to be freely opened and closed.

  A front wall 33 is formed at the front portion of the cylindrical portion 30, and a boss portion 33 a is formed at the center of the front wall 33. A through hole is formed in the center of the boss portion 33a so as to be non-rotatably locked to the pinion gear 12. The front portion 12a of the pinion gear 12 and the spool shaft 15 pass through the through hole.

  Inside the cylindrical portion 30 of the rotor 3, a reverse rotation preventing mechanism 50 for prohibiting / releasing the reverse rotation of the rotor 3 is disposed. The reverse rotation prevention mechanism 50 includes a roller-type one-way clutch 51 in which an inner ring rotates freely, and a switching mechanism 52 that switches the one-way clutch 51 between an operation state (reverse rotation prohibited state) and a non-operation state (reverse rotation permission state). Yes.

<Configuration of spool 4>
The spool 4 is disposed between the first rotor arm 31 and the second rotor arm 32 of the rotor 3, and is attached to the tip of the spool shaft 15 via a drag mechanism 60. The spool 4 has a bobbin trunk 4a around which the fishing line is wound, a skirt 4b formed integrally with the rear part of the bobbin trunk 4a, and a flange 4c fixed to the front end of the bobbin trunk 4a. ing. The bobbin trunk 4 a is a straight cylindrical member, and the outer peripheral surface is constituted by a peripheral surface parallel to the spool shaft 15. The bobbin trunk 4a is rotatably mounted on the spool shaft 15 by two bearings 56 and 57.

<Meshing adjustment operation>
Next, the meshing adjustment operation will be described with reference to FIG. FIG. 5 is a schematic view in which the cam portion 24 and the cam receiving portion 25 of the cam mechanism 23 are developed on a straight line.

  In the spinning reel having such a configuration, when adjusting the meshing amount at the time of manufacture, for example, one assembled reel is taken out for each lot. Then, the handle assembly 1 is turned to check the meshing. When there is a lot of rattling and the meshing is sweet (the gap is too large), the waterproof cap 19 is removed to expose the left end of the master gear shaft 10. In this state, a dedicated tool is mounted on the left end portion of the master gear shaft 10 and engaged with the operation protrusion 22a. Then, the tool is turned to rotate the second adjustment member 22 counterclockwise.

  When the second adjustment member 22 is rotated counterclockwise from the initial position, the engagement state of the cam mechanism 23 changes from the initial position shown in FIG. 5A to the second position shown in FIG. 5B. Specifically, at the initial position, the cam surface 24a is engaged with the cam receiving surface 25a, but at the intermediate position, the cam surface 24a is engaged with the cam receiving surface 25b via the inclined surface 25d. Thereby, the second adjustment member 22 moves in a direction away from the first adjustment member 21.

  At this time, when engaging the cam surface 25b from the inclined surface 25d, it is possible to notify the operator who performs the rotation operation that the turning power during the rotation has changed and changed to the next adjustment stage. Due to the change in the engagement state of the cam mechanism 23, the second adjustment member 22 that is separated from the first adjustment member 21 presses the outer ring 16c of the bearing 16b, and the inner ring 16d pushes the master gear 11 to the pinion gear via the flange portion 10c. 12 in the direction approaching. As a result, the gear teeth 11 b of the master gear 11 slightly approach the pinion gear 12. In this state, the handle assembly 1 is turned again to check the engagement. If this is acceptable, all reels in the same lot are set to the same meshing amount. If further adjustment is required, the tool is further rotated counterclockwise so that the cam surface 24a is engaged with the cam receiving surface 25c. As a result, the gear teeth 11 b of the master gear 11 further approach the pinion gear 12.

[Other Embodiments]
(A) In the above embodiment, the cam receiving portion has the same shape as the cam portion, but may have a different shape. Further, although the cam portion 24 is provided on the second adjustment member 22 and the cam receiving portion 25 is provided on the first adjustment member 21, the reverse may be possible.

  In FIG. 6, the cam portion 124 of the cam mechanism 123 is provided on the first adjustment member 121, and the cam receiving portion 125 is provided on the second adjustment member 122. The cam surfaces 124a to 124c and the inclined surfaces 124d and 124e of the cam portion 124 are substantially the same as those in the above embodiment, except that a restriction projection 124f that restricts rotation is formed following the cam surface 124c.

  The cam receiving portion 125 has two cam receiving projections 125 a formed on the second adjusting member 122 so as to protrude toward the first adjusting member 121. Each cam receiving projection 125a is selectively engaged with any one of the cam surfaces 124a to 124c.

  In FIG. 7, the cam portion 224 of the cam mechanism 223 is provided on the first adjustment member 221, and the cam receiving portion 225 is provided on the second adjustment member 222. Unlike the embodiment, the cam portion 224 has only two sets of cam surfaces 224a to 224c and does not have an inclined surface.

  The cam receiving portion 225 has two cam receiving protrusions 225 a that are formed on the second adjusting member 222 so as to protrude toward the first adjusting member 221. The cam receiving protrusion 225a includes two sets of cam surfaces 224a to 224c, and a flat cam receiving surface 225a that engages with the two cam surfaces 224a to 224c, and an inclined surface 225d that is formed obliquely from the cam receiving surface 225a. The inclined surface 225d is formed to be able to ride on adjacent cam surfaces 224a to 224c. Each cam receiving protrusion 225a selectively engages with any one of the cam surfaces 224a to 224c.

  Even with the cam mechanisms 123 and 223 configured as described above, it is possible to obtain the same operational effects as those of the above-described embodiment. Further, since the cam receiving portions 125 and 225 have a simple shape, it is easy to manufacture.

  (B) In the above embodiment, the first adjustment member 21 is non-rotatably connected to the lid 2d. However, the first adjustment member may be integrally formed on the inner wall portion 17g of the lid 2d. In this case, a cam portion may be formed on the lid 2d, or a cam receiving portion may be formed. When forming the cam receiving portion, a simple shape is preferable as in the embodiment shown in FIG.

  (C) In the above embodiment, the first adjustment member 21 is disposed on the lid 2d side, and the second adjustment member 22 is disposed on the bearing 16b side. In FIG. 8, the first adjustment member 321 of the engagement adjustment mechanism 320 is disposed in contact with the outer ring 16c of the bearing 16b. The first adjustment member 321 has a pair of ear portions 21a that engage with the locking grooves 17h, and is non-rotatably connected to the inner peripheral surface of the boss portion 17b. The second adjustment member 322 is disposed in contact with the inner wall portion 17g of the boss portion 17b, and has an operation protrusion 322a on which an exclusive tool can be locked on the outer side surface (the left side surface in FIG. 8) of the inner peripheral portion. ing. The cam mechanism 323 is provided between the first adjustment member 321 and the second adjustment member 322. Such a configuration also has the same operational effects as the above-described embodiment.

  (D) In the above embodiment, the operation unit is configured by a pair of operation protrusions, but the number of operation protrusions is not limited to one pair. Further, the shape of the operation unit is not limited to the protrusion, and any shape may be used as long as the tool can be locked. For example, the uneven | corrugated | grooved part arrange | positioned at intervals in the circumferential direction may be sufficient.

  (E) In the above-described embodiment, the front drag type spinning reel has been described as an example. Applicable.

  (F) In the above-described embodiment, the inner ring 16d of the bearing 16b is brought into direct contact with the master gear 11 via the flange portion 10c. Good. In this case, rough adjustment is performed with the adjustment washer, and fine adjustment can be performed with the mesh adjustment mechanism 20.

  (G) In the above-described embodiment, the master gear 11 is configured separately from the master gear shaft 10, but may be configured integrally. When the master gear is integrally formed with the master gear shaft, the inner ring 16d of the bearing 16b may be brought into direct contact with the back surface of the master gear.

  (H) In the above-described embodiment, two sets of cam portions and cam receiving portions are provided at intervals in the circumferential direction. However, the number of cam portions and cam receiving portions may be any number as long as it is two or more. In general, up to three sets are preferable from the viewpoint of the manufacturing process.

  (I) In the above-described embodiment, the meshing adjustment can be performed in three stages. However, the adjustment stage is not limited to three stages, and any number of stages may be used. Moreover, although the interval of each stage was made into equal intervals of 0.5 mm, you may make it into unequal intervals, such as 0.5, 0.3, 0.1 mm, for example.

1 is a cross-sectional side view of a spinning reel that employs an embodiment of the present invention. FIG. The fragmentary sectional view around the boss part of the lid. The disassembled perspective view of the meshing adjustment mechanism by one Embodiment of this invention. The schematic diagram which shows operation | movement of the cam mechanism. The schematic diagram of the cam mechanism of other embodiment. Furthermore, the schematic diagram of the cam mechanism of other embodiment. The figure equivalent to Drawing 3 of other embodiments.

Explanation of symbols

1 Handle assembly (an example of a handle)
2 Reel body 3 Rotor 5 Rotation transmission mechanism 10 Master gear shaft 11 Master gear 11a Gear body 11b Gear teeth 12 Pinion gears 16a, 16b Bearing (an example of a second bearing and a first bearing)
16c Outer ring 16d Inner ring 20,320 Engagement adjustment mechanism 21, 121, 221, 321 First adjustment member 22, 122, 222, 322 Second adjustment member 23, 123, 223, 323 Cam mechanism 24, 124, 224 Cam part 25, 125,225 Cam receiving portions 24a-24c, 124a-124c, 224a-224c Cam surfaces 24d, 24e, 124d, 124e Inclined surfaces
miserareru

Claims (8)

A spinning reel rotation transmission mechanism for transmitting rotation from a handle to a rotor rotatably mounted on a spinning reel reel body,
A master gear shaft rotatably mounted inside the reel body so as to rotate integrally with the handle;
A disc-shaped gear main body provided on the outer peripheral side of the master gear shaft so as to be integrally rotatable, and gear teeth formed on one surface of the outer peripheral portion of the gear main body in the axial direction of the master gear shaft; Master gear,
A first bearing that is disposed between the other axial surface of the gear body and the reel body and supports the master gear shaft;
A pinion gear that is disposed in a direction different from the master gear shaft, meshes with the gear teeth of the master gear, and the rotor is connected to be integrally rotatable,
An engagement adjusting mechanism that is arranged in contact with both the first bearing and the reel body on the outer peripheral side of the master gear shaft and adjusts the engagement between the master gear and the pinion gear;
The meshing adjustment mechanism is
An annular first adjusting member that is non-rotatably connected to the reel body;
An annular second adjustment member rotatably mounted on the master gear shaft and rotatable from the outside of the reel body;
A cam that is provided between the first adjustment member and the second adjustment member and relatively moves stepwise in a direction in which the first adjustment member and the second adjustment member are separated by rotation of the second adjustment member. And a rotation transmission mechanism of the spinning reel. The cam mechanism is
A cam portion having a plurality of flat cam surfaces formed in a stepped manner at intervals in the circumferential direction on either one of the first adjustment member and the second adjustment member;
2. The spinning reel rotation transmission mechanism according to claim 1, further comprising: a cam receiving portion formed on one of the first adjustment member and the second adjustment member so as to engage with the plurality of cam surfaces. .   The spinning cam rotation transmission mechanism according to claim 2, wherein the cam portion further includes an inclined surface formed so as to smoothly connect the adjacent cam surfaces between the plurality of cam surfaces.   4. The spinning reel rotation transmission mechanism according to claim 2, wherein a plurality of sets of the plurality of cam surfaces are formed at intervals in the circumferential direction.   5. The rotation transmission mechanism for a spinning reel according to claim 2, wherein the cam receiving portion has a protrusion portion that selectively contacts the plurality of cam surfaces. 6. The first bearing is a rolling bearing having an outer ring attached to the reel body and an inner ring attached to the master gear shaft,
6. The spinning reel rotation transmission mechanism according to claim 1, wherein the second adjustment member is disposed so as to be in contact with the outer ring. 7.   The spinning reel according to any one of claims 1 to 6, further comprising a second bearing disposed between one surface of the gear teeth of the master gear and the reel body, and supporting the master gear shaft. Rotation transmission mechanism. The first adjustment member is integrally formed with the reel body,
The spinning reel rotation transmission mechanism according to any one of claims 2 to 7, wherein the cam portion or the cam receiving portion provided in the first adjustment member is integrally formed with the reel body.

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