JP2010166837A - Pinion gear for spinning reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a rotation feeling without causing an increase in a processing cost. <P>SOLUTION: The pinion gear 12 for spinning reels is a gear through which a spool shaft 15 of the spinning reel for playing out a fishing line forward is passed, which is rotatably mounted on a reel body 2 and transmits rotation of a handle 1 from a master gear 11 having a face gear portion. The gear has a body portion 34, a gear portion 35 and an urge member 36. The body portion 34 has the spool shaft 15 passing therethrough and is rotatably mounted on the reel body 2. The gear portion 35 is composed of a helical gear that is mounted on the body portion 34 integrally, rotatably and movably in the direction of the spool shaft and meshed with the face gear portion. The urge member 36 urges the gear portion 35 at least in one direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pinion gear, in particular, a spinning reel through which a spool shaft of a spinning reel capable of feeding a fishing line forward passes, is rotatably mounted on a reel body, and rotation of a handle is transmitted from a master gear having a face gear portion. Reel pinion gear.

  Generally, a spinning reel has a reel body having a handle, a rotor rotatably supported on the reel body, and a spool that is provided in front of the rotor and on which an fishing line is wound around an outer periphery. The rotation of the handle is transmitted to the rotor by a rotation transmission mechanism. The rotation transmission mechanism includes a master gear that rotates integrally with the handle, and a pinion gear that rotates about an axis that is different from the master gear. The pinion gear is a cylindrical member, and the spool shaft passes through the center. The pinion gear meshes with the master gear and rotates in conjunction with the rotation of the handle. The pinion gear rotates around the spool shaft, and a rotor is connected to the tip of the pinion gear so as to be integrally rotatable.

  In the case of a spinning reel, the master gear has a face gear portion, and a pinion gear meshes with the face gear portion. The face gear portion is formed by a special oblique curve that is curved on the outer peripheral side surface of the disk-shaped master gear, and a pinion gear of a helical tooth meshes with the face gear portion.

JP 2000-125713 A

  If there is no processing error and assembly error, the face gear part and the tooth teeth rotate at a constant angular velocity. However, actually, the pinion gear angular velocity becomes discontinuous due to processing errors and assembly errors of the pinion gear, and the rotational feeling of the handle is deteriorated. By improving the machining accuracy, the deterioration of the rotational feeling is reduced. However, when high-precision processing is performed, processing costs increase.

  An object of the present invention is to improve the rotational feeling without incurring an increase in processing cost.

  The spinning reel pinion gear according to the first aspect of the present invention has a spinning reel spool shaft through which fishing line can be fed forward, is rotatably mounted on the reel body, and the rotation of the handle is transmitted from a master gear having a face gear portion. The gear includes a main body portion, a gear portion, and an urging member. The main body portion has a spool shaft passing therethrough and is rotatably mounted on the reel main body. The gear portion is a helical tooth that is attached to the main body portion so as to be integrally rotatable and movable in the spool axial direction, and meshes with the face gear portion. The urging member urges the gear portion toward at least one direction in the spool shaft direction.

  The cross-sectional shape of the surface passing through the rotation shaft of the pinion gear of the helical gear portion of the pinion gear is always the same. As the pinion gear rotates, the tooth tip moves in the axial direction. That is, rotating the pinion gear and translating the pinion gear in the axial direction are exactly the same in meshing with the face gear portion. Therefore, by allowing the gear part to move in one direction relative to the main body, for example, in the direction in which force is received by the face gear (for example, behind the reel), machining errors and assembly errors are absorbed to achieve constant speed motion. become able to.

  Here, the gear portion of the pinion gear can be moved in the spool axis direction and is biased by the biasing member in at least one direction. For this reason, for example, even if the wall thickness changes due to the processing error of the face gear part, the gear part of the pinion gear moves back and forth in the axial direction accordingly and absorbs the wall thickness change due to the processing error to make a constant speed. It becomes easy to exercise. For this reason, it becomes possible to improve the rotational feeling without increasing the processing cost.

  A pinion gear for a spinning reel according to a second aspect of the present invention is the pinion gear according to the first aspect, wherein the main body portion is supported by the reel main body only at the front of the gear portion, and the biasing member is the gear portion from the rear of the gear portion. Is urged toward the bearing.

  In this case, since the main body portion is supported by the bearing in front of the gear portion, it becomes easy to dispose the urging member behind the gear portion. Usually, the pinion gear meshes with the face gear portion on the front side of the face gear portion. Therefore, when the face gear portion rotates, the pinion gear receives a force directed backward. Therefore, by engaging the gear portion with the face gear portion in a state where the gear portion can be moved back and forth in the spool axis direction, the gear portion is smoothly moved back and forth according to the processing error of the face gear portion to absorb the processing error. be able to.

  A pinion gear of a spinning reel according to a third aspect of the present invention is the pinion gear according to the first or second aspect, wherein the urging member is a coil spring that is disposed on the outer periphery of the main body and urges the gear at one end. The rear portion further includes a locking member that locks the other end of the coil spring in a state where movement in the other axial direction is restricted.

  In this case, since the urging member is a coil spring, the spring force can be easily adjusted. Further, since the locking member is provided separately, the coil spring can be easily locked.

  According to the present invention, the gear portion of the pinion gear can be moved in the spool axis direction and is urged by the urging member in at least one direction. For this reason, for example, even if the wall thickness changes due to the influence of the processing accuracy of the face gear portion, the pinion gear can move in the axial direction accordingly to absorb the wall thickness change due to the processing accuracy. For this reason, it becomes possible to improve the rotational feeling without increasing the processing cost.

Side view of a spinning reel employing an embodiment of the present invention FIG. III-III sectional drawing of FIG. The cross-sectional enlarged view of the pinion gear mounting part. The disassembled perspective view of a pinion gear.

  As shown in FIG. 1, a spinning reel adopting an embodiment of the present invention includes a handle 1, a reel body 2 that rotatably supports the handle 1, a rotor 3, and a spool 4. The rotor 3 is rotatably supported at the front portion of the reel body 2. The spool 4 winds the fishing line around the outer peripheral surface, and is disposed at the front portion of the rotor 3 so as to be movable back and forth. The handle 1 can be mounted on either the left or right side of the reel body 2.

  As shown in FIGS. 1 and 2, the handle 1 includes a handle shaft 1a (FIG. 2), a handle arm 1b extending in the radial direction from the handle shaft 1a, and a handle handle provided rotatably at the tip of the handle arm 1b. 1c. The handle 1 can be mounted from either the right side of the reel body 2 shown in FIGS. 1 and 2 or the left side of the reel body 2 shown in FIG.

<Structure of reel body>
As shown in FIG. 2, the reel body 2 includes a reel body 2 a having a storage space with an open side, and a lid member 2 b that is detachably attached to the reel body 2 a to close the storage space of the reel body 2 a. (FIG. 1). The reel body 2 includes a reel body 2a and a body guard 26 that covers the rear part of the lid member 2b.

  The reel body 2a is made of, for example, a light alloy such as a magnesium alloy or an aluminum alloy, and is integrally formed with a T-shaped rod mounting leg 2c that extends forward and backward at the top. As shown in FIG. 2, a rotation transmission mechanism 5 and an oscillating mechanism 6 are provided in the storage space of the reel body 2a.

  As shown in FIG. 3, a cylindrical boss portion 17a is formed on the right side surface of the reel body 2a. The boss portion 17a is formed so as to protrude inward and outward of the reel body 2a in order to accommodate a bearing 16a that supports the right end of FIG. A boss portion 17b is formed at a position facing the boss portion 17a of the lid member 2b. The boss portion 17b is formed to project inward and outward of the reel body 2a in order to accommodate the bearing 16b that supports the left end of the master gear shaft 10. The boss portion (the boss portion 17a in FIG. 3) opposite to the side on which the handle 1 is mounted is closed by a waterproof cap 19. The waterproof cap 19 is a bottomed cylindrical cap, and is fixed to the inner peripheral surface of either of the boss portions 17a and 17b by screwing.

<Configuration of rotation transmission mechanism>
As shown in FIGS. 2 and 3, the rotation transmission mechanism 5 transmits the rotation of the handle 1 to the rotor 3, and rotates the rotor 3 in conjunction with the rotation of the handle 1. The rotation transmission mechanism 5 has a master gear shaft 10 to which the handle shaft 1a of the handle 1 is connected so as to be integrally rotatable, a master gear 11 that rotates together with the master gear shaft 10, and a pinion gear 12 that meshes with the master gear 11. is doing.

  The master gear 11 has a face gear portion 11a, and is formed integrally with or separate from the master gear shaft 10 (in this embodiment). The master gear shaft 10 is a hollow member made of, for example, stainless steel in which a non-circular (for example, rectangular) locking hole 10a is formed at the center. Both ends of the master gear shaft 10 are rotatably supported by the reel body 2a and the lid member 2b via bearings 16a and 16b. The master gear shaft 10 rotates integrally with the handle shaft 1a locked in the locking hole 10a. The master gear shaft 10 is fixed to the handle shaft 1 a by a fixing bolt 18 on the side opposite to the mounting side of the handle 1.

<Configuration of pinion gear>
As shown in FIG. 2, the pinion gear 12 is a cylindrical member that is disposed along the front-rear direction and is rotatably mounted on the reel body 2a. The front portion 12 a of the pinion gear 12 passes through the center portion of the rotor 3, and is fixed to the rotor 3 by a nut 33 at this through portion. The pinion gear 12 is rotatably supported by the reel body 2a via two ball bearings 14a and 14b disposed adjacent to the intermediate portion in the axial direction. A spool shaft 15 passes through the center of the pinion gear 12 in the front-rear direction. The pinion gear 12 meshes with the master gear 11 and also meshes with the oscillating mechanism 6.

  As shown in FIGS. 4 and 5, the pinion gear 12 has a cylindrical main body portion 34, a gear portion 35 that is mounted on the outer periphery of the rear portion of the main body portion 34 and meshes with the face gear portion 11a, and a gear portion 35 attached to the front. And a biasing member 36 for biasing.

  The main body 34 is a cylindrical member made of, for example, a stainless alloy, and is rotatably supported on the reel body 2a by ball bearings 14a and 14b. The main body portion 34 has a large-diameter rotor mounting portion 34a and a small-diameter gear mounting portion 34b disposed on the rear side thereof. A spool shaft through hole 34 c through which the spool shaft 15 passes with a gap is formed in the inner peripheral portion of the main body portion 34. The rotor 3 and ball bearings 14a and 14b are mounted on the outer peripheral surface of the rotor mounting portion 34a. A male screw portion 34d into which the nut 33 is screwed is formed on the outer peripheral surface of the front end of the rotor mounting portion 34a. Further, a detent portion 34e having a parallel cut-out plane for connecting the rotor 3 so as to be integrally rotatable is formed. An annular protrusion 34h for restricting the forward movement of the main body 34 is formed on the outer peripheral surface of the rear end of the rotor mounting portion 34a. When the annular projection 34h is locked to the inner ring of the ball bearing 14b, the forward movement of the main body 34 is restricted.

  The gear mounting portion 34b mounts the gear portion 35 so as to be axially movable and integrally rotatable. The gear mounting portion 34b is formed with a smaller diameter than the rotor mounting portion 34a in order to restrict movement of the gear portion 35 toward the rotor mounting portion 34a. Thereby, the diameter of the gear part 35 can also be reduced. A ring-shaped locking member 37 that locks one end of the biasing member 36 is mounted on the outer peripheral surface of the rear end side of the gear mounting portion 34b. The rearward movement of the locking member 37 is restricted by, for example, a C-shaped retaining ring 38. The retaining ring 38 is mounted in an annular mounting groove 34f formed on the outer peripheral surface of the rear end of the gear mounting portion 34b. An anti-rotation portion 34g having a parallel cut-out plane is formed on the outer peripheral surface of the gear mounting portion 34b. The rotation preventing part 34g is provided to connect the gear part 35 so as to be integrally rotatable.

  The gear portion 35 is a cylindrical member made of a metal such as a zinc alloy or a stainless alloy, for example, having a tooth 35a that meshes with the face gear portion 11a on the outer peripheral surface. On the inner peripheral surface of the gear portion 35, an oval locking hole 35b that engages with the rotation preventing portion 34g so as to be integrally rotatable is formed. The gear part 35 is attached to the gear attachment part 34b while being restricted from moving forward. Specifically, forward movement is restricted by the step between the rotor mounting portion 34a and the gear mounting portion 34b of the main body 34. As shown in FIG. 4, the gear portion 35 is disposed with a gap with respect to the step with the rotor mounting portion 34 a when engaged.

  In the pinion gear 12 having such a configuration, the gear portion 35 of the pinion gear 12 can be moved back and forth in the spool axial direction and is urged by the urging member 36 in one direction (forward). For this reason, for example, even if the wall thickness changes due to the influence of the processing accuracy of the face gear portion 11a, the gear portion 35 can move in the axial direction accordingly to absorb the wall thickness change due to the processing accuracy. For this reason, it becomes possible to improve the rotational feeling without increasing the processing cost.

  The biasing member 36 is, for example, a coil spring, and is mounted in a compressed state on the outer peripheral surface of the gear mounting portion 34 b between the gear portion 35, the rear end, and the locking member 37.

The ball bearings 14 a and 14 b are arranged side by side in the front part and the rear part of the one-way clutch 51 of the reverse rotation prevention mechanism 50 and in the vicinity of the front part of the gear part 35. The outer ring of the ball bearing 14a is mounted on the front part of the reel body 2a, and the inner ring is mounted on the rear outer peripheral surface of the rotor mounting part 34a. The total axial length of the ball bearings 14a and 14b is 80% to 150% of the diameter of the rotor mounting portion 34a, preferably 100% to 120%. Is formed. Specifically, the combined axial length of the ball bearings 14a and 14b is 115% of the diameter of the rotor mounting portion 34a. Here, since the combined axial length of the ball bearings 14a and 14b is formed to be relatively wide, the pinion gear 12 can be supported in a stable state. The forward movement of the front portion of the outer ring of the ball bearing 14a is restricted by a restriction plate 2d fixed to the reel body 2a.

<Configuration of oscillating mechanism>
2 and 3, the oscillating mechanism 6 moves 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. Mechanism. The oscillating mechanism 6 is fixed to the screw shaft 21 arranged in parallel below the spool shaft 15, the slider 22 guided to the reel body 2 a in the front-rear direction along the screw shaft 21, and the tip of the screw shaft 21. Intermediate gear 23. The rear end of the spool shaft 15 is fixed to the slider 22 so as not to rotate. The intermediate gear 23 meshes with the pinion gear 12.

<Configuration of rotor>
The rotor 3 is made of a light alloy such as a magnesium alloy or an aluminum alloy, is non-rotatably connected to the pinion gear 12, and is rotatable with respect to the reel body 2. The rotor 3 is connected to a cylindrical portion 30 formed in the rear portion so that the cylindrical front portion of the reel body 2 can be disposed therein, and to a position opposed to the rear portion of the cylindrical portion 30. And first and second rotor arms 31 and 32 extending in the direction.

  The cylindrical portion 30 has a disk-like wall portion 30a on the inner peripheral side of the front portion, and an annular boss portion 30b that is connected to the pinion gear 12 so as to be integrally rotatable is formed at the center portion of the wall portion 30a. . The front portion of the pinion gear 12 passes through the inner peripheral portion of the boss portion 30b, and the rotation preventing portion 34e at the front portion of the pinion gear 12 is locked to the inner peripheral surface of the boss portion 30b so as to be integrally rotatable. In this state, the rotor 3 is fixed to the pinion gear 12 by screwing the nut 33 into the male thread portion 34d of the pinion gear 12.

  A first bail support member 40 is swingably mounted on the outer peripheral side of the tip of the first rotor arm 31. A line roller 41 for guiding the fishing line to the spool 4 is attached to the tip of the first bail support member 40. A second bail support member 42 is swingably mounted on the inner peripheral side of the distal end of the second rotor arm 32.

  Between the line roller 41 and the second bail support member 42, a bail 43 having a shape obtained by curving a wire in a substantially U shape is fixed. The first bail support member 40, the second bail support member 42, the line roller 41 and the bail 43 constitute a bail arm 44 that guides the fishing line to the spool 4. The bail arm 44 is swingable between a yarn guiding posture shown in FIG. 2 and a yarn releasing posture reversed therefrom.

  As shown in FIG. 4, a reverse rotation prevention mechanism 50 for prohibiting / releasing the reverse rotation of the rotor 3 is disposed inside the cylindrical portion 30 of the rotor 3. The reverse rotation prevention mechanism 50 includes a roller-type one-way clutch 51 in which an inner ring rotates freely, and a switching lever 52 that switches the one-way clutch 51 between an operation state (reverse rotation prohibited state) and a non-operation state (reverse rotation permitted state). Yes. The switching lever 52 is swingably attached to the reel body 2a.

<Spool configuration>
As shown in FIG. 2, 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 (FIG. 2). It is installed. The spool 4 is provided at a front end of the bobbin trunk 4a, a bobbin skirt 4b integrally formed with the bobbin trunk 4a behind the bobbin trunk 4a, and a bobbin trunk 4a around which the fishing line is wound. And a large-diameter flange portion 4c.

  The drag mechanism 60 brakes the rotation of the spool 4. The drag mechanism 60 includes a drag adjustment knob 61 that is screwed to the tip of the spool shaft 15 and a brake portion 62 that is pressed by the drag adjustment knob 61 to brake the spool 4. is doing.

<Operation of spinning reel>
In the spinning reel configured as described above, when the angler rotates the handle 1 in the yarn winding direction while the bail arm 4 is in the yarn guiding posture, the master gear 11 is rotated by the rotation and the pinion meshes with the master gear 11. The gear 12 rotates. Thereby, the rotor 3 rotates in the line winding direction, and the fed fishing line is wound around the spool 4.

  At this time, even if the thickness of the tooth surface of the face gear portion 11a fluctuates due to a machining error of the face gear portion 11a, the gear portion 35 of the pinion gear 12 moves back and forth in the axial direction in accordance with the fluctuation, and the machining error Absorbs fluctuations in wall thickness. For this reason, it becomes possible to improve the rotational feeling without increasing the processing cost.

<Features>
(A) The pinion gear 12 is divided into a main body portion 34 and a gear portion 35, and the gear portion 35 is disposed so as to be axially movable with respect to the main body portion 34. Further, the gear portion 35 is urged forward by the urging member 36. As a result, even if the thickness of the tooth surface of the face gear portion 11a varies due to the machining error of the face gear portion 11a, the gear portion 35 of the pinion gear 12 moves back and forth in the axial direction in accordance with the variation, resulting in a machining error. Absorbs fluctuations in wall thickness. For this reason, it becomes possible to improve the rotational feeling without increasing the processing cost.

  (B) The main body portion 34 is supported by the ball bearings 14a and 14b on the reel body 2a only in front of the gear portion 35, and the urging member 36 directs the gear portion 35 toward the ball bearing 14b from the rear of the gear portion 35. Energize.

For this reason, since the main body portion 34 is supported by the bearings 14 a and 14 b only in front of the gear portion 35, the urging member 36 can be easily disposed behind the gear portion 35. Further, normally, the pinion gear meshes with the face gear portion on the front side of the face gear portion. Therefore, when the face gear portion rotates, the pinion gear receives a force directed backward. Therefore, by engaging the gear portion with the face gear portion in a state where the gear portion can be moved back and forth in the spool axis direction, the gear portion is smoothly moved back and forth according to the processing error of the face gear portion to absorb the processing error. be able to.

(C) The urging member 36 is a coil spring that is disposed on the outer periphery of the main body portion 34 and urges the gear portion 35 at one end, and is restricted from moving in the other axial direction at the rear portion of the main body portion 34. A locking member 37 for locking the other end of the coil spring is provided.

  For this reason, since the urging member 36 is a coil spring, it becomes easy to adjust the spring force. Further, since the locking member 37 is not provided integrally with the main body portion 34 but is provided separately, the coil spring can be easily locked.

<Other embodiments>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.

  (A) In the above embodiment, the urging member 36 is constituted by a coil spring. However, the urging member 36 is not limited to a coil spring, and any form can be used as long as the gear part 35 can be urged forward. But it ’s okay. For example, the biasing member of other forms, such as a corrugated spring and a disc spring, may be sufficient. Further, an elastic body such as synthetic rubber may be used.

  (B) In the above-described embodiment, the gear portion 35 is prevented from rotating by the rotation preventing portion 34g having a parallel cut-out surface, but the rotation preventing portion connects the gear portion so as to be axially movable and integrally rotatable. Anything is acceptable. For example, the anti-rotation portion may be configured by a key or serration.

  (C) In the above embodiment, the present invention has been described by taking a front drag type spinning reel as an example. However, the pinion gear of the present invention uses a pinion gear such as a rear drag type spinning reel or a lever brake type spinning reel. Applicable to all spinning reels.

  (D) In the above-described embodiment, the pinion gear is arranged around the steering shaft and the shaft, but in the case of a cantilever master gear, the pinion gear in which the spool shaft is arranged around the axis that intersects with the steering shaft. It may be.

  (E) In the above-described embodiment, the gear portion 35 is urged forward by the urging member 36, but the gear portion may be urged in both the front and rear directions by two urging members. In this case, it is preferable that the two urging members are both in a compressed state or a tensile state.

DESCRIPTION OF SYMBOLS 1 Handle 2 Reel main body 11 Master gear 11a Face gear part 12 Pinion gear 14a, 14b Ball bearing 15 Spool shaft 34 Main part 35 Gear part 36 Energizing member 37 Locking member

Claims (3)

A spinning reel pinion gear through which a spool shaft of a spinning reel through which fishing line can be fed forward penetrates, is rotatably mounted on the reel body, and rotation of a handle is transmitted from a master gear having a face gear portion,
A main body portion through which the spool shaft passes and is rotatably mounted on the reel main body;
A helical gear portion which is mounted to the main body portion so as to be integrally rotatable and movable in the spool axis direction, and meshes with the face gear portion;
A biasing member that biases the gear portion toward at least one direction of the spool shaft direction;
Spinning reel pinion gear with The main body is supported by a bearing on the reel main body only in front of the gear portion,
The spinning pinion gear according to claim 1, wherein the urging member urges the gear portion toward the bearing from the rear of the gear portion. The biasing member is a coil spring disposed on the outer periphery of the main body portion and biasing the gear portion at one end,
The pinion of a spinning reel according to claim 1 or 2, further comprising a locking member that locks the other end of the coil spring in a state where movement in the other direction in the axial direction is restricted at a rear portion of the main body. gear.

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