JP2005237307A - Reel for fishing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reel for fishing, capable of effectively reducing backlash, vibration or the like regardless of the rotation direction, and having a power-transmission structure having a gear-transmission structure of a simple construction, and incorporated therewith. <P>SOLUTION: The reel for the fishing has two or more transmission gears 21, 23 for transmitting rotation operation of a handle installed in a reel body 1 to an output body. At least one of the two or more transmission gears is constituted by parallelly installing a main gear 23a and a support gear 23b having the number of teeth different from that of the main gear, and an O-ring 23d enabling both gears to be relatively rotated while adding resistance in the rotation direction is installed between both the gears. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fishing reel that winds a fishing line around a spool by rotating a handle provided on the reel body.

  2. Description of the Related Art Conventionally, a fishing reel is configured to wind a fishing line around a spool by rotating a handle that is rotatably supported on the reel body, and the rotational force of the handle is disposed in the reel body. It is transmitted to a spool or the like via a power transmission mechanism. Usually, the power transmission mechanism is configured to include a plurality of gears, and the rotational force of the handle is generated by meshing the gears rotatably supported in the reel main body with a predetermined output body (spinning reel rotor and both To the spool of a bearing reel).

  By the way, in the power transmission mechanism using gears, problems such as generation of vibration (with backlash) and defective rotation (heavy rotation) occur unless the gear meshing adjustment (backlash adjustment) is performed reliably. In particular, in a configuration in which power transmission is performed by combining a plurality of gears (a configuration having a gear train), the backlash amount between the gears accumulates, and finally there is a backlash between the input body (handle) and the output body. It gets bigger. In addition, when used over a long period of time, the amount of backlash increases due to wear of the gears, resulting in problems such as rotation failure due to wear dust and the like.

Therefore, in order to suppress such a backlash phenomenon, Patent Document 1 discloses that two gears (a main gear and a support gear) are superposed and the support gear is spring-biased to the main gear in the circumferential direction. A power transmission mechanism is disclosed in which one transmission gear is configured and meshed with one transmitted gear.
JP 2001-333671

  The power transmission mechanism disclosed in the above publication can superimpose two gears, although it has excellent effects of eliminating backlash and preventing rattling and abnormal noise when the oscillating mechanism is reversed. And since it is the structure which interposes a spring between both, the following problems will arise.

  When superposing two gears, a recess and a holding part are formed in both gears, and a spring is interposed in that part, so the number of parts is large, the structure becomes complicated, and the cost is increased. . Moreover, since the structure of the gear is complicated, it must be molded, and as a result, the gear accuracy tends to be lowered. Further, since the gears are combined against the spring force when the two gears are assembled, the assembly is troublesome, and the spring member may jump out of the holding portion and be lost during the assembly.

  When a force is applied to the main gear side, the mesh gear is transmitted without displacement, so there is no problem.However, if a force is applied to the support gear side that is spring-biased in the rotation direction during reverse rotation, rattling is likely to occur and wear is likely to occur. Become. Moreover, it is difficult to apply the above-described superposition structure to a gear that transmits power between twisted shafts such as a helical gear.

  The present invention has been made on the basis of the above-described problems, and incorporates a power transmission mechanism that can effectively suppress backlash, vibration, etc. regardless of the rotation direction and has a simple gear transmission structure. It aims to provide a fishing reel.

  In order to achieve the above object, the present invention provides a fishing reel provided with a power transmission mechanism having a plurality of transmission gears so as to transmit a rotation operation of a handle provided in a reel body to an output body. , At least one of the plurality of transmission gears is configured by arranging a main gear and a support gear having a different number of teeth from the main gear, and both gears provide resistance in the rotational direction between the two gears. However, the present invention is characterized in that a resistance imparting connecting means capable of relative rotation is provided.

  According to the configuration described above, gears having different numbers of teeth (main gear and support gear; hereinafter, a gear configured in this way is also referred to as a “resistance-applying connection gear”) can be relatively rotated in a state where resistance is applied. Accordingly, a rotational speed difference is generated between these gears during power transmission.

  Due to the difference in rotational speed, a frictional resistance force in the circumferential direction is generated by the resistance applying connecting means provided between the two, so that a backlash at the time of meshing with the other gear meshing with the resistance imparting connecting gear is not achieved. Adhesion is effectively absorbed. In addition, even if the meshing transmission gear rotates forward and backward, the above-mentioned support gear is connected with resistance regardless of directionality, so that unpleasant vibration and abnormal noise can be reliably prevented. Is possible.

  According to the present invention, it is possible to obtain a fishing reel incorporating a power transmission mechanism including a transmission gear that effectively suppresses the occurrence of vibration, backlash, and backlash regardless of the rotation direction. In addition, since such a transmission gear has a simple structure, the cost can be reduced and a fishing reel with good assembling workability can be obtained.

1 to 5 are diagrams showing an embodiment of a fishing reel according to the present invention. FIG. 1 is a side view showing an internal configuration of a fishing reel (spinning reel), and FIG. FIG. 3 is an enlarged view of an oscillating mechanism portion, FIG. 4 is a diagram showing a meshed state of an oscillating drive gear and a driven gear, and FIG. It is the figure which looked at the meshing state of an oscillation drive gear and a driven gear from the back side.
The present invention will be described by exemplifying a spinning reel as a fishing reel. However, the present invention can be applied to various fishing reels (both bearing reels, etc.) incorporating a power transmission mechanism.

  The reel body 1 of the spinning reel is integrally formed with a reel leg 1a attached to a fishing rod. A rotor 2 rotatably supported in front of the reel leg 1 and a reciprocating motion in the front-rear direction in synchronization with the rotational motion of the rotor 2. A spool 3 supported in a possible manner is arranged. The rotor 2 is integrally formed with a pair of arms so as to rotate around the spool 3, and a bail support member 2 b with a base end of the bail 2 a attached to each front end is a fishing line winding. It is rotatably supported between the take-off position and the fishing line discharge position. One base end portion of the bail 2a is attached to a fishing line guide portion 2c provided integrally with the bail support member 2b. Further, the spool 3 is formed with a fishing line winding body portion 3a, and the fishing line is wound around this portion.

  A handle 4 as an input body is rotatably mounted on the reel body 1, and by rotating the handle 4, a power transmission mechanism disposed in the reel body, which will be described in detail below, is used. Thus, the rotor 2 and the spool 3 which are output bodies are driven to rotate and reciprocate back and forth, respectively.

  The power transmission mechanism includes a drive shaft (handle shaft) 6 rotatably supported through a pair of bearings, and a drive gear (face) mounted on the one end side of the drive shaft 6 so as to be integrally rotatable with the drive shaft. Gear) 7. In this case, the drive gear 7 may be integrally formed with the drive shaft 6 or may be formed separately from the drive shaft and attached to the drive shaft 6 so as to be integrally rotatable. Further, male screw portions 6a and 6b constituting screwing portions are formed at both end portions of the drive shaft 6 so as to protrude from the side surface of the reel main body, and the handle 4 is provided on either side of the reel main body. It is configured to be wearable. The male screw portion on the side where the handle is not mounted is covered with a cap member 10 which is detachably mounted on the reel body.

  The power transmission mechanism includes a pinion gear 12 that meshes with the drive gear 7 and that extends in a direction orthogonal to the drive shaft 6 and has a hollow portion that penetrates in the axial direction. The pinion gear 12 is rotatably supported via a pair of bearings 13, and a spool shaft 3 b that extends in a direction perpendicular to the drive shaft 6 and has the spool 3 mounted on the tip side is provided in the hollow portion. It is inserted so as to be movable in the axial direction. Further, the rotor 2 is attached to the tip of the pinion gear 12.

  The reel body 1 incorporates an oscillating mechanism 20 that constitutes a power transmission mechanism, and drives the spool 3 (spool shaft 3b) back and forth. The oscillating mechanism 20 includes an oscillating drive gear (input side gear) 21 provided on the drive shaft 6 so as to be rotatable integrally therewith, and a reel body 1 that is rotatably supported by a bearing 22 and is engaged with the oscillating drive gear. A gear (output side gear) 23 is included (detailed configurations of the oscillating drive gear 21 and the driven gear 23 will be described later).

  An engagement protrusion 30 is integrally formed at the end of the surface of the driven gear 23. The engagement protrusion 30 is formed on a slider 31 screwed to the rear end of the spool shaft 3b. The engagement groove 32 is engaged. As a result, when the driven gear 23 is rotationally driven via the oscillating drive gear 21 by the winding operation of the handle 4, the engagement protrusion 30 is guided into the engagement groove 32 while moving along a predetermined rotation locus. Along with this, the spool shaft 3b (spool 3) is driven back and forth.

  By winding the handle 4 with the power transmission mechanism described above, the rotor 2 is rotationally driven via the drive gear 7 and the pinion gear 12, and the spool 3 is reciprocated back and forth via the oscillating mechanism 20. When driven, the fishing line is evenly wound around the fishing line winding body 3a of the spool 3 via the fishing line guide 2c.

  The oscillating drive gear 21 is constituted by arranging (polymerizing) two gears 21a and 21b side by side, and each gear 21a and 21b is attached to the drive shaft 6 so as to be integrally rotatable. . In this case, the gear 21 a is integrally formed on the outer peripheral surface of the drive shaft 6 by cutting, and the gear 21 b is non-rotatably fitted to the outer peripheral surface of the drive shaft 6. Both gears are formed so that the gear 21a side has more teeth than the gear 21b and the pitch circle is larger, and the module (pitch circle / number of teeth) for specifying the tooth size of both gears is It is comprised so that it may become equal.

  The driven gear 23 is configured as a resistance imparting connecting gear in which two gears 23a and 23b are arranged (polymerized) side by side, and a cylindrical portion 23c is formed on the surface of the gear (main gear) 23a. A gear (support gear) 23b is attached to the portion 23c. In this case, a resistance imparting connecting means is provided between the gear 23a and the gear 23b so that the gear 23b can rotate relative to the gear 23a while imparting resistance in the rotational direction.

  The resistance imparting connection means of the present embodiment forms a circumferential groove on the inner periphery of the gear 23b, and an O-ring 23d formed of a rubber material or the like is interposed between the circumferential groove and the outer periphery of the cylindrical portion 23c. The retainer 23e is attached to the outer periphery on the front end side of the cylindrical portion 23c, so that the gear 23b is prevented from coming off. Both gears are formed so that the gear 23a side has fewer teeth than the gear 23b and the pitch circle is small, and the modules of both gears are configured to be equal.

  Then, the gear 21a of the oscillating drive gear 21 and the main gear 23a of the driven gear 23 are engaged with each other, and the gear 21b of the oscillating drive gear 21 and the support gear 23b of the driven gear 23 are engaged with each other. The power is transmitted to the oscillating mechanism 20 side.

  According to the configuration of the oscillating drive gear 21 and the driven gear (resistance imparting connecting gear) 23 that meshes with the oscillating drive gear 21, the main gear 23a and the support gear 23b having different numbers of teeth are arranged in parallel on the driven gear 23 side. A difference in rotational speed is generated between the two during power transmission. This rotational speed difference appears as a resistance acting on the friction surface by the O-ring in the circumferential direction. As a result, the backlash generated between the gear 21a of the drive gear 21 and the main gear 23a of the driven gear 23 is absorbed. Thus, a spinning reel can be obtained in which the occurrence of unpleasant vibration, abnormal noise, etc. due to backlash is effectively suppressed during the winding operation of the handle. In this case, even if the handle is rotated in any direction, the same effect can be obtained by the frictional resistance acting in the circumferential direction of the support gear 23b.

  In addition, by using the above configuration for the oscillating mechanism, it is possible to eliminate backlash due to backlash that occurs when switching the rotational direction at the front and rear ends of the oscillating without using a spring, thus simplifying the structure and reducing costs. It becomes possible. Further, in the above-described configuration, it is only necessary to arrange gears having different numbers of teeth in parallel, and it is not necessary to interpose a spring member between them or to form a holding means for the spring member. As a result, the cost can be reduced and the assembling work can be easily performed. Furthermore, since the configuration is simple, it can be formed by cutting, and the gear accuracy is not reduced.

  The resistance applying connection gear described above is one of the resistance applying connection means for superposing a plurality (two) of gears (main gear and support gear) and allowing both gears to rotate relative to each other. Although a certain friction coupling means is provided, the structure can be variously modified as long as it provides resistance in the rotation direction.

  For example, in the above-described embodiment, the pitch circle of the main gear 23a is configured to be smaller than the pitch circle of the support gear 23b and the number of teeth is reduced. However, as illustrated in FIG. The circle may be made larger than the pitch circle of the support gear 23b and the number of teeth may be increased (the modules of both gears are configured to be the same).

  Moreover, as shown in FIG.7 and FIG.8, the main gearwheel 23a and the support gearwheel 23b may be comprised so that a module (size of a tooth | gear) may differ. In the case of such a resistance imparting connection gear, the gears 21a and 21b of the oscillating drive gear 21 that mesh with the resistance imparting connection gear are formed to be the same as the modules of the main gear 23a and the support gear 23b, respectively.

  A similar effect can be obtained by the resistance imparting connecting gear configured as shown in FIGS.

  Further, the above-described resistance imparting connecting means is configured as an O-ring 23d which is a friction connecting means formed of a rubber material or the like interposed between the inner periphery of the gear 23b and the outer periphery of the cylindrical portion 23c. As shown in FIG. 7, it may be composed of grease 23f having a high viscosity, or may be composed of a resin collar having elasticity, or the like, as long as it provides resistance in the rotational direction between them.

  Further, in the above-described embodiment, the resistance imparting connection gear is installed on the driven gear side in the gear train, but may be used on the input-side gear (in the above-described embodiment, on the oscillating drive gear 21 side). Further, two or more support gears superimposed on the main gear may be arranged side by side. Further, in the above-described configuration, the meshing relationship by the spur gear has been described. However, the present invention can also be applied to a transmission gear portion disposed in a portion where the drive shaft is obliquely intersected.

  The present invention can be applied to various devices in which a power transmission mechanism using gears is used in addition to a fishing reel.

It is a figure which shows one Embodiment of this invention, and is a side view which shows the internal structure of a spinning reel. Sectional drawing which looked at the reel main body from the back side. The figure which expands and shows an oscillating mechanism part. The figure which shows the meshing state of an oscillation drive gear and a driven gear. The figure which looked at the meshing state of the oscillation drive gear and the driven gear from the rear side. It is a figure which shows the 1st modification of the said embodiment, and is the figure which looked at the meshing state of the oscillation drive gear and the driven gear from the back side. It is a figure which shows the 1st modification of the said embodiment, and is the figure which looked at the meshing state of the oscillation drive gear and the driven gear from the back side. The figure which shows the meshing state of an oscillation drive gear and a driven gear in the structure shown in FIG.

Explanation of symbols

1 Reel body 2 Rotor (output body)
3 Spool (output body)
4 Handle (input body)
21 Oscillating drive gear 23 Driven gear (resistance imparting connecting gear)
23a Main gear 23b Support gear 23d O-ring 23f Grease

Claims (1)

In a fishing reel provided with a power transmission mechanism having a plurality of transmission gears in order to transmit a rotation operation of a handle provided in the reel body to an output body,
At least one of the plurality of transmission gears is configured by arranging a main gear and a support gear having a different number of teeth from the main gear,
A fishing reel characterized in that a resistance-applying connecting means is provided between the gears so that the gears can rotate relative to each other while applying resistance in the rotational direction.

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