JP4375805B2 - Fishing reel - Google Patents

Description

  The present invention relates to a fishing reel that has been improved so as to prevent backlash between a rotation shaft that is rotated by rotation of a drive mechanism provided in a reel body and a rotation-stop fitting portion of a gear.

  Conventionally, a fishing reel houses a winding drive mechanism and an oscillating mechanism inside the reel body, and the reel driving body and the oscillating mechanism are connected to the reel body. A rotational driving force of a handle attached rotatably is transmitted through a gear train. A gear is usually fitted to a shaft with a non-rotating fit, and the structure is formed by forming a non-circular portion such as a slot on the shaft, and similarly processing a hole of a shape into a gear and fitting both of them together. In this case, in this case, the non-circular portion is likely to be loose, and the shaft and the gear are difficult to be centered. Therefore, the gear may be eccentric, and an immediate improvement has been desired.

In order to solve the above-mentioned problem, for example, in Patent Document 1, while forming a circular hole in the gear and forming a non-circular portion, centering is performed between the circular portion of the shaft portion and the circular portion of the gear portion. A technique for preventing rotation while increasing the accuracy of centering by engaging a non-circular portion of a gear with a plate having a protrusion engaged with a non-circular portion of a shaft portion is described.
JP-A-9-313079

  However, although the above-mentioned known techniques improve the accuracy of centering, since the rotation of the gear and the shaft is stopped through separate members, the radial play is large and the play in the thrust direction can be suppressed. Therefore, abnormal noise and vibration are generated during normal winding. In particular, if looseness is likely to occur in the non-circular portion, the gears are liable to tilt, resulting in poor meshing or uneven wear on the tooth surface, which leads to abnormal noise and vibration, and durability. Will be reduced. Furthermore, since the number of parts is large and it is difficult to incorporate, the manufacturing and assembly costs increase and the reel becomes expensive.

  The present invention has been made by paying attention to the above-mentioned problems. In the detent portion between the gear and the shaft, the centering accuracy is increased and the inclination of the gear is eliminated. Furthermore, the generation of abnormal noise and vibration is prevented. An object of the present invention is to provide a fishing reel that can be prevented and reduced in cost.

  In order to solve the above-described problems, the present invention provides a fishing reel provided with a reel main body that houses reel components and a driving mechanism that winds a fishing line around a spool in the reel main body. A non-circular anti-rotation portion and a circular support portion are formed on the outer periphery of the rotating shaft rotated by rotation, and a fitting comprising a recess that fits into the non-circular anti-rotation portion inside one side of the gear A central hole that fits into the circular support portion in the cylindrical portion of the gear and the gear, and supports the gear directly by rotating the cylindrical portion of the gear to a bearing provided in the reel body, An elastic member is interposed between the circular support portion of the rotating shaft and the cylindrical portion of the gear.

  According to the present invention, a fishing reel can be obtained that has a high centering accuracy and eliminates the inclination of the gear at the non-rotating portion of the gear and the shaft, prevents abnormal noise and vibration, and can reduce costs. It is done.

  1 to 4 show a fishing spinning reel which is an embodiment of a fishing reel according to the present invention. FIG. 1 is a cross-sectional plan view of an essential part of the fishing spinning reel, FIG. FIG. 3 is an enlarged sectional plan view of a main part of a fishing spinning reel, FIG. 3 is an exploded enlarged sectional plan view of a rotating shaft and gears, and FIG. 4 is an exploded perspective view of the rotating shaft and gears.

  In the fishing spinning reel, one side opening of the reel body 1 is closed by a lid body 10, and the lid body 10 is attached by a screw (not shown) formed in the reel body 1. The outer periphery of the rotating shaft 2 a of the rotating body 2 is supported by the waterproof bearing 11 attached to the reel body 1 via the cylindrical portion 3 a of the gear 3, and the rotating body 2 is attached by the waterproof bearing 12 attached to the lid body 10. One side outer periphery of the rotary shaft 2a is supported. A drive gear 2b is integrally formed on one side of the outer periphery of the rotary shaft 2a, and a non-circular detent portion b and a circular support portion a are formed by a flange 2c and a notch 2d on the other outer periphery of the rotary shaft 2a. A circumferential groove 2e is formed. An elastic member 13 made of an O-ring is fitted in the circumferential groove 2e. A gear 3 is fitted to the non-circular detent portion b and the circular support portion a to prevent the rotation.

  The gear 3 is formed with a cylindrical portion 3a, a tooth portion 3b, and a center hole 3c, and a fitting portion 3d including a recess into which a non-circular detent b is fitted is formed inside one side of the center hole 3c. ing.

  As shown in FIG. 2, a female screw hole 2f, a fool hole 2g, a female screw hole 2h, and a fool hole 2j are formed in the rotating shaft 2a from the right end to the left side. The male screw 4a of the handle shaft 4 is screwed into the female screw hole 2f. At this time, the male screw 4b of the handle shaft 4 is inserted into the hole 2g. When the male screw 4b is screwed into the female screw hole 2h by exchanging the handle shaft 4 left and right, the male screw 4a is inserted into the fool hole 2i. A handle 14 is foldably connected to the handle shaft 4.

  A rotating shaft cylinder 5 is rotatably supported by a waterproof bearing 15 at the front portion of the reel body 1 and protrudes to the front side. The reverse rotation preventing wheel 16 and the central shaft cylinder 6 a of the rotor 6 are fitted to the outer periphery of the rotary shaft cylinder 5 on the front side of the bearing 15 and fixed with a nut 17. The base end 5a of the rotary shaft cylinder 5 is rotatably supported by the through hole 1b of the bearing portion 1a, and the drive gear 2b is meshed with a pinion 5b integrally formed on the front side of the base end 5a. The handle 14 is supported so as to be rotated in conjunction with the rotation of the handle 14. A spool shaft 7 having a spool 18 attached to the tip thereof is slidably inserted in the center hole 5c of the rotary shaft cylinder 5 so as to be able to reciprocate back and forth. A sliding body 8 is attached to 7 a with screws 19.

  The rotor 6 is attached to the rotary shaft cylinder 5 by a central shaft cylinder 6a, and forwards from the outer periphery of the central shaft cylinder 6a, the front wall 6b, the large diameter cylinder portion 6c, and the bases 6d and 6e of the large diameter cylinder portion 6c. It is formed by a pair of support arms 6f and 6g protruding toward the surface. One bail support member 20 and the other bale support member 21 are reversibly turned to the fishing line winding position and the fishing line discharge position by screws 22 and 23 on the outer side of the tip end portions of the pair of bail support arms 6f and 6g. It is bearing. An attachment portion 25 of a fishing line guide roller 24 is attached to one of the bell support members 20. A bail 26 is attached between the other bale support member 21 and the attachment portion 25 of the fishing line guide roller 24. The fishing line 27 wound around the spool 18 is guided by the fishing line guide roller 24 and pulled out.

  The sliding body 8 is formed of a plate-like main body portion 8a and a protruding portion 8b. An engaging groove 8c in the vertical direction is formed in the main body 8a, and a lateral rotation-preventing through hole 8d is formed in the protruding portion 8b. Further, a screw hole 8e orthogonal to the rotation preventing through hole 8d is formed in the protruding portion 8b, and a screw 19 is inserted. The sliding body 8 is provided so as to be movable and guided in the front-rear direction while restricting movement in the rotational direction relative to the spool shaft 7 by a shaft rod (not shown) provided in the front-rear direction of the reel body 1. A gap is formed between the opposing surfaces of the sliding body 8 and the interlocking gear 9 so as not to contact each other, and the sliding body 8 is moved and guided in the front-rear direction.

  A support portion 1c made of a shaft cylinder is formed on the side wall surface in the reel body 1, and the interlocking gear 9 is supported by the support portion 1c via a rolling bearing 28, and an annular shape made of a rib formed on the side wall surface. Is mounted on the base 1d. The interlocking gear 9 is formed in the shape of a spur gear, a tooth portion 9a is formed on the outer periphery, a shaft hole 9b is formed in the center, and an engaging protrusion 9c is formed at an eccentric position on one side surface. A rolling bearing 28 is inserted into the shaft hole 9 b at the center of the interlocking gear 9, and the rolling bearing 28 is prevented from coming off by a screw 29 screwed into a support portion 1 c formed of a shaft cylinder in the reel body 1. The engaging protrusion 9 c of the interlocking gear 9 is inserted into the engaging groove 8 c of the sliding body 8. The interlocking gear 9 is meshed with a gear 3 that is fixed to the outer periphery of the rotary shaft 2a. In this embodiment, the gear 3, the interlocking gear 9, and the sliding body 8 constitute an oscillating mechanism that allows the spool 18 and the spool shaft 7 to reciprocate back and forth.

  The spool 18 is formed by an outer peripheral fishing line winding body portion 18a around which the fishing line 27 is wound, a front flange portion 18b, and a rear large-diameter cylindrical portion 18c.

  The operation of the fishing spinning reel is such that one of the bail support members 20 and the other bail support member 21 are in the fishing line winding position and the fishing line 27 is wound around the spool 18. When the handle 14 is rotated, the drive gear 2b is rotated, the rotary shaft cylinder 5 is rotated via the pinion 5b, and the rotor 6 is rotated. When the driving gear 2b is rotated, the rotating shaft 2a is rotated, the gear 3 is rotated, and the interlocking gear 9 is rotated. By the rotation of the interlocking gear 9, the sliding body 8 is linearly reciprocated by the engaging projection 9c, so that the spool shaft 7 and the spool 18 are linearly reciprocated, and the fishing line provided on one of the bale support members 20 is provided. The fishing line 27 is guided by the guide roller 24 and wound in parallel with the spool 18 which is reciprocated back and forth. That is, the sliding body 8, the spool shaft 7, and the spool 18 are converted into a linear reciprocating motion by the rotational motion of the interlocking gear 9.

  The gear 3 to which the driving force is transmitted by the rotation of the rotating body 2 includes an elastic member 13 formed of an O-ring by fitting the cylindrical portion 3a of the gear 3 to the circular support portion a of the rotating shaft 2a of the rotating body 2. The drive force of the rotating shaft 2 a is transmitted to the gear 3 by being interposed and stopped by a fitting portion 3 d formed of a non-circular rotating stop b of the rotating shaft 2 a and a recess of the gear 3.

  When the fishing reel is configured as described above, the cylindrical portion 3a of the gear 3 is fitted to the circular support portion a of the rotating shaft 2a of the rotating body 2 so that the non-circular shape of the rotating shaft 2a is formed. Since it is prevented from rotating by the fitting portion 3d formed of the rotation preventing portion b and the concave portion of the gear 3, and the driving force of the rotating shaft 2a is transmitted to the gear 3, the number of parts is small and it is easy to incorporate as compared with the known technique. Manufacturing costs and assembly costs can be reduced. Further, an elastic member 13 made of an O-ring is interposed between the circular support portion a of the rotating shaft 2 a of the rotating body 2 and the cylindrical portion 3 a of the gear 3, so that the fitting portion of the rotating shaft 2 a and the gear 3 is inserted. The backlash is reduced, and the backlash can be reduced to zero particularly at light loads, so that vibration and abnormal noise during normal winding can be prevented.

  Furthermore, since the rotating shaft 2a of the rotating body 2 is fitted in the cylindrical portion 3a of the gear 3, and the cylindrical portion 3a is supported by the bearing 11 to directly support the gear 3, the meshing failure due to the inclination of the gear 3 is prevented. It can be eliminated, and uneven wear of the tooth surface is prevented, abnormal noise and vibration are prevented, and durability is remarkably improved. In this case, the elastic member 13 made of an O-ring is interposed between the circular support portion a of the rotating shaft 2a of the rotating body 2 and the cylindrical portion 3a of the gear 3, thereby preventing abnormal noise and vibration and durability. At the same time, the intrusion of water from between the rotating shaft 2a and the gear 3 can be prevented, so that a reel having high durability and high waterproofness can be provided.

  Further, the non-circular anti-rotation portion b of the rotating shaft 2a and the fitting portion 3d composed of the concave portion of the gear 3 are used to prevent the rotation, and the circular support portion a of the rotating shaft 2a and the cylindrical portion 3a of the gear 3 are used as the core. Since the support and the shaft support are performed, the support accuracy of the gear 3 is increased, and the elastic member 13 is interposed in the circular support portion a, so that the holding groove of the elastic member 13 can be easily formed, and the processing is simple. In addition, the backlash of the fitting portion between the gear 3 and the rotary shaft 2a is reduced, and the backlash can be reduced to zero particularly at light loads, so that vibration and noise during normal winding can be prevented.

  FIG. 5 is a view showing a second embodiment of the present invention, and is an enlarged cross-sectional plan view of a rotating shaft and gears in the fishing spinning reel described above.

  In this embodiment, the non-circular detent portion b of the rotating shaft 2a of the rotating body 2 is constituted by a pin 30, and a fitting portion 3e formed of a recess into which the pin 30 can be fitted is formed on the gear 3. . Other configurations are substantially the same as those of the first embodiment.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described fishing spinning reels, and includes various rotating shafts and gears around other types of fishing reels such as a dual-bearing reel. It is possible to apply to a stop fitting part. For example, the present invention can be applied to a drive shaft in which a spiral groove is formed in an oscillating mechanism and a gear portion that is fitted to the drive shaft and is rotationally driven by a drive gear.

The main part sectional top view of the spinning reel for fishing which shows 1st Embodiment of the fishing reel. The principal part expanded sectional top view of the spinning reel for fishing. The exploded enlarged sectional plan view of a rotating shaft and a gear. The exploded perspective view of a rotating shaft and a gearwheel. It is a figure which shows 2nd Embodiment and is an expanded sectional top view of the rotating shaft and gearwheel in the spinning reel for fishing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reel body 2a Rotating shaft 3 Gear 3a Cylindrical part 3d, 3e Fitting part 13 Elastic member a Circular support part b Non-circular detent part

Claims (1)

In a fishing reel provided with a reel body that accommodates the components of the reel and a drive mechanism that winds a fishing line around the spool in the reel body,
A non-circular anti-rotation portion and a circular support portion are formed on the outer periphery of the rotating shaft rotated by the rotation of the drive mechanism, and a recess that fits into the non-circular anti-rotation portion inside one side of the gear Forming a center hole that fits the circular support portion in the fitting portion and the cylindrical portion of the gear;
The cylindrical portion of the gear is supported by a bearing provided on the reel body to directly rotate and support the gear, and an elastic member is fitted between the circular support portion of the rotating shaft and the cylindrical portion of the gear. A fishing reel characterized by the interposition.

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