JP2004337065A - Reciprocating apparatus of spinning reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compactly arrange various gears in a reel body while keeping a reduction gear ratio in a reciprocating apparatus of a spinning reel. <P>SOLUTION: An oscillating mechanism 6 is a mechanism for reciprocating a spool forward and backward and is equipped with a stepped gear 13 rotatably attached to the reel body on a shaft different from a main gear, a driven gear 16, a screw 21 to which the driven gear 16 is unrotatably attached at the front part of the screw, a slider which is connected to the screw and to which a spool shaft is immovably longitudinally attached, and a pinion gear 12. The stepped gear has a large-diameter gear 19 and a small-diameter gear 20 coaxially disposed with the large-diameter gear. The driven gear is meshed with the small-diameter gear, and the pinion gear has a gear part 12a having an outer peripheral part to be meshed with the large-diameter gear and the main gear and a cut part 12c which is formed in a smaller diameter than that of the gear part and formed by being cut in the peripheral direction so as to be able to arrange the outer peripheral part of the driven gear. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reciprocating device, and more particularly, to a reciprocating device for a spinning reel that reciprocates a spool back and forth in conjunction with rotation of a face gear.
[0002]
[Prior art]
A traversing cam type oscillating mechanism (an example of a reciprocating moving device) of a spinning reel includes a driven gear that meshes with a pinion gear, a helical shaft having the driven gear mounted at its tip and disposed in parallel with a spool shaft, and a helical shaft. And a spool shaft is mounted on the slider so that the spool shaft cannot move in the axial direction.
[0003]
Such a traverse cam type oscillating mechanism has a stepped gear having a large diameter gear meshing with a pinion gear and a small diameter gear meshing with a driven gear in order to reduce manufacturing costs and reduce speed so as to easily ensure accuracy. A device provided with a gear is disclosed (for example, see Patent Document 1).
This oscillating mechanism is a device for reciprocating the spool back and forth in conjunction with the rotation of the face gear, and includes a pinion gear that rotates in conjunction with the rotation of the face gear, a stepped gear, and moving means. ing. The stepped gear is a gear portion having a large-diameter gear that meshes with the pinion gear, and a small-diameter gear that is arranged concentrically with the large-diameter gear and rotates integrally with the large-diameter gear. The moving means has a driven gear that meshes with the small-diameter gear, and is means for reciprocating the spool by rotation of the driven gear. Further, the pinion gear and the driven gear are arranged at positions where they do not abut each other.
[0004]
In such an oscillating mechanism, since the spool is reciprocated at a reduced speed by a stepped gear having a simple structure, it is not necessary to use a special gear, and an increase in manufacturing cost can be suppressed. In addition, since the rotating shaft of the stepped gear and the rotating shafts of the driving gear and the driven gear can be arranged in parallel, machining accuracy can be easily secured.
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2001-321041
[Problems to be solved by the invention]
In the above-described conventional configuration, by providing the stepped gear, an increase in manufacturing cost can be suppressed, and processing accuracy can be easily ensured. However, when the width of the reel body is reduced in order to make the entire reel compact, a storage space for storing various gears such as a pinion gear, a stepped gear, and a driven gear may be reduced. When the storage space of the reel body becomes small, it becomes difficult to arrange various gears. Therefore, it is conceivable to reduce the size of various gears. However, there is a possibility that the reduction ratio becomes smaller and desired performance is not exhibited.
[0007]
An object of the present invention is to make it possible to compactly arrange various gears on a reel body while maintaining a reduction ratio in a reciprocating device for a spinning reel.
[0008]
[Means for Solving the Problems]
A reciprocating device for a spinning reel according to a first aspect of the present invention is a reciprocating device for a spinning reel that reciprocates a spool back and forth via a spool shaft in conjunction with rotation of a face gear provided on a reel body of the spinning reel. , A stepped gear rotatably mounted on the reel body around an axis different from the face gear, a driven gear, and a driven gear, which is disposed parallel to the spool shaft and is non-rotatably mounted at the front part and has a helical crossing on the surface. A screw shaft having a groove formed therein, a slider having an engaging member mounted on the reel body movably back and forth and engaging with the groove and having a spool shaft mounted at least immovably back and forth, and a pinion gear. Have. The stepped gear includes a large-diameter gear and a small-diameter gear that is arranged concentrically with the large-diameter gear and rotates integrally with the large-diameter gear. The driven gear meshes with the small diameter gear. The pinion gear has a gear portion whose outer peripheral portion meshes with the large-diameter gear and the face gear, and is formed with a smaller diameter than the gear portion, and is notched in a circumferential direction so that the outer peripheral portion of the driven gear can be arranged while allowing rotation of the driven gear. And a notch formed.
[0009]
In this reciprocating device, when the face gear rotates, the pinion gear rotates in conjunction therewith. When the pinion gear rotates, the rotation is transmitted to the large diameter gear of the stepped gear, and the small diameter gear rotates together with the large diameter gear. When the small diameter gear rotates, the rotation is transmitted to the driven gear, and the spool reciprocates by the screw shaft and the slider. Here, the pinion gear has a notch formed by being cut in the circumferential direction to have a smaller diameter than the gear portion, and the outer peripheral portion of the driven gear can be arranged in the notch. For this reason, even if the storage space of the reel unit is reduced, by disposing the driven gear having the same reduction ratio in this notch portion, various gears can be compactly arranged on the reel unit while maintaining the reduction ratio. .
[0010]
A reciprocating device for a spinning reel according to a second aspect of the present invention is the device according to the first aspect, wherein the notch portion is disposed axially forward of the gear portion. In this case, since the driven gear mounted on the front part of the screw shaft is arranged in front of the gear portion of the pinion gear, the screw shaft is entirely arranged on the front side. For this reason, the rear end of the screw shaft is disposed on the front side, and the front-rear length (length in the spool axial direction) of the reel body can be reduced.
[0011]
A reciprocating device for a spinning reel according to a third aspect of the present invention is the device according to the first or second aspect, wherein the notch portion is a groove formed in the circumferential direction of the pinion gear, and the axial length of the groove is the axis of the driven gear. Larger than the direction length. In this case, the axial length of the groove portion is larger than the axial length of the driven gear, so that the rotation of the driven gear is not hindered.
A reciprocating device for a spinning reel according to a fourth aspect of the present invention is the device according to the first to third aspects, wherein the small-diameter gear and the large-diameter gear are formed separately. In this case, the small-diameter gear and the large-diameter gear can be formed by different members made of different materials. In particular, in the case of a rear drag type spinning reel in which the spool shaft rotates at the time of drag operation, a large force acts on the longitudinal movement of the slider during the drag operation, so that a large force acts on the small diameter gear. In such a case, the specific strength can be maintained high by using a material having a high specific strength for the small diameter gear.
[0012]
A reciprocating device for a spinning reel according to a fifth aspect of the present invention is the device according to the fourth aspect, wherein the small-diameter gear further has an engaging portion, and the large-diameter gear has an engaged portion with which the engaging portion is non-rotatably engaged. Have more. In this case, for example, an engaging portion projecting outward in the axial direction is formed on the small-diameter gear, and an engaged portion formed of a non-circular concave portion or through hole such as an oval shape is formed on the large-diameter gear. By engaging the portion with the engaged portion, the small-diameter gear can easily be connected to the large-diameter gear so that it cannot rotate.
[0013]
A reciprocating device for a spinning reel according to a sixth aspect of the present invention is the device according to the fourth or fifth aspect, wherein the small-diameter gear is formed by die casting. In this case, the specific strength of the small-diameter gear meshing with the driven gear can be kept high by die-casting a metal such as zinc.
A reciprocating device for a spinning reel according to a seventh aspect of the present invention is the device according to the fourth to sixth aspects, wherein the large-diameter gear is formed by gear cutting after pressing. In this case, for example, by pressing a metal member and then performing gear cutting by machining, it is easy to form a large-diameter gear whose shape tends to be complicated because it meshes with a pinion gear.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
[Overall configuration and configuration of reel body]
As shown in FIG. 1, a spinning reel employing one 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 of the reel body 2. The spool 4 winds the fishing line around the outer peripheral surface, and is disposed at the front of the rotor 3 so as to be movable back and forth.
[0015]
As shown in FIGS. 1 and 2, the reel body 2 includes a reel body 2a having an opening 2c at a side portion, a lid 2d for closing the opening 2c of the reel body 2a, and a diagonally upper front from the lid 2d. And a T-shaped rod mounting leg 2b extending integrally therewith.
The reel body 2a has a space inside, in which space the rotor drive mechanism 5 for rotating the rotor 3 in conjunction with the rotation of the handle 1 and the spool 4 for moving the spool back and forth to make the fishing line uniform. And an oscillating mechanism 6 for rewinding.
[0016]
At the front of the reel body 2a, a circular flange 2e for closing the rear of the rotor 3 is formed by the lid 2d. A circular partition 2g is formed behind the flange 2e on the reel body 2a side, and a circular space is formed behind the partition 2g.
[Rotor configuration]
As shown in FIG. 1, the rotor 3 includes a cylindrical portion 30 having an open rear end, and a first rotor arm 31 and a second rotor arm 32 provided on the sides of the cylindrical portion 30 so as to face each other. are doing. The cylindrical portion 30, the first rotor arm 31, and the second rotor arm 32 are integrally formed.
[0017]
The cylindrical portion 30 is arranged on the outer peripheral side of the flange portion 2e of the reel body 2a. The rear part of the opening of the cylindrical part 30 is closed by the flange part 2e. A front wall 33 is formed at the front of the cylindrical portion 30, and a boss 33 a is formed at the center of the front wall 33. The male screw portion 12e of the pinion gear 12 and the spool shaft 15 pass through the through hole of the boss 33a. A nut 34 is disposed on the front side of the front wall 33, and the nut 34 is screwed to the male screw portion 12 e at the tip of the pinion gear 12 to fix the rotor 3 to the pinion gear 12.
[0018]
A bail arm 44 for guiding the fishing line to the spool 4 is attached to the distal ends of the first rotor arm 31 and the second rotor arm 32 so as to be swingable between a line winding position and a line releasing position.
A reverse rotation prevention mechanism 50 for the rotor 3 is arranged in a space in front of the partition wall 2g of the cylindrical portion 30 of the rotor 3. The reverse rotation prevention mechanism 50 includes a roller-type one-way clutch 51 and an operation mechanism 52 that switches the one-way clutch 51 between an operating state and a non-operating state. In the one-way clutch 51, the outer ring is fixed to the reel body 2a, and the inner ring is non-rotatably mounted on the pinion gear 12. The operation mechanism 52 has an operation lever 53 disposed at the rear of the reel body 2a. By swinging the operation lever 53, the one-way clutch is switched between two states. Cannot rotate in the reverse direction, and the rotor 3 can rotate in the non-operation state.
[0019]
[Structure of spool]
The spool 4 is disposed between the first rotor arm 31 and the second rotor arm 32 of the rotor 3, and is fixed to the tip of the spool shaft 15 via a drag mechanism 60. The spool 4 includes a bobbin trunk 4a around which a fishing line is wound around an outer periphery, a skirt 4b integrally formed at a rear portion of the bobbin trunk 4a, and a front flange 4c integrally formed at a front portion of the bobbin trunk 4a. Have. The bobbin trunk 4a is a cylindrical member extending to the outer peripheral side of the cylindrical portion 30 of the rotor 3.
[0020]
[Configuration of rotor drive mechanism]
As shown in FIGS. 1 and 2, the rotor drive mechanism 5 includes a main gear shaft 10 on which the handle 1 is non-rotatably mounted, a main gear 11 that is a face gear that rotates together with the main gear shaft 10, And a pinion gear 12 that meshes with the pinion gear 11.
[0021]
The pinion gear 12 is rotatably mounted on the reel body 2 a around a position different from the main gear 11. As shown in FIGS. 3 and 4, the pinion gear 12 is a cylindrical member that rotates in conjunction with the rotation of the handle 1, and a spool shaft 15 extending in the front-rear direction passes through the center. The pinion gear 12 includes a gear portion 12a that meshes with the main gear 11 and a large-diameter gear 19, which will be described later, a cylindrical portion 12b that is formed on the distal end side of the gear portion 12a, and an axial front portion (left side in FIG. 4) of the gear portion 12a. And a notch portion 12c that is arranged and has a smaller diameter than the gear portion 12a. The pinion gear 12 is rotatably supported by the reel body 2a via bearings 14a and 14b on the cylindrical portion 12b and the rear side of the gear portion 12a. The gear portion 12a is a screw gear that meshes with the main gear 11, which is a face gear. At the tip of the cylindrical portion 12b, a chamfered portion 12d parallel to each other is formed, and a male screw portion 12e is formed. The rotor 3 is non-rotatably mounted on the chamfered portion 12d, and the rotor 3 is fixed to the distal end of the cylindrical portion 12b of the pinion gear 12 by a nut 34 screwed into the male screw portion 12e. The notch 12c is an annular groove formed in the circumferential direction, and the axial length of the groove is longer than the axial length of a gear portion of the driven gear 16 described later.
[0022]
[Configuration of oscillating mechanism]
The oscillating mechanism 6 is a mechanism that reciprocates the spool 4 back and forth via the spool shaft 15 in conjunction with the rotation of the handle 1. The oscillating mechanism 6 has a large-diameter gear 19 and a small-diameter gear 20 as shown in FIGS. 2 to 5, and is rotatably mounted on the reel body 2 around an axis different from the main gear 11 and is provided with a stepped gear 13. A driven gear 16 meshing with the small-diameter gear 20, a screw shaft 21 on which the driven gear 16 is non-rotatably mounted, a slider 22 that engages with the screw shaft 21 and moves back and forth, and the pinion gear 12 described above. are doing.
[0023]
The stepped gear 13 is provided for greatly reducing the rotation of the pinion gear 12 and transmitting the rotation to the driven gear 16. The stepped gear 13 is disposed in a circular space on the rear side (the right side in FIG. 4) of the partition 2g. The stepped gear 13 is rotatably supported by a mounting shaft 18 mounted on the partition wall 2g in parallel with the spool shaft 15. Both ends of the mounting shaft 18 are supported by the partition 2g and the bracket 2h arranged behind the partition 2g. The large-diameter gear 19 of the stepped gear 13 is a screw gear that meshes with the gear portion 12a of the pinion gear 12. The large-diameter gear 19 is formed by, for example, gear cutting after press working, and has a long groove-shaped engaging hole 19a at the center. The small-diameter gear 20 is a right-tooth gear arranged concentrically with the large-diameter gear 19. The small diameter gear 20 is formed by, for example, die casting. The small-diameter gear 20 is formed with an engagement projection 20 a that non-rotatably engages with the engagement hole 19 a so as to project toward the large-diameter gear 19. The mounting shaft 18 passes through the center of the small-diameter gear 20.
[0024]
The driven gear 16 is a right-tooth gear that meshes with the small-diameter gear 20, and has an outer peripheral portion disposed in the notch 12 c of the pinion gear 12. The outer peripheral portion of the driven gear 16 is arranged with a slight gap from the bottom of the cutout portion 12c formed by an annular groove.
By forming the notch portion 12c in the pinion gear 12 and arranging the outer peripheral portion of the driven gear 16 in the notch portion 12c, the driven gear 16 and the screw shaft 21 can be brought closer to the spool shaft 15. Various gears can be compactly arranged on the reel body 2 while maintaining the reduction ratio.
The screw shaft 21 is arranged parallel to the spool shaft 15 and is rotatably supported by the reel body 2a. A spirally intersecting groove 21a is formed on the outer peripheral portion of the screw shaft 21. The driven gear 16 is non-rotatably mounted on the tip of the screw shaft 21 as described above.
[0025]
The slider 22 has a slider body 25 and an engagement member 26 housed in the slider body 25. The slider body 25 is guided in parallel with the spool shaft 15 by two guide shafts 24a and 24b. The engagement member 26 is rotatably mounted in the slider body 25, and the tip of the engagement member 26 meshes with the groove 21 a of the screw shaft 21.
[0026]
[Reel operation and operation]
In this spinning reel, at the time of casting, the bail arm 44 is moved from the line winding position to the line releasing position. Then, the fishing rod is shaken to cast the device. Then, the fishing line is spirally discharged from the tip of the spool 4. At this time, since the fishing line is densely wound around the spool 4, the release resistance is reduced.
[0027]
When winding the fishing line, the bail arm 44 is lowered to the line winding position. This is automatically performed by the action of a cam and a spring (not shown) when the handle 1 is rotated in the line winding direction. When the handle 1 is rotated in the line winding direction, this rotational force is transmitted to the pinion gear 12 via the main gear shaft 10 and the main gear 11. The torque transmitted to the pinion gear 12 is transmitted to the rotor 3 via the front part of the pinion gear 12, and the rotor 3 rotates in the line winding direction.
[0028]
On the other hand, the stepped gear 13 is rotated by the large diameter gear 19 meshing with the pinion gear 12, and the rotation is transmitted to the driven gear 16 via the small diameter gear 20. As a result, the screw shaft 21 rotates at a rotation speed lower than the rotation speed of the pinion gear 12, that is, the rotation speed of the rotor 3. Then, by the rotation of the screw shaft 21, the slider 22 meshing with the groove 21a of the screw shaft 21 is guided by the guide shafts 24a and 24b and moves in the front-rear direction. Then, the fishing line guided to the spool 4 by the bail arm 44 is wound around the bobbin trunk 4a of the spool 4, and the fishing line is densely wound around the spool 4. Therefore, the fishing line is efficiently wound around the spool 4.
[0029]
In the spinning reel having such a configuration, the pinion gear 12 has a notch portion 12c formed by notching in a circumferential direction with a smaller diameter than the gear portion 12a, and the outer periphery of the driven gear 16 is driven by the notch portion 12c. The parts can be arranged. For this reason, even if the storage space of the reel body 2 is made small, various gears can be mounted on the reel body 2 while maintaining the reduction ratio by arranging the driven gear 16 having the same reduction ratio in the notch 12c. Can be arranged compactly.
[0030]
[Other embodiments]
(A) In the above embodiment, the front drag type spinning reel has been described as an example. However, the present invention can be applied to any type of spinning reel as long as it is a traverse cam type oscillating mechanism having a screw shaft.
In an oscillating mechanism of a rear drag type spinning reel, a spool shaft is rotatably connected to a slider so as not to move in the axial direction. In this case, a large force acts on the longitudinal movement of the slider during the drag operation, so that a large force acts on the small-diameter gear. In such a case, the small-diameter gear and the large-diameter gear are formed separately, and the small-diameter gear is made of a material having a high specific strength.
[0031]
(B) In the above embodiment, in order to facilitate the processing of the stepped gear 13 and increase the specific strength of the small-diameter gear 20 as compared with the large-diameter gear 19, the two gears 19, 20 are formed separately, and the material is formed. Although changed, both gears 19 and 20 may be formed integrally.
(C) In the above embodiment, the cutout portion is arranged in front of the gear portion, but may be arranged behind the gear portion. In this case, it is preferable to arrange the small-diameter gear behind the large-diameter gear instead of in front of it.
[0032]
【The invention's effect】
According to the present invention, the pinion gear has the notch formed by notching in the circumferential direction to have a smaller diameter than the gear portion, and the outer peripheral portion of the driven gear can be arranged according to the notch. For this reason, even if the storage space of the reel unit is reduced, by disposing the driven gear having the same reduction ratio in this notch portion, various gears can be compactly arranged on the reel unit while maintaining the reduction ratio. .
[Brief description of the drawings]
FIG. 1 is a left side sectional view of a spinning reel employing one embodiment of the present invention.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a perspective view of an oscillating mechanism.
FIG. 4 is a partial vertical cross-sectional view of the oscillating mechanism.
FIG. 5 is a sectional view taken along line VV of FIG. 4;
[Explanation of symbols]
2 Reel body 4 Spool 6 Oscillating mechanism 10 Main gear shaft 11 Main gear 12 Pinion gear 12a Gear portion 12c Notch portion 13 Stepped gear 15 Spool shaft 16 Follower gear 19 Large diameter gear 19a Engagement hole 20 Small diameter gear 20a Engage Convex part 21 Screw shaft 21a Groove 22 Slider 26 Engaging member

Claims (7)

A spinning reel reciprocating device that reciprocates a spool back and forth via a spool shaft in conjunction with rotation of a face gear provided on a reel body of the spinning reel,
A large-diameter gear, and a small-diameter gear that is arranged concentrically with the large-diameter gear and rotates integrally with the large-diameter gear, and is stepped and rotatably mounted on the reel unit around an axis that is different from the face gear. Gear and
A driven gear that meshes with the small-diameter gear;
A screw shaft that is arranged in parallel with the spool shaft, the driven gear is non-rotatably mounted on a front part, and a spiral intersecting groove is formed on the surface;
A slider mounted on the reel body so as to be movable back and forth, and having an engaging member engaged with the groove, wherein the spool shaft is mounted at least immovably in a longitudinal direction;
A gear portion having an outer peripheral portion meshed with the large-diameter gear and the face gear; and a circumferentially cutout formed in a smaller diameter than the gear portion so that the outer peripheral portion of the driven gear can be arranged while allowing rotation of the driven gear. A pinion gear having a notch portion formed by
Reciprocating device for spinning reels equipped with The spinning reel reciprocating device according to claim 1, wherein the notch portion is disposed axially forward of the gear portion. The notch is a groove formed in the circumferential direction of the pinion gear,
The reciprocating device for a spinning reel according to claim 1, wherein an axial length of the groove is greater than an axial length of the driven gear. 4. The spinning reel reciprocating device according to claim 1, wherein the small-diameter gear and the large-diameter gear are formed separately. The reciprocating motion of the spinning reel according to claim 4, wherein the small-diameter gear further has an engaging portion, and the large-diameter gear further has an engaged portion with which the engaging portion is non-rotatably engaged. apparatus. The reciprocating device for a spinning reel according to claim 4, wherein the small-diameter gear is formed by die casting. The reciprocating device for a spinning reel according to claim 4, wherein the large-diameter gear is formed by gear cutting after pressing.

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