JP2001112386A - Clutch apparatus for double bearing reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clutch apparatus having excellent durability, not limiting the diameter of a clutch pin and hardly deforming a spool shaft when the clutch pin is inserted into the spool shaft with force. SOLUTION: A clutch 13 of double bearing reel has a mechanism for connecting and disconnecting a spool shaft 16 to which a spool 12 is fixed to and from a pinion gear 32 movable in the axial direction of the spool shaft 16 and is equipped with a clutch pin 20, a connection channel 32d and a cover part 12c. The clutch pin 20 is a pin which is passed through the spool shaft 16 in the radial direction at one side part of the spool 12 and fixed. The connection channel 32d is a channel which is arranged at one end face of the pinion gear 32 and can be connected to the clutch pin 20. The cover part 12c is protrusively installed at one side of the pool 12 so as to cover both ends of the clutch pin 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch device, and more particularly to a dual bearing reel clutch device for connecting and disconnecting a pinion gear and a spool shaft to which a spool is fixed.

[0002]

2. Description of the Related Art A dual-bearing reel generally includes a reel body having a handle, a spool for a bobbin rotatably mounted on the reel body, and a clutch device for connecting and disconnecting the spool and the handle. . The rotation of the handle is transmitted to the spool via the clutch device, and the spool rotates according to the rotation of the handle. In addition, when the clutch device is set to the disengaged state, the spool is freely rotated, and the fishing line can be paid out by the weight of the tackle.

[0003] The clutch device generally has a clutch engaging portion provided on each of a pinion gear for transmitting rotation of a handle to a spool and a spool shaft. The clutch engaging portion provided on the spool shaft of the bait casting reel includes a clutch pin disposed radially through the spool shaft and an engaging groove formed on an end face of the pinion gear and engaging with the clutch pin. ing. The spool shaft has a through hole through which the clutch pin passes. The fitting between the clutch pin and the through-hole is set tight so that the clutch pin mounted in the through-hole does not come off under a load. For this reason, the clutch pin is pressed into the spool shaft at a relatively high pressure.

[0004]

In the conventional clutch device, since the clutch pin is press-fitted into the spool shaft at a relatively high pressure, buckling may occur unless the diameter of the clutch pin is increased. For this reason, the diameter of the clutch pin cannot be reduced, and the diameter of the clutch pin is limited. Further, since the spool shaft is press-fitted with high pressure, the spool shaft may be bent and deformed at the time of press-fitting.

As a conventional technique capable of preventing these problems, a clutch engaging portion having an oval cross section having parallel chamfers is provided on a spool shaft, and a clutch engaging portion having an oval hole engaging with the cross section is formed by a pinion. A gear provided on an end face of a gear is known. However, the clutch device using the oval-shaped concave-convex engagement wears the corner portions when the connection and disconnection of the clutch are repeated, and is inferior in durability in comparison with the clutch pin type.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a clutch device which is excellent in durability, does not limit the diameter of a clutch pin, and hardly deforms a spool shaft during press-fitting.

[0007]

A clutch device for a dual-bearing reel according to a first aspect of the present invention is a device for connecting and disconnecting a spool shaft on which a spool is fixed and a pinion gear movable in the axial direction of the spool shaft. , A clutch pin, an engagement groove, and a cover. The clutch pin is a pin mounted on one side of the spool so as to penetrate the spool shaft in the radial direction. The engagement groove is a groove provided on one end surface of the pinion gear so as to be able to engage with the clutch pin. The cover portion is provided on one side surface of the spool so as to protrude so as to cover both ends of the clutch pin. The cover portion only needs to protrude so as to cover at least both ends of the clutch pin, and does not need to cover the entire spool shaft.

In this clutch device, the engagement groove engages and disengages with the clutch pin by the movement of the pinion gear in the spool axis direction, and the clutch device is connected / disconnected, and the spool shaft and the pinion gear are connected / disconnected. Is done. When the pinion gear rotates during the connection, the rotation is transmitted to the clutch pin and a load acts. Even if the clutch pin attempts to come off under this load, both ends of the clutch pin are covered by the integrally rotating cover, so that the clutch pin is prevented from coming off. Here, the clutch pin is prevented from coming off by the cover, so that the clutch pin can be pressed into the spool shaft with a relatively low pressure. Therefore, buckling is less likely to occur even if the diameter of the clutch pin is reduced, and the possibility of deforming the spool shaft during press fitting is reduced. For this reason, it is possible to provide a clutch device which is excellent in durability, in which the diameter of the clutch pin is not limited, and in which the deformation of the spool shaft at the time of press-fitting does not easily occur.

A clutch device for a dual-bearing reel according to a second aspect of the present invention is the clutch device according to the first aspect, wherein the clutch pin is mounted on the spool shaft with an intermediate fit.
In this case, since the clutch pin is mounted on the spool shaft by the fit of the intermediate fit between the interference fit and the clearance fit, the clutch pin can be easily press-fitted. A clutch device for a dual-bearing reel according to a third aspect of the present invention is the device according to the first or second aspect, wherein the cover portion is arranged concentrically with the spool and has a cylindrical shape that covers both ends of the clutch pin. In this case, since the cover portion is cylindrical, both ends of the clutch pin can be covered without positioning the clutch pin in the circumferential direction of the spool shaft. Therefore, the work of assembling the spool shaft to the spool and the processing of the spool shaft become easy. In addition, when mounted on the spool or when integrally formed with the spool, centering with the spool shaft is easy, and both ends of the clutch pin can be reliably covered with the cover portion. Moreover, since it is arranged concentrically with the spool, the rotation balance is not lost.

A spinning reel according to a fourth aspect of the present invention is a spinning reel according to the first aspect.
4. In the device according to any one of to 3 above,
It is formed integrally with the spool. In this case, since the cover can be processed together with the spool, the cover and the spool shaft are arranged concentrically, so that the gap between the cover and the cover at both ends of the clutch pin can be easily made uniform. A spinning reel according to a fifth aspect of the present invention is the spinning reel according to any one of the first to third aspects, wherein the cover portion is a separate member attached to the spool. In this case, since the cover is a separate member from the spool, the clutch pin can be mounted on the spool shaft after the spool shaft is mounted on the spool. Therefore, there is no need to consider the direction in which the spool shaft is inserted into the spool, and the spool assembly process is simplified.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Structure] In FIG. 1, a dual-bearing reel adopting an embodiment of the present invention is a low-profile type reel for bait casting. The reel includes a reel body 1, a spool rotation handle 2 arranged on the side of the reel body 1, and a drag adjusting star drag 3 arranged on the handle 2 on the reel body 1 side.

As shown in FIG. 2, the reel body 1 has a frame 5, and first and second side covers 6a and 6b mounted on both sides of the frame 5. Further, as shown in FIG. 1, the reel body 1 has a front cover 7 that covers the front, and a thumb rest 8 that covers the upper part. A spool 12 for winding a bobbin is rotatably and detachably mounted inside the reel body 1.

The frame 5 includes a pair of side plates 5a and 5b arranged to face each other at a predetermined interval, and a plurality of connecting portions (not shown) connecting these side plates 5a and 5b. Have. The first side cover 6a is connected to the spool 1
2 is swingably mounted on the frame 5 so as to be detachable, and can be opened and closed with respect to the frame 5. The second side cover 6b is screwed to the frame 5 from the inside. For this reason, the screw is not exposed outside the second side cover 6b, and the surface of the second side cover 6b is a smooth surface.

In the frame 5, as shown in FIG. 2, a spool 12 arranged in a direction perpendicular to the fishing rod, a level wind mechanism 15 for uniformly winding the fishing line in the spool 12, and It can be used for your thumb,
The clutch lever 17 is disposed. A gear mechanism 18 for transmitting the rotational force from the handle 2 to the spool 12 and the level wind mechanism 15, a clutch mechanism 13, and a clutch lever 17 are provided between the frame 5 and the second side cover 6 b. A clutch engaging / disengaging mechanism 19 for engaging and disengaging and controlling the clutch mechanism 13, a drag mechanism 21, and a casting control mechanism 22 for adjusting a resistance force when the spool 12 rotates are arranged. Further, a centrifugal brake mechanism 23 for suppressing backlash during casting is arranged between the frame 5 and the first side cover 6a.

The spool 12 has a dish-shaped flange portion 12a on both side portions, and a cylindrical bobbin trunk portion 12b between both flange portions 12a. In addition, the bobbin trunk 12
As shown in FIG. 3, the side plate 5b
A cover part 12c protruding toward the b side is mounted. The cover portion 12c is mounted to prevent the clutch pin 20 described below from coming off, and is arranged with a gap from both ends of the clutch pin 20 so as to cover both ends of the clutch pin 20. The cover 12 c is a cylindrical member made of, for example, a synthetic resin or a metal.
The mounting protrusion 12d formed in a ring shape on the side surface of the side plate 2b on the side of the side plate 5b is press-fitted and fixed. The mounting projection 12d is formed concentric with the spool axis. For this reason, the cover part 12c is also arranged coaxially with the spool shaft 16.

The spool 12 is non-rotatably press-fitted and fixed to a spool shaft 16 passing through the bobbin trunk 12b, for example, by serration connection. This fixing method is not limited to serration connection, and various connection methods such as key connection and spline connection can be used. This spool 1
2 can pass through the opening 5d of the side plate 5a. The spool shaft 16 extends outside the second side cover 6b through the side plate 5b. The extended one end is rotatably supported by a bearing 24a on a boss 6c formed on the second side cover 6b. The other end of the spool shaft 16 is rotatably supported in the centrifugal brake mechanism 23 by a bearing 24b. These bearings 24a and 24b are shield ball bearings.

At the center of the spool shaft 16, a large diameter portion 1 is provided.
6a are formed. The right end of the large diameter portion 16a is
It is arranged in the penetrating portion of the side plate 5b,
As shown in FIGS. 5 to 5, a clutch pin 20 constituting the clutch mechanism 13 is fixed by press-fitting. The clutch pin 20 is mounted in a through hole 16b formed in the spool shaft 16 along the radial direction, for example, by fitting of an intermediate fit, and is pressed into the through hole 16b of the spool shaft 16 with a relatively low pressure. I have. The clutch pin 20 penetrates the large diameter portion 16a along the diameter, and both ends protrude in the radial direction. Both protruding ends are covered by a cover portion 12c, and the clutch pin 20 is prevented from coming off by the cover portion 12c.

The gear mechanism 18 has a handle shaft 30, a main gear 31 fixed to the handle shaft 30, and a cylindrical pinion gear 32 meshing with the main gear 31. The pinion gear 32 is, as shown in FIG.
Is a tubular member that extends inward from the outside and has a center through which a spool shaft 16 penetrates, and is mounted on the spool shaft 16 so as to be movable in the axial direction. The left end of the pinion gear 32 in FIG. 2 is supported by the side plate 5b by a bearing 43 so as to be rotatable and movable in the axial direction. This bearing 43 is also a shield ball bearing.

The pinion gear 32 has a toothed portion 32a formed on the outer peripheral portion on the right end side in FIG. 2 and meshing with the main gear 31; And a constricted portion 32c formed at the bottom. As shown in FIG. 3 to FIG. 5, the engagement groove 32 is formed on the end face of the pinion gear 32 along the diameter.
2d is formed. The clutch pin 20 fixed through the spool shaft 16 is engaged with the engagement groove 32d. The clutch pin 20, the engagement groove 32d and the cover 1
2c constitutes the clutch mechanism 13.

Here, when the pinion gear 32 moves outward and the engagement groove 32d and the clutch pin 20 are disengaged, the rotational force from the handle shaft 30 is not transmitted to the spool 12. This state is a clutch off (disengaged) state, and at this time, the spool 12 is in a free rotation state. When the clutch pin 20 is engaged with the engagement groove 32d, torque is directly transmitted from the large-diameter pinion gear 32 to the spool shaft 16.
This state is a clutch-on (coupled) state. At this time, the large-diameter portion 1 of the spool shaft 16 from the pinion gear 32
Since torque is directly transmitted to 6a, torsional deformation is further reduced, and torque transmission efficiency is improved.

As shown in FIG. 2, the clutch lever 17 is disposed behind the spool 12 at a rear portion between the pair of side plates 5a and 5b. The clutch engagement / disengagement mechanism 19 has a clutch yoke 40 as shown in FIG. The clutch yoke 40 is arranged on the outer peripheral side of the spool shaft 16, and is connected in parallel to the axis of the spool shaft 16 by two pins 41 (only one of which is shown) (FIG. 3A) and a cutoff position ( It is movably supported between FIG. 3B and FIG.
The clutch yoke 40 has a pinion gear 3 at its center.
It has an engaging portion 40a that engages with the second constricted portion 32c. A spring 42 is arranged between the clutch yoke 40 and the second side cover 6b on the outer periphery of each pin 41 supporting the clutch yoke 40, and the clutch yoke 40 is always urged inward by the spring 42. I have. When the clutch lever 17 is pushed down, the clutch yoke 40 moves from the connection position to the disconnection position.

With such a configuration, in the normal state, the pinion gear 32 is located at the inner clutch engagement position.
The engagement groove 32d and the clutch pin 20 are engaged, and the clutch is in the ON state. On the other hand, the clutch yoke 40
When the pinion gear 32 moves outward due to
The engagement between the engagement groove 32d and the clutch pin 20 is released, and the clutch is turned off.

As shown in FIG. 2, the drag mechanism 21 is used to press the friction plate 45 against the main gear 31 with a predetermined force by rotating the star drag 3 and the friction plate 45 pressed against the main gear 31. Press plate 46
And Casting control mechanism 22
Has a plurality of friction plates 51 arranged so as to sandwich both ends of the spool shaft 16, and a braking cap 52 for adjusting the force of holding the spool shaft 16 by the friction plates 51. The left friction plate 51 is mounted in the brake case 65.

The centrifugal brake mechanism 23 is disposed in a brake case 65 detachably mounted on the side plate 5a, and brakes the spool 12 by centrifugal force. The centrifugal brake mechanism 23 includes a braking member 68 fixed to a brake case 65, a rotating member 66 concentrically arranged on the inner peripheral side of the braking member 68 and fixed to the spool shaft 16, and a radial member A plurality (for example, 6
And a moving member 67).

[Operation of Clutch] When the clutch lever 17 is pushed down, the clutch yoke 40 moves from the connection position shown in FIG. 3A to the disengagement position shown in FIG. 3B. As a result, the pinion gear 32 moves to the cut-off position side, the engagement between the engagement groove 32d and the clutch pin 20 is released, and the clutch is turned off.

When the handle 2 rotates in the line winding direction in the clutch off state, the clutch yoke 40 returns from the disengaged position to the connected position by the action of a clutch return mechanism (not shown) and a spring 42. Then, the pinion gear 32 moves to the connection position side, and the engagement groove 32d and the clutch pin 20 are moved.
Are engaged and the clutch is turned on. The rotation of the handle 2 is transmitted to the spool 12 via the handle shaft 30, the main gear 31, and the pinion gear 32.

At this time, a load may be applied to the clutch pin 20 press-fitted with a low pressure, and the clutch pin 20 may be disengaged. However, since both ends of the clutch pin 20 are covered with the cover portion 12c that rotates integrally, the clutch pin 20 does not come off. For this reason, it is not necessary to press-fit the clutch pin 20 with a relatively high pressure as in the related art, but it is sufficient to press-fit the clutch pin 20 with a low pressure. Therefore,
There is no need to consider buckling during press-fitting, and there is no need to limit the diameter. Further, since the press-fitting may be performed with a low pressure, the spool shaft does not bend and deform at the time of press-fitting.

Since the cover portion 12c has a cylindrical shape, the cover portion 12c has a cylindrical shape, so that both ends of the clutch pin 20 can be covered without positioning the clutch pin 20 in the circumferential direction of the spool shaft 16. Can be.
Therefore, the work of assembling the spool shaft 16 to the spool 12 and the processing of the spool shaft 16 are facilitated. Further, when the cover portion 12ca is mounted on the spool 12 or when the cover portion 12ca is formed integrally with the spool 12, the centering with the spool shaft 16 is easy.
Can be reliably covered. In addition, since it is arranged concentrically with the spool 12, the rotation balance is not lost.

[Other Embodiments] (a) In the above embodiment, the cover portion 12c is provided separately from the spool 12 in order to facilitate the assembly of the spool shaft. However, as shown in FIG. 12 may be integrally formed. In this case, when assembling the spool shaft 16 to the spool 12, the clutch pin 20 is mounted in advance in the through hole 16 b of the spool shaft 16, and the spool shaft 16 with the clutch pin 20 is mounted on the cover 12 c side of the spool 12. Need to be press-fitted.

(B) In the above embodiment, the cover 12c
Has a cylindrical shape, but the cover portion 12c may have a shape that covers both end portions of the clutch pin 20. For example, FIGS.
As shown in FIG. 7, a pair of flat (FIG. 7) or arc-shaped (FIG. 8) members may be used. In this case, when assembling the spool shaft 16 to the spool 12, it is necessary to perform positioning in the rotational direction so as to cover both ends of the clutch pin 20 reliably.

(C) In the above embodiment, the bait casting reel was described as an example, but the present invention can be applied to all dual bearing reels including the electric reel. (D) In the above embodiment, the spool shaft 16 penetrates the pinion gear 32. However, if the clutch pin 20 penetrates the spool shaft 16, the spool shaft 16 penetrates the pinion gear 32. The present invention can be applied to a double-bearing reel of a type not provided.

[0032]

According to the present invention, since the clutch pin is prevented from coming off by the cover, the clutch pin can be pressed into the spool shaft with a relatively low pressure. Therefore, buckling is less likely to occur even if the diameter of the clutch pin is reduced, and the possibility of deforming the spool shaft during press fitting is reduced. For this reason, it is possible to provide a clutch device which is excellent in durability, in which the diameter of the clutch pin is not limited, and in which the deformation of the spool shaft at the time of press-fitting does not easily occur.

[Brief description of the drawings]

FIG. 1 is a perspective view of a dual-bearing reel employing an embodiment of the present invention.

FIG. 2 is a plan sectional view thereof.

FIG. 3 is a partial cross-sectional view of a clutch device.

FIG. 4 is a plan view of the clutch device.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a diagram corresponding to FIG. 3 of another embodiment.

FIG. 7 is a view corresponding to FIG. 5 of another embodiment.

FIG. 8 is a diagram corresponding to FIG. 5 of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Spool 12c Cover part 13 Clutch mechanism 16 Spool shaft 20 Clutch pin 32 Pinion gear 32d Engagement groove

Claims (5)

[Claims] A spool shaft to which a spool is fixed is connected to a pinion gear that is movable in the axial direction of the spool shaft.
A clutch device for a dual-bearing reel that disconnects, wherein a clutch pin mounted radially through the spool shaft on one side surface of the spool and an end surface of the pinion gear can be engaged with the clutch pin. A clutch device for a dual-bearing reel, comprising: an engagement groove provided; and a cover portion provided on the one side surface of the spool so as to cover both ends of the clutch pin. 2. The dual-bearing reel clutch device according to claim 1, wherein said clutch pin is mounted on said spool shaft by an intermediate fit. 3. The clutch device for a dual-bearing reel according to claim 1, wherein the cover portion has a cylindrical shape that is arranged concentrically with the spool and covers both ends of the clutch pin. 4. The clutch device for a dual-bearing reel according to claim 1, wherein said cover portion is formed integrally with said spool. 5. The clutch device for a dual bearing reel according to claim 1, wherein said cover portion is a separate member mounted on said spool.