JP2004024119A - Spool shaft supporting structure for double bearing reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce vibrations at both end parts of a spool shaft in a spool shaft supporting structure of a double bearing reel in which both the end parts of the spool shaft are sharply formed. <P>SOLUTION: Tapered parts 25a having tapered shapes are formed at both the ends of the spool shaft 25. The tip parts of the tapered parts 25a are rotatably brought into contact with recessed parts 41a formed on receiving members 41. The outer wheels 28a of bearings 28 are fixed in the inside of an installation part 13a of a side cover 13. The receiving members 41 are fitted to the inner wheels 28b of the bearings 28. The recessed parts 41a recessed so as to fix the tip parts of the tapered parts 25a to the recessed parts are formed at the tip parts of the receiving members 41. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spool shaft support structure, and more particularly to a spool shaft support structure for a dual bearing reel.
[0002]
[Prior art]
In dual bearing reels called bait reels, which are mainly used for lure fishing, it is desired to increase the rotation speed of the spool in order to increase the casting distance. Japanese Patent Application Laid-Open No. 5-68453 discloses a dual bearing reel in which both ends of a spool shaft are sharply formed in order to rotate the spool at a high speed.
[0003]
In the spool shaft support structure disclosed in the above publication, both ends of the spool shaft are sharply formed, and both ends are engaged with the concave portion of the ceramic plate. Here, the area where both ends of the spool shaft contact the concave portion is reduced, and the frictional resistance is reduced. Therefore, the smoothness of rotation of the spool can be improved, and the casting distance can be increased.
[0004]
[Problems to be solved by the invention]
In the conventional spool shaft support structure, since both ends of the spool shaft are sharply formed, the casting distance can be increased. However, since the spool shaft is supported only by the sharp portions at both ends, there is a possibility that the spool shaft vibrates largely due to a slight displacement or error of the sharp portions. When the spool shaft vibrates in this way, the sharp portions at both ends of the spool shaft may be damaged.
[0005]
An object of the present invention is to reduce vibrations at both ends of a spool shaft in a spool shaft support structure of a dual-bearing reel in which both ends of the spool shaft are sharply formed.
[0006]
[Means for Solving the Problems]
A spool shaft support structure for a dual-bearing reel according to a first aspect of the present invention is a dual-bearing reel spool shaft support structure for rotatably supporting a spool shaft to which a spool for spooling a dual-bearing reel is fixed on a reel body. A pair of tapered portions formed at both ends of the shaft, a pair of support portions provided with a pair of recessed portions where the tips of the pointed portions are in contact, and a pair of support portions provided on the reel body. A pair of bearings for rotatably supporting the reel body.
[0007]
In this spool shaft support structure, the sharp end formed at both ends of the spool shaft is in contact with a recess formed in a support portion supported by a bearing portion provided on the reel body, and the spool shaft is reeled. It is rotatably supported on the body. Here, since the vibration of the spool is absorbed by the support portion, the vibration of both ends of the spool shaft can be reduced.
A spool shaft support structure according to a second aspect is the spool shaft support structure according to the first aspect, wherein the pair of bearing portions are rolling bearings. In this case, the spool shaft can be easily supported with an inexpensive configuration.
[0008]
A spool shaft support structure according to a third aspect of the present invention is the spool shaft support structure according to the first or second aspect, further comprising an urging member for urging the pair of bearing portions toward the spool. In this case, by providing an urging member such as a spring member, vibration at both ends of the spool shaft can be further reduced.
A spool shaft support structure according to a fourth aspect of the present invention is the spool shaft support structure according to any one of the first to third aspects, wherein the pair of support portions are mounted on the pair of bearing portions from the spool side. In this case, the support portion can be attached to the bearing portion after the bearing portion is mounted on the reel body, and the attachment of the support portion becomes easy.
[0009]
A spool shaft support structure according to a fifth aspect of the present invention is the spool shaft support structure according to any one of the first to third aspects, wherein the pair of support portions are mounted on the pair of bearing portions from the side opposite to the spool. I have.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
A dual bearing reel according to an embodiment of the present invention is a dual bearing reel having a round shape in a side view, as shown in FIGS. The dual-bearing reel includes a reel body 1, a handle 2 for spool rotation arranged on the side of the reel body 1, and a star drag 3 for drag adjustment arranged on the reel body 1 side of the handle 2. I have.
[0011]
The reel body 1 has a frame 5 and a pair of side covers 13 and 14 arranged on both sides of the frame 5. The frame 5 is formed by integrally molding a pair of side plates 10 and 11 having a circular shape in side view and a plurality of connecting members 12 connecting the both side plates 10 and 11, which are arranged at predetermined intervals. is there. The side cover 13 is fixed to the frame 5, and the side cover 14 is detachably attached to the frame 5 by two attachment / detachment screws 17 (see FIG. 1). A reel mounting leg 6 is fixed to a lower connecting member 12 (not shown) of the connecting member 12, and the reel body 1 can be fixed to a fishing rod (not shown) via the reel mounting leg 6.
[0012]
A spool 15 for winding fishing line is rotatably arranged between the side plates 10 and 11. The spool 15 has a cylindrical bobbin trunk 15a around which a fishing line is wound, and a pair of flanges 15b, 15b formed at both ends of the bobbin trunk 15a with large diameters. A level wind mechanism 16 for uniformly winding the fishing line on the spool 15 is also arranged between the side plates 10 and 11 alongside the spool 15. A rotation transmission mechanism 20 for transmitting rotation of the handle 2 to the spool 15 and the level wind mechanism 16 and a clutch mechanism 21 provided in the rotation transmission mechanism 20 are arranged outside the side plate 11 and inside the side cover 14. Have been. The rotation transmission mechanism 20 includes a drag mechanism 22 for regulating torque when torque is reversely transmitted from the spool 15 to the handle 2 side.
[0013]
As shown in FIG. 2, a spool shaft 25 is fixed to the center of the spool 15 such that the spool 15 cannot rotate and cannot move in the axial direction, for example, by serration coupling. The spool shaft 25 is rotatably supported by the side covers 13 and 14 via a receiving member 41 (an example of a support portion) and bearings 28 and 29 (an example of a bearing portion) described later.
[0014]
As shown in FIG. 2, tapered portions 25 a (an example of a sharp portion) having a tapered shape are formed at both ends of the spool shaft 25. The tapered portion 25a has a substantially conical shape having a tip as an apex as shown in an enlarged manner in FIG. The tip of the tapered portion 25a is rotatably in contact with a concave portion 41a (an example of a concave portion) formed in the receiving member 41.
As shown in FIGS. 2 and 3, the side cover 13 is formed with a stepped cylindrical mounting portion 13 a projecting inward, and an outer ring 28 a of a bearing 28 is fixed inside the mounting portion 13 a. I have. A stepped cylindrical receiving member 41 is attached to the inner ring 28 b of the bearing 28. At the center of the large-diameter portion 41b formed on one end side of the receiving member 41, as shown in FIG. . Here, the receiving member 41 is mounted on the bearing 28 from the spool 15 side, the small diameter portion 41c is inserted into the inner ring 28b of the bearing 28, and the large diameter portion 41b is in contact with the inner ring 28b. Thus, the axial position of the receiving member 41 is regulated.
[0015]
As shown in FIG. 2, the side cover 14 has a cylindrical mounting portion 14a protruding inward and is press-fitted, and a closing cap 14b for closing an opening is mounted outside the mounting portion 14a. . As shown in FIG. 2, an outer ring 29a of a bearing 29 is fixed inside the mounting portion 14a, and a stepped cylindrical receiving member 41 is attached to an inner ring 29b of the bearing 29. A concave portion 41a is formed in the receiving member 41, and the distal end of the tapered portion 25a is engaged with the concave portion 41a. The configuration of the receiving member 41 mounted on the side cover 14 and the mounting relationship of the bearing 29 are exactly the same as those on the side cover 13 side.
[0016]
A mechanism mounting member 19 for mounting various mechanisms including a rotation transmitting mechanism 20 is detachably mounted on the side cover 14. The mechanism mounting member 19 is formed with a boss 19a having an opening through which a pinion gear 32 mounted movably in the axial direction on the outer peripheral side of the spool shaft 25 can pass. The spool shaft 25 is provided with a boss 19a. The mechanism 27 is also rotatably supported by the mechanism mounting member 19 by a bearing 27 which is removably mounted on the mechanism 27.
[0017]
The rotation transmitting mechanism 20 includes a handle shaft 30 having one end to which the handle 2 is fixed, a main gear 31 connected to the other end of the handle shaft 30 via a drag mechanism 22, and a pinion gear 32 meshing with the main gear 31. Have. The rotation of the handle shaft 30 in the line pay-out direction is prohibited by a roller type one-way clutch 35 and a claw type one-way clutch (not shown). The handle shaft 30 is disposed parallel to the spool shaft 25, and the other end is rotatably supported by the mechanism mounting member 19. In such a configuration, when the clutch mechanism 21 is turned on, the rotational force from the handle 2 is directly transmitted to the spool 15.
[0018]
The clutch mechanism 21 has a pinion gear 32 and a clutch pin 36 disposed radially through the spool shaft 25. The clutch pin 36 can be engaged with an engagement groove 32a formed at one end of the pinion gear 32. When the clutch pin 36 is engaged with the engagement groove 32a, the clutch is turned on, and the pinion gear 32 moves in the axial direction. If it moves and comes off, the clutch will be off. The pinion gear 32 is urged in a clutch-on direction (leftward in FIG. 2) by urging means (not shown). A clutch mechanism 21 (see FIG. 1) serving as a clutch and a thumb rest disposed between the side plates 10 and 11 at the rear of the reel body 1 serves as a clutch. State). When the spool 15 rotates in the line pay-out direction, the clutch is switched from clutch off to clutch on by a return mechanism (not shown).
[0019]
In the dual bearing reel configured as described above, at the time of casting, the clutch mechanism 21 is brought into the clutch-off state by the clutch operating member 23, and the spool 15 is brought into a freely rotatable state. In this state, for example, casting is performed by holding the reel with the fishing rod with the right hand. Then, the fishing line vigorously pays out from the spool 15 due to the weight of the device.
[0020]
In this dual-bearing reel, the tapered portions 25a at both ends of the spool shaft 25 come into contact with the concave portions 41a of the receiving member 41 supported by the bearings 28 and 29 provided on the mounting portions 13a and 14a, and the spool shaft 25 is moved. It is rotatably supported on the reel body 1. Here, even if the spool shaft 25 vibrates, the member 41 receives the vibration of the spool shaft 25, so that the vibration of both ends of the spool shaft 25 can be reduced.
[0021]
[Other embodiments]
(A) In the above-described embodiment, the round dual-bearing reel is described as an example. However, the present invention can be applied to, for example, a low-profile type dual-bearing reel or another form of a dual-bearing reel.
(B) In the above embodiment, the receiving member 41 is mounted from the spool 15 side of the bearing 28, but as shown in FIG. 4, the receiving member 41 may be mounted from the opposite side of the spool 15 of the bearing 28. . Further, a friction plate 42 may be mounted on the bottom of the mounting portion 13a to function as a casting control by pressing the receiving member 41. Further, an urging member 43 such as a spring member for urging the bearing 28 toward the spool 15 may be provided. In this case, the vibration at both ends of the spool shaft 25 can be further reduced.
[0022]
(C) In the above-described embodiment, the tapered portions 25a are formed at both ends of the spool shaft 25. However, the shape of the tip portion of the spool shaft 25 is not limited to this, and as shown in FIG. A spherical portion 25b having a rounded tip portion of the spool shaft 25 may be formed.
[0023]
【The invention's effect】
According to the present invention, in the spool shaft support structure of the dual-bearing reel, the sharp portion in which both ends of the spool shaft are sharply formed is a recess formed in the support portion supported by the bearing portion provided on the reel body. Since the spool shaft is rotatably supported on the reel body in contact with the portion, vibrations at both ends of the spool shaft can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view of a dual bearing reel according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the dual bearing reel.
FIG. 3 is an enlarged sectional view of a spool shaft supporting portion.
FIG. 4 is a view corresponding to FIG. 3 of another embodiment.
[Explanation of symbols]
1 Reel Body 15 Spool 25 Spool Shaft 25a Tapered Parts 28, 29 Bearing 41 Receiving Member 41a Depression 43 Energizing Member

Claims (5)

A dual-bearing reel spool shaft support structure for rotatably supporting a spool shaft on which a spool for spooling a dual-bearing reel is fixed to a reel body,
A pair of tapered points formed at both ends of the spool shaft;
A pair of support portions provided with a pair of concave portions with which the tips of the sharp portions are in contact;
A pair of bearing portions provided on the reel body for rotatably supporting the pair of support portions with respect to the reel body;
Spool shaft support structure for dual-bearing reels. The spool shaft support structure for a dual-bearing reel according to claim 1, wherein the pair of bearing portions are rolling bearings. The spool shaft support structure for a dual-bearing reel according to claim 1 or 2, further comprising an urging member for urging the pair of bearing portions toward the spool. The spool shaft support structure for a dual-bearing reel according to any one of claims 1 to 3, wherein the pair of support portions are mounted on the pair of bearing portions from the spool side. The spool shaft support structure for a dual-bearing reel according to any one of claims 1 to 3, wherein the pair of support portions are mounted on the pair of bearing portions from a side opposite to the spool.

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