JP2003189768A - Spinning reel for fishing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spinning reel for fishing maintaining its smooth rotation over a long period with easy maintenance. <P>SOLUTION: This spinning reel for fishing has the following scheme: a rotor 16 with a fishline guide is fixed on a drive cylindrical shaft 26 supported rotatably on the reel body 12 and threaded with a spool shaft 36 inside, and the drive cylindrical shaft 26 and the rotor 16 are rotated via a handle 14 to reel a fishline from the guide around a spool 18, wherein at least one of a nut 28 fixing the rotor 16 on the drive cylindrical shaft 26 and the shaft 26 is disposed while a collar 48 in sliding contact with the spool shaft 36 and grooves 50 are formed on the sliding contact surface of the collar 48. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing spinning reel, and more particularly to a fishing spinning reel in which a spool shaft is inserted through a drive cylinder shaft that interlocks with a handle.

[0002]

2. Description of the Related Art Generally, in a fishing spinning reel, a rotor provided with a fishing line guide portion is fixed to a drive cylinder shaft which is rotatably supported by a reel body and in which a spool shaft is inserted. By rotating the drive cylinder shaft and the rotor via the fishing line, the fishing line is wound from the fishing line guide portion of the rotor onto the spool.

At this time, the drive cylinder shaft is rotated at a high speed together with the rotor by increasing the rotation of the handle through the drive mechanism formed by the gear train. On the other hand, the spool shaft is axially moved back and forth within the drive cylinder shaft via the oscillating mechanism, whereby the fishing line is wound in parallel on the spool fixed to the front portion of the spool shaft.

As described above, the driving cylinder shaft that rotates at a high speed and the spool shaft that moves back and forth in the axial direction have different directions and speeds of movement, so that frictional resistance is formed on the sliding surfaces that are in contact with each other. In particular, when the entire inner peripheral surface of the drive cylinder shaft comes into contact with the spool shaft, the frictional resistance on the sliding surface is large. In addition, since the sliding surface is wide, when foreign matter such as wear dust or sand formed by long-term use is caught, it is difficult for the sliding surface to be discharged, and the sliding surface is damaged. Such scratches on the sliding surface generate abnormal noise and grow into larger scratches, and finally rotation failure occurs due to the entrapment of these foreign matters.

Japanese Unexamined Patent Publication No. 11-266755 discloses that in order to reduce such sliding resistance and prevent scratches and rotation failures due to foreign matter being caught, the inner peripheral surface of the drive cylinder shaft or the spool shaft is contacted. Disclosed is a fishing spinning reel in which a convex sliding guide portion is formed on a contact surface. According to this fishing spinning reel, the convex sliding guide portion formed on the inner peripheral surface of the drive cylinder shaft or the contact surface of the spool shaft contacts the sliding surface of the other party, so that the contact area is narrow. It is formed. Therefore, the frictional resistance is small, and the foreign matter is easily discharged from the sliding surface.

[0006]

However, the fishing spinning reel described in JP-A-11-266755 has room for further improvement in the following points. That is,
If the wear exceeds the allowable limit after long-term use, the drive cylinder shaft needs to be replaced. Since the drive cylinder shaft meshes with the drive gear of the drive mechanism, the unit cost of the parts is high and the maintenance cost is high. When the drive cylinder shaft is replaced, it is necessary to polish the tooth surface in order to prevent poor engagement with the drive gear that meshes with the drive cylinder shaft, which increases labor and cost.

Even when the drive cylinder shaft is not replaced, when the grease between the drive cylinder shaft and the spool shaft is replaced, the grease is removed from the step formed on the inner peripheral surface of the drive cylinder shaft. Is difficult to completely remove.

Further, the grease applied to the respective sliding surfaces of the drive cylinder shaft and the spool shaft is gradually scraped out from the sliding surfaces by the sliding of these sliding surfaces. If the sliding surface runs out of oil film after long-term use, wear will be accelerated and rattling will increase. Furthermore,
When a load acts on the spool from the device through the fishing line,
The spool shaft may bend, and a strong force acting between the spool shaft and the drive cylinder shaft may cause seizure. Therefore, there is room for improvement in durability.

The present invention has been made under the above circumstances, and an object of the present invention is to provide a fishing spinning reel which maintains smooth rotation for a long period of time and is easy to maintain.

[0010]

A fishing spinning reel according to the present invention that achieves the above objects has a fishing line guide portion attached to a drive cylinder shaft rotatably supported by a reel body and having a spool shaft inserted therein. By fixing the rotor provided and rotating this drive cylinder shaft and rotor via the handle,
A spinning reel for fishing, wherein a fishing line is wound around a spool from a fishing line guide portion of a rotor, wherein at least one of a nut for fixing the rotor to a drive cylinder and a drive cylinder has a collar slidably contacting the spool shaft. It is characterized in that the groove is formed on the sliding surface of the collar which is arranged and slidingly contacts the spool shaft.

Further, another spinning reel for fishing according to the present invention comprises a rotor provided with a fishing line guide portion on a drive cylinder shaft which is rotatably supported by the front portion of the reel body and through which a spool shaft is inserted. A spinning reel for fishing, wherein a fishing line is wound around a spool from a fishing line guide portion of a rotor by fixing and rotating the driving cylinder shaft and a rotor through a handle, and A direction in which the drive cylinder shaft winds the fishing line on the spool on a sliding contact surface that forms a lubricant holding portion and is in sliding contact with the spool shaft at least at one end side of the holding portion along the axial direction of the drive cylinder shaft. The groove is formed so as to extend in the direction of guiding the lubricant to the holding portion when rotated.

[0012]

1 to 4 show a fishing spinning reel according to a first preferred embodiment of the present invention.
As shown in the overall structure of FIG. 1, the fishing spinning reel 10 of the present embodiment includes a reel body 12, and a reel leg mounting portion (not shown) of a fishing rod via a reel mounting leg portion 12a extending from the reel body 12. Mounted on. A rotor 16 that rotates with respect to the reel body by rotating the handle 14 and a spool 18 that reciprocates back and forth with respect to the reel body are provided at the front portion of the reel body 12. The fishing line can be evenly wound in parallel on the spool 18 from a fishing line guide portion (not shown) provided in the section. Reference numeral 20 indicates a bail attached to the rotor 16, and by tilting this bail from the illustrated fishing line winding position to the fishing line discharging position, the fishing line can be freely paid out from the spool 18.

The reel body 12 has two bearings 22, 2
4 is arranged along the front-rear direction, the inner cylinder portion 16a of the rotor 16 is mounted on the drive cylinder shaft 26 rotatably supported by these two bearings, and the nut 28 screwed from the front end side is attached.
Is fixed integrally with the drive cylinder shaft 26. The pinion gear 30 is provided on the outer peripheral portion on the rear end side of the drive cylinder shaft 26.
And engages with a large-diameter drive gear 34 attached to the handle shaft 32. Accordingly, when the handle 14 is rotated, the handle shaft 32 extending in the direction orthogonal to the drive cylinder shaft 26 is rotated, and the drive gear 34 is rotated from the handle shaft 32.
The drive cylinder shaft 26 and the rotor 16 fixed thereto are rotated via the pinion gear 30 and the drive cylinder shaft 26. When the large-diameter drive gear 34 meshes with the small-diameter pinion 30, the drive cylinder shaft 26 rotates at a higher speed than the handle shaft 32.

Further, a spool shaft 36 having a spool 18 attached to the front end is inserted into the drive cylinder shaft 26. A slider 38 is fixed to the rear end side of the spool shaft 36, and the slider 38 meshes with the cam groove 42 of the traverse cam shaft 40 rotated by the drive gear 34 described above. As a result, when the handle 14 is rotated, the traverse cam shaft 40 rotates and the slider 38 guided by the cam groove 42.
As a result, the spool 18 and the spool shaft 36 reciprocate in the front-rear direction. The drive gear 34 is the traverse cam shaft 40.
When the spool 18 is moved in the front-rear direction by the spool shaft 36, the rotor 16 also rotates around the spool shaft 36 by the drive cylinder shaft 26 by rotationally driving the drive cylinder shaft 26 and the drive cylinder shaft 26.

As shown in an enlarged view in FIG. 2, in this embodiment, the drive cylinder shaft 2 serves as a holding portion for grease or lubricant.
A concave portion 44 is formed over the entire circumference in the axial center of the inner peripheral surface of 6, and a reduced diameter portion 46 formed at the rear end of the drive cylinder shaft 26 and a detachable portion at the front end. Color 48
And slide on the spool shaft 36. A lubricant film is formed on the sliding contact surface with a lubricant supplied from the recessed portion 44 to reduce friction with the spool shaft 36 and reduce sliding resistance.

As shown in FIGS. 3 and 4, the collar 48 of this embodiment has an outer diameter dimension larger than that of the recess 44 and an inner diameter dimension substantially equal to that of the reduced diameter section 46. 26
It is fitted in the accommodating portion 49 formed at the front end portion of the. Therefore, the inner peripheral surface of the drive cylinder shaft 26 is formed by the reduced diameter portion 46, the recessed portion 44, and the accommodating portion 49 into a stepped structure in which the diameter is sequentially increased from the rear end side to the front end side. Further, this accommodating portion 49
Has an axial dimension that is the same as or slightly shorter than collar 48. Accordingly, when the cap nut 28 is screwed onto the drive cylinder shaft 26 and the rotor 16 is fixed to the drive cylinder shaft 26, the collar 48 causes the inner flange portion 28 a of the cap nut 28, the housing portion 49, and the recess 44. It is firmly held between the step portion formed between and and does not cause rattling.

Any suitable means can be used as long as it can prevent the collar 48 from moving inside the accommodating portion 49. For example, when the axial dimension of the collar 48 is shorter than that of the accommodating portion 49, an appropriate spacer may be arranged inside the accommodating portion 49. Further, instead of the illustrated embodiment, a cap nut (not shown) separate from the nut 28 for fixing the rotor 16 is used to hold the rotor 16, or the outer peripheral surface of the collar 48 and the inner peripheral surface of the accommodating portion 49 are provided with each other. It is also possible to form threads that screw together.

A plurality of slits or grooves 50 are formed along the axial direction on the inner peripheral surface of the collar 48, that is, the sliding contact surface that is in sliding contact with the spool shaft 36. The grooves 50 of the present embodiment extend over the entire length of the collar 48 and are arranged at equal intervals in the circumferential direction.

In such a fishing spinning reel 10, since the drive cylinder shaft 26 supports the spool shaft 36 via the reduced diameter portions 46 and the collar 48 located at both ends of the recess 44 for containing the lubricant, The area of the sliding contact surfaces is small, and the sliding resistance is reduced by the oil film or the lubricating film formed on the sliding surfaces by the lubricant supplied from the recesses 44, and the handle operation becomes light. Further, the groove 50 formed on the inner peripheral surface of the collar 48 reduces the contact resistance of the inner peripheral surface of the collar 48, that is, the sliding surface, and supplies the lubricant evenly over the entire sliding surface. As a result, the sliding resistance is further reduced, and the handle 14 can be smoothly rotated. Collar 48 and spool shaft 36 due to wear
If the gap between the and is enlarged and rattling occurs, the rattling of the rotor 16 or the spool 18 can be prevented and smooth rotation can be maintained only by replacing the collar 48.

Further, even if foreign matter such as sand is accidentally caught in the sliding surface, it is easily discharged from the groove 50. As a result, it is possible to prevent the sliding portion from being damaged by foreign matter and prevent the occurrence of rotation failure. Then, even if foreign matter is caught, the foreign matter can be easily removed from the drive cylinder shaft 26 by removing the collar 48, and a new lubricant can be obtained without leaving the old lubricant inside. It can be replaced and its maintenance can be performed easily.

FIG. 5 shows a drive cylinder shaft 26 according to another embodiment.
a is shown. The embodiment described below is based on the same principle as the above-described embodiment, and the same members are denoted by the same reference numerals and detailed description thereof will be omitted. Figure 5
The drive cylinder shaft 26a shown in (1) has accommodating portions 49 formed at both ends thereof, and the collars 48 are accommodated in these accommodating portions, respectively. The collar 48 on the rear end side may be fixed using the cap nut as described above, and the outer diameter of the cap nut in this case has a shape and a size that do not interfere with the drive gear 34.

In this case, as the wear progresses, the spool shaft 3
Even when the space between the collar 6 and 6 becomes large, it is possible to return to the initial state by exchanging only the collar 48. At this time, since it is not necessary to replace the pinion gear 30, the meshing between the pinion gear 30 and the drive gear 34 can be maintained, and the grinding of the tooth surface for optimizing the meshing state is not required. Thereby, the cost required for maintenance can be reduced. In such replacement of the collar 48, it is not always necessary to replace the collars 48 at both ends at the same time, and it is possible to replace only one of them depending on the situation.

FIG. 6 shows an embodiment in which the shape of the groove formed in such a collar is changed. The collar 48A shown in FIG. 6A has a groove 50A extending along the rotational direction of the drive cylinder shaft 26, that is, the circumferential direction. In addition, (B) in the figure
The collar 48B shown in (1) has a groove 50B extending in an inclined shape or a spiral shape. The inclination direction or extension direction of the groove 50B is formed so as to guide the lubricant to the recess 44 when the collar 48B rotates together with the drive cylinder shaft 26.
Therefore, as shown in FIG. 5, the accommodating portion 4 formed on both end sides
When housed in the housing 9, it is preferable that the grooves 50B are arranged so that the extending directions thereof are opposite to each other.

Further, in FIG. 7, instead of the collar as described above, the groove 5 is formed on the sliding surface of the reduced diameter portion 52 at both ends of the drive cylinder shaft 26B.
An embodiment in which 0C is directly formed is shown. In this embodiment, the grooves 50C formed on the inner peripheral surface of each reduced diameter portion 52 extend in the opposite directions at equal pitches and angles, but the present invention is not limited to this, and the pitches or angles of the respective grooves 50C may be changed. The groove 50C may be changed, and it is possible to form such a groove 50C only on one of the reduced diameter portions 52.

The sliding surface formed with the grooves 50A, 50B, 50C also reduces the contact resistance with the spool shaft 36 and forms a uniform lubricant film, as in the above embodiment. Further, even if foreign matter is caught, it can be discharged from these grooves, and large scratches can be prevented from being formed on the sliding surface.

In each of the above-described embodiments, the cross-sectional shape of each groove is shown as a rectangular shape, but the shape is not limited to this, and it is possible to have various shapes such as an arc shape or a mountain shape. It is also possible to combine the respective embodiments as appropriate.

[0027]

As is apparent from the above, according to the present invention,
A spinning reel for fishing, which has a simple structure, maintains smooth rotation for a long period of time, and is easy to maintain.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a part of a fishing spinning reel according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram in which a part of FIG. 1 is enlarged.

FIG. 3 is an explanatory view showing a state in which a drive cylinder shaft and a collar of the fishing spinning reel of FIG. 1 are separated.

FIG. 4 is an enlarged vertical and horizontal sectional view of the collar shown in FIG.

FIG. 5 is an explanatory view similar to FIG. 3, showing a drive cylinder shaft and a collar according to another embodiment in a separated state.

FIG. 6 is an enlarged cross-sectional view of a collar having various grooves according to another embodiment.

FIG. 7 is a cross-sectional view of a drive cylinder shaft according to still another embodiment.

[Explanation of symbols]

10 ... Spinning reel for fishing, 12 ... Reel body, 1
4 ... Handle, 16 ... Rotor, 18 ... Spool, 28 ...
Nut, 48 ... Collar, 50 ... Groove.

Claims (3)

[Claims] 1. A rotor provided with a fishing line guide portion is fixed to a drive cylinder shaft rotatably supported by a reel body and a spool shaft is inserted therein, and the drive cylinder shaft and the rotor are rotated via a handle. By doing so, a fishing spinning reel for winding a fishing line from a fishing line guide portion of a rotor onto a spool, wherein the spool shaft is attached to at least one of a nut and a driving cylinder shaft for fixing the rotor to the driving cylinder shaft. Place a color that slides on the sliding surface of the collar that slides on this spool shaft.
A spinning reel for fishing characterized by having a groove formed. 2. A lubricant holding portion is formed on an inner peripheral surface of the drive cylinder shaft, and the groove is provided with a lubricant when the drive cylinder shaft is rotated in a direction of winding a fishing line on a spool. The spinning reel for fishing according to claim 1, wherein the spinning reel extends in a direction leading to the holding portion. 3. A rotor provided with a fishing line guide portion is fixed to a drive cylinder shaft that is rotatably supported by the front portion of the reel unit and a spool shaft is inserted inside, and the drive cylinder shaft and A spinning reel for fishing, wherein a fishing line is wound on a spool from a fishing line guide portion of a rotor, wherein a lubricant holding portion is formed on an inner peripheral surface of the drive cylinder shaft, The lubricant is retained on the sliding contact surface that is in sliding contact with the spool shaft on at least one end side of the holding portion along the axial direction of the cylindrical shaft when the drive cylindrical shaft is rotated in the direction of winding the fishing line on the spool. A spinning reel for fishing, characterized in that a groove extending in a direction leading to the portion is formed.