JP2002204640A - Spool of spinning reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the spool of a spinning reel, in which the abrasion resis tance and durability of a front flange portion can be maintained to minimize the weight of the spool. SOLUTION: A spool 4 of a spinning reel is attached to the tip of a spool shaft 15 which can forward or backward be moved on the basis of a reel main body 2 of the spinning reel, is used for winding a fishing line thereon, and comprises a spool body portion 4a, a front flange portion 4c, and a flange-fixing member 47. A spool body portion 4a is attached to the tip of a spool shaft 15. The front flange portion 4c has a first flange portion 45 integrally formed in a flange-like shape on the outer periphery of the front end of the spool body portion 4a, and a ring-like second flange portion 46 detachably attached to the outer periphery of the first flange portion and made from a hard material. The flange-fixing member 47 is a member for fixing the second flange portion 46 to the first flange portion 45.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spool,
The present invention relates to a spool for a bobbin mounted on the end of a spool shaft that moves back and forth with respect to a reel body of a spinning reel.

[0002]

2. Description of the Related Art A spinning reel is generally provided with a reel body mounted on a fishing rod, a spool for a bobbin mounted on a tip end of a spool shaft which moves back and forth with respect to the reel body, and a rotatable mount mounted on the reel body. And a rotor for winding the fishing line around the spool. A spool of this type of spinning reel has a bobbin trunk around which a fishing line is wound, a skirt portion integrally formed at a rear end portion and having a larger diameter than the bobbin trunk portion, and a front flange portion provided at a front end portion of the bobbin trunk portion. have.

For the bobbin trunk and the skirt, a light metal material such as an aluminum alloy or a magnesium alloy is used to reduce the weight. On the other hand, the front flange portion may be provided in a ring shape separately from the bobbin trunk portion since the outer peripheral portion is likely to be worn or damaged by contact with the fishing line when the fishing line is fed. When the front flange is separate from the bobbin trunk, conventionally, considering durability and wear resistance,
Hard materials such as hard metals such as stainless steel and hard ceramics such as zirconia are used for the front flange portion.

[0004]

Hard materials such as stainless steel and zirconia are generally materials having a large specific gravity. For this reason, in the conventional spool in which the front flange portion is made of a hard material, it is difficult to reduce the weight of the spool as a whole even if the bobbin trunk portion and the skirt portion are reduced in weight. In particular,
In the case of a spool called a deep groove spool, in which the outer diameter of the front flange portion is larger than the outer diameter of the bobbin trunk portion, the difference in inner and outer diameters of the ring-shaped front flange portion increases, so that the volume of the front flange portion increases, and Weight increase.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a spool for a spinning reel, which can maintain the wear resistance and durability of a front flange portion and reduce the weight of the spool as much as possible.

[0006]

A spool of a spinning reel according to a first aspect of the present invention is a spool for a bobbin mounted on the end of a spool shaft that moves back and forth with respect to the reel body of the spinning reel, and includes a bobbin trunk and a bobbin body. , A front flange portion, and a flange fixing member. The bobbin trunk is mounted on the tip of the spool shaft. The front flange portion has a first flange portion provided in a flange shape on the outer peripheral side of the front end portion of the bobbin trunk portion, and is detachably mounted on the outer peripheral portion of the first flange portion and has a specific gravity higher than that of the bobbin trunk portion and the first flange portion. And a ring-shaped second flange portion made of a hard material. The flange fixing member is a member for fixing the second flange to the first flange.

In this spool, the first flange portion of the front flange portion is provided on the bobbin trunk, and the second flange portion, which has a higher specific gravity than the bobbin trunk portion and the first flange portion, has a first flange portion.
It is separate from the flange. For this reason, the weight of the first flange portion can be reduced together with the bobbin trunk portion. In addition, the fishing line mainly comes into contact with the fishing line at the outer peripheral portion of the front flange portion, and the second flange portion made of a hard material is detachably provided at that portion, so that the outer peripheral portion is damaged or worn. Can be prevented. Here, the front flange portion is divided into two portions, a second flange portion made of a hard material having a large specific gravity is arranged on an outer peripheral portion which is easily damaged by contact with the fishing line, and a first flange portion having a small specific gravity is formed on other inner peripheral portions. Since the parts are arranged, the wear resistance and durability of the front flange part can be maintained, and the weight of the spool can be reduced as much as possible.

According to a second aspect of the present invention, in the spinning reel spool according to the first aspect, the first flange portion is formed integrally with the bobbin trunk. In this case, since the first flange portion and the bobbin trunk portion are integrally formed,
Even if the weight is reduced, the strength of the first flange portion can be maintained high by integral formation.

A spool of a spinning reel according to a third aspect of the present invention is the spool according to the first or second aspect, further comprising a skirt portion formed integrally with a rear end of the bobbin trunk and having a larger diameter than the bobbin trunk. In this case, the weight of the skirt as well as the bobbin trunk can be reduced.

A spinning reel spool according to a fourth aspect of the present invention is the spool according to any one of the first to third aspects, wherein the outer diameter of the first flange portion is equal to the outer diameter of the second flange portion and the outer diameter of the bobbin trunk. Greater than the intermediate value of. In this case,
Since the outer diameter of the inner first flange portion is equal to or larger than the intermediate value of the outer diameter difference of the entire front flange portion, the ratio of the first flange portion to the entire front flange portion is large, and the weight of the entire spool is reduced. It will be easier.

A spinning reel spool according to a fifth aspect of the present invention is the spool according to the fourth aspect, wherein the difference between the inner diameter and the outer diameter of the second flange portion is 3 mm to 25 mm. When the difference between the inner and outer diameters is less than 3 mm, the second flange portion becomes too thin and the strength is insufficient. On the other hand, if it exceeds 25 mm, the ratio of the second flange portion having a large specific gravity to the entire front flange portion increases, so that the entire spool becomes large, and the weight of the entire spool increases.

According to a sixth aspect of the present invention, there is provided a spool for a spinning reel according to any one of the first to fifth aspects, wherein the first flange portion has a contour portion which is substantially straight in a cross section in the spool axial direction. In this case, the outer diameter of the first flange portion can be increased by the substantially straight contour portion, and the spool can be further reduced in weight.

A spinning reel spool according to a seventh aspect of the present invention is the spool according to any one of the first to sixth aspects, wherein the flange fixing member is screwed and fixed to the inner peripheral surface of the bobbin trunk. In this case, since the flange fixing member is screwed and fixed to the bobbin trunk, the second flange portion can be uniformly pressed against the configuration in which the flange fixing member is screwed. In addition, just by turning the flange fixing member, the second
Since the flange portion can be fixed, attachment and detachment of the second flange portion becomes easy.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Overall Configuration] In FIG. 1, a spinning reel adopting an embodiment of the present invention has a reel body 2 that can be mounted on a fishing rod, and a rotatable mounting on the reel body 2 about a left-right axis. A handle assembly 1, a rotor 3, and a spool 4. The rotor 3 guides the fishing line to the spool 4 by rotating in conjunction with the rotation of the handle assembly 1, and is supported at the front of the reel body 2 so as to be rotatable around the front-rear axis. The spool 4 winds the fishing line guided by the rotor 3 around the outer peripheral surface, and is disposed at a front portion of the rotor 3 so as to be reciprocally movable in the front-rear axial direction.

[Structure of Reel Body] As shown in FIG. 3, the reel body 2 forms a main part of the reel body 2 and has an opening 2c in a side portion, and a reel body 2a.
T-shaped rod attachment leg 2b extending diagonally upward and forward from the
And a lid member 2d screwed to the reel body 2a so as to close the opening 2c.

The reel body 2a has a space for mounting a mechanism connected to the opening 2c therein.
As shown in FIG. 2, a rotor drive mechanism 5 for rotating the rotor 3 in conjunction with the rotation of the handle assembly 1 and a spool 4
And an oscillating mechanism 6 for moving the fishing line back and forth to uniformly wind the fishing line.

As shown in FIG. 3, a first flange portion 2e and a cylindrical portion 2f projecting forward from the first flange portion 2e are formed at a front portion of the reel body 2a. The first flange portion 2e has a substantially semicircular shape in which a portion consisting of a chord and an arc is missing, and is formed so as to be continuous with the front end of the opening 2c. The cylindrical portion 2f is a cylindrical portion, and inside thereof, as shown in FIG. 2, a reverse rotation preventing mechanism 5 for prohibiting and canceling the rotation (reverse rotation) of the rotor 3 in the line feeding direction.
0 one-way clutch 51 is non-rotatably mounted. At the rear end of the cylindrical portion 2f, a D-shaped groove portion 2h having a slightly smaller diameter than other portions is formed, and the rear surface of the groove portion 2h is opened by connecting the lid member 2d mounting portion to the opening 2c. Have been.

The lid member 2d has a first flange 2 at its front end.
The second flange portion 2g, which is formed in a substantially semicircular shape formed by a chord and a circular arc at a portion where e is missing, is integrally formed. A waterproof seal 81 made of an elastic body for sealing a gap between the second flange portion 2g and the first flange portion 2e and the rear surface of the cylindrical portion 2f is provided on the contact surface with the rear surface. The waterproof seal 81 is formed in a substantially semicircular arc-shaped band continuously from the front surface to the rear surface of the second flange portion 2g at a position facing the contact surface with the first flange portion 2e and the contact surface with the rear surface of the groove portion 2h. ing. The waterproof seal 81 is mounted in a substantially semicircular mounting groove 81a formed on the front surface of the second flange 2g.

As shown in FIGS. 2 and 3, the rear portion of the reel body 2 is covered with a protective cover 13 made of, for example, metal or synthetic resin. The protective cover 13 is arranged so as to cover the lower portion and the back surface of the reel body 2 from the lower portion of the reel body 2a and the lid member 2d to the back surface and further to the rod mounting leg 2b. The protective cover 13 is detachably fixed to the reel body 2 by screws. Protective cover 13
A spacer 13 made of synthetic resin is provided between the
a is interposed. The spacer 13a is a protective cover 1
It is interposed to fill a gap between the reel body 3 and the reel body 2. By interposing such a spacer 13a, even if the protective cover 13 is made of synthetic resin, it is possible to absorb a change in the gap due to a manufacturing error.

[Structure of Rotor Driving Mechanism] As shown in FIG. 2, the rotor driving mechanism 5 includes a master gear 11 on which the handle assembly 1 is non-rotatably mounted, and a master gear 1
1 and a pinion gear 12 that meshes with the pinion gear 1.

The master gear 11 is a face gear, and is formed integrally with the master gear shaft 10. The master gear shaft 10 is a hollow member made of, for example, stainless steel and has a locking hole 10a formed at the center thereof for locking the handle assembly 1 so as to be unable to rotate. It is rotatably supported by the lid member 2d.

The pinion gear 12, as shown in FIG.
It is a cylindrical member arranged along the front-rear direction and rotatably mounted on the reel body 2a. Pinion gear 12
Is penetrated through the center of the rotor 3, and is fixed to the rotor 3 by a nut 33 at this penetrating portion. The pinion gear 12 is provided at the intermediate portion and the rear end portion in the axial direction with the reel body 2a via bearings 14a and 14b respectively.
It is supported rotatably. A spool shaft 15 passes through the inside of the pinion gear 12. Pinion gear 1
2 meshes with the master gear 11 and also meshes with the oscillating mechanism 6.

[Rotor Configuration] The rotor 3 includes a cylindrical portion 30 fixed to the pinion gear 12 and first and second rotor arms 3 provided on the sides of the cylindrical portion 30 so as to face each other.
1 and 32 and a bail arm 40 for guiding the fishing line to the spool 4. The cylindrical portion 30 and the rotor arms 31, 32 are made of, for example, an aluminum alloy and are integrally formed.

As shown in FIG. 6, a front wall 41 is formed at a front portion of the cylindrical portion 30, and a boss portion 42 protruding rearward is formed at a central portion of the front wall 41. A through hole is formed at the center of the boss portion 42 so as to be non-rotatably engaged with the pinion gear 12, and the front portion 12a of the pinion gear 12 and the spool shaft 15 pass through this through hole.

A nut 33 is screwed into the front portion 12a of the pinion gear 12, and the nut 33 fixes the rotor 3 to the tip of the pinion gear 12 so as not to rotate. A bearing 35 is arranged on the inner peripheral side of the nut 33. The bearing 35 is provided to secure a gap between the spool shaft 15 and the inner surface of the pinion gear 12. Nut 3
A seal member 36 having a lip on the inner peripheral side is mounted on the front surface of the bearing 3 and the bearing 35. The tip of the seal member 36 is in contact with the spool shaft 15. Thereby, infiltration of the liquid from the spool shaft 15 into the inside of the reel body 2 can be prevented.

The above-described reverse rotation prevention mechanism 50 is disposed adjacent to the boss portion 42. As shown in FIG. 2, the reverse rotation prevention mechanism 50 has a one-way clutch 51 and a switching mechanism 52 that switches the one-way clutch 51 between an operating state (reverse rotation prohibited state) and a non-operating state (reverse rotation permitted state). .

The one-way clutch 51 is an inner-wheel idle-type roller-type one-way clutch in which the inner ring 51a is non-rotatably mounted on the pinion gear 12, and the outer ring 51b is non-rotatably mounted on the cylindrical portion 2f. Inner ring 51a and rotor 3
As shown in FIG. 6, a gap member 43 made of a stainless alloy is interposed between the boss portion 42 and the boss portion. Gap member 4
Reference numeral 3 denotes a thin cylindrical member having a cylindrical portion 43a and a disk portion 43b. The cylindrical portion 43a is fitted on the outer periphery of the boss portion 42, and the disk portion 43b is located between the front end surface of the inner ring 51a and the boss portion 42. It is sandwiched between.

Inside the cylindrical portion 2f, a shaft seal 85 with a lip is mounted in front of the one-way clutch 51. The tip lip of the shaft seal 85 is in contact with the outer peripheral surface of the cylindrical portion 43a of the gap member 43. Here, on the inner peripheral side of the gap member 43, since the disk portion 43b is sandwiched between the boss portion 42 and the inner ring 51a, liquid does not easily enter.
Therefore, if the outer peripheral surface of the gap member 43 is sealed, the liquid does not easily enter the inside of the cylindrical portion 2f. Here, the gap member 43 is provided because the shaft seal 85 is directly connected to the boss portion 4.
When the rotor 3 is brought into contact with the pinion gear 12, when the rotor 3 is fixed to the pinion gear 12, if the centering of the rotor 3 is not accurately performed, the sealing performance with the shaft seal 85 deteriorates. Therefore, the sealing performance of the shaft seal 85 can be stabilized by mounting the gap member 43 and performing centering with the shaft seal 85 in advance.

The switching mechanism 52 has a stopper shaft 53 as shown in FIG. The stopper shaft 53 is swingably mounted on the reel body 2a between a non-operation position and an operation position. The stopper shaft 53 is fixed to a stopper knob 53a that penetrates through the reel body 2a and the protective cover 13 and protrudes rearward for operation, a shaft portion 53b to which the stopper knob 53a is fixed, and a tip of the shaft portion 53b. And a cam portion 53c.

As shown in FIG. 3, the stopper knob 53a is detachably fixed to the shaft 53b by a hexagon socket set screw 58. The reason why the stopper knob 53a is made detachable with respect to the shaft portion 53b is that it is necessary to remove the stopper knob 53a when removing the protective cover 13 in order to remove the lid member 2d. By using the hexagon socket set screw 58 to fix the stopper knob 53a, there is no screw head, so that the fishing line can be hardly caught without hiding the screw head with the counterbore.

The cam portion 53c is biased by a toggle spring mechanism 59 in a non-operating position and an operating position.
The tip of the cam portion 53 c is engaged with the one-way clutch 51, and the one-way clutch 5
1 is switched between a non-operation state and an operation state.

[Structure of Oscillating Mechanism] As shown in FIGS. 2 and 4, the oscillating mechanism 6 includes a helical shaft 21 disposed substantially in parallel directly below the spool shaft 15 in parallel with the helical shaft 21. It has a slider 22 that moves in the front-rear direction, and an intermediate gear 23 fixed to the tip of the screw shaft 21. The slider 22 is movably supported by two guide shafts 24 arranged in parallel with the screw shaft 21. The rear end of the spool shaft 15 is fixed to the slider 22 so as not to rotate. The intermediate gear 23 meshes with the pinion gear 12 via a speed reduction mechanism (not shown).

[Structure of Spool] As shown in FIG. 2, the spool 4 is of a deep groove type, and is disposed between the first rotor arm 31 and the second rotor arm 32 of the rotor 3. The spool 4 is connected to a distal end of the spool shaft 15 via a drag mechanism 60. The spool 4 is provided at a front end of the bobbin trunk 4a, and a skirt portion 4b integrally formed at a rear portion of the bobbin trunk 4a. And a front flange portion 4c.

As shown in FIG. 4, the bobbin trunk portion 4a includes a bobbin outer cylindrical portion 4d arranged on the outer periphery, a cylindrical boss portion 4e centrally disposed, an outer cylindrical portion 4d and a boss portion. And a rear wall portion 4f connecting the front wall portion 4e to the rear wall portion 4e. The outer cylinder portion 4d is configured by a peripheral surface parallel to the spool shaft 15. Bobbin trunk 4a
As shown in FIG. 4, is mounted rotatably on the spool shaft 15 by two bearings 56, 57 mounted side by side on the inner peripheral side of the boss 4e.

The bearings 56 and 57 are mounted on the spool shaft 15 via a bearing support 55. Bearing support 55
Is a member mounted on the spool shaft 15 so that it cannot rotate and cannot move in the axial direction. The bearing support 55 is provided on the spool shaft 1.
5 has a cylindrical portion 55a and a flange portion 55b formed at an axially intermediate portion of the cylindrical portion 55a. The cylindrical portion 55a is attached to the spool shaft 15 so as to be non-movable in the axial direction and non-rotatable by a spool pin 54 screwed into the spool shaft 15. At the rear end of the cylindrical portion 55a, a swage fixing portion 55c for restricting the rear bearing 57 from moving rearward in the axial direction is formed. Collar 55
b is arranged in contact with the front side surface of the inner ring of the bearing 57.

The skirt portion 4b is a bottomed cylindrical member that extends radially from the rear end of the bobbin trunk portion 4a and then extends rearward so as to cover the cylindrical portion 30 of the rotor 3. The front flange portion 4c is provided to prevent the fishing line from dropping forward. The front flange 4c is provided with a bobbin trunk 4a.
A first flange portion 45 integrally formed radially outward from a front end of the first flange portion, and a second flange detachably attached to the first flange portion 45 and having a larger specific gravity than the first flange portion 45 and the bobbin trunk 4a. And a portion 46.

The first flange 45 extends radially outward from the front end of the outer cylinder 4d of the bobbin trunk 4a. An outer peripheral portion of the first flange portion 45 has a front end side formed parallel to the spool shaft 15 and a rear end side formed so as to protrude radially outward, and has a parallel surface 45 a formed on the inner periphery of the second flange portion 46. Surface and restricts movement in the radial direction.
Is in contact with the rear end face of the inner peripheral portion of the second flange portion 46 to restrict the rearward movement.

The second flange portion 46 is a member having a higher specific gravity than the first flange portion 45 made of a hard material such as hard metal such as stainless steel or hard ceramic such as zirconia. The second flange portion 46 is fixed to the first flange portion 45 by a flange fixing member 47 screwed into the inner peripheral surface of the bobbin trunk 4a. The outer peripheral edge of the second flange portion 46 has a round shape and a ring shape inclined forward, so that the fishing line is easy to slide forward.

As shown in FIG. 5, the outer diameter D2 of the first flange 45 is an intermediate value ((D1 + D3) / 2) between the outer diameter D1 of the second flange 46 and the outer diameter D3 of the bobbin trunk 4a. Greater than (D2 ≧ (D1 + D3) / 2). The difference (D1-D2) between the inner and outer diameters of the second flange portion 46 is 3 mm to 2 mm.
The range is 5 mm. Outer diameter D2 of first flange 45
Is smaller than the intermediate value ((D1 + D3) / 2) between the outer diameter D1 of the second flange portion 46 and the outer diameter D3 of the bobbin trunk portion 4a, it occupies the entire front flange portion 4c of the lightweight second flange portion 46. The ratio becomes small, and it becomes difficult to reduce the weight.
If the difference between the inner and outer diameters of the second flange portion 46 is less than 3 mm, the second flange portion 46 becomes too thin and lacks in strength. On the other hand, if it exceeds 25 mm, the ratio of the second flange portion 46 having a large specific gravity to the entire front flange portion 4c increases, and the entire spool 4 becomes large in size, resulting in an increase in the weight of the entire spool 4.

As described above, the front flange portion 4c is divided into two portions, and the second flange portion 46 made of a hard material and having a large specific gravity is arranged on the outer peripheral portion which is easily damaged by contact with the fishing line.
Since the first flange portion 45 having a low specific gravity and being integrated with the bobbin trunk portion 4a is disposed in the other inner peripheral portion, the spool 4 can be used while maintaining the wear resistance and durability of the front flange portion 4c. The weight can be reduced as much as possible.

The flange fixing member 47 has a cylindrical mounting portion 47a which is screwed into a female screw portion 4g formed on the inner peripheral surface of the outer cylindrical portion 4d of the bobbin trunk 4a, and a radially outward portion from the distal end of the mounting portion 47a. And a flange portion 47b extending to The flange fixing member 47 is provided at the rear end surface on the outer peripheral side of the flange portion 47b.
The flange 46 is pressed and fixed to the first flange 45.

[Structure of Drag Mechanism] The drag mechanism 60
This mechanism is mounted between the spool 4 and the spool shaft 15 and applies a drag force to the spool 4. As shown in FIG. 4, the drag mechanism 60 includes a knob 61 for manually adjusting the drag force, and a friction unit 62 including a plurality of disks pressed by the knob 61 toward the spool 4.
And

A chamfered portion 15a parallel to each other is formed in front of the bearing support portion 55 of the spool shaft 15, and a male screw portion 15b is formed at the tip of the chamfered portion 15a. The knob 61 includes a first member 63 provided on the chamfered portion 15a so as to be non-rotatable and movable in the axial direction.
3, a second member 64 disposed axially forward of the third member 64 and screwed to the spool shaft 15, and a sound generating mechanism 65 mounted between the first member 63 and the second member 64.

The first member 63 includes a cylindrical portion 63a and a cylindrical portion 6
It is a flanged cylindrical member having a ring-shaped flange 63b having a diameter larger than 3a. An oval-shaped locking hole 66 that is non-rotatably locked to the spool shaft 15 is formed in the inner peripheral portion of the cylindrical portion 63a.
Are formed. The rear end surface of the cylindrical portion 63 a of the first member 63 contacts the friction portion 62. The cylindrical portion 63 of the first member 63
A seal plate 71 for preventing liquid from entering the friction portion 62 from the outside is mounted between a and the inner peripheral surface of the cylindrical portion inside the bobbin trunk 4a. The sealing plate 71
For example, it is a seal member obtained by outsert molding a NBR dish-shaped elastic member around a stainless steel ring member, and has a lip on the outer periphery. The seal plate 71 is biased to the left in FIG. A ring-shaped projection 71c is formed on the left side surface of the seal plate 71 in FIG. The projection 71c abuts a cover member 68 described later to prevent liquid from entering the inner peripheral side.

The second member 64 is provided to face the first member 63 and to be rotatable relative to the first member 63. Second
The member 64 includes a knob main body 67 arranged in front of the first member 63 in the direction of the spool shaft 15, and a cover having a tip fixed to an outer peripheral portion of the knob main body 67 and accommodating the first member 63 therein in a relatively rotatable manner. And a member 68.

The knob body 67 is a disk-shaped member, and has a substantially trapezoidal knob 67a projecting forward on the front surface. Inside the knob body 67, a nut 69 screwed to the male screw portion 15b at the tip of the spool shaft 15 is mounted so as to be non-rotatable and axially movable. A coil spring 70 is arranged in a compressed state around the spool shaft 15 between the second member 64 and the nut 69.

The cover member 68 is a cylindrical member having a step and a bottom, and the cylindrical portion 63a of the first member 63 penetrates the bottom. The projection 71c of the seal plate 71 is in contact with the bottom. The cylindrical portion 68 a of the cover member 68 is screwed to the outer peripheral surface of the knob main body 67.

An O-ring 73 is mounted between the tip of the cylindrical portion 68 a of the cover member 68 and the knob body 67. The O-ring 73 is an elastic member made of, for example, NBR, and is provided to prevent liquid from entering into the inside from the gap between the knob main body 67 of the first member 63 and the second member 64. When the liquid enters through this gap, even if the seal plate 71 is provided, the first member 63 and the spool shaft 15
Water penetrates to the friction portion 62 through the gap between the
2 may be wet and the drag force may fluctuate.

As shown in FIGS. 4 and 6, the friction portion 62 includes a first disc 91 that contacts the first member 63 and a first disc 91.
A second disk 92 non-rotatably locked to the disk;
It has a third disk 94 arranged between the first disk 91 and the second disk 92, and a drag sound generating mechanism 93 mounted on the first disk 91.

The first disk 91 has an inner disk portion 91a and a cylindrical portion 91b extending rearward from the outer peripheral side of the inner disk portion 91a.
And the boss 4 of the bobbin trunk 4a from the rear end of the cylindrical portion 91b.
e, and an outer disk portion 91c extending rearward along the outer periphery of e. The first disc 91 is mounted on the spool shaft 15 so as to be non-rotatable and axially movable by a substantially rectangular locking hole 91d formed at the center of the inner disk portion 91a being locked to the chamfered portion 15a. I have. Further, a drag sound generating mechanism 93 is mounted on the outer disk portion 91c. First disc 91
For example, four arc grooves 91e are formed on the inner peripheral back surface of the outer disk portion 91c at intervals in the circumferential direction.

The second disk 92 has a cylindrical portion 92a and a flange 9
2b is a cylindrical member with a flange. Cylindrical part 92a
Are disposed on the outer peripheral side of the boss 4e.
It is rotatably mounted on. At the tip of the cylindrical portion 92a,
Four projection claws 92c are formed at intervals in the circumferential direction. The projection claw 92c is locked in the circular arc groove 91e. As a result, the second disk 92 becomes the first disk 9
1 and is locked non-rotatably. Therefore, the second disk 9
2 cannot rotate with respect to the spool shaft 15 either.

The third disk 94 is rotatably mounted on the outer peripheral surface of the cylindrical portion 92a of the second disk 92. Third
The disk 94 has a pair of locking claws 94a (only one is shown) protruding radially outward on the outer peripheral side. The locking claw 94a is locked in a locking groove 4h formed in the inner peripheral surface of the outer cylindrical portion 4d of the bobbin trunk 4a. As a result, the third disk 94 is rotatable with respect to the spool shaft 15 and is not rotatable with respect to the spool 4.

The drag sound generating mechanism 93 includes a spring member 93a having a shape obtained by bending and bending a band-shaped metal plate, and an outer cylindrical portion 4d.
And a metal concave-convex member 93b mounted on the inner peripheral surface of the main body. The spring member 93a is locked on the first disk 91 and cannot rotate with respect to the spool shaft 15. At the time of drag operation, that is, when the spool 4 rotates with respect to the spool shaft 15, the bent apex of the spring member 93a repeatedly collides with the metal uneven member 93b to generate sound.

Between the first disk 91 and the third disk 94, between the third disk 94 and the second disk, and
Between the disc 92 and the rear wall 4f of the bobbin trunk 4a,
Drag disk 95 made of graphite or felt,
96 and 97 are respectively mounted.

[Operation and Operation of Reel] In this spinning reel, the bail arm 40 is tilted to the line releasing position at the time of line feeding such as during casting. As a result, the fishing line is sequentially fed out from the leading end side of the spool 4 by its own weight. At this time, since the front flange portion 4c is divided into two portions and the second flange portion 46 made of a hard material and having a large specific gravity is disposed on the outer peripheral portion which is easily damaged by contact with the fishing line, wear resistance of the front flange portion 4c is reduced. Properties and durability can be maintained.

At the time of yarn winding, the bail arm 40 is returned to the yarn winding posture. When the handle assembly 1 is rotated in the line winding direction, the operation is automatically performed by a bale reversing mechanism (not shown). The rotational force of the handle assembly 1 is transmitted to the pinion gear 12 via the master gear shaft 10 and the master gear 11. The rotational force transmitted to the pinion gear 12 is transmitted from the front portion 12a to the rotor 3 and transmitted to the oscillating mechanism 6 by the intermediate gear 23 meshing with the pinion gear 12 via the reduction mechanism. As a result, the rotor 3 rotates in the line winding direction and the spool 4 reciprocates back and forth.

When fishing, waves and the like may hit the reel and cause the reel to get wet. Again, in this case,
Since the seal plate 71 and the O-ring 73 are mounted on the drag mechanism 60, it is difficult for water to enter the friction portion 62 from the front and the rear. For this reason, once the drag force is adjusted, the drag force is less likely to fluctuate due to water wetting.

Further, since the waterproof seal 81 is provided between the lid member 2d and the reel body 2a, it is possible to prevent the liquid from entering the internal mechanism mounting space. For this reason, it becomes difficult for seawater and the like to enter inside, and salt crystals hardly precipitate in gears, guides, bearings, and the like.

[Other Embodiments] (a) In the above embodiment, a front drag type spinning reel was described as an example, but a rear drag type spinning reel, a spinning reel having no drag, or a lever drag type spinning reel. The present invention can be applied to all spinning reel spools.

(B) In the above embodiment, the second flange 46 is fixed to the first flange 4 by the flange fixing member 47.
Although it was fixed to 5, it may be fixed by an appropriate fixing means such as bonding or caulking. Alternatively, the first flange 45 may be made of synthetic resin, and the second flange 46 may be insert-molded and fixed to the first flange 45.

(C) In the above embodiment, the bobbin trunk 4a
Is made of an aluminum alloy, but may be made of another lightweight alloy such as a magnesium alloy, or may be made of a synthetic resin.
Further, a metal thin film may be formed on the surface of a synthetic resin.

(D) In the above embodiment, the first flange 45 is formed integrally with the bobbin trunk 4a, but may be formed separately. In this case, the first flange portion 45 only needs to have a lower specific gravity than the second flange portion 46.

[0063]

According to the present invention, the front flange portion is divided into two portions, and the second flange portion made of a hard material having a large specific gravity is disposed on the outer peripheral portion which is easily damaged by contact with the fishing line, and the other inner peripheral portion is formed. Since the first flange portion having a small specific gravity is disposed in the portion, the spool can be reduced in weight as much as possible while maintaining wear resistance and durability at the front flange portion.

[Brief description of the drawings]

FIG. 1 is a left side view of a spinning reel employing one embodiment of the present invention.

FIG. 2 is a left side sectional view thereof.

FIG. 3 is an exploded perspective view of the reel body.

FIG. 4 is a partial cross-sectional view of a center portion of a spool and a rotor.

FIG. 5 is a partial sectional view showing dimensions of a spool.

FIG. 6 is an exploded perspective view of a friction portion of the drag mechanism.

[Explanation of symbols]

 2 reel body 4 spool 4a bobbin trunk 4b skirt 4c front flange 15 spool shaft 45 first flange 46 second flange 47 flange fixing member

Claims (7)

[Claims] 1. A spool for a bobbin mounted on a tip of a spool shaft that moves back and forth with respect to a reel body of a spinning reel, the bobbin trunk mounted on a tip of the spool shaft, and the bobbin trunk. A first flange provided on the outer peripheral side of the front end of the
A front flange portion having a flange portion and a ring-shaped second flange portion made of a hard material detachably attached to an outer peripheral portion of the first flange portion and having a specific gravity larger than that of the bobbin trunk portion and the first flange portion; A spool for a spinning reel, comprising: a flange fixing member for fixing the second flange portion to the first flange portion. 2. The spinning reel spool according to claim 1, wherein said first flange portion is formed integrally with said bobbin trunk portion. 3. The spinning reel spool according to claim 1, further comprising a skirt portion formed integrally with a rear end of the bobbin trunk and having a larger diameter than the bobbin trunk. 4. The spinning according to claim 1, wherein an outer diameter of the first flange portion is larger than an intermediate value between an outer diameter of the second flange portion and an outer diameter of the bobbin trunk. Reel spool. 5. The spinning reel spool according to claim 4, wherein a difference between an inner diameter and an outer diameter of the second flange portion is 3 mm to 25 mm. 6. The spool according to claim 1, wherein the first flange portion has a substantially straight portion in a cross section in the spool axial direction.
6. The spinning reel spool according to any one of claims 1 to 5. 7. The spinning reel spool according to claim 1, wherein the flange fixing member is screwed and fixed to an inner peripheral surface of the bobbin trunk.