JP2002325530A - Double bearing reel for fishing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double bearing reel for fishing, capable of smoothly rotating a spool in slight change of brake force even when brake force is applied to large spool. SOLUTION: A first shaft 13 is attached to a hollow part 11a of a spool 11 and a second shaft 17 is attached to a hollow part of the first shaft 13. Two brake plates 14 and 15 separable from both sides of the spool 11 are rotatably installed movably to sliding direction on the first shaft. At least either one of the brake plates 14 and 15 is connected through a gear line to a handle of the reel. An elastic body 16 is each fitted into a space between each of brake plates 14 and 15 and the spool 11. A stopper means 18 is installed on either one side of the second shaft 17 and pressing means 21 and 22 capable of pressing the brake plate 15 to the spool by desired pressure is installed on the other side of the second shaft 17. The spool 11 is sandwiched by brake plates 14 and 15 on both sides of the spool 11 to exert braking force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual-bearing fishing reel provided with a drag brake mechanism, and more particularly to a fishing reel suitable for increasing the size.

[0002]

2. Description of the Related Art A drag brake mechanism in which a braking force is generated by frictional contact between a brake plate and a side surface of a spool is employed in most fishing reels. Usually, a friction plate for preventing abrasion is provided on a side surface of the spool.

FIG. 3 is a view showing the structure of a conventional dual-bearing fishing reel B. As shown in FIG. In the figure, a spool 1 for winding a fishing line is supported by a shaft 2 by a ball bearing, and both ends of the shaft 2 are fixed to a frame 3. Between the left end of the shaft 2 in the drawing and the spool 1,
There is a disc spring 4 for suppressing the axial movement of the spool 1,
The other end of the shaft 2 is provided with a compression spring 6 for urging the brake plate 5 to be always separated from the spool 1. A friction plate 1a is attached to a side of the spool 1 facing the brake plate 5.

[0004] A drag lever 7 is fixed to the right end of the shaft 2 in the figure.
The cam 8 is provided at the mounting portion. Drag lever 7
Is rotated about the shaft 2, the cam 8 moves the brake plate 5 in the longitudinal direction of the shaft 2 according to the rotation angle and presses the brake plate 5 against the side surface of the spool 1, and rotates the spool 1 according to the pressing force. Braking force will be applied.

The brake plate 5 is a metal plate, and a cork plate is used as the friction plate 1a on the spool 1 side to secure a frictional force with the spool 1. The dual bearing reel B has a handle 9 whose rotation is transmitted to the brake plate 5 via a gear train 10. Therefore, the turning force of the handle 9 is transmitted to the spool 1 according to the braking force.

The drag brake mechanism of the reel is an extremely important mechanism when catching fish reliably and quickly, and it is not an exaggeration to say that the performance of the drag brake mechanism is the performance of a fishing reel as it is. Therefore, when the pulling force of the fish exceeds the set braking force, the brake plate 5 and the friction plate 1a are immediately slipped, the slip is maintained extremely smoothly, and the fishing line is reliably pulled out. When it becomes, the engagement force by friction is surely exhibited,
Reel manufacturers have been developing a drag brake mechanism that can reliably stop the fishing line from being pulled out and wind it up.

The conventional structure of these drag brake mechanisms is basically the same regardless of the type of fishing reel, and as shown in FIG. The brake force is generated by the frictional force of the contact.

[0008]

However, when pressing the brake plate 5 from one side of the spool 1, there is no problem as long as the pressing force of the spool 1 is uniform, but there is no play between the spool 1 and the ball bearing. Due to the effects of backlash between the ball bearing and the shaft 2 and errors in the flatness of the brake plate 5, a uniform force is not applied to the entire surface of the friction plate 1a of the spool 1, and the load is always imbalanced. . Therefore, there is a problem that the spool 1 is twisted or the braking force fluctuates and the rotation of the spool 1 cannot be performed smoothly. In particular, as the size of the reel increases, the effect is great.

The present invention has been made in view of the above-described circumstances, and provides a dual-bearing reel in which even when a braking force is applied to a large spool, the fluctuation of the braking force is small and the rotation of the spool can be performed smoothly. And

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a dual-bearing fishing reel provided with a drag brake mechanism for generating a braking force by pressing a brake plate against a side surface of a spool. A first hollow shaft rotatably inserted through the spool, and a second shaft rotatably inserted through the hollow portion of the first shaft coaxially with the first shaft. Two brake plates provided at positions that can be brought into contact with and separated from both side surfaces of the spool and rotatable with respect to the first shaft and movable in the thrust direction; and rotating at least one of the brake plates. Driving means for driving, an elastic body for urging each brake plate in a direction away from the side surface of the spool, and pressing one of the brake plates provided on one side of the second shaft against the side surface of the opposed spool. Possible stopper And stage, provided on the other side of the second shaft, is characterized in that and a pressing means which can press with a desired pressing force to the side of the spool which faces the other of said brake plate.

The spool may be provided with a friction plate made of a friction material for automobiles on a side surface of the spool which is in contact with the brake plate, or the stopper means may have a thrust bearing.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a main part of a dual-bearing reel A of the present invention. The spool 11 shown in the figure has a shape in which circular side plates are provided on both sides of a center shaft. Central shaft hollow part 1
1a has enlarged portions at both ends. Ball bearings 12 and 12 are fitted into these enlarged portions, and the hollow first shaft 13
Are rotatably supported. Friction plates 11b, 11b are attached to the outside of the side plate of the spool 11.

Near both ends of the first shaft 13, metal (aluminum or aluminum alloy) brake plates 14, 15 are mounted so as to be rotatable and movable in the axial direction. Then, the brake plates 14 and 15 and the spool 11
Elastic bodies 16, 16 for urging the brake plates 14, 15 in a direction away from the spool 11, are fitted between them. As the elastic body 16, a coned disc spring is used because it is small and can obtain a large force with a small displacement.

A second shaft 17 is rotatably inserted into the hollow portion of the first shaft 13. The second shaft 17 is the first shaft 1
3 and protrudes on both sides of the first shaft 13, and both ends or the vicinity thereof are supported by a frame (not shown) similar to the conventional example. A thrust bearing 18a is inserted into the left end of the second shaft 17 in the drawing, and the right side thereof is
, And the left side surface is in contact with a retaining member 18 b screwed to the second shaft 17. The stopper member 18 is constituted by the retaining member 18b and the thrust bearing 18a. With this configuration, when the second shaft 17 is moved rightward in FIG. 1, the stopper means 18 overcomes the urging force of the elastic body 16 and moves the brake plate 14 rightward in FIG. Can be pressed against the friction plate 11b. The brake plate 14 is integrally connected with a gear 19 that is rotationally driven by an electric motor as driving means (not shown).

By the way, the conventional friction plates 1a, 1a are made of cork material because of their large friction coefficient.
The dual-bearing reel A according to the present invention includes the friction plates 11b, 11b,
It uses the same friction material as brake linings and clutch plates used in automobiles. That is, the friction plates 11b, 1
1b is made of a friction material that can withstand high temperatures using plastic, metal, organic or inorganic fibers, or the like. As such a friction material, for example, "Woven Clutch ACF" (trade name of Chuo Brake Works, Sagami-cho, Koshigaya-shi, Saitama)
And "Woven clutch MB".

The reason for changing the material in this way is as follows. The reel uses lubricating oil such as grease for ball bearings and thrust bearings. In fishing, when the brake plates 14 and 15 are pressed against the friction plates 11b and 11b to keep the brake applied, the temperature rises due to frictional heat. This temperature rise spreads to the surroundings, and the grease is melted and scattered around and adheres to the brake plates 14 and 15 and the friction plates 11b and 11b. If the friction plates 11b, 11b are made of cork, the adhered grease becomes lubricating oil, the friction coefficient is extremely reduced, and the brake is hardly effective. On the other hand, in the case of the above-mentioned brake linings and clutch plates for automobiles, although the friction coefficient decreases due to the adhesion of lubricating oil such as grease,
This is because a sufficient reduction in the braking force is sufficient.

A ratchet gear 20 is attached to the right end of the first shaft 13 in FIG. Ratchet gear 20
Is integrally connected to the brake plate 15 and rotates through a gear train (not shown) when a handle (not shown) of a reel serving as a driving means is turned. The ratchet gear 20 prevents reverse rotation of the spool 11, and is provided with a claw for preventing reverse rotation, not shown.

FIG. 2 shows the ratchet gear 20 and the first shaft 13.
It is a figure which shows the fitting part of. Right end 13a of first shaft 13
The right end 13a of the center hole 20a of the ratchet gear 20 is light, but is a square hole large enough to be inserted without rattling. Therefore, the ratchet gear 20 rotates together with the first shaft 13, but the first shaft 13 can move in the thrust direction.

One end of a drag lever 21 is fixed to the second shaft 17. A cam 22 is provided integrally with the drag lever 21, and when the drag lever 21 rotates around the second shaft 17, the distance between the drag lever 21 and the ratchet gear 20 of the cam 22 changes. The drag lever 21 and the cam 22 constitute a pressing means.

Now that the description of the configuration has been completed, the operation will be described. First, the operator grips the tip of the drag lever 21 and rotates the drag lever 21 about the second shaft 17. This rotation causes the cam 22 to increase the distance between the drag lever 21 and the ratchet gear 20, and the ratchet gear 2
0 is pressed to the left in FIG. Then, the reaction force causes the entire second shaft 17 to move rightward in FIG. 1, so that the brake plate 14 is pressed against the friction plate 11 b on the left side of the spool 11 by the stopper means 18. At the same time, the ratchet gear 20
Moves to the left, and the brake plate 15 integrated with the ratchet gear 20 is moved to the right friction plate 1 of the spool 11.
1b. In short, the spool 11 is pressed against the brake plates 14 and 15 from both sides with the same force,
The rotation from the steering wheel or the electric motor is transmitted by the frictional force between the friction plates 4 and 15 and the friction plates 11b and 11b. At this time, a desired braking force can be set by adjusting the position of the drag lever 21.

According to the present invention, since the frictional force is obtained by pressing the spool 11 from both sides with the brake plates 14 and 15, the spool 11 does not tilt or twist even when a large drag force is set, and is stable. Spool 11 with the frictional force
Can be rotated. In particular, thrust bearing 1
8a, the brake plates 14, 15
The first shaft 13 and the second shaft 17 can lightly rotate relative to each other even when pressed against the friction plate 11b with a strong force.

[0022]

As described above, the present invention relates to a dual-bearing fishing reel provided with a drag brake mechanism for generating a braking force by pressing a brake plate against a side surface of a spool. A hollow first shaft rotatably inserted, a second shaft concentric with the first shaft and rotatably inserted into the hollow portion of the first shaft, and both sides of the spool; Two brake plates, which are provided at positions capable of coming into contact with and separate from each of the surfaces and are rotatable with respect to the first axis and movable in the thrust direction, and a driving means for rotating at least one of the brake plates An elastic body that urges each brake plate in a direction away from the side surface of the opposing spool, and stopper means provided on one side of the second shaft and capable of pressing one of the brake plates against the side surface of the opposing spool. , The second axis A pressing means provided on the other side and capable of pressing the other side of the brake plate against the side surface of the spool with a desired pressing force. Can be given, and the spool can be prevented from being twisted or tilted by the braking force, and can be smoothly rotated.

If a friction plate made of a friction material for an automobile is provided on the side surface of the spool that comes into contact with the brake plate, the optimum friction can be obtained by appropriately combining the materials of the brake plate and the friction plate. Coefficients can be selected.

If the stopper means has a thrust bearing, even if a large frictional force (braking force) is applied to the spool, the relative rotation between the first shaft and the second shaft is lightly rotated without hindrance. Can be done.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a structure of a dual bearing reel for fishing of the present invention.

FIG. 2 is a view showing a fitting portion between the ratchet gear of FIG. 1 and a first shaft.

FIG. 3 is a sectional view showing the structure of a conventional dual-bearing fishing reel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Spool 11a Hollow part 11b Friction plate 13 1st axis 14, 15 Brake plate 16 Elastic body 17 2nd axis 18 Stopper means 18a Thrust bearing 21,22 Pressing means

Claims (3)

[Claims] A fishing dual-bearing reel provided with a drag brake mechanism that generates a braking force by pressing a brake plate against a side surface of a spool, wherein the hollow is rotatably inserted through the spool (11). A first shaft (13), and a second shaft (11a) concentric with the first shaft and rotatably inserted through the hollow portion (11a) of the first shaft.
Two brake plates (1) which are provided at positions that can be brought into contact with and separated from the shaft (17) and both side surfaces of the spool and are rotatable with respect to the first shaft and movable in the thrust direction.
A driving means for rotating at least one of the brake plates, an elastic body (16) for urging each of the brake plates (14, 15) in a direction away from a side surface of the opposed spool, Stopper means (18) provided on one side of the second shaft (17) and capable of pressing one side (14) of the brake plate against the side surface of the spool facing the second shaft (17);
7) and provided on the other side of the brake plate.
And (5) a pressing means (21, 22) capable of pressing the side surface of the spool facing the same with a desired pressing force. 2. The vehicle according to claim 1, wherein a friction plate (11b) made of a friction material for automobiles is provided on a side surface of the spool (11) in contact with the brake plate (14, 15). Double bearing reel for fishing. 3. The dual bearing reel for fishing according to claim 1, wherein said stopper means (18) has a thrust bearing (18a).