JP2835583B2 - Double bearing type reel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-bearing type reel mainly used for fishing large fish such as swordfish.

[0002]

2. Description of the Related Art A dual-bearing type reel is designed such that when a certain amount of tension acts on a fishing line wound on a spool, the spool idles. This is to prevent the fishing line from breaking when it is strongly pulled by the fish. To achieve this, the dual-bearing reel incorporates a drag mechanism. The drag mechanism is also a clutch mechanism that rotates the spool when a rotation torque greater than a certain value acts on the spool.

[0003] The most common structure of a drag mechanism for a dual-bearing type reel is one in which a friction ring is fixed to one surface of a spool or a disk fixed to a rotating shaft of the spool. In the dual-bearing type reel having this structure, when the spool is moved in the axial direction, the friction ring is pressed by the brake shoe, and the rotational torque for rotating the spool is largely adjusted.

Further, as described in Japanese Utility Model Publication No. Sho 62-38536, a dual-bearing type reel incorporating a drag mechanism using an electromagnetic clutch has been developed. The dual-bearing type reel described in this publication, as shown in FIG.
It has a conductive disk 3 that rotates with the spool 1. The magnet 4 is arranged close to the disk 3. When the spool 1 is rotated, the drag mechanism of this structure
An eddy current flows through the magnetic field, and the eddy current generates a magnetic field. The magnetic field generated in the disk 3 acts in a direction to increase the rotational torque of the disk 3, that is, acts as a brake. The drag mechanism of this structure, when the rotation speed of the spool 1 becomes high,
The eddy current also increases, and there is a characteristic that the braking action becomes stronger.

[0005]

In both the drag mechanism having a structure in which the friction ring is pressed against the brake shoe and the drag mechanism of the electromagnetic clutch type, the tension acting on the fishing line increases as the fishing line wound on the spool decreases. There is a disadvantage that it changes. This is because even if the drag mechanism rotates the spool with a constant torque, the smaller the fishing line wound on the spool, the smaller the winding diameter, and the smaller the rotational torque at which the fishing line tries to rotate the spool. For example, if the diameter of the fishing line wound on the spool is halved, the spool will not rotate with the same rotational torque unless the tension of the fishing line is doubled. This is because the rotation torque at which the fishing line rotates the spool is proportional to the product of the winding diameter of the fishing line and the tension of the fishing line.

For this reason, the dual-bearing type reel has a characteristic that the tension acting on the fishing line increases as the fishing line of the spool is extended and the winding diameter of the fishing line decreases. This means that the fishing line is extended longer and becomes easier to cut as the spool diameter decreases. Take out the fishing line for a long time,
Adjust the drag mechanism to make the spool easier to rotate, so that the line is wound longer on the spool. There is a drawback that it is pulled out. Adjusting the drag mechanism so that the fishing line does not pull out too long, the spool diameter decreases, and when the spool diameter decreases, the tension on the fishing line increases and the fishing line breaks. is there.

[0007] Such a problem occurs because the dual-bearing type reel rotates the spool and winds the fishing line therearound. Such a disadvantage does not occur in a reel such as a spinning reel having a structure in which a spool is fixed and a fishing line is wound around a fishing line roll rotating around the spool. This is because the tension acting on the fishing line is determined by the turning radius of the fishing line roll. The turning radius of the fishing line roll is independent of the winding diameter of the fishing line wound on the spool,
Always constant. For this reason, the spinning reel can constantly adjust the tension of the fishing line regardless of the winding diameter of the spool. However, the spinning reel has a disadvantage that it cannot be used for fishing of large fish such as swordfish. that is,
This is because an extremely strong tension acts on the fishing line, so that the fishing line cannot be wound around the spool with the fishing line roll without difficulty.

The dual bearing type reel can be used for fishing in which a fishing line is applied with a strong tension because the fishing line is wound directly around the spool by rotating the spool. However, since the double-bearing type reel is used for fishing large fish such as swordfish, the fishing line is used in an extremely extreme state.
In other words, the fishing line is used in a state where it is extremely easy to cut. Furthermore, in order to sufficiently weaken large fish, the spool of the dual-bearing type reel is wound with an extremely long fishing line of several hundred meters. For this reason, the winding diameter of the fishing line wound on the spool changes greatly. The double-bearing type reel has a very severe condition in which the fishing line is extremely easily cut by being pulled by a large fish. In trolling, the actual rate at which fish caught on a bait and caught on a fishing hook can be attracted to a boat and collected is as low as several percent or less. The most important characteristic required for a dual-bearing reel is how to recover the fish caught on the hook on the ship.

The present invention has been developed to solve such difficult problems of the conventional dual-bearing type reel, and an important object of the present invention is to provide an extremely simple structure for winding on a spool. An object of the present invention is to provide a dual-bearing type reel capable of effectively attracting and collecting a large fish by reducing fluctuations in the tension of the fishing line caused by a change in the winding diameter of the fishing line.

[0010]

The dual-bearing type reel according to the present invention has the following arrangement in order to achieve the above object.
Double-bearing type reel includes a spool 1 for winding the fishing line, and a drag mechanism 5 for rotating the spool 1 slips to act a predetermined tension to the <br/> wound on the spool 1 fishing line.

[0011] In addition, the drag mechanism 5 is all of the configuration of the following
Have (A) The drag mechanism 5 axially presses the inner shaft 6 and the outer ring 7, the roller 8 arranged to be able to roll between the inner shaft 6 and the outer ring 7, and the inner shaft 6 and the outer ring 7. And a torque adjusting member 9 that performs the adjustment. (B) The outer ring 7 and the inner shaft 6 have the rolling surface 10 of the roller 8 as a tapered surface, and the roller 8 is disposed between the tapered rolling surface 10 so as to be able to roll freely. (C) The roller 8 is disposed on the rolling surface 10 so as to be inclined with respect to the rotation axis of the outer ring 7 and the inner shaft 6. (D) The torque adjusting member 9 has a pressing portion for pressing the outer ring 7 and the inner shaft 6 relatively in the axial direction, and the torque adjusting member 9 presses the outer ring 7 and the inner shaft 6 relatively in the axial direction. As a result, the slip torque between the outer ring 7 and the inner shaft 6 is adjusted, and when a certain amount of tension acts on the fishing line wound on the spool 1, the outer ring 7 and the inner shaft 6 slip, and the spool 1 rotates. It is configured such that the wound fishing line is paid out.

Further, a dual-bearing type lead according to claim 1 of the present invention.
To reduce the tension fluctuation of the fishing line,
Of the heat generated by the drag mechanism 5 from which the fishing line is paid out from the rule 1
In this state, the thermal expansion of the outer ring 7 is smaller than that of the inner shaft 6.
In other words, the thermal expansion of the inner shaft 6 is
7 is larger than the thermal expansion of
Is controlled to be almost uniform.

The deformation of the outer ring 7 and the inner shaft 6 due to thermal expansion is different.
In order to achieve this, it is described in claim 2 or claim 3.
As described above, the outer ring 7 and the inner shaft 6 are made of metals having different coefficients of thermal expansion.
Or heat radiation fins 32 are provided on the outer ring 7 for heat radiation.
The outer ring 7 is cooled by the fins 32 more than the inner shaft 6.

Further, a dual bearing type lead according to claim 4 of the present invention.
The spool connects the spool 1 and the drag mechanism 5 with little heat conduction.
It is connected so that it does not rotate by contacting locally.
Preferably, the spool 1 and the drag mechanism 5 are provided.
Steel balls 1 arranged in each groove, as described in
8.

Further, a double bearing type according to claim 6 of the present invention.
In the reel, a roller 8 is disposed on the drag mechanism 5.
Seals the gap between the outer ring 7 and the rolling surface 10 of the inner shaft 6 from outside.
The seal ring 23 is provided, and the outer ring is
Prevents foreign matter from entering between 7 and rolling surface 10 of inner shaft 6
doing.

[0016]

In order to make the operation of the dual-bearing type reel of the present invention easy to understand, the operation of the dual-bearing type reel shown in FIG. 2 showing a preferred embodiment of the present invention will be described. The dual-bearing type reel shown in this figure adjusts the rotational torque of the spool 1 by the following operation.
The dual-bearing type reel shown in this figure has an inner shaft 6 of a drag mechanism 5 on a rotating shaft 12 rotated by a handle 11 and an outer ring 7.
Is connected to the spool 1. As indicated by the arrow, the torque adjusting member 9 presses the outer ring 7 in the axial direction, and presses the outer ring 7 in the axial direction relatively to the inner shaft 6. When the outer ring 7 is pressed in the direction indicated by the arrow, the inner shaft 6 and the outer ring 7 are pressed in a direction in which the distance between the rolling surfaces 10 is reduced. When the rolling surface 10 is pressed in the narrowing direction, the roller 8 strongly presses the rolling surface 10. The roller 8 rolls on the rolling surface 10 of the inner shaft 6 and the outer ring 7, and slides a part of the surface along the rolling surface 10. A part of the surface of the roller 8 slides on the rolling surface 1 of the inner shaft 6 and the outer ring 7.
This is because 0 is tapered and the center axis of the roller 8 is inclined with respect to the center axes of the inner shaft 6 and the outer ring 7.

The roller 8 whose part of the surface moves while rubbing the surface of the rolling surface 10 does not roll lightly. In particular, roller 8
The more strongly the roller 8 is pressed against the rolling surface 10, the more the roller 8 cannot smoothly rotate the rolling surface 10. As the roller 8 becomes harder to rotate, the outer ring 7 tries to rotate together with the inner shaft 6 and requires a larger rotation torque to rotate the outer ring 7. The rotating shaft 12 rotated by the handle 11 can be normally rotated only in the direction of winding the fishing line by the one-way clutch 13. In this state, spool 1
When strong tension acts on the fishing line wound on the shaft, the outer ring 7 and the inner shaft 6 of the drag mechanism 5 slip, but the rotation shaft 1
2 is not reversed. Were it to Tsu and do not slip relative to the inner shaft 6 outer ring 7, the spool 1 is not rotated. In other words, the reverse rotation torque of the spool 1 can be adjusted by adjusting the rotation torque at which the outer ring 7 slips on the inner shaft 6.

The reverse rotation torque of the spool 1 determines the maximum tension of the fishing line. When the drag mechanism 5 is adjusted so that the spool 1 can be reversely rotated with a small torque, the spool 1 is reversely rotated so that strong tension does not act on the fishing line. When the spool 1 is going to be reversed by the tension of the fishing line,
This is because the spool 1 easily reverses. Conversely, when the reverse rotation torque of the spool 1 is largely adjusted by the drag mechanism 5, the spool 1 is reversely rotated only when a large tension acts on the fishing line, so that the maximum tension of the fishing line can be strongly adjusted.

The drag mechanism 5 of the dual-bearing type reel according to the present invention.
Adjusts the reverse rotation torque of the spool 1 by a force pressing the roller 8 against the rolling surface 10. That is, the force with which the roller 8 presses the rolling surface 10 is a function of the reverse torque. The reverse torque of the spool 1 can be made constant by making the force of the roller 8 pressing the rolling surface 10 constant. When the reverse torque of the spool 1 is fixed, as described above,
The maximum tension of the fishing line changes depending on the diameter of the fishing line wound on the line. This is because the torque by which the fishing line tries to reverse the spool 1 is proportional to the product of the tension and the winding diameter of the fishing line. As the winding diameter of the fishing line decreases, the maximum tension of the fishing line increases.

FIG. 3 shows a state in which the reverse rotation torque of the conventional dual-bearing type reel having a friction ring fixed to one surface of the spool 1 increases as the winding diameter of the spool 1 decreases. This drawing is a graph showing the change in tension acting on the fishing line by drawing the fishing line from the spool 1 at a constant speed. The horizontal axis in this figure is the time axis. As the time elapses, when the fishing line is pulled out longer and the winding diameter becomes smaller, the tension of the fishing line sharply increases.

Although the dual-bearing type reel of the present invention has a simple structure,
The extremely sophisticated technique of effectively utilizing the thermal expansion of the outer race 7 and the inner shaft 6 ensures that the fluctuation of the maximum tension of the fishing line with respect to the change of the winding diameter is reduced. A strong tension acts on the fishing line, and the fishing line is pulled out of the spool 1,
As the winding diameter becomes smaller, the outer ring 7 and the inner shaft 6 are heated. This is because the roller 8 is pressed against the rolling surface 10 and rolls while a part of the surface is rubbed against the rolling surface 10 in this state. When the fishing line is pulled out and the outer race 7 and the inner shaft 6 are heated, both the outer race 7 and the inner shaft 6 thermally expand. Since the outer ring 7 has a larger diameter than the inner shaft 6, the inner diameter of the rolling surface 10 causes the outer ring 7 to thermally expand more than the inner shaft 6. Therefore, as the outer ring 7 and the inner shaft 6 are heated, the gap between the rolling surfaces 10 becomes wider, the force with which the rollers 8 press the rolling surfaces 10 becomes weaker, and the reverse rotation torque of the spool 1 becomes weaker. In other words, as the fishing line is pulled out longer, the outer ring 7 and the inner shaft 6 are heated, and the reverse rotation torque of the spool 1 is adjusted to be weak. For this reason, when the fishing line is drawn out long and the winding diameter of the spool 1 becomes small, the reverse rotation torque of the spool 1 is adjusted to be weak, and it is possible to effectively prevent the maximum tension of the fishing line from suddenly increasing.

FIG. 4 is a graph showing a change in the tension of the fishing line of the dual-bearing type reel according to the present invention. As is apparent from this figure, the dual-bearing type reel of the present invention clearly shows that the maximum tension of the fishing line does not change abruptly even when the fishing line is pulled out long and the winding diameter is reduced.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are examples of a dual-bearing type reel for embodying the technical idea of the present invention, and the present invention does not specify the dual-bearing type reel as follows.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims", "actions", and "actions". In the column of "Means for solving the problem". However, the members shown in the claims are
It is by no means specific to the members of the embodiment.

The dual-bearing type reel shown in FIGS. 2 and 5 has a cylindrical main body frame 14 mounted on a fishing rod, and a spool 1 rotatably mounted inside the main body frame 14 for winding a fishing line. When a certain tension acts on the driving means for rotating the spool 1 and the fishing line wound on the spool 1,
A drag mechanism 5 for rotating the spool 1. The driving means and the drag mechanism 5 are incorporated in a side cover 17 fixed to a side surface of the main body frame 14. In FIG. 2, the right side cover 17 has a built-in driving means, and the left side cover 17 has a built-in drag mechanism 5.

In the dual-bearing type reel shown in FIG. 2, the rotating shaft 12 is rotated by the handle 11 of the driving means, and the tip of the rotating shaft 12 is connected to the spool 1 via the drag mechanism 5.
The driving means includes a one-way clutch 13. On the other hand, the clutch 13 rotates the rotating shaft 12 only in a direction in which the fishing line is wound around the spool 1. The dual-bearing type reel with this structure
The rotation shaft 12 is rotated by the handle 11, and the rotation of the rotation shaft 12 is transmitted to the spool 1 via the drag mechanism 5. Therefore, the spool 1 can be rotated by rotating the handle 11. The drag mechanism 5 is a mechanism that, when a certain amount of tension acts on the fishing line, slips and reverses the spool 1 to feed out the fishing line.

As shown in FIG. 6, the main body frame 14 in which the spool 1 is built is connected to a ring-shaped side frame 15 located on both sides of the spool 1 and the side frames 15 on both sides to form an outer periphery of the spool 1. Multiple connecting rods 1 to cover
6. The main body frame 14 including the side frame 15 and the plurality of connecting rods 16 is integrally formed of a metal such as aluminum, titanium, and stainless steel.
However, the side frame 15 on both sides and the plurality of connecting rods 16 are manufactured as separate parts, and these parts are connected by a method such as welding, bonding, or screwing to manufacture the main body frame 14. Can also.

The body frame 14 shown in FIG. 6 has side frames 15 on both sides connected by four connecting rods 16. Figure
In FIG. 6 , the connecting rod 16 at the bottom has a wider width than the other three connecting rods 16 because a fixing member for connecting the main frame 14 to the fishing rod is mounted on the connecting rod 16. Side frame 1
As shown in FIG. 6 , all four connecting rods 16 connecting the 5 are bulged outward at the central portion of the spool 1, and
The inner diameter at the center is larger than the inner diameter at both sides.

Side frame 1 processed into a disk shape
5 is detachably connected to a side cover 17 containing a driving means and a drag mechanism 5 by a detachable method, a screwing method, or the like.

The dual bearing type reel shown in FIG.
The drive means is built in the side cover 17 connected to the right side of the vehicle, and the drag mechanism 5 is built in the side cover 17 connected to the left side. The driving means incorporated in the right side cover 17 incorporates the handle 11, a gear for transmitting the rotation of the handle 11 to the rotating shaft 12, and a one-way clutch for rotating the handle 11 only in the fishing line winding direction. I have. The dual bearing type reel shown in FIG.
The clutch 13 can be connected to any position where the rotating shaft can be rotated only in the fishing line winding direction.

The drag mechanism 5 is incorporated in a side cover 17 connected to the left side of the main body frame 14. FIG. 7 is a cross-sectional view of a part incorporating the drag mechanism 5, and FIG.
8 is shown in FIG. The drag mechanism 5 shown in these figures is provided so as to be able to roll between the inner shaft 6 connected to the rotating shaft 12, the outer ring 7 connected to the spool 1, and the inner shaft 6 and the outer ring 7. And a torque adjusting member 9 for pressing the outer ring 7 in the axial direction.

The inner shaft 6 and the outer ring 7 are arranged on the rolling surface 1 of the roller 8.
0 is a tapered surface, and a roller 8 is disposed between the tapered rolling surfaces 10 so as to be able to roll freely. Rolling surface 1
The 0 may make the axial surface perfectly straight, but may also be slightly curved. In order to dispose the roller 8 at a predetermined position on the rolling surface 10, a retainer (not shown) is disposed on the rolling surface 10 like a normal bearing. The retainer is made of metal or plastic.
Further, a slit-shaped gap is provided between the rolling surface 10 of the outer ring 7 and formed into a cylindrical shape, and the roller 8 is rotatably disposed. Further, the roller 8 is disposed on the rolling surface 10 in such a manner that the central axis is inclined with respect to the central axes of the outer ring 7 and the inner shaft 6.

FIG. 9 shows a state in which the roller 8 is disposed on the rolling surface 10 and the inner shaft 6 and the outer ring 7 are slipped. In this figure, when the inner shaft 6 and the outer ring 7 are pressed in the direction shown by the arrow A to fix the inner shaft 6 and rotate the outer ring 7 in the direction shown by the arrow B, the inner shaft 6 Rotate in the direction indicated by arrow C. When the inner shaft 6 and the outer ring 7 are rotated in this direction, the rollers 8 bite below the thinning rolling surface 10, and a large rotation torque is required to rotate the outer ring 7. The stronger the inner shaft 6 and the outer ring 7 are pressed in the direction indicated by the arrow A, the greater the rotational torque required to rotate the outer ring 7. Therefore, as the force pressing the outer ring 7 in the direction indicated by the arrow is increased, the rotational torque of the outer ring 7 is increased. When the outer ring 7 and the inner shaft 6 are rotated in the directions opposite to the directions shown by arrows B and C in FIG. it can. The drag mechanism 5 of the dual bearing reel according to the present invention brakes and rotates the outer race 7 when a predetermined reverse rotation torque acts on the spool 1. ,
It is designed to be in the direction shown by arrow B in FIG.

The rotational torque for rotating the outer race 7 in the direction shown by the arrow B while fixing the inner shaft 6 is such that the taper angle α of the rolling surface 10 and the center axis of the roller 8 in FIG.
And the torsion angle β inclined with respect to the center axis of the outer ring 7. If the taper angle α and the twist angle β are too large or too small, the biting of the roller 8 is weakened, and the rotational torque is reduced. Therefore, the taper angle α and the torsion angle β are adjusted to optimal values in consideration of the required rotational torque. For example, the taper angle α is set to about 15 degrees, and the twist angle β is set to about 20 degrees.

In the drag mechanism 5 shown in FIG. 8, the inner shaft 6 is formed integrally with the rotary shaft 12, and a connecting ring 19 is connected to the outer ring 7 via a steel ball 18 so as not to rotate. The connection ring 19 is disposed so as to be rotatable outside the rotation shaft 12 connected to the inner shaft 6 via the bearing 20. In order to rotate the connecting ring 19 together with the outer ring 7, the connecting ring 19 is inserted into the connecting cylinder 21 of the outer ring 7, and the connecting groove is formed in the outer peripheral surface of the connecting ring 19 and the inner peripheral surface of the connecting cylinder 21 in the axial direction. The steel ball 18 is provided in the connection groove 22. V that prevents grease supplied to the roller 8 from leaking between the connecting ring 19 and the connecting cylinder 21 of the outer ring 7
A seal ring 23 as a packing is built in. As the seal ring 23, an oil seal or an O-ring can be used instead of the V-packing. Further, in FIG.
A seal ring 23 for preventing grease leakage is also provided between the inner surface at the left end of the rotating shaft 12 and the outer peripheral surface of the rotating shaft 12.
The right end of the connection ring 19 is connected to the inner surface of the spool 1 via a spline 24 so as not to rotate.

As shown in FIGS. 7 and 8 , the torque adjusting member 9 for pressing the outer ring 7 in the axial direction includes a thrust bearing 2 as shown in FIGS.
Press ring 26 that presses outer ring 7 in the axial direction through
And a ring spring 2 for pressing the side surface of the pressing ring 26.
7, a nut member 28 connected to the side cover 17 so that it can move in the axial direction but does not rotate, and is screwed into a female screw hole provided at the center of the nut member 28.
A screw member 29 which is, and an operation member 30 for rotating the screw member 29.

The nut member 28 has a convex portion on the outer periphery. The convex portion is guided in a guide groove extending in the axial direction on the inner surface of the side cover 17, and is guided in the axial direction through the convex portion and the guide groove. It is connected to the side cover 17 so that it can move.

The screw member 29 has, at the center, a through hole through which the rotating shaft 12 fixed to the inner shaft 6 is rotatably penetrated, and a male screw to be screwed into the female screw of the nut member 28 is provided outside the through hole. ing. The screw member 29 is a bearing 31
Are connected so as to be rotatable with respect to the rotation shaft 12. An operation arm, which is an operation member 30, is fixed to the left end of the screw member 29 by screwing.

The torque adjusting member 9 having this structure adjusts the axial pressing force of the outer race 7 by performing the following operation. By rotating the operation arm, the screw member 29 connected thereto is rotated. When the screw member 29 is rotated, the nut member 28 screwed into the screw member 29 moves in the axial direction. When the nut member 28 moves in the axial direction, the force with which the ring spring 27 presses the pressing ring 26 changes. 8, when the nut member 28 moves to the right, the ring spring 27 presses the pressing ring 26 more strongly. When the pressing ring 26 is strongly pressed, the outer ring 7 is strongly pressed in the direction indicated by the arrow D. When the pressing force of the outer ring 7 in the direction of arrow D increases, the inner shaft 6
, The rotational torque of the outer ring 7 increases. In other words, the reverse rotation torque at which the fishing line rotates the spool 1 in the reverse direction is greatly adjusted.

The drag mechanism 5 shown in FIG. 8 can freely adjust the torque at which the spool 1 is reversed by the fishing line by moving the ring spring 27 by the operation member 30 in the axial direction as described above.

The drag mechanism 5 shown in FIG. 8 has the inner shaft 6 connected to the rotating shaft 12 and the outer ring 7 connected to the spool 1. In the dual bearing reel of the present invention, the inner shaft is connected to the spool and the outer ring is connected to the spool. Needless to say, it can be connected to a rotating shaft.

The dual-bearing type reel of the present invention effectively utilizes the thermal expansion of the outer race 7 and the inner shaft 6 to prevent fluctuation of the maximum tension acting on the fishing line. When the same material metal is used for the outer race 7 and the inner shaft 6, the dual-bearing type reel according to the present invention, as shown in FIG. As the winding diameter becomes smaller, the torque for reversely rotating the spool due to the tension of the fishing line tends to gradually decrease. This means that the correction of the reverse rotation torque due to the thermal expansion of the outer ring 7 and the inner shaft 6 is sufficiently effective. That is, the dual-bearing type reel of the present invention can prevent a sudden change in the reverse rotation torque by utilizing the thermal expansion of the outer ring 7 and the inner shaft 6, but the reverse rotation torque is slightly increased when the feeding amount of the fishing line is increased. Is small.

With this characteristic, it is possible to forcibly cool the outer race 7 and further select the materials of the outer race 7 and the inner shaft 6 to adjust them to optimum values. In order to reduce the thermal expansion of the outer ring 7, as shown in FIG. 8, a radiation fin 32 is provided on the outer ring 7, and the outer ring 7 is forcibly cooled. The radiating fins 32 effectively radiate heat generated when the spool 1 is reversed by the fishing line from the outer ring 7. The drag mechanism 5 shown in FIG.
Radiation fins 32 are provided by cutting grooves on the outer periphery of the outer ring 7. The heat radiating fins 32 can be processed into a member separate from the outer ring 7 and fixed to the outer periphery of the outer ring 7. The drag mechanism 5 that cools the outer ring 7 with the radiating fins 32 adjusts the thermal expansion of the outer ring 7 with the radiating fins 32 to be small. Reducing the thermal expansion of the outer race 7 can prevent the tension of the fishing line from unnecessarily lowering when the fishing line is fed from the spool 1. That is, in FIG. 10, the decrease on the right side of the torque curve can be reduced.

Further, by using a metal having a smaller thermal expansion than the inner shaft 6 for the outer ring 7, a decrease on the right side of the torque curve in FIG. 10 can be further reduced. When the thermal expansion of the outer race 7 becomes smaller than that of the inner race 6, the outer race 7 and the inner race 6 are heated in the same manner as when the outer race 7 is forcibly cooled.
This is because the increase in the gap between the rolling surfaces 10 can be reduced. FIG. 4 shows a case where SUS440C is used for the inner shaft 6 and the outer ring 7 is used.
5 shows a torque curve of a dual-bearing type reel in which Elmax (ELMAX) manufactured by Wooddeholm Co., Ltd., whose thermal expansion is smaller than that of the inner shaft 6, is used, and further, the outer ring 7 is provided with a radiation fin 32. As shown in this figure, by making the thermal expansion of the outer ring 7 smaller than that of the inner shaft 6 and forcibly cooling the outer ring 7, the tension curve of the spool 1 can be made uniform until it is close to ideal. is there.

Therefore, the dual-bearing type reel of the present invention
Cooled by providing radiating fins 32 on the outer ring 7, made et al, select the material of the inner shaft 6 and the outer ring 7, the inner shaft thermal expansion of the outer ring 7 6
There is a feature that ideal characteristics can be obtained by making the size smaller. The dual-bearing type reel of the present invention does not specify the area of the radiation fins 32 provided on the outer ring 7 and the materials of the outer ring 7 and the inner shaft 6, but uses the area of the radiation fins 32 and the outer ring 7 and the inner shaft 6. The coefficient of thermal expansion of the material is designed such that the tension curve is flat.

[0046]

The dual-bearing type reel according to the present invention has an extremely simple structure and realizes the following excellent features which are extremely important as this kind of reel. That is, in the dual-bearing type reel of the present invention, the reverse rotation torque of the spool is adjusted by the force pressing the roller against the rolling surface. When the force of the roller pressing the rolling surface is constant, the reverse rotation torque of the spool can be constant.
However, the dual-bearing type reel of the present invention does not use the drag mechanism to keep the reverse rotation torque of the spool constant, but reduces the reverse rotation torque of the spool as the fishing line is pulled out from the spool. This is because even if the fishing line is paid out from the spool, the maximum tension of the fishing line is not increased. The dual-bearing type reel of the present invention does not require a specially complicated mechanism to reduce the reverse rotation torque of the spool, and utilizes the thermal expansion of the outer ring and the inner shaft of the drag mechanism to change the fishing line with respect to the change in the winding diameter. The fluctuation of the maximum tension is surely reduced. The strong tension acts on the fishing line, and the fishing line is pulled out from the spool, and as the winding diameter decreases, the outer ring and the inner shaft are heated and thermally expanded. Since the outer ring has a larger diameter than the inner shaft, the inner diameter of the rolling surface is larger than that of the inner ring of the outer ring. The force pressing the moving surface is weakened, and the reverse rotation torque of the spool is weakened. Therefore, as the fishing line is pulled out longer, the reverse rotation torque of the spool is adjusted to be weaker. For this reason, when the fishing line is drawn out long and the winding diameter of the spool becomes small, the reverse rotation torque of the spool becomes weak, and it can be effectively prevented that the maximum tension of the fishing line suddenly increases. Therefore, the dual-bearing type reel of the present invention can reduce the maximum tension fluctuation of the fishing line with an extremely simple structure,
There is an extremely excellent feature that the fishing line can be efficiently drawn and reliably collected so that the fishing line is not cut, and the fishing line is not pulled out more than necessary for a large fish.

[Brief description of the drawings]

FIG. 1 is a sectional view of a conventional dual-bearing type reel.

FIG. 2 is a schematic sectional view of a dual-bearing type reel according to an embodiment of the present invention.

FIG. 3 is a graph showing a state in which the tension acting on the fishing line changes when the fishing line is unwound from a spool in a conventional dual-bearing type reel.

FIG. 4 is a graph showing a state in which the tension acting on the fishing line changes when the fishing line is paid out from the spool in the dual-bearing type reel according to the embodiment of the present invention.

FIG. 5 is a front view showing a dual-bearing type reel according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a main body frame of the dual-bearing type reel shown in FIG. 5;

FIG. 7 is a cross-sectional view of the dual-bearing type reel shown in FIG.

8 is a sectional view of a drag mechanism built in the dual-bearing type reel shown in FIG. 7;

FIG. 9 is a sectional view showing the operation principle of the drag mechanism.

FIG. 10 is a graph showing a state in which the tension acting on the fishing line changes when the fishing line is unwound from the spool in the dual-bearing type reel according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Spool 3 ... Disk 4 ... Magnet 5 ... Drag mechanism 6 ... Inner shaft 7 ... Outer ring 8 ... Roller 9 ... Torque adjustment member 10 ... Rolling surface 11 ... Handle 12 ... Rotating shaft 13 ... One clutch 14 ... Body frame 15 ... Side frame 16 Connection rod 17 Side cover 18 Steel ball 19 Connection ring 20 Bearing 21 Connection tube 22 Connection groove 23 Seal ring 24 Spline 25 Thrust bearing 26 Press ring 27 Ring spring 28 Nut Member 29: Screw member 30: Operation member 31: Bearing 32: Radiation fin

Claims (6)

(57) [Claims] And 1. A winding the fishing line spool (1), scan flop <br/> Lumpur (1) a predetermined tension to the wound fishing line is applied when the slip to drag mechanism for rotating the spool (1) (5) and have a, drag mechanism (5), the inner shaft (6) and outer ring (7), arranged to allow roll between the inner shaft (6) the outer ring (7) the roller (8), e Bei the inner shaft (6) and the outer ring (7) torque adjustment member (9) for pressing in the axial direction and the inner shaft and the outer ring (7) (6), the roller (8 and rolling surface (10) by a tapered surface of), Ri Contact by disposing the roller (8) rollably between the tapered rolling surface (10), b Ra (8), the center axis, are arranged on the rolling surface (10) in a posture of tilting with respect to the central axis of the outer ring (7) and the inner shaft (6), further, the torque adjustment member (9) has an outer (7) has a pressing portion for pressing the inner shaft (6) relatively in the axial direction, and the torque adjusting member (9) presses the outer ring (7) and the inner shaft (6) relatively in the axial direction. As a result, the slip torque between the outer ring (7) and the inner shaft (6) is adjusted, and when a certain or more tension acts on the fishing line wound on the spool (1), the outer ring (7) and the inner shaft (6) are moved. The dual- bearing type reel is constructed so that the spool is slipped and the spool (1) is rotated and the wound fishing line is paid out.
And a drag mechanism for feeding the fishing line from the spool (1)
In the heat generation state of (5), the thermal expansion of the outer ring (7) is
So that it is smaller than the thermal expansion of the shaft (6).
Control so that the tension of the fishing line
And a dual-bearing type reel. 2. An outer ring (7) and an inner shaft (6) having a thermal expansion coefficient
Made of different metal, the fishing line is paid out from the spool (1)
When the drag mechanism (5) generates heat, the outer ring (7)
Of the inner shaft (6) is smaller than that of the inner shaft (6).
The tension is controlled so that the tension of the line is almost uniform.
The dual-bearing type reel according to claim 1. 3. An outer ring (7) provided with a radiation fin (32).
Then, cool the outer ring (7) with the radiation fins (32),
Drag mechanism (5) for pulling out fishing line from the rule (1)
In the heat generation state, the thermal expansion of the outer ring (7) is
Fishing line tension less than the thermal expansion of
The contract is characterized by controlling the
The dual-bearing type reel according to claim 1 or claim 2. 4. A spool (1) for winding a fishing line,
The predetermined tension acts on the fishing line wound around the rule (1).
And drag to rotate the spool (1) by slipping
Mechanism (5), and the drag mechanism (5) has an inner shaft
(6) and outer ring (7), between inner shaft (6) and outer ring (7)
Roller (8) arranged to be able to roll on the inner shaft
(6) Torque adjusting unit for pressing outer ring (7) in the axial direction
Material (9), the outer ring (7) and the inner shaft (6)
-The rolling surface (10) of (8) is a tapered surface.
Roller (8) between the roller-shaped rolling surfaces (10)
The roller (8) is arranged freely, with the central axis
Posture to be inclined with respect to the center axis of the wheel (7) and the inner shaft (6)
At the rolling surface (10), and furthermore, the torque adjustment
The adjusting member (9) presses the outer ring (7) and the inner shaft (6) relatively.
And a torque adjusting member (9) having an outer ring.
(7) and press the inner shaft (6) relatively in the axial direction.
Slip torque of outer ring (7) and inner shaft (6) is adjusted
The fishing line wound on the spool (1)
The outer ring (7) and inner shaft (6) slip when the
The spool (1) rotates and the wound fishing line
Double-bearing type reel
hand, Drag mechanism (5) and spool (1) have low heat conduction
Connected so that they do not rotate in contact with the local area
A dual-bearing reel. 5. A drag mechanism connected to the spool (1).
(5) connecting ring (19) and connecting ring of outer ring (7)
(21) and steel arranged in each connection groove (22).
5. The device according to claim 4, wherein the components are connected via a ball (18).
Dual bearing reel. 6. A spool (1) for winding a fishing line,
The predetermined tension acts on the fishing line wound around the rule (1).
And drag to rotate the spool (1) by slipping
Mechanism (5), and the drag mechanism (5) has an inner shaft
(6) and outer ring (7), between inner shaft (6) and outer ring (7)
Roller (8) arranged to be able to roll on the inner shaft
(6) Torque adjusting unit for pressing outer ring (7) in the axial direction
Material (9), the outer ring (7) and the inner shaft (6)
-The rolling surface (10) of (8) is a tapered surface.
Roller (8) between the roller-shaped rolling surfaces (10)
The roller (8) has its center axis aligned with the outer ring.
(7) and the attitude of tilting with respect to the center axis of the inner axis (6)
It is arranged on the rolling surface (10) and further adjusts the torque.
The member (9) is relatively axially moving the outer ring (7) and the inner shaft (6).
And a torque adjusting member (9) is provided outside.
Axially pressing the wheel (7) and the inner shaft (6) relatively
As a result, the slip torque between the outer ring (7) and the inner shaft (6) is adjusted.
The fishing line wound on the spool (1)
When the bearing works, the outer ring (7) and inner shaft (6) slide.
The rip, the spool (1) rotates and the wound fishing line
Double-bearing type reels that are configured to be fed out
And A drag mechanism (5) is provided with a roller (8).
The gap between the outer ring (7) and the rolling surface (10) of the inner shaft (6) is
Seal ring (23) for sealing from
(23), the rolling surface (1) of the outer ring (7) and the inner shaft (6).
It is characterized by preventing foreign matter from entering during 0)
Double bearing type reel.