JP3325754B2 - Fishing 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 fishing reel, and more particularly, to a fishing reel incorporating a one-way clutch mechanism for controlling the rotation of a spool.

[0002]

2. Description of the Related Art In a fishing reel, a spool around which a fishing line is wound is rotated by a drive motor or a handle. Between the handle and the spool, there are provided a clutch mechanism for transmitting or interrupting rotational force, a drag mechanism for applying resistance to rotation, a one-way clutch mechanism for allowing only one-way rotation, and the like, according to the fishing operation. The rotation of the spool can be controlled.

[0003] As a general structure of a one-way clutch mechanism, a plurality of rollers held by a roller holder are provided between an inner ring attached to a handle shaft and an outer ring fixed to a structural portion of a reel body. The rollers that are arranged and that contact the outer peripheral surface of the inner ring roll as the inner ring rotates.
The inner surface of the outer ring has a cam recess whose depth changes along the circumferential direction.

When the handle is turned in the direction in which the fishing line is wound up by the spool, the roller which rolls as the inner ring rotates moves deeper into the cam recess of the outer ring. In this state, the rollers can rotate freely. The handle shaft can rotate a spool via a drag mechanism to wind up the fishing line. When the spool tries to rotate in the direction in which the fishing line is paid out by the pulling of the fish, the rotation direction of the inner ring is reversed.
Then, the roller that has rolled in the rotation direction of the inner ring moves to the shallower side of the cam recess and is sandwiched between the cam recess and the inner ring. As a result, the rolling of the rollers and the rotation of the inner ring are prevented, and the reverse rotation of the handle shaft is prevented. If the force applied in the payout direction of the fishing line in a state in which the rotation of the handle shaft is prevented exceeds the rotation resistance force set in advance to the drag mechanism, the fishing line is pulled out with the resistance force applied. This is a state in which a so-called drag force is acting.

[0005]

In the above-described fishing reel, when the drag mechanism is operated and the drag force is acting in order to rotate the spool in the fishing line payout direction, the one-way clutch mechanism is not provided. A force corresponding to the drag force acts. When the drag force applied by the drag mechanism increases, an excessive force exceeding the allowable load is applied to the one-way clutch mechanism, causing damage to the rollers and the roller retainer constituting the one-way clutch mechanism and shortening the service life. Therefore, in order to combine with a drag mechanism for applying a large drag force, a one-way clutch mechanism having a large allowable load must be employed.

However, when the allowable load of the one-way clutch mechanism is increased, there is a problem that the size of the one-way clutch mechanism increases. For example, when the above-described roller clutch mechanism is employed as the one-way clutch mechanism, the size of the rollers needs to be increased or the number of rollers needs to be increased, resulting in an increase in size. Therefore,
An object of the present invention is to make it possible to employ a relatively small one-way clutch mechanism by preventing damage to the one-way clutch mechanism without impairing the drag function when an excessive external force is applied.

[0007]

A fishing reel according to the present invention comprises:
A spool for winding a fishing line is a fishing reel that rotates with respect to the reel body, and includes a rotating shaft, a drag mechanism, a one-way clutch mechanism, and a second rotation preventing mechanism. The rotation of the spool is transmitted to the rotation shaft. The drag mechanism has a driven portion that rotates integrally with the spool, and a driven portion to which rotation of the driven portion is transmitted and rotates integrally with the rotation shaft to apply a rotational resistance to the driven portion, and rotates between the spool and the rotation shaft. To communicate. The one-way clutch mechanism is disposed between the rotating shaft and the reel body, and allows rotation of the fishing line in the winding direction of the fishing line with respect to the rotating shaft. The rotation is blocked until the torque exceeds a predetermined limit value set smaller than the resistance, and the rotation is allowed if the torque exceeds the limit. The second rotation prevention mechanism is disposed between the rotation shaft and the reel body, and allows the rotation of the fishing line in the winding direction of the fishing line with respect to the rotation shaft, and the rotation of the fishing line in the unwinding direction is performed by a one-way clutch mechanism. If they allow rotation, they will stop.

The basic structure of a fishing reel may be the same as a normal fishing reel. The structure of a normal fishing reel, such as a reel body, a spool, a spool support mechanism, and a transmission mechanism of a rotational force between a spool and a handle or a drive motor, can be appropriately combined. Fishing reels include those with various mechanical structures or types, such as dual-bearing reels, single-bearing reels, and spinning reels.If the present invention includes a one-way clutch mechanism or a drag mechanism,
It can be applied to any structure.

The rotation of the spool is transmitted to the rotation shaft via a rotation transmission mechanism such as a gear mechanism or a clutch mechanism. The rotation shaft may be a handle shaft to which a handle is attached, a drive shaft connected to a drive motor, or a shaft to which rotation of a spool is transmitted separately from the handle or the drive motor. It may be. If the drag mechanism is configured to be able to apply a resisting force to the rotation of the driving unit from the side transmitting the torque, that is, the driven unit, when the rotation transmitting side, that is, the driving unit rotates, the specific The structure is not limited, and a single plate type, a multiple plate type, or a drag mechanism structure applied to a normal fishing reel can be adopted. In the drag mechanism, even if it has the same structure, if the direction in which the rotational force is transmitted is different, whether it becomes a driven part or a driven part changes. In the present invention, the member on the spool side is referred to as a driven portion, and the member on the rotating shaft side on the opposite side is referred to as a driven portion. Reverse.

In the drag mechanism, when a rotational force is transmitted to the spool-side driven portion while the driven portion on the rotating shaft side is fixed, the driven portion prevents rotation of the driven portion. When the rotational force of the driving unit increases, a slip occurs between the driving unit and the driven unit, and the driving unit starts rotating. At this time, a preset rotational resistance acts on the driving portion. Specifically, when the fishing line is paid out by pulling a fish or the like, the above-mentioned rotation resistance acts and a so-called drag force acts.

The drag mechanism may be provided with a drag adjusting mechanism such as a star drag for adjusting the magnitude of the rotational resistance generated by the drag mechanism, that is, the set rotational resistance. The maximum set rotation resistance in the drag mechanism is a set rotation resistance set when the largest rotation resistance is set. In the case where the drag adjusting mechanism is provided, the maximum rotational resistance can be generated when the drag adjusting mechanism is set to the maximum drag value.

The basic structure of the one-way clutch mechanism may be the same as that of a normal fishing reel. A pair of members constituting the one-way clutch mechanism are relatively rotatable, and the relative rotation is controlled. It has the function of allowing rotation in one direction and blocking rotation in the other direction. One member constituting the one-way clutch mechanism is supported so as to rotate integrally with the rotation shaft, and the other member is supported so as to rotate integrally with the reel body. Since the reel body is immovable, the other member is also immovable.
Rotation is allowed in one direction and blocked in the other direction.

In the present invention, when the member on the side supported by the rotating shaft rotates in the direction of winding the fishing line, the rotation is allowed. In the case where the fishing line rotates in the payout direction, the rotation is blocked until a predetermined limit value smaller than the maximum set rotational resistance of the drag mechanism is exceeded. However, if the rotation force exceeds the limit value, rotation is permitted. That is, even in the rotation preventing direction, when an excessive force is applied, rotation is permitted, and damage to the one-way clutch mechanism can be prevented.

The following structure can be adopted as a specific structure of the one-way clutch mechanism. A one-way clutch mechanism, an inner race part that rotates integrally with the rotating shaft, a plurality of rolling elements arranged so as to be able to roll and slide along the outer periphery of the inner ring part, and each of the rolling elements is housed in the circumferential direction and the fishing line Having a cam recess on the inner periphery that becomes shallower in the feeding direction of the reel body, and an outer ring portion fixedly disposed in the reel body in the circumferential direction.
The slip resistance between the rolling element and the inner ring portion is set corresponding to the limit value.

The basic structure of the inner race, rolling elements and outer race may be the same as that of a normal one-way clutch mechanism. The arrangement and support structure of the rolling elements, and the shapes and structures of the inner ring portion and the outer ring portion can be configured by appropriately combining the structures of known one-way clutch mechanisms. In the one-way clutch mechanism, when the inner race rotates in the fishing line payout direction, the rolling element moves to a shallow position in the cam recess of the outer race, and the rolling element is sandwiched between the cam recess and the inner race. The moving body cannot roll. If the rolling element does not roll, the inner ring cannot rotate. Therefore, in this state, rotation of the inner ring portion is prevented. When the inner ring rotates in the direction in which the fishing line is wound, the rolling element moves to a position deep in the cam recess, so that the rolling element can freely rotate, and the inner ring can also rotate freely.

In the one-way clutch mechanism, the rolling element can normally roll with respect to the inner ring portion but does not slip, so that the rotation of the inner ring portion is prevented.
However, if the rotational force applied to the inner ring portion exceeds the limit value in a state where the outer ring portion is immobile, sliding occurs between the rolling member and the inner ring portion while the rolling member is fixed to the cam recess of the outer ring portion.
The rotational force when this slip occurs is the slip resistance. The slip resistance varies depending on conditions such as the materials of the rolling elements and the inner ring, the diameter of the rolling elements and the shape of the cam recess.
Therefore, in accordance with the limit value, a desired slip resistance is set by selecting the surface processing accuracy of the inner ring portion, or by selecting the presence or absence of grease to be applied to the contact surface or the material of the grease. Can be.

As the second rotation prevention mechanism, various one-way rotation mechanisms or reverse rotation prevention mechanisms used in ordinary mechanical devices can be employed. The second rotation prevention mechanism is arranged between the rotation shaft and the reel body separately from the one-way mechanism. Similarly to the one-way clutch mechanism, the second rotation preventing mechanism allows the rotation of the rotation shaft in the fishing line winding direction. Therefore, when the fishing line is wound by the handle or the drive motor, the drag mechanism does not operate, and unnecessary resistance is not generated.

When the rotating shaft rotates in the fishing line payout direction, the second rotation preventing mechanism does not operate while the one-way clutch mechanism is preventing the rotation. When the rotational force increases and exceeds the limit value, the one-way clutch mechanism allows the rotation of the rotating shaft. At this stage, the second rotation prevention mechanism operates to prevent rotation of the rotation shaft. The time from when the one-way clutch mechanism permits rotation to when the second rotation prevention mechanism operates may be substantially instantaneous, or may have a slight timing shift.
Even if the one-way clutch mechanism permits rotation, the second rotation prevention mechanism prevents rotation. The second anti-rotation mechanism, which can prevent rotation when the one-way clutch mechanism is applied with a large force that allows rotation, naturally has mechanical strength or durability that does not damage even if such a large force is applied. Use something.

As a specific structure of the second rotation preventing mechanism,
The following structure can be adopted. A ratchet gear that rotates integrally with the rotating shaft, a ratchet claw that is arranged on the reel body and selectively moves to a position where the ratchet gear meshes with the ratchet gear and a position where the ratchet gear disengages, and when the ratchet gear rotates in the fishing line payout direction. There may be provided biasing means for urging the ratchet pawl to a position where the ratchet pawl meshes with the ratchet gear, and urging the ratchet pawl to a position where the ratchet pawl is disengaged from the ratchet gear when the ratchet gear rotates in the winding direction of the fishing line. .

The basic structures of the ratchet gear and ratchet pawl may be the same as those of a normal ratchet mechanism. When the ratchet pawl meshes with the ratchet gear, rotation of the ratchet gear is prevented, and when the ratchet pawl disengages from the ratchet gear, the ratchet gear can rotate freely. The biasing means is provided by various spring materials such as a leaf spring and a coil spring, or a combination of a plurality of types of spring materials, and a combination of a spring material and a mechanism member such as a cam or a link.
The operation state of the ratchet pawl changes according to the rotation direction of the ratchet gear.

The following structure can be adopted as a specific structure of the urging means. The urging means includes a C-shaped annular portion slidably wrapped around the outer periphery of the rotary shaft and made of an elastic wire, and an extended arm extending from one end of the C-shaped annular portion and having a tip supported by a ratchet pawl. Prepare. As the elastic wire, a material similar to that of a normal coil spring or the like is used. The elastic wire material may be not only a wire material having a circular cross section but also a polygonal material such as a rectangular shape or a strip-shaped wire material as long as it can be elastically deformed. The C annular portion has a diameter along the outer peripheral shape of the rotating shaft,
It is disposed so as to be able to slide elastically against the outer periphery of the rotating shaft.

When the rotating shaft rotates, the C annular portion also tries to rotate with the rotating shaft due to the frictional support force between the outer periphery of the rotating shaft and the C annular portion, and the extension arm extended to one end of the C annular portion also has the C annular portion. Moves with. When the extension arm moves, the ratchet pawl operates to engage or disengage with the ratchet gear. When the rotating shaft further rotates while the ratchet pawl is operated at the meshing position or the disengaging position with the ratchet gear, a slip occurs between the rotating shaft and the C annular portion, so that the C annular portion rotates. It does not hinder rotation of the shaft.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fishing reel shown in FIG. 1 is a dual-bearing reel, which includes a reel body 1, a spool rotating handle 2 disposed on the side of the reel body 1, and a side of the handle 2 on the reel body 1 side. And a star drag 3 arranged at the center. The reel body 1 can be fixed to a fishing rod (not shown) via a reel attachment member.

[Overall Structure] The reel body 1 comprises a frame having a pair of side plates 10 and 11 arranged at a predetermined interval, and a first cover 1 mounted on both sides of the frame.
3 and a second cover 14. A pair of side plates 1
A spool 15 is rotatably arranged between 0 and 11. A level wind mechanism 16 for uniformly winding the fishing line on the spool 15 is also arranged between the side plates 10 and 11 alongside the spool 15.

Outside the side plate 11 and inside the second cover 14,
A rotation transmission mechanism 20 for transmitting torque from the handle 2 to the spool 15 and the level wind mechanism 16 and a clutch mechanism 21 provided in the rotation transmission mechanism 20 are arranged. The rotation transmission mechanism 20 includes a rotation control mechanism 22 for restricting torque when torque is reversely transmitted from the spool 15 to the handle 2 side.

A spool shaft 25 is fixed to the center of the spool 15. The spool shaft 25 is rotatably supported by the side plates 10 and 11 via bearings 26. The rotation transmitting mechanism 20 includes a handle shaft 30 having one end to which the handle 2 is fixed, a main gear 31 connected to the other end of the handle shaft 30 via a rotation control mechanism 22, and a pinion gear 32 meshing with the main gear 31. have.

The handle shaft 30 is disposed in parallel with the spool shaft 25, and one end of the handle shaft 30 is rotatably supported by the side plate 11. The main gear 31 can be connected to one end of the handle shaft 30 via the rotation control mechanism 22 so as not to rotate relatively. With such a configuration, when the clutch mechanism 21 is turned on, the torque from the handle 2 is directly transmitted to the spool 15.

The clutch mechanism 21 includes a cylindrical pinion gear 3 slidably mounted on an outer peripheral portion of a spool shaft 25.
2 and an engaging groove 32 arranged in a part of the pinion gear 32
a and a pin 36 disposed on the spool shaft 25.
When the pinion gear 32 is slid along the spool shaft 25 to engage the engagement groove 32 a with the pin 36, rotational force is transmitted between the spool shaft 25 and the pinion gear 32.
This state is clutch-on. Engagement groove 32a and pin 3
6 is disengaged, the spool shaft 25 and the pinion gear 32
No rotational force is transmitted between and. This state is clutch off. In the clutch off state, the spool 15 rotates freely. The pinion gear 32 is biased by biasing means (not shown) in a direction in which the engagement groove 32a and the pin 36 are engaged, that is, in a clutch-on state.

As shown in detail in FIG.
2 includes a one-way clutch mechanism 40 and a drag mechanism 5
0, and a ratchet mechanism 60 serving as a second rotation prevention mechanism. [One-way clutch mechanism] As shown in detail in FIG.
The one-way clutch mechanism 40 is slidable in the axial direction with respect to the handle shaft 30 and is supported in the circumferential direction so as to be fixed in the circumferential direction. It has a roller 44 disposed, a roller retainer 46 for accommodating the roller 44, and an outer ring portion 48 disposed on the outer periphery of the roller retainer 46 and the roller 44. The outer ring portion 48 is supported by a cylindrical housing member 140 fixed to a part of the second cover 14.

In the roller holder 46, a plurality of accommodation holes 46a for the rollers 44 are arranged at intervals in the circumferential direction, and the rollers 44 are accommodated in the respective accommodation holes 46a. The inner wall of the housing hole 46a has a pressing piece 46b for elastically pressing the roller 44 against the inner wall on the opposite side. A cam recess 48a is provided at a position corresponding to each roller 44 on the inner surface of the outer ring portion 48. The cam recess 48a changes in depth from one side to the other in the circumferential direction. Specifically, the pressing piece 46b side of the roller holder 46 is deep and shallow toward the opposite side. The outer surface of the outer ring portion 48 has a convex portion 48c having a shape corresponding to the cam concave portion 48a on the inner surface.

On the inner surface of the housing member 140, there is provided a rotation preventing recess 142 into which the projection 48c of the outer ring portion 48 fits, so that the outer ring portion 48 is immovable in the circumferential direction with respect to the housing member 140. The operation of the one-way clutch mechanism 40 will be described. In FIG. 3, when the handle shaft 30 rotates in the Y direction, which is the winding direction of the fishing line, the roller 44 can move freely to the deeper part of the cam recess 48b and rotate freely. 30 also rotates freely. When the handle shaft 30 rotates in the X direction, which is the direction in which the fishing line is paid out, the roller 44 that contacts the outer peripheral surface of the inner ring portion 42 rolls and moves to a shallower portion of the cam concave portion 48a, and the cam concave portion 48a and the inner ring portion 42 Because it is sandwiched between
The rotation of the inner ring portion 42 and the handle shaft 30 is prevented.
However, if the rotational force applied from the handle shaft 30 increases and exceeds the slip resistance between the roller 44 and the outer peripheral surface of the inner ring portion 42, the roller 44 and the inner ring portion 42 slide, causing the inner ring portion 42 and The handle shaft 30 rotates. The slip resistance can be adjusted by the surface finishing accuracy of the inner ring portion 42. If the surface finish is smooth, the slip resistance decreases, and if the surface finish has irregularities, the slip resistance increases. This slip resistance is set to be smaller than the maximum set rotation resistance in the drag mechanism 50 described later.

[Drag Mechanism] As shown in FIG. 2, the main gear 31 is not fixed to the handle shaft 30 and freely rotates. A driving side plate 51 is provided on a side surface of the main gear 31. Another driving side plate 52 is provided on the driving side plate 51 at an interval in the surface direction.
Are mounted so as to be able to rotate together. The driven-side plate 53 meshes with the inner ring portion 42 of the one-way clutch mechanism 40 and rotates integrally. The two driving side plates 5
At the intermediate position between 1 and 52, another driven side plate 54 meshes with the handle shaft 30 to rotate integrally. Friction plates 55, 55 are sandwiched between the driven side plates 53, 54 on both sides of the driven side plate 52. One end of a drag adjustment spring 56 is in contact with an end of the inner ring portion 42 opposite to the driven side plate 53, and the other end of the drag adjustment spring 56 is in contact with an end of the star drag 3. The biasing force of the drag adjusting spring 56 is applied to each of the driven side plates 53 via the inner ring portion 42 slidable in the axial direction with respect to the handle shaft 30.
54, friction plates 55, 55 and driving side plate 5
1, 52 are pressed against each other. When the position of the star drag 3 is adjusted in the axial direction, the pressing force by the drag adjusting spring 56, that is, the drag force is adjusted.

Therefore, the rotational force is transmitted between the main gear 31 and the handle shaft 30 by the frictional pressure of the plates 51 to 55 of the drag mechanism 50. In a state where the inner ring portion 42 and the handle shaft 30 of the one-way clutch mechanism 40 are prevented from rotating, the driven side plate 5
3 and 54 do not rotate, even if the main gear 31 rotates, the driven plates 53 and 54 and the friction plates 55 and 5
The rotation of the main gear 31 is prevented by the frictional resistance between the main gear 31 and the driving side plates 51 and 52. If the rotational force of the main gear 31 increases and exceeds the frictional resistance, a slip occurs between the plates 51 to 55, and the rotation of the main gear 31 is allowed. The limit rotational force that can prevent the rotation of the main gear 31 is the set rotational resistance. The set rotational resistance can be changed by the magnitude of the urging force of the drag adjusting spring 56, that is, by adjusting the star drag 3. When the drag force is maximized with the star drag 3, the maximum set rotation resistance force acts.

[Ratchet mechanism] FIGS. 2, 4 and 5
As shown in FIG.
, A ratchet gear 62 is fixed. A ratchet pawl 64 is arranged on the outer peripheral side of the ratchet gear 62. The ratchet pawl 64 is rotatably attached to the second cover 14, and the tip of the ratchet pawl 64 moves between a position where the ratchet pawl 64 meshes with the ratchet gear 62 and a position where the meshing is released. At a position where the ratchet pawl 64 is disengaged, the stopper 65
, So that the ratchet pawl 64 does not rotate any further (see FIG. 5).

As shown in FIG. 2, the handle shaft 30 has a grooved flange 30a at a position adjacent to the side surface of the ratchet gear 62. A silent cam spring 66 made of a linear spring material is supported on the concave grooved flange 30a. The silent cam spring 66 is provided with the concave grooved flange 30.
The C-shaped portion 67 has a C-shaped annular portion 67 around which a is wound and an extended arm 68 extended from one end of the C-shaped portion 67. The extension arm 68 is elastically folded back in a U-shape from the tip of the C annular portion 67 and extends substantially in the radial direction of the ratchet pawl 64, and is supported halfway in the radial direction of the ratchet pawl 64. The silent cam spring 66 is always urged by its elastic restoring force so that the ratchet pawl 64 moves in a direction to disengage from the ratchet gear 62.

The operating portion 21a of the clutch mechanism 21 is disposed adjacent to the ratchet mechanism 60. The operating portion 21a of the clutch mechanism 21 is configured by combining a lever, a link, a cam, a spring, or the like, and operates the pinion gear 32 to a position where the pinion gear 32 is engaged with the spool shaft 25 and a disengaged position. Further, the clutch is automatically switched according to the rotation direction of the handle shaft 30.

The operation of the ratchet mechanism 60 will be described. As shown in FIG. 4, when the handle shaft 30 rotates in the fishing line payout direction X, the C annular portion 67 of the silent cam spring 66 that comes into contact with the grooved flange 30 a moves the handle shaft 30.
Try to rotate with. The extension arm 68 connected to the C annular portion 67 also moves to rotate the ratchet pawl 64 to the meshing position. Ratchet pawl 64 is ratchet gear 6
2, the handle shaft 30 cannot rotate any further. Since the ratchet pawl 64 does not simply prevent the ratchet gear 62 from rotating by frictional resistance, the rotation of the handle shaft 30 is permitted no matter how much the rotational force of the handle shaft 30 increases, as long as the ratchet mechanism is not broken. I will not do it.

As shown in FIG. 5, when the handle shaft 30 rotates in the fishing line winding direction Y, the C annular portion 67 that contacts the grooved flange 30a rotates, and the C annular portion 67 rotates.
Arm 68 connected to the ratchet pawl 64 engages and pushes the ratchet pawl 64 in the disengagement direction. When the ratchet pawl 64 is disengaged, the ratchet gear 62 and the handle shaft 30 can rotate freely. At this time, since the concave grooved flange 30a slides with respect to the C annular portion 67, the C annular portion 67 does not hinder the rotation of the handle shaft 30.

[0039] In the ratchet mechanism 60, by the action of the silent cam spring 6 6, the rotation direction of the handle shaft 30, so or is biased off meshing or biased to a position ratchet pawl 64 engage position, the switching operation Can be performed smoothly. [Related Operation of Each Mechanism] The relevant operation of each mechanism when the fishing reel is used will be described.

When the fishing line is wound by the handle 2, the rotation of the handle 2 is transmitted from the handle shaft 30 to the inner race 42 of the one-way clutch mechanism 40. Since the one-way clutch mechanism 40 allows rotation, the rotational force is controlled by the drag mechanism 50.
Is transmitted to the main gear 31 as it is. If the clutch mechanism 21 is on, the rotation of the main gear 31 is transmitted from the pinion gear 32 to the spool 15, and the fishing line is wound up. At this time, in the ratchet mechanism 60,
Since the ratchet pawl 64 is in the disengaged position, rotation is allowed .

Next, when the fishing line is paid out by pulling a fish or the like, the rotation of the spool 15 is transmitted to the main gear 31 and transmitted to the handle shaft 30 and the inner ring portion 42 of the one-way clutch mechanism 40 via the drag mechanism 50. . The one-way clutch mechanism 40 is prevented from rotating. If the fish is weakly pulled, the spool 15 does not rotate and the fishing line is not pulled out. Then, when the fish is strongly pulled and the rotational force of the spool 15 increases, the transmitted rotational force exceeds the set rotational resistance of the drag mechanism 50. Then, since the drag occurs in the drag mechanism 50, the spool 15 including the main gear 31 starts rotating. At this time, a constant resistance, that is, a drag force always acts on the spool 15 from the drag mechanism 50.

Next, when an excessive force acts on the spool 15, the inner race portion 42 of the one-way clutch mechanism 40
And the roller 44 slides, and the rotation of the inner ring portion 42 is allowed. Since the inner ring portion 42 and the roller 44 slide in this manner, an excessive force is prevented from acting on the roller 44 and the roller holder 46, and the one-way clutch mechanism 40 is protected.

When the inner ring 42 starts rotating, the handle shaft 30 also tries to rotate. However, the ratchet mechanism 60
In this case, since the silent cam spring 66 engages the ratchet pawl 64 with the ratchet gear 62 and the rotation of the ratchet gear 62 is prevented, the rotation of the handle shaft 30 is also prevented. Therefore, even if rotation is permitted by the one-way clutch mechanism 40, the rotation preventing action by the ratchet mechanism 60 immediately acts, and the rotation of the handle shaft 30 is reliably prevented. At this time, the drag occurs in the drag mechanism 40 in a state where the rotation resistance force is applied, so that the spool 15 rotates with the drag force applied.

When an impact force is applied to the spool 15 instantaneously or for a short time, an excessive impact force may be applied to the one-way clutch mechanism 40 before the drag mechanism 40 slips. Even in such a case,
In the one-way clutch mechanism 40, the roller 44 and the inner ring 4
2 causes a slip, so that the one-way clutch mechanism 40
Is not damaged.

The rotational force at which the one-way clutch mechanism 40 causes slippage can be appropriately set depending on the structure of the fishing reel. For example, when the breaking strength of the one-way clutch mechanism 40 is 110 kg-cm, if the slip is generated at a rotating torque of 80 kg-cm, which is sufficiently lower than the breaking strength, the one-way clutch mechanism 40 will have the above rotation. A force exceeding the torque does not act, so that damage to members constituting the one-way clutch mechanism 40 can be reliably prevented.
Under the above conditions, the tension of the fishing line becomes about 7 kg and the drag mechanism 5
The value is lower than the maximum set drag force of 8 kg generated at 0. However, even in this case, the maximum tension of the fishing line may momentarily exceed 10 kg, and even if such an excessively large force is applied, the one-way clutch mechanism 40 can be prevented from being damaged.

If only the rotation of the handle shaft 30 is to be prevented, only the ratchet mechanism 60 may be provided and the one-way clutch mechanism 40 may be omitted. However, in the ratchet mechanism 60, the ratchet pawl 64 has the ratchet gear 6
It takes a certain amount of time to perform the operation of engaging and disengaging the 2. In order to achieve the quick and smooth rotation preventing operation required for the fishing operation, the above-described one-way clutch mechanism 40 is preferable, and the ratchet mechanism 60 bears an excessive force that the one-way clutch mechanism 40 cannot bear. Is valid.

[0047] In the ratchet mechanism 60 of the Other Embodiments (a) FIGS. 4 and 5, had been selectively moved to a position deviated meshed with position meshing with the ratchet pawl 64 by the action of the silent cam spring 6 6 The ratchet pawl 64 may always be biased toward the meshing position. In this case, when the handle shaft 30 rotates in the fishing line payout direction X, the ratchet pawl 64 is arranged at the meshing position as in the above-described embodiment. When the handle shaft 30 is rotated in the winding direction Y of the fishing line,
A ratchet pawl 64 is provided behind each tooth of the ratchet gear 62.
Against the urging force, and the handle shaft 30 can rotate freely. When the handle shaft 30 is rotated, the ratchet pawl 64 is repeatedly pushed and repelled to the outer peripheral side or bitten into the teeth for each tooth of the ratchet gear 62, so that an intermittent collision sound is generated. This collision sound can be used as a notification sound that indicates the rotation of the handle shaft 30 to the operator.

[0048]

According to the fishing reel of the present invention, an excessive force is applied to the one-way clutch mechanism incorporated in the fishing reel even when an excessive rotational force is applied from the fishing line to the spool by pulling a fish during use. Therefore, damage to the one-way clutch mechanism can be prevented, and the durability or life of the one-way clutch mechanism can be improved. In addition, the required functions can be fully exhibited without using a large one-way clutch mechanism with a large load capacity that can withstand a large force, that is, the one-way clutch mechanism can be reduced in weight and size. it can.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional view of a dual-bearing reel representing an embodiment of the present invention.

FIG. 2 is a partially enlarged view showing a one-way clutch mechanism and a second rotation prevention mechanism.

FIG. 3 is an enlarged sectional view of the one-way clutch mechanism in a direction perpendicular to the axis.

FIG. 4 is a front view showing a rotation prevention state of a second rotation prevention mechanism.

FIG. 5 is a front view illustrating a rotation allowable state of a second rotation prevention mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 15 Spool 30 Handle shaft (rotating shaft) 40 One-way clutch mechanism 42 Inner ring part 44 Roller 48 Outer ring part 50 Drag mechanism 51, 52 Driving side plate 53, 54 Driving side plate 60 Ratchet mechanism (second rotation prevention mechanism) 62 Ratchet gear 64 Ratchet pawl 66 Wire spring (biasing means) 67 C annular portion 68 Extension arm

Claims (4)

(57) [Claims] 1. A fishing reel in which a spool for winding fishing line rotates with respect to a reel body, a rotating shaft to which the rotation of the spool is transmitted, a main driving unit that rotates integrally with the spool, and the main driving unit. A drag mechanism for transmitting rotation between the spool and the rotary shaft, the driven mechanism comprising: a driven portion to which rotation of the spool is transmitted and integrally rotated with the rotary shaft to apply a rotational resistance to the main driving portion; And the reel body, the rotation axis is allowed to rotate in the winding direction of the fishing line with respect to the rotation axis, and the rotation of the fishing line in the payout direction is the maximum set rotation resistance of the drag mechanism. A one-way clutch mechanism that prevents rotation until the torque exceeds a predetermined limit value set smaller than that, and allows rotation if the torque exceeds the limit value, between the rotation shaft and the reel body. And the rotation axis is allowed to rotate in the winding direction of the fishing line with respect to the rotation axis, and the rotation of the fishing line in the payout direction is stopped when the one-way clutch mechanism allows rotation.
And a rotation preventing mechanism. 2. The one-way clutch mechanism, comprising: an inner ring portion that rotates integrally with the rotating shaft; a plurality of rolling elements disposed so as to be able to roll and slide along an outer periphery of the inner ring portion; Each of which has a cam concave portion on the inner periphery, which is shallower in the circumferential direction in the fishing line payout direction, and an outer ring portion fixedly disposed in the reel body in the circumferential direction, corresponding to the limit value. The fishing reel according to claim 1, wherein a slip resistance between the rolling element and the inner ring portion is set. 3. A ratchet gear that rotates integrally with the rotation shaft, a second ratchet gear disposed on the reel body, and a position where the ratchet gear meshes with the ratchet gear and a position where the second ratchet gear disengages from the ratchet gear. A ratchet pawl that selectively moves, and when the ratchet gear rotates in the fishing line payout direction, urges the ratchet pawl to a meshing position with the ratchet gear; and when the ratchet gear rotates in the winding direction of the fishing line, the ratchet pawl rotates. The fishing reel according to claim 1 or 2, further comprising: urging means for urging the ratchet pawl to a position where the ratchet pawl is disengaged from the ratchet gear. 4. The C-shaped part, wherein the urging means is made of an elastic wire, and is slidably wound around the outer periphery of the rotating shaft; and the ratchet extends from one end of the C-shaped part and has a tip end. The fishing reel according to claim 3, further comprising an extension arm supported by the claw.