JP3668451B2 - Spinning reel reverse rotation prevention device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an anti-reverse device for a spinning reel for fishing. More specifically, the present invention relates to a spinning reel capable of switching a rotor that rotates integrally with a pinion shaft cylinder to prevent reverse rotation and to allow reverse rotation by utilizing the wedge action of a rolling member. The present invention relates to a reverse rotation prevention device.
[0002]
[Prior art]
Japanese Laid-Open Patent Publication No. 54-141285 discloses a spinning reel reverse rotation prevention device that can switch a rotor between reverse rotation prevention (ON) and reverse rotation possible (OFF) by utilizing the wedge action of this type of rolling member. What is disclosed is already known. In the reverse rotation prevention device having the above structure, there is a fear that the wedge action does not work unless the rolling member is moved to an accurate position in order to be in the ON state, and the rolling member is accurately moved to the position where the wedge action works. Although it must be manufactured, it requires considerable precision to adjust the movement angle of the retainer and the like, and this causes problems such as a decrease in productivity and an increase in cost.
[0003]
In order to solve the above problems, those disclosed in JP-A-6-58348 and JP-A-6-225673 have been developed. In the anti-reverse device having the above-described structure, an elastic body formed by bending a leaf spring is disposed on each of the rolling members, and the retainer is turned in a direction to turn on, and then the rolling member is further rotated by the elastic body. Is moved in the direction in which the wedge action works. That is, even if there is some manufacturing error, the error is absorbed by the movement of the rolling member so that the wedge action works normally.
[0004]
However, even with the structure as described above, attaching or forming an elastic body for urging a small rolling member on each rolling member is a very fine work, and eventually leads to a fundamental solution. There is no current situation.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the problems of the conventional techniques as described above, and the object of the present invention is to improve productivity with a simple configuration without particularly increasing accuracy and cost. It is an object of the present invention to provide a spinning reel reverse rotation prevention device capable of lowering the rotation speed and performing an accurate wedge action.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the technical means taken by the present invention is that a pinion shaft cylinder that is rotated by the rotation of a handle is rotatably fitted to the outside of a main shaft that is provided on a reel body so as to be movable back and forth. An inner ring is fitted on the outer side of the pinion shaft cylinder so as to rotate integrally with the coaxial cylinder, and an outer ring positioned outside the inner ring is fixed to the reel body so as not to rotate. A retainer that holds a plurality of rolling members that can take in a position where the wedge bites into and acts as a wedge and a position where the wedge does not act by swinging between the two wheels is rotatably interposed, and the retainer is rotated to roll. In a spinning reel reverse rotation prevention device in which a retainer is provided with an operation rod connected to an operation mechanism for moving and holding a member between a position where the member acts as a wedge and a position where the member does not act as a wedge, the retainer includes a small number of retainers. Both above is for further enabling biased in direction acting wedge by biasing means than a predetermined rotational position that is rotated at the time of switching by said operating mechanism to the position where the rolling member is a wedging action.
[0007]
The biasing means may be any means as long as it can hold the retainer ON state by pulling the operating rod in the retainer. Specifically, a tension coil spring spanned between the retainer and the attachment member to the reel body, etc. Can be achieved.
[0008]
According to the above configuration, when the rotor that rotates in the forward direction when the operation mechanism is turned on tries to reversely rotate, the wedge action works to prevent the reverse rotation, but there is a manufacturing error or a rolling member or Even if the inner and outer rings are worn and the rolling member does not bite into both wheels and the wedge action does not work just by operating the operating mechanism, the retainer is rotated by the operating mechanism by the biasing means. Since the retainer is biased in the direction in which the wedge action is performed further than the rotation position, the retainer rotates in the direction in which the wedge action works, and the rolling member bites into both wheels so that the wedge action works accurately.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a part of a spinning reel provided with an anti-reverse device A according to the present invention, and a pinion shaft cylinder that rotates by the rotation of a handle on the outside of a main shaft 2 provided on the reel body 1 so as to be slidable in the front-rear direction. 3 is installed, and an anti-reverse mechanism A for switching the rotation direction of the coaxial cylinder 3 is disposed outside the pinion shaft cylinder 3, and a rotor 4 for winding a fishing line around a spool 2 'attached to the tip of the main shaft 2 is attached and detached. It is mounted so that it can rotate freely and integrally.
[0010]
In the reverse rotation prevention mechanism A, an inner ring A1 is fitted so as to rotate integrally with a pinion shaft cylinder 3 positioned outside the main shaft 2, and an outer ring A2 is positioned on the reel body 1 so as to be positioned outside the inner ring A1. It is fixed so that it cannot rotate. Between these two wheels, a retainer A4 that holds a plurality of rolling members A3 that can take a position in which the wheels bite into the two wheels and a position in which the two wheels rotate and do not act on the wedges is rotatably provided. Configured.
[0011]
The rolling member A3 is formed in a columnar shape and is movably fitted in an arcuate guide groove A21 provided on the inner side of the outer ring A2, and is wedged by the retainer A4 between the guide groove A21 and the inner ring A1. It is configured to be movable and switchable between a position where it acts and a position where it does not act as a wedge. Further, the guide groove A21 has a shallow groove A211 at the end in the direction in which the rolling member A3 acts as a wedge, and the deep groove A212 that gradually deepens from the shallow groove at the end in the direction in which the rolling member A3 does not act. When the rolling member A3 moves to the shallow groove A211, the wheels bite into both wheels to act as a wedge, and when the rolling member A3 moves to the deep groove A212, the wheels rotate to prevent the wedge action from acting.
[0012]
The retainer A4 is formed in a cylindrical shape, and a concave portion A41 that fits with an operation ring A5 described later in FIG. The rolling member A3 is held on the peripheral side surface of the retainer A4, and a guide hole A42 is provided for moving the wedge member in a direction in which the wedge action works and a direction in which the wedge action does not work, and holding the state. As clearly shown in FIG. 3, a rolling member holding piece A43 is provided on the inner side of the guide hole A42 so as to project from the deep groove A212 to the shallow groove A211 in the guide groove A21. A gap A44 is provided between the tip portion and the inside of the guide hole A42 so that a part of the rolling member A3 is exposed from the inner peripheral surface of the retainer A4.
[0013]
When the retainer A4 rotates the retainer A4 in the direction of the arrow X shown in FIG. 3 where the wedge action does not work, the rolling member A3 rides up and fits into the deep groove A212 of the guide groove A21. Keep state. In this state, the rolling member A3 rides on the rolling member holding piece A43, so that it rotates freely between the outer ring A2 and the inner ring A1, and the pinion shaft cylinder 3 and the rotor 4 can rotate forward and backward. Conversely, when the retainer A4 is rotated in the direction of the opposite arrow X in which the wedge action acts, the rolling member A3 moves to the gap A44 and maintains the state of being fitted in the shallow groove A211 of the guide groove A21. In this state, the rolling member A3 enters the gap A44, so that it wedges into the outer ring A2 and the inner ring A1 to act as a wedge, and the pinion shaft cylinder 3 and the rotor 4 cannot rotate in the reverse direction of the arrow X.
[0014]
The retainer A4 is fitted with an operation ring A5 for rotating the retainer A4 as described above with reference to FIG. The operation ring A5 has a convex portion A51 that fits into the concave portion A41 of the retainer A4 on the inner peripheral surface thereof, and is integrated with the retainer A4 by fitting the convex portion A51 into the concave portion A41. The operating ring A5 is integrally formed with an operating rod A52 that is connected to the operating mechanism 5 that moves the retainer A4 between a position where the rolling member A3 acts as a wedge and a position where the retainer A3 does not act as a wedge.
[0015]
The operating mechanism 5 is provided with a connecting tool 52 connected to the operating rod A52 at the tip of the retainer A4 side of the rotary shaft 51 that is rotatably mounted so as to pass through the reel body 1 in the front-rear direction, and at the other end. Is provided with a lever 53 for rotating the rotary shaft 51. The connecting member 52 has a bulging portion 54 formed outwardly from the center of the rotating shaft 51 on a peripheral side surface formed in a bottomed cylindrical shape, and the center of the rotating shaft 51 is formed on a distal end surface of the bulging portion 54. The connection protrusion 55 is provided in an eccentric state.
[0016]
The operating rod A52 is formed in a strip shape, and is provided on the peripheral side surface of the operating ring A5 so that the wide surface of the operating rod A52 is directed in the axial direction of the operating ring A5 and protrudes outward. A connection hole A53 into which the connection protrusion 55 of the operation mechanism 5 is fitted is provided on the surface.
[0017]
Further, a tension coil spring 6 as a biasing means for biasing the retainer A4 in a wedge action direction is stretched around the operation rod A52 and a pin standing on the reel body 1. When the retainer A4 is rotated to the predetermined rotation position B in FIG. 2 where the wedge A acts by operating the operation mechanism 5, the rolling member A3 bites into the inner ring A1 and the outer ring A2 according to the anti-reverse device A manufactured with high accuracy. Wedge action. However, the accuracy of the reverse rotation prevention device A is poor, or the outer peripheral surface of the rolling member A3, the outer peripheral surface of the inner ring A1, and the shallow groove A211 of the A2 are worn out, and the rolling member A3 becomes the inner ring A1 and the outer ring A2. If the wedge action is not possible, the tension coil spring 6 pulls the operating rod A52 to urge the retainer A4 to the error absorbing position B ′ in the direction of wedge action further than the predetermined rotation position B. For this reason, the rolling member A3 held by the retainer A4 can be surely digged into the inner ring A1 and the outer ring A2 to perform a wedge action.
[0018]
【The invention's effect】
The present invention has the following effects by the above configuration. If the pinion shaft cylinder that rotates in the forward direction when the operation mechanism is turned on tries to reversely rotate, the wedge action works and the reverse rotation is prevented. Even if the operating surface of the outer ring wears out and the rolling member does not bite into both wheels only by operating the operating mechanism and the wedge action does not work, the direction in which the wedge action by the urging means further acts from that position The rolling member together with the retainer is rotated in the direction in which the wedge action works by the urging force, and it can bite into both wheels to reliably prevent reverse rotation. Accordingly, it is possible to provide a spinning reel reverse rotation prevention device that can improve productivity, reduce costs, and simplify assembly work without particularly increasing accuracy.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an essential part of a spinning reel provided with a reverse rotation preventing device according to the present invention.
2 is a cross-sectional view taken along line (2)-(2) in FIG. 1, partially cut away.
FIG. 3 is a partially enlarged cross-sectional view of the reverse rotation prevention device showing a reverse rotation prevention state.
FIG. 4 is an exploded perspective view of the reverse rotation prevention device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Reel body 2 ... Main shaft 2 '... Spool 3 ... Pinion shaft cylinder 4 ... Rotor 5 ... Operation mechanism 6 ... Tension coil spring (biasing means)
A ... Reversal prevention device A1 ... Inner ring A2 ... Outer ring A3 ... Rolling member A4 ... Retainer A52 ... Operating rod

Claims (1)

A pinion shaft cylinder that rotates by the rotation of a handle is rotatably fitted to the outside of a main shaft that is provided on the reel unit so as to be movable back and forth, and an inner ring is integrally rotated with the coaxial cylinder on the outside of the pinion shaft cylinder. The outer ring located outside the inner ring is fixed to the reel body so as not to rotate. Between the two wheels, a position where the outer ring digs into the two wheels and acts as a wedge, and the two wheels rotate loosely between the two wheels. An operation for rotatably holding a retainer for holding a plurality of rolling members that can take positions that do not act, and for moving the retainer to a position where the rolling members are wedged and a position where the rolling members are not actuated by moving the retainer In a spinning reel reverse rotation prevention device in which an operating rod connected to the mechanism is provided on the retainer, the retainer is placed on the operating mechanism at least at a position where the rolling member performs a wedge action. Switching backstop spinning reel, characterized in that it is further possible biases acting wedge by biasing means than a predetermined rotational position that is rotated at.

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