JP3055686U - One-way clutch bearing - Google Patents

Abstract

(57) [Problem] To provide a one-way clutch bearing having an on / off switching function. A bearing (20) has one side open and the other side closed, a housing (22), an insert member (24) made of synthetic resin, six rollers (34), a clutch lever (36), and an open side of the housing (22) closed. And a bush 48 which fits inside the bearing. The insert member 24 has a circular base 26 and a plurality of retaining bars 28 projecting upward from the base. The retaining bar has a plate-shaped spring 30 at an adjacent portion in the leftward direction as viewed from the center. The retaining bar has a boss 32 at the upper end thereof, which is housed in the circular slit 40 of the clutch lever 36. A plurality of arc-shaped recesses 62, 63;
, 63 ′; 62 ″, 63 ″.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a one-way clutch bearing having an on / off switching function, and more specifically, a one-way clutch bearing applied to a pinion shaft of a spinning reel to prevent reverse rotation of a fishing spinning reel. About.

In particular, the present invention relates to a reverse rotation of a long-stroke spinning reel disclosed in Korean Patent Application No. 44461 (Japanese Patent Application No. 290532) filed on Oct. 8, 1996. For preventing one way clutch bearing.

[0003]

[Prior art]

 The reverse rotation preventing mechanism of a normal spinning reel is generally formed on a click gear disposed inside the rotor of the spinning reel as shown in the following example.

[0004] Japanese Utility Model No. 94-7711, which is assigned to Daiwa Seiko Co., Ltd., discloses a reverse rotation preventing click gear 3 inside a concave portion of a rotor (not shown) as shown in FIG. A shaft portion 6 is integrally formed with the stopper click 4 to be connected, and the shaft portion 6 is journaled at a front portion of the reel body 5 and an operating member 7 of the stopper click 4 operated by an operation arm (not shown). A reverse rotation prevention device for a spinning reel installed inside the reel body 5 is disclosed.

An operating member 7 is provided integrally with the shaft portion 6 of the reel body 5, and the operating member 7 is operated by a cam portion of an operation arm having a lever 8 supported inside the reel body 5. The stopper click 4 is provided with a spring 11 which is constantly biased so as to be engaged with the reverse rotation preventing click gear 3.

According to the configuration of the conventional anti-reverse rotation device for a spinning reel, the lever 8 is moved to the left by the operation arm, and the stopper click 4 is engaged with the anti-reverse click gear 3. , The rotor can rotate during forward rotation (clockwise), but cannot rotate during reverse rotation (counterclockwise) due to the engagement state of the stopper click 4 and the reverse rotation preventing click gear 3. .

On the other hand, when the lever 8 is moved to the right by the operation arm and the stopper click 4 is supported in a state of being separated from the reverse rotation preventing click gear 3, the rotor can freely rotate forward and reverse.

[0008]

[Problems to be solved by the invention]

 As described above, according to the conventional reverse rotation prevention device shown in FIG. 8, there is a problem that the rotor slips when the reverse rotation is prevented. Therefore, in order to ensure the engagement state between the stopper click 4 and the reverse rotation preventing click gear 3, the tooth profile of the gear is generally enlarged.

However, in general, when the size of the tooth portion is increased as described above, the number of the tooth portions is reduced. However, the reduction in the number of the tooth portions increases the angle of the reverse rotation induction. Therefore, there is a problem that reverse rotation cannot be prevented quickly.

Further, as shown in FIG. 8, when the stopper click 4 is located on the edge side of the toothed portion of the reverse rotation preventing click gear 3, the lever 8 is moved to the left to prevent reverse rotation. Since the rotor slips by the length of one tooth until the end of No. 4 comes into contact with the groove of the tooth, the problem is that the rotating gear cannot be braked instantaneously and reliably. is there.

On the other hand, Japanese Patent Laid-Open Publication No. 64-38963 discloses that a one-way bearing is fitted around the inner periphery of a latch wheel so that a roller of the one-way bearing is provided around an outer periphery of a rotary shaft bush. A reverse rotation preventing device configured to be fitted is disclosed.

However, in the above-described apparatus, the peripheral speed of the roller contact surface is reduced due to the small diameter of the rotary shaft bush into which the roller of the one-way bearing is fitted, so that the braking is not instantaneously and reliably performed. There is. In addition, there is a drawback that when a reverse rotation is stopped, a local load is applied to the stop surface of each component, which tends to cause deformation, resulting in poor durability.

[0013] In addition, since the existing bearing does not have an on / off switching function and operates only in one direction, when rotating the rotor in both directions, a separate device is provided around the one-way bearing. There is a problem that it is necessary.

For example, in the device disclosed in Japanese Unexamined Patent Publication No. 64-38963, a gear is fitted around the outer periphery of a one-way bearing to prevent rotation, and a locking claw of the gear is disengaged. Because of the possible engagement, the conventional device configured as described above has a problem that the configuration is complicated and a large space is required.

US Pat. No. 5,494,232 (registered on Feb. 27, 1996) discloses an apparatus for preventing reverse rotation of a fishing spinning reel. An example will be described with reference to FIG.

The reverse rotation preventing device disclosed in this patent includes an annular holder 109 rotatably fitted on a collar and a reel casting rotatably fixed to the annular holder 109. An annular outer frame 110, an annular holder 109 and a rolling member 107 held by the annular outer frame 110.

A guide slot 108 for accommodating the rolling members 107 is provided inside the annular holder 109. Each guide slot 108 has an opening 108 'at the bottom. The rolling member 107 accommodated in the guide slot 108 is configured to be partially exposed through the opening 108 'so as to come into contact with the collar.

The guide slot 108 has another opposed opening 108 ″, and the rolling member 107 contacts the inner surface of the annular outer frame 110 to perform a wedge action via the opening 108 ″. . A spring 111 for biasing the rolling member 107 is provided inside the guide slot 108 so that the rolling member 107 causes a wedge action on the collar.

According to the above configuration, the wedge action of the rolling member 107 is generated by the inner peripheral surface of the annular outer frame 110. More specifically, when the rolling member 107 is located in the concave portion 122 formed by the angular inner surfaces 121 and 123 of the annular outer frame 110, the collar can freely rotate forward and reverse. However, when the rolling member 107 is located at a position away from the recess 122, the rolling member 107 is brought into frictional contact with the collar to prevent reverse rotation. As described above, one rolling member 107 is housed between the two inner surfaces 121 and 123 of the annular outer frame 110. Therefore, in order to accommodate the four rolling members 107 in the reverse rotation preventing device, the inner peripheral surface of the annular outer frame 110 is formed in an octagon.

However, according to the reverse rotation preventing device shown in FIG. 9, considering the size of the reverse rotation preventing device mounted on the spinning reel and the left and right rotation of the annular holder 109, the annular outer frame 110 is not required. Since the inner peripheral surface cannot have a geometric shape of octagon or more, the number of rolling members 107 is limited to four.

In such a case, if one of the rolling members 107 is damaged, or if the function of the spring 111 for biasing the rolling member 107 is reduced, the collar is offset in that direction to prevent reverse rotation. Can not do.

Further, such a reverse rotation preventing device has a problem that the structure is complicated and the number of parts is large, so that the manufacturing cost is increased.

Accordingly, the present invention aims to solve the above-mentioned problems, and a main object thereof is to provide a fishing spinning reel with a one-way bearing having an on / off switching function.

[0024]

[Means for Solving the Problems]

 To achieve the above object, according to the present invention, in a one-way clutch bearing having an on / off switching function, a housing having an open side with one side open and a closed side with another side closed, An insert member having a plurality of rollers housed inside the housing, a plurality of retaining bars and a plurality of plate-like springs for holding the rollers, and a boss formed at an upper end of each retaining bar; A clutch lever having a plurality of circular slits respectively engaging with the boss, a protruding tab for performing the switching operation of the on / off switching function, and a cap for closing an open side surface of the housing. It is characterized by having.

An opening having a predetermined shape is provided on a side wall on an open side surface of the housing, and the tab of the clutch lever is protruded to the outside by opening this opening.

Further, a plurality of arc-shaped recesses are provided on the inner peripheral surface of the housing so that a plurality of rollers can slide and rotate. It is desirable that the arc-shaped recess be formed of a deeply inclined surface portion and a shallowly inclined surface portion.

[0027]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a one-way clutch bearing having an on / off switching function according to the present invention.

The one-way clutch bearing 20 of the present invention has a housing 22 having one side opened and the other side closed, an insert member 24 formed of synthetic resin, and a plurality (six in this embodiment) of rollers 34. , A clutch lever 36, a cap 44 for closing the open surface of the housing 22, and a bush 48 fitted into the inside of the bearing.

FIGS. 2 and 4 show the assembled state of the housing. With the housing 22 and the insert member 24 arranged coaxially, the roller 34 is located between the inner surface of the housing 22 and the insert member 24.

The insert member 24 includes a circular base 26 and a plurality of retaining bars 28 projecting upward from the circular base 26. The retaining bar 28 includes a plate-shaped spring 30 at an adjacent portion in the leftward direction when viewed from the center.

The retaining bar 28 has a boss 32 at an upper end thereof, which is housed in a circular slit 40 formed on the outer peripheral edge of the clutch lever 36. A cap 44 is forcibly engaged with the open side surface of the housing 22.

FIG. 5 is a schematic enlarged view of the insert member 24 of the one-way clutch bearing according to the present invention.

The insert member 24 is integrally formed of synthetic resin, and has a configuration in which six rollers 34 can be housed inside. Each roller 34 is held by a retaining bar 28 and a plate spring 30.

The clutch lever 36 is provided with a tab 38 that projects out of the housing opening 61 when housed in the housing 22. When the tab 38 moves left and right, the one-way clutch bearing 20 is turned on / off. The term "on state" used in the present application means that the one-way clutch bearing 20 rotates in one direction, that is, in the counterclockwise direction in FIG. The term "off state" means a state in which the one-way clutch bearing 20 can rotate in the forward and reverse directions.

Referring to FIG. 4, a plurality of rotatable arc-shaped recesses 62, 63; 62 ′, 63 ′; 62 ″, 63 ′, 63 ′ are formed on the inner surface of the housing 22. ing.

The shapes of the recesses 62 and 63 are formed so that the roller 34 housed therein is not detached by coupling with the insert member 24. More specifically, the recesses 62 and 63 are manufactured so as to be formed from the deeply inclined portion 62 and the shallowly inclined portion 63.

In FIG. 4, when the roller A is moved to the left by the clutch lever 36, the roller A is positioned at a fulcrum where the tab 38 of the clutch lever 36 is prevented from moving by the opening 61 of the housing 22. It should be noted that the roller A located at this fulcrum does not come into contact with the protrusion adjacent the deep portion 62 of the recess. Thus, roller A does not receive any pressure and can move in both directions.

The roller B moved to the right by the clutch lever 36 is located at the shallow recessed portion 63. When the roller B located at the fulcrum is rotated clockwise, it tends to further roll to the right along the recess due to the characteristics of the roller 34.

However, in this case, the movement is restricted by the bush 48 disposed in the middle of the clutch bearing 20. In other words, the counterclockwise rotation of the bush 48 is momentarily stopped by the six rollers.

In each case, leaf spring 30 eliminates the tendency to move roller 34 to the left or right. In addition, the tab 61 of the clutch lever 36 connected to the boss 32 of the insert member 24 is restricted from moving to the left or right by the opening 61 of the housing 22, so that the movement of the insert member 24 is restricted. . Therefore, the movement of the roller 34 is also limited.

Referring to FIG. 4, the ON state of the clutch bearing 20 will be described in more detail. In the drawing, the roller 34 of the clutch bearing 20 in the OFF state is indicated by reference numeral A.

The roller A is located at the deep portion 62 of the recess with the left side not in contact with the protrusion of the recess and the right side pressed by the retaining bar 28 of the insert member 24.

Since the roller A is located at the deep portion 62 of the recess, the portion protruding into the bearing is small. Therefore, when a clockwise rotation force is applied to the roller A, the roller A maintains the tendency to roll while pressing the plate spring 30, so that clockwise rotation is possible. When a counterclockwise rotational force is applied to the roller A, the roller A rotates while the plate spring 30 is pushed backward by the rolling movement of the roller A. That is, the roller A is rotatable in both directions when located at the deep portion 62 of the recess.

On the other hand, the roller 34 in the ON state is indicated by reference numeral B. When a counterclockwise rotational force is applied to the roller B, the roller B rolls toward the deep portion 62 of the recess. At this time, since the plate-shaped spring 30 on the left side is pushed rearward, the roller B can rotate. However, when a counterclockwise rotational force is applied, the roller B tends to roll to the right and thus moves beyond the shallow portion 63. However, no further rolling movement is possible due to the bush 48 disposed in the intermediate portion of the clutch bearing 20. Therefore, the roller B cannot rotate clockwise.

That is, the one-way clutch bearing 20 can easily switch between an off state in which forward rotation and reverse rotation can be performed and an on state in which only forward rotation can be performed.

The one-way clutch bearing 20 of the present invention is characterized in that forward rotation is performed lightly because the length of the plate spring 30 of the insert member 24 is long and the tension is weak.

Since the one-way clutch bearing 20 of the present invention is manufactured as a single assembly, it can be easily installed on a spinning reel or the like. An example of the application is shown in FIG. FIG. 7 is a sectional view showing the spinning reel 100 in which the main shaft 110 and the pinion shaft 114 are coaxially connected.

The illustrated spinning reel 100 includes a main body 102, a handle assembly 104 connected to the main body 102, a rotor 106 rotatably connected to the front of the main body 102, and a spool unit 108 that reciprocates back and forth. Have. The one-way clutch bearing 20 according to the present invention is preferably formed on the pinion shaft 114.

According to the above-described configuration, when the pinion shaft 114 is rotated by the rotation of the handle assembly 104, the rotational force is transmitted to the main shaft 110 connected thereto. The pinion shaft 114 rotates the rotor 106 and also rotates the worm gear 112. The rotor 106 connected to the front of the main body 102 of the spinning reel 100 reciprocates by the rotation of the worm gear 112.

As described above, the one-way clutch bearing 20 according to the present invention can be easily switched on or off by operating a stopper lever (not shown), and is applied to the spinning reel 100 as a single assembly. It has the advantage of being able to.

Therefore, as can be seen from FIG. 7, since the one-way clutch bearing 20 of the present invention is applied to the pinion shaft 114, the bearing 20 shortens the distance between the stopper lever and the stopper located on the outer surface of the main body 102. be able to.

Such a reduction in the distance can affect components arranged between the stopper lever and the bearing 20. That is, the design flexibility of the spinning reel 100 to which the bearing 20 of the present invention is applied is greatly improved.

In addition, the on / off function of the one-way clutch bearing 20 according to the present invention is ensured with a simple configuration. Further, since the plate-shaped spring 30 of the insert member 24 is long, the tension applied to the roller 34 is kept low.

FIG. 6 shows a modification of the one-way clutch bearing according to the present invention. According to this modification, the protrusion 138 of the insert member 28 'projects outside through the arc-shaped opening 161 formed on one side surface of the housing 22'. The protrusion 138 can rotate the insert member 28 '.

Needless to say, the same effect as the one-way clutch bearing shown in FIG. 1 can be obtained also in the one-way clutch bearing 20 shown in FIG.

[0056]

[Effect of the invention]

 According to the one-way clutch bearing of the present invention configured as described above, an on / off switching function is provided with a simple configuration, and particularly when the device is employed in a device for preventing reverse rotation of a spinning reel, it is possible to prevent reverse rotation. In this case, braking can be surely performed instantaneously.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a one-way clutch bearing according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating the assembled state of the one-way clutch bearing according to the preferred embodiment of the present invention.

FIG. 3 is a longitudinal sectional view showing an assembled state of the one-way clutch bearing according to the preferred embodiment of the present invention;

FIG. 4 is a plan view of the housing as viewed from above.

FIG. 5 is an enlarged perspective view of an insert member.

FIG. 6 is a sectional view showing a modification of the one-way clutch bearing according to the present invention.

FIG. 7 is a schematic cross-sectional view of a spinning reel to which the one-way clutch bearing according to the present invention is applied.

FIG. 8 is a view showing a conventional reverse rotation preventing device for a spinning reel.

FIG. 9 is a view showing a conventional reverse rotation prevention device for a spinning reel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Bearing 22 Housing 24 Insert member 28 Retaining bar 30 Plate spring 34 Roller 36 Clutch lever 38 Tab 61 Opening 62, 63 Arc-shaped recess 100 Spinning reel

Claims (8)

[Utility model registration claims] 1. A one-way clutch bearing having an on / off switching function, a housing having an open side with one side open and a closed side with another side closed, and a plurality of housings housed inside the housing. Rollers, holding these rollers, comprising a plurality of retaining bars and a plurality of plate-like springs, an insert member having a boss formed at the upper end of each retaining bar, and a plurality of engaging members respectively engaging with the boss A one-way clutch bearing, comprising: a clutch lever having a circular slit, a tab protruding for performing a switching operation of the on / off switching function, and a cap for closing an open side surface of the housing. . 2. The one-way clutch bearing according to claim 1, wherein the housing is provided with an opening on a side wall on an open side surface for projecting a tab of the clutch lever to the outside. 3. The one-way clutch bearing according to claim 1, wherein the housing has a plurality of arc-shaped recesses on an inner peripheral surface. 4. The one-way clutch bearing according to claim 3, wherein said arc-shaped recess comprises a surface part having a deep slope and a surface part having a shallow slope. 5. The one-way clutch bearing according to claim 1, further comprising a bush slidingly contacting said roller. 6. The one-way clutch bearing according to claim 1, wherein said insert member is formed of a synthetic resin. 7. A one-way clutch bearing having an on / off switching function, comprising: a housing having an arc-shaped opening on one side surface; a plurality of rollers housed inside the housing; A one-way clutch bearing comprising: a plurality of retaining bars; a plurality of plate-shaped springs; and an insert member having a protruding portion protruding outside through an arc-shaped opening of the housing. 8. The one-way clutch bearing according to claim 1, wherein the one-way clutch bearing is applied to a pinion shaft of a spinning reel.