JP2568047Y2 - One-way clutch bearing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-way clutch bearing, and more particularly to a one-way clutch bearing having a reverse rotation function by using a position adjusting tool of a bearing holder.

[0002]

2. Description of the Related Art Generally, a one-way clutch bearing functions as a bearing when rotating in one direction, and when the bearing is to be reversed, the outer peripheral side and the inner peripheral side of the bearing are fixed to each other. Functions as a clutch. The one-way clutch bearing is widely used as a member that fulfills such functions as office equipment, daily necessities such as fishing reels, and parts of industrial machinery.

[0003]

However, for example, in the case of repairing office equipment, if it becomes necessary to reverse the rotation of a rotating shaft such as a sleeve fitted to a one-way clutch bearing, conventionally, once the equipment is once removed. Unless the work such as disassembly and removal of the one-way clutch bearing from the sleeve is performed, the one-way clutch bearing cannot be reversed, which is very inconvenient.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a one-way clutch bearing which can be reversely rotated by using an adjusting tool for adjusting the position of a bearing holder. The purpose is.

[0005]

In order to achieve the above object, according to the present invention, a plurality of notches for moving a bearing are formed on an inner wall of a bearing cover, and a notch for positioning a holder is formed on an upper portion of the bearing cover. On the bearing cover, a bearing holder provided with a large number of roller housings is mounted, and inside each of the roller housings,
In the one-way clutch bearing for accommodating the roller in contact with the notch for movement, a support spring for pressing the outer peripheral portion of the roller in one direction is provided in each roller accommodating portion, and a guide protruding piece facing the support spring is provided. And forming a projection on the upper surface of the bearing holder to engage with the notch for positioning the holder, and releasing the engagement between the notch for positioning the holder and the notch for positioning the bearing cover so that An adjusting tool for moving a relative position with respect to the bearing holder is attached.

[0006]

In such a one-way clutch bearing, when the notch for positioning the holder of the bearing cover mutually engaged by the adjusting tool and the projection of the bearing holder are released in a state where the reverse rotation is prevented,
The bearing holder is rotatable relative to the bearing cover. Then, when the bearing holder is rotated with respect to the bearing cover, the rollers accommodated in the roller accommodating portion of the bearing holder along the guide protrusions facing the support springs are cut by the moving of the bearing cover contacting the rollers. And the contact pressure between the roller and the sleeve changes. This allows the one-way clutch bearing to be changed from a one-way clutch state to an unclutched state, or vice versa.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded partial cross-sectional perspective view showing an embodiment of a one-way clutch bearing according to the present invention, FIG. 2 is a partial vertical cross-sectional view of the one-way clutch bearing of FIG. 1, and FIG. FIG. 4 is a partial cross-sectional view for explaining a state in which the position of the bearing holder has been moved.

As shown in FIG. 1, the one-way clutch bearing has a bearing cover 1, and an inner wall 1a of the bearing cover 1 has rollers 7 described later.
Are formed. At the upper end of the bearing cover 1, holder positioning notches 3, which are rectangular recesses, are formed at predetermined intervals.

As shown, a bearing holder 4 having a plurality of roller housing portions 5 is mounted on the bearing cover 1 having such a shape, and a roller 7 is provided in each of the roller housing portions 5. Is housed. In addition, each roller housing 5
Is provided with a support spring 6 that elastically contacts the outer peripheral portion of the roller 7 and supports the roller 7. On the other hand, on the periphery of the upper end surface of the bearing holder 4, projections 4a formed at predetermined intervals are formed. By engaging the projection 4a with the holder positioning notch 3 of the bearing cover 1, the bearing cover 1 and the bearing holder 4 are positioned relative to each other. Further, on the upper end surface of the bearing holder, an adjusting tool 8 used for adjusting the relative position between the bearing cover 1 and the bearing holder 4 is formed. 1, 3 and 4, reference numeral "9" is a reference numeral indicating a guide protruding piece, which will be described later, and reference numeral "10" is a reference numeral indicating a sleeve that rotates relative to the bearing cover 1. is there.

Next, the operation of the one-way clutch bearing configured as described above will be described.

As described above, the one-way clutch bearing according to the present invention, when applied to office equipment, fishing reels or certain types of industrial equipment, can rotate in only one direction and operate the clutch in one direction. When a function to prevent reverse rotation is required, it is used as a general one-way clutch bearing.

That is, when rotating in one direction, the rollers 7
Is housed in a state of being enclosed by a notch for movement 2 formed in the inner wall 1a of the bearing cover 1 and a roller housing portion 5 formed in the bearing holder 4, and can be rolled freely on the surface on the rotating side. And functions as a bearing roller. On the other hand, if the roller 7 is to be reversed, the roller 7 slides on the inner wall 1 of the bearing cover 1.
The contact between the surface of the notch 2 for movement a and the guide projection 9 formed inside the bearing holder 4 is pressed by the sleeve 10 located inside the bearing. That is, at the time of the reverse rotation, the sleeve 10 comes into close contact with the roller 7, the rolling of the roller 7 is prevented, and the sleeve enters the clutch state.

In the state where the reverse rotation is prevented, the engagement between the protrusion 4a of the bearing holder 4 and the holder positioning notch 3 formed in the bearing cover 1 is performed by using the adjusting tool 8 of the bearing holder 4. When the bearing is released and the bearing holder 4 is moved by a predetermined angle, the rollers 7 accommodated in the roller accommodating portions 5 of the bearing holder 4 move along the guide projections 9 inside the bearing holder 4,
The contact with the sleeve 10 is released. As a result,
The clutch will be released, and the sleeve 10 will be in a state where it can be reversed. That is, this allows the one-way clutch bearing to be changed from the one-way clutch state to the unclutched state, or vice versa.

On the other hand, the roller 7 accommodated in the roller accommodating portion 5 in the bearing holder 4 is pressed by a support spring 6 for adjusting elasticity toward the inside where the clutch operation of the bearing holder 4 is performed, and is stable. It is supported smoothly and securely in the state where it is set.

That is, a support spring 6 for pressing the outer peripheral portion of the roller 7 in one direction is provided in the roller housing portion 5, and a guide projection 9 opposed to the support spring 6 is formed.
A projection 4a is formed on the upper surface of the bearing holder 4 to engage with the holder positioning notch 3, and the engagement between the projection 4a and the holder positioning notch 3 is released to allow the bearing cover 1 and the bearing holder 4 to be engaged. By attaching the adjusting tool 8 for moving the relative position of the one-way clutch bearing, the one-way clutch bearing can be reversed, and when repairing office equipment, fishing reels and industrial machinery,
When reverse rotation is required, a rotating shaft such as a sleeve can be reversely rotated without dismantling equipment in which the one-way clutch bearing is used.

As described above, the present invention in which the one-way clutch bearing which functions as a bearing when rotating in one direction and which functions as a clutch for preventing rotation during reverse rotation, can be reversely rotated by changing the position of the bearing holder. This facilitates the reversal work that occurs during repair or reversal adjustment, and is extremely useful in industry.

[0017]

As described above, according to the present invention, the engagement between the holder positioning notch and the protrusion of the bearing holder, which are engaged with each other by the adjustment tool, is performed in the state where the reverse rotation is prevented. When released, the bearing holder becomes rotatable relative to the bearing cover. Then, when the bearing holder is rotated with respect to the bearing cover, the rollers accommodated in the roller accommodating portion of the bearing holder along the guide protrusions facing the support springs are cut by the moving of the bearing cover contacting the rollers. And the contact pressure between the roller and the sleeve changes. Thereby, it becomes possible to rotate the rotating shaft such as the sleeve in a direction in which the clutch cannot be reversed. Therefore, it is possible to easily perform the reversing operation of the rotating shaft that occurs at the time of repair or the reverse rotation adjustment.

[Brief description of the drawings]

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

FIG. 2 is a partial longitudinal sectional view of the one-way clutch bearing of FIG.

FIG. 3 is a partial cross-sectional view of the one-way clutch bearing of FIG. 1;

FIG. 4 is a partial cross-sectional view for explaining a state in which a position of a bearing holder is moved.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bearing cover, 1a ... Inner wall, 2 ... Notch for movement, 3 ... Notch for holder positioning, 4 ... Bearing holder, 4a ... Projection part, 5 ... Roller accommodation part, 6 ... Support spring, 7 ... Roller, 8 ... Adjustment Utensils.

Claims (1)

(57) [Scope of request for utility model registration] 1. An inner wall (1a) of a bearing cover (1).
And forming a large number of cuts for movement of the bearing (2), the upper portion cut holder positioning of the bearing cover (1) to form a (3), wherein the bearing cover (1), a number of rollers accommodating portion (5 ) Is provided
A roller (7) which is fitted with a cutting holder (4) and is in contact with the notch for movement (2) inside each of the roller accommodating portions (5).
In the one-way clutch bearing for accommodating the roller, a support bar for pressing the outer peripheral portion of the roller (7) in one direction is provided on each roller accommodating portion (5).
And a support spring (6).
That guides to form a protrusion (9), and wherein the upper surface of the bearing holder (4), to form a projecting portion (4a) for engaging the holder notches for positioning (3), the protrusion (4a ) And an adjustment tool (8) for disengaging the holder positioning notch (3) and moving the relative position between the bearing cover (1) and the bearing holder (4). One-way clutch bearing.