JPH0624242U - One way clutch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a one-way clutch that can improve lubricity and assembly. [Structure] A plurality of engaging members 1 are held by an annular cage 2 and a spring 3 and are arranged between an inner ring 5 and an outer ring 6,
A pair of annular end bearings 7 and 8 on both sides of the cage 2.
To provide. A pair of retainer washers 10, which are fitted on both sides of the outer ring 6 and hold a pair of end bearings 7, 8.
The notch portions 10a and 110a that expose the joints between the end bearings 7 and 8 and the outer ring 6 are provided in 110.
The retainer washer 110 is provided with a protrusion 110b that is raised so as to form a side surface of the cutout 110a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a one-way clutch with improved lubricity and assembly.

[0002]

[Prior art]

 Conventionally, as a one-way clutch of this type, as shown in FIGS. 5 and 6, a plurality of engaging members 51, 51, ... Are held by an annular cage 52 and a spring 53, and an inner ring 55 and an outer ring 56 are held. And a pair of annular end bearing rings 57 and 58 are provided on both sides of the retainer 52. The one-way clutch includes a pair of retainer washers 60, 61 fitted on both sides of the outer ring 56 and holding the pair of end bearings 57, 58.

The one-way clutch transmits the rotational force from the inner ring 55 to the outer ring 56 only when the inner ring 55 rotates in a predetermined direction with respect to the outer ring 56.

[0004]

[Problems to be solved by the device]

 By the way, in the one-way clutch of this type, the lubricating oil is supplied from the inner ring 55 side, and passes through the surface of the engaging member 51 and the like from the joint between the end bearings 57 and 58 and the outer ring 56. It is supposed to be discharged.

However, in the conventional one-way clutch, the retainer washer 60, 61 covers the joint between the pair of end bearings 57, 58 and the outer ring 56, and thus the retainer washer 60. However, there is a problem in that the lubrication oils 61 and 61 delay the flow of the lubricating oil discharged from the joint, leading to poor lubrication.

Further, in the conventional one-way clutch, since the pair of retainer washers 60 and 61 have the same shape, it is not possible to determine the idling direction of the one-way clutch from the appearance, and the one-way clutch is used in the transmission or the like. There is also a problem that it is difficult to determine the assembly direction when assembling, mistakes are easily made in the assembly direction, and assembly workability is poor.

Therefore, an object of the present invention is to provide a one-way clutch that can improve lubricity and assembly workability.

[0008]

[Means for Solving the Problems]

 To achieve the above object, the one-way clutch of the present invention has a plurality of engaging members held by an annular retainer and a spring and arranged between an inner ring and an outer ring, and a pair of engaging members are provided on both sides of the retainer. In the one-way clutch provided with the annular end bearings, the joint between the end bearing and the outer ring is exposed to the pair of retainer washers fitted on both sides of the outer ring and holding the pair of end bearings. It is characterized by having a notch.

Further, it is desirable that one of the retainer washers is provided with a protrusion formed by being formed so as to form a side surface of the cutout portion.

[0010]

[Action]

 According to the above configuration, the retainer washer is provided with the cutout portion that exposes the joint between the end bearing and the outer ring, so that the lubricating oil is easily discharged from the joint and the lubricity is improved. It

Further, when the protrusion is provided on one of the retainer washers, the directionality of the one-way clutch can be easily judged from the appearance by the retainer washer with the protrusion. Therefore, it is possible to prevent an error in the direction of assembling to the transmission, etc., and the assembling workability is remarkably improved.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to illustrated embodiments.

FIG. 1 shows a first embodiment of the one-way clutch of the present invention. In the first embodiment, sprags 1, 1, ... As a plurality of engaging members are held by an annular cage 2 and a ribbon spring 3 and are arranged between an inner ring 5 and an outer ring 6. Further, a pair of annular end bearings 7 and 8 are provided on both sides of the cage 2.

Further, in the one-way clutch, a pair of retainer washers 10 and 11 for holding the pair of end bearings 7 and 8 are fitted on both sides of the outer ring 6. The pair of retainer washers 10, 11 are provided with notches 10a, 10a ... And 11a, 11a, ... That expose the joint between the end bearings 7, 8 and the outer ring 6.

The one-way clutch transmits the rotational force from the inner ring 5 to the outer ring 6 only when the inner ring 5 rotates in a predetermined direction with respect to the outer ring 6.

In the one-way clutch, lubricating oil is supplied from the inner ring 5 side and discharged from the joint between the end bearings 7 and 8 and the outer ring 6 via the surface of the slug 1 and the like. It is supposed to be done.

In the above one-way clutch, the pair of retainer washers 10, 11 are provided with notches 10a, 10a ... And 11a, 11a, ... That expose the joint between the end bearings 7, 8 and the outer ring 6. The lubricating oil is easily discharged from the joint, and the lubricity is remarkably improved.

Further, when the retainer washer 11 is not provided with the cutout portions 11a, 11a, ... And only the retainer washer 10 is provided with the cutout portions 10a, 10a ,. The retainer washer 10 makes it possible to determine the directivity of the one-way clutch from the appearance. Therefore, in this case, it is possible to prevent an error in the mounting direction to the transmission and the like, and improve the mounting workability.

Next, a second embodiment of the present invention is shown in FIGS. The second embodiment is different from the first embodiment only in that a retainer washer 110 is provided instead of the retainer washer 11 of the first embodiment shown in FIGS. Therefore, in the second embodiment, the retainer washer 110 will be mainly described.

The retainer washer 110 is provided with notches 110a, 110a, ... That expose the joint between the end bearing 8 and the outer ring 6.

Further, triangular plate-shaped projections 110b, 110b, ... Formed by forming the material of the retainer washer are formed so as to form the side surfaces of the notch 110a of the retainer washer 110.

As described above, in the one-way clutch of the second embodiment, since the retainer washer 110 on one side is provided with the protrusions 110b, 110b ..., By the retainer washer 110 with the protrusion 110b, The direction of assembly can be easily judged from the appearance. Therefore, according to the above-described embodiment, it is possible to prevent an error in the assembling direction to the transmission or the like, and to significantly improve the assembling workability.

Further, when it is attempted to assemble the one-way clutch to the transmission or the like in the wrong mounting direction, the protrusion 110b hits a component included in the transmission or the like, and the one-way clutch is changed to the gear shift. If it cannot be installed in a machine, etc., it can completely prevent mistakes in the assembly direction.

Further, according to the above embodiment, the retainer washer 110 is the same part as the other retainer washer 10 before the triangular plate-shaped protrusions 110b, 110b are formed. The cost can be reduced in terms of parts management.

[0025]

As is apparent from the above, in the one-way clutch of the present invention, the retainer washer is provided with the cutout portion that exposes the joint between the end bearing and the outer ring. It can be easily discharged, and the lubricity can be improved.

When one of the retainer washers is provided with a protrusion that is formed so as to form the side surface of the notch, the retainer washer with the protrusion causes the one-way clutch to move in the direction of the one-way clutch. The appearance can be easily judged. Therefore, it is possible to prevent mistakes in the mounting direction of the one-way clutch to the transmission, etc., and the assembly workability can be significantly improved.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of a one-way clutch according to the present invention.

FIG. 2 is a half sectional view of the first embodiment.

FIG. 3 is a plan view of a second embodiment of the one-way clutch of the present invention.

FIG. 4 is a half sectional view of the second embodiment.

FIG. 5 is a plan view of a conventional one-way clutch.

FIG. 6 is a half sectional view of a conventional one-way clutch.

[Explanation of symbols]

1 ... Sprag, 2 ... Retainer, 3 ... Ribbon spring, 5
... inner ring, 6 ... outer ring 7,8 ... end bearings 10,11,110 ... retainer washers 10a, 11a, 110a ... notches, 110b ... protrusions.

Claims (2)

[Scope of utility model registration request] 1. A one-way clutch in which a plurality of engaging members are held by an annular retainer and a spring and are disposed between an inner ring and an outer ring, and a pair of annular end bearings are provided on both sides of the retainer. In the above, a pair of retainer washers fitted to both sides of the outer ring and holding the pair of end bearings are provided with notches for exposing a joint between the end bearing and the outer ring. Directional clutch. 2. The one-way clutch according to claim 1, wherein only one of the retainer washers is provided with a protrusion that is formed so as to form a side surface of the cutout portion.