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One-way clutch

A one-way clutch, axial technology, applied in the direction of one-way clutches, clutches, mechanical equipment, etc., can solve the problems of wear and hinder the smooth engagement of one-way clutches, so as to reduce the contact area, reduce friction, and prevent tilting. Effect

Active Publication Date: 2015-07-22
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, even if an axial spring is provided to prevent the inclination of the roller, if the roller inclines slightly while moving from the damping position to the reference position, the outer peripheral portion of the second end surface of the roller may rub against the side of the cage, and the roller may The reference position is inclined to prevent the smooth engagement of the one-way clutch, or the outer peripheral part of the second end surface of the roller scrapes against the side surface of the cage to cause wear

Method used

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Examples

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no. 1 Embodiment approach

[0043] Below, according to Figure 1 to Figure 11 , the first embodiment of the present invention will be described.

[0044] Such as Figure 1 ~ Figure 3As shown, the vehicle power transmission device that transmits the driving force of the engine E to the drive wheels W, W via left and right axles 10 , 10 includes a crank-type continuously variable transmission T and a differential D. The continuously variable transmission T of this embodiment is obtained by stacking a plurality of (four in the embodiment) power transmission units U having the same structure in the axial direction, and these power transmission units U have a common input that is arranged in parallel. The shaft 11 and the common output shaft 12, the rotation of the input shaft 11 is transmitted to the output shaft 12 after being decelerated or accelerated.

[0045] Next, based on Figure 2 ~ Figure 6 , the structure of the continuously variable transmission T will be described.

[0046] First, the configu...

no. 2 Embodiment approach

[0077] Next, according to Figure 12 and Figure 13 , and the second embodiment of the present invention will be described.

[0078] In the first embodiment, the convex portion 36c protruding from the second side surface 36b has a circular shape, whereas in the second embodiment, the convex portion 36c protruding from the second side surface 36b has an annular shape. The radius R1 of the annular convex portion 36c is the same as that of the first embodiment. Furthermore, an oil supply passage 36d formed inside the inner member 23 opens at the center of the annular convex portion 36c, and oil from an oil pump (not shown) is supplied to the center of the convex portion 36c through the oil supply passage 36d.

[0079] According to the present embodiment, the contact area with the second end surface 25b of the roller 25 is reduced by forming the convex portion 36c in an annular shape. The difference in friction acting between the axial spring 38 and the first end surface 25a is...

no. 3 Embodiment approach

[0082] Next, according to Figure 14 , the third embodiment of the present invention will be described.

[0083] The third embodiment is an improvement of the above-mentioned first embodiment. The convex portion 36c of the first embodiment is circular. In contrast, the convex portion 36c of the third embodiment has a long diameter along the moving direction of the roller 25 (that is, the outside Circumferential direction of piece 23) oval shape. The major diameter D2 of the ellipse is the same as the diameter D1 of the circular convex portion 36c in the first embodiment, and the minor diameter D3 of the ellipse is smaller than the diameter D1.

[0084] According to the present embodiment, the convex portion 36c of the second side surface 36b is an elliptical shape whose long diameter is along the moving direction of the roller 25, therefore, it is similar to the circular convex portion 36c having the same diameter D1 as the long diameter D2 (refer to the first Compared with ...

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Abstract

Provided is a one-way clutch which prevents being engaged into a side face of a cage shelf by the outer peripheral part of an end face of a roller, applying a force in the axial direction, of an axial spring. A second side face (36b) of a cage shelf (31) of the one-way clutch (21) is provided with a convex part (36c) protruding to a first side face (36a), and, when a roller (25) is located between an attenuation position and a reference position, the a convex part (36c) of the second side face (36b) abuts against a second end face (25b) at the inner side of the outer circumference of the second end face (25b) of the roller (25), so the roller tilts in the process of movement from the attenuation position to the reference position, the outer circumference of the second end face (25b) of the roller (25) and the second side face (36b) can be prevented from scratching to enable the roller (25) to tilt at the reference position, smooth engagement of the one-way clutch (21) can be performed, and the outer circumference of the second end face (25b) of the roller (25) and the convex part (36c) can be prevented from scratching and then from abrasion.

Description

technical field [0001] The present invention relates to a one-way clutch that urges a plurality of rollers held in a cage arranged between an outer peripheral surface of an inner member and an inner peripheral surface of an outer member in a circumferential direction by using an engaging spring, and using the inner member and the Relative rotation of the outer member in one direction causes the roller to engage between the outer peripheral surface and the inner peripheral surface to transmit a driving force. Background technique [0002] According to the following Patent Document 1, it is known that a coil spring is used to form an engaging spring that urges the rollers of the one-way clutch in the circumferential direction, and a protruding portion that restricts the axial displacement of the coil spring is provided in a cage holding the rollers, As a result, the posture of the coil spring is stabilized, and the rollers are prevented from being bitten between the inner ring...

Claims

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Application Information

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IPC IPC(8): F16D41/06
Inventor 佐藤哲佐佐木彰彦牧美里大图达也
Owner HONDA MOTOR CO LTD
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