Clutch friction plate and clutch device

Abstract

Provided are a clutch friction plate and a clutch device with which adhesion torque can be reduced and gear engagement, gear changing, and shift into neutral can be carried out smoothly. The clutch device (100) is equipped with a clutch friction plate (101). The clutch friction plate (101) comprises a flat plate-shaped annular core metal (102) on the surface of which multiple friction materials (103) shaped as small pieces are attached in a radiating manner with oil grooves (105) therebetween. The friction materials (103) are each formed in a rectangular shape having an outer side (104a) facing the outer edge of the core metal (102) and an inner side (104b) facing the inner edge of the core metal (102) and extending parallel to the outer side (104a). The friction materials (103) are attached to the core metal (102) in such a manner that the outer side (104a) and the inner side (104b) are inclined through an inclination angle ([theta]) with respect to an orthogonal line (CL) that is orthogonal to a straight line (OL) connecting the center (O1) of the core metal (102), which is the center of rotation of the clutch friction plate (101), and the center (O2) of each friction material (103).

Description

technical field [0001] The present invention relates to a clutch friction plate in a clutch device for transmitting and disconnecting a rotational driving force of a driving shaft to a driven shaft, and a clutch device including the clutch friction plate. Background technique [0002] Generally, in a vehicle such as a four-wheeled automobile or a motorcycle, a multi-plate clutch device is used to transmit or disconnect the driving force of a prime mover such as an engine to a passive body such as a wheel. The multi-plate clutch device transmits the driving force of the prime mover to the passive body by pushing multiple annular plate-shaped clutch plates against or away from the same multi-plate annular plate-shaped clutch friction plates driven by the prime mover. or disconnect. For example, Patent Document 1 below discloses a multi-plate clutch device for a motorcycle, which includes clutch plates on which a plurality of square friction members are adhered in an annular s...

AI Technical Summary

Problems solved by technology

[0006] However, in the multi-plate clutch device described in Patent Document 1, because of the clutch oil interposed between the clutch friction plate and the clutch plate, the clutch friction plate and the clutch plate will rotate relative to each other from the start to complete relative rotation. There is a huge viscous moment between them, and there is a problem that it is difficult to carry out gear shifting, gear shifting and neutral gear smoothly.

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