| 摘要 |
The invention relates to a friction clutch device (10) that comprises a reaction plate (22) mounted so as to be capable of rotation about an axis (B) through a bearing (24), and at least a first actuation rear coaxial annular diaphragm (56) that comprises fingers (60) which are flexible between a front extreme clutching position in which the first diaphragm (56) axially urges a first pressure plate (46) for clamping a first friction disc (52) against the reaction plate (22), and a rear extreme declutching position towards which the fingers (60) are elastically returned, characterised in that in the rear extreme position, the fingers (60) bear against a fixed non-deformable mechanical member (96, 98) for applying towards the front a first axial preload effort on said bearing (24) via the reaction plate (22). |
