Self-adjusting friction clutch for use in motor vehicle, has spindle device driven by pinion that is in engagement with drive ratchet, where pinion is automatically detached from drive ratchet based on rotational speed of pinion

摘要

The clutch (1) has a ramp ring (12) arranged between a lever spring (6) and a pressing plate (4). A ramp device is formed by the ramp ring and the pressing plate to alter an axial spacing of contact regions between the pressing plate and the lever spring with the rotation of the ramp ring by a spindle device (16) in a circumferential direction relative to the pressing plate. The spindle device is driven by a pinion (17) that is in engagement with a cover-fixed drive ratchet (18), where the pinion is automatically detached from the drive ratchet based on the rotational speed of the pinion.