Clutch Limiting Mechanism Prevents Cam Ring Overadjustment

The patent applies preliminary anti-action by introducing a limiting mechanism that prevents the cam rings from over-adjusting in response to sudden impacts. The limiting mechanism includes a stop member that physically restricts the maximum rotation of the cam rings, thereby counteracting the harmful effect of impact-induced overadjustment before it can occur. This allows the self-adjusting feature to operate normally during gradual wear while preventing catastrophic failure during sudden shocks.

The patent applies preliminary action by pre-positioning a stop member that defines the maximum rotation limit of the cam rings before any impact occurs. This stop member is integrated into the clutch assembly during manufacturing, ensuring that when sudden impacts do occur, the cam rings are already constrained and cannot jump beyond the predetermined safe rotation angle. This preliminary constraint maintains reliable friction contact during normal wear compensation while preventing lifespan-reducing overadjustment.

The patent applies self-service by implementing a self-adjusting mechanism where cam rings automatically rotate to compensate for wear between the pressure plate and driven member. This eliminates the need for manual intervention to adjust clutch components, as the system monitors and corrects its own wear automatically during operation. The limiting mechanism ensures this self-adjustment process is safe and prevents overcorrection, thereby maintaining precision while eliminating maintenance downtime.