Clutch Drive Device Abutment Structure Reducing Actuator Load

A line of action adjustment mechanism (including guide pins, adjustment pins, or cam surfaces) is introduced as an intermediary between the compression coil spring and the solid of revolution. This mechanism adjusts the line of action of the spring force to pass through or near the rotation center of the solid of revolution during clutch disengagement, eliminating the reverse assisting force while preserving the assisting force benefit.

The line of action of the spring force is dynamically adjusted based on the rotation angle of the solid of revolution. By changing the geometric parameters (position of guide pins, orientation of cam surfaces) according to the operational phase, the spring force transitions from creating reverse assisting force in the play area to providing pure assisting force during disengagement.

The function of the canceling spring is extracted and integrated into the line of action adjustment mechanism. Instead of adding a separate canceling spring component, the geometric adjustment mechanism redirects the existing spring force to simultaneously eliminate the reverse assisting force effect, thereby removing the need for additional spring components.

The line of action adjustment mechanism serves multiple functions: it guides the spring force to eliminate reverse assisting force, maintains the assisting force during disengagement, and simplifies the overall structure by replacing what would traditionally require separate canceling springs with a single integrated geometric solution.