Torque responsive rotation control device

摘要

A torque responsive rotation control device includes a torque limiting mechanism interposed between an input rotary member and an output shaft coaxial with the input rotary member. The torque limiting mechanism includes a torque cam engageable with the output shaft to rotate together therewith and movable axially relative to the output shaft and detachably engageable with the input rotary member in a direction of rotation thereof; and a plurality of springs for biasing the torque cam in a direction required for the torque cam to engage the input rotary member.