CIRCUIT BREAKER MOTOR OPERATOR VARIABLE DRIVE COUPLING APPARATUS

摘要

41PR-6122 CIRCUIT BREAKER MOTOR OPERATOR VARIABLE DRIVE COUPLING APPARATUS Apparatus drivingly couples a rotary motor operator mechanism to a reciprocating circuit breaker operator member such as to provide a braking zone intermediate the end of an operating member charging stroke during which the deactivated motor operator mechanism is brought to a stop without disturbing the operator member in its home position. Apparatus includes a latch for latching the operator member in its home position during the braking zone and a link assembly constructed to accommodate shortening of its effective drive length while a spring absorbs the kinetic energy of the motor operator mechanism. By the conclusion of the braking zone, the operator member is unlatched from its home position, and the spring discharges to propel the operator member to its return stroke while re-establishing the full effective driving length of the link assembly, thereby rendering the operator member charging and return stroke lengths equal.