A RETURN SPRING ASSEMBLY OF CIRCUIT BREAKER FOR IMPROVEMENT OF MECHANICAL ENDURANCE

摘要

The present invention relates to a return spring assembly for preventing fracture. The present invention provides the return spring assembly for preventing fracture which adapts a coupling unit having durability despite a repetitive weight to repeat an injection state and an injection standby state of a mechanism so that a return spring can have durability without being fractured in case of an operation.