PURPOSE: To obtain a circuit breaker operating device of large spring force, high voltage, and large capacity by providing a connecting mechanism that includes both an abutting connecting portion which puts an energy storage shaft in a turning movement in the direction in which a closing spring is pushed by the turning movement of a drive member caused by a driving device and a non-connecting portion which puts the energy storage shaft in a turning movement through the release of a locking device while not in connection with the drive member.
CONSTITUTION: A connecting mechanism 14 is formed in a portion where an energy storage shaft 15 to which a closing spring 5 is connected and a drive member which is disposed on almost the same axis as the energy storage shaft 15 and to which a driving device 38 for providing a force to push the closing spring is connected are opposite to each other. The connecting mechanism 14 is provided with both an abutting connecting portion which puts the energy storage shaft 15 in a turning movement in the direction in which the closing spring 5 is pressed by the turning movement of the drive member caused by the driving device 38 and a non-connecting member which puts the energy storage shaft 15 in a turning movement through the release of a locking device 37 while not in connection with the drive member. Sufficient mechanical strength can thus be obtained even with reduction of the diameter of the connecting mechanism 14 and the spring force of the closing spring can be increased using a small connecting mechanism.
TANAKA TOYOICHI
YAMAMOTO NAOYUKI
