| 摘要 |
PROBLEM TO BE SOLVED: To make circuit breaker contact movement fast and to make an operation unit compact by decreasing the number of components.SOLUTION: A main lever 5 to which driving force of a cam 3 to which driving force of a closing spring 28 closing a fixed contactor 62 and a movable contactor 63 of a breaking part 405 is transmitted is transmitted, and which has a blade part extended in four directions includes: a first roller 6 which comes into contact with the cam 5 in closing operation of the breaking part 405, a first pin 5b connecting a link 68, a second pin 5a connecting a breaking spring link 25 transmitting driving force of the breaking spring 26, and a second roller 7 which transmits the driving force of the breaking spring 26 to a breaking control mechanism 401, the driving force being transmitted and held substantially in the same plane. |
