| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation mechanism for a circuit breaker, in which an impulse force is reduced and wearing of teeth is reduced.SOLUTION: Operation means for operating a drive lever which drives a circuit breaker for opening/closing a cable way comprises: a motor for generating rotation energy; a first transmission mechanism to which the rotation energy of the motor is transmitted; a second transmission mechanism which is engaged with the first transmission and in which a tooth-chipped portion is formed partially; an energy accumulation mechanism coupled to the second transmission mechanism; a notch in which the tooth-chipped portion of the second transmission mechanism is formed; a first synchronizing pawl which is disposed in the notch and includes at least two of a first tooth and a second tooth and in which one pitch between the first tooth and the second tooth is configured as a chipped tooth; and a second synchronizing pawl which is disposed in the notch in parallel with the first synchronizing pawl and includes a third tooth at a tooth-chipped position between the first tooth and the second tooth of the first synchronizing pawl. |
