| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling device for a circuit breaker, capable of precisely transmitting a rotational force of an outer operation handle assembly to an inner handle, even if the outer operation handle assembly and the inner handle are not concentric with each other.SOLUTION: In a coupling device for a circuit breaker according to the present invention, a third coupler 130 having a curved surface is provided between a first coupler 110 coupled to an outer operation handle assembly 10 and a second coupler 120 coupled to an inner handle 2. Under such a configuration, even if the outer operation handle assembly 10 and the inner handle 2 are not coaxial with each other, the first coupler 110, the second coupler 120 and the third coupler 130 transmit a rotational force on the same line in a state where the couplers are inclined relative to an upper surface of a circuit breaker body 1. As a result, a user's force to rotate the outer operation handle 12 can be transmitted to the inner handle 2 as it is, so that a malfunction of the circuit breaker can be prevented, and thereby the reliability of the circuit breaker can be improved. |
