| 摘要 |
PURPOSE:To obtain an interlock mechanism, which is not operated erroneously, by providing a sliding board which retracts upon insertion of a male joint metal into a female joint metal and a pin which is engaged with a stopper and disengaged from the sliding board upon insertion of the male joint metal into the female joint metal and moves upward so that the upper end thereof is fitted to the male joint metal. CONSTITUTION:A sliding board 5 which retracts upon insertion of a male joint metal into a female insertion metal, and a pin 6 having upper and lower ends engagable, respectively, with the rear surface of the sliding board 5 and a stopper in a circuit breaker chamber and disengaged from the sliding board 5 upon insertion of the male joint metal into the female joint metal and moves upward so that the upper end thereof is fitted to the male joint metal are arranged at the opening 1b1 of a drawer type circuit breaker. A stopper 10 is arranged on the floor face of the circuit breaker chamber in the rear of the lower end projecting downward from the bottom board of the pin 6, where a shaft stop ring 6b is fitted in the center of the pin 6 end a compression spring 12 is fixed between the stop ring 6b and the bottom board. By such arrangement, an interlock mechanism, which is not operated erroneously, can be obtained. |
