JPH0232632U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 3 show examples of the present invention. Figure 1 is a schematic diagram of the circuit breaker in the closed state, Figure 2 is a schematic diagram of the circuit breaker in the disconnected state, and Figure 3 is a schematic diagram of the circuit breaker in the closed state. FIG. Fig. 4 is a schematic diagram of a conventional circuit breaker in a disconnected state, Fig. 5 is a schematic diagram immediately after closing, Figure 6 is a schematic diagram of a closed state, and Figure 7 is a schematic diagram of a conventional circuit breaker in a disconnected state immediately after closing. . 2... Closing spring, 3... Closing hook, 4... Shut-off spring, 7... Closing button, 9... Trip hook,
10...Shutoff button, 10a...Operating shaft, 11...Lock pin, 12...Return spring, 13...Cam.

Claims (1)

[Claims for Utility Model Registration] A contact point that performs a closing operation by the restoring force of a closing spring and a closing operation by the restoring force of a closing spring, a closing hook that can be freely engaged with and detached from the closing spring, and a connection between the closing hook and the closing spring. In a circuit breaker comprising a closing button for disengaging, a trip hook that can be freely engaged and detached from the cutoff spring, and a cutoff button for disengaging the trip hook from the cutoff spring, when the cutoff button is pushed in. A cam that is displaced in conjunction with the cam, a lock pin that engages with the closing hook so as to prevent the closing operation of the closing hook in conjunction with the displacement of the cam, and the lock pin that returns to its original position as the shut-off button returns. An interlock mechanism for a circuit breaker, characterized in that it is provided with a return spring.