发明授权
US06222143B1 Positive off toggle mechanism 有权
正向切换机构

Positive off toggle mechanism
摘要:
a A positive OFF toggle mechanism 402 is disclosed for a circuit breaker having “ON”, “OFF,” and “TRIPPED” conditions and corresponding handle positions. The circuit breaker 10 includes a pair of contacts 44, one of which is coupled to an operating mechanism 40 having a pivoting member 13. The positive OFF toggle mechanism 402 includes a lower toggle member 404 having a first end 412 operatively coupled to the contact 44 coupled to the operating mechanism 40 and a second end 408 coupled to a toggle pivot pin 416a; an upper toggle member 410 having a first end 412 coupled to the toggle pivot pin 416a and a second end 408 in operative contact with a toggle pin mounted on the operating mechanism 40. The positive OFF circuit breaker further includes a catch member mounted on the pivoting member of the operating mechanism 40, with the catch member arranged to engage the second end 408 of the upper toggle 410 when the circuit breaker 10 is in the TRIPPED condition and the pair of contacts remain together.
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