| 摘要 |
<p>The invention relates to a rotary operating device for a circuit breaker. The device includes a rotary handle (15) mounted on a casing (14) containing a mechanism for coupling between a pivoting crankpin of the circuit breaker and the said handle. This handle is integral with a semicircular drive groove (17) which carries an eccentric pin (18) acting on a drive fork (20) which pivots about a fixed shaft (21). This fork is equipped with an opening (22) in order to house the said crankpin and with an indexing plate (31'). A pivoting bar (33) constitutes, with the opening (22) and the indexing plate (31') an indexing system preventing the rotary operating device being put in place when there is inconsistency between the state of the crankpin and that of the handle. <IMAGE></p> |
