Spring operating mechanism for a circuit interrupter

Details Spring operating mechanism for a circuit interrupter Spring operating mechanism for a circuit interrupter

G - Physics

05

G

306/295

G05G 17/00 (2006.01) F16H 31/00 (2006.01) H01H 3/30 (2006.01)

Patent

CA 1278328

ABSTRACT OF THE DISCLOSURE A spring operating mechanism for a circuit interrupter comprises means for converting the rotation of an electric motor into a rocking motion of a pawl, a ratchet wheel having teeth for being engaged by the pawl to be rotated by the rocking motion of the pawl and a closing spring which is charged by the rotation of the ratchet wheel, whereby energy charged in the closing spring is used for the closing and the tripping of the circuit interrupter. The mechanism comprises a catch arranged to come into engagement with the tip of the pawl when the tip of the pawl begins to ride on a large-diameter outer circumferential toothless portion of the ratchet wheel and to be brought out of the above engagement by the rocking motion of the pawl.

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