Patent ID: 6781079
Filing Date: 2004-08-24
Classification: H01H

Abstract:
An air break switch actuator comprising or including:a structure providing means to locate in position, a switch actuating means rotatable about a rotation axis between a first and a second rotational position corresponding to an open and closed position of a switch, operating means rotatable about said rotation axis and responsive in rotation to a manual and/or by a drive unit input via an operating lever of said operating means, a connection plate rotatable about said rotation axis connecting for rotation the operating means with the switch actuation means to positively displace the switch actuation means at least during part of the movement of the operating means, said connection plate carrying pins which extend into slots of said switch actuating means and said operating means, biasing means applying a biasing force to said connection plate in toggle like manner, said connection plate being responsive in rotation to the rotation of said operating means by coupled engagement via at least one of said pins prior to reaching said toggle point whereupon said connection plate by coupled engagement via at least one of said pins with said switch actuation means rotate said switch actuation means under the urge of said biasing means from one of the first and second position to the other, and wherein a pawl is provided to lock rotation of said switch actuating means by its engagement with a pawl engageable notch in said switch actuating means when said switch is in its second rotational position.