Patent ID: 6486420
Filing Date: 2002-11-26
Classification: H02B

Abstract:
A disconnector contact drive device for switchgear for power supply and distribution, comprising:a linear guide shaft; a pole box frame linearly movable along the guide shaft from an ON position stop to an OFF position stop, disconnector contacts being separated from fixed mating contacts in a first movement sequence of the pole box frame, the pole box frame being displaceable to achieve an isolating distance in a second movement sequence; a rotary actuator shaft; a linear actuator shaft coupled to the rotary actuator shaft using a corner gear; and a toggle to linearly move the pole box frame, the toggle including four pivot bearings, a first one of the yea pivot bearings being coupled to the linear actuator shaft, a second one of the pivot bearings and a third one of the pivot bearings being bearings of the toggle, and a fourth one of the pivot bearings being connected to the pole box frame.