Patent ID: 8822864
Filing Date: 2014-09-02
Classification: H01H

Abstract:
1. A switching apparatus for closing and/or opening an electric circuit and including an actuating unit and a bistable mechanism, the actuating unit being linearly movable between a first end position in which the switching apparatus is in a closed state and a second end position in which the switching apparatus is in an open state, which linear movement defines an axis, the bistable mechanism being arranged to ensure that the actuating unit is held in either of the end positions, which bistable mechanism includes a cam means mechanically connected to the actuating unit and at least one cam follower, characterized in that each cam follower includes a roller arranged to roll on the cam means and in that the cam means has a cam profile with a first and a second axial end defining said first and second end position, which cam profile includes an arc shaped convex portion that extends over a major portion of the cam profile, which convex portion forms a varying angle with the axis, which angle has a maximum in the range of 10° - 45°.