Patent ID: 6506990
Filing Date: 2003-01-14
Classification: H01H

Abstract:
A multipole electrical switchgear apparatus comprising:a support; a drive mechanism equipped with a pole shaft for rotating around a first geometric and axis fixed with respect to the support; a plurality of breaking modules, each module comprising: a pair of separable contacts comprising at least one movable contact; a movable rod securely affixed to the movable contact; a transmission lever for pivoting around a second geometric axis parallel to the first geometric axis, said second geometric axis being common to all the breaking modules and fixed with respect to the support; means for connecting the transmission lever to said rod; and a single connecting rod connecting the pole shaft to the transmission levers of the breaking modules, the connecting rod being articulated on at least two coaxial cranks of the pole shaft, defining a third geometric axis of pivoting parallel to the first geometric axis, and on pivots ensuring pivoting of each transmission lever with respect to the connecting rod around a fourth geometric axis of pivoting parallel to the first geometric axis and common to all the breaking modules.