Lever mechanism, in particular for a weighing sensor a according to the principle of electromagnetic force compensation balance

摘要

The present invention relates to a lever mechanism, in particular for a weighing sensor a according to the principle of electromagnetic force component operating balance, with at least one with a stationary base body (3) or an associated element, to the lever (23), wherein the at least one lever arm via a pivot axis of the at least one lever (23) defining, elastically deformable joint (28) with the base body (3) or the associated element is connected to a first lever arm of the at least one lever is one of the weight force (f_G) the corresponding or derived from the loading force (f_L) which acts on a second lever arm of the at least one lever is a reaction force (f_R) generates. According to the invention, the elastically deformable joint (28), two thin, elastically deformable bending areas (29), the lever directly or indirectly with the base body (3) or the associated member, wherein each bending area (29) in a direction perpendicular to a by the geometry of the bend area (29) defined plane of longitudinal extent for generating a pivot movement of the at least one lever (23) is adapted to be brought, wherein said longitudinal extension planes of the bending areas (29) an angle (α) and wherein not equal to zero by the two elastically deformable bending areas (29) a virtual pivot axis (d) of the at least one lever (23) is defined.