MIXING APPLIANCE PERTAINING TO A CHEMICAL OR BIOCHEMICAL ANALYSER AND COMPRISING A PIPETTE DRIVEN IN A OSCILLATING MANNER

摘要

The invention relates to a mixing appliance (1) pertaining to a chemical or biochemical analyser and comprising a pipette (4) having a head (4a), a body (4b) and a free end (4c). The head (4a) of the pipette (4) is fixed to a head supporting block (5). The inventive mixing appliance (1) comprises driving elements for triggering the oscillation of the free end (4c) of the pipette (4). Said driving elements consist of an actuating unit (3) that is fixed to a frame (2), both elements being associated with a guiding block (9) provided with an eccentric block (9b) that is mounted in such a way as to rotate freely about an axis (10) and is in contact with the body (4b) of the pipette (4). The head supporting block (5) is mounted in such a way as to rotate freely in the frame (2) about an axis (7) perpendicular to the plane in which the pipette (4) oscillates.