Patent ID: 8038339

Claim:
A mixing member for blenders, designed for assembly in axially rotating manner inside a bowl of a blender; said bowl being substantially cylindrical, and the mixing member comprising a number of longitudinal plate-like blades extending substantially parallel to a longitudinal reference axis of the mixing member and angularly spaced about said longitudinal axis to form a structure bounded laterally by a cylindrical reference surface coaxial with said longitudinal axis; at least one of said longitudinal plate-like blades having an outer lateral edge lying on said cylindrical reference surface, and the mixing member having scraping means located on said outer lateral edge so as to rest on the cylindrical inner surface of the bowl when the mixing member is inserted inside the bowl; said scraping means comprising at least one scraper which is hinged to the longitudinal plate-like blade to project from and oscillate about a rotation axis locally substantially parallel to said outer lateral edge of the longitudinal plate-like blade and/or to said longitudinal axis of the mixing member, and which extends in a direction substantially tangent to the circular path travelled by said outer lateral edge as the mixing member rotates, while remaining locally substantially perpendicular to said rotation axis; said scraper being shaped to comprise, at a predetermined distance from said rotation axis, a wedge-shaped transverse edge which is locally substantially parallel to the outer lateral edge of the plate-like longitudinal blade or to said longitudinal axis of the mixing member, and is designed to rest on the cylindrical inner surface of said bowl; the wedge-shaped transverse edge of the scraper preceding the rotation axis of the scraper along the circular path travelled by the outer lateral edge as the mixing member rotates about said longitudinal axis; wherein said scraper extends astride the outer lateral edge of the longitudinal blade, so that the wedge-shaped transverse edge of the scraper and the rotation axis of the scraper are located on opposite sides of the longitudinal blade, and the outer edge of said longitudinal plate-like blade has a recess or depression which is engaged by said scraper.