Patent ID: 7458884

Claim:
Grinding disk ( 100 ) for being rotationally driven on a driven shaft ( 202 ) of a grinding machine ( 200 ), in particular of a hand grinder, which grinding disk has at least one supporting plate ( 10 ) with at least two cuts or openings ( 20 ) through which the abrasive dust ( 300 ) which develops when grinding can be sucked by means of at least one suction bell ( 206 ) placed in or on the grinding machine ( 200 ), wherein each cut or opening ( 20 ) is configured aerodynamically and substantially oval with two longitudinal side edges ( 24 , 26 ) and a longitudinal center line ( 22 ) that extends approximately as an arc of a circle, wherein each cut or opening ( 20 ) widens towards a peripheral edge ( 14 ) of the supporting plate ( 10 ), wherein each cut or opening ( 20 ) tapers in the direction of a center of the grinding disk, whereby only one edge ( 26 ) of the longitudinal side edges ( 24 , 26 ) is ground or chamfered and tapers toward a center of the grinding disk, wherein a bottom side ( 16 ) of the support plate ( 10 ) that faces away from the grinding machine ( 200 ) has a plurality of air guiding ducts ( 28 ) that lead to the cuts ( 20 ), wherein the bottom side ( 16 ) of the support plate has at least one raised edge section ( 30 ) at a periphery of the plate and between at least two cuts or openings ( 20 ) at least one molding ( 40 ) is provided on which at least one cushion or pad ( 60 ) can be mounted for removably fixing at least one abrasive disk ( 80 ).