Grinding tool for generating in the cross section t - an annular grooves, and is curved, t - has the shape of an undercut groove, as well as a method and angetriebens tool for producing such a groove

摘要

The present invention relates to a grinding tool for made of concrete, stone, bricks and comparable mineral building materials existing components or structures for generating a t - has the shape of an undercut groove in the component (50) or of the building structure. The grinding tool has a cylindrical tool shank (14) on the one end of a to the longitudinal axis (l) of the tool shaft (14) rotationally symmetrical tool head (20) is provided, and whose the tool head (20) opposite end for rotationally fixed connection to a driven tool (40) is designed. According to the invention, the entire surface of the tool head (20) as well as the entire surface of the immediately adjacent the tool head (20) portion of the tool shaft (14) including the transition (22) of the tool head (20) in the tool shank (14) with into the surfaces partially recessed abrasive particles (32) is provided, the upper side (24) of the tool head (20) is flat and at right angles to the longitudinal axis (l) of the tool shaft (14), during the transition of the tool head (20) in the tool shank (14) as well as all the peripheral edges (26) of the tool head (20) are rounded. Furthermore, the invention relates to an arcuate t - has the shape of an undercut groove as well as a method and a driven tool for the production of a curved t - has the shape of an undercut groove.