Hilti Aktiengesellschaft

Josef Nussbaumer

Rolf Spangenberg

Jean-Pierre Chevalier

A grinding wheel including a circular grinding region () with a plurality of through-openings () formed therein, a central mounting region () coaxial with the grinding region (), and a plurality of cutting bodies () having a rectangular base surface, projecting from the grinding region (), and spaced from a center of the mounting region () by different radial distances, with each cutting body () having a longitudinal side () adjacent to the center of the mounting region () and a wide side () remote from the center of the mounting region (), with the longitudinal side () and the wide side () forming together an edge (K), and with the longitudinal side () extending at an angle (B) of from 35&#xb0; to 55&#xb0; to a radial line (R) extending from the center of the mounting region () and passing tangentially to the edge (K).

Grinding wheel

A pot-shaped grinding wheel having a circular grinding region provided with a plurality of segment-like grinding members (5), a circular seat region (4) coaxial with an axially spaced from the grinding region (2), a transition region (3) extending between an inner contour of the grinding region (2) and an outer contour of the seat region (4) and tapering toward the outer contour of the seat region (4), and at least one bore (6) extending parallel to an axis of the grinding wheel and arranged in the grinding region (2) and at least one bore (7) likewise extending parallel to the grinding wheel axis and arranged in the transition region (3).

Growing community of inventors

Augsburg, Germany

Josef Nussbaumer