Patent ID: 6726553
Filing Date: 2004-04-27
Classification: B24B

Abstract:
A motor-driven manual grinder, in particular an eccentric-plate grinder, comprising a work spindle (13) supported in a tool housing (11) and having a central axis (17), a grinding plate unit (15) driven and rotatable by the work spindle to execute an eccentric motion, an annular first rolling face (28) extending together with the grinding plate unit (15) all the way around an eccentric axis (19), and an annular second rolling face (30) associated with the first rolling face (28), whose center axis extends coaxially to the central axis (17) of the work spindle (13) and on which the first rolling face (28) can roll, characterized in that the second rolling face (30) is supported, rotatable about the central axis (17), in a bearing (34), and that a braking device (35) is associated with the second rolling face (30), by means of which a rotation of the second rolling face (30) about the central axis (17) can be selectively prevented for forced drive mode and/or enabled for free wheeling mode.