Patent ID: 8096856

Claim:
A motor-driven machine tool ( 1 ) with a housing ( 9 ), the tool comprising a rotatably driveable tool ( 7 ), a drive shaft ( 5 ) which is driven by a drive unit ( 2 ), and an output shaft ( 6 ) on which the tool ( 7 ) is mounted, wherein the rotational motion of the drive shaft ( 5 ) is transferred via an eccentric coupling device ( 8 ) to the output shaft ( 6 ), wherein the drive shaft ( 5 ) and the output shaft ( 6 ) are situated parallel to one another, the output shaft ( 6 ) extending at least partially at the level of and parallel to the drive shaft ( 5 ), wherein the eccentric coupling device ( 8 ) includes an eccentric member ( 13 ) operatively connected to a coupling member ( 12 ), which coupling member ( 12 ) is fixedly mounted on the output shaft ( 6 ), adjacent to tool ( 7 ), to convert the rotational motion of the drive shaft ( 5 ) to a pendulum motion of the output shaft ( 6 ), wherein the drive unit ( 2 ) is designed as an electric motor comprising a stator ( 3 ) situated on a side of the output shaft ( 6 ) facing away from the tool ( 7 ) within the housing ( 9 ), and wherein over half of an axial length of the output shaft ( 6 ) overlaps the stator ( 3 ).