MOTOR-DRIVEN MACHINE TOOL
First Claim
1. A motor-driven machine tool, in particular a hand-held power tool (1) comprising a rotatably driveable tool (6), a drive shaft (4) which is driven by a drive unit (2), and an output shaft (5) on which the tool (6) is mounted, it being possible to transfer the rotational motion of the drive shaft (4) via an eccentric coupling device (7) to the output shaft (5),whereina mass-balancing device (10) is provided for oscillation compensation, the mass-balancing device (10) being operatively connected to at least one of the shafts (4, 5) and implementing a compensation motion counter to the eccentric coupling motion.
1 Assignment
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Accused Products
Abstract
A motor-driven machine tool with a drive shaft and a driven shaft on which the tool is received comprises an eccentric coupling device via which the rotational movement of the drive shaft is transmissible onto the driven shaft. A mass balancer shaft is provided for compensating vibrations. Said mass balancer shaft is operatively connected to at least one of the shafts and carries out a compensating movement counter to the eccentric coupling movement.
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Citations
18 Claims
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1. A motor-driven machine tool, in particular a hand-held power tool (1) comprising a rotatably driveable tool (6), a drive shaft (4) which is driven by a drive unit (2), and an output shaft (5) on which the tool (6) is mounted, it being possible to transfer the rotational motion of the drive shaft (4) via an eccentric coupling device (7) to the output shaft (5),
wherein a mass-balancing device (10) is provided for oscillation compensation, the mass-balancing device (10) being operatively connected to at least one of the shafts (4, 5) and implementing a compensation motion counter to the eccentric coupling motion.
Specification