Wobble drive of a hand-held power tool
AssigneeRobert Bosch GmbH
InventorsGerd Schlesak, Juergen Lennartz, Stefan Holst, Klaus Kuespert
Life of this patent
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Abstract
The invention relates to a wobble drive of a hand-held machine tool, particularly a drilling or chipping hammer, having a drive shaft, a wobble bearing disposed on the drive shaft, and a wobble plate supported on the wobble bearing. At least two wobble fingers having wobble finger axes being provided on the wobble plate. The invention provides that the axes of the wobble fingers form an angle different from 180°.
Claims19
A wobble drive of a hand-held power tool, having a drive shaft with a wobble bearing situated on the drive shaft and having a wobble plate mounted on the wobble bearing, the wobble plate being provided with at least two wobble fingers, each with a respective wobble finger axis, wherein axes of the wobble fingers enclose an angle not equal to 180°, wherein the angle between the axes of the wobble fingers is adjustable.
A wobble drive of a hand-held power tool, having a drive shaft with a wobble bearing situated on the drive shaft and having a wobble plate mounted on the wobble bearing, the wobble plate being provided with at least two wobble fingers, each with a respective wobble finger axis, wherein axes of the wobble fingers enclose an angle not equal to 180°, wherein the axes enclose an angle of between the ranges of 10° and 170° and 190° and 350°, and wherein the angle between the axes of the wobble fingers is adjustable.
A wobble drive of a hand-held power tool, having a drive shaft with a wobble bearing situated on the drive shaft and having a wobble plate mounted on the wobble bearing, the wobble plate being provided with at least two wobble fingers, each with a respective wobble finger axis, wherein axes of the wobble fingers enclose an angle not equal to 180°, wherein one wobble finger converts a rotary motion of the drive shaft into a translatory motion of an element embodied as a piston of an impact mechanism of the hand-held power tool, and the other wobble finger converts a rotary motion of the drive shaft into a translatory or rotary motion of another element embodied as a balancing unit, and wherein the balancing unit encompasses both the drive shaft and a guide of the piston such that the drive shaft and the guide of the piston extend through the balancing unit.
Dependencies are inferred from the claim text.