Hand tool machine having an oscillatory drive
AssigneeC. & E. Fein GmbH
InventorsJuergen Blickle, Olaf Klabunde, Heinrich Weber
Life of this patent
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Abstract
A hand tool is disclosed, comprising a housing, a motor shaft being coupled to a drive motor, a working spindle configured for being driven rotatingly oscillatingly about its longitudinal axis, and a coupling element being driven rotatingly by the motor shaft and having a closed guide surface that revolves around the motor shaft. The guide surface is coupled, via transmission means, to at least one driver for driving the latter. The at least one driver is arranged movably relative to the working spindle and engages the working spindle at a circumferential region thereof for driving the latter rotatingly oscillatingly.
Claims14
A hand tool machine comprising:
- a housing;
- a drive motor arranged within said housing;
- a motor shaft driven rotatingly by said drive motor;
- a working spindle received within said housing and having a receptacle configured for receiving a tool;
- and
- an oscillatory drive gear driven by said motor shaft configured for oscillatingly driving said working spindle about a longitudinal axis thereof;
- said oscillatory drive gear comprising:
- a wobble bearing arranged on said motor shaft, said wobble bearing comprising a coupling element having a closed guide surface revolving around said motor shaft;
- at least a first driver guided for translatory movement;
- wherein
- said first driver at one end thereof engages said closed guide surface of said coupling element;
- and
- said first driver engages said working spindle at a circumferential region thereof for oscillatingly rotating said working spindle about a longitudinal axis thereof when said first driver is moved back and forth by said coupling element.
A hand tool machine comprising:
- a housing;
- a drive motor arranged within said housing;
- a motor shaft driven rotatingly by said drive motor;
- a working spindle received within said housing and having a receptacle configured for receiving a tool;
- and
- an oscillatory drive gear driven by said motor shaft configured for oscillatingly driving said working spindle about a longitudinal axis thereof;
- said oscillatory drive gear comprising:
- a wobbling element arranged on said motor shaft, said wobbling element being rotationally decoupled from said motor shaft;
- and
- a driver engaging said wobbling element and engaging a circumferential region of said working spindle for oscillatingly rotating said working spindle about a longitudinal axis thereof when said motor shaft rotates.
Dependencies are inferred from the claim text.