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US 9,512,908 B2Granted
Oscillatingly driven power tools with toothed belt drive
AssigneeC. & E. Fein GmbH
InventorJoachim Clabunde
Life of this patent
Estimating the term…
Abstract
The invention discloses an oscillatingly driven power tool, having a motor shaft that can be driven rotationally by a motor and that is coupled via a toothed-belt drive and an eccentric coupling drive to a tool spindle, for the purpose of driving the latter.
Claims20
An oscillatingly driven power tool, comprising:
- a motor having a motor shaft driven rotatingly by said motor;
- a tool spindle;
- a transmission being configured as a toothed-belt drive;
- an eccentric coupling drive comprising an eccentric pin and an eccentric lever for driving said tool spindle, said toothed-belt comprising a toothed-belt being driven by said motor spindle and driving said eccentric pin;
- and
- an eccentric lever mounted pivotably at a first end thereof, being driven by said eccentric pin at a second end thereof, said eccentric lever driving said tool spindle about a longitudinal axis thereof oscillatingly in a first alternating direction opposite to a second alternation direction in which said eccentric lever is driven.
3 more elements
An oscillatingly driven power tool, comprising:
- a motor having a motor shaft rotatingly driven by said motor;
- a tool spindle;
- an eccentric coupling drive comprising an eccentric pin supported on an eccentric shaft and an eccentric lever for driving said tool spindle oscillatingly about a longitudinal axis thereof;
- a transmission being configured as a toothed-belt drive comprising a toothed-belt engaging a first belt wheel being driven by said motor shaft and a second belt wheel driving said eccentric shaft;
- wherein said eccentric pin, together with an eccentric bearing held thereon, are supported on said eccentric shaft;
- and
- wherein said second belt wheel comprises a mass compensation for compensating any imbalance caused by said eccentric pin and said eccentric bearing.
4 more elements
An oscillatingly driven power tool, comprising:
- a motor having a motor shaft driven rotatingly by said motor;
- a tool spindle;
- a transmission being configured as a toothed-belt drive;
- and
- an eccentric coupling drive being driven by said motor shaft and driving said tool spindle oscillatingly about a longitudinal axis thereof.
2 more elements
Dependencies are inferred from the claim text.