Hand-Held Hammer Drill
AssigneeAEG Electric Tools GmbH
InventorsAchim Hess, Stefan Pohl, Markus Worner, Hans Klopfer
Life of this patent
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Abstract
A hand-held hammer drill has a housing, a tool spindle rotatingly driving a tool, a hammer action percussion-driving the tool, a swash plate drive driving the hammer action, and a countershaft driving as needed the tool spindle and the hammer action. A first bearing and an axial bearing are provided. The hub is rotatably supported in a cantilevered arrangement by the first bearing in the housing and coaxially surrounds the countershaft. The hub has a free cantilevered end and the axial bearing is disposed on the free cantilevered end, wherein the axial bearing axially supports the countershaft and has radial play relative to the countershaft.
Claims6
A hand-held hammer drill comprising:
- a housing;
- a tool spindle rotatingly driving a tool;
- a hammer action percussion-driving the tool;
- a swash plate drive driving the hammer action;
- a countershaft driving as needed the tool spindle and the hammer action;
- a first bearing;
- an axial bearing;
- wherein the hub is rotatably supported in a cantilevered arrangement by the first bearing in the housing and coaxially surrounds the countershaft;
- wherein the hub has a free cantilevered end and the axial bearing is disposed on the free cantilevered end, wherein the axial bearing axially supports the countershaft and has radial play relative to the countershaft.
Dependencies are inferred from the claim text.