Compact electric grinding machine
Patent Information
- Authority / Receiving Office
- US · United States
- Current Assignee / Owner
- KWH MIRKA
- Publication Date
- 2010-04-29
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to an compact electric hand-held sanding machine with an outer housing and a tool shaft.PRIOR ART
[0002] Electric sanding machines of the same type are previously known from, for example, U.S. Pat. No. 0,245,182. Here, the intention has been to make a relatively compact and low sanding machine by using a brushless motor and making the proportion between the motor diameter and the motor height great. The drawback of this solution is that the motor diameter unavoidably becomes large and therefore also difficult to be gripped with one hand. Further, since the diameter is large, it becomes disadvantageous to make a hermetic motor with cooling only on the outside. This is very disadvantageous because the air in which the sanding machine is most often used is filled by dust particles that may be both electrically conductive and grinding by nature.
[0003] Since electric sanding machines have previously been so large and heavy, it has been nece...