| 摘要 |
<p>A hand-hold machine tool for the machining of workpieces, in particular a motor-driven file, has a reciprocating plate (25) with a holder (42) for the releasable fastening e.g. a file blade (12), and a driving unit (11) which imparts a continuous longitudinal reciprocation to the plate (25) and hence the blade (12). In order to prevent the blade (12) from becoming increasingly clogged with filings or metal dust during the work process with the consequent drop in efficiency, means (45, 51) are integrated into the driving unit (11) which impose an additional transverse stroke, at least during its return movement. The transverse movement of the metal-removing tool or file blade (12) has the effect of pushing the filings out sideways so that the teeth of the metal-removing tool or file blade (12) are at all times exposed and cut in an optimum manner. A counterweight (26) reciprocates oppositely to the plate (25) and a roller (43) holds plate (25) against a sliding surface of a plate (23). <IMAGE></p> |
