Robert Boschgmbh

Andreas Hoffman

Steffen Wuensch

Doris Reich

Ulrich Mueller-Boysen

Franz Scheschark

A manual machine tool ( ) includes a vacuum device for dust removal ( ) situated in its housing ( ) and a blow-out connection ( ) installed after this. A dust collection box ( ), particulaily self-contained, can be attached in detachable fashion to the blow-out connection ( ) via its blow-in connection ( ). The dust collection box ( ) is airtight on all but two sides and has air-exit holes ( ) on the top side ( ) and a dustproof filter element ( )&mdash;especially a fluted filter&mdash;on the inside. The dust collection box is particularly secure against the unintentional escape of dust after the dust collection box is detached from the associated manual machine tool because a pair of sealing lips ( ) arranged as a separate part is provided inside the blow-in connection ( ), which pair of sealing lips ( ) is connected as a single part with closing flaps ( ) projecting into the interior of the dust collection box ( ).

Growing community of inventors

Winnenden, Germany

Andreas Hoffman