Robert Boschgmbh

Mario Pauli

Juergen Wiker

Peter Stierle

Harald Krondorfer

Thomas Schomisch

Ralph Dammertz

Markus Heckmann

Albrecht Hofmann

Dietmar Hahn

Stefan Heess

Ernst Kraenzler

Roland Walter

Kersten Heckmann, Legal Representative

Meinhard Eule

Andreas Heilmann

Ralph Beetz

A portable power tool includes a motor housing () and a housing cover () that is attached to the motor housing (). The portable power tool includes insulation () adjacent to the motor housing () and the housing cover (), which are guided through a guide () in the direction toward the motor housing () and/or the housing cover ().

Hand-held power tool

In a method for shutting off a drive motor () of a power tool that drives a tool, the drive motor () is shut off as a function of a variable threshold value (E) if the tool jams. The threshold value (E) is determined in at least one predetermined time interval (T) as a function of a current load speed (n) and a no-load speed (n).

Method for switching off a power tool

An electric hand power tool has an on/off switch, an elongated switching key having a front end and a rear end and actuating the switch, a blocking lever carried by and projecting from the switching key to prevent or to allow turning on of the latter, the switching key being supported turnably, the switching key having a convex curvature starting substantially centrally and extending toward the rear end, the switching key carrying the blocking lever near the rear end, the blocking lever having an upper edge located under a tangent between the convex curvature and the rear end of the switching key.

Electric hand power tool with switching key

Growing community of inventors

Gundelsheim, Germany

Mario Pauli