Hilti Aktiengesellschaft

Michael Brandner

Bernd Ziegler

Thomas Bader

Klaus Hauser

Thomas Mueller

Torsten Tussing

Matthias Doberenz

Benno Verhaag

Sören Schöpke

Christian Laudensack

Hubert Ludwig

Roland Schwab

Joachim Wörz

Thomas Müller

A power tool, in particular a chipping hammer, containing a first and second side handle and a tool housing having an interface for releasably receiving and holding a first and second rechargeable battery, wherein a side-handle axis extending through the first and second side handles is arranged substantially perpendicularly to a working axis extending through the tool housing. The power tool contains a protective apparatus for protecting the first and second rechargeable batteries, the protective apparatus having an internal volume for at least partially receiving the first and second rechargeable batteries.

Power tool having a protective guard-bracket device for rechargeable batteries

The battery unit according to the invention for a handheld machine tool comprises a number of battery cells, with at least one of the battery cells being embodied as an isolation battery cell, and showing a fire protection jacket comprising an intumescent material. The fire protection jacket surrounds the isolation battery cell at least partially such that the isolation battery cell is surrounded by the fire protection jacket at a predetermined temperature such that the isolation battery cell is thermally insulated.

Battery for a handheld machine tool and method for producing a battery for a handheld machine tool

The invention relates to a method for operating a hand-held machine tool with a tangential impact mechanism which can be driven by means of a drive shaft and an electric motor, according to which method an actual torque provided by the drive shaft is adjusted to a required torque depending on a measured motor current, wherein the required torque is less than a triggering torque of the tangential impact mechanism.

Method and device for operating a hand-held machine tool with a tangential impact mechanism

A method to monitor the current of a handheld power tool () operated by a battery (), by at least one counter (), includes the following steps:

Method and device to monitor the current of a battery-operated handheld power tool

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Landsberg am Lech/Erpfting, Germany

Michael Brandner