Hilti Aktiengesellschaft

Torsten Tussing

Helmut Burger

Wolfgang Ludwig

Thomas Bader

Jens Frenzel

Thomas Mahler

Michael Brandner

Manfred Jakob

Matthias Doberenz

Sören Schöpke

Christian Laudensack

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

A non-output-side end shield () for a brushless electric motor () is provided, including a centrally arranged bearing seat () for accommodating a non-output-side rotor bearing () for a rotor shaft () of the brushless electric motor (), the non-output-side end shield () including a sensor receptacle (), which is used as a carrier for a sensor circuit board () for detecting the rotational position of the rotor shaft (), the non-output-side end shield () and the sensor receptacle () being formed together as a one-part component.

End shield for a brushless electric motor

A winding support () that serves to at least partially accommodate a stator coil of a stator, whereby the winding support () has a plurality of protrusions () that can each be inserted in an insertion direction (E) into a cavity that is formed by two adjacent stator pole teeth of a laminated core of the stator, whereby at least one of the protrusions () has a different length in the insertion direction (E) than at least one of the other protrusions ().

Winding support and stator

A brush holder () has a carbon holder () which forms a guide () for a carbon brush () and at which a holding spring () that presses the carbon brush () against a first guide side of the guide () with a holding pressure force (HF), is provided, with the holding spring () having two portions () which are biased against one another, and with the carbon holder () and the carbon brush () projecting through between the two portions ().

Brush holder

Growing community of inventors

Landsberg am Lech, Germany

Torsten Tussing