PORTABLE WORKING DEVICE FOR PORTABLE USE

A portable tool, such as a spreader tool, cutting tool or combination spreading/cutting tool is for mobile use. The tool has an electric motor, a rechargeable battery received on the tool, a mechanically or hydraulically driven, displaceable piston rod for performing spreading and/or cutting and/or...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIRCHNER, Uwe, SAUERBIER, Carsten
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FIRE-FIGHTING HAND TOOLS HUMAN NECESSITIES LIFE-SAVING MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING
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Beschreibung
Zusammenfassung:	A portable tool, such as a spreader tool, cutting tool or combination spreading/cutting tool is for mobile use. The tool has an electric motor, a rechargeable battery received on the tool, a mechanically or hydraulically driven, displaceable piston rod for performing spreading and/or cutting and/or lifting or pressing. An electronic control and regulation unit controls/regulates the electric motor, such as a brushless DC motor. The electronic control and regulation unit specifies a first operating mode in which the electric motor is operated at a first frequency, and a second operating mode in which the electric motor is operated at a second frequency. The operating mode is switchable by an operator of the tool using a manually operable switch between the first and the second operating modes. The rotational speed of a three-phase current electric motor is higher at the second frequency than at the first frequency.