Power-driven hand tool with safety program

The device has an electric motor with no collector or slip ring in a housing (2) for producing a torque with motor control electronics (3) for controlling the revolution rate. A revolution rate dependent coupling (5) is arranged in the force transfer path from the electric motor (4) to a gearbox (6)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHRISTEN FERDINAND, B.-A. HANS-WILLNER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BORING BRAKES CLUTCHES COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR COUPLINGS FOR TRANSMITTING ROTATION DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAND TOOLS HEATING LIGHTING MACHINE TOOLS MANIPULATORS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERCUSSIVE TOOLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS THERMAL INSULATION IN GENERAL TRANSPORTING TURNING WEAPONS
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Beschreibung
Zusammenfassung:	The device has an electric motor with no collector or slip ring in a housing (2) for producing a torque with motor control electronics (3) for controlling the revolution rate. A revolution rate dependent coupling (5) is arranged in the force transfer path from the electric motor (4) to a gearbox (6) for transferring the torque. Independent claims are also included for the following: a method of limiting unnecessarily high twisting of the housing in the event of the tool jamming.