Safety device for multi-function handtool

The tool drive (7) may impart rotational and reciprocating movements to the tool. An electric motor (6) drives the tool through a clutch (8). An ATC (ANTI-TORQUE CONTROL) module (1) has a rotation sensor (3) and an axial movement sensor (4) connected to a microcontroller (2). The two sensors are con...

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Bibliographische Detailangaben
Hauptverfasser:	OSSELMANN, CLAUS, GROER, STEFAN, HELLMANN, PETER
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 HAND TOOLS MANIPULATORS PERCUSSIVE TOOLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING
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Beschreibung
Zusammenfassung:	The tool drive (7) may impart rotational and reciprocating movements to the tool. An electric motor (6) drives the tool through a clutch (8). An ATC (ANTI-TORQUE CONTROL) module (1) has a rotation sensor (3) and an axial movement sensor (4) connected to a microcontroller (2). The two sensors are connected to identical circuits containing integrators (9) and multipliers (10) connected to adders (11) and comparators (12a,b) fed with threshold signals (13a,b) and sending signals (14a,b) to an AND circuit (15). This sends a control signal (5) to the clutch to release it.