WORK MACHINE AND PERFORATION METHOD

A working tool and a drilling method capable of improving workability are provided. A working tool 1 includes a motor 6, a trigger switch 7 to instruct the driving of the motor 6, and a microcontroller 40 to control the driving of the motor 6. The microcontroller 40 stops the motor 6 without transit...

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Bibliographische Detailangaben
Hauptverfasser:	SO Chisho, INUI Ken, SUDO Tomoaki, NAKANO Ryosuke
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BORING 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 MACHINE TOOLS MANIPULATORS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING TURNING
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Beschreibung
Zusammenfassung:	A working tool and a drilling method capable of improving workability are provided. A working tool 1 includes a motor 6, a trigger switch 7 to instruct the driving of the motor 6, and a microcontroller 40 to control the driving of the motor 6. The microcontroller 40 stops the motor 6 without transitioning to a retry mode when detecting a rapid increase of a motor current. The microcontroller 40 transitions to the retry mode when detecting an overload without accompanying the rapid increase of the motor current. In the retry mode, the activation and stop of the motor are repeated. When the load applied to a tool bit 31 is eliminated during execution of the retry mode, the microcontroller 40 returns to a normal mode while the trigger switch 7 is kept on.