ELECTRIC TOOL

It is provided an electric tool capable of securing safety by forcibly deactivating a motor when a motor current exceeds a threshold while suppressing a deterioration of the work efficiency. The electric tool of the invention includes a motor 3, a main switch 1 for switching ON or OFF of electricity...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	IWAMURA, NORIHIRO, MUTO, MOTOHARU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING
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Beschreibung
Zusammenfassung:	It is provided an electric tool capable of securing safety by forcibly deactivating a motor when a motor current exceeds a threshold while suppressing a deterioration of the work efficiency. The electric tool of the invention includes a motor 3, a main switch 1 for switching ON or OFF of electricity supply to the motor 3, an output adjustment switch 2 for adjusting a rotational output of the motor 3, and a control means 6 configured to forcibly deactivate the motor 3 when a detection result by a current detection means exceeds a predetermined threshold. The control means cancels a forcibly deactivation state: when the main switch 1 is turned off under the forcibly deactivation state; or when the output adjustment switch 2 is manipulated under the forcibly deactivation state.