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ELECTRIC POWER TOOL POWERED BY BATTERY PACK AND ADAPTER THEREFOR

  • US 20130062955A1
  • Filed: 06/08/2011
  • Published: 03/14/2013
  • Est. Priority Date: 07/16/2010
  • Status: Active Grant
First Claim
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1. An adapter for connecting a main body of an electric power tool and at least one battery pack to each other, the adapter comprising:

  • a connecter portion configured to be detachably attached to the main body of the power tool;

    at least one battery receiving portion configured to be detachably attached to the battery pack;

    a power supply circuit configured to electrically couple the battery pack attached to the battery receiving portion to the main body of the electric power tool attached to the connecter portion;

    a measuring portion configured to measure an index corresponding to a charged level of the battery pack attached to the battery receiving portion;

    a signal receiving portion configured to receive an alarm signal outputted from the battery pack attached to the battery receiving portion; and

    a controller portion configured to stop or restrict power supply to the main body of the electric power tool based upon a measurement by the measuring portion and the alarm signal that is received.

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