×

Electric tool adaptor and electric tool system using same

  • US 9,746,860 B2
  • Filed: 07/21/2011
  • Issued: 08/29/2017
  • Est. Priority Date: 08/04/2010
  • Status: Active Grant
First Claim
Patent Images

1. An electric tool system, comprising:

  • an electric tool comprising a handle and an attachment portion provided at a lower end of the handle;

    a plug pack comprising a plug-in portion having terminals which corresponds to a plug-in portion having terminals of a battery pack; and

    an electric tool adaptor comprising a tool connection portion configured to be directly detachably attached to the attachment portion of the electric tool and a battery connection portion which allows any plug-in portion of the battery pack and the plug pack to be inserted into, thereby being configuredto be disposed between the electric tool and the battery pack and detachably attached directly to the electric tool and the battery pack, and alsoto be disposed between the electric tool and the plug pack and detachably attached directly to the electric tool and the plug pack, whereinonly the plug pack and not the battery pack has a plug configured to be connected to a commercial power source,a diode bridge is further provided in the plug pack on an input side of the electric tool adaptor, and—

    the electric tool adaptor comprises a DC-DC converter configuredto increase or reduce a voltage of the battery pack so as to convert into a drive voltage of the electric tool, and to supply the drive voltage to the electric tool when the electric tool adaptor is detachably attached directly to the electric tool and the battery pack, and alsoto increase or reduce a voltage obtained through the diode bridge in the plug pack from the plug pack so as to convert into a drive voltage of the electric tool, and to supply the drive voltage to the electric tool when the electric tool adaptor is detachably attached directly to the electric tool and the plug pack.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×