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Electric tool

  • US 7,086,483 B2
  • Filed: 08/25/2004
  • Issued: 08/08/2006
  • Est. Priority Date: 08/26/2003
  • Status: Expired due to Fees
First Claim
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1. An electric tool comprising:

  • a reversible motor;

    an output shaft rotated by said motor;

    a rotational-direction switch for switching a rotational direction of said output shaft in either forward or reverse direction;

    a first memory for storing a plurality of operation modes of said output shaft with respect to one of said forward and reverse directions;

    an operation-mode switch for selecting one from said operation modes;

    a second memory for temporarily storing an operation mode selected by said operation-mode switch in a previous operation of the electric tool at the one of said forward and reverse directions in conjunction with the information of the rotational direction in the previous operation; and

    a controller for automatically setting the electric tool in the operation mode temporarily stored in said second memory in a current operation of the electric tool, in which the same rotational direction as the previous operation is selected.

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