POWER TOOL

摘要

PROBLEM TO BE SOLVED: To provide a power tool preventing an accident caused by the change of a rotating direction during the operation of a motor.

SOLUTION: This power tool is provided with the motor 1 for rotating a driver and a drill; a direction instructing part 2 for alternatively instructing the normal/reverse rotation of the motor 1; an operation instructing part 3 for alternatively instructing the operation/stop of the motor 1; and a control part 4 for controlling the operation/stop and normal/reverse rotation of the motor 1 according to instructions of the direction instructing part 2 and operation instructing part 3. The control part 4 does not change the rotating direction of the motor 1 when the instruction of the direction instructing part 2 is changed during the operation of the motor 1. Since the direction of the motor 1 is not changed even when the direction instructing part 2 is accidentally switched during the operation of the motor 1, the accident such as the damage of a work object caused by the change of the rotating direction during the operation of the motor 1 can be prevented.

COPYRIGHT: (C)2005,JPO&NCIPI