| 摘要 |
PROBLEM TO BE SOLVED: To facilitate correction of balance in an electric motor and reduce the possibility of coming off of a weight from a rotor. SOLUTION: An electric power tool includes the electric motor having a stator and a rotor with a rotor shaft, rotatable with respect to the stator, a housing to house the motor, a tip tool driven by the motor, and a rotor shaft member provided to the rotor shaft. The rotor shaft member is provided with a hole extending in a radial direction of the rotor, and the hole is enlarged as it goes inward in the radial direction. COPYRIGHT: (C)2011,JPO&INPIT |
