| 摘要 |
[Problem] To provide an improvement technique for minimizing vibration occurring due to rotation of an output shaft of a motor to which an eccentric shaft is coupled. [Solution] This electric vibration tool (100) has: an electric motor (110) provided with an output shaft (111); an eccentric shaft (112) connected to one end of the output shaft (111); and a weight (170) connected to the other end of the output shaft (111). A blade (10) which functions as a distal tool is driven to rotate in reciprocating fashion about a spindle (115) due to reciprocating motion of the eccentric shaft (112) in relation to the lateral direction of the electric vibration tool (100). The output shaft (111) is then stably rotated by driving the weight (170) so as to offset the inertial force of the eccentric shaft (112). |
