| 摘要 |
The present invention relates to a rotational force transmitting apparatus for an electrically driven tool, consisting essentially of: an inertial wheel (100) which is connected to an output gear (22) that rotates in engagement with a driving motor (11), and which rotates by the rotational force of the driving motor (11) transmitted thereto; a spindle (200) coupled to the center of a front surface of the inertial wheel (100) so that the spindle (200) is freely rotatable; a power transmitting eccentric body (210) extending from one side of the spindle (200) in a direction vertical to a rotational axis direction of the spindle (200); an insert pin (300), inserted into a guide hole (110), that penetrates through the front surface and rear surface of the inertial wheel (100); a position restoring spring (320) inserted into the guide hole (110) so as to elastically support the insert pin (300) in a backward direction; and a balance weight (400) which is rotatably coupled to the rear surface of the inertial wheel (100) so as to support a rear end of the insert pin (300), and which rotates by centrifugal force generated by the rotation of the inertial wheel (100) so as to push the insert pin (300) forward and cause the insert pin (300) and the power transmitting eccentric body (210) to be engaged with each other. |
