| 摘要 |
PURPOSE: A vibration prevention method of an eccentric gear and a formation method of a weight control unit are provided to fundamentally prevent the occurrence of vibration by including a weight control unit in the eccentric gear. CONSTITUTION: A weight control unit (150) is formed as a hole or a groove in an eccentric gear (100). The weight control unit matches the mass center and rotation center of the eccentric gear. The eccentric gear comprises an input shaft (110), an eccentric shaft (120), a bearing (130), and a toothed wheel (140). The input shaft receives rotation power from a motor. The toothed wheel is located around the circumference of the bearing. [Reference numerals] (AA) First mass unit; (BB) Second mass unit |
