| 摘要 |
PROBLEM TO BE SOLVED: To improve the smoothness and durability in drive transmission operation of a drive unit utilizing gear transmission.SOLUTION: In a drive unit that transmits the power to a drive object via a gear train (32, 33, and 34), the drive unit comprises the gear train (32, 33, and 34) comprising first and second gears 33 and 34 that are meshed with each other, in which the first gear 33 is a plastic gear and the second gear 34 is a hybrid gear which is a metallic gear having a plastic coating layer formed on the outer periphery of the metallic gear. |
