| 摘要 |
PURPOSE:To simplify the mechanism and to reduce the size of a transmission unit by coupling a small size power transmission member with the eccentric position of a pulley having a large size power transmission member. CONSTITUTION:A V-type pulley 9 is driven through a V-belt 21. A large gear 9a is provided on the inner circumference of the V-type pulley 9, and it is eccentrically fitted with the axis of a main shaft 1. A small gear 10 fixed to the main shaft 1 is engaged with the large gear 9a. The small gear 10 and the large gear 9a are pressed to engage with each other by the tension F of the V-belt 21 and transmit the power of the V-belt 21 to the main shaft 1. |
