| 摘要 |
PURPOSE:To make it possible to reduce the vibrations at a right angle with respect to the vibrating direction of a driven member. CONSTITUTION:By the rotating motions of a drive unit X, a rotatable member 1 and a follower 2 are rotationally driven so that a driven member 6 is vibratorily driven. The circular motions of a balancer 3 have a parallel vibratory component, which is in parallel but in opposite direction to the vibrations of the driven member 6, and a perpendicular vibratory component which is at a right angle with respect to the vibrations of the member 6 but has its phase retarded therefrom. The circular motions of a balancer 4 have a parallel vibratory component, which is in parallel but in opposite direction to the vibrations of the member 6, and a perpendicular vibrations of the member 6 but has its phase advanced therefrom. As a resutl, the vibrations of the member 6 are offset by the composed vibrations of the parallel components of the two balancers, and the perpendicular components are also offset. |
