| 摘要 |
PROBLEM TO BE SOLVED: To suppress a vibration inside a car rapidly, safely, and accurately without mechanically replacing a sheave even if an eccentricity or dynamic imbalance occurs on the sheave of a hoist. SOLUTION: A vibration suppressing means suppresses, based on the vibration values detected by the means, a vibration inside a car 1 occurring when an eccentricity or a dynamic imbalance is produced on a sheave installed on a hoist 2. |
