| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable rigidity type dynamic vibration absorbing device, capable of solving the problem of a pattern formation phenomenon if any generated due to vibration of a contact roll system, for example, to which there is no fundamental measure of prevention at site, giving fatal damage to the product, or causing a situation of setting an upper limit of line speed. SOLUTION: This variable rigidity type dynamic vibration absorbing device is composed of a pair of same rigidity long rigid members having axial centers on the same perpendicular plane to the vibration direction of a vibration body, and having the longer axis and the shorter axis in a cross sectional surface, a vibration absorbing body installed on the vibration member to be rotatable on both sides of the pair of the long rigid members, a weight installed to be rotatable between the pair of the long rigid members, and a mechanism to vary a synthetic rigidity coefficient while holding the synthetic vibration direction of the pair of the long rigid members set to the linear vibration direction of the vibration body by mutually reversely rotating the pair of the long rigid members in a surface-symmetric state. COPYRIGHT: (C)2006,JPO&NCIPI
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