| 摘要 |
PROBLEM TO BE SOLVED: To provide a torsional vibration reduction device having superior vibration control performance by reducing sliding friction between a rolling element and a member for connecting the rolling elements.SOLUTION: In a torsional vibration reduction device in which rolling elements 3 are disposed in guide holes 2 formed on a rotor 1, and the rolling elements 3 are connected by connecting members 5, the connecting members 5 include accommodating portions 7 opened to an outer side in a radial direction of the rotor 1, the accommodating portions 7 are formed to be wider than a moving length gl of a center of gravity g of the rolling elements 3 in an axial direction of the rotor 1 in reciprocating the rolling elements 3, hold a range including the moving length gl, of outer peripheral faces 3s of the rolling elements 3 from an outer peripheral face 3s side, and are disposed in the guide holes 2, and at least two contact portions 7b, 7c kept into contact with the outer peripheral face 3s in the reciprocating direction of the rolling element 3, are formed on an inner face of the accommodating portion 7.SELECTED DRAWING: Figure 1 |
