| 摘要 |
PROBLEM TO BE SOLVED: To improve sound vibration performance in a negative-side region of a torsional characteristic, in a damper mechanism. SOLUTION: A hub 3 is relatively rotatable with respect to plates 21 and 22. A hub flange 6 is relatively rotatable within a predetermined angle with respect to the hub 3. A small coil spring 7 elastically connects the hub 3 to the hub flange 6 in the rotating direction. First springs 8A and second springs 8B connect the hub flange 6 to the plates 21 and 22 in the rotating direction. A sub-plate 11 is arranged between axial directions of the plates 21 and 22, comes into contact with reverse drive side ends of the first springs 8A, and relatively rotatably engages with the hub 3 in a predetermined angle. A spaceθ2 between the hub 3 and the sub-plate 11 located on its drive side is smaller than a spaceθ3 between the hub 3 and the hub flange 6 located on its drive side. The drive-side end 63 of the first spring 8A is supported to the hub flange 6 in the rotating direction and separated from the pair of plates 21 and 22 at a predetermined angleθ5. COPYRIGHT: (C)2006,JPO&NCIPI
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