| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lock-up device for a torque converter configured to reliably reduce vibration to be caused by a coiled spring. <P>SOLUTION: This lock-up device 7 includes an input rotating member 71, an output rotating member 85, a first torsion spring 74, a second torsion spring 83 and a third torsion spring 84. The output rotating member 85 rotates relative to the input rotating member 71. The first torsion spring 74 receives torque transmitted from the input rotating member 71. The second torsion spring 83 is disposed radially on the inner peripheral side of the first torsion spring 74 and acts in series with the first torsion spring 74. The third torsion spring 84 is disposed radially on the outer peripheral side of the second torsion spring 83, acts in series with the second torsion spring 83, and transmits torque to the output rotating member 85. <P>COPYRIGHT: (C)2013,JPO&INPIT |
