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Title:
LOCK-UP DEVICE FOR TORQUE CONVERTER
Document Type and Number:
Japanese Patent JP2012219999
Kind Code:
A
Abstract:

To provide a lock-up device for a torque converter configured to reliably reduce vibration to be caused by a coiled spring.

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.


Inventors:
TOMIYAMA NAOKI
Application Number:
JP2011089731A
Publication Date:
November 12, 2012
Filing Date:
April 14, 2011
Export Citation:
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Assignee:
EXEDY CORP
International Classes:
F16H45/02; F16F15/134
Domestic Patent References:
JP2009156270A2009-07-16
JPH11173382A1999-06-29
JP2011002014A2011-01-06
JP2009243599A2009-10-22
JP2006029553A2006-02-02
JP2012506004A2012-03-08
Foreign References:
WO2010043194A12010-04-22
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation