Title:
LOCKUP DEVICE FOR TORQUE CONVERTER
Document Type and Number:
WIPO Patent Application WO/2011/070888
Kind Code:
A1
Abstract:
Disclosed is a lockup device for a torque converter, wherein the rigidity of a float member to cause a plurality of torsion springs to operate in series, is increased by a simple structure. The lockup device is provided with a piston (30) which can be coupled to a front cover (2), a drive plate (31) coupled to the piston (30), a plurality of outer periphery-side torsion springs (32) to which torque is input from the drive plate (31), a float member (42) which is disposed on the turbine side of the outer periphery-side torsion springs (32) and which causes two outer periphery-side torsion springs (32) to operate in series. The float member (42) has a main body portion (42a) and an inner peripheral support portion (42b). The main body portion (42a) covers the outer peripheral portions and the turbine-side side portions of the outer periphery-side torsion springs (32). The inner peripheral support portion (42b) extends from the main body portion (42a) toward the inner periphery, and is supported by an output-side intermediate member (34).
Inventors:
KAWAHARA YUKI (JP)
TOMIYAMA NAOKI (JP)
TOMIYAMA NAOKI (JP)
Application Number:
PCT/JP2010/070077
Publication Date:
June 16, 2011
Filing Date:
November 11, 2010
Export Citation:
Assignee:
EXEDY CORP (JP)
KAWAHARA YUKI (JP)
TOMIYAMA NAOKI (JP)
KAWAHARA YUKI (JP)
TOMIYAMA NAOKI (JP)
International Classes:
F16H45/02
Foreign References:
| JP2009250288A | 2009-10-29 |
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
fresh green -- a global IP patent business corporation (JP)
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