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Title:
TORQUE CONVERTER LOCKUP DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/196340
Kind Code:
A1
Abstract:
Provided is a dynamic damper device that can be small and lightweight. This lockup device has a clutch (28), a driven plate (33), a plurality of torsion springs (29, 32), an intermediate member (31), and a dynamic damper device (34). The clutch (28) transmits torque from a front cover (2) to the output side, and the driven plate (33) is coupled to a turbine (4). The intermediate member (31) can rotate relative to the clutch (28) and the driven plate (33), and at least two of the plurality of torsion springs (29, 32) act in series. A first and second inertia ring (53, 54) constituting the dynamic damper device (34) have accommodating recess portions (53a, 54a) that are separated in the axial direction and mutually face each other in the axial direction, and a plurality of coil springs (55) are accommodated in the accommodating recess portions (53a, 54a).

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Inventors:
TOMIYAMA NAOKI (JP)
Application Number:
PCT/JP2014/063082
Publication Date:
December 11, 2014
Filing Date:
May 16, 2014
Export Citation:
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Assignee:
EXEDY CORP (JP)
International Classes:
F16H45/02
Domestic Patent References:
WO2011138216A12011-11-10
WO2013161493A12013-10-31
Foreign References:
JP2012077826A2012-04-19
JP2012251649A2012-12-20
JP2001082577A2001-03-27
US20110287844A12011-11-24
JP2013145025A2013-07-25
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
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