Title:
LOCK UP DEVICE OF TORQUE CONVERTER
Document Type and Number:
Japanese Patent JP2015094424
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce the number of components and an axial space in a lock up device including a dynamic damper device.SOLUTION: A lock up device of a torque converter includes: a piston 30; a driven plate 36; a damper mechanism; and a dynamic damper device 37. The driven plate 36 is connected with a turbine. The damper mechanism includes an inner peripheral side torsion spring 35 and first and second plates 41, 42 and damps fluctuation of a rotational speed. The second plate 42 holds the inner peripheral side torsion spring 35 and has a damper plate 45 at a part of an outer periphery part. The dynamic damper device 37 includes: an inertia ring 46 which is disposed so as to rotate relative to the damper plate part 45; and a spring unit 48 which elastically connects the damper plate part 45 with the inertia ring 46 in a rotation direction. The dynamic damper device 37 damps rotational speed fluctuation.
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Inventors:
KAWAHARA HIROKI
Application Number:
JP2013233981A
Publication Date:
May 18, 2015
Filing Date:
November 12, 2013
Export Citation:
Assignee:
EXEDY CORP
International Classes:
F16H45/02; F16F15/134; F16F15/139; F16F15/14
Foreign References:
| WO2015046076A1 | 2015-04-02 | |||
| WO2012043301A1 | 2012-04-05 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation