Title:
LOCK-UP DEVICE FOR TORQUE CONVERTER
Document Type and Number:
Japanese Patent JP2014202328
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce stress acting on a low rigidity spring in a lock-up device having a multistage torsional characteristic.SOLUTION: A lock-up device of this invention includes a retaining plate 29, a driven plate 30, plural pairs of outer peripheral side torsion springs 31 elastically connecting the plates 29 and 30, a support plate 32, and a plurality of inner peripheral side torsion springs 33. The support plate 32 can freely rotate relatively with respect to the retaining plate 29 and the driven plate 30, and makes the plural pairs of the outer peripheral side coil springs act in series. The inner peripheral side torsion spring 33 is shorter than the outer peripheral side torsion sprint 31. The relative rotation of the support plate 32 with respect to the driven plate 30 is regulated by abutting of a stopper part 32d of the support plate 32 to an intermediate stopper part 30d of the driven plate 30.
Inventors:
HONJO KEN
TOMIYAMA NAOKI
TOMIYAMA NAOKI
Application Number:
JP2013080957A
Publication Date:
October 27, 2014
Filing Date:
April 09, 2013
Export Citation:
Assignee:
EXEDY CORP
International Classes:
F16H45/02
Domestic Patent References:
| JP2009168226A | 2009-07-30 | |||
| JP2009156270A | 2009-07-16 |
Attorney, Agent or Firm:
fresh green -- a global IP patent business corporation
Previous Patent: LIQUID SEALED TYPE VIBRATION CONTROL DEVICE
Next Patent: EXTERNAL SURFACE GRIDING METHOD OF BEARING ROLLER AND ROLLER BEARING
Next Patent: EXTERNAL SURFACE GRIDING METHOD OF BEARING ROLLER AND ROLLER BEARING