Title:
LOCK-UP APPARATUS FOR TORQUE CONVERTER
Document Type and Number:
WIPO Patent Application WO/2011/152205
Kind Code:
A1
Abstract:
Provided is a lock-up apparatus for a torque converter, which can reliably control vibration caused by a coil spring. Pairs of two large coil springs (74) are arranged in series in a lock-up apparatus (7). When the pairs of the two large coil springs (74) and/or pairs of 2 small coil springs (75) are compressed, a multi-stage torsional characteristic corresponding to a relative angle between a rotary input member (71) and a rotary output member (73) is thereby set so that a rigidity ratio (α1, α2) of an Nth torsional rigidity and an N+1th torsional rigidity is 1.5 to 3.0 (N is a natural number).
Inventors:
MATSUOKA YOSHIHIRO (JP)
Application Number:
PCT/JP2011/061325
Publication Date:
December 08, 2011
Filing Date:
May 17, 2011
Export Citation:
Assignee:
EXEDY CORP (JP)
MATSUOKA YOSHIHIRO (JP)
MATSUOKA YOSHIHIRO (JP)
International Classes:
F16H45/02
Foreign References:
| JP2008196540A | 2008-08-28 | |||
| JP2000018273A | 2000-01-18 | |||
| JP2008025629A | 2008-02-07 | |||
| JP2006029553A | 2006-02-02 | |||
| JP2004278744A | 2004-10-07 | |||
| JP2010031951A | 2010-02-12 | |||
| JP2009243599A | 2009-10-22 | |||
| JP2009156270A | 2009-07-16 | |||
| JP2009243532A | 2009-10-22 |
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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Claims:
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