Title:
LOCKUP MECHANISM FOR HYDRAULIC POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/053280
Kind Code:
A1
Abstract:
Provided is a lockup mechanism which is capable of preventing rotational variations over a wide rotational range on an output side even with a lockup RPM set to a low value. This lockup mechanism includes a piston (15) to be pushed against a front cover (2), an output-side unit (16) provided to be rotatable integrally with a turbine (4), and a first torsion spring (17) for elastically coupling between the piston (15) and the output-side unit (16). The output-side unit (16) has an output member (20) secured to the turbine (4), an inertia member (21) provided to be rotatable relative to the output member (20), a second torsion spring (22) for elastically coupling between the inertia member (21) and the output member (20), and a hysteresis torque producing mechanism (23). The hysteresis torque producing mechanism (23) produces variable hysteresis torque between the inertia member (21) and the output member (20).
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Inventors:
TOMIYAMA NAOKI (JP)
Application Number:
PCT/JP2011/068918
Publication Date:
April 26, 2012
Filing Date:
August 23, 2011
Export Citation:
Assignee:
EXEDY CORP (JP)
TOMIYAMA NAOKI (JP)
TOMIYAMA NAOKI (JP)
International Classes:
F16H45/02
Foreign References:
| JP2009293671A | 2009-12-17 | |||
| JP2009197889A | 2009-09-03 | |||
| JP2007024254A | 2007-02-01 | |||
| JP2007024255A | 2007-02-01 | |||
| JP2007247723A | 2007-09-27 |
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: