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US 7,731,005 B2Granted
Lock-up clutch mechanism for torque converter
AssigneeNSK-Warner K.K.
InventorRitsuo Toya
Life of this patent
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Abstract
The present invention provides a lock-up clutch mechanism for a torque converter, in which a plurality of friction materials are arranged concentrically in a radial direction and adjacent friction materials are integrally connected to each other.
Claims14
A lock-up clutch mechanism for a torque converter, comprising:
- a plurality of friction materials arranged concentrically in a radial direction,
- wherein radially adjacent friction materials are integrally connected to each other through radially extending engaging portions of the radially adjacent friction materials.
A method for manufacturing a lock-up clutch mechanism having a lock-up piston and a front cover adapted to be frictionally engaged with the lock-up piston, the method comprising:
- providing a plurality of frictional materials arranged concentrically in a radial direction and integrally connected to each other through radially extending engaging portions of radially adjacent friction materials;
- and
- attaching the integrally connected friction materials to at least one of said lock-up piston and said front cover.
Dependencies are inferred from the claim text.