Patent ID: 6202810
Filing Date: 2001-03-20
Classification: F16H

Abstract:
A lock-up clutch mechanism of a torque converter for mechanically coupling a front cover of the torque converter and a turbine of the torque converter, the lock-up clutch mechanism comprising:a drive member having a pair of disk-like plate elements axially arranged side by side and fixedly coupled to each other, at least one of said plate elements formed with a drawn portion defining an annular recess;a driven member axially arranged between said plate elements and extending into said annular recess, said driven member being formed with a window hole corresponding to portion of said annular recess;a torsion spring disposed within said window hole and a portion of said annular recess, said torsion spring elastically coupling said pair of plate elements and said driven member in a rotational direction;wherein said pair of plate elements are manufactured by a drawing process and said plate element formed with said drawn portion is formed with a thickness that is less than the thickness of the other of said plate elements.