Patent ID: 6050376
Filing Date: 2000-04-18
Classification: F16H

Abstract:
A damper apparatus for a torque converter having a lock-up mechanism provided with a direct-coupled clutch displaceable between a joined state and a liberated state, and a torque converter body for transmitting power by a fluid, comprising:a reaction ring axially movably fitted to an input piston of said direct-coupled clutch and having a projection on an inner diameter portion thereof;a clutch plate fixed to an output turbine hub on an inner diameter side of said reaction ring, said clutch plate having a projection on an outer diameter portion thereof;a pair of retainer plates for holding said reaction ring and said clutch plate and also sandwiching an inner peripheral spring and an outer peripheral spring therebetween, said inner and outer peripheral springs being held in corresponding windows of said retainer plates; anda respective window portion provided in each of said pair of retainer plates;wherein said inner and outer peripheral springs are constructed and arranged to operate serially, the projection of said reaction ring is disposed between end portions of the window portion of one of said retainer plates so as to limit relative movement of said reaction ring and said retainer plates, and the projection of said clutch plate is disposed between end portions of the window portion of the other of said retainer plates so as to limit relative movement of said clutch plate and said retainer plates.