Patent ID: 6123177
Filing Date: 2000-09-26
Classification: F16H

Abstract:
A hydrokinetic coupling apparatus, comprising a generally transversely oriented wall (2) adapted to be coupled in rotation to a driving shaft and which carries a guide ring (6) fixed centrally thereto, a piston (9) mounted sealingly for axial movement along the guide ring (6) and defining, with the ring (6) and the transverse wall (2), a variable volume chamber (30) which is bounded on the outside by a disc (10), and friction liners (11) which are adapted to be gripped respectively between the piston (9) and the disc (10), and between the disc (10), and the transverse wall (2), each friction liner (11) being fixed to one of the disc (10), the piston (9) and the transverse wall (2), wherein the piston (9) is coupled in rotation to the transverse all (2), with axial mobility, by means of interposed tangential resilient tongues (40) fixed to a driving member (44), wherein the driving member (44) for the tongues (40) is fixed to the transverse wall (2), and the tongues (40) are fixed to the piston (9) with the aid of fastening means (41, 42) which extend generally through the tongues (40) and the piston (9), the fastening means comprising a first part (41) attached to the tongues (40) and bearing on the tongues (4) on the opposite side from the piston (9), together with a second part (42) bearing on the side of the piston (9) opposite to the tongues (40) and being engaged with the first part (41).