Patent ID: 8276723

Claim:
A lock-up clutch ( 12 ) for a hydrokinetic coupling device ( 10 ), for automobile vehicles, comprising: a main axis (X-X); at least one first element ( 44 , 46 ) mounted around the main axis (X-X) and having a first friction surface (S 1 ); a second element ( 14 A, 36 ) mounted around the main axis (X-X) and having a second friction surface (S 2 ), the first friction surface (S 1 ) intended to cooperate selectively with the second friction surface (S 2 ) of the second element ( 14 A, 36 ); an adjacent element ( 14 A, 36 ) mounted around the main axis (X-X); and articulation means ( 50 ) and sealing means ( 56 ) both disposed axially between a proximal bearing face ( 52 ) of the first element ( 44 , 46 ) and a distal bearing face ( 54 ) of the adjacent element ( 14 A, 36 ); the first element ( 44 , 46 ) and the adjacent element ( 14 A, 36 ) extend radially, orthogonally to the main axis (X-X) and rotationally connected by connecting means ( 60 ) adapted to transmit torque between the first and adjacent elements ( 44 , 46 , 14 A, 36 ); the rotational connecting means including a plurality of elastic tongues ( 60 ) extending radially between the first element ( 44 , 46 ) and the adjacent element ( 14 A, 36 ), and at least one first junction portion joined to the first element ( 44 , 46 ) and one second junction portion joined to the adjacent element ( 14 A, 36 ); the tongues ( 60 ) being adapted to be deformed elastically in the axial direction to allow movement of the first element ( 44 , 46 ) relative to the adjacent element ( 14 A, 36 ) about the articulation means ( 50 ).