Lock-up clutch for hydrokinetic coupling device including improved connection means

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 (S1);
• a second element (14A, 36) mounted around the main axis (X-X) and having a second friction surface (S2), the first friction surface (S1) intended to cooperate selectively with the second friction surface (S2) of the second element (14A, 36);
• an adjacent element (14A, 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 (14A, 36);
• the first element (44, 46) and the adjacent element (14A, 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, 14A, 36);
• the rotational connecting means including a plurality of elastic tongues (60) extending radially between the first element (44, 46) and the adjacent element (14A, 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 (14A, 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 (14A, 36) about the articulation means (50).