Hydrokinetic torque coupling device for a motor vehicle

A hydrokinetic torque coupling device for a motor vehicle, comprising

• a torque input element (11) intended to be coupled to a crankshaft (1),
• an impeller wheel (3) rotationally coupled to the torque input element (11),
• a turbine wheel (4), with the impeller wheel being adapted to hydrokinetically drive the turbine wheel (4),
• a torque output element (8) intended to be coupled to a transmission input shaft (2),
• damping means (21, 25),
• clutch means (10) adapted to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (21, 25), and able to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position, with the damping means (21, 25) being adapted to act against the rotation of the torque input element (11) relative to the torque output element (8), in the engaged position of the clutch means (10);
• and,
• the damping means (21, 25) comprising at least one elastic blade (25) which rotates together with the torque output element (8), and a supporting member (21) carried by the clutch means (10), with the blade (25) being elastically maintained and supported by said supporting member (21), with said elastic blade (25) being adapted to bend upon rotation of the torque input element (11) relative to the torque output element (8), in an engaged position, with the torque converter further comprising at least one radially internal flange (17) rotating together with the torque output element (8) and at least one radially external flange (19) so mounted as to pivot about said internal flange (17) and guided to rotate about said internal flange (17), with the elastic blade (25) rotating together with the internal flange (17), respectively the external flange (19), with the supporting member (21) being connected to the external flange (19).