Torque transmission device for a motor vehicle

A torque transmission device (1) for a motor vehicle, comprising:

• a torque input element (2) intended to be coupled to a driving shaft;
• a torque output element (3) intended to be coupled to an input shaft of a gearbox, the torque output element (3) and the torque input element (2) capable of pivoting with respect to one another around an axis X;
• a pendulum vibration damper;
• and
• first and second elastic damping stages (32, 39) installed in series between the torque input element (2) and torque output element (3),
• the first damping stage (32) having at least one elastic member installed between the torque input element (2) and a guidance device (36;
• 37;
• 38;
• 40) so as to act against the rotation of the guidance device with respect to the torque input element (2),
• the second damping stage (39) having at least one elastic member installed between the guidance device (36;
• 37;
• 38;
• 40) and the torque output element (3) so as to act against the rotation of the torque output element with respect to the guidance device (36;
• 37;
• 38;
• 40),
• the guidance device (36;
• 37;
• 38;
• 40) having first stop means (43) capable of limiting the pivoting of the torque input element (2) with respect to the guidance device, and second stop means (42) capable of limiting the pivoting of the torque output element (3) with respect to the guidance device,
• the pendulum vibration damper comprising pendulum masses (45) installed movably on the guidance device and/or on a support (46) fastened to the guidance device.

A torque transmission device (1) for a motor vehicle, comprising:

• a torque input element (2) intended to be coupled to a driving shaft;
• a torque output element (3) intended to be coupled to an input shaft of a gearbox, the torque output element (3) and the torque input element (2) being capable of pivoting with respect to one another around an axis X;
• and
• first and second elastic damping stages (32, 39) installed in series between the torque input element (2) and torque output element (3);
• the first damping stage (32) having at least one elastic member installed between the torque input element (2) and a guidance device (36;
• 37;
• 38;
• 40) so as to act against the rotation of the guidance device with respect to the torque input element (2);
• the second damping stage (39) having at least one elastic member installed between the guidance device (36;
• 37;
• 38;
• 40) and the torque output element (3) so as to act against the rotation of the torque output element with respect to the guidance device (36;
• 37;
• 38;
• 40);
• the guidance device (36;
• 37;
• 38;
• 40) having first stop means (43) capable of limiting the pivoting of the torque input element (2) with respect to the guidance device, and second stop means (42) capable of limiting the pivoting of the torque output element (3) with respect to the guidance device;
• the guidance device having a common guide washer (36) common to the two damping stages;
• the elastic member of the first damping stage (32) being installed between the torque input element (2) and the common guide washer (36);
• the elastic member of the second damping stage (39) being installed between the common guide washer (36) and the torque output element (3);
• the elastic member (32) of the first damping stage and the elastic member (39) of the second damping stage situated axially on either side of the common guide washer (36);
• the guidance device having at least one stop member (41) forming both the first stop means (43) and the second stop means (42).