Torque transmission device for a motor vehicle

A torque transmission device for a motor vehicle, having a torque input element (7a, 7b), a torque output element (24), and at least one group of elastic members (10a, 10b) mounted between the torque input element (7a, 7b) and the torque output element (24) and acting against the rotation of the torque input element (7a, 7b) and the torque output element (24) with respect to one another, the elastic elements (10a, 10b) of said group being arranged in series by means of a phasing member (30) so that the elastic members (10a, 10b) of each group deform in phase with one another, the torque output element (24) and the phasing member (30) having first (28a, 33a) and second stop means (28b, 33b) limiting their relative rotation in two opposite rotation directions (D, R), the torque input element (7a, 7b) and the phasing member (30) having third (34, 17b) and fourth stop means (34, 16b) limiting their relative rotation in two opposite rotation directions (D, R),

• wherein the torque input elements (7a, 7b) and the torque output element (24) have fifth (29, 16a) and sixth stop means (29, 17a) limiting their relative rotation in two opposite rotation directions (D, R).