Torque transmission device for motor vehicle, has arm with end supported on guiding surface, where distance from guiding surface to rotational axis varies with angular displacement of hub and disk to cause elastic deformation of arm

摘要

The device has a connection unit i.e. pre-shock absorber (40), including an elastically deformable bent arm (44) with an end (46) connected to an inner washer (42). The arm has another end (48) cooperating with an annular disk (22) and slidingly supported on a circumferential guiding surface (50). The washer and the guiding surface are rotatably connected to a splined hub and the disk, respectively. Distance from the guiding surface to a rotational axis (64) varies with angular displacement of the hub and the disk to cause elastic deformation of the arm, which varies with the displacement.