| 主权项 |
1. A torsional damping device (2) intended to be connected to a combustion engine, that device comprising a support (4) rotationally movable around an axis, and an assemblage of oscillating pendulum masses (6, 8, 10, 30, 32) mounted movably on that support (4), each of the oscillating masses of the assemblage being intercalated circumferentially between a first oscillating mass that is adjacent to it and a second oscillating mass that is adjacent to it, and forming with these two adjacent masses a group of three circumferentially consecutive oscillating masses belonging to said assemblage, hereinafter called respectively the “intercalated mass” (6), “first adjacent mass” (8), and “second adjacent mass” (8),
in which each of the oscillating masses of the assemblage is mounted movably on the support (4) by means of a single bearing element (12) associated with that oscillating mass, and for any group of three circumferentially consecutive oscillating masses, the intercalated mass (6) comprises: a first terminal edge (14) capable, during a rotation of the device, of coming into substantially circumferential sliding contact with a terminal edge (16) of the first adjacent mass (8); a second terminal edge (18) capable, during a rotation of the device, of coming into substantially circumferential sliding contact with a terminal edge (20) of the second adjacent mass (10), the terminal edge (20) of the first adjacent mass or of the second adjacent mass (10) being capable, during a rotation of the device, of radial retention respectively of the first or of the second terminal edge (18) of the intercalated mass (6), and in which for each of the oscillating masses, the bearing element rolls on the support and on the oscillating mass. |
