| 摘要 |
933,884. Torsional vibration dampers. SIMPSON MANUFACTURING CO. Jan. 17, 1961 [Feb. 4, 1960], No. 1952/61. Class 108(3). In a method of assembling a torsional vibration damper a folded elastic ring 24 is stretched axially before being inserted between the opposed cylindrical surfaces 18, 22 respectively of a hub 10 and an inertia ring 20 an annular recess 28 being formed in at least one of the surfaces 18, 22 so that, after the damper components have been assembled the ring 24 is radially constrained between the hub 10 and the inertia ring 20 and the ring 24 expands locally into the recess, or recesses 28 to prevent relative axial displacement of the ring 24, the inertia ring 20, and the hub 10. The recesses in the surfaces 18, 22 may be located in opposed relation or be spaced axially. Alternatively an annular web on the surface 18 may co-operate with an annular recess in the surface 22. In a modification, Fig. 4, employing a larger inertia ring 44 two elastic rings 24 are used opposed recesses 46, 50 being provided in the surfaces 18, 22 to receive the expanded folded ends 52 of the rings 24. In a further modification a plurality of radial holes are drilled at circumferentially-spaced intervals into the hub and the inertia ring to intersect in the surfaces 18, 22. Specifications 813,336 and 813,337 are referred to. |
