| 摘要 |
1,001,138. Yielding clutch hubs. BORGWARNER CORPORATION. Nov. 20, 1962 [Dec. 7, 1961], No. 43908/62. Heading F2U. The usual tangential apertures in a hub flange 3, Fig. 1, straddled by connected rings 5, 11 fast with a friction clutch disc 4 and formed with similar apertures to receive helical cushioning springs 16, each have their arcuate outer surfaces 22, Fig. 9, traced out by a radius R having its centre O<SP>11</SP> offset from the hub axis, so that one end, e.g. the left-hand end, of the arcuate surface 22 is nearer to the hub axis than the other, right-hand, end, while the arcuate outer surfaces 18, 21 of each pair of coacting apertures in the rings 5, 11 are arranged the other way round, viz., with their right-hand ends nearer to the hub axis than their left-hand ends. Thus the outer surfaces 18, 21, 22 of each set of apertures coact in scissors-like manner under varying torque loading of the hub, and the frictional engagement with consequential vibration dampening between the cushioning springs 16 and the outer surfaces of the apertures remains substantially constant under all conditions, both of load and speed. The springs 16 are held in position by curved edges 17-19, 21 on the rings 5, 11, and stop-pins 10, Fig. 5, connecting the two rings, pass through radial notches 12 in the hub flange 3. |
