Torsion damper for motor vehicle friction clutch

摘要

The torsion damper comprises at least one hub (1) concentric with an axis of rotation (3) with a hub disc (12) and with cover pressings (6, 11) arranged on each side and held for rotation together and spaced apart. There are coil springs (9; 13) arranged in windows in the hub disc and in the cover pressings. The edges (53, 54; 62, 63) of the windows against which then ends of the respective coil springs come into engagement are formed with deepenings (57, 58; 66, 67) which serve to give radial freedom to the respective end turns (55, 56; 64, 65) of the coil springs, so that the coil springs cannot jump out of the windows even though their ends are not actually clamped in the windows.