Clutch friction disc comprising a main damper and a predamper, with respective thin sections which are adjacent

摘要

The clutch friction disc includes a predamper A and a main damper B. The latter is conventional with two guide washers 14B, 15B on either side of a thin section 13B rotationally connected to the hub 12 with a specified angular deflection. Helical springs 16B, 16'B couple the guide washers 14B, 15B to the thin section 13B. The predamper A comprises a thin section 13A wedged practically without clearance onto the hub 12, and which is mounted adjacent to the main damper thin section 13B. Circumferential housings for helical springs are made for a first part 17A, 17'A in the predamper thin section 13A and for a second part 17B, 17'B in the main damper thin section 13B. Each damper has its own elastic calibrating washer 103A, 103B, these two washers being concentric and bearing on the same guide washer 14B. <IMAGE>