Dampening disk assembly with spring retaining plate

摘要

A clutch disk assembly (1) is provided between an input shaft and an output shaft to selectively transmit rotation therebetween. The clutch disk assembly (1) is provided with a dampening mechanism (4) to provide smooth transition during engagement and disengagement of the clutch disk assembly. The dampening mechanism (4) has a more durable second retaining plate (32) with a rectangular window portion for transmitting torque. This second retaining plate (32) has a second receptacle (36) to support a first spring (16). The second retaining plate (32) includes a disk-like plate main body. The second receptacle (36) is formed from that plate main body. The second receptacle (36) projects in an axial direction from the plate main body. The second receptacle (36) includes an axially supporting part (36a) and a circular supporting part (36b). The axially supporting part (36a) supports an axially outside part of the first spring (16) and continues in a radial direction. The circular supporting part (36b) supports both end parts of the first spring (16), and is formed on both circular ends of the axially supporting part (36a). A second hole (36f) is formed at both corners of an inner circumferential side of the axially supporting part (36a). The second holes (36f) are elongated holes that extend in a radial direction.