Dampening disk assembly with spring retaining plate

Abstract

A clutch disk assembly,is provided between an input shaft and an output shaft to selectively transmit rotation therebetween. The clutch disk assembly,is provided with a dampening mechanism,to provide smooth transition during engagement and disengagement of the clutch disk assembly. The dampening mechanism,has more durable first and second retaining plates,and,with a rectangular window portion for transmitting torque. The first and second retaining plates,and,are used to support first springs,of the clutch disk assembly. The first and second retaining plate,includes a plate main body having a disk shape and a second receptacle,to support first springs,. The second receptacles,are formed from that plate main body. The second receptacles,project in an axial direction from the plate main body so as to be able to seat the first spring,. The second receptacles,include axially supporting parts,to support an axially outside part of the first springs,, a radially outside supporting parts,to support a radially outside part of the first springs,, and second supporting parts,formed at both sides in a circular direction to support both ends of the first springs,. The radially outside supporting part,includes an intermediate part,, and curved indented end parts,which is located outward in a radial direction from the intermediate part,. The first and second retaining plates,and,are designed to maintain the thickness of the curved indented end parts,of the radially outside supporting parts,, thereby maintaining the durability of the second receptacles