Patent ES-8601428-A1 (ES)
Title: Friction clutch driven plate.
IPC: F16D13/64
Filed: 1984-06-11
Abstract: A friction clutch driven plate comprising a hub (11) and a friction facing carrier (17) arranged coaxially with respect to each other main torsional vibration damping springing acting through a lost motion connection (15 to 16) in a driving connection between the hub and carrier comprising circumferentially directed compression springs (28) arranged in windows (27) of a central annular member (13,14) and, in windows (24,25) in a pair of further annular members (18,19) secured together and spaced one to each side of the central member and auxiliary torsional vibration damping springing arranged in the driving connection between the hub and carrier characterised in tha that the auxiliary springing - comprises two circumferentially extending open-ended loop springs (37 and 38 or 51 and 52) one to each side of the central annular member, arranged to be laoded in bending with relative movement between the hub and the carrier during lost motion travel associated with the lost motion connection of the main springing. - (9pp) EPAB- EP-129978 B A friction clutch driven plate comprising a hub (11) and a friction facing carrier (17) arranged coaxially with respect to each other main torsional vibration damping springing acting through a lost motion connection (15 to 16) in a driving connection between the hub and carrier comprising circumferentially directed compression springs (28) arranged in windows (27) of a central annular member (13,14) and, in windows (24,25) in a pair of further annular members (18,19) secured together and spaced one to each side of the central member and auxiliary torsional vibration damping springing arranged in the driving connection between the hub and carrier characterised in tha that the auxiliary springing comprises two circumferentially extending open-ended loop springs (37 and 38 or 51 and 52) one to each side of the central annular member, arranged to be laoded in bending with relative movement between the hub and the carrier during lost motion travel associated with the lost motion connection of the main springing. (9pp) GBAB- GB2141206 B A friction clutch driven plate comprising a hub and a friction facing carrier arranged co-axially with respect to each other main torsional vibration damping springing acting through a lost motion connection in a driving connection between the hub and carrier comprising circumferentially directed compression springs arranged in windows of a central annular member and in windows in a pair of further annular members secured together and spaced one to each side of the central member, and auxiliary torsional vibration damping springing arranged in the driving connection between the hub and carrier wherein the auxiliary springing comprises two circumferentially extending spring arms one to each side of the central annular member, arranged to be loaded in bending with relative movement between the hub and the carrier during lost motion travel associated with the lost motion connection of the main springing. USAB- US4613030 A The friction clutch driven plate comprises a hub with a small integral flange and an outer flange portion coupled to the hub through a lost motion connection associated with interengaging teeth. - In addition to main torsional damping springing associated with springs in windows in the outer flange portion and side plates of a friction facing carrier, auxiliary circumferentially acting springing acts between the hub and the outer flange portion. - The auxiliary springing comprises two springs, one to each side of the hub flange. - The springs are circumferentially extending spring arms engaged in the hub and outer flange portion and together are much weaker than the main springs taken together and provide damping to prevent the idle rattle while the main springs provide friction damping during transmission of torque through the driven plate. - (7pp)