ES439040A1 - Unitary assembly for a diaphragm spring clutch - Google Patents

Abstract

Unitary assembly for diaphragm clutch, mainly for motor vehicles, of the type that comprises a first globally annular part, called a cover, capable of being attached by its external periphery to a first plate, called a reaction plate, and of being joined in rotation to a second plate, called a pressure plate, a second globally annular part, called a diaphragm, comprising a peripheral part that forms a spring washer, of the Belleville type, to act on said pressure plate, and a central part formed by fingers Radials separated two by two by preceding grooves of passages made in the internal periphery of said peripheral part, to drive a mobile control part, called a release bearing, and an O-ring mounting that pivotally holds said diaphragm to said cover, transversely presenting said mounting o-ring, on both sides of a a globally axial central part, on the one hand, a circularly continuous wing, which rests against any one of the two diaphragm cover organs, and, on the other hand, a circularly fragmented wing with cutouts in a plurality of legs, each of which passes through one of the diaphragm passages to rest against the other of the aforementioned diaphragm cover members, said unitary assembly being characterized by the fact that elastic means of axial action are associated with the aforementioned o-ring mounting, to confer axial elasticity to the assembly that guarantees, the aforementioned elastic means of axial action being under pretensioning and presenting a load greater than that of said diaphragm at the level of said declutch bearing. (Machine-translation by Google Translate, not legally binding)