Abstract A friction clutch includes a driving disk, a driven disk and an intermediate disk which is spring-coupled to the driving disk for imparting rotation thereto. The intermediate disk has a surface of friction material for gripping the driver disk when the latter is shifted into engagement with the former. The opposite face of the intermediate disk is provided with a plurality of inclined lugs at its periphery which mate with corresponding inclined lugs on the driving disk. Upon engagement of the clutch, the spring coupling and inclined lugs serve to create an exchange of forces for making the maximum transmissible value of torque independent of variations in the coefficient of friction between the coupled surfaces.
A friction clutch comprising a first driving disk and a second driven disk, one of said disks being displaceable relative to the other one, a third disk being disposed between said disks and having cemented friction material to the face toward said second disk, said third disk being yieldable connected to the first disk through a plurality of equally circumferentially spaced helical springs, each having the axis substantially orthogonal to the one of the disks, the ends of each of said springs bearing the one on a projection of said first disk and the other one on a corresponding projection of said third disk, said first disk having a plurality of equally circumferentially spaced inclined planes cooperating with corresponding inclined planes situated on said third disk with respect to the first one in such direction as to compress said springs when said third disk is displaced toward the first one.
Claim 2
Dependent Claim
150 words
A friction clutch comprising a first driving disk and a second driven disk, one of said disks being displaceable relative to the other one, a third disk being disposed between said disks and having cemented friction material to the face toward said second disk, said third disk being yieldable connected to the first disk through a plurality of equally circumferentially spaced helical springs, each having the axis substantially orthogonal to the one of the disks, the ends of each of said springs bearing the one on a projection of said first disk and the other one on a corresponding projection of said third disk, said first disk having a plurality of equally circumferentially spaced inclined planes cooperating with corresponding inclined planes situated on said third disk with respect to the first one in such direction as to compress said springs when said third disk is displaced toward the first one.