Patent ID: 8607953

Claim:
A clutch, adapted to transmit motion from a driving shaft to a driven shaft, having an axis of rotation coaxial to said driven shaft and comprising: a ring gear, adapted to receive the motion from said driving shaft and coaxial to said axis of rotation; a first bell integral in rotation with said ring gear and coaxial to said axis of rotation; an axially fixed hub internal to said first bell and coaxial to said axis of rotation, said hub being adapted to be connected in rotation to said driven shaft; a pressure assembly, axially movable, including a disk-pusher element, a disk pack, including a plurality of driving disks integral in rotation with respect to said first bell alternated with a plurality of driven disks, said disk pack being coaxial to said axis of rotation and being comprised between said axially fixed hub and said disk-pusher element, a plurality of elastic elements, designed to cause a separation of said disk-pusher element from said axially fixed hub and from said disk pack; and a centrifugal assembly, including a mass carrier and a plurality of centrifugal masses, said centrifugal assembly being coaxial to said axis of rotation and being integral in rotation with a second bell, said second bell being moreover integral in rotation with said first bell, said centrifugal assembly being axially co-operating with said pressure assembly to cause an axial compression of said disk pack, at least one first clearance-recovery device of a unidirectional type, adapted to limit the separation of said disk-pusher element from said axially fixed hub and from said disk pack, and a second clearance-recovery device of a unidirectional type, adapted to permit an axial movement of said centrifugal assembly only towards said disk-pusher element.