Patent ID: 7966854

Claim:
A clutch mechanism for an electromechanical cylinder of a lock; the electromechanical cylinder—internally and axially comprising a rotor, said clutch mechanism comprising a clutch configured to be contained in the rotor and to interlock the rotor with a clutch disc on which is fixed an eccentric, the rotation of which produces the actuation of a bolt of the lock, wherein the clutch comprises a carriage axially displaceable by a spindle coupled to an output of an electromagnetic motor; when the carriage comprises a carriage cover, a base and a U shaped elastic element, which comprises unequal side arms and is located in an elastic element housing established in an inner face of the base, so that a longer side arm of the unequal side arms of the U shaped elastic element is positioned in one of valleys of the spindle; wherein the carriage cover is fixed to said base by screws; wherein between said base and said carriage cover, the carriage further comprises two springs axially arranged, said two springs having first ends resting on an inner face of the carriage cover and second ends partially housed in end housings belonging to clutch pins, which are able to occupy a non-operating and withdrawn position with respect to a rotor cover, or an operating and emerging position passing through holes made in the clutch disc to which is fixed the eccentric for actuation of the bolt of the lock; wherein a pair of rods emerge from an inner face of the rotor cover and render the carriage unable to rotate, said rods further constituting a guide to guide the carriage with minimal friction during axial displacement of the carriage.