Low-consumption clutch actuating mechanism for electronic cylinders in locks and method for operating the same

A clutch actuating mechanism of an electronic cylinder for locks for controlling the transmission of a rotational movement by way of clutch elements between a first rotor, in the interior of which the clutch mechanism is situated, and a second rotor which, with the rotation thereof, transmits a movement to an eccentric, in a cylinder body, comprising:

• an electric motor which actuates a drive axle which is coaxial to a first axis and which rotates in two directions;
• a first body installed in an inseparable manner on said drive axle and which comprises a cam and first pushing means;
• a second body coaxial to said first axis, arranged after said first body and which comprises first drive means and brake means;
• a third body coaxial to the first axis, arranged after said second body and on which the clutch elements act, wherein said third body rotates between a declutched position, in which the movement is not transmitted between the first and second rotor and a clutched position, in which the movement is transmitted between the first and second rotor;
• a moving brake element which has a protrusion at one end, said protrusion being associated with said cam of the first body;
• a first elastic element in contact with said brake element for controlling the position of the same in relation to the cam of the first body and in relation to the brake means of the second body;
• and
• a second elastic element between the second body and the third body and connected to both,
• by means of which a rotation in a first direction of the drive axle produces a rotation of the first body between an initial position and a final position and produces a transmission of a rotational movement from said first body to the second body and from the second body to the third body with a smaller rotational angle than that of the second body, causing an elastic load of the second elastic element.