Electrically actuated friction brake

An electrically actuated friction brake comprising:

• a brake pad that exerts a pad pressing force during brake action;
• an electric actuator configured to hold the brake pad in a released state;
• a first transmission element connected to the brake pad;
• a spring that biases the first transmission element toward a brake action position and that is configured to cause rotation of the first transmission element about a rotation angle;
• a second transmission element having an elevation curve and being rotated by the electric actuator,
• a coupling element connected to the first transmission element and being movable relative to the brake pad;
• and
• a follower element arranged on the coupling element and being configured to follow the elevation curve under action of the electric actuator when the electric actuator rotates the second transmission element,
• wherein, in case of loss of power, the spring causes movement of the first transmission element which, in turn, causes the brake pad to exert brake action.

An electrically actuated friction brake comprising:

• a brake pad that exerts a pad pressing force during brake action;
• an electric actuator;
• a coupling element that is movable relative to the brake pad;
• an eccentric element arranged between the brake pad and the coupling element;
• a spring capable of applying a force sufficient to cause brake action;
• a transmission element having an elevation curve and being rotated by the electric actuator;
• and
• a follower element coupled to the coupling element and being configured to follow the elevation curve under action of the electric actuator when the electric actuator rotates the transmission element,
• wherein, in case of loss of power, the eccentric element is caused to move which, in turn, causes the brake pad to exert brake action.