Patent ID: 6986411

Claim:
Electromechanical brake, especially for vehicles, with an electrical actuator which generates an actuation force and acts on one friction member in order to press said member to elicit a friction force against a rotational component, which is to be braked, of the brake, and a self-boosting device arranged between the friction member and the electrical actuator, said device serving to self-boost the actuation force generated by the electrical actuator, and having at least one wedge ( 12 ), which has a wedge surface ( 14 ) arranged at a wedge angle (α) and supported on a corresponding counter bearing ( 16 ), wherein the electrical actuator displaces the wedge ( 12 ) relative to the counter bearing ( 16 ) in an actuation direction (x) to actuate the brake, and the wedge angle (α) is constant on a first segment ( 18 ) of the wedge surface ( 14 ), which is effective at the start of brake actuation, and greater self-boosting is provided by a second segment ( 20 ) which follows the first segment ( 18 ), the wedge angle (α) on the second segment being smaller than on the first segment ( 18 ).