Patent ID: 8827053

Claim:
A self-amplifying electromechanical partial lining disc brake, comprising: a friction brake pad ( 14 ); a brake disc ( 16 ); an electromechanical actuating device ( 36 , 38 ), which presses the friction brake pad ( 14 ) against the brake disc ( 16 ) to actuate the partial lining disc brake ( 10 ); and a self-amplification device equipped with a ramp mechanism ( 24 , 28 ), the ramp mechanism ( 24 , 28 ) supporting the friction brake pad ( 14 ) in a movable fashion in a circumferential direction and at a ramp angle in relation to the brake disc ( 16 ), the self-amplification device converting a friction force exerted by the rotating brake disc ( 16 ) on the friction brake pad ( 14 ) pressed against the brake disc ( 16 ) during braking into a pressing force that presses the friction brake pad ( 14 ) against the brake disc ( 16 ) in addition to a pressing force exerted by the actuating device ( 36 , 38 ), the ramp mechanism having three ramps ( 28 ) along which roller elements ( 24 ) roll and which support the friction brake pad ( 14 ), the roller elements ( 24 ) being situated at the corners of an imaginary triangle ( 34 ), wherein the actuating device ( 36 , 38 ) exerts a force on the friction brake pad ( 14 ) at an angle to the brake disc ( 16 ) along a line of action that passes through the imaginary triangle between and apart from the roller elements ( 24 ), wherein the ramps ( 28 ) have a transverse inclination, and the transverse inclination of a ramp ( 28 ) that is spaced a smaller distance apart from the rotation axis of the brake disc ( 16 ) is inclined in the opposite direction from the transverse inclination of a ramp ( 28 ) that is spaced a larger distance apart from the rotation axis of the brake disc ( 16 ).