Patent ID: 6491138
Filing Date: 2002-12-10
Classification: F16D

Abstract:
A disk brake with sectional lining including a self-energized power brake, the disk brake comprising:a rotating brake disk having confronting faces and an axis; a U-shaped stationary caliper enclosing said brake disk from the outside, said caliper having poles; brake shoes disposed in said caliper, said brake shoes having support plates which are connected to a brake lining and are pivotally held in a bearing arrangement; actuation means disposed on said poles of said caliper for synchronously shifting and pressing said brake shoes against said faces of said brake disk, the radial distance between said bearing arrangement and said brake disk axis being larger than the radial distance between the centers of gravity of the application of force of said brake shoes and said brake disk axis so that said brake shoes are freely movable within limits and carry out a movement in the direction toward the circumference of said brake disk when pressed against said brake disk; inclined surfaces for a self-energized increase of the pressure of said brake shoes against said brake disk, said inclined surfaces being provided in the advance path of said brake shoes and extending radially and translate the forces directed toward the circumference of said brake disk into additional contact pressure forces by means of a wedge effect; and wedge plates comprising inclined surfaces on their inner sides which correspond to the inclined surfaces on the outer sides of said brake shoes, said wedge plates being disposed between said brake shoes and said poles of said caliper, wherein said wedge plates are held in said poles of said caliper by tappets so as to be transversely shiftable.