HYDRAULIC CONTROL DISK BRAKE COMPRISING A HYDRAULIC ACTUATION PARKING BRAKE

摘要

The invention relates to a disk brake that comprises a caliper (12), a main piston that is slidably mounted in a main hydraulic cavity of the caliper, a piston rod (120), and a wheel (140) for axially locking the piston rod (120). Said disk brake is characterized in that the locking wheel (140) is rotated by an electric motor (166) via an irreversible mechanical transmission (176, 144) in such a way that the locking wheel (140) is kept rotationally stationary when an output shaft (168) of the electric motor (166) is not rotated.