Vehicle brake device has pot-shaped piston containing ramp unit and connected to drive shaft connected to electric motor to move ramp unit to move brake disc with two linings inside casing

摘要

The device has a pot-shaped brake piston (3) that contains a ramp unit. The brake piston is arranged inside a casing (1) that holds a brake disc (17) and two brake linings (16,18). The brake piston is connected to a projecting end of a drive shaft (2), which is connected to an electric motor, and is moved by the ramp unit to move the brake disc. The ramp unit preferably has a set of cylinder rollers (8) between ramp discs (4,7) connected to the drive shaft and a threaded ring (11) in the casing.