Piston with caged spring for tandem main cylinder of vehicle braking system is made of plastic with catch formed of piece with piston enabling limit stop to be positioned precisely against lengthwise axis of piston

摘要

The spring (35) is supported at one end directly on the piston (54) and at the other against the holding device (45) which can be pushed onto the piston, whose motion towards the piston is limited by a catch (55) formed of a piece with the piston and a limit stop (58), located at the free end of the catch. The piston is made of plastic and has means to enable the limit stop to be positioned precisely in an axial direction against the lengthwise axis (L) of the piston.