STEEL BRAKE PISTON FOR A HYDRAULIC BRAKE

• Main Authors: LEIDECKER NORBERT, KLACIK MARTIN, SCHMIDT TOBIAS, WURZ MATTHIAS, MULLER MATTHIAS, ZEIBIG UWE, LORENZ ULRICH, BAUERSFELD RICO
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2019
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention relates to a pot-shaped cold-formed steel brake piston (1) as a pot that is open on one side and has a base (2) and a wall (3) including an inner and outer wall (4, 5), a radially inwardly formed groove (6) that is radially outwardly open and radially inwardly forms a groove bead protrusion (7), and wherein the open side of the pot terminates in a bearing for a friction lining back plate (11), and has internally integrated interfaces at the end which function a) for fixing between the friction lining and steel brake piston (1) and b) as a support bearing for spring cushioning thefriction lining. The object of the invention is a further improved new generation steel brake piston (1). According to the invention, the object is achieved in that the minimum internal diameter (dimin) is set back in the direction of the base (2) at least by several times the length of a wall thickness (s), and in that the minimum piston inner diameter (dimin) is designed for forming an undercutfrom the groove bead prot