Self-servoing disc brake rotor

US6715589B2 · kind B2 · utility

Assignee

• Meritor Heavy Vehicle Systems Limited · US

Inventors

• Neil Williams · Cwmbran, GB
• Juergen Dreher · Mülheim-Kärlich, DE
• Roy Hayford · Redford, US
• Christos Kyrtsos · Southfield, US
• Wilfried Giering · Mendig, DE
• David L. Brademeyer · Dayton, US
• Gerald D. Anderson · Oxford, US

Key dates

• Filing date: Feb 9, 2001
• Grant date: Apr 6, 2004
• Expiry date: Feb 9, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2127/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A self-servoing disc brake assembly is provided that includes a driven rotor member having a first inner surface with a plurality of first pockets. The driven rotor member also includes a first friction surface spaced from the first inner surface. A movable rotor member is supported on the driven rotor member and is movable relative to the driven rotor member between non-servoed and servoed positions. The rotor members are spaced a first distance in the non-servo position, and the rotor members are spaced a second distance which is greater than a first distance in the servo position. The movable rotor member includes a second inner surface with a plurality of second pockets adjacent to the first inner surface and a friction surface spaced from the second inner surface. A plurality of balls are arranged between the first and second pockets with at least one of the first and second pockets being ramped. A friction member, such as a disc brake pad, is arranged adjacent to the second friction surface and is movable between engaged and non-engaged positions. The friction member is spaced from the second friction surface in the non-engaged position and the friction member is in contact w…