Brake disc

US6073735A · kind A · utility

Assignee

• Aluminium Rheinfelden GmbH · DE

Inventors

• Siegfried Botsch · Grafenau, DE
• Hubert Koch · Rheinfelden (Baden), DE

Key dates

• Filing date: Sep 10, 1998
• Grant date: Jun 13, 2000
• Expiry date: Sep 10, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2250/0015
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A brake disc (10) has a cover (12) made of a cast aluminium alloy and a brake ring (14) made of cast steel or cast iron. The cover (12) is cast onto pockets (22) which have a radially inwardly facing pocket opening next to the pocket edge (26), formed on the internal circumference (U.sub.i) of the brake ring, creating a radial distance (b) between the cover (12) and the brake ring (14). The pocket edge (26) is surrounded by the cast cover (12) and the pockets (22) are substantially filled with the cast aluminium alloy. Because of this method of connecting the brake ring (14) to the cover (12), umbrella-like distortion can be largely avoided.