Bar-shaped component loaded in torsion

US10323710B2 · kind B2 · utility

Assignees

• ThyssenKrupp Federn und Stabilisatoren GmbH · DE
• thyssenkrupp AG · DE

Inventors

• Werner Hufenbach · Dresden, DE
• Jörn Kiele · Dresden, DE
• Martin Lepper · Dresden, DE
• Jens Werner · Coswig, DE

Key dates

• Filing date: Apr 13, 2015
• Grant date: Jun 18, 2019
• Expiry date: Apr 13, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2238/026
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A torsion spring may be formed as a bar spring or helical spring comprising a spring wire of fiber composite material. In some examples, the torsion spring comprises a number of layers of fiber reinforcement, which are impregnated with a matrix material. The layers may comprise tensile-loaded fibers and compression-loaded fibers. Groups of layers of the same loading direction may exist and, seen from an inside to an outside, the group stiffness of at least two groups may differ. Likewise, methods for making such torsion springs of fiber composite material are disclosed.