Torsion-loaded rod-shaped component with different fibre reinforcements for tensile and compressive loading

US11078979B2 · kind B2 · utility

Assignees

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

Inventors

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

Key dates

• Filing date: Apr 14, 2015
• Grant date: Aug 3, 2021
• Expiry date: Dec 19, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2238/024
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A torsion spring may be configured as a torsion bar or a helical spring made of a spring wire made of fiber-composite material. The torsion spring may have a plurality of layers of fiber reinforcement that have been saturated with a matrix material, wherein the layers may have fibers that are tension-loaded and fibers that are compression-loaded. The at least one compression-loaded group may have a lower group stiffness than the tension-loaded group with the highest group stiffness. Methods for designing or making torsion springs made of fiber-composite material are also disclosed.