Plastic spring for a motor vehicle chassis

US8297600B2 · kind B2 · utility

Assignees

• ZF FRIEDRICHSHAFEN AG · DE
• LEICHTBAU-ZENTRUM SACHSEN GMBH · DE

Inventors

• Hendrik Marquar · Schweinfurt, DE
• Manfred Schuler · Irvine, US
• Josef Renn · Dettelbach, DE
• Klaus Stretz · Haßfurt, DE
• Karin Sundermann · Schweinfurt, DE
• Michael Zutzmann · Schweinfurt, DE
• Werner Hufenbach · Dresden, DE
• Martin Lepper · Dresden, DE
• Jens Werner · Coswig, DE
• Christian Kohler · Dresden, DE

Key dates

• Filing date: Sep 9, 2010
• Grant date: Oct 30, 2012
• Expiry date: Apr 26, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2230/0041
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A plastic spring having a corrugated tubular body with connection surfaces at its ends for transmitting force between two structural component parts which are movable relative to one another. A connection surface of the plastic spring is constructed as a tubular body which engages in a cup element of one of the supporting structural component parts. The cup element can be filled with a displacement mass, and the tubular body accordingly carries out a displacing movement within the cup element for axially adjusting the preloading of the plastic spring.