Double rolling-lobe spring arrangement

US6905113B2 · kind B2 · utility

Assignee

• ContiTech Luftfedersysteme GmbH · DE

Inventors

• Christoph Bank · Lehrte, DE
• Paul Cerny · Wennigsen (Deister), DE
• Gerhard Thurow · Garbsen, DE
• Peter Gönnheimer · Waiblingen, DE
• Joachim Frey · Schorndorf, DE

Key dates

• Filing date: Dec 20, 2002
• Grant date: Jun 14, 2005
• Expiry date: Dec 20, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/0445
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A double rolling-lobe flexible member spring arrangement (2) includes two coaxial spring components (4a and 4b) which are arranged opposed to each other. The spring components essentially each include a rolling-lobe flexible member (6a and 6b) and respective roll-off pistons (8a and 8b). The two rolling-lobe flexible members (6 and 6b) define a common double rolling-lobe flexible member (6) and the two spring components (4a and 4b) have a common outer jacket (10). A reliable effective fixing of the flexible member (6) to the inner side of the outer jacket (10) is ensured. To provide this fixation, the double rolling-lobe flexible member (6) has a support ring (14) lying centrally on the inner side thereof and this support ring has a radial recess (16) on its periphery. The outer jacket (10) has a peripherally-extending raised portion at its inner periphery which engages into the recess (16) of the support ring (14) and defines a clamp contour.