US 2003/0151177 A1Published application

Double rolling-lobe spring arrangement

AssigneeContiTech Luftfedersysteme GmbH

InventorsChristoph Bank, Paul Cerny, Gerhard Thurow, Peter Gonnheimer, Joachim Frey

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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.

Claims4

Dependent claims

A double rolling-lobe spring arrangement comprising:

first and second spring components coaxially mounted in opposition to each other;
said first spring component including a first rolling-lobe flexible member and a first roll-off piston;
said second spring component including a second rolling-lobe flexible member and a second roll-off piston;
said first and second rolling-lobe flexible members conjointly defining a common double rolling-lobe flexible member having an interior;
an outer jacket common to both of said first and second spring components;
said common rolling-lobe flexible member having a support ring arranged in said interior;
said support ring having an outer peripherally-extending surface having a radial recess formed therein;
said outer jacket having an inner peripherally-extending wall surface and a peripherally-extending raised portion formed on said wall surface;
and,
said raised portion and said radial recess conjointly defining a clamping contour interface with said flexible member being tightly held at said interface.

7 more elements

Dependencies are inferred from the claim text.