Patent ID: 6905113

Claim:
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 annular outer jacket defining an interior space and being common to both of said first and second spring components for laterally restraining and supporting said common double rolling-lobe flexible member; said annular outer jacket being disposed in spaced surrounding relationship to said first and second roll-off pistons so as to accommodate said first and second roll-off pistons in said interior space as said pistons move relative to said annular outer jacket in said interior space; a support ring arranged in said interior of said common double rolling-lobe flexible member; 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 inwardly-projecting raised portion formed on said wall surface; said inwardly-projecting raised portion and said radial recess conjointly defining a clamping contour interface with said common double rolling-lobe flexible member being tightly held at said interface with said common double rolling-lobe flexible member being clamped by said outer jacket and said support ring so as to permit said annular outer jacket to perform a dual function of laterally restraining and supporting said common double rolling-lobe flexible member and securing said common double rolling-lobe flexible member from slipping on said peripherally-extending wall surface relative to said annular outer jacket during operation of said spring arrangement; said radial recess being a first radial recess and said raised portion being a first raised portion; and, said clamping contour interface being a first clamping contour interface; said support ring having a second radial recess formed in said outer peripherally-extending surface; said outer jacket having a second peripherally-extending raised portion formed on said wall surface; and, said second raised portion and said second radial recess conjointly defining a second clamping contour interface with said common double rolling-lobe flexible member being tightly held also at said second clamping contour interface.