Patent ID: 8474798

Claim:
An air spring comprising at least one working chamber adapted to be filled with compressed air and at least partially delimited by a rolling bellows, the rolling bellows having portions rolling on an outer contour of a roll-off piston and portions rolling on an inner contour of a rigid external guide and being fastened at a first end to the roll-off piston and at a second end to a connecting part, with an axial gap extending between the external guide and the connecting part, the rolling bellows having a subsection with a first layer covering the axial gap, the subsection forming a cardanic fold, wherein the rolling bellows has at least one continuously manufactured folded-up layer of identical material as the portions rolling on the outer contour of the roll-off piston, the folded-up layer being arranged proximate the second end and extending across the entire axial gap, thereby forming a second layer of the subsection covering the axial gap, the first and second layers permanently adhering to each other and forming a reinforcing element structure fixed in a rubber matrix via a wall thickness of the rolling bellows.