Patent ID: 8272627

Claim:
An air spring device ( 1 ) having an air spring bellows ( 4 ) made of elastomer material, an air spring cover ( 2 ) and an air spring piston ( 3 ), the air spring bellows ( 4 ) having an operating state in which it is substantially self-supporting and being attached in an airtight fashion by a first end to the air spring piston ( 3 ) so as to form a first rolling fold ( 13 ), and by a second end to the air spring cover ( 2 ) so as to form a second rolling fold ( 14 ), and together with the air spring cover ( 2 ) and the air spring piston ( 3 ) forming a hollow chamber ( 12 ) with an elastic volume, the air spring device ( 1 ) having a sleeve-shaped external guide ( 5 ) with an axial section of constant internal diameter, the external guide ( 5 ) tangentially surrounding the air spring bellows ( 4 ) between the first rolling fold ( 13 ) and the second rolling fold ( 14 ), and at least one internal clamping ring ( 16 ) which is arranged inside the air spring bellows ( 4 ), the external guide ( 5 ) being fastened to an external surface of the air spring bellows ( 4 ) within the axial section of constant internal diameter using the internal clamping ring ( 16 ), wherein the internal clamping ring ( 16 ) has an external diameter ( 17 ) and the air spring bellows has an external diameter, wherein the external diameter ( 17 ) of the internal clamping ring ( 16 ) is larger than the external diameter ( 18 ) of the air spring bellows ( 4 ) in a unassembled state, and the internal clamping ring ( 16 ) produces a circumferential, radially outward protrusion ( 19 ) when the air spring bellows is unpressurized, which protrusion has a diameter corresponding substantially to the internal diameter of the external guide ( 5 ), and wherein the internal clamping ring is secured relative to the air spring bellows by radial restoring forces of the air spring bellows.