Patent ID: 7258330

Claim:
An air spring device comprising: at least one air spring bellows made of an elastomeric material and having two ends, said bellows enclosing a variable-volume air chamber; a cover with a first connection region for one end of the bellows; a rolling piston provided with a second connection region for the other end of the bellows; and a protective collar for the air spring bellows; wherein the cover encloses a pot-shaped basic component and a separate connecting component with a first connection region for one end of the bellows, the basic component and the connecting component being in direct contact with one another; a holder for the protective collar provided in a region of the cover, the holder being in direct contact with the connecting component; and a common tightening ring, two ends of the common tightening ring being fastened to each other by a connection, the ring holding together, from the outside and in a sealing manner, the basic component, the connecting component, and the protective collar holder.