Rolling-lobe air spring

Details Rolling-lobe air spring Rolling-lobe air spring

2007-06-05

2007-06-05

Williams, Thomas (Department: 3683)

Spring devices

Vehicle

Comprising compressible fluid

C267S035000, C267S122000

Reexamination Certificate

active

10414052

ABSTRACT:
An air spring includes a flexible member, a roll-off piston and a cover plate. The piston includes a slot at its upper end for receiving the end of the flexible member applied with the aid of a clamp ring. The piston includes a flange for deflecting the flexible member. The outer diameter of the flange corresponds approximately to the outer diameter of the clamp ring and the roll-off diameter of the piston. The flexible member is tapered at its lower region to avoid an uncontrollable collapse in the pressureless state of the air spring or a sharp snap-in of the flexible member exiting from the attachment. The flexible member exits at approximately 90° in the radial direction from the attachment. The peripheral slot and the flange are so configured that, in the pressureless state, a clear diameter jump is present between clamping diameter and diameter of the remainder of the flexible member.

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