Patent ID: 6974005

Claim:
A vibration damper for a vehicle, said vibration damper comprising a pressure tube having a volume filled with a damping medium, a casing tube radially surrounding said pressure tube, a piston rod guide in said casing tube, a displacer which is axially moveable in said pressure tube cause said damping medium to flow, said displacer comprising a piston rod positioned in said piston rod guide, said piston rod being moveable in an outward direction from said pressure tube, a damping device which produces a damping force as a function of the movement of the displacer and flow of said damping medium through said damping device, and a damping force limiting device which limits said damping force, independently of the flow of damping medium, when said damping force exceeds a damping force threshold defined as a function of the vehicle, said force limiting device comprising means for exerting an elastic force which pretensions said piston rod guide toward said pressure tube, said piston rod guide being movable relative to said casing tube in said outward direction along an operating path against said elastic force when said damping force exceeds said damping force threshold.