Zf Friedrichshafen Ag

Klaus Lieblein

Günther Handke

Stefan Hochgesang

Thomas Frank

A method for fastening a rebound stop to a piston rod of a vibration damper positioned at a piston rod and axially supported with a first tool. A second tool component having a press-in surface that presses the tubular portion of the rebound stop into the circumferential groove of the piston rod. The first and the second tool carry out an movement toward one another. At least one tool presses the tubular portion of the rebound stop into the circumferential groove of the piston rod. The pitch angle of the press-in surface varies over the axial longitudinal extension of the press-in surface. As the distance between the tools decreases, the force ratio between the axially directed pressing force and the radially directed pressing force changes such that the axially directed pressing force decreases and the radially directed pressing force increases.

Method for fastening a rebound stop to a piston rod of a vibration damper

A damping valve arrangement for a vibration damper includes a damping valve body, which has at least one through-flow opening for the damping medium, and at least one valve disk which at least partly covers the through-flow openings under the influence of a closing force. The damping valve arrangement includes at least one spring element which has at least one supporting portion axially supported at another structural component part of the damping valve arrangement, and at least one spring portion disposed at a distance from the supporting portion and which introduces a spring force into the valve disk at least indirectly, wherein the spring force of the spring element is directed counter to the closing force acting on the valve disk, and wherein the spring force of the spring element is less than the closing force of the valve disk.

Growing community of inventors

Dittelbrunn, Germany

Klaus Lieblein