Spring element

US4776573A · kind A · utility

Assignee

• Woco Franz-Josef Wolf & Co. GmbH · DE

Inventors

• Franz J. Wolf · Salmünster, DE
• Hubert Pletsch · Salmünster, DE

Key dates

• Filing date: Dec 4, 1985
• Grant date: Oct 11, 1988
• Expiry date: Dec 4, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/721
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A spring element comprises an elastomer block (5) interspersed with at least two sets of cylindrical or prismatic channels (1) which in turn intersect cavities (2) formed in the elastomer block (5), the greatest inside cross-section of which cavities in the plane located at right angles to the channel axis is greater than the cross-section of the channels in that plane, said sets of channels mutually crossing at different levels in space without mutually intersecting. By virtue of this mode of interspersing the elastomer spring element with cavities, an optimal distribution of compressive stresses in the spring element combined with an optimum acoustic damping are achieved.