Convoluted boot

US5094894A · kind A · utility

Assignee

• GKN Automotive Limited · DE

Inventors

• Thomas Schafferus · Rheinberg, DE
• Karl-Heinz Muller · Wissen, DE

Key dates

• Filing date: Oct 26, 1990
• Grant date: Mar 10, 1992
• Expiry date: Oct 26, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/139
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A convoluted boot made of a thin-walled thermoplastic elastomer with at least one collar region which, on its inside, has an internal annular bead engaging a flat annular groove of a universal joint with a rectangular or trapezoidal cross-section, where at least the one collar region, on its outside, has an annular groove with a rectangular or trapezoidal cross-section for tensioning element, which annular groove is provided with a substantially flat bottom part resting against the tensioning element and is wider than the internal annular bead, and the collar region, within the flat annular groove in the region of the internal annular bead, has at least one recess-like annular gap with a rectangular or trapezoidal cross-section whose cross-sectional depth is greater than its width.