Constant velocity universal joint

US5507693A · kind A · utility

Assignee

• Lohr & Bromkamp GmbH

Inventors

• Peter Schwarzler · Goldbach, DE
• Volker Bergmann · Riedstadt, DE
• Dieter Burghardt · Wiesbaden, DE
• Norbert Hofmann · Ronneburg, DE
• Michael Ricks · Nidderau, DE
• Hans-Heinrich Welschof · Rodenbach, DE

Key dates

• Filing date: Jul 13, 1993
• Grant date: Apr 16, 1996
• Expiry date: Jul 13, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S464/905
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A constant velocity universal joint of the tripod type has an outer joint part with three axially extending, circumferentially distributed longitudinal recesses with circumferentially distributed opposed tracks. The tracks have surfaces which are grooved so as to have the shape of a circular cylindrical portion. An inner joint part includes three radial circumferentially distributed arms each engaging one of the longitudinal recesses and carrying roller assemblies having roller carriers and roller elements. The roller elements have running faces in the shape of a spherical portion and are axially guided so as to roll on the tracks in the longitudinal recesses of the outer joint part. The roller carriers are guided on the arms so as to be pivotable and longitudinally movable relative to the respective arm axis. The roller elements are coaxially supported on the roller carriers so as to be rotatable, with the roller assemblies consisting of the roller carriers and roller elements, to prevent them from tilting relative to the outer joint part, are supported on the base of the recesses and on longitudinally extending guiding shoulder faces of the outer joint part which radially inwardl…