The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 1996
Filed:
Jul. 13, 1993
Peter Schwarzler, Glattbach, DE;
Volker Bergmann, Stockstadt, DE;
Dieter Burghardt, Wiesbaden-Biebrich, DE;
Norbert Hofmann, Rodgau, DE;
Michael Ricks, Bad Vilbel, DE;
Hans-Heinrich Welschof, Rodenbach, DE;
Lohr & Bromkamp GmbH, Offenbach/Main, DE;
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 inwardly adjoin the tracks, with the roller elements, on their respective radial insides, each including an annular shoulder face which adjoins the running face in the shape of a spherical portion and which provides the supporting contact between the respective roller assembly and the guiding shoulder faces.