Patent ID: 6749516
Filing Date: 2004-06-15
Classification: F16D,Y10S

Abstract:
A constant velocity transmission joint comprising:a male element having a plurality of arms; a female element defining a pair of facing tracks for each arm, said pair of tracks defining a longitudinal direction and said tracks are being situated on opposite sides of said arm; and, mounted on each arm, a mechanical transmission member movable along the longitudinal direction of said pair of tracks, being held axially by said tracks and establishing a connection with said arm that is swiveling and axially movable along an axis of the arm, said transmission member including a circularly symmetrical outer roller having a roller axis and disposed between the corresponding tracks to roll on one or the other of said tracks in direct contact therewith; wherein, for each arm, an outside profile in meridian half-section of the outer roller comprises two arcs having arcs both being concave or convex and cooperating with two substantially complementary arcs of the associated track to form two spaced-apart contact zones, each contact zone defining a contact resultant that is substantially perpendicular to the roller axis, such that the cooperating roller arcs and track arcs prevent the outer roller from tilting, relative to the tracks, about the longitudinal direction of the pair of tracks.