Patent ID: 7753799
Filing Date: 2010-07-13
Classification: F16D,Y10S

Abstract:
1. A constant velocity joint comprising: a male element having multiple arms; a female element having a central axis (X′-X′) and defining, in respect of each arm, a pair of opposed tracks situated on either side of said arm and being symmetrical in relation to a radial longitudinal plane (P) of the female element; and mounted on each aim, a mechanical transmission unit comprising an inner ring arranged within an outer rotating roller and a mechanism for coupling the inner ring and the outer roller enabling them to pivot relatively on a common axis of revolution (Z-Z), the inner ring being mounted so as to plunge and slide in relation to the arm, the outer roller being adapted to roll on one or other of the corresponding tracks via a peripheral rolling surface of circular cross-section, the female element further comprising at least one bearing surface which keeps the roller from becoming displaced radially outwards, wherein for each arm, each track and the rolling surface are capable of being contacted at not less than one first (Z a cross profile of the track is rectilinear or convex, at least at the second contact point (Z a cross profile of the rolling surface is rectilinear or convex, at least at the second contact point (Z a cross profile of the track is concave at the first contact point (Z