The ornamental design for a constantvelocityjoint, as shown and described.
FIG. 1 is a front, left, top perspective view looking rearward of a portion of the constant velocity joint, with a cross hatch pattern shown on a portion of the device indicating that portion of the device to be colored orange;
FIG. 2 is a right, rear, top perspective view looking forward thereof;
FIG. 3 is a front elevational end view thereof, the rear elevational view forming no part thereof;
FIG. 4 is a left side elevatonal view thereof, the right side elevational, top plan view and bottom plan view being identical; and,
FIG. 5 is a perspective view of a portion thereof shown installed in a vehicle.