Constant velocity joint

A constant velocity joint comprising at least:

• a first shaft (2) rotating about a first rotation axis (X1);
• a second shaft (3) rotating about a second rotation axis (X2),
• the first rotation axis (X1) and the second rotation axis (X2) intersect at a center (4) of the joint which is a point fixed relative to the first shaft (2) and relative to the second shaft (3);
• a first triad of yokes (5) comprising a control yoke (6), a first shaft yoke (7) and a second shaft yoke (8),
• the first shaft yoke (7) being pivotally mounted on the first shaft (2) with the respective first pivot axis (A1) passing from the center (4) of the joint and being oblique to the first rotation axis (X1), the second shaft yoke (8) being pivotally mounted on the second shaft (3) with the respective second pivot axis (A2) passing from the center (4) of the joint and being oblique to the second rotation axis (X2), the angle (f1) between the first pivot axis (A1) and the first rotation axis (X1) equals the angle (f2) between the second pivot axis (A2) and the second rotation axis (X2), the three yokes of the first triad of yokes (5) being pivotally mounted to each other to pivot about a first common axis (C) passing from the center (4) of the joint;
• a second triad of yokes (5′) comprising a control yoke (6′), a first shaft yoke (7′) and a second shaft yoke (8′),
• the first shaft yoke (7′) being pivotally mounted, on the first shaft (2) with the respective first pivot axis (A1′) passing from the center (4) of the joint, the second shaft yoke (8′) being pivotally mounted on the second shaft (3) with the respective second pivot axis (AZ) passing from the center (4) of the joint, the angle between the first pivot axis (A1′) and the first rotation axis (X1) equals the angle between the second pivot axis (A2′) and the second rotation axis (X2), the three yokes of the second triad of yokes (5′) being pivotally mounted to each other to pivot about a second common axis (C′) passing from the center (4) of the joint;
• a third triad of yokes (5″) comprising a control yoke (6″), a first shaft yoke (7″) and a second shaft yoke (8″),
• the first shaft yoke (7″) being pivotally mounted on the first shaft (2) with the respective first pivot axis (A1″) passing from the center (4) of the joint, the second shaft yoke (8″) being pivotally mounted on the second shaft (3) with the respective second pivot axis (A2″) passing from the center (4) of the joint, the angle between the first pivot axis (A1″) and the first rotation axis (X1) equals the angle between the second pivot axis (A2″) and the second rotation axis (X2), the three yokes of the third triad of yokes (5″) being pivotally mounted to each other to pivot about a third common axis (C″) passing from the center (4) of the joint,
• the control yoke (6) of the first triad of yokes (5), the control yoke (6′) of the second triad of yokes (5′) and the control yoke (6″) of the third triad of yokes (5″) are pivotally mounted to each other to pivot about a common axis (Z) perpendicular to the first common axis (C), to the second common axis (C′) and to the third common axis (C″) at the center (4) of the joint.