| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the weight of a constant velocity universal joint attached to an outboard side of a drive shaft, to reduce costs, and to provide the constant velocity universal joint suitable for such purposes..SOLUTION: A constant velocity universal joint comprises: an inside joint member 1 formed with an inside torque transmission face 11; an outside joint member 2 formed with an outside torque transmission face 21; and a torque transmission member 3 having an inside face 3a contacting with the inside torque transmission face 11, and an outside face 3b contacting with the outside torque transmission face 21. The inside torque transmission face 11 is a spherical face having curvature centers C1 to C3 at a position that is offset in an equal distance from a joint center O, the inside torque transmission face 11 is composed of a plurality of groups having the curvature centers C1 to C3 at different positions with two groups having the same curvature centers C1 to C3 as one group, and the torque transmission member 3 moves to the direction of a joint center line with respect to the outside joint member 2 in a state that the inside face 3a of the torque transmission member is fit to the inside toque transmission face 11.</p> |
