Patent ID: 8517846

Claim:
A sliding-type tripod constant velocity joint comprising: an outer ring that has a cylindrical portion and that has three raceway grooves on an inner peripheral surface thereof, the three raceway grooves extending in a direction along a rotation axis of the outer ring; a tripod that has a boss portion coupled to a shaft and three tripod shaft portions that extend outward from an outer peripheral surface of the boss portion in a radial direction of the boss portion and that are inserted in the corresponding raceway grooves; an intermediate member that is provided around an outer periphery of a corresponding one of the tripod shaft portions so as to be rockable with respect to the corresponding one of the tripod shaft portions and that has a torque transmitting surface facing side surfaces of a corresponding one of the raceway grooves; a plurality of shaft-like rolling elements that are provided between the side surfaces of each raceway groove and a corresponding one of the torque transmitting surfaces so as to be rollable along the side surfaces of that raceway groove; and a cage that supports the corresponding rolling elements such that the rolling elements are able to circulate around an outer periphery of a corresponding one of the intermediate members, wherein the cage forms circulation paths that are trajectories of the circulating rolling elements and is formed of a pair of first circulation path forming member and second circulation path forming member that are coupled to face each other so as to respectively support both axial ends of the rolling elements, wherein at least one of the circulation path forming members includes a window portion that is open so as to be able to introduce the rolling elements into the circulation paths laterally with respect to a circulating direction, wherein an adjustable rib portion extends from a periphery of the window portion toward an introducing direction in which the rolling elements are introduced, and the rib portion is configured to be adjusted in a direction of an opening of the window portion such that the rolling elements supported by the cage do not pass through the window portion.