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 (41d, 42d) facing side surfaces (14b, 15b) of a corresponding one of the raceway grooves; a plurality of shaft-like rolling elements that are provided between the side surfaces (14b, 15b) of each raceway groove and a corresponding one of the torque transmitting surfaces (41d, 42d) so as to be rollable along the side surfaces (14b, 15b) of that raceway groove; and a cage (60; 160) 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 (60; 160) forms circulation paths that are trajectories of the circulating rolling elements; characterized in that the cage (60; 160) and is formed of a pair of first circulation path forming member (70; 170) and second circulation path forming member (80; 180) that are coupled to face each other so as to respectively support both axial ends of the rolling elements characterised in that, at least one of the circulation path forming members (70, 80; 170, 180) has a window portion (75, 85; 175, 185) that is openable so as to be able to introduce the rolling elements into the circulation paths laterally with respect to a circulating direction and a rib portion (76, 86; 176, 186) that is formed so as to extend from a periphery of the window portion (75, 85; 175, 185) toward an introducing direction in which the rolling elements are introduced, and wherein the rib portion (76, 86; 176, 186) is bendable so as to be crushed and plastically deformable toward an opening of the window portion (75, 85; 175, 185), such that the rolling elements do not pass through the window portion (75, 85; 175, 185) after the rolling elements are introduced into the circulation paths. 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 (41d, 42d) facing side surfaces (14b, 15b) of a corresponding one of the raceway grooves; a plurality of shaft-like rolling elements that are provided between the side surfaces (14b, 15b) of each raceway groove and a corresponding one of the torque transmitting surfaces (41d, 42d) so as to be rollable along the side surfaces (14b, 15b) of that raceway groove; and a cage (60; 160) 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 (60; 160) forms circulation paths that are trajectories of the circulating rolling elements; characterized in that the cage (60; 160) and is formed of a pair of first circulation path forming member (70; 170) and second circulation path forming member (80; 180) that are coupled to face each other so as to respectively support both axial ends of the rolling elements at least one of the circulation path forming members (70, 80; 170, 180) has a window portion (75, 85; 175, 185) that is openable so as to be able to introduce the rolling elements into the circulation paths laterally with respect to a circulating direction and a rib portion (76, 86; 176, 186) that is formed so as to extend from a periphery of the window portion (75, 85; 175, 185) toward an introducing direction in which the rolling elements are introduced, and wherein the rib portion (76, 86; 176, 186) is bendable so as to be crushed and plastically deformable toward an opening of the window portion (75, 85; 175, 185), such that the rolling elements do not pass through the window portion (75, 85; 175, 185) after the rolling elements are introduced into the circulation paths.