| 摘要 |
A friction roller is disposed in a full toroid groove formed by an an input disk and an output disk opposing each other, in contact with both the disks tiltably and rotatably. A roller supporting member for rotatably supporting the friction roller through bearings includes a rotary shaft portion having a ball joint at one end thereof, and the ball joint is rotatably held by a race joint and a cover joint formed at one end of a piston rod of a hydraulic cylinder constituting a driving mechanism. A lubricant spraying portion is fromed at the other end of the rotary shaft portion, and a lubricant is supplied to the lubricant spraying portion from a pressure chamber of the hydraulic cylinder through oil paths formed in the piston rod and the rotary shaft portion. The lubricant is sprayed from the lubricant spraying portion onto a contact surface of the friction roller with the disk, and onto the bearings to achieve lubrication and cooling.
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