Patent ID: 7695371
Filing Date: 2010-04-13
Classification: F16D,Y10S

Abstract:
1. A tripod constant velocity universal joint having a tubular outer member coupled to a transmission shaft and having a plurality of guide grooves defined in an inner circumferential surface thereof spaced at predetermined intervals from each other and extending in an axial direction, and an inner member inserted in an open inner space of said outer member and coupled to another transmission shaft, comprising: a spider having a hole defined centrally therein for mounting said other transmission shaft, and having first through third trunnions projecting toward said guide grooves; ring-shaped rollers held in contact with said guide grooves and fitted respectively over said first through third trunnions; and a plurality of rolling members rollingly interposed between said first through third trunnions and said rollers, wherein said first through third trunnions have respective axes, which are inclined with respect to a plane perpendicular to the axis of said other transmission shaft, wherein a tilt angle of at least one of said trunnions is different from tilt angles of the other two trunnions, the three axes of said first through third trunnions being positioned in the same plane, and wherein the hole defined in said spider has an axis that extends non-perpendicularly across the plane containing the three axes of said first through third trunnions.