TRIPODE TYPE CONSTANT VELOCITY RATIO UNIVERSAL JOINTS

摘要

A tripode type constant velocity ratio universal joint, comprising a first joint member (10) having a rotational axis (12) and three tracks (14) circumferentially spaced about its rotational axis and extending lengthwise of the joint member; a second joint member (11) having a rotational axis and three arms (21) circumferentially spaced about such axis and extending into the tracks of the first joint member; each arm carrying a respective roller (22) having an axis and an external surface which is a surface of revolution about said axis and which engages opposed side portions of the associated track, each roller having its orientation constrained relative to one joint member and being able to move within its associated track such that the first and second joint members are able to undergo articulation relative to one another; wherein, as the joint is viewed axially in cross section, the axis of each roller (22) does not intersect the axis of rotation of the joint member relative to which its orientation is constrained.