| 摘要 |
The invention concerns a constant velocity tripod joint for motor vehicle transmission systems comprising a male element (2) including several branches (4), a female element (8) defining for each branch a pair of tracks (9A, 9B), symmetrical with respect to a plane (P), and, mounted on each branch, a mechanical transmission member (11) comprising an outer roller (12) designed to run on one of the corresponding tracks. Each track comprises a central zone (14A, 14B) having a rectilinear transverse profile and inclined at an angle alpha relative to the plan (P) and a bearing (15A, 15B) for maintaining the roller radially. Each roller has a peripheral surface whereof the central zone (31) is conical and matching the central zones of the tracks, and a front surface (32) adapted to be urged into contact more or less perpendicularly with said bearing surfaces of the tracks under the effect of a driving torque. The invention is applicable to constant velocity tripod joints for transmission systems in motor vehicles. |
