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US 6,200,224 B1Granted
Slidable constant velocity universal joint
AssigneeNtn Corporation
InventorsTatsurou Sugiyama, Shigeyoshi Ishiguro, Hisaaki Kura
Life of this patent
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AssigneeNtn Corporation
InventorsTatsurou Sugiyama, Shigeyoshi Ishiguro, Hisaaki Kura
Estimating the term…
This slidable constant velocity universal joint comprises an outer joint member 1, and a tripod member 4 having a plurality of axially extending leg shafts 5 and outer rings 3 which are rotatably fitted on the leg shafts 5 and whose outer peripheries 3b are spherical. The tripod member 4 is received inside the outer joint member 1, and the outer rings 3 of the tripod member 4 are fitted in track grooves 2 in the outer joint member 1 so that they are slidable axially of the outer joint member. A sliding contact region S where relative sliding between the outer ring 3 and the leg shaft 5 in the leg shaft direction occurs is defined between the outer ring 3 and the leg shaft 5, and the outer ring 3 is allowed to swing around the axis of the leg shaft 5. The center of curvature O of the outer periphery of the outer ring 3 coincides with the sliding contact region S, thereby preventing the outer ring 3 from exhibiting unstable behavior before and after specific phases (0°, 180°).
A slidable constant velocity universal joint comprising an outer joint member having a plurality of axial track grooves formed in the inner periphery thereof, a tripod member having a plurality of radially extending leg shafts and torque transmitting members which are rotatable about said leg shafts and whose outer peripheries are spherical, said tripod member being received in the inner periphery of said outer joint member, with the torque transmitting members of the tripod member being fitted in the track grooves of the outer joint member for sliding movement axially of the outer joint member, a sliding contact region defined between each torque transmitting member and each leg shaft where relative sliding occurs in the leg shaft direction, thereby allowing the torque transmitting members to swing around the axis of the leg shafts,
Dependencies are inferred from the claim text.