TRIPOD-TYPE CONSTANT-VELOCITY UNIVERSAL JOINT

WIPO Patent Application WO/2023/189289

A1

In the present invention, an escape part 36, at which the tooth height of a female spline 34 is reduced, is provided to the inner circumference of the one-side end of a tripod member 3 in the axial direction. B/A>0.28 and C/D>0.23 are set, where: A represents the axial-direction distance from the one-side end surface of the tripod member 3 in the axial direction to a plane R including the axial center of each leg shaft 32; B represents the axial-direction distance from the one-side end surface of the tripod member 3 in the axial direction to the deep-side end P of the escape part 36; C represents the thickness of the tripod member 3 in a radial direction at the deep-side end P of the escape part 36 on an axial-direction cross-section that includes a joint axial center O and an intermediate part 33 and that extends in the tangential direction of a circle about the axis of a corresponding one of the leg shafts 32; and D represents the diameter of a tooth bottom 34a of the female spline 34.

WO/2002/026418	METHOD AND DEVICE FOR MOULDING A TRIPOD SPIDER
JP2008144226	CONSTANT-VELOCITY UNIVERSAL JOINT EXCELLENT IN ROLLING FATIGUE CHARACTERISTIC, AND ITS MANUFACTURING METHOD

ITAGAKI TAKU (JP)
SUGIYAMA TATSURO (JP)
KAWATA SHOTA (JP)

PCT/JP2023/008604

October 05, 2023

March 07, 2023

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NTN TOYO BEARING CO LTD (JP)

F16D3/205

JP2016523346A	2016-08-08
JP2017166576A	2017-09-21
JP2002195284A	2002-07-10
JP2012241795A	2012-12-10

SHIROMURA Kunihiko et al. (JP)

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