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1. 发明专利

JPH11182570A CONSTANT VELOCITY JOINT 失效
公开(公告)号：JPH11182570A
公开(公告)日：1999-07-06
申请号：JP34959597
申请日：1997-12-18
申请人： TOYODA MACHINE WORKS LTD
发明人： UNO YOSHITO , MASUDA TOSHIYA , HANJI YOSHIHIRO , ICHIKAWA KAZUYUKI
IPC分类号： F16D3/20 , F16D3/227 , F16D3/226
摘要： PROBLEM TO BE SOLVED: To provide a constant velocity joint without increasing the size of a cage, and capable of ensuring a low slide zone in a wide range. SOLUTION: The center of curvature of an outer circumferential surface 18 of an inner joint member 12 of a constant velocity joint 10 is an arbitrary point O on the axis L to be driven. An inner circumferential surface 17 of a cage 13 connects a cylindrical surface 17a having the axial length A of a central part to a partial spherical surface 17b located on each side. The centers of curvature O4, O5 demarcate the cylindrical surface 17a from the partial spherical surface 17b, and are arranged at the position offset by the distance D in the radial direction from the axis L on the line orthogonal to the axis L to be driven. The radius R of curvature of the partial spherical surface 17b is larger than the radius (r) of curvature of the spherical surface of the outer circumferential surface of the inner joint member 12 (R>r). A clearance G1 in the axial direction to permit the axial displacement of the inner joint member 12 is formed between the inner joint member 12 and the cage 13.

2. 发明专利

JP2000220655A TRIPOD JOINT 失效
公开(公告)号：JP2000220655A
公开(公告)日：2000-08-08
申请号：JP2489399
申请日：1999-02-02
申请人： TOYODA MACHINE WORKS LTD
发明人： OWAKI TOMONORI , HANJI YOSHIHIRO , KOBAYASHI HIDEKI
IPC分类号： F16D3/205
摘要： PROBLEM TO BE SOLVED: To provide a tripod joint which can secure the inner diameter of a roller without impairing the assemblage of a snap ring, and can obtain a constant velocity joint, compact, high in transmission capability high in capacity. SOLUTION: A roller 4 is rotatably supported by a trunnion 3 extended in the radial direction from a boss 2 forming up a tripod joint by way of a needle bearing in such a way that it can be rotated and moved in the axial direction. A needle retainer 12 is coupled with the tip end of the trunnion 3. The opposite part 12a faced to the needle bearing 9 and a come-out prevention part 12b trying to prevent the roller 4 from coming off, are formed in a needle retainer 12. The wall thickness of the opposite part 12a of the needle retainer 12 is made thicker than that of the come-out prevention part 12b. The needle retainer 12 is restricted by a snap ring 11 fitted in the annular groove 10 of the trunnion 3.

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