JPH0198321U

JPH0198321U -

Info

Publication number: JPH0198321U
Application number: JP1987193901U
Authority: JP
Priority date: 1987-12-21
Filing date: 1987-12-21
Publication date: 1989-06-30
Anticipated expiration: 2002-12-21
Also published as: JPH0736184Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す概略断面図
、第２図は第１図中の外輪及び内輪のボール転走
溝を示す拡大断面図、第３図は第１図の実施例の
ボール中心軌跡を示す説明図、第４図乃至第６図
はこの考案のその他の実施例におけるボール中心
軌跡を各々示す説明図、第７図は第６図に示す手
法を用いて形成した外輪のボール転走溝を示す部
分断面図、第８図は従来例にかかるボール中心軌
跡を示す説明図、第９図は外輪及び内輪とボール
との間のトルク伝達角度を説明するための転走方
向に直行する方向の部分断面図である。図中、１０は等速自在継手、１２は入力軸（軸
）、１４は出力軸（軸）、１６は内輪、１８は外
輪、１６ａ，……，１６ａ，１８ａ，……，１８
ａはボール転走溝、２０，……，２０はボール、
２２はケージである。 Fig. 1 is a schematic sectional view showing one embodiment of this invention, Fig. 2 is an enlarged sectional view showing the ball rolling grooves of the outer ring and inner ring in Fig. 1, and Fig. 3 is an enlarged sectional view of the embodiment of Fig. 1. FIGS. 4 to 6 are explanatory diagrams showing ball center trajectories in other embodiments of this invention, and FIG. 7 is an explanatory diagram showing ball center trajectories in other embodiments of the invention. FIG. FIG. 8 is an explanatory diagram showing the ball center locus according to the conventional example; FIG. 9 is a rolling direction for explaining the torque transmission angle between the outer ring, the inner ring, and the ball. FIG. In the figure, 10 is a constant velocity universal joint, 12 is an input shaft (shaft), 14 is an output shaft (shaft), 16 is an inner ring, 18 is an outer ring, 16a, ..., 16a, 18a, ..., 18
a is a ball rolling groove, 20, ..., 20 is a ball,
22 is a cage.

Claims

[Claims for Utility Model Registration] (1) An inner ring connected to one shaft and having a plurality of ball rolling grooves, an outer ring connected to the other shaft and having a plurality of ball rolling grooves, and the inner ring and the outer ring. A constant velocity universal joint comprising a plurality of balls that are interposed between ball rolling grooves and transmit torque, and a cage that is interposed between the inner ring and the outer ring and holds the plurality of balls, the inner ring and the outer ring. The bottom cross-sectional shape of each ball rolling groove in the rolling direction is such that the ball center locus with respect to changes in the joint intersection angle of each ball is in the area corresponding to the wall thickness of the cage and the amount of movement of the ball center locus in the radial direction. A constant velocity universal joint characterized by having a shape including a compressible compound curve. (2) the compound curve has an arbitrary number of inflection points;
The constant velocity universal joint according to claim 1, which is a composite curve formed by combining arbitrary curves or straight lines with this inflection point as a boundary.