| 摘要 |
A universal joint is provided and comprises a male and female member which are rotatably coupled together even when the members are not in axial alignment with each other. The female member includes a socket with a polygonal cross-sectional shape while the male member includes a spherical portion having polygonal faces circumscribed diametrically therearound. The spherical portion is insertable into the socket whereby the polygonal faces on the spherical portion mesh with the polygonal socket in the female member so that the two members are rotatably drivingly coupled together.
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