| 摘要 |
The invention provides a joint for the transmission of rotational motion between two rotatable elements, including a first, driven, element consisting of a shaft portion and a head portion, the head portion including a first recess and a second, contiguous, recess in the form of the female partner of a coupling having coupling faces, and a second, driving, element consisting of a shaft portion, a collar portion of a diameter freely fitting into the first recess, and the male partner of the coupling, wherein the respective dimensions of the coupling faces of the male and female partners differ to such an extent that the second element is tiltable out of alignment with the first element while retaining its engagement with the first element.
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