| 摘要 |
Driving and driven shafts are respectively associated with inner and outer hollow spherical members in either relationship. The spherical members have a plurality of channels in planes preferably parallel to the axes of the respective shafts. A transfer assembly within the inner spherical member includes a group of radially-extending arms or rollers, each traversing a channel in both the inner and outer spherical members. These radially-extending arms or rollers have a freedom of angular articulation with respect to each other where they are not on a diametrically opposite relationship. |
