| 摘要 |
A stepless rotational joint that is able to attain a more precise and smooth operation than a conventional art does. The stepless rotational joint includes a shell body, a lower mount, a driving element with two driving planes, a rotational disk, an upper mount, and a switch device. When a torque is applied along a selected rotational direction, the rotational disk will be driven to rotate along the selected direction because the top and the bottom end surfaces of the rotational disk are respectively engaged with an oblique plane of the upper mount and one of the driving plane of the driving element. The rotation of the rotational disk will further drive the lower mount to rotate synchronously along the selected direction.
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