| 摘要 |
The invention relates to a gear device characterized in that it includes at least: - one shaft provided with a sun gear; - at least two coaxial ring gears with internal toothing, namely, at least one first ring gear and one second ring gear that has at least one first annular section and one second annular section; and - planetary gears meshing with the sun gear, the first ring gear, and the sections of the second ring gear, wherein same mesh with each other with a specific toothing relationship. |
