| 摘要 |
Positioning device with differential division between two reciprocally rotating bodies, comprising a first ring gear with frontal toothing integral with a rotating body and a second ring gear with frontal toothing integral with a fixed body, also envisaging a further toothed ring gear between these two ring gears and with frontal toothing on both its faces and which can be coupled in a selectable way both with the toothing on the ring gear integral with the fixed part, and with the toothing on the ring gear integral with the rotatable part, envisaging that the number of teeth in the coupling relative to the ring gear integral with the movable part is different from the number of teeth of the coupling relative to the ring gear integral with the fixed part. |
