| 摘要 |
PURPOSE: To continuously change the speed by spline-engaging and arranging an annular member in a cylindrical member integrated with an input shaft, eccentrically movably arranging the annular member between respective inclined side surfaces, and outputting the speed through a planetary gear holding body. CONSTITUTION: An annular member 20 is slidably arranged on the inner peripheral surface of a cylindrical member 11 integrated with an input shaft 10 through splines 18, 21. Discs 30, 35 to be engaged with conical surfaces 14, 22, 15 and 23 for forming circumferential grooves 25, 26 are arranged, and internal teeth 40, 41 are connected to the annular body 44 and a planetary gear holding body 45 for constituting an epicyclic gear train 46 through external teeth 38, 39, and an output shaft 47 is connected to a sun gear 48. Rotational axes 32, 37 of the discs 30, 35 are moved around the gear train 46 by means 50, 51, the discs 30, 35 are moved inward and outward in the radial direction, the engagement position to the conical surfaces are changed, and the drive ratio between the input shaft 10 and respective discs 30, 35 is changed. Therefore, the speed can be continuously changed. |
