| 摘要 |
PURPOSE:To simplify the structure of the movement in the caption, by forming internal teeth on a swaying gear plate which rotates a cam shaft and fitting a rotating plate, which has external teeth the number of which is less by one or two than the number of the internal teeth, inside the internal teeth. CONSTITUTION:A cam shaft 9 is fitted into a center at right angle and internal teeth 13 which are arranged around the cam shaft 9 are formed on a swaying gear plate 10 which is swayed and rotated by the rotation of the cam shaft 9. A rotating plate 14, which has external teeth 16 the number of which is less by one of two than the number of the internal teeth 13, is fitted inside the internal teeth 13. The external teeth 16 are rotated by the difference of the number of the teeth per one rotation of the swaying gear 10 and the rotating plate 14 is rotated and then a continuously variable transmission mechanism of a gear type is achieved in a simple structure. |
