| 摘要 |
PURPOSE:To simplify the mechanism of a cyclo-reduction gear in such a way that the tooth number of two inner gears of the cyclo-reduction gear is made somewhat different, and at the same time, one of which is shifted, and these are brought into a meashing engagement with a rotary outer gear. CONSTITUTION:An outer gear 10 is freely tucked to an eccentric cam 6 fixed on an input axle 1, and the outer gear 10 is brought into meshing engagement with both of a fixed inner gear 13 and an inner gear 3a which co-operates with an output axle 3. The inner gear 13 has a tooth number somewhat different from that of the inner gear 3a, and one of the inner gear is shifted. This facilitates to output in such a way that a rotation of the input axle 1 is decelerated by the difference in number of teeth between the gears 13 and 3a per rotation, thus the mechanism is simplified in comparison with conventional cyclo-reduction gears or the like. |
