| 摘要 |
PURPOSE:To keep away from interference substances and assemble a planet gear device by providing at least one notch section, on which a tooth section is eliminated at optional section except for the formation of internal gears in the peripheral directional interval corresponding to the revolution directional interval of planet gears. CONSTITUTION:A planet gear device 10 is supported by a sun gear 11, internal gears 13 and 14, and carriers and equipped with a plurality of planet gears 12 which mesh with the sun gear 11 and the inner gears 13 and 14. Assuming that the two interval gears 13 and 14 have internal teeth on all of their inner peripheral surface, they constitute a part of it, and there is no internal tooth on the other part, which is a notch section 15. The internal gears 13 and 14 are discontinued from each other, and the spaces between end sections of the two interval gear become the notch sections 15 respectively. Thus, interference substances are kept away and a planet gear device is assembled. |
