| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a life and long-term reliability of a planetary gear by reducing a heat transfer quantity of slip heat generation, which is transferred from a multiplate frictional element to the planetary gear through a carrier plate. <P>SOLUTION: A planetary gear type transmission system has a pressure-receiving part formed in a carrier plate 36 of a single pinion type planetary gear 30, the pressure-receiving part receiving a fastening load of a forward clutch 31 that is slip-fastened with the planetary gear. The carrier plate 36 is divided into a retaining plate part 36a where the pressure-receiving part is formed and a pinion carrier part 36b supporting a pinion shaft 74, at a position between the pinion shaft 74 of the single pinion type planetary gear 30 and a coupling part to a brake/clutch drum 33. Further, the divided portions of the retaining plate part 36a and the pinion carrier part 36b are coupled by a spline coupling part 36c to be able to transmit power. <P>COPYRIGHT: (C)2013,JPO&INPIT |
