| 摘要 |
PROBLEM TO BE SOLVED: To provide a planetary gear transmission enabling six-stage transmission while suppressing the increase of the axial length of the device. ! SOLUTION: A planetary gear transmission 1 equipped with a Ravigneaux type planetary gear unit 2, includes: a second long pinion gear PL2 pivotally supported by a carrier C, whose output side part PL2' is engaged with a short pinion gear Ps'; a front ring gear Rf engaged with an input side part PL2'' of the second long pinion gear PL2; a first ring gear clutch C4 capable of coupling a rear ring gear Rf to an output shaft 5; and a second ring gear clutch C5 capable of coupling the front ring gear Rf to the output shaft 5. ! COPYRIGHT: (C)2015,JPO&INPIT |
