Of each rotating element of a second planetary gearset and a third
planetary gearset, a first rotating element is constructed of a sun gear,
a second rotating element is constructed of connected ring gears, a third
rotating element is constructed of connected carriers, and a fourth
rotating element is constructed of a sun gear. The first rotating element
is connected to a case by a brake, the second rotating element is
connected to the case by a brake, the fourth rotation element is connected
to an input shaft via a clutch, the second rotation element is connected
to the input shaft via a clutch, the first rotating element is integrally
connected to a ring gear of a first planetary gearset, a third rotating
element is integrally connected to an output gear, and six forward speeds
from a first speed "1st" to a sixth speed "6th", and a reverse speed "Rev"
are achieved according to an operation table.
