Patent ID: 8617023

Claim:
A planetary gear train of an automatic transmission for a vehicle, comprising: a first shaft receiving torque of an engine; a second shaft disposed in parallel with the first shaft; a first planetary gear set disposed on the first shaft, and including a rotation elements thereof a first sun gear selectively operated as an output element or a fixed element, a first planet carrier directly connected to the first shaft and continuously operated as an input element, and a first ring gear operated as an output element; a second planetary gear set disposed on the second shaft, and including as rotation elements thereof a second sun gear receiving an inverse rotation speed from the first ring gear, a second planet carrier directly connected to the second shaft, and a second ring gear selectively connected to the first planet carrier or the first ring gear; a third planetary gear set disposed on the second shaft, and including as rotation elements thereof a third sun gear selectively connected to the first planet carrier, the first ring gear, or the second ring gear, a third planet carrier directly connected to the second shaft and an output gear, a third ring gear selectively connected to the first sun gear; three transfer gears engaging three rotation elements of the first planetary gear set with selected rotation elements among the rotation elements of the second and third planetary gear sets; and five frictional elements selectively interconnecting the rotation elements of the first, second, and third planetary gear sets or selectively connecting the rotation elements to a transmission housing.