Planetary gear train of automatic transmission for vehicles

A planetary gear train of an automatic transmission for a vehicle, comprising:

• a first shaft receiving torque of an engine;
• a second shaft parallel with the first shaft;
• a first planetary gear set on the first shaft including a first sun gear operated as an output element or a fixed element, a first planet carrier selectively operated as an output element, and a first ring gear directly connected to the first shaft and always operated as an input element;
• a second planetary gear set on the second shaft including a second sun gear connected to the first planet carrier, a second planet carrier, and a second ring gear selectively connected to the first planet carrier and the first ring gear;
• a third planetary gear set on the second shaft including a third sun gear connected to the second ring gear, a third planet carrier selectively connected to the second planet carrier and directly connected to an output gear so as to be operated as an output element, and a third ring gear selectively connected to the first sun gear;
• a first transfer gear connecting the first ring gear to the second ring gear;
• a second transfer gear connecting the first planet carrier directly to the second sun gear and selectively to the second ring gear;
• a third transfer gear selectively connecting the first sun gear to the third ring gear;
• a first brake disposed between the first sun gear and the transmission housing;
• a first clutch disposed between the first sun gear and the third transfer gear;
• a second clutch disposed between the second transfer gear and the second ring gear;
• a third clutch disposed between the second planet carrier and the third planet carrier;
• and
• a fourth clutch disposed between the first transfer gear and the second ring gear.