Power transmission apparatus for vehicle

A power transmission apparatus for a vehicle comprising:

• a first input shaft selectively connected to a power source through a first clutch and having first, second, third, and fourth input gears fixedly disposed thereon;
• a second input shaft selectively connected to the power source through a second clutch and having fifth and sixth input gears fixedly disposed thereon;
• a first output shaft disposed in parallel with the first and second input shafts and having first, second, fourth, and fifth speed gears engaged respectively at least one of the input gears and rotatably disposed on the first output shaft;
• a second output shaft disposed in parallel with the first and second input shafts and having third, sixth, and seventh speed gears engaged respectively at least one of the input gears and rotatably disposed on the second output shaft;
• at least one synchronizer selectively connecting the speed gears on the first output shaft to the first output shaft or selectively connecting the speed gears on the second output shaft to the second output shaft;
• and
• a reverse speed output unit including a reverse idle shaft disposed in parallel with the first and second output shafts, a first idle gear engaged with any one input gear of the first and second sets of input gears, and a second idle gear engaged with any one speed gear of the first and second sets of speed gears,
• wherein one of the first idle gear and the second idle gear is fixedly disposed on the reverse idle shaft and another of the first idle gear and the second idle gear is rotatably disposed on the reverse idle shaft, and
• wherein the reverse speed output unit includes a further synchronizer selectively connecting another of the first idle gear and the second idle gear to the reverse idle shaft.