Patent ID: 6694836
Filing Date: 2004-02-24
Classification: F16H,Y10S,Y10T

Abstract:
An all-terrain vehicle comprising:an engine including a crankshaft and a crankcase; a gear transmission of transmitting a power of the engine; and a transmission case containing the gear transmission; the gear transmission including: a transmission input shaft having forward gears and a reverse gear, a transmission output shaft and a transmission intermediate shaft all of which are disposed in and supported on the transmission case in parallel to the crankshaft; and a dog clutch mechanism disposed on the transmission input shaft so that one of two forward ratios, a neutral state and a reverse ratio is established by moving a single shift sleeve; wherein the transmission intermediate shaft includes a counter shaft having forward intermediate gears respectively engaged with the forward gears of the transmission input shaft, and a reverse idle shaft having a reverse idle gear engaged with the reverse gear of the transmission input shaft; wherein the transmission input shaft and the transmission output shaft are spaced vertically in the transmission case; wherein the counter shaft is disposed on one side nearer to the crankshaft with respect to a plane including respective center axes of the transmission input shaft and the transmission output shaft; and wherein the reverse idle shaft is disposed on other side farther from the crankshaft with respect to the plane.