| 摘要 |
To provide a four-wheeled all-terrain vehicle which enables it to easily change shift position with a simple operation of moving a speed change lever in one direction. A speed change lever 15 having a substantially vertical axis of rotation C is provided below the fuel tank 2, while the speed change lever 15 has a first arm 18 extending outwardly from the axis and a second arm 19 extending upward along a side of the fuel tank 2 continuously from the first arm 18, so that shift between forward, neutral and reverse positions and selection of high speed or low speed can be done by swinging the first arm 18 in a substantially horizontal plane, and a first rod and a second rod are provided for locking the speed change lever at a selected shift position. The speed change lever 15 is connected to a gear type speed change apparatus 61 with a rod R, while the gear type speed change apparatus 61 has shifters 6, 7 which move, on a shaft whereon a speed change gear train is arranged, in the direction of the shaft to disengage the speed change gears and the shaft. Shift forks engage with the shifters to move the shifters in the direction of the shaft. A change plate 12 having an axis of rotation perpendicular to the axis of a shift rod 10 supporting the shift forks and cam guides 14a, 14b which change in the radial direction corresponding to the angle of rotation around the axis of rotation, and engagement pins 15, 16 having needle bearings which engage with the cam guides freely slidably, wherein the shift forks are moved in the axial direction of the shift rod by rotating the change plate.
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