| 摘要 |
<p>A four-wheel driven vehicle includes a first transmitting system (14) from an engine (E) to left and right first driving wheels (8) provided with a braking unit, and a second transmitting system (18) branching from the first transmitting system to second driving wheels (12) serving as steerable wheels. The second transmitting system is provided therein with a frictional transmitting passage (17a) having a frictional torque, which is smaller than that between the second driving wheels and a road surface, and a directly transmitting passage (17b) disposed in parallel with the frictional transmitting passage, so that one of both the passages is selected. The frictional transmitting passage is selected when a speed-changing operating tool (31) is operated to its high speed position or when a steering device (4) is operated beyond the predetermined rate, and the directly transmitting passage (17b) is selected in all other cases.</p> |
