| 摘要 |
PROBLEM TO BE SOLVED: To provide a four-wheeled vehicle which can turn while sufficiently reducing the radius of turning in a space-saving and relatively simple turn mechanism. SOLUTION: Right and left wheels on one side with running torque by a drive source not transmitted can be turned with a shaft vertical to the ground surface taken as the center, bidirectional driving force is each generated by a pair of cylinder rods, the right and left wheels on the one side are turned in accordance with one directional driving force out of the bidirectional driving forces from a straight advancing position at vehicle running time to an angular position along a tangential direction of a circular arc passing a shaft vertical to the ground surface of the right and left wheels on the one side with the vicinity of the central point between vehicle running turn shafts of right and left wheels on the other side out of the right and left wheels before and behind taken as the center, the right and left wheels on the one side are turned in accordance with the other directional driving force out of the bidirectional driving forces from an angular position along the tangential direction to the straight advancing direction, rotational torque is given to the right and left wheels on the one or the other side in the angular position along the tangential direction, and a car body is turned with in the vicinity of the central point between vehicle running turn shafts of the right and left wheels on the other side taken as the center. |
