To provide a four-wheel vehicle capable of making a turn by sufficiently reducing the turning radius by a space-saving and relatively simple turning mechanism.
One sets of right and left wheels of front and rear, right and left wheels to which no traveling torque by a drive source is transmitted are turnable around the axis perpendicular to the ground, one sets of right and left wheels are fixed to the angular position along the tangential direction of an arc passing a center point of the axis perpendicular to the ground of one set of right and left wheels around a point near a center point between axes of rotation for vehicle traveling of the other set of right and left wheels of the front and rear, right and left wheels when a vehicle body is turned, the rotational torque in the different rotational direction are given to each of the other set of right and left wheels at the angular position, and the vehicle body is turned around a point near the center point between the axes of rotation for vehicle traveling of the other set of right and left wheels.
SHIGEMATSU YASUTO
HAMAZAKI YOSHITO
KATAYAMA MASARU
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