<；P>；PROBLEM TO BE SOLVED: To provide a small-sized vehicle, controlling a boarding part to be substantially horizontal to bidirectional inclined surface. <；P>；SOLUTION: The small-sized vehicle 1 includes: a frame part 2 to which at least two parallel link mechanisms 201, 202 are connected not to constrain mutual rotation at an intersecting part； the boarding part 3 connected to the frame body 2 to cooperatively rotate； a vehicle body attitude detecting part 4 for detecting the attitude of the frame part 2； a driving part 5 for driving the frame part 2 to rotate according to the detection result of the vehicle body attitude detecting part 4； and wheels 6 provided on the frame part 2. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
