Patent ID: 8028777

Claim:
A coaxial two-wheel vehicle comprising: a step plate for a driver to ride; a vehicle body that supports said step plate so that the step plate is configured to change a posture with respect to the vehicle body in a roll direction of rotating around a roll axis as the center, when a traveling direction is coaxial with the roll axis; a pair of wheels, with one wheel of the pair of wheels disposed on each side of the vehicle body on the same axis in a direction orthogonal to said traveling direction of said vehicle body and rotatably supported by the vehicle body; a pair of wheel drive means to drive and rotate respectively said pair of wheels independently, wherein said vehicle body includes a parallel link mechanism having a vehicle body upper member and a vehicle body lower member that are disposed above and below in parallel with each other and a pair of lateral members that are disposed left and right in parallel with each other and that are connected to said vehicle body upper member and vehicle body lower member in a turnable manner, and wherein said step plate is divided in two to provide two divided steps, which are individually fixed to said pair of lateral members, and said pair of wheels are supported by the pair of lateral members through said pair of wheel drive means.