| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle, capable of reducing time and labor required for replacement of tires or installation of chains. SOLUTION: This vehicle is provided with a car body, a plurality of pairs of wheels, not dedicated for winter season, provided under the car body, and auxiliary wheels provided under the car body to assist travel of the car body by the plurality of pairs of wheels. The auxiliary wheels are grounded on a road surface when assisting travel of the car body. They are retained at a separate position from the road surface when not assisting travel of the car body. COPYRIGHT: (C)2007,JPO&INPIT
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