| 摘要 |
PROBLEM TO BE SOLVED: To obtain a mobile object capable of passing over a groove without falling in the groove even if a road surface has the groove. SOLUTION: A wheelchair 1 moving on the road surface 7 with a groove 7a is equipped with a front wheel 2 mounted on the front side of the traveling direction, a front wheel axle 3 fixed at the center part of the front wheel 2, a rear wheel 4 mounted on the rear side of the front wheel 2, and a frame 5 supporting the front wheel axle 3 rotatably, and the wheelchair is also equipped with a sending plate 6 with a guide groove 6a capable of rolling the front wheel axle 3, and the sending plate 6 falls down to the road surface 7 astride the groove 7a by rolling in the traveling direction on the front wheel axle 3. COPYRIGHT: (C)2008,JPO&INPIT
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