| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel structure which can easily get over obstacles including a step section or a protuberance and so forth having a specified height by a manual operation, and is economical, has a high value-in-use, and is compact. SOLUTION: This wheel structure 20 is constituted of a wheel supporting section, a wheel-fitted axle which is provided on the wheel supporting section, a car body bonding section which is provided on the wheel supporting section, a sliding piece section 7 which is provided on the wheel supporting section, and an elastic member which imparts bias to the sliding piece section 7. A wear preventing member 56 which prevents the external surface 10 of the sliding piece section 7 from wearing out is provided at least at a part of the external surface 10 facing a moving surface 8 of the sliding piece section 7 which constitutes a curved contour section 11 of the sliding piece section 7. COPYRIGHT: (C)2006,JPO&NCIPI
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