| 摘要 |
PROBLEM TO BE SOLVED: To provide a caster for traveling for smoothly traveling on a rugged floor. SOLUTION: The caster A for traveling having at least one wheel 5, 5a, 5b is equipped with a caster body 1, a climbing arm 2 capable of pivoting around an arm support shaft 3 on the caster body 1, and an arm return spring 4 returning the climbing arm 2 to a non-operating position. COPYRIGHT: (C)2004,JPO
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