| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a wheel from being caught and held in a groove or the like formed in an entrance of an elevator or the like, and any fixture from being immovable or toppled. SOLUTION: A caster device is turnably fitted to a tip side of a leg frame 2a of a leg part 2 via a fitting base part 16. A caster 10 for movement holds a wheel 18 turnably at a fixing part 16a of the fitting base part 16 by yokes 17 and 17 which are holding frames fixed to a turnable turning unit 16b.</p> |
