| 摘要 |
PROBLEM TO BE SOLVED: To keep a floor loaded with an object to be conveyed parallel to the horizontal plane in simple constitution. SOLUTION: A ferris wheel 100 includes an annular frame 1 and cabins 4 supported on the frame 1 to move along a track LM on the frame 1. In the frame 1, an outer rail 3o and an inner rail 3i are installed to both sides of the track LM of the cabin 4. The cabin 4 is moved on the outer rail 3o and the inner rail 3i while the frame 1 is supported by the outer rail 3o and the inner rail 3i. The frame 1 has a structure having a circular section, and a part corresponding to the ridge line of the frame 1 serves as the track LM of the cabin 4. COPYRIGHT: (C)2009,JPO&INPIT
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