| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing structure by which a rotating member can be rotated with a good operating feeling by reducing the load when the rotating member is started to rotate. SOLUTION: In the bearing structure in which a fixed shaft 10 of a revolving door and the bearing 20 of a case body are always elastically abutted and which makes them relatively rotatable around a shaft core S, a fixed shaft abutting part 11, which has large and small plane parts 11A, 11a as a vertical surface part in the axial direction and a slanting slope part 11B, is formed to the fixed shaft 10. While, a bearing abutting part 21, which has the large and small plane parts 21A, 21a that are alternated with each other even if the revolving door D being in a closed rotation attitude is brought into face contact with the large and small plane parts 11A, 11a of the fixed shaft abutting part 11 and the slanting slope part 21B which forms a gap in-between the slope part 11B of the fixed shaft abutting part 11 even while being continued to these plane parts 21A, 21a, is formed to the bearing 20.
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