| 摘要 |
PROBLEM TO BE SOLVED: To provide a revolving door device hard to generate vibration and noise. SOLUTION: This is a revolving door device provided with a revolving door 12 at a doorway, forming one surface of the revolving door 12 into a recessed surface, forming the other surface on the opposite side of the recessed surface 13 into a protruded surface, extending one space wide and narrowing the other space narrow at a position where the recessed surface 13 of the revolving door 12 is directed to the side of the one space and closes the doorway, and a lower part of the revolving door 12 is supported on a radial ball bearing 21 and a thrust ball bearing 35.
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