| 摘要 |
PROBLEM TO BE SOLVED: To surely open and close a door even in a unit room with the barrier- free structure that a floor surface of a bathroom and a floor surface of a dressing room are positioned in nearly the same plane surface. SOLUTION: An opening/closing door 10 is formed of a first door 11 having nearly a half width of the inner surface space between a right and a left vertical frames 62 of a door frame, a second door 12 and a. third door 13 connected to a right and a left ends of the first door 11 through a hinge 14 and having a nearly half width of the first door 11. When the second door 12 is slid, the first door 11 and the third door 13 interlocked with the second door 12 are folded so as to open an entrance. Since the second door 12 is positioned on the dressing room side and the third door 13 is positioned on the bathroom side, the center of gravity of the door 10 always exists at the center of the first door 11, and a fall of the door 10 toward the bathroom is thereby surely prevented.
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