| 摘要 |
PROBLEM TO BE SOLVED: To provide a door capable of preventing a door body from flapping even if the closed door receives wind pressure in the direction orthogonal to the frontage direction of the door. SOLUTION: A hinged side door body 5 is movably and turnably connected to an upper rail 3, and one end of the door body supporting arm 8, which is connected to one end of the upper rail 3 at the other end and is turnable around its perpendicular axis, is connected to the hinged side door body 5 so as to be turnable around the perpendicular axis. In addition, locking pieces 2c and 5c are provided to a vertical frame 2 and a hinged side vertical peripheral frame 5A respectively to regulate the hinged side vertical peripheral frame 5A from moving in the direction nearly orthogonal to the frontage direction of the door by locking each other due to the sliding of the closed hinged side door body 5 in the frontage direction.
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