| 摘要 |
PROBLEM TO BE SOLVED: To provide door structure constituted in such a way that a lower member of door fittings disposed at a floor face descends to dissolve step difference of the floor face when a door is opened, and ascends to return into the original position when the door is closed. SOLUTION: A floor laying member 10 with an upper face 11 formed as an inclined face is disposed at a floor with an upper face lower end coinciding with a floor face F and with the lower end 11a side as a rotational cardinal point. The floor laying member 10 is rotatory-lowered so that the upper face 11 is flush with the floor face F when a door D is opened, and the floor laying member 10 is rotatory-returned into the initial position where the upper face 11 abuts on the lower face Da of the door D when the door D is closed.
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