| 摘要 |
PROBLEM TO BE SOLVED: To provide a door which can be opened and closed easily by the elderly persons, adults, children and persons in wheelchairs. SOLUTION: A handle 20 for opening and closing is installed to a door body 10, the height to the lowest part of an effective use portion 20c of this handle 20 is in the range of 80 to 85 cm above the floor and a height to the highest portion is in the range of 110 to 120 cm above the floor for this door.
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