| 摘要 |
PROBLEM TO BE SOLVED: To provide a dumbwaiter with a means for blocking up a gap between a car and an entrance frame caused when the entrance is opened. SOLUTION: In this dumbwaiter provided with an upper door and a lower door which are mutually separated and approach in the vertical direction to open and close the entrance, the gap blocking means is provided for blocking up the gap between the floor of the car of the dumbwaiter and the lower edge of the entrance frame in opening the entrance.
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