| 摘要 |
PROBLEM TO BE SOLVED: To make sash doors of a double-sliding sash foldable respectively and thereby to obtain a full-open opening. SOLUTION: Door body components 2, 3, 4 and 7 of a sash door 1 are connected by hinges 8 so that the door can be folded, while guide rollers 9 are provided at the opposite ends of the door and a slider 10 is provided at the center, and these are guided by guide rails 22 and 24. Thereby the sash door 1 is made openable and closable in a double sliding manner. Opening parts 25 for escape of the slider 10 are provided by notching in each of the guide rails 22 and 24 respectively and door stop faces 28 of longitudinal frames 26 are made openable and closable. By receiving the end of the sash door 1 into the longitudinal frame 8 by opening the face, the slider 10 comes to the position of the opening part 25 for escape and the escape thereof and the sash door 1 can be opened/closed in the folding manner.
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