| 摘要 |
PROBLEM TO BE SOLVED: To provide a double hinged collapsible sash capable of removing gloominess by the presence of a window screen at the closed time of a paper-sliding door and capable of reliably expecting an insect proof effect even in a half opening state of opening only one paper-sliding door constitutive body side needless to say a fully opening state of the paper-sliding door. SOLUTION: A paper-sliding door constitutive body 1 is constituted by mutually thread-mounting a suspending side paper-sliding door 1A and a shutting side paper- sliding door 1B in respective meeting stiles 2a, 2b, and a stile 3a to the stile 2a is rotatably installed in a window frame A on the vertical frame 4 side. Shutting side stile 6a to meeting stiles 2a, 2b of a shutting side paper-sliding door are meshed with each other at paper-sliding door closed time. A pair of insect proof constitutive bodies 18 constituted by interposing a freely collapsible extensible zigzag-shaped partition net 21 between a stationary frame 19 fixed to the window frame A adjacently to the vertical frame 4 and a moving frame 20 is arranged to be installed in the window frame A. A blocking-up material 23 in contact with the shutting side stiles of the paper-sliding door constitutive body on the side notoveralapping with the outdoor side of the insect proof constitutive bodies 18 is projected on the outdoor side surface of the mutually meeting movable frames 20 of the respective insect proof constitutive bodies 18.
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