| 摘要 |
PROBLEM TO BE SOLVED: To restrain opening operation of a sash, even if a lower part of the sash warps by heat, in fireproof testing and a fire.SOLUTION: A vertical pushing-out window is provided in a frame body so that the sash 3 can be opened-closed. The sash 3 is arranged by exposing an operation part 42 to the indoor side by providing a sub-lock 37 on a bottom rail 19 and a stile. A steel slide bar 40 in a case 38 can advance-retreat by operating the operation part 42, and the tip projects from an opening part of the stile. A locking part capable of locking the slide bar 40 of an advance position is provided in a vertical frame of the frame body. A reinforcing metal fitting having the opening part for projecting the slide bar 40 is fixed to a lower end part side surface of a metallic stile or a tip part of a metallic bottom rail 28. A regulation screw 49a for regulating rotation of the slide bar 40 is installed in the metallic bottom rail 28 of the bottom rail. |
