| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an outward projecting natural ventilation window for which a sash can be drawn when locking the sash and timing of sash drawing is easily adjusted with a small number of components and by a simple configuration. <P>SOLUTION: For a drawing arm 23, one end part 23a is freely vertically movably connected to the middle part of a sub arm 21, a middle part 23c is freely turnably connected to a vertical frame 7, and the other end part 23b is engaged with an engaging hole part 31 of an opening/closing plate 17, and when the other end part 23b of the drawing arm 23 is positioned below a curved projection part 37 at the engaging hole part 31, movement of the other end part 23b accompanying opening/closing of a sash 15 is allowed. When the opening/closing plate 17 is moved downward from the position, the other end part 23b of the drawing arm gets on the curved projection part 37 from the lower part more on the lower side than the middle part 23c of the drawing arm 23, thereby causing the drawing arm 23 to turn the other end part 23b toward the outdoor side with the middle part 23c as a center, and one end part 23a of the drawing arm to turn the sub arm 21 toward the indoor side to draw the sash to the indoor side. <P>COPYRIGHT: (C)2013,JPO&INPIT |
