| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a double-hung window structure which enables a window to be opened/closed by being manually lifted/lowered, more specifically, a double-hung window structure which is a simpler structure capable of adapting to a wall and a door of rolling stock, which makes a burden on an opening/closing operation light by lightness in weight and a small volume and which can be easily opened/closed.SOLUTION: A double-hung window structure 100 includes a window frame that houses a window in a vertically slidable manner, and fixing units (23, 41, 13 and 45) that enable the window to be fixed in any arbitrary one of a plurality of predetermined positions with respect to a height direction of the window frame.</p> |
