| 摘要 |
PROBLEM TO BE SOLVED: To provide a window sash screening device removably attachable to a frame and serving also as a different member regardless of the shape of the frame. SOLUTION: A window sash screening device provided at a window sash comprising sliding screens 2, 3 stored in a frame 1 includes an oblong, cylindrical storage case 40, a net part 70 serving as a wide screen part, and a winding part energizing and winding the net part 70 freely drawably into the storage case 40. The storage case 40 is freely removably linked to the frame 1 in such a way as to slide freely in the direction of depth and can be freely secured to the sliding screens 2, 3 at a certain position in the direction of depth. The net part 70 is freely removably secured to the frame 1 at its pullout end and, with the sliding of the storage case 40, can be freely drawn out of the storage case 40 from an opening provided in the storage case 40.
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