| 摘要 |
<p>The aim of the invention is to provide a cheap, simple and reliable solution of heat protection for windows, which should even with existing windows considerably contribute to the reduction of heat exchange not only in winter but also in summers in the window area (1) and in both directions, meaning from the inside to the outside and vice-versa, while the possibility of natural ventilation should not be affected if not improved. In this sense the window (1) is equipped with a leaf shutter (2) consisting of leaves (21) and wound on a corresponding pole, installed in an appropriate chassis (20), while the leaves (21) of each shutter (2) are on their internal surface (21) covered with reflective foil (22). The shutter (2) chassis (20) features on its lower external end (200) an opening (201). It is recommended that on the lower end (14) of the window (1) a ventilation opening should provided.</p> |
