| 摘要 |
A heat-insulating window has an installation frame securable in a wall structure of a building. The installation frame contains profiles with lateral guide slots which extend vertically for engaging the borders of curtain webs. The profiles being mounted so that the curtain webs laterally extend beyond the window opening. An outer facing frame is secured to the outer side of the installation frame and defines a window opening. An inner facing frame is secured to the inner side of the installation frame and contains a removable auxiliary frame, the outer facing frame and the inner facing frame defining a first auxiliary chamber and a window chamber disposed therebetween. The auxiliary chamber is disposed above the window chamber and separated therefrom by an intermediate wall which contains slots for the passage of curtain webs therethrough. At least one glass pane is disposed in the window opening in front of the window chamber. Rollers containing curtain webs are disposed in the auxiliary chamber, the curtain webs being extendable across the auxiliary chamber, through the slots in the intermediate wall and across the window chamber. |
