WINDOW SCREEN WITH BLIND FUNCTION

摘要

There is provided a window screen configured in such a manner that first and second screens are wound around a winding shaft together with a number of dimming slats attached therebetween in which bottom bars of lower ends of both screens come into stable contact with a lower frame of a screen frame. The first and second screens and the slats attached therebetween at regular intervals so as to be freely tiltable are wound around the winding shaft, both side ends of the first screen engage guide rails so as to be freely slidable, and bottom bars guided individually by side frames are attached to lower ends of both screens. Both screens are set so that either one of the bottom bars at the lower ends thereof comes into contact with the lower frame of the screen frame in an arbitrary inclined orientation that the above-described slats may have in a state in which both screens are extended in the screen frame in a tensed manner.

主权项

1. A window screen with a blind function comprising: a screen unit, the screen unit including:
a net-type translucent first screen configured to be wound upward by a winding shaft; a net-type translucent second screen configured to be wound by the winding shaft together with the first screen in an overlapped manner; and a number of sheet-type slats for dimming or light-shielding having a constant width and coupled between the first screen and the second screen, the slats being coupled at both ends thereof to both screens at regular intervals so as to be freely tiltable, and having flexibility so as to be capable of being wound by the winding shaft together with the first and second screens, wherein in the screen unit, one end of the first and second screens is attached to a peripheral surface of the above-described winding shaft so as to allow the first and second screens to be wound in an overlapped manner, the first screen includes a number of engaging strips attached thereto along left and right side end portions, the engaging strips being engaged in slits of a guide rail on side frames of a screen frame so as to be freely slidable, the first and second screens are provided with first and second bottom bars attached individually to lower ends thereof, at least the first bottom bar attached to the lower end of the first screen disposed in guide grooves of the side frames to guide a vertical movement of both ends thereof, and the first and second screens have length set so that either one of the bottom bars at the lower ends thereof comes into contact with a lower frame of the screen frame in an arbitrary inclined orientation that the above-described slats can have in a state in which both screens are extended in the screen frame in a tensed manner.