Angled armored roller shutter, for a window or door, has weights at the free ends of the shorter lower slats to give them the same weight as the other slats

摘要

The armored roller shutter, of an angled shutter for a window (1) or door, has a number of slats linked together by joints at an angle to the horizontal. The lower slats (4) of the shutter (2) are shorter than the others (3), with one end riding in the vertical guide rail (5) and with weights (7) at their free ends.