Sectional door for closing wall openings

摘要

The roller-blind door (1) has a succession of tubular slats (2) with circular-section walls with circular cutouts (8) and seals (10). Each cutout accommodates the cylindrical wall of the next slat and has the same radius (R) as the circular-section walls. The ends of the slats are fastened together and have rollers (3) running in guide tracks (4,4) with curves (6) on either side of the door.