| 摘要 |
The device has a driving unit for displacing a shutter between open and closed positions. The unit has a drum (8) rotating around an axle, and the shutter is rolled around the drum in the open position by forming a roller. The shutter is unrolled in the closed position. Slides are mounted on a fixed support for guiding flexible lateral edges of the unrolled shutter along a bay. A bend (33) extends between the roller and slides' upper ends (30) close to the roller, and avoids buckling of the edges in a non maintained part of the edges. |
