| 摘要 |
<p>The shutter (10) has an assembly of plates (101, 102) whose ends are assembled for sliding in slides (120, 121) parallely extending on two opposite sides of an opening (1) to be moved between closing and opening positions. The plates are stored in a case (11) mounted on a side of the opening in its opening position. Each plate carries an activating element at its ends, where the activating element cooperates with a toothed stair carriage integrated to the slides and movable along a direction perpendicular to the slides to move the plate between maximum and intermediate closing positions.</p> |
