DOUBLE-PANEL QUICK-OPENING DOOR

摘要

The invention relates to a door including: a frame formed by two vertical posts (1) and an upper cross-piece (2), and two closure panels (3) suspended from the upper cross-piece (2) and connected to one another at different heights by resilient dampers (4) which can be moved vertically by adjustable stop elements (51) connected to cords or cables (5) which are guided through pulleys (7) mounted on the upper cross-piece (2) and which define loops (5a) with which actuation means (9, 91) engage, thereby varying the length of the loops (5a) and opening or closing the door. The door also includes means for movably mounting the side edges of the closure panels (3) in relation to the vertical posts (1) and means for securing the closure panels (3) to the upper cross-piece (2) of the frame.