| 摘要 |
<p>This high speed door (1), for closing or opening an opening made in a wall, comprises a bearing structure (3, 4) to which are attached a flexible curtain (2) and a drive system (5) enabling the curtain (2) to be moved from a closed position into an open position in which the curtain (2) is concertina-folded into the top of the opening. According to the invention, the bearing structure (3, 4) comprises two U-shaped vertical uprights (3) comprising a web (9) and two flanges (10) between which the curtain (2) is folded, each upright (3) being formed of at least one one-piece section piece (6) incorporating at least one cavity (7) oriented in the longitudinal direction of the section piece (6).</p> |
