| 摘要 |
A lifting folding door, having two primarily vertically extending rails, each arranged on one side of an opening to be closed by the door; a number of panels hinged together, each guided by both rails; and a guiding system connected at the top of each of the rails for guiding the panels such that, when moving upward, the panels are folded together in zigzag fashion by their hinge connections in primarily horizontal direction above the rails. An operating system is provided for driving at least one of the panels in vertical direction, and the guiding system gradually deflects the panels in horizontal direction, starting from the beginning of vertical movement. Consequently, a purely vertical movement is gradually converted into a movement of a horizontal component, so that the dynamic forces acting on the respective elements are minimized, and therefore the speed can be significantly increased.
|
