| 摘要 |
<p>The roller door (1) with a door panel (3) windable to a multi-layered configuration comprises several fixed lamellas (2) covering over the width of the door aperture and moving in vertical guide tracks (7). Each lamella comprises at least one support body with a support surface pair formed from an inside and outside support surface. The distance between the support surfaces of the pair is sufficiently great that in the wound state the inside surface locates on the outside surface of the previously wound layer and the remainder of the lamellas remains free. The support surfaces are curved around the winding axis (16) and/or crossways to the direction of movement are convex on one side and concave on the other side.</p> |
