| 摘要 |
<p>The panel comprises a series of mutually articulated panel elements (1), a series of stiffening elements (2) extending between the panel elements (1), a strap (3) for raising the panel, and guide channels (7) on either side of the panel. According to the invention, it is provided that the guide channels (7) have at least over part of their length a width which is greater than or equal to twice the cross-section of a stiffening element, all or almost all the stiffening elements (2) extending into the channel. According to another feature of the invention, it is provided that one roller (10, 12) in two has a size which is larger than those (9, 11) which are immediately adjacent thereto. Application in particular to vertically opening folding doors. <IMAGE></p> |
