| 主权项 |
1. A winding apparatus for covering an opening in a wall portion comprising: exactly one drive unit, a flat, flexible cover element for the at least partial covering of the opening, an elongated winding element that is rotatable by way of the drive unit and cooperates with the cover element and by way of which, in dependence on the direction of rotation of the winding element, the cover element can be wound onto the winding element and can be unwound again from the winding element, an adjusting unit that, during the winding operation lowers or raises a movable top edge of the cover element without a winding operation of the movable top edge, and transmitting means provided for interaction between the drive unit and the winding element, having a windable pulling element which is received between a first rotatable winding body and a second rotatable winding body in such a manner that the pulling element can be wound and unwound by way of the first winding body which is driveable by the drive unit, wherein the second winding body and the winding element are rotatably coupled together, wherein the cover element can be wound by way of an unwinding operation of the pulling element from the second winding body, and wherein the winding element, for adjusting the cover surface, is arranged in such a manner on the cover element that two part regions of the cover element, which are arranged on both sides of the winding element, can be wound or unwound at the same time one of onto and from the winding element. |
