Patent ID: 8820387

Claim:
A winding device for covering at least one of wall openings and windows comprising: a covering element that can be wound up, the covering element including at least an upper longitudinal edge and a bottom longitudinal edge; at least one raising and lowering unit comprising one of a shaft and a cable pull with a plurality of guiding rolls, and a drive unit enabling one of a rotational movement of the shall about a horizontal axis in two opposite rotational movement directions and a horizontal movement of the cable pull in two opposite movement directions; and wherein the bottom longitudinal edge of the covering element is one of connected to the deflecting element and forms the deflecting element, at least one first cord encloses the covering element and the one of the deflecting element and the bottom longitudinal edge of the covering element, and guides a rotational movement of the one of the deflecting element and the bottom longitudinal edge of the covering in a bend of the at least one first cord in the two opposite movement directions, the winding device comprising the at least one first cord, the at least one first cord having at least one free end connected to one of a shaft and a cable pull of the at least one raising and lowering unit and the winding device moving the at least one first cord in two opposite movement directions, wherein when the winding device moves the at least one first cord in one of the two opposite movement directions, the one of the deflecting element and the bottom longitudinal edge of the covering element rotates in one of the two opposite rotational movement directions to one of wind and unwind the covering element from the one of the deflecting element and the bottom longitudinal edge of the covering element, and at the same time one of lower and raise the upper longitudinal edge of the covering element.