Patent ID: 7841377

Claim:
Device for closing a doorway or other opening ( 1 ) comprising a screen ( 2 ) presenting flexible side edges ( 4 ) with an overthickness ( 4 ′) extending in the longitudinal direction of the side edges ( 4 ), this overthickness ( 4 ′) being guided by guide channels ( 5 ) thus enabling the screen ( 2 ) to be moved between a closed position and an open position, whereby the screen ( 2 ) is equipped with at least one cable ( 21 ), substantially incompressible in its lengthwise direction, extending substantially parallel to the side edges of the screen ( 2 ) so as to enable the application of a thrust force on these side edges ( 4 ) in their longitudinal direction to move the screen from its open position to its closed position, wherein said at least one cable ( 2 ) is incorporated in the overthickness ( 4 ′), whereby further the side edges ( 4 ) have a neutral surface ( 24 ), being a plane in which neither compression, nor any elongation takes place along the longitudinal direction of the edge when applying bending forces to the edge, the neutral surface ( 24 ) of said side edges ( 4 ) formed on bending of the cable ( 21 ) being located in this cable ( 21 ), the latter being fixed with respect to the screen ( 2 ), near each of the side edges ( 4 ) of this screen in an unremovable way preventing any movement with respect to the screen ( 2 ), driving means ( 28 ) are provided, enabling the thrust force to be exerted on the cables in their longitudinal direction which enables the movement of the screen towards it's closed position.