Closure device with a curtain having flexible lateral edges

The present invention (a screen wall portion 4) and in that a device side edge portion (4) with the provided screen (2) the flexibility having a screen (2) and the thick part-wall 4 ' provided extending parallel to the cable 21 in the closed position non-compressible in the longitudinal direction to apply a pulling force in their longitudinal direction to move in, and the screen side edge portion 4 from the open position, the cable 21 is disposed in the mid-plane 24. The cable of the side edge portion (4) formed in the curved portion of the cable 21, is fixed to the cable 21 do not separate with respect to the screen (2), and a wall portion cable 21 and the screen 2, two belts facing each be disposed on both sides of the flexible band includes 8 of elastic material coupled to 9,10.Entrance, closing devices, screen channel guide.