Abstract: Closing, separating or covering device comprising a blind (1) capable of being wound about a winding axis with flexible lateral edges (2) held in position in guide tracks (3) during winding and unwinding, wherein the latter (3) are elastically mounted on a support or rotatably mounted about an axis substantially parallel to their longitudinal axis such that the said lateral edges (2) can be held in position in the guide tracks during the displacement by rotation and/or translation of the latter in relation to the support (4).

Abstract: A device having a shutter windable around a spindle and especially adapted to close a bay or other opening by the unwinding of the shutter, the same having flexible side edges which project beyond the shutter plane and which are retained with reduced friction in substantially continuous guideways during the unwinding and winding up of the shutter, that shutter edges may disengage from their guideways when subjected to a predetermined pull transversely to guideway. Each guideway has near and upstream of the shutter spindle an access passage through which the projecting edge of any shutter which has disengaged from the guideway can re-engage, as the shutter winds around its spindle, in that part of the particular guideway concerned which is disposed beyond the passage.