Device With a Shutter Which May Be Wound Around a Drum

Flexible shutter device intended for closing a window or door opening or any type of opening, cooperating with driving means for moving the flexible shutter between an open position and a closed position, the device comprising:

• a drum that can rotate about its horizontal spindle and around which the shutter is wound in its open position, forming a roll consisting of turns formed by successive layers of shutter attached to one another and from which the shutter can be unwound and pushed towards its closed position,
• means of supporting the drum with respect to the walls of the opening,
• at least one contact element exerting on the roll a thrust force that is substantially radial with respect to the drum,
• the means of supporting the drum comprising means of suspending the drum and these suspension means comprising a suspension spindle parallel to the rotation spindle of the drum and about which the drum can oscillate,
• the flexible shutter having lateral edges substantially non-compressible in the longitudinal direction of the shutter,
• characterised in that
• the distance from the rotation spindle of the drum to the reference plane formed by the flexible shutter in its closed position is, whatever the position of the shutter, less than the distance from the suspension spindle to the vertical reference plane.