Patent ID: 8109317

Claim:
A shutter device for closing of an opening, comprising: at least one slideway; a deformable shutter that can be moved across the opening, in one direction to cover said opening or in the opposite direction to uncover it, said shutter comprising at least one lateral edge fitted with a lateral bead which is slideably mounted in the slideway and which can be extracted therefrom under the action of a defined pulling force directed transversely to the slideway; a means for reinserting into the slideway the bead that has been extracted therefrom, this means comprising a guide member which is positioned facing the slideway and which is designed so that, while the shutter is being moved in the aforementioned opposite direction, it deflects toward the slideway the bead that has been extracted from this slideway, characterized in that the guide member comprises at least one pair of rollers having fixed axes of rotation which are located symmetrically on each side of the mid-plane of the shutter, in the same plane substantially perpendicular to said mid-plane of the shutter and are directed obliquely with respect to said mid-plane of the shutter so that the rollers converge toward the bottom of the slideway and roll, as the shutter is moved in the aforementioned opposite direction, along the bead which has been extracted from the slideway, pushing it into the slideway.