Pivoting shutter for window or door opening with electric motor drive for opening and closing

摘要

Window or door opening has at least one leaf (12) of a pivoted shutter which can be moved between open and closed positions by an electric motor, which is fastened on the shutter leaf and has at least one movable gear member (44) which engages on a reaction member (32) mounted next to the window or door opening so that the leaf is subjected to a turning moment in one or the other direction. Preferably, the electric motor drives a gear with a spindle which is fixed relative to the shutter leaf and the gear engages a fixed gear (32) which is mounted on a hinge pin of the shutter leaf.