Abstract: The main door for the control of the access opening to a compartment, particularly a garage compartment, comprises: a fixed portion associable with the access opening of a compartment; a mobile portion including a leaf associated in a mobile way with the fixed portion; at least a pulley on which winds up a cable connected to the leaf and to a counterweight; an operating shaft of the pulley mounted on the fixed portion; a winding-unwinding device having a flexible element which can be wound and unwound which is associated with the top of the leaf; an electric motor mounted on the fixed portion and suitable for placing a driving shaft in rotation; and a transmission and distribution having a first electromagnetic clutch to transmit motion from the driving shaft to the operating shaft and a second electromagnetic clutch to transmit motion from the driving shaft to the winding-unwinding device.

Abstract: A sectional door for controlling the access opening to a compartment, includes a fixed portion including two pairs of vertical guides extending in a direction substantially parallel to a respective shoulder of the opening; and a movable portion including a leaf having a lower panel and an upper surrounding panel, extending over the entire width of the leaf and having its lateral sides in sliding engagement along a respective side guide, a pair of side support arms each having one end thereof articulated in correspondence to the top of a respective pair of vertical guides and the other end thereof pivoted in correspondence to an intermediate zone of a respective lateral side of the upper panel, and articulated and slidable connection elements between the lower panel and the upper panel, whereby the lower and upper panels are movable between a closed, and an open position.