Abstract: Motorized manoeuvring device (1) intended to manoeuvre a moving windable fabric screen (3), the motorized manoeuvring device comprising: an actuator (4), comprising a hollow housing (41) containing a gear motor, a mounting end-plate (7a), characterized in that the end-plate (7a) comprises a first support (11) extending from the end-plate along a first longitudinal axis (X-X?) and cooperating with the housing (41) of the actuator (4) and in that it comprises a second support (12) extending from the end-plate along a second axis distinct from the first (Ya-Ya?, Z-Z?) and in that the hollow housing, notably the tubular hollow housing, of the actuator, is closed by the first end-plate support.

Abstract: Motorized operating device intended for operating a movable screen with a windable canvas of a window covering device or of a projection screen device, the motorized operating device being intended to be suspended by the canvas and including: a winding tube which is movable around a first axis and on which the canvas is intended to be wound, an actuator which is disposed at least in part in the tube, a first element for fixing a first end of the canvas to the winding tube, the weight of the operating device creating a canvas unwinding torque, wherein said operating device includes an element for compensating the unwinding torque which acts exclusively by interaction with gravity and/or with the canvas.

Abstract: A motorized carriage for opening/closing a screen moves along a rail by means of a friction wheel that is rotated by a motor and is in contact with at least one running surface of the rail. The contact force between the friction wheel and the running surface can be regulated by a presser means that enables the contact force to be varied according to a resistive force that depends on the load pulled or pushed by the carriage as it moves.