Abstract:
In order to control the light or air permeability of an elastic extensible screen (1) disposed between an area to be protected and an external area, and having a permeability that varies with a pulling force exerted on the screen, a motorized mechanism (3) adjusts the pulling force on the screen in response to a setpoint signal, which can be determined on the basis of one or a plurality of signals from one or a plurality of sensors (12, 14, 15), in particular light sensors.
Abstract:
An actuator (2) for driving a blind with adjustable slats, the actuator including a housing (20) inside which a motor (22) is installed, the motor driving a first output shaft (21) that projects on either side of the housing (20), characterised in that the actuator further includes a second output shaft (23) of which the axis of rotation (X23) is parallel to and not coinciding with that of the first output shaft (21) and controlled coupling elements (26) making it possible to selectively transmit a rotational movement from the first output shaft (21) to the second output shaft (23), and in that the second output shaft (23) projects on either side of the housing (20).