A sunshade apparatus comprising: - a plurality of slats, each tilting about a respective longitudinal axis and having a first and a second end operatively coupled to a first and a second lateral guide, configured to guide the slats along a direction of movement; - a connecting mechanism configured to connect together the slats and rotate them about their respective longitudinal axes; - a lifting shaft, connected to the last or lowermost slat, distal from the lifting shaft, to allow the slats, which are connected to each other by the connecting mechanism, to be moved in the direction of movement when the lifting shaft is rotated; - a lifting element connected to the last slat, distal from the lifting shaft, to move the slats in the direction of movement when the lifting shaft 6 is rotated; - a connecting structure for connecting the lifting element to the last slat; - a tilt pulley connected to the connecting mechanism, to actuate it in order to modify the tilt of the slats, and operatively connected to the lifting shaft by means of a clutch, so that a rotation of the lifting shaft in a first direction causes the tilt pulley to rotate up to a configuration of maximum or minimum tilt of the slats and a further rotation of the lifting shaft in the first direction causes the tilt pulley to slip on the clutch, characterized in that Z said lifting shaft is coupled to a motor and said sunshade apparatus comprises a stop device for stopping the motor and an activating element, configured to activate the stop device to inhibit operation of the motor, wherein the connecting structure defines a clearance, along the direction of movement, between the lifting element and the last slat, so that the last slat is movable between a first and a second position along the direction of movement, relative to a stretch of the lifting element to which it is connected, in order to activate the Z activating element. - a plurality of slats, each tilting about a respective longitudinal axis and having a first and a second end operatively coupled to a first and a second lateral guide, configured to guide the slats along a direction of movement; - a connecting mechanism configured to connect together the slats and rotate them about their respective longitudinal axes; - a lifting shaft, connected to the last or lowermost slat, distal from the lifting shaft, to allow the slats, which are connected to each other by the connecting mechanism, to be moved in the direction of movement when the lifting shaft is rotated; - a lifting element connected to the last slat, distal from the lifting shaft, to move the slats in the direction of movement when the lifting shaft 6 is rotated; - a connecting structure for connecting the lifting element to the last slat; - a tilt pulley connected to the connecting mechanism, to actuate it in order to modify the tilt of the slats, and operatively connected to the lifting shaft by means of a clutch, so that a rotation of the lifting shaft in a first direction causes the tilt pulley to rotate up to a configuration of maximum or minimum tilt of the slats and a further rotation of the lifting shaft in the first direction causes the tilt pulley to slip on the clutch, characterized in that Z said lifting shaft is coupled to a motor and said sunshade apparatus comprises a stop device for stopping the motor and an activating element, configured to activate the stop device to inhibit operation of the motor, wherein the connecting structure defines a clearance, along the direction of movement, between the lifting element and the last slat, so that the last slat is movable between a first and a second position along the direction of movement, relative to a stretch of the lifting element to which it is connected, in order to activate the Z activating element.