Air guiding apparatus for a motor vehicle

An air guiding apparatus for a motor vehicle, the air guiding apparatus being arranged in a rear region of the motor vehicle, the air guiding apparatus comprising:

• an air guiding element configured to be moved between a retracted rest position and a deployed operating position, the air guiding element being divided, as viewed in a longitudinal direction of the motor vehicle, with a formation of air guiding element sections in such a way that, during movement of the air guiding element between the rest position and the operating position, lateral air guiding element sections are additionally configured to be moved transversely with respect to the longitudinal direction of the motor vehicle in a manner which is coupled to said movement of the air guiding element;
• and
• a coupling device configured to positively couple movement of the lateral air guiding element sections which is directed transversely with respect to the longitudinal direction of the vehicle to the movement of the air guiding element between the rest position and the operating position, the coupling device including:
• a piston configured to be guided in a cylinder in such a way that the piston carries out a rotational movement during a linear movement in the cylinder, and
• a rotary rocker configured to act on the piston via a cardan joint, configured to also carry out the rotational movement of the piston, and configured to convert the rotational movement of the piston into the movement of the lateral air guiding element sections which is directed transversely with respect to the longitudinal direction of the motor vehicle.