Open roof construction for a vehicle

The invention relates to an open roof construction with lower closing elements such as sun screens. An open roof construction for a vehicle having an opening in the fixed roof comprises a frame to be fixed to the roof and an adjustable panel supported by the frame and being adjustable between a closed position closing the roof opening and an open position in which it releases the roof opening on the front side. There is provided a sun screen slidably guided with its side edges within guide groves in guide rails, which are open in a direction to the sun screen. This guiding is effected by means of sliding shoes which are biased outwardly with respect to the sun screen by means of spring members. Two sliding shoes on both sides of a fixing point to the sun screen are connected to the sun screen and are pre-tensioned by a respective spring member. There are provided means for loading the spring members in vertical direction, symmetrically with respect to the fixing point.