Folding panel and bow for a slidable top structure of a truck

The plate (9) has an articulated axle element comprising a central unit arranged between two folding plate elements, where the articulated axle element comprises a bow connection device (10). Film hinges are provided at the articulated axle element. The first film hinge connects the first folding plate element that is articulated with the articulated axle element. The second film hinge connects the second folding plate element that is articulated with the articulated axle element, where the plate is made of plastic material.