Device for extendible holder for a ramp

The device i.e. cassette (10), has a driving device including a slide (20) that is in contact with a ramp (1), which is in articulated connection with the slide through elbow levers (70). The driving device is in contact with a power transmission element by a pinion e.g. drift pinion and transmission pinion, where the transmission element is arranged at a vehicle and designed as a toothed rack (26). The driving device includes an electrical driving motor (21) that is arranged on the slide. A cover plate is formed on a floor surface of the vehicle.