Abstract: An integral unit is provided comprising a raisable and tiltable door panel member and a frame structure therefor containing the driving mechanism. All the components of the driving mechanism are not only contained within the door frame member, but are also entirely concealed therewithin so that the integral unit has an agreeable and esthetic appearance, both from the front and from the rear side. Nobody can tamper with the driving mechanism, neither from its front nor from its rear side. No greased nor oiled components (such as chains, cables and the like) are exposed, with which the user may soil its clothes or its hands when passing by. The entire unit may be manufactured and its operation tested at the factory, and thereafter it can be assembled at the site of use by only fixing the frame in position in the corresponding wall aperture.