Means to operate the mobile part of an advertisement display stand with image renewal

Means to operate the mobile part of an advertisement display stand with image renewal;

• the aforementioned display stand being the type comprising a casing with internal illumination and a window or opening to display changing images generated by means of an internally fitted fixed transparent part and another transparent parallel, mobile part facing it, one of them fitted with an opacity mask and the other with a number of fragmented images which are interspersed in line with the opacity pattern, so that by adjusting the position of the mobile part in relation to the fixed part, the visualization through the open spaces of the opacity mask of the fragments of one of the images or another in cooperation with the internal lighting may be selected;
• and the part that has the images being able to be made up of an interchangeable, flexible plate, facing the fixed part, supported by a rigid, transparent piece to which movement is applied;
• whereas the fixed and mobile parts may each be fitted into frames joined together by hinges, making an accessible structure with means to rapidly fit it into an urban street furniture display stand, provided with its own internal illumination;
• the aforementioned means being characterised by having a number of motors that act on different areas of the mobile part or piece that supports the interchangeable plate;
• these motors being synchronised by means of a circuit that enables their calibration and levelling.