Improvements in electric signs

摘要

Improvements are disclosed in electric signs comprising a lower door which allows accessing the interior of the sign and maintenance operations, allowing a single worker without specific skills to easily carry out such tasks. The improvements also consist in incorporating a set of rollers on which rests the polycarbonate bearing the publicity or informative lettering which allow lateral sliding of the polycarbonate as it expands or contracts with the ambient temperature allowing to use polycarbonate sheets of any length. <IMAGE>