Abstract: A covering assembly for covering an open container of a vehicle is characterized by the provision that the electric circuit controlling the movement of the cover is automatically opened when the cover reaches either the fully covered position or the fully uncovered position. The assembly includes a flexible cover attached at one end of the container body by a cover spool for retraction and extension the cover over the open container body. The cover spool is spring biased tending to uncover the open container. A bail assembly is pivotally mounted with a cover support section connected to the second end of the cover and is spring biased so as to extend the cover over the open container. A motor assembly rotates the spool and is controlled by an electric circuit that is automatically opened when the cover reaches either the fully covered position or the fully uncovered position.