Abstract: A cover assembly for an automobile has a case and a rotary shaft mounted within the case. The case can form an integral component of the automobile bumper and can be either curved or straight. The rotary shaft onto which a cover is rotated can also be straight or curved. The cover assembly includes an operating mechanism which features an assembly for curving the rotary shaft and devices for extending or shortening the rotary shaft. The operating mechanism also includes a bearing assembly that provides the shaft with freedom of movement in a vertical direction and in a clockwise or counterclockwise direction. A cap is pivotably supported to the case and the cover assembly includes a locking device for securing the cap in place. The cover has a main sheet and an auxiliary sheet, with the auxiliary sheet designed for securement with the locking device such that the main sheet can cover above and below the case.