Patent ID: 8418280
Filing Date: 2013-04-16
Classification: E04H

Abstract:
1. A drive device for a flexible cover of a liquid container, which drive device is installed or installable in a device compartment that is arranged separate from the liquid container and with which the cover can be moved over the liquid container and can again be retracted from the liquid container, with a winding shaft that interacts with the cover and that is coupled to a first drive unit, wherein the winding shaft serves for rolling-up the cover, that is guided over a deflection device, which comprises an arm that is pivotally supported by an articulated joint, to an outlet opening of the device compartment and, at an end facing the winding shaft, is connected to an outer tractive element, and the cover is held and guided between the arm of the deflection device and the outer tractive element, which is held and can be tensioned by a first traction device so that the outer tractive element under tension presses the cover against the deflection device.