A covering arrangement for swimming pools or similar open areas in which a flexible cover has one end attached to a drum, and which may be wound onto the drum or rolled off from the drum. A reversible motor operates the drum for unwinding the cover when the motor operates in one direction of rotation. In the reverse direction of the motor, the cover is rolled off from the drum. A carriage serves to carry the drum which is provided with transport mechanisms on each side. A coupling arrangement connects the motor to the transport mechanisms when the motor rotates the drum for the purpose of unwinding the cover from the drum. When, on the other hand, the cover is to be wound onto the drum, the motor is connected by the coupling arrangement to the drum.
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