Patent ID: 7997322

Claim:
A covering device for surfaces or for windows, doors, or similar openings or zones or for surface portions of the aforementioned items, having at least one covering element ( 16 ), which has movable element parts ( 17 ) joined in zigzag fashion and capable of being fanned out and closed like a fan, which can be fanned out into an approximately two-dimensional shape of the covering element ( 16 ) and closed to make a stack ( 18 ), and the at least one covering element ( 16 ) has two peripheral parts, which either are independent peripheral parts ( 24 , 25 ) or are formed by parts of the covering element ( 16 ) and which in the fanned-out state extend at an angle to one another and which in a common zone ( 21 ) are at least substantially brought together, and the element parts ( 17 ) in the common zone ( 21 ) are held together forming approximately a stacked block ( 60 ), the stacked block ( 60 ) is embodied as an independently freely movable part, and because of the fan motion of the element parts ( 17 ), the stacked block ( 60 ) is positionally variable relative to a pivot axis ( 70 ) in such a way that as a result of this positional variation of the stacked block ( 60 ), the spacing measured between a free end ( 71 ) of the stacked block ( 60 ) and the pivot axis ( 70 ) is variable, wherein flat ribs ( 68 , 69 ) engage the peripheral parts ( 63 , 64 ) of the covering element ( 16 ) in the form of independent peripheral parts ( 24 , 25 ) or reinforcing strips ( 78 , 79 ), and the flat ribs ( 68 , 69 ) are not fixedly attached to the stacked block ( 60 ), and the peripheral elements ( 63 , 64 ) formed by parts of the covering element ( 16 ), or by reinforcing strips ( 78 , 79 ) fixed to them, are freely movable relative to the flat ribs ( 68 , 69 ), engaging them, of the independent peripheral parts ( 24 , 25 ), at least over a longitudinal course, close to the stacked block ( 60 ), of the peripheral elements ( 63 , 64 ) or reinforcing strips ( 78 , 79 ), respectively.