| 摘要 |
A window covering has a plurality of shade elements, each having a first longitudinal edge and a second longitudinal edge. The shade elements are positioned sequentially below a headrail, and each shade element is made of a window covering material that can be rolled about the first longitudinal edge. A first rail or panel of fabric or film extends from the headrail past the first longitudinal edge of each shade element and is connected to lowermost shade element or the bottomrail. A second rail or panel of fabric or film extends from the headrail and is attached to the second longitudinal edge of each shade element. Rungs extend between the first rail or panel and the second rail or panel such that there is one rung below and corresponding to each shade element. The first longitudinal edge of each shade element rests upon a corresponding rung when the window covering is in a closed position. A control mechanism is connected to at least one of the first rail or panel and the second rail or panel. The control mechanism is capable of moving at least one of the first rail or panel and the second rail or panel. Such movement causes each of the plurality of shade elements to roll or unroll about the first longitudinal edge of the shade element. A flap may be attached to and extend from the second longitudinal edge of each shade element or the rungs.
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