| 摘要 |
A venetian blind assembly is provided in which each of the slats are provided with at least two pairs of holes, with the pairs of holes being spaced from each other along the lengths of the slats and with the holes of each pair being located across the width of the slat from each other and adjacent to opposite edges of the slats. Each of the holes is connected to adjacent edges of the slat by a slit, whereby the rung cords of the ladder assembly supporting the slats may be inserted through the slits into the holes to retain the slats in a predetermined position. The lifting cords for the blinds are located beyond the edges of the slats, such that when the vertical cords of the ladder assemblies are vertically adjusted with respect to each other, the slats may be moved to a closed position wherein the lower edge of one slat engages the top surface of the other to more completely prevent the infiltration of light or sound or the movement of air therebetween. A downwardly extending projection is provided on the lower surface of the headrail, such that it is engaged by the upper surface of the uppermost slat to prevent the infiltration of light or sound therebetween when the slats are in their closed position.
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