| 摘要 |
The invention relates to a pleated shade for a triangular or other non-rectangular opening. The shade has a fixed bar which is shaped and angled to conform to at least a portion of a first edge of the opening and a moveable bar shaped, positioned and angled to conform to a second edge of the opening when the shade is in its closed position. Pleated material is connected at one end to the fixed bar and at the other end to the moveable bar and is adapted to cover the opening when the shade is in its open position. At least one row of openings is formed in the material which openings are aligned to conform to the preferred directions of movement of the shade, and cords passing through the row of openings are adapted to control stacking of the material. Normally, second cords are also provided to open and close the shade. Means are provided for connecting the first and second cords in a manner to compensate for differences in the rate of travel of the cords when the cords are operated. Where the upper edge of the opening is not straight, the moveable bar may be formed of a flexible material so that it can bend to conform to the shape of the upper edge of the opening when the shade is in its open position. When a shade has both a rectangular portion and a non-rectangular portion, a middle bar may be provided at the junction. Cord means are provided for raising the rectangular portion of the shade to a position adjacent to the middle bar and then for pivoting the bottom bar and the middle bar together into a position parallel with the fixed bar.
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