| 摘要 |
A sheet holder includes a slide (6, 8) slidable along each end of a track (4 ) extending along the width of the upper end of a backing member (2), and a cord or pair of cords (10, 12) carried by at least one slide and receivable through the openings of a plurality of sheets. The cords include mating connectors (10a, 10b) at one e nd to permit the sheets to be secured together, while the opposite ends of the cords are secured to a length-varying device (16, 1 8) enabling the effective lengths of the cords to be varied according to number of sheets to be secured by the cords.
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