| 摘要 |
<p>PANEL FILE A panel file , for the storage of flat, flexible data elements , consists of plural, vertically overlapping pockets , the entrances (140) of which are formed by a plurality of vertically spaced, horizontally extending strips of resilient material. The strips are arranged so as to have an upper edge which overlaps the lower portion of the next upwardly adjacent strip. The strips are fastened together at their lateral margins. The lower portions of the pockets are formed by a support sheet which is attached to the panel on the surface opposite the pocket entrances. The support sheet is cut so as to have a column of inverted "V"-shaped straps each having a vertex which is attached to the back of a strip. The strips have an upwardly concave bottom edge with a central vertex at the point where the support sheet strap is attached to the next downwardly adjacent strip. Thus, the attachment point between a strip and a strap is located in an area of the panel having the thickness of only one strip, which area is below the lower edge of an upwardly adjacent strip and above the upper edge of a downwardly adjacent strip. Thus constructed, the overlapping pockets are individually openable, and do not become increasingly constrictive as the panel is filled. The panel thus constructed also has a minimum number of overlapping layers at any point.</p> |
