| 摘要 |
<p>The document file rack comprises rectangular U-shaped modules whose parallel arms each form a smooth internal channel in which the file concerned is accommodated. The adjacent side faces of the modules each have two or more grooves (6) accommodating coupling pieces (7) between them. The arms themselves may be of U-section, and there may be a number of openings (9) in the rear face of each module. Notches in the ends of the parallel module arms aid the extraction of files. The base of the U in each module can also be of U-section, and the coupling pieces can be of double dovetail section.</p> |
