| 摘要 |
A filing device (1), which has a reference cover-forming member (2) having a cover (21), a spine (22), and a back cover (23) integrated in one body, and a movable cover-forming member capable (3) of relative movement with respect to and along the inner surface of the reference cover-forming member (2), and in which the reference cover-forming member (2), in the area where the aforementioned spine (22) is formed, is provided with a cover motion-enabling insertion engagement section (25) extending in the longitudinal direction of the spine-forming section, and, along with that, is provided with a guiding section (26) controlling the motion of the movable cover-forming member (3). The movable cover-forming member (3) has a movable cover (31), a movable spine (32), and a movable back cover (33) integrated in one body of a width corresponding at least to the reference cover-forming member (2) and, in the area where said movable spine (32) is formed, there is provided a cover motion-enabling opening engagement section (35), into which the aforementioned cover motion-enabling insertion engagement section (25) is inserted.
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