| 摘要 |
A panel-interlocking arrangement for first and second panels overlapping each other, includes locking and retaining tabs struck respectively from the first and second panels, and a biasing tab struck in part from a corner of the retaining tab. The locking tab is foldably joined at its trailing end edge to the first panel and extends along a notional line to its leading end edge. The locking tab has opposite side edges extending between the leading and trailing end edges and a lateral projection protruding from one of the side edges. The retaining tab is foldably joined to the second panel and defines at least a part of a locking aperture in the second panel. The biasing tab is foldably joined to the second panel along a transverse edge of the locking aperture and projects from the transverse edge in the direction parallel to the notional line. The locking tab is folded out of the plane of the first panel into the locking aperture and is disposed in the position where the locking tab is inclined to the second panel. The retaining tab is folded out of the plane of the second panel into the position where the retaining tab is engaged at its free end edge with the lateral projection of the locking tab. The biasing tab is folded out of the plane of the second panel into the position where the biasing tab leans against the locking tab.
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