| 摘要 |
<p>A mechanism for interlocking a pair of panels (f, m) of a wrap-around type carton (c) includes an elongate central forming block (w) having contoured opposed side faces (16, 18) about which the panels to be interlocked are progressively caused to fold during longitudinal movement relative thereto so that the panels are folded into edge facing relationship with one another. A pair of elongate flanking blocks (V, VI) are disposed adjacent the opposed said faces 53 as to provide a fissure (22, 26) therebetween through which respective ones of the panels are caused to move. The surfaces (20, 24) of the flanking blocks juxtapsoed the side faces of the forming block are contorted to maintain the panels in close relationship with respect to the central forming block and to induce said progressive folding.</p> |
