Folding carton with improved thread and punch lock

Details Folding carton with improved thread and punch lock Folding carton with improved thread and punch lock

B - Operations, Transporting

65

D

229/32

B65D 5/26 (2006.01)

Patent

CA 1273325

Abstract A folding container such as a tray, carton or the like constructed of paperboard includes a interior end panel articulated to a bottom wall panel and including a relief slit to ensure full engagement of a thread and punch lock on first and second end panels articulated to opposite sidewall panels. The first locking end panel includes a locking assembly comprising a tongue and cooperating locking tab. The second locking end panel includes a receipt aperture for the lock assembly. When locked in overlapping relation, the tongue and tab are respectively threaded and snapped into the receipt aperture to provide secure engagement. The relief slit is substantially U-shaped with the open end of the U directed toward the lock assembly receipt aperture when the end panels are in overlapping relation. The relief slit extends substantially around the tab engaging edge of the lock assembly receipt aperture so as to provide sufficient relief for the full and complete engagement of the locking tab.

526095

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