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A thin profile carton is formed from a single blank of paperboard consisting of a plurality of side walls joined to one another to form a rectangularly shaped carton having a depth dimension from front-to-back substantially less than its width dimension with an improved ripped, carton opening scheme

A thin profile carton is formed from a single blank of paperboard consisting of a plurality of side walls joined to one another to form a rectangularly shaped carton having a depth dimension from front-to-back substantially less than its width dimension with an improved ripped, carton opening scheme at the top end thereof. The top end opening feature comprises a single, substantially straight, cut and scored line of weakness in one of the top end closure flaps of the carton, which line of weakness extends completely across the end closure flap and intersects at least one fold line in said end closure flap. The fold line defines at least one carton opening tab that is an integral part of said end closure flap.

대표청구항 ▼

A rectangular paperboard carton of thin profile, having a depth dimension from front-to-back substantially less than its width dimension from side-to-side, and consisting of a plurality of side walls with closure flaps attached to the free ends thereof, said closure flaps including a pair of opposed

A rectangular paperboard carton of thin profile, having a depth dimension from front-to-back substantially less than its width dimension from side-to-side, and consisting of a plurality of side walls with closure flaps attached to the free ends thereof, said closure flaps including a pair of opposed secondary flaps foldably attached to the side walls along the depth dimension of said carton and a pair of opposed primary flaps including a lowermost primary flap and an uppermost primary flap foldably attached to the side walls along the width dimension of said carton, said opposed primary flaps each having a length dimension less than the depth dimension of said carton so as to only partially overlap one another at Their extreme free edges when folded and secured together, the improvement residing in an easy opening means applied to the uppermost one of said primary closure flaps, said easy opening means comprising: a. a single, substantially straight perforated tear line in the uppermost primary closure flap located near the extreme free edge thereof so as to lie along the width dimension of said carton at or near the geometric center of the depth dimension of said carton in its erected condition; b. said perforated tear line commencing at one edge of said uppermost primary closure flap and continuing in said closure flap along the width dimension of said carton to the opposite edge of said uppermost primary flap; and, c. at least one unsecured carton opening tab integral with and wholly formed within said uppermost primary closure flap at one side thereof, said carton opening tab being defined by a fold line in said uppermost primary closure flap that extends from one edge of said primary closure flap to intersect said perforated tear line whereby the carton is opened by inserting a opening means underneath the unsecured carton opening tab so as to tear the uppermost primary closure flap along the single perforated tear line.