发明名称 CARTON LOCK CONSTRUCTION
摘要 A carton lock construction is provided for releasably securing a cover in a closed overlying relation with respect to the open top of a tray. One lock component of the carton includes a flap hingedly connected to the upper edge of the tray delimiting the open top thereof. The flap, when in a locking position, assumes an upright position disposed in telescoping relation behind a depending wall of the closed cover. The flap is provided at its lateral end limits with substantially flat inwardly projecting locking ledges. The ledges are provided with broad substantially flat surfaces which are located intermediate the flap hinge and the upper elongated edge of the flap. The cover depending wall is provided with a pair of inwardly projecting protuberances which engage the corresponding flap locking ledges and retain the cover in its closed position.
申请公布号 US3645436(A) 申请公布日期 1972.02.29
申请号 USD3645436 申请日期 1970.06.03
申请人 PACKAGING CORP. OF AMERICA 发明人 JAMES W. BOYD;CLIFFORD H. BESSETT
分类号 B65D85/32;(IPC1-7):B65D5/66 主分类号 B65D85/32
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