发明名称 CARTON WITH LOCKING MEANS FOR RECLOSABLE COVER
摘要 A carton formed from a single blank of foldable paperboard or the like having a reclosable cover which is hinged to the upper edge of the rear wall panel of the carton proper or tray portion and provided with front and end apron panels, which, when the cover is closed, respectively overlap the front and end wall panels of the carton. A relatively short horizontal cut, parallel with the upper edges of the front and end walls of the carton, is provided at each upper end corner formed by the front and end walls of the carton. This cut bisects the vertical crease or fold line at each corner, extending into adjacent portions of the front and end walls. That portion of the fold line above the vertical crease which extends to the upper edge of the corner is parallel with but offset towards the body of the front panel from the fold line below the cut. When the end flaps are folded at right angles along these creases, the portions above the horizontal cut are shifted outwardly from the face of the panel and present a detentlike projection, designed to coact with aligned keeper cutouts formed in the cover glue flaps to releasably lock the cover in closed position. The lock is released by applying a firm upward force on the front portion of the cover, causing an upward and inward pressure on the detents, whereby they snap out of their keeper cutouts. Reclosing the cover automatically relocks the same.
申请公布号 US3637131(A) 申请公布日期 1972.01.25
申请号 USD3637131 申请日期 1970.09.08
申请人 GULF STATES PAPER CORP. 发明人 RICHARD F. GULLIVER
分类号 B65D5/26;B65D5/42;B65D5/54;B65D5/66;(IPC1-7):B65D5/22 主分类号 B65D5/26
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