Carton with gussetted cover panels and a handle

• US 4,747,536 A
• Filed: 04/10/1986
• Issued: 05/31/1988
• Est. Priority Date: 01/22/1985
• Status: Expired due to Fees

• Current Assignee: Rock-Tenn Company (WestRock Company)
• Original Assignee: Rock-Tenn Company (WestRock Company)
• Inventors: Wischusen, Henry III
• Primary Examiner(s): MOY, JOSEPH MAN
• Application Number:
  US06/850,147
• Time in Patent Office: 782 Days
• Field of Search: 229/52 B, 229/45 R, 229/128, 229/130, 229/138, 229/141
• US Class Current: 229/128
• CPC Class Codes: B65D 5/46112 either the handle elements being formed with lugs which engage with the other side walls or closure flaps, or the other closure flaps folding over a part of the handle to maintain the handle in position

Abstract

A top-loading carton of paperboard or the like is constructed from a one-piece blank and enclosed by gussetted top panels. The top panels end in handles which define locking tabs which are received in slots in the side walls of the carton. The gusset panels urge the locking tabs into locking engagement with the slots. The end walls and top panels attached thereto taper outwardly from bottom to top of the carton, causing the side walls to bow outwardly when the top panels are closed, enhancing the appearance of the carton. The carton can be initially assembled into a collapsed flattened form from which it can be easily erected. An automatic bottom closure is provided.

Claims

1. In a carton including a side wall, an end wall foldably connected to said side wall, and a top panel foldably connected along a first edge thereof to an upper edge of said end wall, said top panel being foldable to at least partially enclose said carton, the improvement comprising:

a locking tab extending from said top panel;

said side wall defining a slot adjacent to an upper edge thereof for receiving said locking tab when said top panel is folded to at least partially enclose said carton; and

means connected to said top panel and said side wall for urging said top panel upwardly and positively engaging said locking tab with said slot.

2. The carton of claim 1, wherein said means for urging said top panel comprises:

an upper gusset panel foldably connected to a second edge of said top panel, and a lower gusset panel foldably connected to said upper edge of said side wall, said upper and lower gusset panels being foldably connected by a score line positioned to permit said gusset panels to collapse when said top panel is folded to at least partially enclose said carton.

3. A carton comprising;

a side wall;

an end wall foldably connected to said side wall;

a top panel foldably connected along a first edge thereof to an upper edge of said end wall, said top panel being foldable to at least partially enclose said carton;

an upper gusset panel foldably connected to said top panel and a lower gusset panel foldably connected to said side wall, said upper and lower gusset panels being joined by a score line extending diagonally from the intersection of said top panel, said side wall, and said end wall; and

a locking tab formed in said top panel;

said side wall defining a slot for receiving said locking tab when said top panel is folded to at least partially enclose said carton.

4. The carton of claim 3, wherein said locking tab defines an upwardly facing recess having a width approximately equal to the thickness of said side wall, such that said recess engages said side wall, thereby discouraging disengagement of said locking tab from said side wall.