US3366307A - Cardboard box - Google Patents

Cardboard box Download PDF

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Publication number
US3366307A
US3366307A US582372A US58237266A US3366307A US 3366307 A US3366307 A US 3366307A US 582372 A US582372 A US 582372A US 58237266 A US58237266 A US 58237266A US 3366307 A US3366307 A US 3366307A
Authority
US
United States
Prior art keywords
end flap
slot
side walls
overlying
lock tongue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US582372A
Other languages
English (en)
Inventor
Persson Karl Rune
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sprinter Pack AB
Original Assignee
Sprinter Pack AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sprinter Pack AB filed Critical Sprinter Pack AB
Application granted granted Critical
Publication of US3366307A publication Critical patent/US3366307A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/18—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding a single blank to U-shape to form the base of the container and opposite sides of the body portion, the remaining sides being formed primarily by extensions of one or more of these opposite sides, e.g. flaps hinged thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/10—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body

Definitions

  • This invention relates to cardboard boxes in the form of parallelepipeds having two wide side walls, two narrow side walls and two opposite end walls, wherein one of the narrow side walls is formed by two overlapping wing flaps at the longitudinal edges of the wide side walls, whereas the end walls are formed by overlapping end flaps at the ends of the wide side walls, and wherein each end wall is locked due to the fact that the front edge of the overlying end flap is formed with a lock tongue inserted through a corresponding slot in the underlying end flap which has two slots parallel to the longitudinal edges of the end wall, one of said slots receiving the lock tongue of the overlaying end flap and the other one being located right below an additional slot in the overlying end flap, which additional slot has a deviating portion along part of its length, said portion forming a second look tongue which extends in a direction opposite to the direction of the first-named lock tongue and is flexed down into the slot of the underlying end flap for holding the slot edges located on either side of the lock tongue in a position in which
  • the end walls are formed and then the box is placed on one of the narrow side walls While the other narrow side wall is left open due to the fact that the wing flaps at that opening are in upright positions. In this position the box is filled and is then closed by turning the wing flaps downward and glueing or heat sealing said flaps.
  • the general object of the invention is to provide a box referred to above which is easy to open and also can conveniently be closed again.
  • the box according to the invention is characterized by the features indicated in the annexed claims. Due to the fact that the opposite directed lock tongues are held in place by the two slots the tongues can be relatively short which is advantageous from the point of view of preventing the lock tongues from getting locked by freezing.
  • the strip-like portion of the overlying end flap located between the lock tongues can therefore very easily be torn off along the fold lines and slots according to the invention for opening the box. Thereafter renewed closing is possible by means of the remaining portion of the overlying flap and the side tabs at the ends of the underlying flap.
  • FIG. 1 illustrates the blank for making the box according to the invention.
  • FIG. 2 illustrates the box in upright position for filling.
  • FIG. 3 is a diagrammatic perspective view of one of the end walls of the box.
  • FIG. 4 is a perspective view of the other end wall of the box provided with projecting tabs which facilitate tearing for opening this end wall.
  • FIG. 5 is a cross-sectional View along the line 55 in FIG. 3 and illustrates how the two oppositedly directed lock tongues are held in place each by a slot in the underlying end flap.
  • FIG. 6 is a perspective view of the end wall shown in FIG. 4 after tearing and opening
  • FIG. 7 is a perspective view of the end wall in FIG. 6 after renewed closing.
  • FIG. 1 The blank shown in FIG. 1 is by longitudinal and transverse fold lines subdivided into two wide side walls 10, 11 and a narrow side wall 12 between the wide side walls. Wing flaps 13, 14 at the longitudinal edges of the wide side walls are intended to form the other narrow side wall of the erected box.
  • end flaps 15, 16 having each two parallel slots 17, 18.
  • end flaps 19, 20 having each a lock tongue 21 at the front edge and a slot 22 which along part of its length has a deviating portion 23 forming a small lock tongue 24 which extends in a direction opposite to the direction of the lock tongue 21.
  • the end flap 20 also has weakening lines and slots 25 located in line with the slot 22.
  • the weakening slots have obliquely laterally directed portions which facilitate tearing off of the end flap in a manner described below.
  • Provided at the ends of the end flap 20 are two freely projecting tabs 26 which facilitate the tearing operation.
  • the other end flap 19, too, may be provided with weakening lines and tear-off tabs for facilitating tearing in the manner described above.
  • end flaps 15, 16 have extensions in the form of side tabs 27, 28 which have a rounded edge 29 on one side.
  • the end flaps 19, 20 provided with the lock tongues form the overlying end flaps at the end walls.
  • the lock tongues 21 are inserted through the slots 18 and the final locking is effected by subjecting the triangular lock tongu1es'24 to external pressure so that they will snap down through the slot 17 to the locked position shown in FIG. 5. It will be seen that in this position the lock tongue 24 extends down below one edge of the slot 17 in the underlying end flap. At the same time the slot edges on either side of the lock tongue 24, i.e., the edges which merge into the edges that define the lateral edges of the lock tongue, will cross the slot edge lying above the lock tongue.
  • the two wing flaps are folded one above the other and secured to each other by a suitable adhesive.
  • the box is opened by grasping one or the other tab 26 and tearing off the strip-like portion of the overlying flap 20 between the outer lock tongue 21 and the inner lock tongue 24. Tearing takes place along the slot 22 and the slots 25, and the two lock tongues 21, 24 will be readily withdrawn from their slots.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
US582372A 1965-09-30 1966-09-27 Cardboard box Expired - Lifetime US3366307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE12696/65A SE326131B (xx) 1965-09-30 1965-09-30

Publications (1)

Publication Number Publication Date
US3366307A true US3366307A (en) 1968-01-30

Family

ID=20296161

Family Applications (1)

Application Number Title Priority Date Filing Date
US582372A Expired - Lifetime US3366307A (en) 1965-09-30 1966-09-27 Cardboard box

Country Status (6)

Country Link
US (1) US3366307A (xx)
FI (1) FI45943C (xx)
GB (1) GB1112475A (xx)
NL (1) NL147998B (xx)
NO (1) NO116893B (xx)
SE (1) SE326131B (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201292A (en) * 1979-01-12 1980-05-06 Robertson Paper Box Co., Inc. Dispenser carton
US7314159B2 (en) 2002-11-01 2008-01-01 Smurfit-Stone Container Enterprises, Inc. Quadcorner tray wrapper designs
US9296509B2 (en) 2004-04-26 2016-03-29 Westrock Shared Services, Llc Integrated carton lid designs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8905362D0 (en) * 1989-03-09 1989-04-19 Premier Brands Uk Improvements relating to packaging containers
DE102011009151A1 (de) * 2011-01-22 2012-07-26 Edgar Weissbacher Zuschnitt für eine Umverpackung und Anordnung mit einem erfindungsgemäßen Zuschnitt

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104795A (en) * 1963-09-24 Carton end closure
FR1355681A (fr) * 1963-02-05 1964-03-20 Avot Vallee Ets Dispositif de fermeture pour boîtes pliantes et autres applications

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104795A (en) * 1963-09-24 Carton end closure
FR1355681A (fr) * 1963-02-05 1964-03-20 Avot Vallee Ets Dispositif de fermeture pour boîtes pliantes et autres applications

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201292A (en) * 1979-01-12 1980-05-06 Robertson Paper Box Co., Inc. Dispenser carton
US7314159B2 (en) 2002-11-01 2008-01-01 Smurfit-Stone Container Enterprises, Inc. Quadcorner tray wrapper designs
US20080067224A1 (en) * 2002-11-01 2008-03-20 Oscar Rochefort Quadcorner tray wrapper designs
US7861917B2 (en) 2002-11-01 2011-01-04 Smurfit-Stone Container Enterprises, Inc. Quadcorner tray wrapper designs
US9296509B2 (en) 2004-04-26 2016-03-29 Westrock Shared Services, Llc Integrated carton lid designs

Also Published As

Publication number Publication date
NL6613746A (xx) 1967-03-31
NO116893B (xx) 1969-06-02
SE326131B (xx) 1970-07-13
FI45943B (xx) 1972-07-31
NL147998B (nl) 1975-12-15
GB1112475A (en) 1968-05-08
FI45943C (fi) 1972-11-10

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