US3653579A - Folding carton consisting of a strip of sheet material folded to form a tube and provided with end walls - Google Patents

Folding carton consisting of a strip of sheet material folded to form a tube and provided with end walls Download PDF

Info

Publication number
US3653579A
US3653579A US45776A US3653579DA US3653579A US 3653579 A US3653579 A US 3653579A US 45776 A US45776 A US 45776A US 3653579D A US3653579D A US 3653579DA US 3653579 A US3653579 A US 3653579A
Authority
US
United States
Prior art keywords
tube
folded
flap
blank
folding
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
US45776A
Other languages
English (en)
Inventor
Fedor Stranicky
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.)
SIKOB AB
SVENSK INDUSTRIES KONSTRUKTIONS-OCH BERAKNINGSKONTOR SIKOB AB
Original Assignee
SIKOB 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 SIKOB AB filed Critical SIKOB AB
Application granted granted Critical
Publication of US3653579A publication Critical patent/US3653579A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D5/02—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
    • B65D5/08—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 portions of body, e.g. flaps, interconnected by, or incorporating, gusset folds

Definitions

  • ABSTRACT A folding carton comprising a blank of sheet material folded to form a tube having at least one plane side wall and at least at one end of the tube an end wall.
  • the end wall consists of a flap cut out in the plane side wall of the tube and folded an angle of 180 along a first fold line towards and beyond the end of the tube and then is folded along a second fold line to cover the end of the tube.
  • endwalls consisting of flaps protruding beyond the longitudinal side edges of the substantial strip with respect to the folding direction of the strip, which flaps are folded to close the ends of the tube.
  • a further disadvantage is that the outersurfaces of the end walls of the ready-folded carton consist of the surface of the strip of material facing theinterior of the tube when the tube is folded. Accordingly, the strip of material, as a rule, has to be glazed or printed on both surfaces. Moreover, the folded carton cannot be folded around an object to be packed but'has to be finished before the object is inserted into the folded carton.
  • This invention relates to a folded carton consisting of a strip of sheet material having straight edges, for example a strip of boxboard, folded to form a tube having at least one plane side wall and at least at one end of the tube an end wall consisting of a flap cut out and folded from a plane side wall of the tube.
  • the object of the invention is the provision of a folded carton having the advantages of the known folded cartons but not their disadvantages, Le, a folded carton which can be readily manufactured without any appreciable waste of material. Moreover, the folded carton should be suitable for being manufactured by a strip of sheet material obtained from a storage reel.
  • the invention is characterized in that said flap is folded 180 along a first fold line towards and beyond one end of said tube and then is folded along a second fold line to cover this end of the tube.
  • the folding carton can be finished without the end walls being folded to interfere into the interior of the folding carton, and the distance between the end walls of the folding carton is equal to the total width of the blank of sheet material, i.e., no dead space is formed at the ends of the folding carton.
  • By dimensioning the width and length of the cut out flap larger than the cross section dimensions of the tube it is possible to provide the flap with edge portions which folded perpendicular to the plane of the flap apply against the outer surfaces of the side walls of the end of said tube.
  • the opening formed by said flap cut out in the side wall or walls of the tube can be covered by an additional side wall of the tube so that a completely closed folded carton is obtained.
  • a very essential advantage of the folded carton according to the invention is that a strip of sheet material can be used being printed or having a surface treatment on only one side without the printed side of the end walls being turned inwardly.
  • a folded carton having the printed side of all side walls turned outwardly is accordingly obtained if the folding carton is designed as set forth in claim 4.
  • An additional side wall of the tube covering the opening formed by the end wall flap may consist of a strip of preferably transparent material glued to the blank of sheet material, which strip can be glued to the and fro betweentwo opposing side wallsand form a plurality of parallelcompartments in the longitudinal direction of the tube. Also an embodiment'of this kind is obtained without waste of material.
  • the provision of compartments of this kind in connection with known folding cartons having projecting end wall flaps is accompanied by an excessively high consumption of material.
  • FIG: I is a perspective view of a first stage of finishing of a folding carton.
  • FIGS. 2 to 3 illustrate, in perspective view, three different stages ofvthe finishing of a folding canon
  • FIG.4 illustrates, in perspective view, a folding carton having an end wall provided with edge portions intended to be applied against the end portion of the tube
  • FIG. 5 illustrates, in perspective view, a modification of the carton shown in FIG.'4 before the closing of the end of the tube
  • FIGS. 6 and 7 illustrate, in perspective view, two embodiments of a carton in accordance with the invention and provided with interior compartments
  • FIGS. 9 to 12 illustrate, in plan views, an end view and a side view, respectively, different steps of the finishing of a carton provided with lockable end flaps,
  • FIG. 13 is an end view of a carton having reinforced side walls
  • FIG. 14 is an end view of a modification of the carton shown in FIGS. 9 to 12.
  • FIG.1 a tube is shown having a rectangular cross section and being formed by winding astrip of boxboard.
  • the tube is provided with a top wall consisting of two walls 1, 2, two narrow side walls 3, 4 to which end portions 5, 6 of the strip are glued, and a bottom wall.
  • Two flaps 7, 8 are cut out in the top wall 1 which flaps in FIG. 2 are shown folded back an angle of 180 beyond the ends of the tube and in FIG. 3 are shown folded down further an angle of so that the flapsare positioned to cover the ends of the tube.
  • a fold-line'9, 10 is provided defining an edge portion intended to be foldedin between the flaps and the inside of the bottom wall of the tube.
  • the folding carton shown in FIGS. 1 to 3 is especially suitable for packing frozen products since an edge ll, 12 protruding from the wall 2 is formed at each end of the carton permitting circulation of air between the cartons of a stack of cartons.
  • the wall 2 and the end portion 6 can be omitted in the carton shown in FIGS. 1 to 3, in which case an open-topped carton is achieved.
  • the projecting folded edges 11 and 12 in this case form a reinforcement of the edges of the opening.
  • the flaps 7 and 8 can be cut out from the lower wall 2. In this case, of course, the flaps are folded out before folding the wall I to the position shown in FIG. 1.
  • the wall 1 and the end portion 5 can be designed as a hinged cover.
  • the flaps 7, 8 suitably include a portion of the adjacent walls 4 and 5, as shown in FIG. 4.
  • the dimensions of the flaps 7, 8 exceed the dimensions of the cross section of the tube so that edge portions 13 are formed which folded perpendicular to the planes of the flaps can be inserted along the insides of the walls of the end portions of the tube.
  • the wall 2 may be provided with a tear-off line so that a hinged cover is obtained in at least a part of the opening in the wall 1.
  • the edge portions 13 of these flaps 7, 8 can be joined at their corners and be pushed on the outsides of the end portions of the tube.
  • a carton of this kind can be easily opened and closed by one of the flaps and is especially suitable as a cigarette packet.
  • FIG. 5 discloses an embodiment similar to the carton shown in Fig. 4 but having the wall 2 omitted and replaced by a strip 14 of for instance transparent material, which strip is glued to the inside of the tube and extends beyond the ends of the tube.
  • the projecting end portions of the strip 14 can be provided with transversal seals and can be folded into the tube before the closing of the carton by means of the flaps 7, 8. If desired the strip may be arranged to cover only the end opening of the tube.
  • FIG. 6 illustrates an embodiment of the invention in which a very high saving of material is obtained.
  • the folding carton consists of an elongated strip of material which is folded in a similar way as is shown in FIG. 1 but which extends from the end portion 6, shown in FIG. 1, in a plurality of curves 15 to and fro between the walls 3 and 4 to which walls the curved portions are glued so that a plurality of parallel, longitudinal compartments are formed in the tube.
  • the ends of the tube are closed by flaps 7, 8 in the same way as is shown in FIGS. 1 to 3. if a closed carton is desired the provision of the flaps 7, 8 cause an increase of the length of the blank by the distance corresponding to the width of the flaps.
  • FIG. 8 illustrates an embodiment in which the double walls 1, 2 are formed by folding back the blank of sheet material in the direction contrary to the winding direction.
  • folding cartons shown on the drawings have a rectangular cross section it is evident that the cartons can have various cross sections, provided a plane side wall is present in which the flap or flaps can be cut out.
  • FIG. 9 illustrates the unprinted side of a blank of boxboard cut from a web of material wound on a bobbin and having only one printed side. At the same time as the blank is cut from the web two end wall flaps 21, 22 are cut, which flaps are connected to the rest of the blank at the fold lines 23, 24.
  • the blank is divided by fold lines into a narrow side wall 25, a broad side wall 26, a narrow side wall 27, a broad side wall 28, a narrow side wall 29a, 29b, and a fastening flap 30.
  • the fastening flap 30 is connected to theside wall 29a, 2917 by two narrow strips 31, 32, which remain after the cutting of the end wall flaps 21, 22 and their side edges 33 and locking tongues 34.
  • FIG. 9 the end wall flaps 21, 22 are shown folded back beyond and eventually glued to the narrow strips 31, 32.
  • FIG. 10 illustrates the blank shown in FIG. 9 but folded along a central fold line on the side wall 29a, 29b at the same time as glueing is performed of the side portions applied against each other, which glued side portions are unprinted.
  • the narrow side wall 27 has been folded up perpendicular to the side wall 28, the broad side wall 26 has been folded in parallel to side wall 28, and the narrow side wall 25 has been folded down and glued against the folded-up side wall 290.
  • the end wall flaps 21, 22 can be folded against the ends of the carton and at the same time the locking tongues 34 can be inserted into slots 35 in the narrow side walls 25, 27, as shown in FIG. 12.
  • locking tonques 34 may be arranged at the remaining edge wall of the flaps 21, 22 and inserted into slots in the broad side wall 26. This is possible if a strip of waste material arises in an interspace between the flaps 21, 23 at cutting these flaps and their edge walls 33. If
  • a locking tongue 34 of one of the end wall flaps is to be cut from the adjacent edge wall of the other end wall flap, and the reverse, which decreases the stiffness of the end wall flaps.
  • the locking tongues of at least one of the end wall flaps may be omitted and a corresponding locking be obtained by glueing or merely by spring action.
  • the side walls 25, 26 in FIGS. 12 and 13 can be omitted.
  • the narrow side walls are in this case supported by the edge walls 33 of the flaps 21, 22 and, eventually, by the locking tongues 34.
  • the invention is not limited to the embodiments shown and described but further modifications are possible within the scope of the invention defined by the accompanying claims, and other types of material than boxboard can be used, e. g., corrugated cardboard.
  • the side wall 25 of the carton shown in FIG. 13 can extend to and fro between the narrow side walls down towards the side wall 28 to form companments in the interior of the carton.
  • the necessary stiffness is obtained, as a rule, without using double side walls, and, hence, the carton can have the shape shown in FIG. 14 which in principle does not differ from the carton shown in FIGS. 9 to 12.
  • the opposed edge walls 33 of the end wall flaps 21, 22 can be omitted.
  • the remaining edge wall 33 at the end of the end wall flaps can be omitted or folded and glued against the flaps 21, 22. This is suitable in connection with an open-topped carton, or if the side wall 26, preferably in the embodiment shown in FIG. 13, should be used as a hinged cover.
  • a folding carton consisting of a blank of sheet material having straight edges and folded to form a tube having opposite planar side walls and at least one end wall, one of said side walls being constituted by two overlapped thicknesses of material, said end wall being formed by a flap cut out and folded from one of thicknesses of material of said one side wall, said flap being folded l along a first fold line towards and beyond one end of said tube and then folded along a second fold line to cover this end of the tube, said flap when folded from the thickness of material forming an opening in said thickness of material which is covered by the other thickness of material of said side wall.
  • a folding carton as claimed in claim I wherein the blank of sheet material is printed on only one side, the blank of sheet material being double-folded with the printed side turned out and so that a portion (2l,22,29b,30) of the blank extends along at least a part of the remaining blank, in addition to which the end wall flap (21,22) or each flap is formed by a part of the blank portion (21,22,19b,30) of the double-wall portion of the folding container which has a printed side facing the interior of the folding container.
  • a folding carton as claimed in claim 5, wherein said strip 14) attached by glueing is positioned on the inside of the tube and is adapted to form a bag-shaped lining in the tube.
  • a folding carton as claimed in claim 1 wherein the tube is provided with two opposing plane side walls (3.4), a portion (15) of the blank of sheet material being folded to and fro between said opposing side walls (3,4) forming a plurality of parallel compartments in the longitudinal direction of the tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
US45776A 1969-06-12 1970-06-12 Folding carton consisting of a strip of sheet material folded to form a tube and provided with end walls Expired - Lifetime US3653579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE08396/69A SE327163B (es) 1969-06-12 1969-06-12

Publications (1)

Publication Number Publication Date
US3653579A true US3653579A (en) 1972-04-04

Family

ID=20273955

Family Applications (1)

Application Number Title Priority Date Filing Date
US45776A Expired - Lifetime US3653579A (en) 1969-06-12 1970-06-12 Folding carton consisting of a strip of sheet material folded to form a tube and provided with end walls

Country Status (2)

Country Link
US (1) US3653579A (es)
SE (1) SE327163B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183603A (en) * 1985-12-10 1987-06-10 Matflow Ltd Package for a lady's dress
US5167324A (en) * 1991-03-28 1992-12-01 General Electric Company Shipping carton and display unit for tubes
JP2012035855A (ja) * 2010-08-04 2012-02-23 Tetsuji Kawamura 包装箱の紙材
US9066630B1 (en) * 2012-06-14 2015-06-30 Advanced Technology, Inc. Bathtub surround, kit and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732062A (en) * 1956-01-24 Display box
US2875937A (en) * 1955-04-11 1959-03-03 Continental Paper Company Carton

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732062A (en) * 1956-01-24 Display box
US2875937A (en) * 1955-04-11 1959-03-03 Continental Paper Company Carton

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183603A (en) * 1985-12-10 1987-06-10 Matflow Ltd Package for a lady's dress
GB2183603B (en) * 1985-12-10 1989-10-18 Matflow Ltd Package for a lady's dress
US5167324A (en) * 1991-03-28 1992-12-01 General Electric Company Shipping carton and display unit for tubes
JP2012035855A (ja) * 2010-08-04 2012-02-23 Tetsuji Kawamura 包装箱の紙材
US9066630B1 (en) * 2012-06-14 2015-06-30 Advanced Technology, Inc. Bathtub surround, kit and method

Also Published As

Publication number Publication date
SE327163B (es) 1970-08-10

Similar Documents

Publication Publication Date Title
US3622063A (en) Two-blank corrugated board container
US3503550A (en) Multipiece paperboard container
US2887389A (en) Cartons
US3561667A (en) Composite container
US4453631A (en) Phonograph record album and slip case
US3342329A (en) Cartons for potted plants and flowers
US2333943A (en) Greaseproof folding box
US1792627A (en) Packing case
US3399821A (en) Book wrapper
US4165030A (en) Two cell bulk box
US2410591A (en) Fiberboard cushioning filler for cartons
US1925298A (en) Box
US3235163A (en) Reinforced cartons
US3194472A (en) Shipping container
US4488675A (en) One piece interlocking outfold container
US3653579A (en) Folding carton consisting of a strip of sheet material folded to form a tube and provided with end walls
US3792811A (en) Cushioned shipping folder
US2797800A (en) Appliance container
US3712531A (en) Mailing folder
US2614745A (en) Divisible carton
US2591882A (en) Wrapper or container of cardboard or like material
US3768721A (en) Cushioned shipping folder
US2671600A (en) Shipping container
US2007697A (en) Container
US2149720A (en) Sealed shipping case