US3809310A - Hexagonal container for food products or the like - Google Patents

Hexagonal container for food products or the like Download PDF

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Publication number
US3809310A
US3809310A US11959371A US3809310A US 3809310 A US3809310 A US 3809310A US 11959371 A US11959371 A US 11959371A US 3809310 A US3809310 A US 3809310A
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Prior art keywords
closure
flap
connected
side
hingedly
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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
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T Vanderlugt
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JAMES RIVER Corp OF VIRGINIA A CORP OF VA
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Brown Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D5/00Rigid 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
    • B65D5/02Rigid 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
    • B65D5/0227Rigid 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 flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D5/00Rigid 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
    • B65D5/008Rigid 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 the container body having a pyramidal shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D5/00Rigid 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
    • B65D5/02Rigid 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00Envelopes, wrappers, and paperboard boxes
    • Y10S229/902Box for prepared or processed food
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00Envelopes, wrappers, and paperboard boxes
    • Y10S229/91Bucket or pail type, i.e. liquid proof container with handle
    • Y10S229/911Bucket or pail type, i.e. liquid proof container with handle with closure

Abstract

A carton for food products or the like of generally hexagonal shape formed from an integral blank of a foldable material such as paperboard. The carton is provided with a self-locking, foldable end closure which is connected to side panels of the carton and which comprises a pair of overlapping closure flaps hingedly connected to opposing side panels which lock in place when folded downwardly by the interaction of a pair of locking tabs and retaining flaps therefor. The locking tabs are provided on one of the closure flaps and the retaining flaps are provided on a pair of web means that are associated with the other of said closure flaps and each web means hingedly connected between the closure flap and a side panel adjacent to the side panel connected with the closure flap. An integral blank from which the carton can be erected is also disclosed.

Description

[451 May 7,1974

[ HEXAGONAL CONTAINER FOR FOOD PRODUCTS OR THE LIKE Thomas VanderLugt, Jr., Kalamazoo, Mich.

[75] Inventor:

[73] Assignee: Brown Company, Kalamazoo, Mich.

[22] Filed: Mar. 1, 1971 [21] Appl. No.: 119,593

[52] US. Cl 229/26, 229/8, 229/39 R, 229/41 C, 229/52 B [51] Int. Cl B65d 5/34 [58] Field of Search 229/8, 37 R, 41 R, 41 C, 229/52 B, 24, 25, 26, 38, 39 R [56] References Cited UNITED STATES PATENTS 2,044,103 6/1936 Rossi 229/41 C 2,933,232 4/1960 Bugnon 229/52 B 3,713,576 1/1973 Goebel 229/8 2,031,806 2/1936 Weiss 229/41 C 2,828,904 4/1958 Mires et al..... 2.29/41 C 2,900,124 8/1959 Leone 229/52 B 3,014,637 12/1961 Wilson 229/41 C 3,126,140 3/1964 Lizan et al. 229/41 C Primary Examiner-William 1. Price Assistant ExaminerStephen Marcus Attorney, Agent, or Firm-Gordon W. Hueschen [5 7] 1 ABSTRACT A carton for food products or the like of generally hexagonal shape formed from an integral blank of a foldable material such as paperboard. The carton is provided with a self-locking, foldable end closure which is connected to side panels of the carton and which comprises a pair of overlapping closure flaps hingedly connected to opposing side panels which lock in place when folded downwardly by the interaction of a pair of locking tabs and retaining flaps therefor. The locking tabs are provided on one of the closure flaps and the retaining flaps are provided on a pair of web means that are associated with the other of said closure flaps and each web means hingedly connected between the closure flap and a side panel adjacent to the side panel connected with the closure flap. An integral blank from which the carton can be erected is also disclosed.

10 Claims, 10 Drawing Figures PATENTEUIM 7 I974 SHEEI 1 BF 4 INVENTOR.

mu, H w W m pwo w T m V s M. m

O Y HB PAIENTEDHAY 7 m4 SHEEI 2 BF 4 FIBAL INVENTOR. THOMAS VANDERLUGT J R.

PATENTEDHAY I 1974 SHEET 3 UF 4 INVENTOR. THOMAS VANDER LU GT JR.

FIG. 7

PATENTED m 1 m4 SHEEI l 0F 4 INVENTOR.

THOMAS VANDERLUGT JR.

HEXAGONAL CONTAINER FOR FOOD PRODUCTS OR THE LIKE BACKGROUND OF THE INVENTION This'invention relates to containers and, more particularly, to cartons for packaging foodstuffs and the like.

In many instances it is desirable to package foodstuffs and the like in canister or box-like containers that can be readily opened yet that are recloseable if the contents thereof is not immediately consumed. One typical instance is the fast-food service establishments where a consumer can purchase a pre-prepared meal such as fried chicken, for example, in a carry-out container. At the same time, in large volume operations, it is desirable that unused cartons be collapsible for shipment and storage, yet the cartons must be readily erectable when needed.

It is an object of the present invention to provide a collapsible, yet readily erectable container which is formed from an integral blank of a foldable material and which is provided with a self-locking, foldable end closure.

It is a further object to provide a container with exposed peripheral surfaces that are available for the display of promotional materials.

Still other objects will readily present themselves to one skilled in the art upon reference to the ensuing specification, the drawings, and the claims.

SUMMARY OF THE INVENTION The present invention contemplates a carton adapted to be erected from a unitary or integral blank and having six hingedly connected side panels which together define a substantially hexagonal cross-section when the carton is erected. The carton may have either straight or tapered sides, depending on the intended use. The present carton is provided with a self-locking foldable top end closure which is connected to the side panels and comprises first and second closure flaps, each hingedly connected to an opposing side panel and adapted to overlap when folded and a pair of web means associated with each closure flap, each web means being hingedly connected between the closure flap and the side panel adjacent to the side panel which isconnected to the closure flap. A pair of outwardly extending locking tabs are provided on opposing sides of the second closure flap and a pair of locking tab retaining flaps are provided on the web means associated with the first closure flap.

Preferably, the closure flaps are hingedly connected to their respective side panels along a curved score line.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings, FIG. 1 is a plan view of an integral carton blank cut and scored so as to provide a carton of this invention;

FIG. 2 is a plan view of the blank shown in FIG. 1 with the bottom end flaps folded inwardly;

. sequent erection;

FIG. 4 is a perspective view of an erected carton prior to closure;

FIG. 5 is a perspective view of the carton shown in FIG. 4 when closed;

FIG. 6 is a plan view of an integral carton blank similar to that shown in FIG. 1 but additionally provided with strengthening flaps adapted to be folded inwardly over the closure flaps;

FIG. 7 is a plan view of the blank shown in FIG. 6 with the bottom end flaps folded inwardly;

FIG. 8 is a plan view of the blank shown in FIGS. 6 and 7 completely folded and ready for gluing and subsequent erection;

FIG. 9 is a perspective view of a carton erected from the blank shown in FIGS. 6, 7, and 8 prior to closure; and

FIG. 10 is a perspective view of the carton shown in FIG. 9 when closed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description reference will be made to the accompanying drawings for a better understanding of this invention. In the drawings all parts are numbered, and the same numbers are used to identify the same parts in the several FIGURES. Additionally, areas having an adhesive applied thereon are indicated by stippled shading.

Referring to FIG. 1, an integral carton blank 10 cut and scored so as to provide a carton of the present invention comprises six side panels 11, 12, 13, 14, 15 and 16 hingedly connected by means of creased score lines l7, l8, 19, 20 and 21. Glue flap 22 is provided alongside side panel 11 and is hingedly connected thereto by creased score line 23. Adhesive region 24 on side panel 16 is adapted to contact and secure glue flap 22 when blank 10 is folded over.

Closure flap 25 is hingedly connected to side panel 14 along creased score line 26 which is preferably curved so as to gain additional pull strength. Closure flap 25 is also provided with locking tabs 27 and 28 situated diametrically opposite each other along the sides of flap 25. Creased score lines 19 and 20 may be extended so as to traverse also flap 25 in order to facilitate the manipulation thereof; however, this isoptional. Web means 29 and 30, preferably trapezoidal in shape, are also associated with closure flap 25 and are hingedly connected by means of creased score lines between flap 25 and side panels 13 and 15, respectively. Cut-outs 31 and 32 in flap 25 provide finger grip means for carrying the erected carton.

Another closureflap, flap 33 (FIGS. 3, 4 and 5), is constructed upon gluing from flap means 34 which constitutes a major portion thereof and is hingedly con- I nected to side panel 11 (FIGS. 1 and 2) by creased score line 35 which is preferably curved. Web means 39 is hingedly connected between flap means 34 and side panel 12. If desired, creased score lines 17 and 23 may be extended so as to traverse flap means 34 in a manner similar to flap 25. Appendage 36 constitutes a minor portion of flap 33 and is hingedly connected to web means 37 along a creased score line. Web means 37, in turn, is hingedly connected to side panel 16 by a creased score line. Adhesive region 38 on appendage 36 is adapted to contact and secure flap means 34 when blank is folded over. Appendage 36 and flap means 34 when glued together form closure flap 33. Cut-outs 40 and 41 in flap means 34 are adapted to be substantially coextensive with cut-outs 31 and 32 when blank 10 is folded over and provide finger grip means for carrying the erected carton.

Web means 37 and 39 are preferably triangular in shape, and are provided with locking tab retainer means 42 and 43, respectively, along the free sides thereof, which retainer means are adapted to removably engage locking tabs 28 and 27, respectively, thereby securing closure flap 25 in a folded down position.

Bottom closure flaps 44, 45, .46, 47, 48 and 49 are hingedly connected to respective side panels l1, 12, 13, 14, and 16. Flaps 45 and 48 are provided with quadrilateral glue tabs 50 and 51 hingedly connected thereto along lines of perforations. Flap 47 is provided with a substantially trapezoidal glue tab 52 hingedly connected thereto along a perforated line. Preparatory to folding and gluing of the carton blank, bottom closure flaps 44, 45, 46, 47, 48 and 49 are folded inwardly as shown in FIG. 2 with glue tabs 50, 51 and 52 folded back against their respective flaps thereby exposing the adhesive regions of these tabs. When blank 10 is folded over, glue tab 50 is adapted to contact and adhesively secure bottom closure flap 46, glue tab 51 is adapted to contact and adhesively secure bottom closure flap 49, and glue tab 52 is adapted to contact and adhesively secure bottom closure flap 48. With the flaps and the respective tabs arranged in the foregoing manner the gluing can be effectively carried out on the socalled right-angle gluing machine. A folded over and glued carton blank is shown in FIG. 3.

When it is desired to erect a carton from the folded over and glued carton blank, the outer edges thereof are simply pushed towards each other whereupon the carton bottom automatically snaps in place and the carton assumes the configuration shown in FIG. 4. The desired contents can then be placed in the erected carton and closure effected by first folding down closure flap 33 and then closure flap 25 so that the finger gripping means of both flaps are in substantial registry and locking tabs 27 and 28 snap under the respective locking tab retainer means 43 and 42. The closed carton is shown in FIG. 5.

Another embodiment of the present invention is shown in FIGS. 6, 7, 8, 9 and 10. In these FIGURES, the reference characters used in connection with the various parts are correlated to like parts shown in FIGS. 1 through 5 by using the lOO-series of reference characters. That is, like parts of carton blank 10 and carton blank 100 are designated by reference characters XX and IXX, respectively. For example, glue flap 22 of blank 10 is similar to glue flap 122 of blank 100. Thus no further description of the like parts and their interaction is necessary inasmuch as the foregoing description of blank 10 is equally applicable to blank 100.

tion of flap means 134 and closure flap 125 when folded thereover. Preferably at least portions of members 153 and 154 are covered with an adhesive and are adapted for adhesive affixation to flap means 134 and closure so that openings 155 and 156 of member 153 are in substantial registry with cut-outs and 141 and'so that openings 157 and 158 of member 154 are in substantial registry with cut-outs 131 and 132, respectively. Of course, the strengthening members such as 153 and 154 need not be hingedly connected to flap means 134 and closure 125 but can also be fabricated of a separate piece of paperboard or the like and then adhesively affixed in place.

A The foregoing description and the drawings are intended as illustrative but are not to be construed as limiting. Still other variations within the spirit and scope of this invention will readily present themselves to one skilled in the art.

I claim:

l. A carton erected from a unitary blank of foldable sheet material having six hingedly connected side panels defining a substantially hexagonal cross-sectional shape when completely erected, and a self-locking, foldable top end closure connected to said side panels and comprising overlapping first and second closure flaps, each hingedly connected to an opposing side panel and adapted to overlap when folded; a pair of webs associated with each closure flap, each of said closure flaps having a pair of webs one on each side thereof, each of said webs being hingedly connected at one edge to said closure flap and at the other edge to the side panel adjacent to the side panel connected to said closure flap; a pair of outwardly extending locking tabs provided on opposing sides of said second closure flap; and a pair of locking tab retaining flaps each hingedly connected at only one edge to one of the webs hingedly connected to said first closure flap engaging and retaining said locking tabs when said top end closure is closed in place.

2. The carton of claim 1 wherein cut-outs are provided in each closure flap providing finger grip means.

3. The carton of claim 1 wherein each closure flap is reinforced by an underlying strengthening member.

4. The carton of claim 1 wherein said webs associated with the first closure flap are trapezoidal in shape with the longer base of the trapezoid being connected to the first closure flap and said webs associated with the second closure flap are triangular in shape with the longest side of the triangle being connected to said side panel.

5. The carton of claim 1 whereinthe closure flaps are hingedly connected to the respective side panels along a curved score line.

6. An integral paperboard blank for a substantially hexagonal carton cut and scored to provide a series of six hingedly connected side panels, a closure flap member constituting a major portion of a first closureflap hingedly connected to the first of said six side panels; a first web hingedly connected between said closure fiap member and the second consecutive side panel and provided with a hingedly connected locking tab retaining flap, second closure flap hingedly connected to the fourth consecutive side panel and provided with a pair of opposed, outwardly extending locking tabs; a second web hingedly connected between said second closure flap and the third consecutive side panel; a third web hingedly connected between said second closure flap and the fifth consecutive side panel; a fourth web hingedly connected to the sixth consecutive side panel; and a complementary closure flap member constituting a minor portion of said first closure flap hingedly connected to the fourth web; said fourth web being provided with a locking tab retaining flap hingedly connected thereto along a free side thereof and situated between said sixth consecutive side panel and said complementary closure flap member.

7. The blank of claim 6 wherein cut-outs are pro vided in the first closure flap member and in the second closure flap providing finger grip means.

8. The blank of claim 6 wherein the closure fiap score line.

Claims (10)

1. A carton erected from a unitary blank of foldAble sheet material having six hingedly connected side panels defining a substantially hexagonal cross-sectional shape when completely erected, and a self-locking, foldable top end closure connected to said side panels and comprising overlapping first and second closure flaps, each hingedly connected to an opposing side panel and adapted to overlap when folded; a pair of webs associated with each closure flap, each of said closure flaps having a pair of webs one on each side thereof, each of said webs being hingedly connected at one edge to said closure flap and at the other edge to the side panel adjacent to the side panel connected to said closure flap; a pair of outwardly extending locking tabs provided on opposing sides of said second closure flap; and a pair of locking tab retaining flaps each hingedly connected at only one edge to one of the webs hingedly connected to said first closure flap engaging and retaining said locking tabs when said top end closure is closed in place.
2. The carton of claim 1 wherein cut-outs are provided in each closure flap providing finger grip means.
3. The carton of claim 1 wherein each closure flap is reinforced by an underlying strengthening member.
4. The carton of claim 1 wherein said webs associated with the first closure flap are trapezoidal in shape with the longer base of the trapezoid being connected to the first closure flap and said webs associated with the second closure flap are triangular in shape with the longest side of the triangle being connected to said side panel.
5. The carton of claim 1 wherein the closure flaps are hingedly connected to the respective side panels along a curved score line.
6. An integral paperboard blank for a substantially hexagonal carton cut and scored to provide a series of six hingedly connected side panels, a closure flap member constituting a major portion of a first closure flap hingedly connected to the first of said six side panels; a first web hingedly connected between said closure flap member and the second consecutive side panel and provided with a hingedly connected locking tab retaining flap, second closure flap hingedly connected to the fourth consecutive side panel and provided with a pair of opposed, outwardly extending locking tabs; a second web hingedly connected between said second closure flap and the third consecutive side panel; a third web hingedly connected between said second closure flap and the fifth consecutive side panel; a fourth web hingedly connected to the sixth consecutive side panel; and a complementary closure flap member constituting a minor portion of said first closure flap hingedly connected to the fourth web; said fourth web being provided with a locking tab retaining flap hingedly connected thereto along a free side thereof and situated between said sixth consecutive side panel and said complementary closure flap member.
7. The blank of claim 6 wherein cut-outs are provided in the first closure flap member and in the second closure flap providing finger grip means.
8. The blank of claim 6 wherein the closure flap member and the second closure flap each are provided with a strengthening member hingedly connected thereto and adapted for folding back against said closure flap member and said second closure flap, respectively.
9. The blank of claim 6 wherein said first and fourth webs are triangular in shape and said second and third webs are trapezoidal in shape.
10. The blank of claim 6 wherein the closure flap member and the second closure flap are hingedly connected to the respective side panels along a curved score line.
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US4264031A (en) * 1980-01-16 1981-04-28 Western Kraft Paper Group Willamette Industries, Inc. Folding, self-locking carton with separate lid including integral handle
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US20140042217A1 (en) * 2012-08-09 2014-02-13 Russell E. Houck Drink Cup for Road Running Races
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US8955738B2 (en) 2011-05-17 2015-02-17 Pactiv Packaging Inc. Food scoop with top closure
US20150097026A1 (en) * 2012-05-25 2015-04-09 Hanpak Limited Cup with integral closure flaps restricting spillage
US9211970B2 (en) 2010-06-21 2015-12-15 Lbp Manufacturing Llc Food tray
US9309023B2 (en) 2013-11-01 2016-04-12 Lbp Manufacturing Llc Dual compartment food tray
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US9737161B1 (en) * 2016-09-09 2017-08-22 Metsä Board Oyj Paper cup, a blank for a paper cup, and use of a paper cup
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