US3549082A - Reclosable carton - Google Patents

Reclosable carton Download PDF

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Publication number
US3549082A
US3549082A US726324A US3549082DA US3549082A US 3549082 A US3549082 A US 3549082A US 726324 A US726324 A US 726324A US 3549082D A US3549082D A US 3549082DA US 3549082 A US3549082 A US 3549082A
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US
United States
Prior art keywords
flap
tongue
carton
flaps
slits
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
US726324A
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English (en)
Inventor
Warren O Simpson
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.)
Kellanova
Original Assignee
Kellogg Co
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 Kellogg Co filed Critical Kellogg Co
Application granted granted Critical
Publication of US3549082A publication Critical patent/US3549082A/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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/541—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps

Definitions

  • the flap from which the tongue extends is further formed with a line of slits extending to or adjacent to the tongue root portion and which slits further extend obliquely therefrom to or adjacent to a side or transverse edge portion of the flap to define an opposed pair of substantially triangular components which are sealed against the lower adjacent flap.
  • the top closure flap may be elevated by separating it from said triangular parts in a progressive action started by first lifting the tongue.
  • the complete tongue is adapted for firm interlocking engagement within a complementary slit formed in an adjacent flap disposed normally therebeneath.
  • the paperboard in the line of slits adjacent the root of the tongue is adapted to rupture relatively easier than the slits radiating outwardly therefrom.
  • the blank from which the carton is formed may be produced in a series wherein the tongue portion projecting from one of the top flaps is interdigitated with or cut from the bottom closure flap on an adjacent carton blank.
  • the present invention relates to an easy opening, reclosable carton formed from a paperboard blank or a series of blanks, cut, scored and perforated or slit to define one or more rectangular cartons having sidewalls and top and bottom closure flaps hinged to the sidewalls.
  • the top closure flaps comprise an opposed pair of spaced dust flaps and an opposed pair of interengageable closure flaps in partial or overlying relationship to each other which are sequentially folded and secured over the dust flaps.
  • the lowermost one of the interengageable closure flaps is medially formed in a tucking slot adapted to receive a tongue or tuck tab from the uppermost of the interengageable closure flaps for reclosing purposes after the carton has once been opened.
  • the uppermost closure flap is formed with a tongue which extends from what is normally its outerlongitudinal edge (or edge parallel to its fold line) and is not sealed down.
  • This uppermost flap is further formed with slit lines extending from the root of the tongue, which is normally tapered, at and to the fiap fold line towards or to the side edges of the top closure flap.
  • the lines of slit or incision at or adjacent the root of the tongue preferably are relatively longer than the remaining slits defining the generally triangular sealed down tabs so as to enable the line of slits to rupture relatively easy at the area of the tongue root when one merely lifts the tongue, or with the aid of one or two fingers inserted thereunder and moved laterally.
  • the present invention permits economy of materials by using closure flaps which are lesser in dimension than the carton in a direction normal to the hinge line of the closure flaps, i.e. which do not extend completely over the carton top (although a sufficient length to overlap and provide a reenforced or double thickness at one side of the line of slits).
  • economy of materials is effected by at least partially cutting of the tongue or tuck tab in a top flap of one carton from a bottom flap of an adjacent carton, the cartons being formed and cut in series. The portion cut from the bottom flap does not prevent the forming of a secure bottom closure.
  • the tab extending from one of the top flaps and preferably further formed by separation from the opposed pair of scaled down triangular strips provides a relatively long tongue adapted for firm and secure reclosing.
  • FIG. 1 is a plan view of a blank showing the top and bottom portions of a carton formed in accordance with the present invention.
  • FIG..2 is a perspective view of a top of a carton formed from the blank of FIG. 1 before it is closed down on its adjacent flap in the process of manufacture.
  • FIG. 3 is a perspective view of the top of the carton formed from the blank of FIG. 1 and which is progressive to FIG. 2, and shows the top flap as originally closed down before being opened for the first time.
  • FIG. 4 is another perspective view of the carton top progressive to the view of FIG. 3 illustrating a step in the original or initial opening of the carton.
  • FIG. 5 is another perspective view'of the carton top progressive to the view of FIG. 4 showing the carton opened up and showing the top flap 27 elevated and separated from an opposed pair of triangular portions which were originally a part thereof but which remained sealed down.
  • FIG. 6 is a view progressive to that of FIG. 5 showing the carton top being closed after having been initially opened and the components of top flap 27 separated. 7
  • FIG. 7 is a perspective view of the carton top progressive to that of FIG. 6 showing the tongue on the top closure flap inserted within the slot of the lower top closure flap.
  • FIG. 8 is a blank development view similar to that of FIG. 1 illustrating certain areas provided with adhesive and other areas printed with certain lacquers or inks having glue repellency characteristics which are adapted to prevent adhesion of adjacent parts.
  • FIG. 9 is a perspective view of the top of the carton similar to that of FIG. 2 but employing the adhesive and ink hold-out areas of FIG. 8 prior to the sealing of any of them.
  • FIG. 10 is a view progressive to that of FIG. 9 showing the lower one of the top closure flaps sealed down against the dust flaps.
  • FIG. 11 is a modified form of construction, the view being a perspective view of the top of the carton similar to that of the view of FIG. 3.
  • the panels 10 and 11 define carton sidewalls, the panel 10 being hinged at 12 to the end panel 13, and at 14 to the opposedpanel 15.
  • the panel 11 is hinged at 16 to the end panel 15 and at 17 to the side tab 18 which is adhesively secured to the panel 13 to form a rectangular carton.
  • a dust flap 19 on the scored hinge line 20 To the panel 13 there is secured a dust flap 19 on the scored hinge line 20.
  • the opposed dust flap 21 is hinged to the panel 15 on the score line 22.
  • a flap 24 To the wall 10 there is hinged on line 23 a flap 24 which comprises the lower one of a pair of interengageable closure flaps, this flap 24 being formed medially with a slit or tuck tab slot 25 adapted to receive the tuck tab or tongue 26 formed on the uppermost interengageable closure fiap 27 which is hinged to the wall 11 on the score line 28.
  • the slot 25 for receiving the tuck tab 26 may actually be formed of interrupted slits, perforations or incisions which can readily be severed so as to form a depressible tab aided by continuation of the slot at the inturned lines of incision 29, 29.
  • the tongue 26 is partially preformed and extends from the longitudinal edge 30 or edge which is parallel to the hinge line 28.
  • the blanks are successively cut, scored and sealed in a series so that the tongue 26 projecting from one carton is cut from a bottom flap of an adjacent carton as for example indicated by FIG. 1 wherein a top closure flap 27 having an integral tongue 26 is severed and cut from the bottom closure panel or flap 31 for economy of materials and for aid in provision of relatively long tongues for securing enhanced reclosability.
  • the bottom of the carton shown in FIG. 1 in addition to comprising the flap 31 comprises dust flaps 32 and 33 which are closed down first, the flap 34 secured thereover, following which the flap 31 is last secured by adhesive means to form a firm bottom closure.
  • the portion cut out from the flaps 31 by the tongue 26' has no detrimental effect on the security of the bottom closure.
  • the flap 24 is first sealed down over the dust flaps 20 and 21 and then the flap 27 is sealed thereover, sealing of the flap 27 being in controlled spaced areas so that the tongue 26 may be grasped and lifted causing successive rupture on the elongated slit lines 35, 36 and shorter lines 37, leaving the strips 38, 38 sealed down by dots of adhesive as at 39, or in the manner illustrated in FIGS. 8 to 10 as will be hereinafter described. It will also be understood that the extent of the slits 35 and 36 and the bridges remaining between them will to some extent be dependent upon the thickness and nature of the paperboard of which the entire blank is formed. This action also causes defining the complete tongue 26.
  • the carton may be reclosed by inserting the new complete tongue 26 within the slot 25 of the adjacent lower flap 24 to provide a firm reclosure as indicated in FIG. 5.
  • opening of the carton may be facilitated by inserting a pair of fingers 40 under the tongue 26 and spreading them apart laterally. This aids in rupturing the slits 35, 36 and 37 in progressive manner and forms a clean separation of the opposed substantially triangularly shaped portions 38 from the remainder of the top flap 27.
  • the inclined slits 35 which define the root of the tongue 26 are critical and extend from the outer edge of flap 27 where it meets the tongue to lateral slits 36, except that at these two points a small amount of bridge material remains, which material can readily be ruptured when the tongue 26 is manually elevated. Thereafter, it is just necessary to slide the fingers sideways and the main portion of flap 26 commences to separate from the sealed-down strips 38, 38.
  • these dust flaps 19 and 21 and flap 24 are provided with inked or lacquered hold-out area portions 43, 44 and 45.
  • the printed or lacquered area 45 is particularly critical in that when a roller of adhesive is applied over an end portion of the flap 24, while adhesive will adhere to areas 46 and 47, no adhesive will adhere to the area 45 enclosed by the diagonal lines including the area at the tongue 26.
  • FIG. 11 The modified form of construction of FIG. 11 is similar to that of the previously described forms .except that in this instance the tongue 26 is replaced by the tongue 48 which is fully formed and the sides thereof are inclined substantially in a continuation of the opposed pairs of score lines 49, 49. These score lines 49, 49 terminate adjacent the root of tongue 48 in relatively elongated slits 50, 50 facilitating initial tear when the tongue 48 is elevated for opening and which may be aided by the insertion of fingers as shown in FIG. 4.
  • the sealing may be as shown at 39 in FIG. 2, or as shown with respect to FIGS. 8 to 10, and reclosed in the manner previously described with respect to the forms of FIGS. 1 to 10.
  • the top flap 27 may be imprinted with the words Press Press adjacent the root of the tongue 48. By pressing these areas opening of the slit or score lines 49, 49 can be facilitated.
  • similar legends may be disposed adjacent the root of the tongue 26 of the flap 27 and the separation of the flap 27 on its score or slit lines 35, 36 and 37 from the slitted down triangular portions 38, 38 readily accomplished.
  • a rectangular paperboard carton comprising sidewalls and top flaps hinged thereto, said top flaps comprising an opposed pair of dust flaps and an opposed pair of interengageable closure flaps in but partial overlying relationship to each other and sequentially folded and secured over said dust flaps, the lowermost one of said closure flaps being medially formed with a slot parallel to its hinge line and adapted to receive a tongue from the uppermost one of said closure flaps, the uppermost flap being formed with a tapered tongue partially projecting from itsforward outer edge and having a root portion defined in part by inclined slits formed in said uppermost flap, said uppermost flap being further formed with opposed oblique slit and perforation lines extending from said tongue root slit portion toward the side edges of said uppermost flap, the dust flaps being spaced from each other and said slot, said uppermost flap being adhesively secured to said lowermost flap only in the substantially triangular areas defined between its said lines of slit and its said forward edge.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
US726324A 1968-05-03 1968-05-03 Reclosable carton Expired - Lifetime US3549082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72632468A 1968-05-03 1968-05-03

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US3549082A true US3549082A (en) 1970-12-22

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US726324A Expired - Lifetime US3549082A (en) 1968-05-03 1968-05-03 Reclosable carton

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GB (1) GB1239668A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865322A (en) * 1973-05-17 1975-02-11 Hoerner Waldorf Corp Reclosable carton
US3899126A (en) * 1974-01-23 1975-08-12 Vibixa Ltd Cartons and blanks for forming cartons
US4201292A (en) * 1979-01-12 1980-05-06 Robertson Paper Box Co., Inc. Dispenser carton
US4314642A (en) * 1980-08-13 1982-02-09 Somerville Belkin Industries Limited Cardboard container with reclosable top closure
US4718557A (en) * 1987-04-03 1988-01-12 Ivy Hill Corporation Easy opening, reclosable carton
US4838430A (en) * 1987-01-16 1989-06-13 The Mead Corporation Side loading carton
US5123589A (en) * 1991-04-03 1992-06-23 Waldorf Corporation Reusable rigid film pack
US20040176232A1 (en) * 2003-03-06 2004-09-09 The C.W. Zumbiel Co. Consumer product package and method of manufacture
US20060255106A1 (en) * 2005-05-12 2006-11-16 Graphic Packaging International, Inc. Variable volume carton
US20100288825A1 (en) * 2007-10-02 2010-11-18 Nestec S.A. Packaging for bar-like foodstuffs
CN103826975A (zh) * 2011-09-28 2014-05-28 米德韦斯瓦科公司 坯体、套筒以及包装系统
WO2015175805A1 (en) * 2014-05-16 2015-11-19 General Mills, Inc. End load carton with closure system
USD744829S1 (en) 2014-05-16 2015-12-08 General Mill, Inc. End load carton with closure system
JP2017132524A (ja) * 2016-01-29 2017-08-03 シグマ紙業株式会社 包装容器

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
FR2884811B1 (fr) * 2005-04-26 2008-12-26 Novovis Sa Boite en carton pour le conditionnement de bande armee

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865322A (en) * 1973-05-17 1975-02-11 Hoerner Waldorf Corp Reclosable carton
US3899126A (en) * 1974-01-23 1975-08-12 Vibixa Ltd Cartons and blanks for forming cartons
US4201292A (en) * 1979-01-12 1980-05-06 Robertson Paper Box Co., Inc. Dispenser carton
US4314642A (en) * 1980-08-13 1982-02-09 Somerville Belkin Industries Limited Cardboard container with reclosable top closure
US4838430A (en) * 1987-01-16 1989-06-13 The Mead Corporation Side loading carton
US4718557A (en) * 1987-04-03 1988-01-12 Ivy Hill Corporation Easy opening, reclosable carton
US5123589A (en) * 1991-04-03 1992-06-23 Waldorf Corporation Reusable rigid film pack
US20040176232A1 (en) * 2003-03-06 2004-09-09 The C.W. Zumbiel Co. Consumer product package and method of manufacture
US6916765B2 (en) 2003-03-06 2005-07-12 The C. W. Zumbiel Co. Consumer product package and method of manufacture
US20050215406A1 (en) * 2003-03-06 2005-09-29 The C.W. Zumbiel Company Consumer product package and method of manufacture
US20060255106A1 (en) * 2005-05-12 2006-11-16 Graphic Packaging International, Inc. Variable volume carton
US20100288825A1 (en) * 2007-10-02 2010-11-18 Nestec S.A. Packaging for bar-like foodstuffs
US8469259B2 (en) * 2007-10-02 2013-06-25 Nestec S.A. Packaging for bar-like foodstuffs
CN103826975A (zh) * 2011-09-28 2014-05-28 米德韦斯瓦科公司 坯体、套筒以及包装系统
US20140346219A1 (en) * 2011-09-28 2014-11-27 Meadwestvaco Corporation Blank, sleeve and packaging system
US9828132B2 (en) * 2011-09-28 2017-11-28 Westrock Mwv, Llc Blank, sleeve and packaging system
WO2015175805A1 (en) * 2014-05-16 2015-11-19 General Mills, Inc. End load carton with closure system
USD744829S1 (en) 2014-05-16 2015-12-08 General Mill, Inc. End load carton with closure system
US9573719B2 (en) 2014-05-16 2017-02-21 General Mills, Inc. End load carton with closure system
AU2015259092B2 (en) * 2014-05-16 2018-02-22 General Mills, Inc. End load carton with closure system
RU2696781C2 (ru) * 2014-05-16 2019-08-06 Дженерал Миллс, Инк. Картонная тара концевой загрузки с системой закрытия
JP2017132524A (ja) * 2016-01-29 2017-08-03 シグマ紙業株式会社 包装容器

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Publication number Publication date
GB1239668A (de) 1971-07-21

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