EP0484311A1 - Boîte à ouverture facile refermable - Google Patents

Boîte à ouverture facile refermable Download PDF

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Publication number
EP0484311A1
EP0484311A1 EP91870165A EP91870165A EP0484311A1 EP 0484311 A1 EP0484311 A1 EP 0484311A1 EP 91870165 A EP91870165 A EP 91870165A EP 91870165 A EP91870165 A EP 91870165A EP 0484311 A1 EP0484311 A1 EP 0484311A1
Authority
EP
European Patent Office
Prior art keywords
flap
flaps
longitudinal
overlapping
transverse
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.)
Granted
Application number
EP91870165A
Other languages
German (de)
English (en)
Other versions
EP0484311B1 (fr
Inventor
Willy Verheyen
Katrien Carron
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.)
Bayer Agriculture BVBA
Original Assignee
Monsanto Europe NV SA
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 Monsanto Europe NV SA filed Critical Monsanto Europe NV SA
Priority to EP91870165A priority Critical patent/EP0484311B1/fr
Publication of EP0484311A1 publication Critical patent/EP0484311A1/fr
Application granted granted Critical
Publication of EP0484311B1 publication Critical patent/EP0484311B1/fr
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
    • 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
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/46—Handles
    • B65D5/46072—Handles integral with the container
    • B65D5/4608—Handgrip holes

Definitions

  • the present invention relates to a box which is easy to open, and reclosable, particularly to a box made of a sheet material, useful as a container.
  • Liquid products are generally contained in plastic bottles or containers when delivered to customers. Such bottles or containers may present suitable design but are generally difficult to store and stack. Moreover, there is a need to store such bottles or containers in an outer box and/or to combine more than one bottle or container in a single box which protects the content against undesirable external influences, e.g. direct sunlight, dust; and damages especially caused by shocks, falls, etc. .. and which further allows easier handhling of several bottles or containers together and facilitates storage and stacking.
  • undesirable external influences e.g. direct sunlight, dust; and damages especially caused by shocks, falls, etc. .. and which further allows easier handhling of several bottles or containers together and facilitates storage and stacking.
  • the "American style box” for instance, is quite often used for the above purposes.
  • This type of box generally made of cardboard, comprises four lateral faces, each bearing an upper flap and a lower flap having a width substantially of the same dimension as the width of the corresponding face.
  • At least two opposite flaps generally the flaps bound to the longitudinal faces, present a height of substantially half the width of the adjacent face in order to form a closed bottom face or cover face of the box when folded adequately along a folding line between the lateral face and the corresponding flap.
  • the box may be kept closed by an adhesive tape binding together two opposite longitudinal flaps, by gluing together two superimposed flaps or by stapling together two superimposed and/or opposite longitudinal flaps.
  • the above known boxes are generally not customer-friendly or environmentally friendly.
  • customers have to open the box respectively, by tearing off the adhesive tape, by using a cutting tool, for instance a knife, in order to cut the adhesive tape or means, e.g. a screwdriver, to remove the staples.
  • a cutting tool for instance a knife
  • opening a box with glued flaps generally results in tearing up the box which can thus no more be reclosed which is often wanted for further storage of the contents remaining after first partial use, since the glued assembly has to be strong and resistant, particularly in the case of heavy contents.
  • boxes more particularly cardboard boxes, intended for the packaging of apparatus or devices of different kinds, comprising two opposite lateral longitudinal faces and two opposite lateral transverse faces binding both longitudinal faces, the transverse faces bearing each a transverse bottom flap and a transverse cover flap the width of which substantially corresponds to the width of the corresponding transverse face, the longitudinal faces bearing each a longitudinal bottom flap and a longitudinal cover flap the width of which substantially corresponds to the width of the corresponding longitudinal face, at least two opposite cover flaps having a height arranged to overlap when the box is closed.
  • the overlapping flaps are generally glued together and/or held together by staples and/or an adhesive tape and/or by a tongue extending from the outer edge of the upper cover flap and arranged for entering into a slit made in a folding line between the opposite underlying cover flap and the corresponding longitudinal face.
  • US-A-3 368 739 discloses a device for opening and reclosing a carton. It has a tab in an upper reclosure section of an overlying panel that is inserted through an aperture in an underlying panel.
  • GB-B-1 346 110 discloses cartons and blanks for forming cartons.
  • the upper of a pair of end flaps is formed with a pair of spaced lines of weakness whereby, to open the carton, a user may effect a separation operation along said lines of weakness.
  • the separation operation provides a tab for engagement in a slot in the lower of said pair of end flaps for effecting reclosing.
  • the lines of weakness are said to be inclined throughout their lengths to the line of juncture between the end flaps and the corresponding side wall, and to include portions which extend parallel to the line of juncture. The reclosing still requires introducing a tab in a slot.
  • the aim of the present invention is to provide a box which is easy to open and reclosable after use, which may be used according to the above, but which does not present the disadvantages of the current boxes.
  • Another aim of the invention is to provide a box which is easy to open and reclosable after use, but which does not require a tab for reclosure.
  • a further aim of the invention is to provide a box which is easy to open without requiring a special tool and without causing problems to the user.
  • Another aim of the invention is to provide a box which is reusable after first opening, since it is not damaged in any way which would inhibit or exclude further use.
  • a further aim of the invention is to provide a box which ensures a maximum of protection against dust or other undesirable external influences, even after a first opening.
  • the present invention provides such a box, responding to the needs and aims mentioned hereinbefore, which is easy to open and reclosable.
  • This box is referred to as "reclosable easy-opening box”.
  • the reclosable easy-opening box comprises two opposite longitudinal lateral faces and two opposite transverse lateral faces binding both said longitudinal faces, the transverse faces each bearing via a folding line a transverse bottom flap and a transverse cover flap, the width of which substantially corresponds to the width of the corresponding transverse face, the longitudinal faces bearing each via a folding line a longitudinal bottom flap and a longitudinal cover flap the width of which substantially corresponds to the width of the corresponding longitudinal face, at least one cover flap, called overlapping flap, being designed to overlap at least another flap when the box is closed;
  • the box according to the invention is characterized in that at least the overlapping flap or flaps is/are equipped with at least one partially precut line, that is interrupted by a section of partially precut lines directed according to a direction crossing it, at least the area of the overlapping flap or flaps defined by the said partially precut line and the side edges being assembled with underlying flap(s) under prestress.
  • the box according to the present invention is particularly convenient since the user may easily open and disclose the contents by opening the upper overlapping flap by tearing up the partially precut line.
  • Another advantage of the box according to the invention is that it is reclosable after having torn along the precut lines. Since the flap or flaps are assembled under prestress, the torn up part is maintained in closed position by a force acting on it by pressing it edgewise against the corresponding remaining part.
  • At least two opposite cover flaps have a height such that they overlap when the box is closed and at least the overlapping flap, more particularly a longitudinal flap, has a height substantially corresponding to the width of the adjacent lateral face.
  • the cover flaps may be arranged according to the "American style" thus forming two overlapping flaps.
  • each overlapping flap is provided with two partially precut lines parallel to two opposite diagonal directions, defining two triangular areas, preferably arranged at the opposite side to the folding line.
  • Each overlapping flap may be assembled under prestress to the underlying flap or flaps through areas as defined by the partially precut line(s) and the side edges of the corresponding flap or through essentially the whole surface of the said overlapping flap.
  • the overlapping is assembled under prestress to the underlying flap(s) through essentially the total surface of said overlapping flaps
  • the underlying flap(s) may also be provided with partially precut lines essentially in register with the corresponding precut lines of the flap(s).
  • the "reclosable easy opening box” is preferably made of a relatively thick sheet material, like a corrugated fibreboard.
  • the thickness of the sheet material along with the stiffness of that material understandably further improves the reclosability of the box, since it allows the application of a reasonable stress acting on the different parts of the closing flaps and thus assures that the opposite parts remain in contact and allow reclosing of the box.
  • the area of the outer overlapping flap defined by the said outer overlapping flap and the corresponding lateral face is provided with a handgrip known per se. Said handgrip facilitates the tearing of the partially precut lines.
  • the handgrip is then arranged between both triangular areas, preferably close to the outer zone, opposite the folding line.
  • This arrangement keeps to a minimum the power to be provided by the user in order to open the box by tearing up the precut line and ensures the best assembly strength of the closed box before the partially precut line is torn up.
  • the handgrip consists in an aperture or adequate area defined by a partially precut line, to be pushed in by the user. This last embodiment ensures a suitable protection against dust or other undesirable external influences since all box walls remain closed.
  • the box of the invention preferably comprises the above disclosed easy-opening system on the upper side face of the box. Further, the different flaps are preferably arranged such that the said overlapping flaps are two opposite flaps, most particularly two longitudinal flaps.
  • the underlying flap may also be provided with a handgrip allowing the introduction of the user's hand.
  • Said handgrip may also correspond to a known per se embodiment as described above. The user may thus develop a greater force when pulling the overlapping flap in order to tear along the precut line(s). This feature also permits easy handling when carrying the box.
  • Figure 1 shows an unfolded sheet material, for instance double corrugated fibreboard, arranged in order to form a box 1 when suitably folded and assembled.
  • transverse lateral face 9 bears a lip 11 to be assembled, preferably stapled, taped or glued, with the adjacent longitudinal lateral face 3.
  • a lip 11 fitted to the lateral face 9 an analogous lip could also be provided on lateral face 3 for assembly with face 9.
  • a lip 11 extending only on a portion of the height of the lateral face may also be used. Faces 3, 7, 5, 9 and lip 11 are separated by folding lines 4, 8, 6, 10.
  • Each transverse lateral face 7, 9 bears a bottom flap 27 and 29 respectively, and a cover flap 47, 49 respectively.
  • the flaps 27, 29, 47, 49 are separated from the lateral transverse faces by folding lines 28, 30, 48 and 50 respectively.
  • the width of the transverse flaps 27, 47, 29, 49 corresponds substantially to the width of the transverse lateral faces.
  • the longitudinal lateral faces 3, 5 bear longitudinal bottom flaps 23 and 25 respectively, separated from the lateral face by a folding line referred to as 24 and 26, respectively.
  • the bottom flaps are arranged to form an "American style" bottom, known per se, when the box is formed.
  • the height of the transverse bottom flaps corresponds to a portion of the width of the adjacent longitudinal face as well as to the height of the longitudinal bottom flaps, which corresponds substantially to half the width of the transverse face.
  • bottom system which offers at least the same strength, defined in view of the contents of the formed box.
  • Both longitudinal lateral faces also bear longitudinal cover flaps 43 and 45, respectively, separated from the lateral faces by a folding line 44 and 46, respectively.
  • transverse cover flaps have about the same size as the transverse bottom flaps.
  • the longitudinal cover flaps 43 and 45 present a width corresponding to the width of the longitudinal lateral face and a height corresponding substantially to the width of the adjacent transverse lateral face.
  • the upper longitudinal cover flap 43 intended to be on the top when the box is closed is provided with two partially precut lines 41 and 42 substantially parallel to two opposite or symmetric diagonal directions, defining two triangular areas 41′ and 42′, with the outer edges of the flap, opposite to the folding line 44.
  • Said triangular areas are suitably assembled to the underlying flap, preferably the other longitudinal cover flap 45, by means known per se, preferably a glue, more particularly a hot melt glue.
  • the partially precut line is interrupted by a substantially sinusoidal section.
  • the overlapping flap has to be assembled to the underlying flaps under stress. Stress may be obtained by a force acting within the plane of the flaps in the direction leading away from or to the folding line 44 or 46, during assembling operation. The prestress thus acts in opposite direction pushing the interconnected parts edgewise, one against the other, thus keeping the box closed when the flaps are again brought in contact with each other at reclosing after opening the box. This, of course requires corresponding thickness and stiffness of the cardboard material.
  • a handgrip 51 is foreseen in the upper cover flap.
  • said handgrip is in the form of an aperture made in the said flap 43 or of a delimited area to be pushed out by the user, a second aperture 52 is advantageously also provided, in register with the first one, in the underlying overlapping flap 45. Aperture 52 may also be pushed out.
  • the handgrip is provided between the triangular areas in order to facilitate the opening of the box.
  • both transverse flaps 47 and 49 are folded first; then flap 45 is folded and afterwards upper cover flap 43, glue being applied in order to have the upper longitudinal flap glued to the underlying flap only via the triangular area 41′ and 42′ defined by the precut line 41, 42 and the outer edge of the flap.
  • Reclosing is obtained by pushing the top cover back into place; the shape of the precut lines and the force resulting from the prestress will then keep said cover in place.
  • the box may also be equipped with lateral handgrips, 2, 2′ performed in the lateral transverse faces, to facilitate the carrying of heavy boxes.
  • the upper flap system is of the "American type".
  • Both longitudinal cover flaps 43 and 45 designed to be the overlapping flaps at the top of the box, each are provided with partially precut lines 61, 62 and 71, 72 as already previously defined. Said lines define triangular areas 61′ and 62′ on flap 43 and 71′ and 72′ on flap 45.
  • Handgrips 65 and 75 may of course be provided on the longitudinal flaps, like precut handgrips.
  • both longitudinal corner flaps (overlapping flaps) 43 and 45 may be assembled under stress to the underlying transverse flaps by gluing or stapling or other methods known per se, through the areas 61′, 62′ and 71′, 72′ only or through essentially the total flap surface.
  • transverse underlying flaps may also be equiped with precut lines 64, 74, 66, 76 essentially in register with precut lines 61, 62, 71, 72.
  • the precut lines are advantageously designed as previously discussed, thus allowing an easy reclosing and reopening after first use.
  • the box is easy to open without requiring a special tool. Moreover cumbersome synthetic adhesive tapes or staples which can harm the user are no longer necessary.
  • the arrangement of the different flaps also provides for strength of the base and cover faces allowing easy storage and stacking and protection against impacts and other outer influences.
  • the box may be reclosed, once opened.
  • the easy-opening box according to the invention may be made of a sheet material like cardboard and corrugated fibreboard single wall or double wall corrugated possibly reinforced by mineral or synthetic fibres, plastic materials or similar materials suitable for making boxes and known per se in the art.
  • the box according to the invention may be used to contain several plastic bottles or containers filled with liquid or dry materials. It may also be used for one or more bags containing for instance powdered materials or for dry materials in any form or it may contain other boxes or cartons.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Packages (AREA)
EP91870165A 1990-10-29 1991-10-21 Boîte à ouverture facile refermable Expired - Lifetime EP0484311B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP91870165A EP0484311B1 (fr) 1990-10-29 1991-10-21 Boîte à ouverture facile refermable

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP90870203A EP0483444A1 (fr) 1990-10-29 1990-10-29 Boîte à ouverture facile
EP90870203 1990-10-29
EP91870165A EP0484311B1 (fr) 1990-10-29 1991-10-21 Boîte à ouverture facile refermable

Publications (2)

Publication Number Publication Date
EP0484311A1 true EP0484311A1 (fr) 1992-05-06
EP0484311B1 EP0484311B1 (fr) 1995-01-04

Family

ID=8206090

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90870203A Withdrawn EP0483444A1 (fr) 1990-10-29 1990-10-29 Boîte à ouverture facile
EP91870165A Expired - Lifetime EP0484311B1 (fr) 1990-10-29 1991-10-21 Boîte à ouverture facile refermable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90870203A Withdrawn EP0483444A1 (fr) 1990-10-29 1990-10-29 Boîte à ouverture facile

Country Status (6)

Country Link
EP (2) EP0483444A1 (fr)
AT (1) ATE116614T1 (fr)
DE (1) DE69106482T2 (fr)
DK (1) DK0484311T3 (fr)
IE (1) IE913744A1 (fr)
PT (1) PT8856T (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015131651A (ja) * 2014-01-10 2015-07-23 中央紙器工業株式会社 段ボールケース

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399701B (de) * 1992-07-03 1995-07-25 Neupack Gmbh Faltschachtelverschluss
AP1152A (en) * 1997-12-23 2003-03-20 Fleurfontein Mountain Estates Pty Limited Box.
US6378733B1 (en) 1998-12-23 2002-04-30 Fleurfontein Mountain Estates (Proprietary) Limited Box
GB2418419A (en) * 2004-09-24 2006-03-29 Sca Packaging Ltd Containers having removable closure members
ITVR20110039A1 (it) * 2011-02-25 2012-08-26 S Eco Servizi Ecologici Srl Contenitore per la raccolta di documenti e procedimento per lo smaltimento in sicurezza
ES2523022B2 (es) * 2014-07-08 2015-02-24 Tecnografica Y Maquinaria, S.A. Envase con abertura desplegable

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368739A (en) * 1967-03-10 1968-02-13 Weyerhaeuser Co Reclosable carton
GB1346110A (en) * 1971-11-18 1974-02-06 Vibixa Ltd Cartons and blanks for forming cartons
FR2267943A1 (en) * 1974-04-22 1975-11-14 Bericol National Cardboard case with liquid sealing lining - has handling openings in overlapping closing flaps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368739A (en) * 1967-03-10 1968-02-13 Weyerhaeuser Co Reclosable carton
GB1346110A (en) * 1971-11-18 1974-02-06 Vibixa Ltd Cartons and blanks for forming cartons
FR2267943A1 (en) * 1974-04-22 1975-11-14 Bericol National Cardboard case with liquid sealing lining - has handling openings in overlapping closing flaps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015131651A (ja) * 2014-01-10 2015-07-23 中央紙器工業株式会社 段ボールケース

Also Published As

Publication number Publication date
EP0483444A1 (fr) 1992-05-06
DK0484311T3 (da) 1995-04-03
ATE116614T1 (de) 1995-01-15
PT8856T (pt) 1994-01-31
IE913744A1 (en) 1992-05-22
EP0484311B1 (fr) 1995-01-04
DE69106482D1 (de) 1995-02-16
DE69106482T2 (de) 1995-07-06

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