EP1447335B1 - Tamper-evident closure system for a container - Google Patents

Tamper-evident closure system for a container Download PDF

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Publication number
EP1447335B1
EP1447335B1 EP04290180A EP04290180A EP1447335B1 EP 1447335 B1 EP1447335 B1 EP 1447335B1 EP 04290180 A EP04290180 A EP 04290180A EP 04290180 A EP04290180 A EP 04290180A EP 1447335 B1 EP1447335 B1 EP 1447335B1
Authority
EP
European Patent Office
Prior art keywords
panel
folding line
tab
case
closing
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
EP04290180A
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German (de)
French (fr)
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EP1447335A1 (en
Inventor
Yann Flamand
Yannick Tourniol
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.)
Packart SAS
Original Assignee
Packart SAS
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Filing date
Publication date
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Publication of EP1447335A1 publication Critical patent/EP1447335A1/en
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Publication of EP1447335B1 publication Critical patent/EP1447335B1/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
    • B65D5/02—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
    • B65D5/0254—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 flaps and securing them by means of a tongue integral with one of the 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
    • B65D2401/00—Tamper-indicating means

Definitions

  • the invention relates to a case made by folding a sheet of flexible material such as paper, cardboard, plastic (PET, PVC, PP) and the like for which any attempt to open causes a deterioration of the case.
  • the invention relates in particular to a case comprising a closure lug provided with a re-entrant lug in double deformable thickness.
  • the invention also relates to a blank intended for producing such a case.
  • the opening / closing panel has at its end, opposite to the first fold line, a re-entrant tab foldable at right angles to the opening / closing panel along a second fold line substantially parallel to the first fold line .
  • the closure tab is foldable on an opening having two opposite edges each carrying a side tab.
  • the re-entrant tab is formed of two panels hinged to each other along a fold line and fixed rigidly so that the re-entrant tab comprises an over-thickness.
  • This over-thickness forms a recess intended to engage with protuberances of the lateral legs.
  • This hooking system allows a maintenance of the closing tab in the closed position at rest.
  • the case can be opened and closed at will.
  • an additional room can be used.
  • the tamper device does not require the addition of additional elements.
  • the object of the present invention is to provide a case for packaging products for which any opening of the closure tab causes irreversible damage to the case.
  • the over-thickness panel comprises a central zone fixed rigidly to the contact panel and two lateral zones located on either side of the central zone, each lateral zone being articulated to the central zone along a fourth fold line forming a hinge. so that in the closed position of the closing tab, each side tab is located between the closure tab and a side zone.
  • the fourth lines located around a central bonding point allow a deformation of the order of a few millimeters, fan, side areas.
  • the second fold line can be precut.
  • Each fold line between a side tab and a side panel may be pre-cut over all or part of their length on the side adjacent to the front panel.
  • the second fold line may be slightly curvilinear, the line being curved towards the first fold line.
  • the second fold line may be substantially rectilinear, the line having two rectilinear recesses oriented opposite the first fold line.
  • the recesses come into contact with the protuberance of the lateral lugs used to lock the points of the day.
  • the contact panel and the over-thickness panel may have identical substantially trapezoidal shapes, the second fold line forming the large base of the trapezium.
  • the non-parallel sides of the contact panel and over-thickness panel may be rounded.
  • Each fourth fold line forming a hinge between the central zone and one of the lateral zones may be oblique.
  • At least one lateral zone may further comprise a fifth additional fold line parallel to the fourth fold line forming a hinge between the central zone and the lateral zone.
  • Each fold line between a side tab and a side panel may also be slightly shifted inwardly of the side panel relative to the first fold line.
  • the invention also relates to a blank for the realization of a case.
  • the over-thickness panel comprises a central zone and two lateral zones, the central zone extending along at least part of the fold line between the contact panel and the over-thickness panel, each lateral zone. being separated from the central zone by a fourth fold line forming a hinge
  • the contact panel and the over-thickness panel intended to jointly form the re-entrant lug, are folded over one another and secured to at least a portion of the central zone, the lateral zones remaining free from the panel of contact.
  • the inner face of the blank 1 defines the face of the blank 1 which will be inside the case 2, when the blank 1 will be placed in volume, the cavity of the case 2 then being obstructed.
  • the blank 1 comprises a portion 2 'intended to form the body 4 of the case 2 and a portion 2' intended to form the closing tab 3 of the case 2 and said lateral tabs 5, 5 '.
  • Part 2 comprises a front panel 6, a rear panel 7 and side panels 8 and 8'.
  • the blank 1 comprises an axis of symmetry intersecting the panels 6, 7, 8, 8 'in two.
  • only one side of the blank 1 is described, the other side being able to be obtained by symmetry, the variant embodiments described later being able to relate to one and / or the other of the sides.
  • the side panel 8, adjacent to the rear panel 7 and the front panel 6, is articulated with respect to these panels by means of folding lines 9, 10.
  • the side panel 8 ' adjacent to the front panel 6, is articulated with respect to the latter by means of a fold line 10'.
  • the fold line 10 ' is opposite and substantially parallel to the right edge 9' of the side panel 8 '.
  • a gluing lug 11, adjacent to the rear panel 7, is articulated with respect to the latter by means of a fold line 12.
  • the fold lines 10 ', 10, 9, 12 and the right edge 9' are substantially parallel.
  • Part 2 “comprises an opening / closing panel 13, intended to seal the opening of the case 2 formed by setting the volume of the blank 1, a contact panel 14 and an over-thickness panel 15 intended for The panel 14 is intended to come into contact, once the blank 1 has been placed in volume and in the closed state, with the inside of the front panel 6.
  • the opening / closing panel 13 is adjacent to the rear panel 7 of the blank 1 and is connected to the latter by means of a first fold line 17.
  • the panel 14 hinged to the panel 13 via a second fold line 18.
  • the second fold line 18 is precut, cut and uncut segments alternating substantially evenly along the line 18.
  • the second line 18 is slightly curved towards the line 17.
  • the second line 18 is rectilinear over most of its length. However, it has at its two ends two recesses D1, D2 towards the contact panel 14.
  • the panel 15 is adjacent to the panel 14 and is connected to the latter by means of a third fold line 19.
  • the panels 14, 15 are substantially symmetrical with respect to the third folding line 19 common.
  • the second fold line 18 forms one side of the panel 14.
  • the panel 15 has a straight edge 20 opposite to the third fold line 19.
  • the fold lines 18, 19 as well as the straight edge 20 are substantially parallel.
  • the panel 15 further comprises two sets of two fold lines 30, 31, 30 ', 31'.
  • the lines 30, 31 are substantially parallel.
  • the lines 30 ', 31' are also substantially parallel.
  • the lines 30, 31, 30 ', 31' are oblique with respect to the edge 20 and the third fold line 19.
  • the line 30 extends rectilinearly between the junction of the curved edges 21, 22 to the first third of the edge 20, the first third being taken from the edge 22.
  • the indication relating to the first third of the edge 20 is given in relation to the embodiment shown in the figures. In other embodiments not shown, the lines 30, 30 'can be placed differently.
  • the lines 31, 31 ' are substantially parallel to the lines 30, 30' respectively. They extend between the middle of the edges 22, 22 'and the right edge 20.
  • the lines 31, 31 ' may be different in their positioning relative to the lines 30, 30', especially in terms of parallelism.
  • each series of lines may comprise more than two lines or a single line.
  • the panel 15 is divided into three distinct zones: a central zone 32 between the lines 30, 30 'and two lateral zones 33, 33' respectively between the line 30 and the edge 22 and between the line 30 'and the edge 22'.
  • the blank 1 also has side tabs 5, 5 'respectively adjacent to the side panels 8, 8'.
  • the tab 5 ' is the image of the tab 5.
  • the lateral tab 5 articulates with the side panel 8 via the fold line 23.
  • the lateral tab 5 ' articulates with the side panel 8' via the fold line 23 '.
  • the fold lines 23, 23 ' are aligned and inwardly offset from the side panels 8, 8' with respect to the line 17.
  • the fold lines 23, 23 ' are partly precut.
  • the pre-cutting extends for the line 23 between the junction with the fold line 10 and about the middle of the line 23.
  • the line 23 ' is pre-cut between the junction with the line 10' and about the middle of the line 23.
  • the pre-cutting may extend over a different length, between an absence of pre-cutting and a line 23, 23 'completely pre-cut.
  • the region of the leg 5 adjacent the fold line 23 is called the base of the leg 5.
  • the region of the leg 5 'adjacent the fold line 23' is called the base of the leg 5 '.
  • the region of the tab 5 diametrically opposed to the base of the tab 5 is called the top of the tab 5.
  • the region of the tab 5 'diametrically opposite the base of the tab 5' is called the top of the tab 5 ' .
  • the tabs 5 and 5 ' may comprise at their base a protuberance respectively 24, 24' having a straight edge respectively 24a, 24'a and a protuberance respectively 25, 25 '.
  • the lug 5 may comprise at its top a protuberance may have the shape of a lug 26 having a straight edge 26a.
  • the lug 5 ' may have at its top a protrusion which may have the shape of a lug 26' having a straight edge 26'a.
  • edges 26a, 26'a, 24a, 24'a may be substantially parallel to the fold lines 10, 10 'of the blank 1.
  • FIGS. 1 and 2 lie in the state of advancement of the formation of the re-entrant lug 16.
  • the re-entrant tab 16 is in its initial form just after cutting the blank 1 in a sheet of paper, cardboard, plastic (PET, PVC, PP) or the like.
  • the re-entrant lug 16 is in its final form, obtained after being folded by 180 °, in the direction indicated by the arrow A of FIG. 1, of the panel 15 on the panel 14 by hinge around the third line of folding 19 and after securing said panels to one another.
  • the re-entrant tab 16 will be described in more detail in the following description.
  • a case 2 has a body 4 and two closure tabs 3, at each end of said body, allowing the opening and closing of said case 2 and the lateral legs 5, 5 'folding.
  • the body 4 of the case 2 is defined by the portion 2 'of the blank 1 placed in volume.
  • the body 4 of the case is held in volume by securing the glue lug 11 with the side panel 8 '.
  • the front panel 6 of the case 2 is substantially parallel to the rear panel 7 of the case 2 and substantially perpendicular to the side panels 8, 8 '.
  • the closure lug 3 comprises an opening / closing panel 13 and a re-entrant lug 16.
  • the closing lug 3 is articulated to the body 4 of the case 2 via the first right hinge fold line 17.
  • the thickness of the re-entrant tab 16 is wholly or partly greater than the thickness of the opening / closing panel 13 of the closing tab 3.
  • the resulting over thickness produces a recess 20 extending along the fold line 18.
  • the re-entrant tab 16 of the case 2 has a straight edge 19 substantially parallel to the recess 20 and to the fold line 18.
  • the right edge 19 of the re-entrant tab 16 merges with the third fold line 19 of the blank 1 of FIG.
  • the right edge 19 is connected to the recess 20 by the two curved edges 22, 22 'and the fold line 18 by the two curved edges 21, 21'.
  • the panels 14, 15 are folded over one another.
  • the panels 14, 15 are secured through the fastening of the central zone 32 of the panel 15 and the corresponding zone on the panel 14 when the panel 15 is folded over the panel 14.
  • Each lateral zone 33, 33 'of the panel 15 and each corresponding zone of the panel 14 are not fixed rigidly to one another.
  • Closing the closure tab 3 means that it closes the cavity defined by the body 4 of the case 2.
  • Closing of the closure tab 3 may occur as described below.
  • the closing tab 3 comprising a re-entrant lug 16 folded at right angles to the opening / closing panel 13 along the second fold line 18, is articulated in rotation around the first folding line 17, forming a hinge, according to the direction indicated by the arrow B in Figure 3.
  • the re-entrant lug 16 is inserted into the case 2.
  • the introduction is made possible by the spaces E1, E1 'through which the lug 16 is introduced.
  • the spaces E1, E1 ' have a width equivalent to one to two times the thickness of the re-entrant lug 16. This width is adapted according to the format of the case and the type of material used.
  • a case 2 having one or two closure tabs 3 can be closed in this way.
  • Such a system ensures firstly an effective maintenance of the closing tab 3 in the closed position and the inviolability of the case 2.
  • An opening effort leads to a tear of one or the other of the pre-cutting, or even of all.
  • the product can not be opened without irreversibly damaging the case 2.
  • the closed and un-torn appearance of the case 2 thus gives the case 2 a guarantee of inviolability.
  • the lugs 26, 26 'thus allow a hooking of the tab helping to maintain the closure lug 3 in the closed position and increasing the resistance to the opening of the closure lug 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Description

L'invention concerne un étui réalisé par pliage d'une feuille en matière souple telle que papier, carton, plastique (PET, PVC, PP) et analogue pour lequel toute tentative d'ouverture entraîne une détérioration de l'étui. L'invention concerne notamment un étui comprenant une patte de fermeture pourvue d'une patte rentrante en double épaisseur déformable.The invention relates to a case made by folding a sheet of flexible material such as paper, cardboard, plastic (PET, PVC, PP) and the like for which any attempt to open causes a deterioration of the case. The invention relates in particular to a case comprising a closure lug provided with a re-entrant lug in double deformable thickness.

L'invention concerne également un flan destiné à la réalisation d'un tel étui.The invention also relates to a blank intended for producing such a case.

On connaît déjà des étuis comprenant une patte de fermeture pourvue d'une patte rentrante en double épaisseur.Cases are already known comprising a closure lug provided with a double thickness re-entrant lug.

Le document FR2 807 399 décrit un tel étui comprenant :

  • un corps comprenant un panneau avant, un panneau arrière et deux panneaux latéraux perpendiculaires aux panneaux avant et arrière,
  • une patte de fermeture à l'une des extrémités du corps, la patte de fermeture comportant un panneau d'ouverture/fermeture articulé au panneau arrière de l'étui suivant une première ligne de pliage formant charnière de la patte de fermeture.
The document FR2 807 399 describes such a case comprising:
  • a body comprising a front panel, a rear panel and two side panels perpendicular to the front and rear panels,
  • a closure tab at one end of the body, the closure tab having an opening / closing panel hinged to the rear panel of the holster along a first fold line forming a hinge of the closure tab.

Le panneau d'ouverture/fermeture comporte à son extrémité, opposée à la première ligne de pliage, une patte rentrante pliable à angle droit par rapport au panneau d'ouverture/fermeture selon une deuxième ligne de pliage sensiblement parallèle à la première ligne de pliage.The opening / closing panel has at its end, opposite to the first fold line, a re-entrant tab foldable at right angles to the opening / closing panel along a second fold line substantially parallel to the first fold line .

La patte de fermeture est rabattable sur une ouverture comportant deux bords opposés portant chacun une patte latérale.The closure tab is foldable on an opening having two opposite edges each carrying a side tab.

La patte rentrante est formée de deux panneaux articulés l'un par rapport à l'autre selon une ligne de pliage et fixés rigidement de sorte que la patte rentrante comprend une sur-épaisseur.The re-entrant tab is formed of two panels hinged to each other along a fold line and fixed rigidly so that the re-entrant tab comprises an over-thickness.

Cette sur-épaisseur forme un décrochement destiné à venir en prise avec des protubérances des pattes latérales.This over-thickness forms a recess intended to engage with protuberances of the lateral legs.

Ce système de crochetage permet un maintien de la patte de fermeture en position fermée au repos.This hooking system allows a maintenance of the closing tab in the closed position at rest.

Toutefois, l'étui peut être ouvert et fermé à volonté. On peut notamment accéder au produit emballé dans l'étui puis refermer la patte de fermeture.However, the case can be opened and closed at will. In particular, it is possible to access the packaged product in the case and then close the closure tab.

L'étui décrit dans le brevet FR 2 807 399 ne permet pas de garantir que personne n'a pu accéder au produit après son emballage dans l'étui.The case described in patent FR 2,807,399 does not guarantee that no one has been able to access the product after packaging in the case.

Or, il est courant que l'on souhaite avoir la preuve que l'étui n'a jamais été ouvert.However, it is common that one wishes to have the proof that the holster has never been opened.

C'est le cas pour un grand nombre de ces étuis proposés à la vente.This is the case for many of these cases offered for sale.

On doit alors prévoir sur l'étui un dispositif d'inviolabilité.We must then provide on the case a tamper device.

A cette fin, on peut avoir recours à une pièce supplémentaire. Il existe par exemple des étuis scellés à l'aide d'une pastille de plastique auto-collante ou un point de colle.For this purpose, an additional room can be used. For example, there are cases sealed with a self-adhesive plastic tablet or glue point.

Toutefois, afin de simplifier la fabrication, on peut souhaiter que le dispositif d'inviolabilité ne requiert pas l'ajout d'éléments supplémentaires.However, to simplify manufacture, it may be desirable that the tamper device does not require the addition of additional elements.

L'objet de la présente invention est de proposer un étui pour emballer des produits pour lequel toute ouverture de la patte de fermeture entraîne un endommagement irréversible de l'étui.The object of the present invention is to provide a case for packaging products for which any opening of the closure tab causes irreversible damage to the case.

A cet effet, l'invention propose un étui réalisé par pliage d'une feuille en matière souple telle que papier, carton, plastique (PET, PVC, PP) et analogue, comportant :

  • un corps comprenant un panneau avant, un panneau arrière et au moins deux panneaux latéraux, lesdits panneaux latéraux étant sensiblement perpendiculaires aux panneaux avant et arrière,
  • au moins une patte de fermeture à l'une des extrémités du corps, ladite patte de fermeture comportant un panneau d'ouverture/fermeture articulé au panneau arrière dudit étui suivant une première ligne de pliage formant charnière de la patte de fermeture, ledit panneau d'ouverture/fermeture comportant à son extrémité, opposée à la première ligne de pliage, une patte rentrante pliable à angle droit par rapport audit panneau d'ouverture/fermeture selon une deuxième ligne de pliage sensiblement parallèle à la première ligne de pliage,
la patte rentrante de la patte de fermeture comprenant un panneau de contact avec l'intérieur du panneau avant en position fermée de la patte de fermeture, et comprenant un panneau en sur-épaisseur du panneau de contact, lesdits panneau de contact et panneau en sur-épaisseur étant articulés l'un par rapport à l'autre selon une troisième ligne de pliage, la patte de fermeture étant rabattable sur une ouverture dudit étui, ouverture comportant deux bords opposés, sensiblement perpendiculaires à la première ligne de pliage, ces bords portant chacun une patte latérale repliée à angle droit par rapport à un panneau latéral de l'étui suivant une ligne de pliage.For this purpose, the invention proposes a case made by folding a sheet of flexible material such as paper, cardboard, plastic (PET, PVC, PP) and the like, comprising:
  • a body comprising a front panel, a rear panel and at least two side panels, said side panels being substantially perpendicular to the front and rear panels,
  • at least one closure tab at one end of the body, said closure tab having an opening / closing panel hinged to the rear panel of said case along a first fold line forming a hinge of the closure tab, said panel opening / closing having at its end, opposite to the first folding line, a reentrant tab foldable at right angles to said opening / closing panel along a second fold line substantially parallel to the first fold line,
the re-entrant tab of the closure tab comprising a contact panel with the inside of the front panel in the closed position of the closure tab, and comprising an over-thickness panel of the contact panel, said contact panel and panel on thickness being articulated relative to each other along a third fold line, the closing tab being foldable on an opening of said case, opening having two opposite edges, substantially perpendicular to the first fold line, these bearing edges; each has a side tab folded at right angles to a side panel of the case along a fold line.

Le panneau en sur-épaisseur comprend une zone centrale fixée rigidement au panneau de contact et deux zones latérales situées de part et d'autre de la zone centrale, chaque zone latérale étant articulée à la zone centrale selon une quatrième ligne de pliage formant charnière de sorte qu'en position fermée de la patte de fermeture, chaque patte latérale est située entre la patte de fermeture et une zone latérale.The over-thickness panel comprises a central zone fixed rigidly to the contact panel and two lateral zones located on either side of the central zone, each lateral zone being articulated to the central zone along a fourth fold line forming a hinge. so that in the closed position of the closing tab, each side tab is located between the closure tab and a side zone.

Ainsi les quatrièmes lignes situées autour d'un point de collage central permettent une déformation de l'ordre de quelques millimètres, en éventail, des zones latérales.Thus the fourth lines located around a central bonding point allow a deformation of the order of a few millimeters, fan, side areas.

La deuxième ligne de pliage peut être prédécoupée.The second fold line can be precut.

Chaque ligne de pliage entre une patte latérale et un panneau latéral peut être prédécoupée sur tout ou partie de leur longueur du côté adjacent au panneau avant.Each fold line between a side tab and a side panel may be pre-cut over all or part of their length on the side adjacent to the front panel.

Le fait que certaines lignes de pliage soient tout ou partie prédécoupées permet d'améliorer l'aspect esthétique de l'étui puisque les plis sont plus nets.The fact that some fold lines are all or part pre-cut improves the aesthetic appearance of the case since the folds are sharper.

De plus, l'étui est moins fragile que si les lignes de pliage étaient prédécoupées sur toute leur longueur. La patte de fermeture risquerait en effet de s'enfoncer complètement à l'effort et ainsi de ne pas assurer le verrouillage.In addition, the case is less fragile than if the fold lines were precut along their entire length. The closing tab could in fact sink completely to the effort and thus not to ensure locking.

Lorsque l'on souhaite ouvrir la patte de fermeture, du fait de l'agencement des pattes latérales, des zones latérales et de la patte de fermeture, un déchirement de lignes de pliages prédécoupées va se produire avant qu'une déformation des zones latérales ne permettent l'ouverture de la patte de fermeture.When it is desired to open the closure tab, because of the arrangement of the side tabs, the lateral zones and the closing tab, a tearing of pre-cut fold lines will occur before a deformation of the lateral zones does not occur. allow the opening of the closing tab.

Toutefois, après la première ouverture, seule la partie prédécoupée de la ligne est tout ou partie déchirée mais il est toujours possible d'ouvrir ou de fermer l'étui plusieurs fois.However, after the first opening, only the pre-cut part of the line is all or part torn but it is still possible to open or close the case several times.

Selon un mode de réalisation, la deuxième ligne de pliage peut être légèrement curviligne, la ligne étant incurvée vers la première ligne de pliage.According to one embodiment, the second fold line may be slightly curvilinear, the line being curved towards the first fold line.

Dans un tel cas, la pression dans les angles va être augmentée lors de la tentative d'ouverture de l'étui.In such a case, the pressure in the corners will be increased during the attempt to open the case.

Selon une variante du mode de réalisation, la deuxième ligne de pliage peut être sensiblement rectiligne, la ligne présentant deux décrochements rectilignes orientés à l'opposé de la première ligne de pliage.According to a variant of the embodiment, the second fold line may be substantially rectilinear, the line having two rectilinear recesses oriented opposite the first fold line.

Les décrochements viennent au contact de protubérance des pattes latérales servant au verrouillage des points du jour.The recesses come into contact with the protuberance of the lateral lugs used to lock the points of the day.

Selon un mode de réalisation, le panneau de contact et le panneau en sur-épaisseur peuvent avoir des formes identiques sensiblement trapézoïdale, la deuxième ligne de pliage formant la grande base du trapèze.According to one embodiment, the contact panel and the over-thickness panel may have identical substantially trapezoidal shapes, the second fold line forming the large base of the trapezium.

Selon une variante, les côtés non parallèles des panneau de contact et panneau en sur-épaisseur peuvent être arrondis.According to one variant, the non-parallel sides of the contact panel and over-thickness panel may be rounded.

Chaque quatrième ligne de pliage formant charnière entre la zone centrale et l'une des zones latérales peuvent être obliques.Each fourth fold line forming a hinge between the central zone and one of the lateral zones may be oblique.

Au moins une zone latérale peut comprendre en outre une cinquième ligne de pliage, supplémentaire et parallèle à la quatrième ligne de pliage formant charnière entre la zone centrale et la zone latérale.At least one lateral zone may further comprise a fifth additional fold line parallel to the fourth fold line forming a hinge between the central zone and the lateral zone.

Chaque ligne de pliage entre une patte latérale et un panneau latéral peut également être légèrement décalée vers l'intérieur du panneau latéral par rapport à la première ligne de pliage.Each fold line between a side tab and a side panel may also be slightly shifted inwardly of the side panel relative to the first fold line.

Ainsi les pattes latérales sont plus basses ce qui rend quasiment impossible de glisser un objet coupant du type lame ou cutter à l'intérieur de l'étui dans le but de l'ouvrir sans découper complètement les zones prédécoupées.Thus the side tabs are lower which makes it almost impossible to slip a cutting object of the blade or cutter type inside the case for the purpose of opening without cutting completely precut areas.

L'invention concerne également un flan destiné à la réalisation d'un étui.The invention also relates to a blank for the realization of a case.

Le flan comprend :

  • un panneau avant, un panneau arrière et des panneaux latéraux séparés par des lignes de pliages et définissant par pliage le corps de l'étui ;
  • un panneau d'ouverture/fermeture adjacent au panneau arrière et à un panneau de contact, ledit panneau d'ouverture/fermeture étant articulé à ces derniers par des lignes de pliage droites sensiblement parallèles
  • des pattes latérales adjacentes aux panneaux latéraux et articulées à ces derniers par une ligne de pliage ;
  • une patte de collage ;
  • un panneau en sur-épaisseur adjacent au panneau de contact, lesdits panneau de contact et panneau en sur-épaisseur étant destinés à former une même patte rentrante, étant articulés l'un par rapport à l'autre selon une ligne de pliage et étant sensiblement symétriques selon un plan perpendiculaire au flan et passant par ladite ligne de pliage.
The blank includes:
  • a front panel, a rear panel and side panels separated by fold lines and foldingly defining the body of the case;
  • an opening / closing panel adjacent the rear panel and a contact panel, said opening / closing panel being hinged thereto by substantially parallel straight fold lines
  • side tabs adjacent to the side panels and hinged thereto by a fold line;
  • a gluing tab;
  • an over-thickness panel adjacent to the contact panel, said contact panel and over-thickness panel being intended to form a same re-entrant lug, being articulated with respect to each other along a fold line and being substantially symmetrical in a plane perpendicular to the blank and passing through said fold line.

Le panneau en sur-épaisseur comprend une zone centrale et deux zones latérales, la zone centrale s'étendant le long d'au moins une partie de la ligne de pliage entre le panneau de contact et le panneau en sur-épaisseur, chaque zone latérale étant séparée de la zone centrale par une quatrième ligne de pliage formant charnièreThe over-thickness panel comprises a central zone and two lateral zones, the central zone extending along at least part of the fold line between the contact panel and the over-thickness panel, each lateral zone. being separated from the central zone by a fourth fold line forming a hinge

Le panneau de contact et le panneau en sur-épaisseur, destinés à former conjointement la patte rentrante, sont repliés l'un sur l'autre et solidarisés sur au moins une partie de la zone centrale, les zones latérales restant libres par rapport au panneau de contact.The contact panel and the over-thickness panel, intended to jointly form the re-entrant lug, are folded over one another and secured to at least a portion of the central zone, the lateral zones remaining free from the panel of contact.

D'autres particularités de l'invention résulteront de la description qui va suivre, en référence aux dessins annexés, donnés à titre d'exemples non limitatifs.

  • La figure 1 est une vue en plan de la face interne d'un flan selon un mode de réalisation de la deuxième ligne de pliage ;
  • La figure 2 est une vue en plan du flan de la figure 1, après formation de la patte rentrante, les pattes latérales et la deuxième ligne de pliage étant réalisées selon un autre mode de réalisation ;
  • La figure 3 est une vue en perspective d'un étui avec sa patte de fermeture ouverte, issu de la mise en volume du flan de la figure 1 ;
  • La figure 4 est une vue de dessus à l'intérieur de l'étui de la patte de fermeture et de la patte rentrante.
Other features of the invention will result from the description which follows, with reference to the accompanying drawings, given by way of non-limiting examples.
  • Figure 1 is a plan view of the inner face of a blank according to one embodiment of the second fold line;
  • Figure 2 is a plan view of the blank of Figure 1, after formation of the re-entrant tab, the side tabs and the second fold line being made according to another embodiment;
  • Figure 3 is a perspective view of a holster with its open closure tab, resulting from the setting volume of the blank of Figure 1;
  • Figure 4 is a top view inside the case of the closure tab and the re-entrant lug.

La face interne du flan 1 définit la face du flan 1 qui va se trouver à l'intérieur de l'étui 2, lorsque le flan 1 sera mis en volume, la cavité de l'étui 2 étant alors obstruée.The inner face of the blank 1 defines the face of the blank 1 which will be inside the case 2, when the blank 1 will be placed in volume, the cavity of the case 2 then being obstructed.

Le flan 1 comporte une partie 2' destinée à former le corps 4 de l'étui 2 et une partie 2" destinée à former la patte de fermeture 3 de l'étui 2 et des pattes dites latérales 5, 5'.The blank 1 comprises a portion 2 'intended to form the body 4 of the case 2 and a portion 2' intended to form the closing tab 3 of the case 2 and said lateral tabs 5, 5 '.

La partie 2' comporte un panneau avant 6, un panneau arrière 7 et des panneaux latéraux 8 et 8'.Part 2 'comprises a front panel 6, a rear panel 7 and side panels 8 and 8'.

Le flan 1 comprend un axe de symétrie coupant les panneaux 6, 7, 8, 8' en deux. On décrit dans la suite un seul côté du flan 1, l'autre côté pouvant être obtenu par symétrie, les variantes de réalisation décrites ensuite pouvant concerner l'un et/ou l'autre des côtés.The blank 1 comprises an axis of symmetry intersecting the panels 6, 7, 8, 8 'in two. In the following, only one side of the blank 1 is described, the other side being able to be obtained by symmetry, the variant embodiments described later being able to relate to one and / or the other of the sides.

Le panneau latéral 8, adjacent au panneau arrière 7 et au panneau avant 6, s'articule par rapport à ces mêmes panneaux par l'intermédiaire de lignes de pliage 9, 10.The side panel 8, adjacent to the rear panel 7 and the front panel 6, is articulated with respect to these panels by means of folding lines 9, 10.

Le panneau latéral 8', adjacent au panneau avant 6, s'articule par rapport à ce dernier par l'intermédiaire d'une ligne de pliage 10'. La ligne de pliage 10' est opposée et sensiblement parallèle au bord droit 9' du panneau latéral 8'.The side panel 8 ', adjacent to the front panel 6, is articulated with respect to the latter by means of a fold line 10'. The fold line 10 'is opposite and substantially parallel to the right edge 9' of the side panel 8 '.

Les panneaux latéraux 8, 8' sont opposés par rapport au panneau avant 6.The side panels 8, 8 'are opposite to the front panel 6.

Une patte de collage 11, adjacente au panneau arrière 7, s'articule par rapport à ce dernier par l'intermédiaire d'une ligne de pliage 12.A gluing lug 11, adjacent to the rear panel 7, is articulated with respect to the latter by means of a fold line 12.

Les lignes de pliage 10', 10, 9 , 12 ainsi que le bord droit 9' sont sensiblement parallèles.The fold lines 10 ', 10, 9, 12 and the right edge 9' are substantially parallel.

La partie 2" comprend un panneau d'ouverture/fermeture 13, destiné à obturer l'ouverture de l'étui 2 formé par la mise en volume du flan 1, un panneau de contact 14 et un panneau en sur-épaisseur 15 destinés à former conjointement une patte rentrante 16. Le panneau 14 est destiné à venir en contact, une fois le flan 1 mis en volume et à l'état fermé, avec l'intérieur du panneau avant 6.Part 2 "comprises an opening / closing panel 13, intended to seal the opening of the case 2 formed by setting the volume of the blank 1, a contact panel 14 and an over-thickness panel 15 intended for The panel 14 is intended to come into contact, once the blank 1 has been placed in volume and in the closed state, with the inside of the front panel 6.

Le panneau d'ouverture/fermeture 13 est adjacent au panneau arrière 7 du flan 1 et s'articule à ce dernier par l'intermédiaire d'une première ligne de pliage 17.The opening / closing panel 13 is adjacent to the rear panel 7 of the blank 1 and is connected to the latter by means of a first fold line 17.

A l'extrémité du panneau 13, opposée à la première ligne de pliage 17, se trouve le panneau 14 articulé au panneau 13 par l'intermédiaire d'une deuxième ligne de pliage 18.At the end of the panel 13, opposite to the first fold line 17, is the panel 14 hinged to the panel 13 via a second fold line 18.

La deuxième ligne de pliage 18 est prédécoupée, des segments découpés et non découpés alternant de façon sensiblement régulière le long de la ligne 18.The second fold line 18 is precut, cut and uncut segments alternating substantially evenly along the line 18.

La deuxième ligne 18 est légèrement incurvée vers la ligne 17.The second line 18 is slightly curved towards the line 17.

Selon le mode de réalisation représenté sur la figure 2, la deuxième ligne 18 est rectiligne sur la plus grande partie de sa longueur. Elle présente cependant à ses deux extrémités deux décrochements D1, D2 vers le panneau de contact 14.According to the embodiment shown in Figure 2, the second line 18 is rectilinear over most of its length. However, it has at its two ends two recesses D1, D2 towards the contact panel 14.

Le panneau 15 est adjacent au panneau 14 et s'articule à ce dernier par l'intermédiaire d'une troisième ligne de pliage 19.The panel 15 is adjacent to the panel 14 and is connected to the latter by means of a third fold line 19.

Les panneaux 14, 15 sont sensiblement symétriques par rapport à la troisième ligne de pliage 19 commune.The panels 14, 15 are substantially symmetrical with respect to the third folding line 19 common.

La deuxième ligne de pliage 18 forme un côté du panneau 14.The second fold line 18 forms one side of the panel 14.

Le panneau 15 présente un bord droit 20 opposé à la troisième ligne de pliage 19.The panel 15 has a straight edge 20 opposite to the third fold line 19.

Les lignes de pliage 18, 19 ainsi que le bord droit 20 sont sensiblement parallèles.The fold lines 18, 19 as well as the straight edge 20 are substantially parallel.

Deux bords courbes 21, 21' joignent les lignes de pliage 18, 19 et deux bords courbes 22, 22' joignent la troisième ligne de pliage 19 au bord droit 20.Two curved edges 21, 21 'join the fold lines 18, 19 and two curved edges 22, 22' join the third fold line 19 to the right edge 20.

Le panneau 15 comprend en outre deux séries de deux lignes de pliage 30, 31, 30', 31'.The panel 15 further comprises two sets of two fold lines 30, 31, 30 ', 31'.

Les lignes 30, 31 sont sensiblement parallèles. Les lignes 30', 31' sont également sensiblement parallèles. Toutefois, les lignes 30, 31, 30', 31' sont obliques par rapport au bord 20 et à la troisième ligne de pliage 19.The lines 30, 31 are substantially parallel. The lines 30 ', 31' are also substantially parallel. However, the lines 30, 31, 30 ', 31' are oblique with respect to the edge 20 and the third fold line 19.

La ligne 30 s'étend de façon rectiligne entre la jonction des bords courbes 21, 22 jusqu'au premier tiers du bord 20, le premier tiers étant pris du côté du bord 22.The line 30 extends rectilinearly between the junction of the curved edges 21, 22 to the first third of the edge 20, the first third being taken from the edge 22.

La ligne 30' s'étend de façon rectiligne entre la jonction des bords courbes 21', 22' jusqu'au premier tiers du bord 20, le premier tiers étant pris du côté du bord 22'.The line 30 'extends rectilinearly between the junction of the curved edges 21', 22 'to the first third of the edge 20, the first third being taken from the edge 22' side.

L'indication relative au premier tiers du bord 20 est donné en rapport au mode de réalisation représenté sur les figures. Dans d'autres modes de réalisation non représentés, les lignes 30, 30' peuvent être placées différemment.The indication relating to the first third of the edge 20 is given in relation to the embodiment shown in the figures. In other embodiments not shown, the lines 30, 30 'can be placed differently.

Les lignes 31, 31' sont sensiblement parallèles aux lignes 30, 30' respectivement. Elles s'étendent entre le milieu des bords 22, 22' et le bord droit 20.The lines 31, 31 'are substantially parallel to the lines 30, 30' respectively. They extend between the middle of the edges 22, 22 'and the right edge 20.

De même, les lignes 31, 31' peuvent être différentes quant à leur positionnement par rapport aux lignes 30, 30', notamment en terme de parallélisme.Similarly, the lines 31, 31 'may be different in their positioning relative to the lines 30, 30', especially in terms of parallelism.

Dans d'autres modes de réalisation non représentés, chaque série de lignes peut comprendre plus que deux lignes ou une seule ligne.In other embodiments not shown, each series of lines may comprise more than two lines or a single line.

En référence à la figure 1, le panneau 15 est divisé en trois zones distinctes : une zone centrale 32 comprise entre les lignes 30, 30' et deux zones latérales 33, 33' comprises respectivement entre la ligne 30 et le bord 22 et entre la ligne 30' et le bord 22'.With reference to FIG. 1, the panel 15 is divided into three distinct zones: a central zone 32 between the lines 30, 30 'and two lateral zones 33, 33' respectively between the line 30 and the edge 22 and between the line 30 'and the edge 22'.

Le flan 1 comporte également des pattes latérales 5, 5' adjacentes respectivement aux panneaux latéraux 8, 8'.The blank 1 also has side tabs 5, 5 'respectively adjacent to the side panels 8, 8'.

La patte 5' est l'image de la patte 5.The tab 5 'is the image of the tab 5.

La patte latérale 5 s'articule au panneau latéral 8 par l'intermédiaire de la ligne de pliage 23. La patte latérale 5' s'articule au panneau latéral 8' par l'intermédiaire de la ligne de pliage 23'.The lateral tab 5 articulates with the side panel 8 via the fold line 23. The lateral tab 5 'articulates with the side panel 8' via the fold line 23 '.

Les lignes de pliages 23, 23' sont alignées et décalées vers l'intérieur des panneaux latéraux 8, 8' par rapport à la ligne 17.The fold lines 23, 23 'are aligned and inwardly offset from the side panels 8, 8' with respect to the line 17.

Les lignes de pliage 23, 23' sont en partie prédécoupées. Le pré-découpage s'étend pour la ligne 23 entre la jonction avec la ligne de pliage 10 et environ le milieu de la ligne 23. La ligne 23' est prédécoupée entre la jonction avec la ligne 10' et environ le milieu de la ligne 23'.The fold lines 23, 23 'are partly precut. The pre-cutting extends for the line 23 between the junction with the fold line 10 and about the middle of the line 23. The line 23 'is pre-cut between the junction with the line 10' and about the middle of the line 23.

Dans d'autres modes de réalisation, le pré-découpage peut s'étendre sur une longueur différente, entre une absence de pré-découpage et une ligne 23, 23' complètement prédécoupée.In other embodiments, the pre-cutting may extend over a different length, between an absence of pre-cutting and a line 23, 23 'completely pre-cut.

La région de la patte 5 jouxtant la ligne de pliage 23 est appelée la base de la patte 5. La région de la patte 5' jouxtant la ligne de pliage 23' est appelée la base de la patte 5'.The region of the leg 5 adjacent the fold line 23 is called the base of the leg 5. The region of the leg 5 'adjacent the fold line 23' is called the base of the leg 5 '.

La région de la patte 5 diamétralement opposée à la base de la patte 5 est appelée le sommet de la patte 5. La région de la patte 5' diamétralement opposée à la base de la patte 5' est appelée le sommet de la patte 5'.The region of the tab 5 diametrically opposed to the base of the tab 5 is called the top of the tab 5. The region of the tab 5 'diametrically opposite the base of the tab 5' is called the top of the tab 5 ' .

Les pattes 5 et 5' peuvent comporter à leur base une protubérance respectivement 24, 24' comportant un bord droit respectivement 24a, 24'a et une protubérance respectivement 25, 25'.The tabs 5 and 5 'may comprise at their base a protuberance respectively 24, 24' having a straight edge respectively 24a, 24'a and a protuberance respectively 25, 25 '.

En référence à la figure 2, et selon un autre mode de réalisation, la patte 5 peut comporter à son sommet une protubérance pouvant avoir la forme d'un ergot 26 comportant un bord droit 26a. La patte 5' peut comporter à son sommet une protubérance pouvant avoir la forme d'un ergot 26' comportant un bord droit 26'a.Referring to Figure 2, and according to another embodiment, the lug 5 may comprise at its top a protuberance may have the shape of a lug 26 having a straight edge 26a. The lug 5 'may have at its top a protrusion which may have the shape of a lug 26' having a straight edge 26'a.

Les bords 26a, 26'a, 24a, 24'a peuvent être sensiblement parallèles aux lignes de pliage 10, 10' du flan 1.The edges 26a, 26'a, 24a, 24'a may be substantially parallel to the fold lines 10, 10 'of the blank 1.

Outre l'ergot 26, 26', la différence entre les figures 1 et 2 réside dans l'état d'avancement de la formation de la patte rentrante 16.In addition to the lug 26, 26 ', the difference between FIGS. 1 and 2 lies in the state of advancement of the formation of the re-entrant lug 16.

Sur la figure 1, la patte rentrante 16 est dans sa forme initiale juste après découpage du flan 1 dans une feuille de papier, carton, plastique (PET, PVC, PP) ou analogue.In Figure 1, the re-entrant tab 16 is in its initial form just after cutting the blank 1 in a sheet of paper, cardboard, plastic (PET, PVC, PP) or the like.

Sur la figure 2, la patte rentrante 16 est sous sa forme finale, obtenue après rabattement de 180°, selon le sens indiqué par la flèche A de la figure 1, du panneau 15 sur le panneau 14 par articulation autour de la troisième ligne de pliage 19 et après solidarisation desdits panneaux l'un à l'autre.In FIG. 2, the re-entrant lug 16 is in its final form, obtained after being folded by 180 °, in the direction indicated by the arrow A of FIG. 1, of the panel 15 on the panel 14 by hinge around the third line of folding 19 and after securing said panels to one another.

La patte rentrante 16 sera décrite plus en détail dans la description qui va suivre.The re-entrant tab 16 will be described in more detail in the following description.

On décrit maintenant un étui 2.A case 2 is now described.

Un tel étui 2 est représenté sur la figure 3.Such a case 2 is shown in FIG.

Un étui 2 présente un corps 4 et deux pattes de fermeture 3, à chacune des extrémités dudit corps, permettant l'ouverture et la fermeture dudit étui 2 ainsi que des pattes latérales 5 , 5' rabattables.A case 2 has a body 4 and two closure tabs 3, at each end of said body, allowing the opening and closing of said case 2 and the lateral legs 5, 5 'folding.

Le corps 4 de l'étui 2 est défini par la partie 2' du flan 1 mis en volume.The body 4 of the case 2 is defined by the portion 2 'of the blank 1 placed in volume.

Le corps 4 de l'étui est maintenu en volume par solidarisation de la patte de collage 11 avec le panneau latéral 8'.The body 4 of the case is held in volume by securing the glue lug 11 with the side panel 8 '.

Le panneau avant 6 de l'étui 2 est sensiblement parallèle au panneau arrière 7 de l'étui 2 et sensiblement perpendiculaires aux panneaux latéraux 8, 8'.The front panel 6 of the case 2 is substantially parallel to the rear panel 7 of the case 2 and substantially perpendicular to the side panels 8, 8 '.

On décrit une seule des deux pattes de fermeture 3 de l'étui 2.Only one of the two closing tabs 3 of the case 2 is described.

La patte de fermeture 3 comprend un panneau d'ouverture/fermeture 13 et une patte rentrante 16. La patte de fermeture 3 est articulé au corps 4 de l'étui 2 par l'intermédiaire de la première ligne de pliage droite 17 formant charnière.The closure lug 3 comprises an opening / closing panel 13 and a re-entrant lug 16. The closing lug 3 is articulated to the body 4 of the case 2 via the first right hinge fold line 17.

L'épaisseur de la patte rentrante 16 est, en tout ou partie, supérieure à l'épaisseur du panneau d'ouverture/fermeture 13 de la patte de fermeture 3.The thickness of the re-entrant tab 16 is wholly or partly greater than the thickness of the opening / closing panel 13 of the closing tab 3.

La sur-épaisseur résultante engendre un décrochement 20 s'étendant le long de la ligne de pliage 18.The resulting over thickness produces a recess 20 extending along the fold line 18.

La patte rentrante 16 de l'étui 2 présente un bord droit 19 sensiblement parallèle au décrochement 20 et à la ligne de pliage 18.The re-entrant tab 16 of the case 2 has a straight edge 19 substantially parallel to the recess 20 and to the fold line 18.

Le bord droit 19 de la patte rentrante 16 se confond avec la troisième ligne de pliage 19 du flan 1 de la figure 1.The right edge 19 of the re-entrant tab 16 merges with the third fold line 19 of the blank 1 of FIG.

Le bord droit 19 est relié au décrochement 20 par les deux bords courbes 22, 22' et à la ligne de pliage 18 par les deux bords courbes 21, 21'.The right edge 19 is connected to the recess 20 by the two curved edges 22, 22 'and the fold line 18 by the two curved edges 21, 21'.

Par pliage le long de la troisième ligne 19 selon le sens de la flèche A de la figure 1, les panneaux 14, 15 sont repliés l'un sur l'autre. Les panneaux 14, 15 sont solidarisés par l'intermédiaire de la solidarisation de la zone centrale 32 du panneau 15 et de la zone correspondante sur le panneau 14 lorsque le panneau 15 est replié sur le panneau 14.By folding along the third line 19 in the direction of the arrow A of Figure 1, the panels 14, 15 are folded over one another. The panels 14, 15 are secured through the fastening of the central zone 32 of the panel 15 and the corresponding zone on the panel 14 when the panel 15 is folded over the panel 14.

Chaque zone latérale 33, 33' du panneau 15 et chaque zone correspondante du panneau 14 ne sont pas fixées rigidement l'une à l'autre.Each lateral zone 33, 33 'of the panel 15 and each corresponding zone of the panel 14 are not fixed rigidly to one another.

La solidarisation des deux zones des panneaux 14, 15 et la solidarisation de la patte de collage 11 au panneau latéral 8' peut se faire par collage ou soudage, soit par double passage sur une plieuse-colleuse, soit en un seul passage sur une plieuse-colleuse à l'équerre, avec doigt de rabattage ou équivalent.The joining of the two zones of the panels 14, 15 and the joining of the glue lug 11 to the side panel 8 'can be done by gluing or welding, either by double pass on a folder-gluer, or in a single pass on a folder square glue, with flap finger or equivalent.

Lorsque la patte latérale 5 est repliée à angle droit par rapport au panneau latéral 8, auquel elle est rattachée, tel que représenté sur la figure 3 :

  • le haut de la patte latérale est situé à la hauteur de la première ligne de pliage 17 ;
  • le bord droit 24a de la protubérance 24 est sensiblement parallèle au bord droit 28 du panneau avant 6. Un léger espace E1, aussi appelé « point du jour », sépare alors le bord 24a du bord 28.
When the lateral tab 5 is bent at right angles to the side panel 8 to which it is attached, as shown in FIG. 3:
  • the top of the side tab is located at the height of the first fold line 17;
  • the right edge 24a of the protuberance 24 is substantially parallel to the right edge 28 of the front panel 6. A slight space E1, also called "point of the day", then separates the edge 24a of the edge 28.

Lorsque la patte latérale 5' est repliée à angle droit par rapport au panneau latéral 8', auquel elle est rattachée, le bord droit 24'a de la protubérance 24' est sensiblement parallèle au bord droit 28 du panneau avant 6. Un léger espace E1', aussi appelé « point du jour », sépare alors le bord 24'a du bord 28.When the side tab 5 'is folded at right angles to the side panel 8' to which it is attached, the right edge 24'a of the protuberance 24 'is substantially parallel to the right edge 28 of the front panel 6. A slight space E1 ', also called "point of the day", then separates the edge 24'a of the edge 28.

La fermeture de la patte de fermeture 3 signifie que celle-ci obstrue la cavité délimité par le corps 4 de l'étui 2.Closing the closure tab 3 means that it closes the cavity defined by the body 4 of the case 2.

La fermeture de la patte de fermeture 3 peut se produire de la façon décrite ci-dessous.Closing of the closure tab 3 may occur as described below.

La patte de fermeture 3, comportant une patte rentrante 16 pliée à angle droit par rapport au panneau d'ouverture/fermeture 13 selon la deuxième ligne de pliage 18, est articulée en rotation autour de la première ligne de pliage 17, formant charnière, selon le sens indiqué par la flèche B de la figure 3.The closing tab 3, comprising a re-entrant lug 16 folded at right angles to the opening / closing panel 13 along the second fold line 18, is articulated in rotation around the first folding line 17, forming a hinge, according to the direction indicated by the arrow B in Figure 3.

La patte rentrante 16 est introduite dans l'étui 2. L'introduction est rendue possible grâce aux espaces E1, E1' à travers lesquels la patte 16 est introduite.The re-entrant lug 16 is inserted into the case 2. The introduction is made possible by the spaces E1, E1 'through which the lug 16 is introduced.

Les espaces E1, E1' ont une largeur équivalente à une à deux fois l'épaisseur de la patte rentrante 16. Cette largeur est adaptée selon le format de l'étui et le type de matériau utilisé.The spaces E1, E1 'have a width equivalent to one to two times the thickness of the re-entrant lug 16. This width is adapted according to the format of the case and the type of material used.

Or, le fait que les zones latérales 33, 33' ne soient pas fixés rigidement au panneau 14 autorise un léger écartement de chaque zone 33, 33' par rapport au panneau 14.However, the fact that the lateral zones 33, 33 'are not fixed rigidly to the panel 14 allows a slight spacing of each zone 33, 33' with respect to the panel 14.

Toutefois, lors de l'introduction, les zones latérales 33, 33' sont plaquées contre le panneau 14.However, during the introduction, the lateral zones 33, 33 'are pressed against the panel 14.

Lorsque la patte rentrante 16 est totalement introduite dans ce dernier, l'extérieur du panneau de contact 14 est en contact avec l'intérieur du panneau avant 6 et l'intérieur du panneau 13 est en contact avec les pattes latérales 5, 5'.When the re-entrant lug 16 is fully inserted into the latter, the outside of the contact panel 14 is in contact with the inside of the front panel 6 and the inside of the panel 13 is in contact with the lateral lugs 5, 5 '.

Et lorsque la patte rentrante 16 est totalement introduite, le bord 20 des zones latérales 33, 33' se trouve au dessous des pattes latérales 5, 5', l'écartement des zones latérales 33, 33' étant augmenté par la présence des plis 30, 30', 31, 31'.And when the re-entrant tab 16 is fully inserted, the edge 20 of the lateral zones 33, 33 'is below the lateral lugs 5, 5', the spacing lateral zones 33, 33 'being increased by the presence of the folds 30, 30', 31, 31 '.

Ainsi les pattes 5, 5' sont prises en tenaille entre le panneau 13 et les zones latérales 33, 33'.Thus the tabs 5, 5 'are gripped between the panel 13 and the side zones 33, 33'.

Un étui 2 comportant une ou deux pattes de fermeture 3 peut être fermé de cette façon.A case 2 having one or two closure tabs 3 can be closed in this way.

Un tel système garantit d'abord un maintien efficace de la patte de fermeture 3 en position fermée ainsi que l'inviolabilité de l'étui 2.Such a system ensures firstly an effective maintenance of the closing tab 3 in the closed position and the inviolability of the case 2.

En effet, si l'on souhaite ouvrir l'étui 2, il est nécessaire d'appliquer une force sur la patte de fermeture 3. Or celle-ci est en prise avec les pattes latérales 5, 5' par l'intermédiaire des zones latérales 33, 33'. L'effort va donc se reporter sur des zones plus faibles.Indeed, if it is desired to open the case 2, it is necessary to apply a force on the closure lug 3. Or it is engaged with the side lugs 5, 5 'through the zones lateral 33, 33 '. The effort will therefore refer to weaker areas.

Ces zones plus faibles correspondent aux lignes de pliage ou parties de ligne de pliage prédécoupées, à savoir les lignes 18, 23, 23'.These weaker areas correspond to the fold lines or pre-cut fold line parts, namely the lines 18, 23, 23 '.

Un effort d'ouverture conduit à une déchirure de l'un ou l'autre des pré-découpage , voire de tous.An opening effort leads to a tear of one or the other of the pre-cutting, or even of all.

Ainsi on ne peut ouvrir le produit sans abîmer de manière irréversible l'étui 2. L'aspect fermé et non déchiré de l'étui 2 confère donc à l'étui 2 une garantie d'inviolabilité.Thus, the product can not be opened without irreversibly damaging the case 2. The closed and un-torn appearance of the case 2 thus gives the case 2 a guarantee of inviolability.

Sur la figure 3, on a fait apparaître en pointillés les ergots 26, 26'.In FIG. 3, the pins 26, 26 'have been shown in dotted lines.

Dans un tel mode de réalisation, lorsque les pattes 5, 5' sont repliées, un espace E2, E2' existe entre les bords 26a, 26'a et le bord 28 du panneau avant 6. Cet espace E2, E2' est de largeur légèrement inférieure à l'épaisseur de la patte rentrante au niveau de la zone centrale 32.In such an embodiment, when the lugs 5, 5 'are folded, a space E2, E2' exists between the edges 26a, 26'a and the edge 28 of the front panel 6. This space E2, E2 'is of width slightly less than the thickness of the re-entrant lug at the central zone 32.

Ainsi, lorsque la patte rentrante est complètement introduite, les ergots 26, 26' viennent se placer sous le décrochement 20 de la patte rentrante 16.Thus, when the re-entrant lug is fully inserted, the lugs 26, 26 'are placed under the recess 20 of the re-entrant lug 16.

Les ergots 26, 26' permettent ainsi de réaliser un crochetage de la patte aidant au maintien de la patte de fermeture 3 en position fermée et augmentant la résistance à l'ouverture de la patte de fermeture 3.The lugs 26, 26 'thus allow a hooking of the tab helping to maintain the closure lug 3 in the closed position and increasing the resistance to the opening of the closure lug 3.

Il faudra appliquer une certaine force pour vaincre la résistance émanant du crochetage de la patte rentrante 26 et déplacer ainsi les ergots 26, 26' d'une distance équivalente à l'épaisseur du décrochement 20.It will be necessary to apply a certain force to overcome the resistance emanating from the hooking of the re-entrant tab 26 and thus move the lugs 26, 26 'by a distance equivalent to the thickness of the recess 20.

Cette force supplémentaire qu'il serait nécessaire d'appliquer vient accentuer l'effet déjà obtenu dans le mode de réalisation sans ergots 26, 26', à savoir que la patte de fermeture va se déchirer avant de s'ouvrir.This additional force that it would be necessary to apply accentuates the effect already obtained in the embodiment without pins 26, 26 ', namely that the closure tab will tear before opening.

Claims (19)

  1. Case (2) made by folding a sheet of flexible material such as paper, cardboard, plastic (PET, PVC, PP) or similar, comprising:
    - a body (4) comprising a front panel (6), a rear panel (7) and at least two side panels (8, 8'), said side panels (8, 8') being substantially perpendicular to the front (6) and rear (7) panels,
    - at least one closing tab (3) on one of the ends of the body (4), said closing tab (3) comprising an opening/closing panel (13) hinged to the rear panel (7) of said case (2) along a first folding line (17) forming a hinge for the closing tab (3), said opening/closing panel (13) comprising a retractable tab (16) on the end opposite the first folding line (17) which can be folded at a right angle in relation to said opening/closing panel (13) along a second folding line (18) substantially parallel to the first folding line (17),
    the retractable tab (16) of the closing tab (3) comprising a panel (14) in contact with the inside of the front panel (6) in the closed position of the closing tab (3), and comprising a panel (15) thicker than the contact panel (14), said contact panel and thicker panel being hinged to one another along a third folding line (19), the closing tab (3) being foldable over an opening of said case (2), an opening comprising two opposite edges, substantially perpendicular to the first folding line (17), these edges each having a side tab (5, 5') folded at a right angle in relation to a side panel (8, 8') of the case (2) along a folding line (23, 23'),
    characterised in that the thicker panel (15) comprises a central area (32) rigidly fixed to the contact panel (14) and two side areas (33, 33') located on either side of the central area (32), each side area (33, 33') being hinged to the central area (32) along a fourth folding line (30, 30') forming a hinge so that, in the closed position of the closing tab (3), each side tab (5, 5') is located between the closing tab (3) and a side area (33, 33').
  2. Case (2) according to claim 1, characterised in that the second folding line (18) is entirely or partially pre-cut in dotted lines, perforated lines or tracers.
  3. Case (2) according to claim 2, characterised in that the second folding line (18) is slightly curvilinear, the line (18) being curved towards the first folding line (17).
  4. Case (2) according to claim 2, characterised in that the second folding line (18) is substantially rectilinear, the line (18) having two rectilinear indentations (D1, D2) in the opposite direction to the first folding line (17).
  5. Case (2) according to any one of the claims from 1 to 4, characterised in that each folding line (23, 23') between a side tab (5, 5') and a side panel (8, 8') is pre-cut along all or part of its length on the side adjacent to the front panel (6).
  6. Case (2) according to any one of the claims from 1 to 5, characterised in that the contact panel (14) and the thicker panel (15) have the same substantially trapezoidal shape, the second folding line (18) forming the large base of the trapezium.
  7. Case (2) according to claim 6, characterised in that the non-parallel sides (22, 22') of the contact panel (14) and the thicker panel (15) are rounded.
  8. Case (2) according to any one of the preceding claims, characterised in that that every fourth folding line (30, 30') forming a hinge between the central area (32) and one of the side areas (33, 33') is oblique.
  9. Case (2) according to claim 8, characterised in that at least one side area (33, 33') can also comprise one or more additional fifth folding lines (31, 31'), parallel to the fourth folding line (30, 30') forming a hinge between the central area (32) and the side area (33, 33').
  10. Case (2) according to any one of the preceding claims, characterised in that each folding line (23, 23') between a side tab (5, 5') and a side panel (8, 8') is slightly shifted towards the inside of the side panel (8, 8') in relation to the first folding line (17).
  11. Blank (3) designed for producing a case (2) according to any one of the preceding claims, this blank (3) comprising:
    - a front panel (6), a rear panel (7) and side panels (8, 8') separated by folding lines (9, 10, 9', 10') and defining the body (4) of the case (2) by folding;
    - an opening/closing panel (13) adjacent to the rear panel (7) and a contact panel (14), said opening/closing panel (13) being hinged to the latter by straight, substantially parallel folding lines (17, 18)
    - side tabs (5, 5') adjacent to the side panels (8, 8') and hinged to the latter by a folding line (23, 23');
    - an adhesion tab (11);
    - a thicker panel (15) adjacent to the contact panel (14), said contact panel (14) and thicker panel (15) being designed to form a single retractable tab (16), hinged in relation to one another along a third folding line (19) and substantially symmetrical in a plane perpendicular to the blank (3) and passing through said third folding line (19);
    characterised in that the thicker panel (15) comprises a central area (32) and two side areas (33, 33'), the central area (32) extending along the length of at least one part of the third folding line (19) between the contact panel (14) and the thicker panel (15), each side area (33, 33') being separated from the central area (32) by a fourth folding line (30, 30') forming a hinge.
  12. Blank (3) according to claim 11, characterised in that the contact panel (14) and the thicker panel (15), designed to jointly form the retractable panel (16), are folded onto one another and solidly attached to at least one part of the central area (32), the side areas (33, 33') remaining free in relation to the contact panel (14).
  13. Blank (3) according to one of the claims 11 or 12, characterised in that the second folding line (18) between the opening/closing panel (13) and the contact panel (14) is pre-cut in dotted lines, perforated lines or tracers.
  14. Blank (3) according to claim 13, characterised in that the second folding line (18) is slightly curvilinear, the line being curved towards the first folding line (17).
  15. Blank (3) according to claim 13, characterised in that the second folding line (18) is substantially rectilinear, the line (18) having two rectilinear indentations (D1, D2) in the opposite direction to the first folding line (17).
  16. Blank (3) according to any one of the claims from 11 to 15, characterised in that each folding line (23, 23') between a side tab (5, 5') and a side panel (8, 8') is pre-cut along all or part of its length on the side adjacent to the front panel (6).
  17. Blank (3) according to any one of the claims from 11 to 16, characterised in that every fourth folding line (30, 30') forming a hinge is oblique.
  18. Blank (3) according to any one of the claims from 11 to 17, characterised in that each side area (33, 33') can also comprise one or more additional fifth folding lines (31, 31'), parallel to the fourth folding line (30, 30') forming a hinge.
  19. Blank (3) according to any one of the preceding claims, characterised in that each folding line (23, 23') between a site tab (5, 5') and a side panel (8, 8') is slightly shifted towards the inside of the side panel (8, 8') in relation to the edges of the front (6) and rear (7) panels forming an opening of the case (2).
EP04290180A 2003-02-05 2004-01-23 Tamper-evident closure system for a container Expired - Lifetime EP1447335B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0301348 2003-02-05
FR0301348A FR2850633B1 (en) 2003-02-05 2003-02-05 INVIOLABLE CLOSURE SYSTEM OF CASE

Publications (2)

Publication Number Publication Date
EP1447335A1 EP1447335A1 (en) 2004-08-18
EP1447335B1 true EP1447335B1 (en) 2007-07-25

Family

ID=32669339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04290180A Expired - Lifetime EP1447335B1 (en) 2003-02-05 2004-01-23 Tamper-evident closure system for a container

Country Status (3)

Country Link
EP (1) EP1447335B1 (en)
DE (1) DE602004007700T2 (en)
FR (1) FR2850633B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930236B1 (en) 2008-04-21 2010-05-28 Packetis PACKAGING CASE COMPRISING MEANS OF INVIOLABILITY
KR101803537B1 (en) 2012-02-09 2017-11-30 가부시키가이샤 한도오따이 에네루기 켄큐쇼 Light-emitting element
GB201806942D0 (en) * 2018-04-27 2018-06-13 Multi Packaging Solutions Uk Ltd Tamper evident container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1117581A (en) * 1954-12-27 1956-05-24 Advanced cardboard packaging box
DE1586695B1 (en) * 1967-03-14 1971-01-14 Hoehing Kartonagenfab Hermann Snap closure for packaging
FR2693168B1 (en) * 1992-07-03 1994-09-16 Trinome Sa Packaging for the packaging of all types of objects.
FR2807399B1 (en) * 2000-04-07 2002-05-31 Allardi CASE WITH LID FLAP HOOKING SYSTEM AND ITS BLANK

Also Published As

Publication number Publication date
EP1447335A1 (en) 2004-08-18
FR2850633B1 (en) 2005-03-18
DE602004007700T2 (en) 2008-04-30
FR2850633A1 (en) 2004-08-06
DE602004007700D1 (en) 2007-09-06

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