EP0752374B1 - Tamper proof hermetically-sealed box - Google Patents

Tamper proof hermetically-sealed box Download PDF

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Publication number
EP0752374B1
EP0752374B1 EP95440037A EP95440037A EP0752374B1 EP 0752374 B1 EP0752374 B1 EP 0752374B1 EP 95440037 A EP95440037 A EP 95440037A EP 95440037 A EP95440037 A EP 95440037A EP 0752374 B1 EP0752374 B1 EP 0752374B1
Authority
EP
European Patent Office
Prior art keywords
groove
base
cover
horizontal
rim
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
EP95440037A
Other languages
German (de)
French (fr)
Other versions
EP0752374A1 (en
Inventor
François Guillin
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.)
Groupe Guillin SA
Original Assignee
Groupe Guillin 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 Groupe Guillin SA filed Critical Groupe Guillin SA
Priority to EP95440037A priority Critical patent/EP0752374B1/en
Priority to AT95440037T priority patent/ATE161502T1/en
Priority to DE69501329T priority patent/DE69501329T2/en
Priority to ES95440037T priority patent/ES2110825T3/en
Publication of EP0752374A1 publication Critical patent/EP0752374A1/en
Application granted granted Critical
Publication of EP0752374B1 publication Critical patent/EP0752374B1/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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/021—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the inside, or a part turned to the inside, of the mouth
    • 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
    • B65D2401/10—Tearable part of the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00101—Shape of the outer periphery curved square-like or rectangular-like
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/0012—Shape of the outer periphery having straight sides, e.g. with curved corners
    • B65D2543/00175—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
    • B65D2543/00194—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546—NO contact
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/0062—Groove or hollow bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/00768—U-shaped or inverted U
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00796—Totality

Definitions

  • the present invention relates to a box for packaging food products comprising means for ensuring both the hermeticity and the inviolability of the box when it is closed.
  • This second function is used in particular to guarantee the end user that he is the first to open the box. There is therefore no doubt as to the freshness of the products contained in the packaging, which present themselves to said user in the particularly gaseous atmosphere as it originally existed in the box.
  • the box for packaging food products of the invention has a bottom having a wall lateral peripheral flaring along a rim offset towards the outside with respect to the surface of said wall and with respect to the container proper, and a cover comprising a bowl coming to adapt to this bottom to enclose the product to be packaged therein.
  • the rim and the cover of the box of the invention include means cooperating with each other to simultaneously ensure the hermeticity and the inviolability of the closed box.
  • Airtightness means that there is no exchange between the atmospheres inside and outside the box, and that the packaged products have a predictable shelf life depending on the nature and quantity of the gas contained.
  • Inviolability means that the combined forms of the bottom and the lid do not allow them to be separated simply, except for leaving obvious traces of said separation, having the effect in particular of greatly reducing the probability of subsequent sale of the box.
  • said two lateral surfaces are in frictional contact at least over most of their height.
  • these surfaces are also perfectly vertical, that is to say perpendicular to the surfaces forming the central parts of the bottom and of the cover. According to a variant, these surfaces are inclined, widening upwards, ie towards the bottom opening at the bottom-cover contacts.
  • the lateral surfaces of the bottom participating in the generally vertical-looking means are delimited at their lower part by a generally horizontal-looking shoulder.
  • This shoulder can be continuous over the entire periphery of the side wall, or, according to a variant, adapt to variations in the shape of the side walls of the bottom.
  • said shoulder may reflect the existence of vertical ribs intended for stiffening the bottom, particularly important if the side walls of vertical appearance of this bottom are high.
  • the shoulder is then discontinuous, and preferably consists of the horizontal upper sections of the vertical stiffening ribs of the bottom.
  • the means of general horizontal appearance which operate in close combination with the previous ones, mainly consist of a groove offset towards the outside of the volume of the bottom, at the periphery of an annular surface, cooperating with a fold of an equally horizontal and annular surface of the cover delimiting towards the outside the bowl of the cover.
  • the diameter of said fold is slightly greater than the diameter of the inner periphery of said groove, so that said fold closes elastically in said groove without then being able to escape from it.
  • the upper edge of the bottom has successive folds with superimposed hollow beads, peripherally offset towards the outside, of which the one which is located inside constitutes said groove in which the outside fold of the cover is inserted.
  • the upper bead or fold located higher than the bottom has an internal surface, that is to say which gives on the interior of the container, rounded, so that the external fold of the cover is guided flexibly by this surface, which acts as a sort of cam path deforming said external fold and allowing it to be clipped into the internal groove via said rounded connection surface.
  • the successive folds of the bottom edge create at the same time a stiffening and gripping edge of the box.
  • the last of these folds, outside and at the periphery of the bottom, constituting an edge for stiffening and gripping the box comprises a tab oriented towards the outside and substantially horizontal, provided transversely over its entire width. an incision creating two tear-off tabs at the bottom edge, intended to allow the opening of the box.
  • This incision extends via the other folds of the bottom, that is to say the upper bead and the groove made horizontally outwards from the volume of the box, up to the horizontal annular surface shifting the upper edge of the bottom.
  • the upper bead comprises a localized interruption at the level of the passage of the incision.
  • This tab (3) comprises a transverse incision (4) which crosses the entire width of said tab (3) and extends under the cover (part shown in thin line) in the beads and peripheral folds ensuring the functions of hermeticity and inviolability. This will be shown in more detail later.
  • FIG. 1 also shows the existence of an interruption (5) in the upper bead of the rim (2), as well as of ribs (6) which are parallel, substantially vertical, and acting as stiffening beams. They act against bending stresses exerted parallel to their axial direction.
  • Figure 2 gives a precise idea of a preferred embodiment of the bottom, the profile, especially at the upper edge, appears very clearly.
  • the peripheral side wall (10) rises towards a shoulder (11) beyond which extends a zone (12) of vertical appearance leading to a more complex curve.
  • This zone (12) is the peripheral lateral surface participating in the vertical-looking means intended primarily to ensure the hermeticity of the container, in combination with an equivalent surface of the cover, as will be seen later.
  • the horizontal peripheral zone (13), of the horizontal flange type opens onto a groove (14) formed horizontally towards the outside of the volume of the box, whose role is predominant during the clipping of the cover (C).
  • This groove (14) is connected via a connecting surface (15) rounded to an upper peripheral bead (16) whose peripheral transverse end opens onto the external edge (1) of stiffening and gripping.
  • this external edge (1) not only has a stiffening function, but also serves to open the cover (C) / bottom (F) connection, hence a lack of uniformity in its dimensioning.
  • the partial section of the bottom (F) makes it possible to properly measure the offset between the functional upper rim (2) and the main body of the bottom (F).
  • the height of the side walls (10) is large compared to that of the zone (12) integrating the vertical means leading to the hermeticity.
  • FIG. 3 shows the complementary profile of the cover, intended to be inserted by clipping into the bottom (F), according to a nesting appearing in FIG. 4.
  • the cover comprises a flat surface (20) delimited by a substantially horizontal peripheral wall (21), the assembly forming the bowl.
  • the peripheral wall (21) participates in the vertical-looking means intended in the first place to ensure airtightness.
  • This wall (21) is linked to the corresponding wall (12) of the bottom by means of a friction contact, and it is limited in its movement by the shoulder (11) of said bottom (F), forming an axial stop.
  • the wall (21) is extended by a zone (22) of substantially horizontal appearance and a groove (23) forming the end of the external periphery.
  • these last two elements constitute the part of the horizontal-looking means attached to the cover.
  • these means are contiguous to the vertical-looking means, as appears from the general definition, for which there is no differentiation between the bottom (F) and the cover (C) .
  • the peripheral groove (23) represents a possible configuration of the above-mentioned external fold, the opening of which is oriented upwards in the closed position of the box.
  • the operation is as follows: when the box is closed, the lower surface of said groove (23) rests initially on the upper part of the upper peripheral bead (16), due to the difference between the outer diameter of the cover (C), on the one hand, and the inner diameter of said bead (16), on the other hand.
  • the latter has an internal diameter necessarily smaller than the diameter of the groove (14), because of the function thereof.
  • the outer diameter of the cover (C) is slightly greater than that of said groove (14).
  • FIGS. 5 and 6 an additional device has been provided for making the opening, and warning at the same time when a first opening has been made.
  • This is the transverse slot (4) made in the tab (3) projecting from the stiffening edge (1).
  • These figures show an enlargement of the area in which said slot (4) is located. In one case ( Figure 5), this slot is at rest, for example before a first opening, while in the second case ( Figure 6), the slot is being manipulated and one of the legs is moving compared to each other.
  • FIG. 5 shows that said slot (4) goes beyond the upper peripheral bead (16), and even beyond the peripheral groove (14) at the bottom, otherwise it would not be effective at 'opening.
  • Said bead (16) has an interruption (5) beyond which the slot, actually covered by the cover (C) is shown in thin lines.
  • the opening mechanism makes it possible to lift one of the legs (see the arrows in bold line) so as to deform the bottom (F).
  • This deformation in turn exerts a stress on the cover (C) and deforms it enough to expel it from the groove (14) of the bottom (F).
  • the rest of the periphery of said cover is easy to remove from said groove (14).
  • the zone in which the expulsion takes place corresponds to that which is at the level of the leg not raised, the bottom portion of which remains in principle free from any deformation, unlike the cover, the uniqueness of which propagates the deformation of on either side of the line of the incision.
  • the incision (4) comprises points for welding the tabs together (not shown), attesting to the existence or absence of an attempt to open the container. When these points are broken, there was necessarily an attempt to open the box of the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)

Abstract

The food packaging box comprises a bottom (F) having a lateral peripheral wall (10) which is widened along an edge (2) external to the wall surface. The edge has a groove (3) forming a protuberance in the edge plane. A cover (C) comprising a bowl clips onto the groove in the bottom to enclose the contents. A transverse incision (4) in the groove passes through all the width of the groove which is extended under the cover in peripherally folded bulges. These ensure hermetic sealing and evidence of non tampering. There is an interruption (5) in the edge upper bulge and parallel vertical ribs (5) acting as rigidifying beams. Vertical sealing is effected by the external lateral surface of the cover and the internal lateral surface of the bottom upper portion. These two surfaces are in friction contact along the largest part of their height. Placing the cover on the box simultaneously engages the vertical sealing and the horizontal security.

Description

La présente invention concerne une boîte pour le conditionnement de produits alimentaires comportant des moyens pour assurer à la fois l'herméticité et l'inviolabilité de la boîte lorsqu'elle est fermée.The present invention relates to a box for packaging food products comprising means for ensuring both the hermeticity and the inviolability of the box when it is closed.

Cette seconde fonction sert notamment à garantir à l'utilisateur final qu'il est le premier à ouvrir la boîte. Aucun doute n'est par conséquent permis sur la fraîcheur des produits contenus dans l'emballage, qui se présentent audit utilisateur dans l'ambiance notamment gazeuse telle qu'elle existait originellement dans la boîte.This second function is used in particular to guarantee the end user that he is the first to open the box. There is therefore no doubt as to the freshness of the products contained in the packaging, which present themselves to said user in the particularly gaseous atmosphere as it originally existed in the box.

Alors qu'il existe de multiples boîtes comportant des systèmes d'herméticité, rien n'existe pour le moment pour assurer a l'utilisateur que des manipulations précédentes n'ont pas altéré la qualité du produit alimentaire placé dans le récipient. Il est en effet possible d'ouvrir et de fermer ces boîtes sans que ces manipulations soient apparentes, d'où l'incertitude dans laquelle est tenu le consommateur au moment où il achète le produit ainsi emballé.While there are multiple boxes with airtight systems, nothing exists at the moment to assure the user that previous handling has not altered the quality of the food product placed in the container. It is indeed possible to open and close these boxes without these manipulations being apparent, hence the uncertainty in which the consumer is held when he purchases the product thus packaged.

Pourtant, une telle certitude, si elle peut être donnée, constitue un atout très apprécié par le consommateur, qui bénéficie d'une plus grande garantie de qualité. En outre, dans la boîte de l'invention, l'inviolabilité, en se combinant avec l'herméticité, améliore les caractéristiques de cette dernière, aboutissant à un produit de conditionnement particulièrement performant.However, such certainty, if it can be given, constitutes an asset much appreciated by the consumer, who benefits from a greater guarantee of quality. In addition, in the box of the invention, the inviolability, by combining with the hermeticity, improves the characteristics of the latter, resulting in a particularly effective packaging product.

A ces effets, la boîte pour le conditionnement de produits alimentaires de l'invention comporte un fond présentant une paroi latérale périphérique s'évasant suivant un rebord décalé vers l'extérieur par rapport à la surface de ladite paroi et par rapport au contenant proprement dit, et un couvercle comprenant une cuvette venant s'adapter à ce fond pour y enfermer le produit à conditionner. Selon une caractéristique principale, le rebord et le couvercle de la boîte de l'invention comportent des moyens coopérant entre eux pour assurer simultanément l'herméticité et l'inviolabilité de la boîte fermée.For these purposes, the box for packaging food products of the invention has a bottom having a wall lateral peripheral flaring along a rim offset towards the outside with respect to the surface of said wall and with respect to the container proper, and a cover comprising a bowl coming to adapt to this bottom to enclose the product to be packaged therein. According to a main characteristic, the rim and the cover of the box of the invention include means cooperating with each other to simultaneously ensure the hermeticity and the inviolability of the closed box.

L'herméticité signifie qu'il n'y a pas d'échanges entre les atmosphères interne et externe à la boîte, et que les produits conditionnés ont une durée de conservation prévisible en fonction de la nature et de la quantité du gaz confiné. L'inviolabilité signifie que les formes conjuguées du fond et du couvercle ne permettent pas de les séparer simplement, sauf à laisser des traces manifestes de ladite séparation, ayant notamment pour effet de réduire fortement la probabilité de vente ultérieure de la boîte.Airtightness means that there is no exchange between the atmospheres inside and outside the box, and that the packaged products have a predictable shelf life depending on the nature and quantity of the gas contained. Inviolability means that the combined forms of the bottom and the lid do not allow them to be separated simply, except for leaving obvious traces of said separation, having the effect in particular of greatly reducing the probability of subsequent sale of the box.

Ces formes conjuguées sont notamment caractérisées en ce que, sur ledit rebord et sur le ledit couvercle, lesdits moyens coopérant entre eux sont contigus et orientés, sur une première portion, dans une direction générale verticale, puis, sur une seconde portion, dans une direction générale horizontale, la mise en place du couvercle sur le fond déterminant simultanément la coopération des moyens d'allure générale verticale pour assurer l'herméticité de la fermeture et la coopération des moyens d'allure générale horizontale pour assurer l'inviolabilité de la fermeture, les moyens d'allure générale verticale étant constitués par la surface latérale extérieure de ladite cuvette du couvercle et la surface latérale intérieure de la portion supérieure dudit fond, alors que les moyens d'allure générale horizontale sont constitués par une gorge pratiquée horizontalement vers l'extérieur du volume de la boîte, au-dessus de la périphérie d'une surface horizontale annulaire décalant vers l'extérieur le rebord supérieur dudit fond, et par au moins un repli extérieur d'une surface horizontale annulaire délimitant vers l'extérieur ladite cuvette du couvercle.These combined forms are in particular characterized in that, on said flange and on said cover, said means cooperating with each other are contiguous and oriented, on a first portion, in a generally vertical direction, then, on a second portion, in a direction general horizontal, the positioning of the cover on the bottom simultaneously determining the cooperation of the means of general vertical appearance to ensure the hermeticity of the closure and the cooperation of the means of general horizontal appearance to ensure the inviolability of the closure, the means of general vertical appearance being constituted by the external lateral surface of said bowl of the cover and the internal lateral surface of the upper portion of said bottom, while the means of general horizontal appearance consist of a groove made horizontally towards the outside the volume of the box, above the periphery of a horizontal surface ntale annulaire shifting outward the upper edge of said bottom, and by at least one outer fold of an annular horizontal surface delimiting outward said bowl of the cover.

Pour ce qui concerne les moyens d'allure générale verticale, lesdites deux surfaces latérales sont en contact à frottement au moins sur la plus grande partie de leur hauteur.As regards the means of general vertical appearance, said two lateral surfaces are in frictional contact at least over most of their height.

Selon une configuration possible, elles sont au surplus parfaitement verticales, c'est à dire perpendiculaires aux surfaces formant les parties centrales du fond et du couvercle. Selon une variante, ces surfaces sont inclinées, s'évasant vers le haut, c'est à dire vers l'ouverture du fond au niveau des contacts fond-couvercle.According to a possible configuration, they are also perfectly vertical, that is to say perpendicular to the surfaces forming the central parts of the bottom and of the cover. According to a variant, these surfaces are inclined, widening upwards, ie towards the bottom opening at the bottom-cover contacts.

Dans l'ensemble de ce texte, la terminologie utilisée confère à "fond" le sens suivant : il s'agit de l'ensemble de la partie inférieure du boîtier, sans le couvercle. Le fond comprend donc également les côtés latéraux remontant vers l'ouverture, ainsi que les rebords dont les formes sont destinées à coopérer avec les bordures du couvercle.Throughout this text, the terminology used gives "background" the following meaning: it is the whole of the lower part of the case, without the cover. The bottom therefore also includes the lateral sides rising towards the opening, as well as the flanges whose shapes are intended to cooperate with the edges of the cover.

Les surfaces latérales du fond participant aux moyens d'allure générale verticale sont délimitées à leur partie inférieure par un épaulement d'allure générale horizontale. Cet épaulement peut être continu sur toute la périphérie de la paroi latérale, ou, selon une variante, s'adapter à des variations de forme des parois latérales du fond. Dans ce second cas, ledit épaulement peut refléter l'existence de nervures verticales destinées à la rigidification du fond, particulièrement importantes si les parois latérales d'allure verticale de ce fond sont hautes.The lateral surfaces of the bottom participating in the generally vertical-looking means are delimited at their lower part by a generally horizontal-looking shoulder. This shoulder can be continuous over the entire periphery of the side wall, or, according to a variant, adapt to variations in the shape of the side walls of the bottom. In this second case, said shoulder may reflect the existence of vertical ribs intended for stiffening the bottom, particularly important if the side walls of vertical appearance of this bottom are high.

L'épaulement est alors discontinu, et constitué de préférence par les sections supérieures horizontales des nervures verticales de rigidification du fond.The shoulder is then discontinuous, and preferably consists of the horizontal upper sections of the vertical stiffening ribs of the bottom.

Comme on l'a mentionné, les moyens d'allure générale horizontale qui fonctionnent en étroite combinaison avec les précédents, sont principalement constitués d'une gorge décalée vers l'extérieur du volume du fond, à la périphérie d'une surface annulaire, coopérant avec un repli d'une surface également horizontale et annulaire du couvercle délimitant vers l'extérieur la cuvette du couvercle. Dans cette configuration, le diamètre dudit repli est légèrement supérieur au diamètre de la périphérie intérieure de ladite gorge, de manière que ledit repli vienne se clipser élastiquement dans ladite gorge sans pouvoir ensuite s'en échapper.As mentioned, the means of general horizontal appearance which operate in close combination with the previous ones, mainly consist of a groove offset towards the outside of the volume of the bottom, at the periphery of an annular surface, cooperating with a fold of an equally horizontal and annular surface of the cover delimiting towards the outside the bowl of the cover. In this configuration, the diameter of said fold is slightly greater than the diameter of the inner periphery of said groove, so that said fold closes elastically in said groove without then being able to escape from it.

En réalité, le rebord supérieur du fond comporte des replis successifs avec des bourrelets creux superposés, périphériquement décalés vers l'extérieur, dont celui qui est situé à l'intérieur constitue ladite gorge dans laquelle vient s'insérer le repli extérieur du couvercle.In reality, the upper edge of the bottom has successive folds with superimposed hollow beads, peripherally offset towards the outside, of which the one which is located inside constitutes said groove in which the outside fold of the cover is inserted.

Le bourrelet supérieur ou repli situé le plus haut par rapport au fond comporte une surface interne, c'est à dire qui donne sur l'intérieur du contenant, arrondie, de telle sorte que le repli extérieur du couvercle soit guidé souplement par cette surface, qui agit comme une sorte de trajet-came déformant ledit repli extérieur et lui permettant de se clipser dans la gorge interne via ladite surface de raccordement arrondie.The upper bead or fold located higher than the bottom has an internal surface, that is to say which gives on the interior of the container, rounded, so that the external fold of the cover is guided flexibly by this surface, which acts as a sort of cam path deforming said external fold and allowing it to be clipped into the internal groove via said rounded connection surface.

Ce guidage est rendu possible par la forme du repli ou bourrelet périphérique extérieur du couvercle, formant une gorge dont l'ouverture est orientée vers le haut en position fermée de la boîte, c'est à dire dont la surface inférieure est arrondie et coopère avec ledit trajet-came au moment de l'insertion du couvercle.This guidance is made possible by the shape of the fold or peripheral peripheral bead of the cover, forming a groove whose opening is oriented upwards in the closed position of the box, that is to say whose bottom surface is rounded and cooperates with said cam path when the cover is inserted.

Les replis successifs du rebord du fond créent par la même occasion un bord de rigidification et de préhension de la boîte. En particulier, le dernier de ces replis, à l'extérieur et à la périphérie du fond, constituant un bord de rigidification et de préhension de la boîte, comporte un onglet orienté vers l'extérieur et sensiblement horizontal, muni transversalement sur toute sa largeur d'une incision créant deux pattes d'amorce de déchirure du rebord du fond, destinées à permettre l'ouverture de la boîte.The successive folds of the bottom edge create at the same time a stiffening and gripping edge of the box. In particular, the last of these folds, outside and at the periphery of the bottom, constituting an edge for stiffening and gripping the box, comprises a tab oriented towards the outside and substantially horizontal, provided transversely over its entire width. an incision creating two tear-off tabs at the bottom edge, intended to allow the opening of the box.

Cette incision, pour plus de commodité, s'étend via les autres replis du fond, c'est à dire le bourrelet supérieur et la gorge pratiquée horizontalement vers l'extérieur du volume de la boîte, jusqu'à la surface annulaire horizontale décalant le rebord supérieur du fond.This incision, for convenience, extends via the other folds of the bottom, that is to say the upper bead and the groove made horizontally outwards from the volume of the box, up to the horizontal annular surface shifting the upper edge of the bottom.

Selon une configuration préférentielle, le bourrelet supérieur comporte une interruption localisée au niveau du passage de l'incision.According to a preferred configuration, the upper bead comprises a localized interruption at the level of the passage of the incision.

On va maintenant décrire l'invention plus en détail, notamment en se référant aux figures présentées en annexe, pour lesquelles :

  • La figure 1 est une vue en perspective de l'ensemble de la boîte avec son couvercle,
  • La figure 2 est une coupe partielle du fond,
  • La figure 3 représente une coupe partielle du couvercle,
  • La figure 4 réunit les éléments des deux figures précédentes en une coupe complète du fond avec le couvercle,
  • La figure 5 est un détail agrandi de l'incision permettant l'extraction du couvercle, et
  • La figure 6 représente la même vue en cours d'ouverture.
The invention will now be described in more detail, in particular with reference to the figures presented in the annex, for which:
  • FIG. 1 is a perspective view of the whole of the box with its cover,
  • FIG. 2 is a partial section of the bottom,
  • FIG. 3 represents a partial section of the cover,
  • FIG. 4 brings together the elements of the two preceding figures in a complete section of the bottom with the cover,
  • FIG. 5 is an enlarged detail of the incision allowing the extraction of the cover, and
  • Figure 6 shows the same view during opening.

La figure 1 fait apparaître la totalité de la boîte, avec un fond (F) et son couvercle (C) clipsé dans une gorge du fond (F). Sans entrer dans les détails, cette figure permet de localiser le bord (1) de rigidification et de préhension de la boîte, situé en périphérie du rebord décalé vers l'extérieur (2), et doté d'un onglet (3) formant une protubérance dans le plan du bord (1).Figure 1 shows the entire box, with a bottom (F) and its cover (C) clipped into a groove in the bottom (F). Without going into details, this figure makes it possible to locate the edge (1) of stiffening and gripping of the box, located on the periphery of the rim offset towards the outside (2), and provided with a tab (3) forming a protrusion in the plane of the edge (1).

Cet onglet (3) comporte une incision (4) transversale qui traverse toute la largeur dudit onglet (3) et se prolonge sous le couvercle (partie figurée en trait fin) dans les bourrelets et replis périphériques assurant les fonctions d'herméticité et d'inviolabilité. Ceci sera montré d'une manière plus détaillée dans la suite.This tab (3) comprises a transverse incision (4) which crosses the entire width of said tab (3) and extends under the cover (part shown in thin line) in the beads and peripheral folds ensuring the functions of hermeticity and inviolability. This will be shown in more detail later.

Cette figure 1 montre encore l'existence d'une interruption (5) dans le bourrelet supérieur du rebord (2), ainsi que de nervures (6) parallèles, sensiblement verticales, et faisant office de poutrelles de rigidification . Elles agissent contre des contraintes de flexion exercées parallèlement à leur direction axiale.This FIG. 1 also shows the existence of an interruption (5) in the upper bead of the rim (2), as well as of ribs (6) which are parallel, substantially vertical, and acting as stiffening beams. They act against bending stresses exerted parallel to their axial direction.

La figure 2 donne une idée précise d'une réalisation préférentielle du fond, dont le profil, notamment au niveau du rebord supérieur, apparaît très clairement. La paroi latérale (10) périphérique s'élève vers un épaulement (11) au-delà duquel s'étend une zone (12) d'allure verticale débouchant sur une courbe plus complexe. Cette zone (12) est la surface latérale périphérique participant aux moyens d'allure verticale destinés au premier chef à assurer l'herméticité du récipient, en combinaison avec une surface équivalente du couvercle, comme on le verra par la suite.Figure 2 gives a precise idea of a preferred embodiment of the bottom, the profile, especially at the upper edge, appears very clearly. The peripheral side wall (10) rises towards a shoulder (11) beyond which extends a zone (12) of vertical appearance leading to a more complex curve. This zone (12) is the peripheral lateral surface participating in the vertical-looking means intended primarily to ensure the hermeticity of the container, in combination with an equivalent surface of the cover, as will be seen later.

En remontant encore le long du profil, on aboutit à une partie commençant par une portion horizontale (13) ayant pour effet de décaler les éléments supérieurs constituant le rebord supérieur (2) par rapport à la paroi latérale (10) ou encore par rapport au volume du fond (F) proprement dit. Il s'agit des moyens contigus aux premiers et orientés selon une direction générale horizontale.Going up again along the profile, we arrive at a part starting with a horizontal portion (13) having the effect of shifting the upper elements constituting the upper rim (2) relative to the side wall (10) or also relative to the bottom volume (F) proper. These are the means adjoining the first and oriented in a general horizontal direction.

Plus précisément, la zone périphérique (13) horizontale, du type collerette horizontale, débouche sur une gorge (14) formée horizontalement vers l'extérieur du volume de la boîte, dont le rôle est prépondérant lors du clipsage du couvercle (C). Cette gorge (14) est reliée via une surface de raccordement (15) arrondie à un bourrelet périphérique (16) supérieur dont l'extrémité transversale périphérique débouche sur le bord externe (1) de rigidification et de préhension.More precisely, the horizontal peripheral zone (13), of the horizontal flange type, opens onto a groove (14) formed horizontally towards the outside of the volume of the box, whose role is predominant during the clipping of the cover (C). This groove (14) is connected via a connecting surface (15) rounded to an upper peripheral bead (16) whose peripheral transverse end opens onto the external edge (1) of stiffening and gripping.

Comme on l'a vu en figure 1, ce bord externe (1) n'a pas seulement une fonction de rigidification, mais sert également à l'ouverture de la liaison couvercle (C) / fond (F), d'où une absence d'uniformité dans son dimensionnement. La coupe partielle du fond (F) permet de bien mesurer le décalage entre le rebord supérieur (2) fonctionnel et le corps principal du fond (F). Dans cette configuration particulière, la hauteur des parois latérales (10) est importante par rapport a celle de la zone (12) intégrant le moyen vertical aboutissant à l'herméticité.As seen in FIG. 1, this external edge (1) not only has a stiffening function, but also serves to open the cover (C) / bottom (F) connection, hence a lack of uniformity in its dimensioning. The partial section of the bottom (F) makes it possible to properly measure the offset between the functional upper rim (2) and the main body of the bottom (F). In this particular configuration, the height of the side walls (10) is large compared to that of the zone (12) integrating the vertical means leading to the hermeticity.

La figure 3 montre le profil complémentaire du couvercle, destiné à s insérer par clipsage dans le fond (F), suivant une imbrication apparaissant en figure 4. Le couvercle comprend une surface plane (20) délimitée par une paroi périphérique (21) sensiblement horizontale, l'ensemble formant la cuvette.FIG. 3 shows the complementary profile of the cover, intended to be inserted by clipping into the bottom (F), according to a nesting appearing in FIG. 4. The cover comprises a flat surface (20) delimited by a substantially horizontal peripheral wall (21), the assembly forming the bowl.

La paroi périphérique (21) participe aux moyens d'allure verticale destinés à assurer en premier lieu l'herméticité. Cette paroi (21) est liée à la paroi correspondante (12) du fond au moyen d'un contact à frottement, et elle est limitée dans son mouvement par l'épaulement (11) dudit fond (F), formant butée axiale.The peripheral wall (21) participates in the vertical-looking means intended in the first place to ensure airtightness. This wall (21) is linked to the corresponding wall (12) of the bottom by means of a friction contact, and it is limited in its movement by the shoulder (11) of said bottom (F), forming an axial stop.

En suivant également le profil du couvercle (C) vers l'extérieur, la paroi (21) se prolonge par une zone (22) d'allure sensiblement horizontale et une gorge (23) formant l'extrémité de la périphérie externe. Ces deux derniers éléments constituent la partie des moyens d'allure horizontale attachée au couvercle. Dans ce cas du couvercle également, ces moyens sont contigus aux moyens d'allure verticale, ainsi qu'il ressort de la définition générale, pour laquelle il n'y a pas de différenciation entre le fond (F) et le couvercle (C).Also following the profile of the cover (C) towards the outside, the wall (21) is extended by a zone (22) of substantially horizontal appearance and a groove (23) forming the end of the external periphery. These last two elements constitute the part of the horizontal-looking means attached to the cover. In this case of the cover also, these means are contiguous to the vertical-looking means, as appears from the general definition, for which there is no differentiation between the bottom (F) and the cover (C) .

La gorge périphérique (23) représente une configuration possible du repli extérieur précité, dont l'ouverture est orientée vers le haut en position fermée de la boîte. Le fonctionnement est le suivant : lorsque l'on procède à la fermeture de la boîte, la surface inférieure de ladite gorge (23) repose dans un premier temps sur la partie supérieure du bourrelet périphérique supérieur (16), du fait de la différence entre le diamètre externe du couvercle (C), d'une part, et le diamètre interne dudit bourrelet (16), d'autre part.The peripheral groove (23) represents a possible configuration of the above-mentioned external fold, the opening of which is oriented upwards in the closed position of the box. The operation is as follows: when the box is closed, the lower surface of said groove (23) rests initially on the upper part of the upper peripheral bead (16), due to the difference between the outer diameter of the cover (C), on the one hand, and the inner diameter of said bead (16), on the other hand.

En effet, ce dernier présente un diamètre interne nécessairement inférieur au diamètre de la gorge (14), à cause de la fonction de celle-ci. Or, le diamètre externe du couvercle (C) est légèrement supérieur à celui de ladite gorge (14). D'où la possibilité de position de repos du couvercle (C) sur le bourrelet (16), avant toute contrainte d'enfoncement.Indeed, the latter has an internal diameter necessarily smaller than the diameter of the groove (14), because of the function thereof. However, the outer diameter of the cover (C) is slightly greater than that of said groove (14). Hence the possibility of the rest position of the cover (C) on the bead (16), before any sinking constraint.

Lorsqu'on initie l'insertion du couvercle (C), une double déformation se produit : d'une part, celle de la gorge périphérique externe (23) du couvercle, dont la forme est prévue pour qu'elle se déplace dans le sens inverse de celui de l'enfoncement, et d'autre part celle du bourrelet (16). Celui-ci est, comme on l'a déjà souligné, creux. Compte tenu de la forme donnée à la surface de raccordement (15), ce bourrelet a tendance à se déformer radialement, et à laisser par conséquent passer le couvercle, lui même déformé de manière à perdre radialement de la surface.When the insertion of the cover (C) is initiated, a double deformation occurs: on the one hand, that of the external peripheral groove (23) of the cover, the shape of which is provided for it to move in the direction opposite to that of the insertion, and on the other hand that of the bead (16). This one is, as already underlined, hollow. Given the shape given to the connection surface (15), this bead tends to deform radially, and consequently to let the cover pass, itself deformed so as to lose radially from the surface.

Lorsque le couvercle (C) dépasse le bourrelet (16) et sa surface de raccordement (15) à la gorge (14), il se déforme élastiquement dans le sens d'un retour à sa forme initiale : le couvercle est clipsé. A ce stade, il n'y a aucune prise externe permettant de l'enlever par déclipsage : le récipient est donc inviolable, et son ouverture pratiquement impossible.When the cover (C) exceeds the bead (16) and its connection surface (15) to the groove (14), it elastically deforms in the direction a return to its original shape: the cover is clipped. At this stage, there is no external socket allowing to remove it by unclipping: the container is therefore tamper-proof, and its opening practically impossible.

C'est pourquoi, comme le montrent les figures 5 et 6, on a prévu un dispositif additionnel permettant de réaliser l'ouverture, et avertissant dans le même temps lorsqu'une première ouverture a été effectuée. Il s'agit de la fente transversale (4) pratiquée dans l'onglet (3) dépassant du bord (1) rigidifiant. Ces figures montrent un agrandissement de la zone dans laquelle ladite fente (4) est localisée. Dans un cas (figure 5), cette fente est au repos, par exemple avant une première ouverture, alors que dans le second cas (figure 6), la fente est en train d'être manipulée et l'une des pattes est en mouvement par rapport à l'autre.This is why, as shown in FIGS. 5 and 6, an additional device has been provided for making the opening, and warning at the same time when a first opening has been made. This is the transverse slot (4) made in the tab (3) projecting from the stiffening edge (1). These figures show an enlargement of the area in which said slot (4) is located. In one case (Figure 5), this slot is at rest, for example before a first opening, while in the second case (Figure 6), the slot is being manipulated and one of the legs is moving compared to each other.

Le détail de la figure 5 montre que ladite fente (4) va au-delà du bourrelet périphérique supérieur (16), et même au-delà de la gorge périphérique (14) du fond, faute de quoi elle ne serait pas efficace à l'ouverture. Ledit bourrelet (16) comporte une interruption (5) au-delà de laquelle la fente, recouverte en réalité par le couvercle (C) est figurée en trait fin.The detail in FIG. 5 shows that said slot (4) goes beyond the upper peripheral bead (16), and even beyond the peripheral groove (14) at the bottom, otherwise it would not be effective at 'opening. Said bead (16) has an interruption (5) beyond which the slot, actually covered by the cover (C) is shown in thin lines.

Le mécanisme d'ouverture, apparaissant plus particulièrement en figure 6, permet de soulever l'une des pattes (voir les flèches en trait gras) de manière à déformer le fond (F). Cette déformation exerce à son tour une contrainte sur le couvercle (C) et le déforme suffisamment pour l'expulser de la gorge (14) du fond (F). Lorsqu'il est expulsé d'une zone, le reste de la périphérie dudit couvercle est aisé à retirer de ladite gorge (14). La zone dans laquelle a lieu l'expulsion correspond à celle qui est au niveau de la patte non soulevée, dont la portion de fond reste en principe indemne de toute déformation, à l'inverse du couvercle, dont l'unicité propage la déformation de part et d'autre du trait de l'incision.The opening mechanism, appearing more particularly in FIG. 6, makes it possible to lift one of the legs (see the arrows in bold line) so as to deform the bottom (F). This deformation in turn exerts a stress on the cover (C) and deforms it enough to expel it from the groove (14) of the bottom (F). When expelled from an area, the rest of the periphery of said cover is easy to remove from said groove (14). The zone in which the expulsion takes place corresponds to that which is at the level of the leg not raised, the bottom portion of which remains in principle free from any deformation, unlike the cover, the uniqueness of which propagates the deformation of on either side of the line of the incision.

Selon une configuration préférentielle, l'incision (4) comporte des points de soudure des pattes entre elles (non représentés), attestant de l'existence ou de l'absence d'une tentative d'ouverture du récipient. Lorsque ces points sont rompus, il y a eu obligatoirement tentative d'ouverture de la boîte de l'invention.According to a preferred configuration, the incision (4) comprises points for welding the tabs together (not shown), attesting to the existence or absence of an attempt to open the container. When these points are broken, there was necessarily an attempt to open the box of the invention.

La description ci-dessus ne doit pas être interprétée comme étant limitative de l'invention, mais comme un exemple de réalisation préférentielle de celle-ci. Des variantes ou modifications, si elles entrent dans le cadre des revendications annexées, font partie de l'invention.The above description should not be interpreted as limiting the invention, but as an example of a preferred embodiment thereof. Variants or modifications, if they fall within the scope of the appended claims, form part of the invention.

Claims (14)

  1. Can for packaging food products, comprising a base (F) having a peripheral lateral wall (10) widening out into a rim (2) offset outwards with respect to the surface of the said wall (10), and a lid (C) comprising a dish matching this base to enclose a product to be packaged with a view to marketing it,
    characterized in that the said rim (2) and the said lid (C) comprise means cooperating with each other to ensure the air-tightness and at the same time the inviolability of the closed can, the said means being on the said lid (C) and the said rim (2) being contiguous and pointing, on a first portion, in a generally vertical direction, and then, on a second portion, pointing in a generally horizontal direction, the placing of the lid (C) on the base (F) determining simultaneously the cooperation of the means having a generally vertical appearance to ensure the leak-tightness of the closure and the cooperation of the means having a generally horizontal appearance ensuring the inviolability of the closure, the means having a generally vertical appearance consisting of an outer lateral surface (21) of the dish of the lid (C) and an inner lateral surface (12) of the upper portion of the said base (F), while the means having a generally horizontal appearance consist of a groove (14) made horizontally outwards from the volume of the can, above the periphery of an annular horizontal surface (13) offsetting the upper rim (2) of the said base outwards, and consisting of at least one outer fold (23) of an annular horizontal surface (22) delimiting the said dish of the cover (C) outwards.
  2. Can according to claim 1, characterized in that the two lateral surfaces (12, 21) are in a friction contact at least over the greater part of their height.
  3. Can according to claim 2, characterized in that the said lateral surfaces (12, 21) in contact are vertical.
  4. Can according to claim 2, characterized in that the said lateral surfaces (12, 21) in contact are inclined, widening out upwards.
  5. Can according to one of claims 2 to 4, characterized in that the lateral surface (12) of the base is delimited downwards by a shoulder (11) having a generally horizontal appearance.
  6. Can according to claim 5, characterized in that the said shoulder (11) is continuous over all the periphery of the lateral wall (10) of the base.
  7. Can according to claim 5, characterized in that the said shoulder (11) is discontinuous, and preferably consists of horizontal upper sections of vertical ribs (6) stiffening the base (F).
  8. Can according to any of claims 1 to 7, characterized in that the diameter of the fold (23) is slightly greater than the diameter of the inner periphery of the said groove (14), so that the said fold (23) is clipped elastically in the said groove (14) without then being able to escape from it.
  9. Can according to any of claims 1 to 8, characterized in that, beyond the said groove (14), the periphery of the said base (F) comprises successive folds creating a rim (2) for stiffening the can and by which the can may be grasped.
  10. Can according to claim 9, characterized in that the said successive folds comprise an upper hollow flange (16) situated on the periphery of the said groove (14), and of which the connecting surface (15) to the latter is rounded.
  11. Can according to either of claims 9 or 10, characterized in that, over a fraction of its length, the last of the said successive folds (1) comprises outwards a substantially horizontal slot (3) comprising horizontally over all its width an incision (4) creating two lugs for starting a tear in the rim (2) of the base, designed to enable the can to be opened.
  12. Can according to claim 11, characterized in that the said incision (4) extends via the successive folds of the base, i.e. the upper flange (16) and the groove (14), to the horizontal annular surface (13) offsetting the upper rim (2) of the base (F).
  13. Can according to claim 12, characterized in that the upper flange (16) comprises a gap (5) localised where the incision (4) passes.
  14. Can according to claims 1 to 13, characterized in that the said outer fold (23) of the lid forms a groove at the periphery of the said horizontal annular surface (22) of which the opening is directed upwards into the groove (14) of the base (F), so as to self-lock there elastically after having cooperated, at the moment the lid (C) is inserted, with the rounded surface (15) connecting the upper flange (16) to the groove of the base (14).
EP95440037A 1995-07-03 1995-07-03 Tamper proof hermetically-sealed box Expired - Lifetime EP0752374B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP95440037A EP0752374B1 (en) 1995-07-03 1995-07-03 Tamper proof hermetically-sealed box
AT95440037T ATE161502T1 (en) 1995-07-03 1995-07-03 ORIGINALITY ASSURANCED AND HERMETICALLY SEALED CONTAINER
DE69501329T DE69501329T2 (en) 1995-07-03 1995-07-03 Tamper-evident and hermetically sealed container
ES95440037T ES2110825T3 (en) 1995-07-03 1995-07-03 HERMETIC AND INVIOLABLE BOX.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95440037A EP0752374B1 (en) 1995-07-03 1995-07-03 Tamper proof hermetically-sealed box

Publications (2)

Publication Number Publication Date
EP0752374A1 EP0752374A1 (en) 1997-01-08
EP0752374B1 true EP0752374B1 (en) 1997-12-29

Family

ID=8221591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95440037A Expired - Lifetime EP0752374B1 (en) 1995-07-03 1995-07-03 Tamper proof hermetically-sealed box

Country Status (4)

Country Link
EP (1) EP0752374B1 (en)
AT (1) ATE161502T1 (en)
DE (1) DE69501329T2 (en)
ES (1) ES2110825T3 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8083089B2 (en) 2005-07-13 2011-12-27 Pwp Industries Inc. Versatile tamper-evident food container
US8088421B2 (en) 2005-10-25 2012-01-03 Kraft Foods Global Brands Llc Food package having a reclose mechanism
US8123064B2 (en) 2005-12-21 2012-02-28 Pwp Industries, Inc. Tamper evident container having a pull-open section
US8127961B2 (en) 2007-11-10 2012-03-06 Pwp Industries Double ribbed secure container
US8146766B2 (en) 2009-04-29 2012-04-03 Pwp Industries Enhanced secure container
US8158174B2 (en) 2002-09-27 2012-04-17 Kraft Foods Global Brands Llc Container for food products
US8251242B2 (en) 2005-06-10 2012-08-28 Pwp Industries Tamper-evident container with extended band
US8360262B2 (en) 2005-12-21 2013-01-29 Pactiv Packaging Inc. Integrated food packaging system having a cup, a container, and a cover
US8911807B2 (en) 2009-11-06 2014-12-16 Kraft Foods Group Brands Llc Container for sliced and fluffed food products
US9493277B2 (en) 2008-10-28 2016-11-15 Polarpak Inc. Tamper evident container with frangible hinge
US10220985B2 (en) 2016-10-28 2019-03-05 Genpak, Llc Tamper-evident container with a tabbed hinge
US10889413B2 (en) 2016-10-28 2021-01-12 Genpak, Llc Tamper-evident container with a tab extending beyond a hinge
US10894635B2 (en) 2016-10-28 2021-01-19 Genpak, Llc Tamper-evident container with a wide tab extending beyond a hinge

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811638B1 (en) * 2000-07-13 2002-09-20 Tulipia INVIOLABILITY DEVICE FOR CONTAINER
US20080087669A2 (en) 2006-07-10 2008-04-17 Inline Plastics Corp. Tamper-resistant container with tamper-evident feature and method of forming same
PL1651532T3 (en) 2003-07-21 2009-02-27 Inline Plastics Corp Container with tamper-evident feature
US7073680B2 (en) 2003-07-21 2006-07-11 Inline Plastics Corporation Tamper-resistant container with tamper-evident feature and method of forming the same
GB2422142A (en) * 2005-01-13 2006-07-19 Sharp Interpack Ltd A tamper evident container and lid
US8251249B1 (en) 2005-06-24 2012-08-28 Pwp Industries Hangable tamper resistant packaging system
US7568589B2 (en) 2005-06-24 2009-08-04 Pwp Industries Edge-tearing tamper-evident container
CA2676604A1 (en) * 2008-08-29 2010-02-28 Par-Pak Ltd. Tamper-evident container
US10351310B2 (en) 2016-10-28 2019-07-16 Genpak, Llc Tamper-evident container with a bump near a tabbed hinge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK387083A (en) * 1983-08-24 1985-02-25 Erik Bock CONTAINER
IT1167345B (en) * 1983-10-18 1987-05-13 Unilever Nv CONTAINER WITH FACILITATED OPENING LID

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8158174B2 (en) 2002-09-27 2012-04-17 Kraft Foods Global Brands Llc Container for food products
US8251242B2 (en) 2005-06-10 2012-08-28 Pwp Industries Tamper-evident container with extended band
US8851315B2 (en) 2005-07-13 2014-10-07 Pactiv Packaging Inc. Versatile tamper-evident food container
US8083089B2 (en) 2005-07-13 2011-12-27 Pwp Industries Inc. Versatile tamper-evident food container
US8088421B2 (en) 2005-10-25 2012-01-03 Kraft Foods Global Brands Llc Food package having a reclose mechanism
US8468786B2 (en) 2005-10-25 2013-06-25 Kraft Foods Group Brands Llc Method for forming a reclose mechanism on a reclosable package
US8123064B2 (en) 2005-12-21 2012-02-28 Pwp Industries, Inc. Tamper evident container having a pull-open section
US8360262B2 (en) 2005-12-21 2013-01-29 Pactiv Packaging Inc. Integrated food packaging system having a cup, a container, and a cover
US8833589B2 (en) 2005-12-21 2014-09-16 Pactiv Packaging Inc. Enhanced tamper evident bowl with blocked tab
US8127961B2 (en) 2007-11-10 2012-03-06 Pwp Industries Double ribbed secure container
US9493277B2 (en) 2008-10-28 2016-11-15 Polarpak Inc. Tamper evident container with frangible hinge
US8146766B2 (en) 2009-04-29 2012-04-03 Pwp Industries Enhanced secure container
US8911807B2 (en) 2009-11-06 2014-12-16 Kraft Foods Group Brands Llc Container for sliced and fluffed food products
US10220985B2 (en) 2016-10-28 2019-03-05 Genpak, Llc Tamper-evident container with a tabbed hinge
US10889413B2 (en) 2016-10-28 2021-01-12 Genpak, Llc Tamper-evident container with a tab extending beyond a hinge
US10894635B2 (en) 2016-10-28 2021-01-19 Genpak, Llc Tamper-evident container with a wide tab extending beyond a hinge

Also Published As

Publication number Publication date
DE69501329D1 (en) 1998-02-05
ES2110825T3 (en) 1998-02-16
ATE161502T1 (en) 1998-01-15
EP0752374A1 (en) 1997-01-08
DE69501329T2 (en) 1998-08-06

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