EP0950614A1 - Hermetically sealable box formed by a container and a cover - Google Patents

Hermetically sealable box formed by a container and a cover Download PDF

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Publication number
EP0950614A1
EP0950614A1 EP99420090A EP99420090A EP0950614A1 EP 0950614 A1 EP0950614 A1 EP 0950614A1 EP 99420090 A EP99420090 A EP 99420090A EP 99420090 A EP99420090 A EP 99420090A EP 0950614 A1 EP0950614 A1 EP 0950614A1
Authority
EP
European Patent Office
Prior art keywords
cover
container
edge
box according
hermetic box
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.)
Ceased
Application number
EP99420090A
Other languages
German (de)
French (fr)
Inventor
Hervé David
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.)
Georges David SAS
Original Assignee
Georges David SAS
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 Georges David SAS filed Critical Georges David SAS
Publication of EP0950614A1 publication Critical patent/EP0950614A1/en
Ceased 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
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0218—Removable lids or covers without integral tamper element secured only by friction or gravity on both the inside and the outside of the mouth 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
    • B65D2543/00231—Overall construction of the lid made of several pieces
    • 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
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00305—Other
    • 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
    • B65D2543/00314—Combination, e.g. laminates, several different materials
    • 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
    • B65D2543/00518—Skirt
    • 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
    • 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
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00564—Contact between the container and the lid indirect by means of a gasket or similar intermediate ring
    • 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
    • B65D2543/00953—Sealing means
    • B65D2543/00962—Sealing means inserted
    • B65D2543/00972—Collars or rings

Definitions

  • the invention relates to a hermetic box consisting of a container and lid.
  • an airtight container for the conservation of perishable goods such as, for example, food.
  • An essential characteristic of an airtight container is the tightness of the assembly made by the cover and the container, this sealing being an essential factor in conservation of the foodstuffs contained in the box.
  • Various approaches have been considered to achieve this seal, in particular by cooperation of forms between grooves formed in the lid or on the edges of the container and elements provided on the edges of the container or in the lid.
  • the invention relates to an airtight container consisting of a container and a lid capable of sealing a opening of the container by covering the edges of this container, this cover being provided with an internal rib defining, with an outer wall of the cover, a receiving area container edge device, this receiving area being bordered by elastic seals capable of coming into contact edge, characterized in that at least one of the joints elastic includes a sealing tongue adapted to come in support against a transverse rib formed on a wall side of the container near its edge, cooperation of the tongue and of the transverse rib being able to limit the edge penetration movement in the area of reception.
  • the positioning of the edge of the container in the receiving area of the cover does not require a support of the upper face of this edge at the bottom of the area or receiving groove to obtain a satisfactory seal.
  • the area receiving area is bordered by elastic seals only on its two sides generally parallel to the sides of the edge.
  • the elastic seal delimiting the reception area on the side of the internal rib of the cover is arranged on either side of this rib internal.
  • This aspect of the invention gives this joint a special geometry allowing effective cooperation with the rib.
  • the seal extends, in certain areas of the periphery of the cover, on the outer surface of the cover.
  • This aspect of the invention contributes to the attachment of this elastic seal to the cover, which ensures its precise positioning and constant with respect to the internal rib of the cover.
  • the cover carries, on its external peripheral surface, a strip grip made of elastic material.
  • This band grip makes it easier to operate the cover in the since it can be made in a less smooth material than the other parts of the cover.
  • the elastic band is formed by the extension of one of the seals on an outside face of the cover.
  • the elastic seals are advantageously made of elastomer while the container and the cover are made polypropylene. We can also provide that the joints are formed on the cover by a bi-injection process.
  • an airtight box is formed of a container 1 of generally parallelepiped shape with rounded edges.
  • This container includes a bottom 2 and walls lateral 3 whose upper edges 4 define a opening 5 intended to be closed by a cover 6.
  • the lid 6 carries an inner rib 7 disposed in its inner or lower 6a and near an outer wall 8 extending towards the bottom 2 of the container 1 when the lid is in place.
  • This zone 9 generally has the shape of a groove. It is bordered on its two sides by two elastic seals 10 and 11 against which the lateral faces 4 a and 4 b of the edge 4 bear when it is introduced into the zone 9, as shown in FIG. 3.
  • the edge 4 carries a rib transverse 12 which extends outwards from the container to from edge 4 and against which can bear a tongue 13 forming the lower end of the seal 10.
  • the rib 12 is generally perpendicular to the edge 4 in its connection area to this edge.
  • the penetration of the edge 4 inside the zone 9 is limited by the cooperation of the elements 12 and 13, so that the positioning of the edge 4 in the zone 9 is defined by the sliding of a face 4 a of the edge 4 on a surface 10 a of the seal 10 and an opposite face 4 b of the edge 4 on a corresponding surface 11 b of the seal 11.
  • the contact between the edge 4 and the seals 10 and 11 is therefore not made in three points, but between two sets of surfaces with a stop.
  • the sealing function is obtained in a completely satisfactory manner while the bottom 9 a of the zone 9 is not in contact with the end 4 c of the edge 4.
  • peripheral edge 8a of the outer wall 8 of the cover 6 and the end 12a of the rib 12 are formed such that their spacing e is low in the position of figure 3, which limits the risk of pollution of the seal 10 when the box object of the invention is closed.
  • the seal 11 is arranged on either side of the rib 7, which guarantees its positioning even if the rib 7 is slightly deformed by the introduction of edge 4 in the area 9.
  • edge 4 into the groove 9 is carried out in exerting on the wall 8 a spacing force represented by arrow F in Figure 2, then pushing cover 6 toward the edge 4 in the direction of the arrow F 'in this figure.
  • the seal 11 passes through an orifice 14 of the lid 6 and overflows in the form of a bead 15 on the outer surface 6b of the cover 6.
  • This bead 15 is wider than the orifice 14, so that the seal 11 is effectively locked in position around the rib 7.
  • the bead 15, which may be of a different color from the outer surface 6 b of the cover 6, makes it possible to identify at first glance the largest dimension of the cover when two beads 15 are arranged near the two smaller sides of the cover. This facilitates handling and positioning of the cover 6 on the container 1.
  • the bead 15 is not formed over the entire periphery of the cover 6. In fact, if the bead was continuous on the periphery of the cover 6, the outer wall 8 would be detached from its central part, which would not make it possible to obtain satisfactory solidity of the cover.
  • a gripping strip 16 is formed on the outer surface 8 b of the outer wall 8 of the cover 6.
  • This band gripping extending around the entire periphery of the cover 6 is made of an elastic material, which gives it a pleasant touch while it can have relatively large dimensions, especially in the cutting plane of Figures 2 and 3.
  • This gripping strip can be provided less smooth than the main body of the cover 6, which facilitates the handling of the cover . It can also be provided in a different color, which gives a particular aesthetic appearance to the cover and facilitates its recognition.
  • the strip 16 and the joint 10 meet at the level of a bridge 17, which allows a effective immobilization of the seal 10 and of the strip 16 on the cover 6.
  • the strip 16 therefore constitutes an extension of the joint 10 across bridge 17 which crosses a formed orifice in a connection zone between the wall 8 and the part main cover 6.
  • Bridge 17 does not extend over all the periphery of the cover 6, so that the wall 8 is connected, at least at certain points, at the main part of the cover.
  • joint 10 and the strip 16 are made of the same material which is advantageously an elastomer.
  • the seal 11 is also made of elastomer.
  • the seals and / or the tape gripping are advantageously formed by a bi-injection process on the main body of the cover.
  • the cover 6 is provided with a tongue 18 allowing it to be maneuvered during its installation or removing it from container 1.
  • the invention has been shown with a transverse rib 12 of the edges 4 of the container 1 arranged outside the walls 3. It would also be possible to provide that this rib is arranged inside the container volume, the joint 11 then carrying a tongue equivalent to the tongue 13.

Landscapes

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

Abstract

The hermetic box comprises a container (1) and a cover (6) which covers the container edges (4). The lid has an internal rib (7) defining with the cover external wall (8) a peripheral reception zone (9) for a container edge. The container edge is edged by flexible seals (10,11). One of the seals includes a sealing tongue (13) which is supported against a transverse rib (12) on the container side wall (3).

Description

L'invention a trait à une boíte hermétique constituée d'un conteneur et d'un couvercle.The invention relates to a hermetic box consisting of a container and lid.

Il est connu d'utiliser une boíte hermétique pour la conservation de denrées périssables tels que, par exemple, des aliments. Une caractéristique essentielle d'une boíte hermétique est l'étanchéité de l'assemblage réalisé par le couvercle et le conteneur, cette étanchéité étant un facteur essentiel de conservation des denrées contenues dans la boíte. Diverses approches ont été envisagées pour réaliser cette étanchéité, notamment par coopération de formes entre des gorges ménagées dans le couvercle ou sur les bords du conteneur et des éléments correspondants prévus sur les bords du conteneur ou dans le couvercle.It is known to use an airtight container for the conservation of perishable goods such as, for example, food. An essential characteristic of an airtight container is the tightness of the assembly made by the cover and the container, this sealing being an essential factor in conservation of the foodstuffs contained in the box. Various approaches have been considered to achieve this seal, in particular by cooperation of forms between grooves formed in the lid or on the edges of the container and elements provided on the edges of the container or in the lid.

Par la demande de brevet européen 0 814 028, on connaít un couvercle pour un récipient qui porte, à sa périphérie, une gorge ouverte vers le bas prévue pour recevoir une partie supérieure d'une paroi du conteneur qui est pourvue d'une cambrure ou déflexion. Dans ce dispositif connu, le positionnement du bord du conteneur dans la gorge du couvercle est réalisé par un contact en trois points, c'est-à-dire un contact sur les deux côtés de ce bords et un contact entre le dessus de ce bord et le fond de cette gorge. En pratique, un tel contact en trois points est difficile à réaliser à cause des tolérances de fabrication des pièces constitutives des boites hermétiques qui sont généralement fabriquées en polypropylène et susceptibles de se déformer, notamment sous l'effet de contraintes thermiques. C'est pourquoi il arrive que cette étanchéité en trois points ne soit pas réalisée, de sorte que la boíte hermétique n'est plus efficace.By European patent application 0 814 028, we know a lid for a container which carries, at its periphery, a throat open downward intended to receive a portion top of a container wall which is provided with a camber or deflection. In this known device, the positioning from the edge of the container into the throat of the lid is made by a three-point contact, i.e. a contact on both sides of this edges and a contact between the top of this edge and the bottom of this groove. In practice, such contact in three points is difficult to achieve because of tolerances for manufacturing the component parts of airtight containers which are generally made of polypropylene and likely to deform, in particular under the effect of constraints thermal. This is why it happens that this tightness in three points is not carried out, so that the box airtight is no longer effective.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une boíte hermétique dont l'étanchéité est optimale, y compris en tenant compte des tolérances inhérentes à la fabrication du conteneur et du couvercle et/ou à leur déformation.It is to these disadvantages that we hear more particularly remedy the invention by proposing an airtight container, sealing is optimal, including taking into account tolerances inherent in the manufacture of the container and cover and / or their deformation.

Dans cet esprit, l'invention concerne une boíte hermétique constituée d'un conteneur et d'un couvercle apte à obturer une ouverture du conteneur en coiffant les bords de ce conteneur, ce couvercle étant pourvu d'une nervure interne définissant, avec une paroi externe du couvercle, une zone de réception périphérique d'un bord du conteneur, cette zone de réception étant bordée par des joints élastiques aptes à venir au contact du bord, caractérisée en ce que l'un au moins des joints élastiques comprend une languette d'étanchéité apte à venir en appui contre une nervure transversale formée sur une paroi latérale du conteneur à proximité de son bord, la coopération de la languette et de la nervure transversale étant apte à limiter le mouvement de pénétration du bord dans la zone de réception.In this spirit, the invention relates to an airtight container consisting of a container and a lid capable of sealing a opening of the container by covering the edges of this container, this cover being provided with an internal rib defining, with an outer wall of the cover, a receiving area container edge device, this receiving area being bordered by elastic seals capable of coming into contact edge, characterized in that at least one of the joints elastic includes a sealing tongue adapted to come in support against a transverse rib formed on a wall side of the container near its edge, cooperation of the tongue and of the transverse rib being able to limit the edge penetration movement in the area of reception.

Grâce à l'invention, le positionnement du bord du conteneur dans la zone de réception du couvercle ne nécessite pas un appui de la face supérieure de ce bord au fond de la zone ou gorge de réception pour obtenir une étanchéité satisfaisante.Thanks to the invention, the positioning of the edge of the container in the receiving area of the cover does not require a support of the upper face of this edge at the bottom of the area or receiving groove to obtain a satisfactory seal.

Selon un premier aspect avantageux de l'invention, la zone de réception est bordée par les joints élastiques uniquement sur ses deux côtés globalement parallèles aux côtés du bord. Cet aspect de l'invention résulte d'une optimisation qui tient compte du fait qu'il n'est pas prévu de contact entre l'extrémité supérieure du bord du conteneur et le fond de la zone ou gorge de réception.According to a first advantageous aspect of the invention, the area receiving area is bordered by elastic seals only on its two sides generally parallel to the sides of the edge. This aspect of the invention results from an optimization which takes account for the fact that there is no provision for contact between the end top of container edge and bottom of area or receiving throat.

Selon un autre aspect de l'invention, le joint élastique délimitant la zone de réception du côté de la nervure interne du couvercle est disposé de part et d'autre de cette nervure interne. Cet aspect de l'invention confère à ce joint une géométrie particulière lui permettant une coopération efficace avec la nervure.According to another aspect of the invention, the elastic seal delimiting the reception area on the side of the internal rib of the cover is arranged on either side of this rib internal. This aspect of the invention gives this joint a special geometry allowing effective cooperation with the rib.

Selon un autre aspect avantageux de l'invention, le joint se prolonge, dans certaines zones de la périphérie du couvercle, sur la surface externe du couvercle. Cet aspect de l'invention contribue à l'accrochage de ce joint élastique sur le couvercle, ce qui permet d'assurer son positionnement précis et constant par rapport à la nervure interne du couvercle. On peut, en particulier, prévoir que la partie de ce joint disposée sur la surface externe du couvercle a une largeur supérieure à celle d'un orifice du couvercle à travers lequel s'étend le joint, notamment que le joint forme un bourrelet sur la surface externe du couvercle. Ces aspects de l'invention contribuent à une immobilisation efficace du joint par rapport au couvercle.According to another advantageous aspect of the invention, the seal extends, in certain areas of the periphery of the cover, on the outer surface of the cover. This aspect of the invention contributes to the attachment of this elastic seal to the cover, which ensures its precise positioning and constant with respect to the internal rib of the cover. We may, in particular, provide that the part of this joint arranged on the outer surface of the cover has a width greater than that of a hole in the cover through which extends the joint, in particular that the joint forms a bead on the outer surface of the cover. These aspects of the invention contribute to an effective immobilization of the joint with respect to on the cover.

Selon un autre aspect avantageux de l'invention, le couvercle porte, à sa surface périphérique externe, une bande de préhension réalisée dans un matériau élastique. Cette bande de préhension facilite les manoeuvres du couvercle dans la mesure où elle peut être réalisée dans un matériau moins lisse que les autres parties du couvercle. Dans ce cas, on peut prévoir que la bande élastique est formée par le prolongement de l'un des joints sur une face extérieure du couvercle.According to another advantageous aspect of the invention, the cover carries, on its external peripheral surface, a strip grip made of elastic material. This band grip makes it easier to operate the cover in the since it can be made in a less smooth material than the other parts of the cover. In this case, we can provide that the elastic band is formed by the extension of one of the seals on an outside face of the cover.

Les joints élastiques sont avantageusement réalisés en élastomère alors que le conteneur et le couvercle sont réalisés en polypropylène. On peut également prévoir que les joints sont formés sur le couvercle par un procédé de bi-injection.The elastic seals are advantageously made of elastomer while the container and the cover are made polypropylene. We can also provide that the joints are formed on the cover by a bi-injection process.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre d'une boíte hermétique conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective d'une boíte conforme à l'invention avec son couvercle séparé ;
  • la figure 2 est une coupe partielle selon la ligne II-II à la figure 1 ;
  • la figure 3 est une coupe identique à la figure 2, le couvercle étant en place sur le conteneur et ;
  • les figures 4 et 5 sont des coupes selon les lignes IV-IV et V-V à la figure 1.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an airtight container conforming to its principle, given solely by way of example and made with reference to the drawings annexed in which:
  • Figure 1 is a perspective view of a box according to the invention with its separate cover;
  • Figure 2 is a partial section along the line II-II in Figure 1;
  • Figure 3 is a section identical to Figure 2, the cover being in place on the container and;
  • Figures 4 and 5 are sections along lines IV-IV and VV in Figure 1.

A la figure 1, une boíte hermétique est formée d'un conteneur 1 de forme globalement parallélipipédique avec des bords arrondis. Ce conteneur comprend un fond 2 et des parois latérales 3 dont les bords supérieurs 4 définissent une ouverture 5 prévue pour être obturée par un couvercle 6.In Figure 1, an airtight box is formed of a container 1 of generally parallelepiped shape with rounded edges. This container includes a bottom 2 and walls lateral 3 whose upper edges 4 define a opening 5 intended to be closed by a cover 6.

Le couvercle 6 porte une nervure interne 7 disposée sous sa face interne ou inférieure 6a et à proximité d'une paroi externe 8 s'étendant en direction du fond 2 du conteneur 1 lorsque le couvercle est en place.The lid 6 carries an inner rib 7 disposed in its inner or lower 6a and near an outer wall 8 extending towards the bottom 2 of the container 1 when the lid is in place.

Entre la nervure 7 et la paroi 8 est définie une zone 9 de réception des bords 4 des parois 3. Cette zone 9 a globalement la forme d'une gorge. Elle est bordée, sur ses deux côtés, de deux joints élastiques 10 et 11 contre lesquels viennent en appui les faces latérales 4a et 4b du bord 4 lorsqu'il est introduit dans la zone 9, comme représenté à la figure 3.Between the rib 7 and the wall 8 is defined a zone 9 for receiving the edges 4 of the walls 3. This zone 9 generally has the shape of a groove. It is bordered on its two sides by two elastic seals 10 and 11 against which the lateral faces 4 a and 4 b of the edge 4 bear when it is introduced into the zone 9, as shown in FIG. 3.

Conformément à l'invention, le bord 4 porte une nervure transversale 12 qui s'étend vers l'extérieur du conteneur à partir du bord 4 et contre laquelle peut venir en appui une languette 13 formant l'extrémité inférieure du joint 10. On note que la nervure 12 est globalement perpendiculaire au bord 4 dans sa zone de raccordement à ce bord.According to the invention, the edge 4 carries a rib transverse 12 which extends outwards from the container to from edge 4 and against which can bear a tongue 13 forming the lower end of the seal 10. On note that the rib 12 is generally perpendicular to the edge 4 in its connection area to this edge.

Ainsi, la pénétration du bord 4 à l'intérieur de la zone 9 est limitée par la coopération des éléments 12 et 13, de sorte que le positionnement du bord 4 dans la zone 9 est défini par le glissement d'une face 4a du bord 4 sur une surface 10a du joint 10 et d'une face opposée 4b du bord 4 sur une surface correspondante 11b du joint 11. Le contact entre le bord 4 et les joints 10 et 11 n'est donc pas réalisé en trois points, mais entre deux jeux de surfaces avec une butée.Thus, the penetration of the edge 4 inside the zone 9 is limited by the cooperation of the elements 12 and 13, so that the positioning of the edge 4 in the zone 9 is defined by the sliding of a face 4 a of the edge 4 on a surface 10 a of the seal 10 and an opposite face 4 b of the edge 4 on a corresponding surface 11 b of the seal 11. The contact between the edge 4 and the seals 10 and 11 is therefore not made in three points, but between two sets of surfaces with a stop.

La fonction d'étanchéité est obtenue de façon tout à fait satisfaisante alors que le fond 9a de la zone 9 n'est pas en contact avec l'extrémité 4c du bord 4.The sealing function is obtained in a completely satisfactory manner while the bottom 9 a of the zone 9 is not in contact with the end 4 c of the edge 4.

On note que le bord périphérique 8a de la paroi externe 8 du couvercle 6 et l'extrémité 12a de la nervure 12 sont conformés de telle sorte que leur écartement e est faible dans la position de la figure 3, ce qui limite les risque de pollution du joint 10 lorsque la boíte objet de l'invention est fermée.It is noted that the peripheral edge 8a of the outer wall 8 of the cover 6 and the end 12a of the rib 12 are formed such that their spacing e is low in the position of figure 3, which limits the risk of pollution of the seal 10 when the box object of the invention is closed.

Le joint 11 est disposé de part et d'autre de la nervure 7, ce qui garantit son positionnement même si la nervure 7 est légèrement déformée par l'introduction du bord 4 dans la zone 9.The seal 11 is arranged on either side of the rib 7, which guarantees its positioning even if the rib 7 is slightly deformed by the introduction of edge 4 in the area 9.

L'introduction du bord 4 dans la gorge 9 est réalisée en exerçant sur la paroi 8 un effort d'écartement représenté par la flèche F à la figure 2, puis en poussant le couvercle 6 vers le bord 4 selon la direction de la flèche F' sur cette figure.The introduction of the edge 4 into the groove 9 is carried out in exerting on the wall 8 a spacing force represented by arrow F in Figure 2, then pushing cover 6 toward the edge 4 in the direction of the arrow F 'in this figure.

Dans le plan de coupe de la figure 4, le joint 11 traverse un orifice 14 du couvercle 6 et déborde sous la forme d'un bourrelet 15 sur la surface externe 6b du couvercle 6. Ce bourrelet 15 est plus large que l'orifice 14, de sorte que le joint 11 est efficacement verrouillé en position autour de la nervure 7. En outre, et comme cela ressort plus clairement de la figure 1, le bourrelet 15, qui peut être d'une couleur différente de la surface extérieure 6b du couvercle 6, permet d'identifier au premier regard la plus grande dimension du couvercle lorsque deux bourrelets 15 sont disposés à proximité des deux plus petits côtés du couvercle. Ceci facilite la manipulation et la mise en place du couvercle 6 sur le conteneur 1. On note que le bourrelet 15 n'est pas constitué sur la totalité de la périphérie du couvercle 6. En effet, si le bourrelet était continu sur la périphérie du couvercle 6, la paroi externe 8 serait détachée de sa partie centrale, ce qui ne permettrait pas d'obtenir une solidité satisfaisante du couvercle.In the Figure the cutting plane 4, the seal 11 passes through an orifice 14 of the lid 6 and overflows in the form of a bead 15 on the outer surface 6b of the cover 6. This bead 15 is wider than the orifice 14, so that the seal 11 is effectively locked in position around the rib 7. In addition, and as can be seen more clearly from FIG. 1, the bead 15, which may be of a different color from the outer surface 6 b of the cover 6, makes it possible to identify at first glance the largest dimension of the cover when two beads 15 are arranged near the two smaller sides of the cover. This facilitates handling and positioning of the cover 6 on the container 1. It is noted that the bead 15 is not formed over the entire periphery of the cover 6. In fact, if the bead was continuous on the periphery of the cover 6, the outer wall 8 would be detached from its central part, which would not make it possible to obtain satisfactory solidity of the cover.

Une bande de préhension 16 est formée sur la surface externe 8b de la paroi externe 8 du couvercle 6. Cette bande de préhension, qui s'étend sur toute la périphérie du couvercle 6, est réalisée dans un matériau élastique, ce qui lui confère un toucher agréable alors qu'elle peut avoir des dimensions relativement importantes, notamment dans le plan de coupe des figures 2 et 3. Cette bande de préhension peut être prévue moins lisse que le corps principal du couvercle 6, ce qui facilite la manipulation du couvercle. Elle peut également être prévue dans une couleur différente, ce qui confère un aspect esthétique particulier au couvercle et facilite sa reconnaissance.A gripping strip 16 is formed on the outer surface 8 b of the outer wall 8 of the cover 6. This band gripping extending around the entire periphery of the cover 6 is made of an elastic material, which gives it a pleasant touch while it can have relatively large dimensions, especially in the cutting plane of Figures 2 and 3. This gripping strip can be provided less smooth than the main body of the cover 6, which facilitates the handling of the cover . It can also be provided in a different color, which gives a particular aesthetic appearance to the cover and facilitates its recognition.

Dans le plan des figures 2 et 3, la bande 16 et le joint 10 se rejoignent au niveau d'un pont 17, ce qui permet une immobilisation efficace du joint 10 et de la bande 16 sur le couvercle 6. La bande 16 constitue donc un prolongement du joint 10 à travers le pont 17 qui traverse un orifice ménagé dans une zone de raccordement entre la paroi 8 et la partie principale du couvercle 6. Le pont 17 ne s'étend pas sur toute la périphérie du couvercle 6, afin que la paroi 8 soit reliée, en certains points au moins, à la partie principale du couvercle.In the plane of Figures 2 and 3, the strip 16 and the joint 10 meet at the level of a bridge 17, which allows a effective immobilization of the seal 10 and of the strip 16 on the cover 6. The strip 16 therefore constitutes an extension of the joint 10 across bridge 17 which crosses a formed orifice in a connection zone between the wall 8 and the part main cover 6. Bridge 17 does not extend over all the periphery of the cover 6, so that the wall 8 is connected, at least at certain points, at the main part of the cover.

Compte tenu de l'existence du pont 17, le joint 10 et la bande 16 sont réalisés dans le même matériau qui est avantageusement un élastomère. Le joint 11 est également en élastomère. Dans ce cas, et lorsque le conteneur 1 et le couvercle 6 sont réalisés en polypropylène, les joints et/ou la bande de préhension sont avantageusement formés par un procédé de bi-injection sur le corps principal du couvercle.Given the existence of bridge 17, joint 10 and the strip 16 are made of the same material which is advantageously an elastomer. The seal 11 is also made of elastomer. In this case, and when the container 1 and the cover 6 are made of polypropylene, the seals and / or the tape gripping are advantageously formed by a bi-injection process on the main body of the cover.

D'autres matériaux peuvent être envisagés pour la fabrication du conteneur de la partie principale du couvercle ou des joints, tels que par exemple du polycarbonate.Other materials can be considered for manufacturing the container of the main part of the lid or joints, such as for example polycarbonate.

A l'un de ses coins, le couvercle 6 est pourvu d'une languette 18 permettant sa manoeuvre lors de sa mise en place ou de son retrait du conteneur 1.At one of its corners, the cover 6 is provided with a tongue 18 allowing it to be maneuvered during its installation or removing it from container 1.

L'invention a été représentée avec une nervure transversale 12 des bords 4 du conteneur 1 disposée à l'extérieur des parois 3. Il serait également possible de prévoir que cette nervure soit disposée à l'intérieur du volume du conteneur, le joint 11 portant alors une languette équivalente à la languette 13.The invention has been shown with a transverse rib 12 of the edges 4 of the container 1 arranged outside the walls 3. It would also be possible to provide that this rib is arranged inside the container volume, the joint 11 then carrying a tongue equivalent to the tongue 13.

Claims (10)

Boíte hermétique constituée d'un conteneur et d'un couvercle apte à obturer une ouverture dudit conteneur en coiffant les bords dudit conteneur, ledit couvercle étant pourvu d'une nervure interne définissant, avec une paroi externe dudit couvercle, une zone de réception périphérique d'un bord dudit conteneur, ladite zone de réception étant bordée par des joints élastique aptes à venir au contact dudit bord, caractérisée en ce que l'un (10) au moins desdits joints élastiques (10, 11) comprend une languette d'étanchéité (13) apte à venir en appui contre une nervure transversale (12) formée sur une paroi latérale (3) dudit conteneur (1) à proximité dudit bord (4), la coopération de ladite languette (13) et de ladite nervure transversale (12) étant apte à limiter le mouvement de pénétration dudit bord (4) dans ladite zone de réception (9).Hermetic box consisting of a container and a cover capable of closing an opening of said container in covering the edges of said container, said cover being provided with an internal rib defining, with a wall external of said cover, a peripheral reception area an edge of said container, said receiving area being bordered by elastic seals capable of coming into contact with said edge, characterized in that at least one (10) of said seals elastic (10, 11) includes a sealing tongue (13) able to bear against a transverse rib (12) formed on a side wall (3) of said container (1) in the vicinity of said edge (4), the cooperation of said tongue (13) and said transverse rib (12) being able to limit the movement of penetration of said edge (4) into said zone of reception (9). Boíte hermétique selon la revendication 1, caractérisée en ce que ladite zone de réception (9) est bordée par lesdits joints élastiques (10, 11) uniquement sur ses deux côtés globalement parallèles aux côtés (4a, 4b) dudit bord (4).Hermetic box according to claim 1, characterized in that said receiving zone (9) is bordered by said elastic seals (10, 11) only on its two sides generally parallel to the sides (4 a , 4 b ) of said edge (4) . Boíte hermétique selon l'une des revendications précédentes, caractérisée en ce que le joint élastique (11) délimitant ladite zone de réception (9) du côté de ladite nervure interne (7) du couvercle (6) est disposé de part et d'autre de ladite nervure interne.Hermetic box according to one of claims previous, characterized in that the elastic seal (11) delimiting said reception area (9) on the side of said internal rib (7) of the cover (6) is arranged on the side and on the other side of said internal rib. Boíte hermétique selon l'une des revendications précédentes, caractérisée en ce que le joint élastique (11) délimitant ladite zone de réception (9) du côté de ladite nervure interne (7) se prolonge, dans certaines zones (14) de la périphérie dudit couvercle (6), sur la surface externe (6b) dudit couvercle.Hermetic box according to one of claims previous, characterized in that the elastic seal (11) delimiting said reception area (9) on the side of said internal rib (7) extends, in certain areas (14) of the periphery of said cover (6), on the external surface (6b) of said cover. Boíte hermétique selon la revendication 4, caractérisée en ce que la partie (15) dudit joint élastique (11) disposée sur la surface externe (6b) dudit couvercle (6) a une largeur supérieure à celle d'un orifice (14) dudit couvercle à travers lequel s'étend ledit joint. Hermetic box according to claim 4, characterized in that the part (15) of said elastic seal (11) disposed on the external surface ( 6b ) of said cover (6) has a width greater than that of an orifice (14) of said cover through which extends said seal. Boíte hermétique selon l'une des revendications 4 ou 5, caractérisée en ce que ledit joint élastique (11) forme un bourrelet (15) sur la surface externe (6b) dudit couvercle (6).Hermetic box according to one of claims 4 or 5, characterized in that said elastic seal (11) forms a bead (15) on the external surface (6 b ) of said cover (6). Boíte hermétique selon l'une des revendications précédentes, caractérisée en ce que ledit couvercle (6) porte, sur sa surface périphérique externe (8), une bande de préhension (16) réalisée dans un matériau élastique.Hermetic box according to one of claims previous, characterized in that said cover (6) carries, on its external peripheral surface (8), a gripping strip (16) made of an elastic material. Boíte hermétique selon la revendication 7, caractérisée en ce que ladite bande de préhension (16) est formée par le prolongement de l'un desdits joints (10) sur une face extérieure (8b) dudit couvercle (6).Hermetic box according to claim 7, characterized in that said gripping strip (16) is formed by the extension of one of said seals (10) on an outer face ( 8b ) of said cover (6). Boíte hermétique selon l'une des revendications précédentes, caractérisée en ce que lesdits joints élastiques (10, 11) sont réalisés en élastomère alors que ledit conteneur (1) et ledit couvercle (6) sont réalisés en polypropylène.Hermetic box according to one of claims previous, characterized in that said elastic seals (10, 11) are made of elastomer while said container (1) and said cover (6) are made of polypropylene. Boíte hermétique selon l'une des revendications précédentes, caractérisée en ce que lesdits joints (10, 11) sont formés sur ledit couvercle (6) par un procédé de bi-injection.Hermetic box according to one of claims previous, characterized in that said seals (10, 11) are formed on said cover (6) by a bi-injection process.
EP99420090A 1998-04-15 1999-04-09 Hermetically sealable box formed by a container and a cover Ceased EP0950614A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9804936A FR2777543B1 (en) 1998-04-15 1998-04-15 HERMETIC BOX CONSISTING OF A CONTAINER AND A LID
FR9804936 1998-04-15

Publications (1)

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EP0950614A1 true EP0950614A1 (en) 1999-10-20

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EP99420090A Ceased EP0950614A1 (en) 1998-04-15 1999-04-09 Hermetically sealable box formed by a container and a cover

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EP (1) EP0950614A1 (en)
FR (1) FR2777543B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213520A3 (en) * 2000-12-11 2003-05-02 Saint-Gobain Performance Plastics Corporation Valve box
FR2836427A1 (en) * 2002-02-22 2003-08-29 Neyr Plastiques Holding Petrol filler cover flap for motor vehicle fuel tank has inner liner with hinges and outer trim panel
WO2006077010A1 (en) * 2005-01-22 2006-07-27 Blanco Gmbh + C0 Kg Cover for a food container
CN102745375A (en) * 2011-04-21 2012-10-24 阿尔维斯塑料铸造销售有限公司 Plastic container structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0835819A1 (en) * 1996-10-11 1998-04-15 Dart Industries Inc. Canister with sealing lid

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0835819A1 (en) * 1996-10-11 1998-04-15 Dart Industries Inc. Canister with sealing lid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213520A3 (en) * 2000-12-11 2003-05-02 Saint-Gobain Performance Plastics Corporation Valve box
FR2836427A1 (en) * 2002-02-22 2003-08-29 Neyr Plastiques Holding Petrol filler cover flap for motor vehicle fuel tank has inner liner with hinges and outer trim panel
WO2006077010A1 (en) * 2005-01-22 2006-07-27 Blanco Gmbh + C0 Kg Cover for a food container
CN102745375A (en) * 2011-04-21 2012-10-24 阿尔维斯塑料铸造销售有限公司 Plastic container structure
EP2514683A1 (en) * 2011-04-21 2012-10-24 Arlövs Plastgjuteri Försäljnings AB Plastic container structure

Also Published As

Publication number Publication date
FR2777543B1 (en) 2000-06-02
FR2777543A1 (en) 1999-10-22

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