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EP1908693B1 - Container with a body at least partially shaped like a triangular prism - Google Patents

Container with a body at least partially shaped like a triangular prism Download PDF

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Publication number
EP1908693B1
EP1908693B1 EP07116466A EP07116466A EP1908693B1 EP 1908693 B1 EP1908693 B1 EP 1908693B1 EP 07116466 A EP07116466 A EP 07116466A EP 07116466 A EP07116466 A EP 07116466A EP 1908693 B1 EP1908693 B1 EP 1908693B1
Authority
EP
European Patent Office
Prior art keywords
groove
container
shape
rear wall
edges
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.)
Not-in-force
Application number
EP07116466A
Other languages
German (de)
French (fr)
Other versions
EP1908693A1 (en
Inventor
Wilfried Hermel
Damien Bourne
Laurent Lepoitevin
Michel Boukobza
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.)
Sidel Participations SAS
Original Assignee
Sidel Participations 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 Sidel Participations SAS filed Critical Sidel Participations SAS
Publication of EP1908693A1 publication Critical patent/EP1908693A1/en
Application granted granted Critical
Publication of EP1908693B1 publication Critical patent/EP1908693B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0027—Hollow longitudinal ribs
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0036—Hollow circonferential ribs
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0081—Bottles of non-circular cross-section

Definitions

  • the present invention relates generally to the field of containers made of thermoplastic material, in particular PET, and more specifically relates to improvements made to those containers having a body which has, at least over part of its height, a substantially prismatic shape with a substantially triangular cross-section and having three faces with modifiable conformation in the presence of a radial force and connected by three respective edges.
  • Containers such as bottles equipped with a body having such a shape with a substantially triangular section and with curved faces towards the outside are already known (see, for example, the documents GM 8003050 , WO 2005/030590 ).
  • the edges are curved with a relatively small radius of curvature.
  • a container with the features of the preamble of claim 1 is described in the document WO-2005123517 .
  • the object of the invention is to propose an improved arrangement of this type of container so that, despite its particular shape, it retains an elastic deformation capacity and no longer undergoes irreversible deformation, particularly in the zones of its edges.
  • the invention provides a container of the type mentioned in the preamble which is characterized in that each of the edges is shaped in the form of a groove open towards the outside and having a bottom which has an inverted curvature with convexity turned towards outside.
  • the crown of the convexity of the bottom of the groove is located substantially at the edges of the groove.
  • the edges have a complex conformation which gives them a great capacity of deformation: in the presence of a force exerted on the faces of the body, the edges can pivot, open and unfold in a perfectly elastic way to the way of a joint, which avoids any risk of irreversible deformation.
  • the edges can pivot, open and unfold in a perfectly elastic way to the way of a joint, which avoids any risk of irreversible deformation.
  • the provisions of the invention may find application in a container whose body has a substantially prismatic shape only in its central part, which is framed by an upper part and a lower part both having substantially cylindrical forms of revolution. and transverse dimensions substantially greater than the transverse dimension of said central portion, such that the central portion having the substantially prismatic shape of substantially triangular section, which is narrower than the two respectively overlying and underlying portions, constitutes a gripping zone whose particular shape ensures a particularly stable grip.
  • each groove extends to the connection of the central and upper parts of the body and that in the vicinity of this connection the depth of the groove gradually decreases. so that the bottom of the throat will blend roughly into the continuity of shape of the upper part.
  • each groove extends to the connection of the central and lower parts of the body and that in the vicinity of this connection the depth of the groove gradually decreases so that the bottom of the groove melt approximately in continuity of shape of the lower part; this arrangement can be completed by making each groove extend into the lower part of the body, the bottom of the groove merging into the continuity of shape of the lower part.
  • the groove extends to the bottom of the container to form a reinforcing rib of said bottom of the container, the bottom of the groove then having a concavity curvature turned towards the outside.
  • FIG. 1 To the figure 1 is shown in side view a container 1 such as a bottle, made of thermoplastic material, in particular PET.
  • the container 1 comprises a body 2 which is connected superiorly, by a shoulder 3, to a neck 4 and below a bottom 5 which may have any conformation appropriate to the use of the container.
  • the body 2 has, over substantially its entire height, a substantially prismatic shape with a substantially triangular cross-section, as visible in FIG. figure 3 ; in other words, the body 2 has three faces 6 interconnected by three edges 7; in the illustrated example, the three faces 6 are curved convexity facing outwards.
  • each edge 7 has a complex structure and is shaped in the form of a groove 8 which is open towards the outside and whose bottom 9 has an inverted curvature with convexity facing outwards.
  • the vertex 10 of the convexity of the bottom 9 of the groove 8 is located substantially at the edges 11 of the groove 8 of in order to minimize discontinuities in the outer surface of the body 2.
  • each edge 7 has, in cross-section, a very roughly rounded W-shaped conformation, which constitutes a kind of bellows with excellent elastic deformation capacity, in particular when the walls 6 are subjected to radial forces which modify them. the conformation.
  • ridges arranged in accordance with the invention are not limited to the sole case of a body equipped over its entire height as shown by way of example in FIG. figure 1 and any substantially prismatically shaped body portion of substantially triangular cross-section, regardless of the conformation of the remainder of the container body, may be arranged according to the invention.
  • a container 1 'of the bottle type whose body 2' has a complex shape: the body 2 'has a substantially prismatic shape only in its central part 12, which is framed by an upper part 13 and a lower part 14 having all two substantially cylindrical forms of revolution (possibly provided with reinforcing splines of any suitable shapes) and transverse dimensions substantially greater than the transverse dimension of said central portion 12.
  • the cross section shown at the figure 3 is made through said central portion; the Figure 5B shows this same section partially.
  • the central portion 12 is a gripping portion which not only facilitates the gripping of the container due to its reduced transverse dimensions, but particularly in the hand because of its approximately triangular shape.
  • each groove 8 extends to the connection of the central portion 12 and the upper portion 13 of the body 2 '; it can then be done so that near this connection the depth of the groove 8 decreases gradually; in this zone, the bottom 9 of the groove 8 can receive any appropriate conformation, for example be substantially flat or, in a preferred embodiment, melt approximately in the continuity of shape of the upper part 13 ( Figure 5A the edges 11 of the groove remain marked to provide visual continuity for aesthetic purposes).
  • each groove 8 extends to the connection of the central portion 12 and the lower portion 13 of the body 2 '; it can then be done so that near this connection the depth of the groove 8 decreases gradually; in this zone the bottom 9 of the groove 8 can receive any appropriate conformation, for example be substantially flat or, in a preferred embodiment, melt approximately in the continuity of shape of the lower part 14 ( Figure 5C ); In addition, it can also be ensured that, as represented in figure 3 each groove 8 extends partially into the lower portion 14 of the body 2 'and the bottom 9 of the groove 8 merges into the continuity of shape of the lower portion 14.
  • An interesting variant embodiment can relate to a container 1 ', such as a bottle, as shown in FIG. Figure 4A in which the bottom 5 'of the container, situated at the base of the lower part 14, has reinforcement ribs which rise partially on the side of said bottom 5 'of the container.
  • the body 2 'of the container is also arranged as explained above with respect to the figure 2 , it may be interesting that the groove 8 extends to the bottom 5 'of the container 1' to form one of the ribs 15 of said bottom 5 'of the container.
  • the bottom 9 of the groove 8 then has a curvature inversion, with a concavity turned towards the outside ( figure 5D ).
  • the groove 8 may have a variable width; in particular, as visible in the Figure 4A , the groove 8 keeps an approximately constant width in the central part 12 of the body 2 'of the container, but its width decreases in the lower part 14 of the body 2' to reach the width of a rib 15.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packages (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

The container (1`) has a body (2`) having a prismatic form with a triangular cross section. The body has three surfaces (6) connected by three ridges (7). Each ridge is conformed under the form of a groove (8) opened towards the exterior, where the groove comprises a base (9) which presents a reversed curve with a convexity turned towards the exterior. A vertex (10) of the convexity of the base is located at a level of edges (11) of the groove. The ridges pivot, open and unroll in the presence of an effort exerted on the surfaces of the body in an elastic manner and in an articulation manner.

Description

La présente invention concerne d'une façon générale le domaine des récipients en matériau thermoplastique, notamment en PET, et elle concerne plus spécifiquement des perfectionnements apportés à ceux de ces récipients comportant un corps qui possède, au moins sur une partie de sa hauteur, une forme sensiblement prismatique à section droite sensiblement triangulaire et présentant trois faces à conformation modifiable en présence d'un effort radial et se raccordant par trois arêtes respectives.The present invention relates generally to the field of containers made of thermoplastic material, in particular PET, and more specifically relates to improvements made to those containers having a body which has, at least over part of its height, a substantially prismatic shape with a substantially triangular cross-section and having three faces with modifiable conformation in the presence of a radial force and connected by three respective edges.

On connaît déjà des récipients tels que des bouteilles équipés d'un corps possédant une telle forme à section sensiblement triangulaire et à faces bombées vers l'extérieur (voir par exemple les documents DE GM 8003050 , WO 2005/030590 ). Dans ces récipients connus, les arêtes sont courbes avec un relativement faible rayon de courbure.Containers such as bottles equipped with a body having such a shape with a substantially triangular section and with curved faces towards the outside are already known (see, for example, the documents GM 8003050 , WO 2005/030590 ). In these known containers, the edges are curved with a relatively small radius of curvature.

Un récipient avec les caractéristiques du préambule de la revendication 1 est décrit dans le document WO-A-2005123517 .A container with the features of the preamble of claim 1 is described in the document WO-2005123517 .

Pour des applications de très grande diffusion, telle que la distribution d'eau de boisson par exemple, il est nécessaire d'abaisser le coût des récipients à un minimum, ce qui implique la mise en oeuvre d'une quantité de matière aussi faible que possible pour la fabrication de chaque récipient, ce qui entraîne par conséquent que chaque récipient possède des parois aussi minces que possible. Du fait de leur très faible rayon de courbure, les arêtes du corps d'un récipient, si elles viennent à être déformées par exemple lorsque les faces bombées du corps sont soumises à un effort dirigé radialement (prise en main notamment), « cassent », autrement dit se déforment de façon anguleuse et non élastique et ne peuvent pas reprendre leur forme originale. Un récipient ainsi déformé perd de sa stabilité et, du fait de son aspect endommagé, n'est plus commercialisable.For applications of very wide distribution, such as the distribution of drinking water for example, it is necessary to lower the cost of the containers to a minimum, which implies the implementation of a quantity of material as low as possible for the manufacture of each container, which consequently results that each container has walls as thin as possible. Because of their very small radius of curvature, the edges of the body of a container, if they come to be deformed for example when the curved sides of the body are subjected to a radially directed force (grip in particular), "break" in other words, deform angularly and inelastically and can not return to their original form. A container thus deformed loses its stability and, because of its damaged appearance, is no longer marketable.

Il est certes déjà connu, d'après le document WO 2005/123517 , d'aménager les arêtes en les réalisant sous une forme saillante comprenant une portion de paroi bombée encadrée par deux colonnes. Cet agencement connu est cependant plus spécifiquement prévu pour éviter toute déformation de l'arête lors du remplissage à chaud du récipient ; il n'est donc pas possible que cet agencement puisse être à même de procurer à l'arête une capacité accrue de déformation élastique lorsque les faces bombées du corps sont soumises à un effort dirigé radialement vers l'intérieur. Au surplus, les excroissances ainsi formées entre les faces bombées du corps ne procurent pas au récipient un bon aspect esthétique.It is certainly already known from the document WO 2005/123517 , to arrange the edges by making them in a protruding form comprising a curved wall portion framed by two columns. This known arrangement is however more specifically provided to prevent any deformation of the edge during hot filling of the container; it is therefore not possible that this arrangement may be able to provide the edge with an increased capacity for elastic deformation when the curved faces of the body are subjected to a force directed radially inwards. In addition, the growths thus formed between the convex sides of the body do not provide the container a good aesthetic appearance.

L'invention a pour but de proposer un aménagement perfectionné de ce type de récipient de manière que, malgré sa forme particulière, il conserve une capacité de déformation élastique et ne subisse plus de déformation irréversible notamment dans les zones de ses arêtes.The object of the invention is to propose an improved arrangement of this type of container so that, despite its particular shape, it retains an elastic deformation capacity and no longer undergoes irreversible deformation, particularly in the zones of its edges.

A cette fin, l'invention propose un récipient du type mentionné au préambule qui se caractérise en ce que chacune des arêtes est conformée sous forme d'une gorge ouverte vers l'extérieur et comportant un fond qui présente une courbure inversée à convexité tournée vers l'extérieur. Dans un mode de réalisation préféré, on prévoit que le sommet de la convexité du fond de la gorge soit situé sensiblement au niveau des bords de la gorge.To this end, the invention provides a container of the type mentioned in the preamble which is characterized in that each of the edges is shaped in the form of a groove open towards the outside and having a bottom which has an inverted curvature with convexity turned towards outside. In a preferred embodiment, it is expected that the crown of the convexity of the bottom of the groove is located substantially at the edges of the groove.

Grâce à ces dispositions, les arêtes présentent une conformation complexe qui leur procure une grande capacité de déformation : en présence d'un effort exercé sur les faces du corps, les arêtes peuvent pivoter, s'ouvrir et se dérouler de façon parfaitement élastique à la manière d'une articulation, ce qui évite tout risque de déformation irréversible. Ainsi, une fois l'effort déformant disparu, toutes les parties du corps du récipient reprennent élastiquement leur position et leur conformation premières.Thanks to these provisions, the edges have a complex conformation which gives them a great capacity of deformation: in the presence of a force exerted on the faces of the body, the edges can pivot, open and unfold in a perfectly elastic way to the way of a joint, which avoids any risk of irreversible deformation. Thus, once the distorting force disappeared, all parts of the body of the container elastically resume their position and their conformation first.

S'agissant selon l'invention d'un aménagement des seules arêtes de la partie de forme sensiblement prismatique à section sensiblement triangulaire, les dispositions qui viennent d'être énoncées peuvent être mises en oeuvre quelle que soit la hauteur de la partie de forme sensiblement prismatique, c'est-à-dire que cette partie s'étende sur toute la hauteur du corps du récipient ou seulement sur une portion de la hauteur dudit corps.With regard to the invention of an arrangement of the only edges of the substantially prismatic portion substantially triangular section section, the provisions that have just been stated can be implemented regardless of the height of the substantially shaped portion prismatic, that is to say that this portion extends over the entire height of the body of the container or only a portion of the height of said body.

En particulier, les dispositions de l'invention peuvent trouver une application dans un récipient dont le corps présente une forme sensiblement prismatique seulement dans sa partie centrale, laquelle est encadrée par une partie supérieure et une partie inférieure ayant toutes deux des formes sensiblement cylindriques de révolution et des dimensions transversales sensiblement supérieures à la dimension transversale de ladite partie centrale, de telle sorte que la partie centrale ayant la forme sensiblement prismatique à section sensiblement triangulaire, qui est plus étroite que les deux parties respectivement sus-jacente et sous-jacente, constitue une zone de préhension dont la forme particulière assure une prise en main particulièrement stable.In particular, the provisions of the invention may find application in a container whose body has a substantially prismatic shape only in its central part, which is framed by an upper part and a lower part both having substantially cylindrical forms of revolution. and transverse dimensions substantially greater than the transverse dimension of said central portion, such that the central portion having the substantially prismatic shape of substantially triangular section, which is narrower than the two respectively overlying and underlying portions, constitutes a gripping zone whose particular shape ensures a particularly stable grip.

Dans le contexte de l'application qui vient d'être évoqué, on peut avantageusement prévoir que chaque gorge s'étende jusqu'au raccordement des parties centrale et supérieure du corps et qu'au voisinage de ce raccordement la profondeur de la gorge diminue progressivement de sorte que le fond de la gorge se fond approximativement dans la continuité de forme de la partie supérieure. Egalement, il peut être prévu que chaque gorge s'étende jusqu'au raccordement des parties centrale et inférieure du corps et qu'au voisinage de ce raccordement la profondeur de la gorge diminue progressivement de sorte que le fond de la gorge se fond approximativement dans la continuité de forme de la partie inférieure ; on peut compléter cette disposition en faisant en sorte que chaque gorge s'étende dans la partie inférieure du corps, le fond de la gorge se fondant dans la continuité de forme de la partie inférieure. Alors, dans un exemple de réalisation intéressant, il devient possible de faire en sorte que, dans un récipient dans lequel la partie inférieure du corps se raccorde à un fond du récipient, la gorge s'étende jusque sur le fond du récipient pour former une nervure de renforcement dudit fond du récipient, le fond de la gorge présentant alors une courbure à concavité tournée vers l'extérieur.In the context of the application that has just been mentioned, it is advantageous to provide that each groove extends to the connection of the central and upper parts of the body and that in the vicinity of this connection the depth of the groove gradually decreases. so that the bottom of the throat will blend roughly into the continuity of shape of the upper part. Also, it can be provided that each groove extends to the connection of the central and lower parts of the body and that in the vicinity of this connection the depth of the groove gradually decreases so that the bottom of the groove melt approximately in continuity of shape of the lower part; this arrangement can be completed by making each groove extend into the lower part of the body, the bottom of the groove merging into the continuity of shape of the lower part. Then, in an interesting embodiment, it becomes possible to ensure that, in a container in which the lower part of the body connects to a bottom of the container, the groove extends to the bottom of the container to form a reinforcing rib of said bottom of the container, the bottom of the groove then having a concavity curvature turned towards the outside.

L'invention sera mieux comprise à la lecture de la description détaillée qui suit de certains modes de réalisation préférés donnés uniquement à titre d'exemples nullement limitatifs. Dans cette description, on se réfère aux dessins annexés sur lesquels :

  • la figure 1 est une vue de côté d'un récipient à corps sensiblement prismatique à section sensiblement triangulaire agencé conformément à l'invention ;
  • la figure 2 est une vue de côté d'un récipient dont seule la partie centrale du corps est sensiblement prismatique à section sensiblement triangulaire et agencée conformément à l'invention ;
  • la figure 3 est une vue très schématique en coupe selon la ligne III-III de la figure 1 ou de la figure 2 ;
  • la figure 4A est une vue de côté d'une variante de réalisation intéressante du récipient de la figure 2 ;
  • la figure 4B est une vue en perspective de dessus du récipient de la figure 4A, permettant de mieux voir la conformation précise d'une gorge sur toute son étendue; et
  • les figures 5A à 5D sont des coupes schématiques partielles des corps des récipients des figures 2 et 4A en divers emplacements.
The invention will be better understood on reading the following detailed description of certain preferred embodiments given solely by way of non-limiting examples. In this description, reference is made to the accompanying drawings in which:
  • the figure 1 is a side view of a container substantially prismatic body substantially triangular section arranged according to the invention;
  • the figure 2 is a side view of a container of which only the central portion of the body is substantially prismatic substantially triangular section and arranged according to the invention;
  • the figure 3 is a very schematic sectional view along line III-III of the figure 1 or from figure 2 ;
  • the Figure 4A is a side view of an interesting embodiment of the container of the figure 2 ;
  • the Figure 4B is a perspective view from above of the container of the Figure 4A , allowing to better see the precise conformation of a groove in all its extent; and
  • the Figures 5A to 5D are partial schematic sections of the bodies of the containers of the figures 2 and 4A in various locations.

Les dispositions conformes à l'invention vont maintenant être exposées en référence tout d'abord aux figures 1 et 3. A la figure 1 est montré en vue de côté un récipient 1 tel qu'une bouteille, constitué en matériau thermoplastique, notamment en PET. Le récipient 1 comporte un corps 2 qui se raccorde supérieurement, par une épaule 3, à un col 4 et inférieurement à un fond 5 qui peut présenter toute conformation appropriée à l'utilisation du récipient. Le corps 2 possède, sur sensiblement toute sa hauteur, une forme sensiblement prismatique à section droite sensiblement triangulaire, comme visible à la figure 3 ; autrement dit, le corps 2 présente trois faces 6 se raccordant mutuellement par trois arêtes 7 ; dans l'exemple illustré, les trois faces 6 sont bombées à convexité tournée vers l'extérieur.The arrangements according to the invention will now be described with reference first of all to figures 1 and 3 . To the figure 1 is shown in side view a container 1 such as a bottle, made of thermoplastic material, in particular PET. The container 1 comprises a body 2 which is connected superiorly, by a shoulder 3, to a neck 4 and below a bottom 5 which may have any conformation appropriate to the use of the container. The body 2 has, over substantially its entire height, a substantially prismatic shape with a substantially triangular cross-section, as visible in FIG. figure 3 ; in other words, the body 2 has three faces 6 interconnected by three edges 7; in the illustrated example, the three faces 6 are curved convexity facing outwards.

Conformément à l'invention, chaque arête 7 présente une structure complexe et est conformée sous forme d'une gorge 8 qui est ouverte vers l'extérieur et dont le fond 9 présente une courbure inversée à convexité tournée vers l'extérieur. Dans l'exemple de réalisation préféré visible à la figure 3, on fait en sorte que le sommet 10 de la convexité du fond 9 de la gorge 8 soit situé sensiblement au niveau des bords 11 de la gorge 8 de manière à réduire au minimum les discontinuités dans la surface externe du corps 2.According to the invention, each edge 7 has a complex structure and is shaped in the form of a groove 8 which is open towards the outside and whose bottom 9 has an inverted curvature with convexity facing outwards. In the preferred embodiment shown in FIG. figure 3 , it is arranged that the vertex 10 of the convexity of the bottom 9 of the groove 8 is located substantially at the edges 11 of the groove 8 of in order to minimize discontinuities in the outer surface of the body 2.

Ainsi, chaque arête 7 présente, en section droite, une conformation très approximativement en W à partie centrale arrondie, qui constitue une sorte de soufflet avec une excellente capacité de déformation élastique, notamment lorsque les parois 6 sont soumises à des efforts radiaux qui en modifient la conformation.Thus, each edge 7 has, in cross-section, a very roughly rounded W-shaped conformation, which constitutes a kind of bellows with excellent elastic deformation capacity, in particular when the walls 6 are subjected to radial forces which modify them. the conformation.

Les avantages conférés par des arêtes agencées conformément à l'invention ne sont pas limités au seul cas d'un corps équipé sur toute sa hauteur comme montré à titre d'exemple à la figure 1, et toute partie de corps conformée de façon sensiblement prismatique à section droite sensiblement triangulaire, indépendamment de la conformation du reste du corps du récipient, peut être agencée selon l'invention.The advantages conferred by ridges arranged in accordance with the invention are not limited to the sole case of a body equipped over its entire height as shown by way of example in FIG. figure 1 and any substantially prismatically shaped body portion of substantially triangular cross-section, regardless of the conformation of the remainder of the container body, may be arranged according to the invention.

Ainsi, à la figure 2 est illustré un récipient 1' du type bouteille dont le corps 2' possède une forme complexe : le corps 2' présente une forme sensiblement prismatique seulement dans sa partie 12 centrale, laquelle est encadrée par une partie 13 supérieure et une partie 14 inférieure ayant toutes deux des formes sensiblement cylindriques de révolution (éventuellement munies de cannelures de renfort de toutes formes appropriées) et des dimensions transversales sensiblement supérieures à la dimension transversale de ladite partie 12 centrale. La section droite montrée à la figure 3 est faite à travers ladite partie 12 centrale ; la figure 5B montre cette même section de façon partielle.So, at the figure 2 is illustrated a container 1 'of the bottle type whose body 2' has a complex shape: the body 2 'has a substantially prismatic shape only in its central part 12, which is framed by an upper part 13 and a lower part 14 having all two substantially cylindrical forms of revolution (possibly provided with reinforcing splines of any suitable shapes) and transverse dimensions substantially greater than the transverse dimension of said central portion 12. The cross section shown at the figure 3 is made through said central portion; the Figure 5B shows this same section partially.

Ainsi conformée, la partie 12 centrale constitue une partie de préhension qui, non seulement facilite la saisie du récipient du fait de ses dimensions transversales réduites, mais tient particulièrement dans la main du fait de sa forme approximativement triangulaire.Thus shaped, the central portion 12 is a gripping portion which not only facilitates the gripping of the container due to its reduced transverse dimensions, but particularly in the hand because of its approximately triangular shape.

Dans ce contexte, on peut prévoir que chaque gorge 8 s'étende jusqu'au raccordement de la partie 12 centrale et de la partie 13 supérieure du corps 2' ; on peut alors faire en sorte qu'au voisinage de ce raccordement la profondeur de la gorge 8 diminue progressivement ; dans cette zone le fond 9 de la gorge 8 peut recevoir toute conformation appropriée, par exemple être sensiblement plat ou, dans un exemple préféré de réalisation, se fondre approximativement dans la continuité de forme de la partie 13 supérieure (figure 5A, les bords 11 de la gorge demeurant marqués pour assurer une continuité visuelle à des fins esthétiques).In this context, it can be provided that each groove 8 extends to the connection of the central portion 12 and the upper portion 13 of the body 2 '; it can then be done so that near this connection the depth of the groove 8 decreases gradually; in this zone, the bottom 9 of the groove 8 can receive any appropriate conformation, for example be substantially flat or, in a preferred embodiment, melt approximately in the continuity of shape of the upper part 13 ( Figure 5A the edges 11 of the groove remain marked to provide visual continuity for aesthetic purposes).

On peut également prévoir que chaque gorge 8 s'étende jusqu'au raccordement de la partie 12 centrale et de la partie 13 inférieure du corps 2' ; on peut alors faire en sorte qu'au voisinage de ce raccordement la profondeur de la gorge 8 diminue progressivement ; dans cette zone le fond 9 de la gorge 8 peut recevoir toute conformation appropriée, par exemple être sensiblement plat ou, dans un exemple préféré de réalisation, se fondre approximativement dans la continuité de forme de la partie 14 inférieure (figure 5C) ; au surplus, on peut aussi faire en sorte que, comme représenté à la figure 3, chaque gorge 8 s'étende partiellement dans la partie 14 inférieure du corps 2' et que le fond 9 de la gorge 8 se fond dans la continuité de forme de la partie 14 inférieure.It is also possible that each groove 8 extends to the connection of the central portion 12 and the lower portion 13 of the body 2 '; it can then be done so that near this connection the depth of the groove 8 decreases gradually; in this zone the bottom 9 of the groove 8 can receive any appropriate conformation, for example be substantially flat or, in a preferred embodiment, melt approximately in the continuity of shape of the lower part 14 ( Figure 5C ); In addition, it can also be ensured that, as represented in figure 3 each groove 8 extends partially into the lower portion 14 of the body 2 'and the bottom 9 of the groove 8 merges into the continuity of shape of the lower portion 14.

Une variante de réalisation intéressante peut concerner un récipient 1', tel qu'une bouteille, comme montré à la figure 4A dans lequel le fond 5' du récipient, situé à la base de la partie 14 inférieure, présente des nervures 15 de renfort qui remontent en partie sur le flanc dudit fond 5' du récipient. Dans ce cas, le corps 2' du récipient étant par ailleurs agencé comme exposé plus haut en regard de la figure 2, il peut s'avérer intéressant que la gorge 8 s'étende jusque sur le fond 5' du récipient 1' pour former une des nervures 15 dudit fond 5' du récipient. Dans ce cas, le fond 9 de la gorge 8 présente alors une inversion de courbure, avec une concavité tournée vers l'extérieur (figure 5D).An interesting variant embodiment can relate to a container 1 ', such as a bottle, as shown in FIG. Figure 4A in which the bottom 5 'of the container, situated at the base of the lower part 14, has reinforcement ribs which rise partially on the side of said bottom 5 'of the container. In this case, the body 2 'of the container is also arranged as explained above with respect to the figure 2 , it may be interesting that the groove 8 extends to the bottom 5 'of the container 1' to form one of the ribs 15 of said bottom 5 'of the container. In this case, the bottom 9 of the groove 8 then has a curvature inversion, with a concavity turned towards the outside ( figure 5D ).

Sur la figure 4B qui montre le récipient 1' de la figure 4A en perspective de dessus, on peut mieux voir l'évolution de la forme du fond 9 de la gorge 8 avec l'inversion de courbure de la partie 12 centrale à la partie 14 inférieure où la gorge 8 commence à former une nervure 15.On the Figure 4B which shows the container 1 'of the Figure 4A in perspective from above, one can better see the evolution of the shape of the bottom 9 of the groove 8 with the inversion of curvature of the central portion 12 to the lower portion 14 where the groove 8 begins to form a rib 15.

On remarquera également que la gorge 8 peut présenter une largeur variable; en particulier, comme visible à la figure 4A, la gorge 8 conserve une largeur approximativement constante dans la partie 12 centrale du corps 2' du récipient, mais sa largeur s'amenuise dans la partie 14 inférieure du corps 2' pour rejoindre la largeur d'une nervure 15.It will also be noted that the groove 8 may have a variable width; in particular, as visible in the Figure 4A , the groove 8 keeps an approximately constant width in the central part 12 of the body 2 'of the container, but its width decreases in the lower part 14 of the body 2' to reach the width of a rib 15.

On notera également que l'aménagement des arêtes réalisé conformément à l'invention conduit à une structure non saillante qui reste très discrète et qui n'affecte pas de façon négative l'aspect esthétique du récipient.Note also that the arrangement of the edges made according to the invention leads to a non-projecting structure which remains very discreet and does not adversely affect the aesthetic appearance of the container.

Claims (7)

  1. Container (1; 1') made of a thermoplastic material, especially PET, having a body (2; 2') which, for at least a part of its height, is substantially prismatic in shape with a substantially triangular cross section and with three faces (6) with changeable shape in the presence of radial forces joined by three edges (7),
    characterized in that each of the edges (7) is shaped in the form of a groove (8) which opens outwards and which has a rear wall (9) having a reversed curvature with its convexity directed outwards.
  2. Container according to Claim 1, characterized in that the apex (10) of the convexity of the rear wall (9) of the groove (8) is substantially level with the edges (11) of the groove (8).
  3. Container according to Claim 1 or 2, characterized in that the body (2') is substantially prismatic in shape in its middle part (12) only, which lies between an upper part (13) and a lower part (14) that are both substantially cylinders of revolution and have transverse dimensions substantially greater than the transverse dimension of said middle part (12).
  4. Container according to Claim 3, characterized in that each groove (8) extends as far as the join between the middle and upper parts (12, 13) of the body (2') and in that in the region of this join the depth of the groove (8) gradually decreases so that the rear wall (9) of the groove (8) merges approximately into the shape of the upper part (13).
  5. Container according to Claim 3 or 4, characterized in that each groove (8) extends as far as the join between the middle and lower parts (12, 14) of the body (2') and in that in the region of this join the depth of the groove (8) gradually decreases so that the rear wall (9) of the groove (8) merges approximately into the shape of the lower part (14).
  6. Container according to Claim 5, characterized in that each groove (8) extends into the lower part (14) of the body (2'), with the rear wall (9) of the groove (8) merging into the shape of the lower part (14).
  7. Container according to Claim 6, in which the lower part (14) of the body (2') meets a bottom (5; 5') of the container (1'), characterized in that the groove (8) extends as far as the bottom (5; 5') of the container so as to form a reinforcing rib (15) for said container bottom (5; 5'), with the rear wall (9) of the groove (8) then having a reversed curvature with its concavity being directed outwards.
EP07116466A 2006-09-22 2007-09-14 Container with a body at least partially shaped like a triangular prism Not-in-force EP1908693B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0608359A FR2906224B1 (en) 2006-09-22 2006-09-22 BODY CONTAINER AT LEAST PARTIALLY PRISMATIC TRIANGULAR

Publications (2)

Publication Number Publication Date
EP1908693A1 EP1908693A1 (en) 2008-04-09
EP1908693B1 true EP1908693B1 (en) 2010-05-19

Family

ID=37685692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07116466A Not-in-force EP1908693B1 (en) 2006-09-22 2007-09-14 Container with a body at least partially shaped like a triangular prism

Country Status (9)

Country Link
US (1) US7798350B2 (en)
EP (1) EP1908693B1 (en)
JP (1) JP2008074493A (en)
CN (1) CN101148204A (en)
AT (1) ATE468273T1 (en)
DE (1) DE602007006603D1 (en)
ES (1) ES2345405T3 (en)
FR (1) FR2906224B1 (en)
MX (1) MX2007011678A (en)

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Also Published As

Publication number Publication date
US7798350B2 (en) 2010-09-21
CN101148204A (en) 2008-03-26
US20080073315A1 (en) 2008-03-27
EP1908693A1 (en) 2008-04-09
FR2906224A1 (en) 2008-03-28
JP2008074493A (en) 2008-04-03
DE602007006603D1 (en) 2010-07-01
FR2906224B1 (en) 2008-12-26
MX2007011678A (en) 2009-02-03
ATE468273T1 (en) 2010-06-15
ES2345405T3 (en) 2010-09-22

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