EP0722888B1 - Im leeren Zustand, durch axialen Druck, zusammenpressbare Kunststoffflasche - Google Patents

Im leeren Zustand, durch axialen Druck, zusammenpressbare Kunststoffflasche Download PDF

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Publication number
EP0722888B1
EP0722888B1 EP96400143A EP96400143A EP0722888B1 EP 0722888 B1 EP0722888 B1 EP 0722888B1 EP 96400143 A EP96400143 A EP 96400143A EP 96400143 A EP96400143 A EP 96400143A EP 0722888 B1 EP0722888 B1 EP 0722888B1
Authority
EP
European Patent Office
Prior art keywords
bottle
section
fold
axis
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96400143A
Other languages
English (en)
French (fr)
Other versions
EP0722888A1 (de
Inventor
Jean-Marie Petre
Isabelle Fandeux
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.)
Societe des Eaux Minerales dEvian SA SAEME
Original Assignee
Societe des Eaux Minerales dEvian SA SAEME
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 Societe des Eaux Minerales dEvian SA SAEME filed Critical Societe des Eaux Minerales dEvian SA SAEME
Publication of EP0722888A1 publication Critical patent/EP0722888A1/de
Application granted granted Critical
Publication of EP0722888B1 publication Critical patent/EP0722888B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—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, 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
    • B65D1/0292—Foldable bottles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S215/00—Bottles and jars
    • Y10S215/90—Collapsible wall structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/906—Beverage can, i.e. beer, soda
    • Y10S220/907—Collapsible

Definitions

  • the invention relates to a bottle made of material plastic, intended in particular to contain a drink such as mineral water, which is can be vacuum crushed by axial compression to be reduced to a small volume residue.
  • the bottles described in the Request above mentioned have a cross section circular, and the bending caps are regularly distributed in the grooves and angularly offset of ⁇ / n from one groove to another, n being the number of groove bending primers and generally being between 3 and 20.
  • the invention aims to provide a simple, effective and inexpensive solution to this problem.
  • bottles made of material plastic of general cylindrical shape with section substantially polygonal cross-section, for example rectangular or square, which, when empty and open, are easily crushable by application of an effort of relatively low axial compression, which are nevertheless transportable in stacked loads and palletized when full and closed, and which can be made by conventional techniques injection blow molding or extrusion blow molding.
  • a bottle in plastic, compressible under vacuum axial comprising a cylindrical body formed with transverse grooves with a substantially V section and folding caps formed locally on the bottoms grooves and projecting outwards, said body being in section polygonal transverse with rounded vertices and the folding caps being formed in the immediate vicinity rounded vertices of the polygonal section of the body.
  • the presence of the folding caps in the vicinity the rounded vertices of the polygonal section of the bottle body promotes and facilitates crushing of it (empty and open) by application of a force low axial compression, reducing rigidity (at empty) rounded edges of the bottle body.
  • the folding primers are angularly offset from one groove to another, in being formed alternately on one side and the other of rounded tops of the body section.
  • the number of folding primers per groove is equal to the number of rounded vertices in the section transverse of the body.
  • the body of the bottle is sectioned substantially square, there are a number of folding caps of four per groove and are formed at 90 ° to each other another in each groove.
  • the body of the bottle is sectioned substantially rectangular, with curved sides convex, i.e. with concavity facing inside the bottle.
  • Each bend leader can be delimited by the intersection of the groove and a surface cylindrical with circular section whose axis is inside the bottle and is oriented obliquely by relative to the axis of the bottle, the initiation of folding being formed by the part of said cylindrical surface which is located on the outside of the groove.
  • each folding primer is bounded by the intersection of the groove and a frustoconical surface with circular cross section of which the axis is inside the bottle and is substantially parallel to the axis of the bottle or oriented oblique to the latter, the bend initiation being formed by the part of this frustoconical surface which is projecting from the outside of the groove.
  • Figures 1 to 3 schematically represent a first form of embodiment of the invention, according to which a bottle 10 made of a plastic material such as PET (poly (ethylene terephthalate)) comprises a body 12 of general cylindrical shape with a substantially square section, formed with 14 cross section grooves substantially V-shaped, which have bending caps 16 projecting towards the outside of the bottle and allowing an almost complete overwriting thereof (open and empty) when subjected to an effort of axial compression of approximately 10 daN.
  • PET poly (ethylene terephthalate)
  • Folding caps 16 are 4 in number by groove in the example shown and are located in the immediate vicinity of the rounded peaks 18 of the cross section of the body 12, being offset angularly from one groove 14 to the next, the bending caps 16 of a groove 14 being shown in solid lines in Figure 2 and those of lower groove being dotted.
  • the arc of circle that defines the outline of a folding leader 16 in the plane of Figure 2 (section plane II-II of the figure 1) is connected to the arc of a circle which defines a rounded top 18 of section of body 12, substantially at the point where the arc of the rounded vertex 18 is connected to the corresponding rectilinear side 20 of the body section 12 in the plane of Figure 2, this side straight 20 corresponding to the bottom of the groove 14.
  • all of the folding primers 16 are formed in the immediate vicinity of the cylinder portions which define the rounded edges of the body 12, and this without significantly encroaching on the rounded edges of these edges.
  • the angular offset between the primers of folding 16 from one groove to another is such that when a folding start 16 of a groove is on one side of a rounded top 18 of the section of the body 12, the corresponding folding primer 16 of the groove lower or upper is on the other side of this vertex rounded 18, as can be seen in the drawing of the figure 2.
  • a folding leader 16 of a groove is on a flat face of the body of the bottle, the corresponding folding caps of upper and lower splines are on a other side of the body of the bottle.
  • the folding primers 16 are generated, in the embodiment of Figures 1 to 3, by cylindrical surfaces 22 with circular cross section of which the axes 24 are located inside the bottle and inclined obliquely to the axis 26 of the bottle, the folding caps 16 being formed by the parts of these cylindrical surfaces 22 which are found projecting from the outer faces of the grooves 14.
  • the axes of the cylindrical surfaces 22 are inclined at an angle between 10 and 30 or 35 ° about, preferably about 20 ° from the axis from the bottle.
  • contours of the folding caps 16 in a elevation view of the bottle result from intersections of the cylindrical surfaces 22 with the grooves 14 in V section and are then substantially elliptical as seen in Figures 1 and 3.
  • the folding primers are formed by frustoconical surfaces 28 with circular cross section of which the axes are located inside the bottle and can be parallel to the axis 26 thereof or slightly inclined obliquely to this axis.
  • the contours of the folding primers in a elevation view of the bottle which are defined by the intersections of the frustoconical surfaces 28 with the grooves 14 in V section, are of substantially shaped triangular with curved sides, as seen in figure 4.
  • the vertex lines of the folding primers 16 which are generators of surfaces 22 or 28 and which are defined by the intersections of bend caps and mid-planes of symmetry of these primers passing through the axis of the bottle, are straight and tilted at an angle of 10 at about 30 or 35 ° on the axis of the bottle, the value currently preferred from this angle being of the order of 20 °.
  • the vertex lines are connected to the walls of the grooves by concave rounding (with turned concavity towards the outside of the bottle) with a very small radius curvature.
  • the angle of inclination of the vertex lines of the folding caps relative to the axis of the bottle must be greater than approximately 10 ° and less than half the opening angle of splines 14 (or angle at the top of the V-section of the splines), this opening angle being approximately 70 ° in the examples shown in the drawings.
  • the angle of inclination of the top lines of the folding caps also depends on the depth of the groove. In all cases, this angle is such that the component of a force axial compression exerted on the bottle (empty and open), along a perpendicular to the line of top of a folding leader, must bend the leader towards the outside of the bottle.
  • the body of the bottle is cross-sectional square with rounded tops and the distribution of primers in a groove 14 is regular, the folding primers 16 located at 90 ° from each other others around the axis of the bottle.
  • the body 12 of the bottle is of cross section substantially rectangular, with rounded tops 18 and convex curved sides 32.
  • Each groove 14 includes four folding caps 16 which are for example generated by a frustoconical surface as in the form of FIG. 4, and which are formed in immediate vicinity of the rounded vertices 18, so that the distribution of the folding caps 16 around the axis of the bottle is no longer uniform.
  • two folding caps 16 near the ends of a small side of the rectangular section are separated angularly about 80 °, while two primers of folding 16 near the ends of a long side of the rectangular section are separated by about 100 °, by relative to the axis of the bottle.
  • the primers for folding two flutes adjacent are angularly offset from a groove to the other, by an angle corresponding approximately to the angular extent of each rounded vertex 18.
  • the number of fold starts per groove cross is equal to the number of vertices of the section the rules for defining the primers of folding being those set out above.
  • the bottles according to the invention are manufactured by extrusion blow molding or injection blow molding, made of PET or another plastic material such as as PVC for example, a polyolefin or a polyester, a flexible or composite material, multi-layers or "compound".

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Pens And Brushes (AREA)

Claims (13)

  1. Flasche aus einem Plastikmaterial, welche im Leerzustand durch Druck in Axialrichtung zusammenschiebbar ist und einen zylindrischen Körper (12) aufweist, der mit in Querrichtung verlaufenden Rillen (14), deren Querschnitt im wesentlichen V-förmig ist, sowie mit örtlich begrenzt über den Rillenboden nach außen hin vorspringend ausgebildeten Knickelementen (16) ausgebildet ist, wobei der Körper (12) einen polygonalen Querschnitt mit gerundeten Eckabschnitten (18) aufweist, und die Knickelemente (16) in unmittelbarer Nachbarschaft der gerundeten Eckabschnitte (18) des polygonalen Querschnitts des Körpers (12) ausgebildet sind.
  2. Flasche nach Anspruch 1, dadurch gekennzeichnet, daß die Knickelemente (16) in aufeinanderfolgenden Rillen (14) in einem Winkel zueinander versetzt angeordnet sind.
  3. Flasche nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Knickelemente (16) in aufeinanderfolgenden Rillen abwechselnd auf jeweils einer Seite der gerundeten Eckabschnitte (18) ausgebildet sind.
  4. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Anzahl von Knickelementen (16) pro Rille gleich der Anzahl von gerundeten Eckabschnitten (18) des polygonalen Querschnitts des Körpers ist.
  5. Flasche nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der Winkel, um den die Achsen (24) der Knickelemente (16) in aufeinanderfolgenden Rillen zueinander versetzt sind, im wesentlichen gleich der Winkelerstreckung eines gerundeten Eckabschnitts (18) bezüglich der Flaschenachse ist.
  6. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Körper (12) einen im wesentlichen quadratischen Querschnitt aufweist.
  7. Flasche nach Anspruch 6, dadurch gekennzeichnet, daß die Knickelemente (16) in jeder Rille (14) vier an der Zahl sind und miteinander rechte Winkel bildend ausgebildet sind.
  8. Flasche nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Körper (12) einen im wesentlichen rechtwinkligen Querschnitt mit konvex gekrümmten Seitenabschnitten (32) aufweist (deren Hohlflächen zum Flascheninneren hinweisen).
  9. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jedes Knickelement (16) durch den Schnitt der Rille (14) mit der Oberfläche (22) eines Zylinders mit kreisförmigem Querschnitt begrenzt ist, dessen Achse (24) im Inneren der Flasche enthalten und in Bezug auf die Flaschenachse (26) schräg ausgerichtet ist, wobei das Knickelement den über die Außenfläche der Rille (14) vorspringenden Teil der Zylinderoberfläche (22) darstellt.
  10. Flasche nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß jedes Knickelement (16) durch den Schnitt der Rille (14) mit der Oberfläche (28) eines Stumpfkegels mit kreisförmigem Querschnitt begrenzt ist, dessen Achse im Inneren der Flasche enthalten ist und im wesentlichen parallel zur Flaschenachse verläuft oder schräg zu dieser ausgerichtet ist.
  11. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Winkelerstreckung eines Knickelementes (16) um die Flaschenachse derart bemessen ist, daß die Länge des Umrisses des Elementes in einer zur Flaschenachse senkrechten Ebene zwischen dem 0,03-fachen und 0,1-fachen des Flaschenumfangs in dieser Ebene beträgt.
  12. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jedes Knickelement (16) eine Erzeugende bzw. Scheitellinie aufweist, welche sich in einer durch die Flaschenachse verlaufenden Symmetrieebene erstreckt und zur Flaschenachse in einem zwischen ca. 10° und 30° bzw. 35° betragenden Winkel geneigt ist.
  13. Flasche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der maximale Betrag, um den ein Knickelement (16) in einer in Querrichtung durch die Mitte der Rille verlaufenden Medianebene radial über den Boden (20) der jeweiligen Rille (14) vorsteht, etwa die Hälfte der Tiefe der Rille (14) ist.
EP96400143A 1995-01-23 1996-01-22 Im leeren Zustand, durch axialen Druck, zusammenpressbare Kunststoffflasche Expired - Lifetime EP0722888B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9500711A FR2729640A1 (fr) 1995-01-23 1995-01-23 Bouteille en matiere plastique ecrasable a vide par compression axiale
FR9500711 1995-01-23

Publications (2)

Publication Number Publication Date
EP0722888A1 EP0722888A1 (de) 1996-07-24
EP0722888B1 true EP0722888B1 (de) 1998-07-22

Family

ID=9475384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400143A Expired - Lifetime EP0722888B1 (de) 1995-01-23 1996-01-22 Im leeren Zustand, durch axialen Druck, zusammenpressbare Kunststoffflasche

Country Status (9)

Country Link
US (1) US5746339A (de)
EP (1) EP0722888B1 (de)
JP (1) JPH10502038A (de)
AT (1) ATE168641T1 (de)
CA (1) CA2185693A1 (de)
DE (1) DE69600439T2 (de)
ES (1) ES2122766T3 (de)
FR (1) FR2729640A1 (de)
WO (1) WO1996022918A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102933465A (zh) * 2010-06-11 2013-02-13 西德尔合作公司 包括具有正方形底座的拱形底部的容器
CN102933465B (zh) * 2010-06-11 2014-09-24 西德尔合作公司 包括具有正方形底座的拱形底部的容器

Also Published As

Publication number Publication date
WO1996022918A1 (fr) 1996-08-01
DE69600439T2 (de) 1999-02-25
DE69600439D1 (de) 1998-08-27
EP0722888A1 (de) 1996-07-24
ATE168641T1 (de) 1998-08-15
CA2185693A1 (fr) 1996-08-01
JPH10502038A (ja) 1998-02-24
US5746339A (en) 1998-05-05
FR2729640A1 (fr) 1996-07-26
FR2729640B1 (de) 1997-03-07
ES2122766T3 (es) 1998-12-16

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