EP2643225A1 - Kombinierter petaloidboden eines behälters - Google Patents

Kombinierter petaloidboden eines behälters

Info

Publication number
EP2643225A1
EP2643225A1 EP11799768.4A EP11799768A EP2643225A1 EP 2643225 A1 EP2643225 A1 EP 2643225A1 EP 11799768 A EP11799768 A EP 11799768A EP 2643225 A1 EP2643225 A1 EP 2643225A1
Authority
EP
European Patent Office
Prior art keywords
container
periphery
radius
valley
curvature
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.)
Granted
Application number
EP11799768.4A
Other languages
English (en)
French (fr)
Other versions
EP2643225B3 (de
EP2643225B1 (de
Inventor
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 EP2643225A1 publication Critical patent/EP2643225A1/de
Application granted granted Critical
Publication of EP2643225B1 publication Critical patent/EP2643225B1/de
Publication of EP2643225B3 publication Critical patent/EP2643225B3/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/001—Supporting means fixed to 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
    • 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
    • B65D1/0261—Bottom construction
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet

Definitions

  • the invention relates to the manufacture of containers, in particular bottles, obtained by blow molding or stretch blow molding from preforms or intermediate containers of thermoplastic material.
  • a container generally comprises an open neck, through which the contents (usually a liquid), a body, which gives the container its volume, and a bottom, which closes the body opposite the neck and forms a base for maintain and hold the container when it is resting on a surface.
  • contents usually a liquid
  • body which gives the container its volume
  • bottom which closes the body opposite the neck and forms a base for maintain and hold the container when it is resting on a surface.
  • the containers for carbonated beverages in which the pressure of the gas dissolved in the liquid induces significant mechanical stresses, are mainly provided with petaloid-shaped bottoms: the bottom comprises projecting feet, in the form of petals, separated by portions of convex wall, called hollows or valleys, which extend radially from a central zone of the bottom.
  • the feet are intended to maintain the container placed on a surface; the valleys are intended to absorb the efforts (thermal, mechanical) exerted by the contents.
  • the performance of a petaloid bottom is measured by its mechanical strength - that is to say its ability to deform in a limited or controlled manner - not only during filling, but also during storage of the container.
  • the storage can be prolonged, and carried out under conditions of temperature and hygrometry severe which one meets exceptionally in the temperate countries but usually in the countries with continental climate, tropical or desert.
  • a plastic container comprising a body and a petaloid bottom extending the body, the bottom comprising a bottom wall of generally convex outward shape, which project feet formed by excrescences, the feet being separated in pairs by portions of the bottom wall forming recessed valleys which extend radially from a central zone of the bottom to a periphery of the bottom, a vessel in which each valley widens from the central zone to the periphery, and has a concave portion located near the periphery.
  • Such a container has the advantage of having increased resistance to deformation.
  • there is a good maintenance of the central zone of the bottom under the hydrostatic pressure possibly combined with the pressure of the dissolved gas in the case of a carbonated beverage.
  • the concave portion preferably has a radius of curvature between 0.20-A and 0.70-A (where A is the overall diameter of the bottom), and for example about 0.40-A.
  • the bottom may include a radial extension groove dug at the bottom of each valley.
  • each foot is preferably provided with an outer face which, in radial section, has a convex profile whose radius of curvature is greater than the overall diameter of the bottom, and for example equal to three times the overall diameter of the bottom. .
  • Figure 2 is an enlarged view of the bottom of the container of Figure 1;
  • Figure 3 is a bottom plan view of the bottom of Figure 2;
  • FIG. 5 is a sectional view of the bottom of Figure 3, according to the V-V section plane.
  • a container 1 - in this case a bottle - obtained by blow molding or stretch blow molding from a thermoplastic preform, for example polyethylene terephthalate (PET), previously heated .
  • a thermoplastic preform for example polyethylene terephthalate (PET), previously heated .
  • the bottom 3 is petaloid, and comprises a bottom wall 4 generally shaped convex outwardly of the container 1 (that is to say down when the container is laid flat).
  • the bottom 3 also comprises a series of feet 5 formed by outwardly protruding protrusions of the container 1, and which extend from a central zone 6 of the bottom 3 in the form of a pellet, where the material has remained substantially amorphous , towards a periphery 7 of the bottom 3 where it connects to the body 2.
  • A is noted the overall diameter of the bottom 3, measured at its periphery 7 ( Figure 5).
  • the most protruding parts or vertices 8 of the feet 4 are coplanar and together form a seat 9 through which the container can rest on a flat surface (for example a table).
  • a flat surface for example a table.
  • the seat 9 materialized in FIG. 3 by a dashed circle
  • B 9 the total height of the bottom 3, measured axially from the seat plane 9 to the periphery 7 of the bottom 3, where it connects to the body 2.
  • Each foot 5 has an end face 10 which slopes gently to the central zone 6 of the bottom 3 towards the apex 8, so that the foot 5 has a substantially triangular profile in radial section (FIG. 5). More specifically, as illustrated in FIG. 5, the end face has a double slope, and comprises:
  • the feet 5 are separated in pairs by portions 13 of the bottom wall 4 called valleys, which extend radially in a star from the central zone 6 to the periphery 7.
  • the valleys 13 are concave outwards in cross section (that is to say in a plane perpendicular to the radial direction, see Figure 4).
  • U is the radius of curvature of the valleys 13, measured in cross section. This radius U can be variable. More specifically, it is preferably low near the central zone 6, and relatively greater near the periphery 7 (see the numerical values in the table below).
  • FIGS. 2 and 3 show that the feet 5 are equal in number to the valleys 13.
  • the bottom 3 comprises five feet 5 and five valleys 13, regularly alternating and distributed in a star. This number is a good compromise; it could however be less (but greater than or equal to three), or greater (but preferably less than or equal to seven).
  • the bottom 3 is furthermore provided with radial grooves 22 which extend recess towards the inside of the container 1, at the bottom and along the valleys 8. More specifically, each groove 22 extends along a median line of a valley 13, from a neighborhood of the central zone 6 to the vicinity of the periphery 7.
  • Each groove 22 has in plan ( Figure 3) an oblong shape, whose edges are parallel over most of the length, and whose ends are both tapered.
  • each groove 22 has a flared U-profile. We note V the depth of the grooves 22.
  • the grooves 22 have the function of stiffening the bottom 3. Under the effect of the mechanical stresses exerted on the container 1 (in particular under the effect of the pressure prevailing in the container filled with a carbonated liquid), the grooves 22 tend flowing by expanding and flattening, which causes an enlargement of the valleys 13 and, consequently, a verticalization of the feet 5 which opposes the overall subsidence of the bottom 3.
  • FIG. 3 shows that each valley 13 widens from the central zone 6 towards the periphery 7. This widening is preferably continuous, that is to say that the edges of the valleys 13 form between them an angle in any non-zero point.
  • the valleys 13 have a tulip-shaped (or bell-shaped) outline in plan, but this shape is not limiting, and the edges of the valleys 13 could be straight (the valleys 13 then having a contour in V).
  • the average angular aperture of the valleys 13, measured in a plane perpendicular to the X axis between two virtual lines (in phantom in FIG. 3) joining the X axis and the radial ends of the lateral edges of the valleys 13, is denoted G. .
  • each valley 13 is devoid of branching (in particular on the periphery side 7), and thus forms a unitary hollow reserve.
  • M the average axial depth of each valley 13, that is to say the distance, measured parallel to the X axis, between the apex 8 of the feet 5 and the point of the valley 13 situated at the diameter B, at the vertical of the summit 8 (see Figure 5).
  • this combination makes it possible to minimize the axial movements of the central zone 6. Indeed, under the internal pressure of the container 1, on the one hand a swelling of the section
  • the value of the radius R obviously contributes (but in a secondary manner with respect to them) to maintain the central zone 6 at a substantially constant height after filling. More precisely, it seems important that the value of the radius R be high: we have chosen it greater than the overall diameter A of the container, and equal to triple of A in the preferred example.
  • This lever effect exerts on the central zone 6 an axial force directed towards the interior of the container 1, which opposes the force resulting from the hydrostatic thrust to which is added the additional pressure due to the dissolved gas, thus limiting the collapse of the central zone 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP11799768.4A 2010-11-25 2011-11-22 Kombinierter petaloidboden eines behälters Active EP2643225B3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1004588A FR2967975B1 (fr) 2010-11-25 2010-11-25 Fond de recipient petaloide combine
PCT/FR2011/052729 WO2012069759A1 (fr) 2010-11-25 2011-11-22 Fond de récipient pétaloïde combiné

Publications (3)

Publication Number Publication Date
EP2643225A1 true EP2643225A1 (de) 2013-10-02
EP2643225B1 EP2643225B1 (de) 2017-03-08
EP2643225B3 EP2643225B3 (de) 2018-05-23

Family

ID=44232650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11799768.4A Active EP2643225B3 (de) 2010-11-25 2011-11-22 Kombinierter petaloidboden eines behälters

Country Status (7)

Country Link
US (1) US10202221B2 (de)
EP (1) EP2643225B3 (de)
CN (1) CN103269953B (de)
BR (1) BR112013013046A2 (de)
FR (1) FR2967975B1 (de)
MX (1) MX359514B (de)
WO (1) WO2012069759A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2967975B1 (fr) 2010-11-25 2012-12-28 Sidel Participations Fond de recipient petaloide combine
EP2788261B1 (de) 2011-12-05 2018-12-19 Niagara Bottling, LLC Kunststoffbehälter mit rippen mit variierender tiefe
US11845581B2 (en) 2011-12-05 2023-12-19 Niagara Bottling, Llc Swirl bell bottle with wavy ribs
DE102012003219B4 (de) * 2012-02-20 2025-06-26 Krones Ag Kunststoffbehältnis
DE102012111493A1 (de) * 2012-11-27 2014-05-28 Krones Ag Kunststoffbehältnis mit verstärktem Boden
CH707262A2 (de) * 2012-11-30 2014-05-30 Alpla Werke Kunststoffbehälter.
PE20151678A1 (es) 2012-12-27 2015-12-17 Niagara Bottling Llc Envase plastico con una base de tiras
FR3005035B1 (fr) * 2013-04-24 2016-01-15 Sidel Participations Recipient muni d'un fond deformable a double arche
FR3007392B1 (fr) 2013-06-25 2016-02-05 Sidel Participations Recipient mini petaloide rainure
FR3013335B1 (fr) * 2013-11-15 2016-01-15 Sidel Participations Recipient en matiere thermoplastique a fond de type petaloide a soufflabilite augmentee
FR3022223B1 (fr) * 2014-06-13 2016-06-24 Sidel Participations Recipient muni d'un fond a poutres bourrelees
WO2016100483A1 (en) * 2014-12-19 2016-06-23 The Coca-Cola Company Carbonated beverage bottle bases and methods of making the same
FR3032946B1 (fr) * 2015-02-23 2017-02-10 Sidel Participations Recipient muni d'un fond mini petaloide a cannelures transversales
FR3057246B1 (fr) 2016-10-06 2022-12-16 Sidel Participations Fond petaloide a vallee brisee
WO2019041205A1 (en) * 2017-08-31 2019-03-07 The Procter & Gamble Company RIGID ARTICLES COMPRISING A WELL-DEFINED CORNER
FR3074482B1 (fr) * 2017-12-04 2019-10-18 Sidel Participations Recipient a fond petaloide
CN108528899B (zh) * 2018-04-12 2020-01-07 广东星联精密机械有限公司 一种轻量化塑料瓶的瓶底结构
DE102019119984A1 (de) * 2019-07-24 2021-01-28 Krones Ag Kunststoffbehältnis mit Zugbandgeometrie am Bodenbereich
USD1046626S1 (en) 2021-06-22 2024-10-15 Niagara Bottling, Llc Bottle
DE102022120143A1 (de) * 2022-08-10 2024-02-15 Krones Aktiengesellschaft Kunststoffbehältnis mit Zugbandgeometrie am Bodenbereich
FR3144603B1 (fr) 2022-12-30 2024-11-29 Sidel Participations Récipient à fond pétaloïde amélioré et fond de moule pour la fabrication d’un tel récipient
FR3144602B1 (fr) 2022-12-30 2025-05-02 Sidel Participations Récipient à fond pétaloïde amélioré et fond de moule pour la fabrication d’un tel récipient

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5625486A (en) * 1985-03-21 1986-10-13 Merimate Ltd. Improvements in or relating to plastics containers
US4867323A (en) * 1988-07-15 1989-09-19 Hoover Universal, Inc. Blow molded bottle with improved self supporting base
US5287978A (en) * 1990-11-15 1994-02-22 Plastipak Packaging, Inc. Plastic blow molded freestanding container
US5615790A (en) * 1990-11-15 1997-04-01 Plastipak Packaging, Inc. Plastic blow molded freestanding container
FR2717443B1 (fr) * 1994-03-16 1996-04-19 Evian Eaux Min Bouteille moulée en matière plastique.
US5529196A (en) * 1994-09-09 1996-06-25 Hoover Universal, Inc. Carbonated beverage container with footed base structure
CA2274574C (en) * 1996-12-20 2005-08-23 Ball Corporation Plastic container for carbonated beverages
FR2772720B1 (fr) * 1997-12-23 2000-03-17 Sidel Sa Recipient en matiere thermoplastique a fond petaloide
US20040173565A1 (en) * 1999-12-01 2004-09-09 Frank Semersky Pasteurizable wide-mouth container
ITPD20040323A1 (it) * 2004-12-24 2005-03-24 Acqua Minerale S Benedetto Spa Base di bottiglia in materia plastica particolarmente per bevande
FR2892048B1 (fr) * 2005-10-17 2008-01-04 Sidel Sas Fond de moule pour moule de fabrication de recipients thermoplastiques, et dispositif de moulage equipe d'au moins un moule equipe d'un tel fond.
FR2897292B1 (fr) 2006-02-16 2010-06-04 Sidel Participations Fond de moule pour moule de fabrication de recipients thermoplastiques, et dispositif de moulage equipe d'au moins un moule equipe d'un tel fond
US8439214B2 (en) * 2007-03-16 2013-05-14 Plastipak Packaging, Inc. Plastic container with elongated vertical formation
US7891513B2 (en) * 2007-06-08 2011-02-22 Amcor Limited Container base with feet
FR2959214B1 (fr) 2010-04-21 2012-06-29 Sidel Participations Fond de recipient petaloide renforce
FR2967975B1 (fr) 2010-11-25 2012-12-28 Sidel Participations Fond de recipient petaloide combine

Also Published As

Publication number Publication date
CN103269953B (zh) 2015-11-25
FR2967975B1 (fr) 2012-12-28
MX359514B (es) 2018-10-01
EP2643225B3 (de) 2018-05-23
BR112013013046A2 (pt) 2016-08-09
MX2013005655A (es) 2013-07-22
WO2012069759A1 (fr) 2012-05-31
US10202221B2 (en) 2019-02-12
FR2967975A1 (fr) 2012-06-01
EP2643225B1 (de) 2017-03-08
US20130264305A1 (en) 2013-10-10
CN103269953A (zh) 2013-08-28

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