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EP2049405B1 - Mittels blasformen oder streckblasformen einer thermoplastischen hohlgefäss-vorform mit derartigem boden hergestellter boden eines hohlgefässes - Google Patents

Mittels blasformen oder streckblasformen einer thermoplastischen hohlgefäss-vorform mit derartigem boden hergestellter boden eines hohlgefässes Download PDF

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Publication number
EP2049405B1
EP2049405B1 EP07803870A EP07803870A EP2049405B1 EP 2049405 B1 EP2049405 B1 EP 2049405B1 EP 07803870 A EP07803870 A EP 07803870A EP 07803870 A EP07803870 A EP 07803870A EP 2049405 B1 EP2049405 B1 EP 2049405B1
Authority
EP
European Patent Office
Prior art keywords
transverse
bearing surface
hollow
transverse bearing
body bottom
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
EP07803870A
Other languages
English (en)
French (fr)
Other versions
EP2049405A1 (de
Inventor
Pierrick Protais
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
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Filing date
Publication date
Application filed by Sidel Participations SAS filed Critical Sidel Participations SAS
Publication of EP2049405A1 publication Critical patent/EP2049405A1/de
Application granted granted Critical
Publication of EP2049405B1 publication Critical patent/EP2049405B1/de
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
    • B65D1/0261—Bottom construction
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1397—Single layer [continuous layer]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/21—Circular sheet or circular blank
    • Y10T428/214—End closure

Definitions

  • the invention relates to the bottom of hollow body and hollow body according to the preamble of claim 1.
  • the invention relates more particularly to hollow bodies obtained by blowing or stretching then blowing a preform injected with thermoplastic material (injection blow molding).
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PP polypropylene
  • PAN polyacrylonitrile
  • blowing or stretching causes a structural hardening of the PET. Blowing or stretching also causes crystallization induced by deformation, leaving the material translucent. For conventional deformation rates, the higher the crystallinity, the higher the deformation rate and the higher the deformation rate.
  • heat setting treatment in which, just after blowing of the preform and while the container is still in contact with the walls of the mold blowing, a temperature of between 120 and 250 ° C is applied to the material for a few seconds. Then the container is cooled while being kept under pressure.
  • the bi-oriented PET has good mechanical and thermal resistance. But, as has been said above, the bottom of the containers is much less stretched than the body of the containers, so that the bottom has mechanical and thermal resistance lower than those of the body.
  • the bottom of the container must withstand shocks, for example when the full container falls.
  • the container bottom must withstand the internal pressure, especially when the container contains a carbonated beverage.
  • An internal overpressure may result from an increase in the storage temperature of the full bottles and / or the withdrawal of the plastic material from these bottles, this withdrawal generally occurring within two or three weeks of their manufacture and filling.
  • the container bottom must withstand internal depressions that may occur, especially after the container has been hot filled, and then closed before its contents are cooled.
  • the container as a whole, and in particular its bottom, must withstand the relatively severe thermal conditions encountered during hot filling or pasteurization.
  • the bottom wall is then generally convex outward and has feet, typically four to six feet formed by excrescences regularly distributed on the bottom, and separated in pairs by a portion of the convex bottom wall.
  • These petaloid bottoms are widely used for containers containing carbonated beverages.
  • the radial recesses separating the feet absorb the forces due to the pressurization during filling and maintain the bearing surfaces of the feet in a plane substantially perpendicular to the axis of the container. This solution is not always satisfactory. Under the effect of internal pressure, the petaloid bottoms may burst.
  • the petaloid bottoms can not always withstand the overpressure due to the increase in volume of the contents of the bottle, during a pasteurization.
  • Funds such as the one described in document FR 2 822 804 of the plaintiff. It describes a bottle bottom comprising in its central part a multi-branch cross-shaped footprint, this bottom being more petaloid type, each foot being provided with a stress absorption notch, separated radially from the end of the bottle. the corresponding branch of the cross-print.
  • the introduction of these stress absorption notches allows, when constraints are experienced by a foot, the location at the notch of the deformation that can result.
  • the installation of these notches leads to two more support zones on either side of each notch, these notches being partly placed in the seating area of the bottle.
  • the aim of the invention is to provide a new bottle bottom structure whose set of individual characteristics makes it possible to obtain a resistance superior to that of most funds currently known, and allows it to recover its shape after deformation.
  • a bottom according to the invention will be more resistant than most previously known bottoms bottoms. In particular, it will have better resistance to vacuum.
  • the invention also aims to provide a bottle having a good resistance to hot filling and good resistance to pasteurization, while considering a possible significant lightening of the entire container, compared to known structures. Overall lightening of the container, from 5% to 20% is thus envisaged.
  • An axial pellet 12 protrudes into the transverse central portion 11, this pellet 12 axial projecting downwards, that is to say the outside of the container provided with the bottom 4.
  • These radial ribs 1 have an inner edge 14 coming close to the transverse central portion 11, but without reaching this transverse central portion 11.
  • a bottle comprising a bottom according to the invention also has good impact resistance on the lower part of the side wall.
  • the presence of the notches 2 reduces the risk of plastic deformation of the bottle in the connection area between the side wall of a container and its seat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Claims (13)

  1. Hohlkörperboden, der durch Blasformen oder Streckblasformen einer thermoplastischen Vorform erzielt wird, wobei dieser Boden eine Querauflagefläche aufweist, und zu beiden Seiten dieser Querauflagefläche:
    - einen Außenquerrand (7);
    - eine konkave Innenwand mit einem zentralen Querteil (11), der eine Pastille (12) aus Werkstoff mit geringer Kristallinität aufweist, wobei diese Pastille dem Einspritzpunkt der Vorform entspricht;
    wobei dieser Boden Verstärkungsrippen (1) aufweist, die einen Außenrand (13) haben, der in die Nähe des Außenquerrands (7) kommt, ohne aber diesen Außenquerrand (7) zu erreichen, wobei diese Verstärkungsrippen (1) einen Innenrand (14) haben, der in die Nähe des zentralen Querteils (11) kommt, ohne aber diesen zentralen Querteil (11) zu erreichen, wobei die Querauflagefläche aus Segmenten (6a, 6b, 6c, 6d, 6e) ausgebildet ist, die von den Verstärkungsrippen (1) unterbrochen werden, dadurch gekennzeichnet, dass dieser Hohlkörperboden (4) ferner Kerben (2) aufweist, deren distaler Endteil (24) in die Nähe des Außenrands (7) des Bodens kommt, ihn aber nicht erreicht, wobei der proximale Endteil (25) der Kerben (2) die Querauflagefläche tangiert, aber nicht in diese Querauflagefläche mündet.
  2. Hohlkörperboden nach Anspruch 1, dadurch gekennzeichnet, dass die konkave Innenwand mit Verstärkungshohlkehlen (3) versehen ist, deren distaler Endteil (30) in die Nähe eines Segments (6a, 6b, 6c, 6d, 6e) der Querauflagefläche (6) kommt, ohne aber dieses Segment (6a, 6b, 6c, 6d, 6e) zu erreichen, wobei der proximale Endteil (31) dieser Verstärkungshohlkehlen (3) in die Nähe des zentralen Querteils (11) kommt, ohne aber diesen zentralen Querteil (11) zu erreichen.
  3. Hohlkörperboden nach Anspruch 2, dadurch gekennzeichnet, dass die Verstärkungshohlkehlen (3) eine Bodenwand (26) und zwei seitliche Flügel (27, 28) umfassen und eine Symmetrieebene (29) aufweisen.
  4. Hohlkörperboden nach Anspruch 3, dadurch gekennzeichnet, dass die Kerben (2) eine Bodenwand (20) und zwei seitliche Flügel (21, 22) umfassen und eine Symmetrieebene (23) aufweisen.
  5. Hohlkörperboden nach Anspruch 4, dadurch gekennzeichnet, dass die Bodenwand (26) einer Verstärkungshohlkehle (3) im Wesentlichen in der Fluchtung der Bodenwand (20) einer Kerbe (2) platziert ist, wobei sich der proximale Endteil (31) jeder Verstärkungshohlkehle (3) zwischen zwei Verstärkungsrippen (1) erstreckt.
  6. Hohlkörperboden nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Breite der Kerben (2) zwischen 2 und 20 Millimeter liegt.
  7. Hohlkörperboden nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Tiefe der Kerben (2) zwischen 1 und 5 Millimeter liegt.
  8. Hohlkörperboden nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Pastille (12) aus Werkstoff mit geringer Kristallinität auf der Außenfläche in dem zentralen Querteil (11) vorsteht.
  9. Hohlkörperboden nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Außenrand (7) auf einer ersten Höhe (h7) im Vergleich zu der Querauflagefläche platziert ist, wobei der zentrale Querteil (11) auf einer zweiten Höhe (h11) im Vergleich zu der Querauflagefläche platziert ist.
  10. Hohlkörperboden nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mit Ausnahme der Verstärkungsrippen (1) und der Kerben (2) und Verstärkungshohlkehlen (3) der Boden (4) die Form eines Rotationskörpers um eine Achse (5) hat, die im Wesentlichen zu seiner Querauflagefläche senkrecht ist.
  11. Hohlkörperboden nach Anspruch 10, dadurch gekennzeichnet, dass er im radialen vertikalen Schnitt zwischen dem Außenrand (7) und der Querauflagefläche ein Profil aufweist, das wie folgt ist:
    - in der Nähe des Außenrands (7) in eine Richtung senkrecht zu der Querauflagefläche tangierend,
    - in der Nähe der Querauflagefläche zu dieser Querauflagefläche tangierend.
  12. Hohlkörperboden nach Anspruch 11, dadurch gekennzeichnet, dass er im radialen vertikalen Schnitt zwischen dem Außenrand (7) und der Querauflagefläche ein Parabelprofil aufweist.
  13. Hohlkörper aus Thermoplastmaterial, insbesondere Polyester, wie zum Beispiel PET, erzielt durch Blasformen oder Streckblasformen einer Vorform, wobei dieser Hohlkörper eine Seitenwand und einen Boden, der an diese Seitenwand angeschlossen ist, aufweist, wobei der Boden wie in einem der vorhergehenden Ansprüche präsentiert beschaffen ist.
EP07803870A 2006-08-08 2007-07-13 Mittels blasformen oder streckblasformen einer thermoplastischen hohlgefäss-vorform mit derartigem boden hergestellter boden eines hohlgefässes Not-in-force EP2049405B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0607213A FR2904809B1 (fr) 2006-08-08 2006-08-08 Fond de corps creux obtenu par soufflage ou etirage soufflage d'une preforme en materiau thermoplastique, corps creux comprenant un tel fond
PCT/FR2007/001208 WO2008017747A1 (fr) 2006-08-08 2007-07-13 Fond de corps creux obtenu par soufflage ou etirage soufflage d'une preforme en materiau thermoplastique corps creux comprenant un tel fond

Publications (2)

Publication Number Publication Date
EP2049405A1 EP2049405A1 (de) 2009-04-22
EP2049405B1 true EP2049405B1 (de) 2010-11-03

Family

ID=37742938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07803870A Not-in-force EP2049405B1 (de) 2006-08-08 2007-07-13 Mittels blasformen oder streckblasformen einer thermoplastischen hohlgefäss-vorform mit derartigem boden hergestellter boden eines hohlgefässes

Country Status (10)

Country Link
US (1) US8524349B2 (de)
EP (1) EP2049405B1 (de)
JP (1) JP4926249B2 (de)
CN (1) CN101522531B (de)
AT (1) ATE486785T1 (de)
DE (1) DE602007010309D1 (de)
ES (1) ES2355855T3 (de)
FR (1) FR2904809B1 (de)
MX (1) MX2009001356A (de)
WO (1) WO2008017747A1 (de)

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FR2904808B1 (fr) * 2006-08-08 2011-03-04 Sidel Participations Fond de corps creux obtenu par soufflage ou etirage soufflage d'une preforme en materiau thermoplastique, corps creux conprenant un tel fond
GB2473256B (en) * 2009-09-07 2012-04-04 Michael Pritchard A water container
JP5039762B2 (ja) * 2009-09-10 2012-10-03 石塚硝子株式会社 耐圧包装容器の底部構造
US9677690B2 (en) * 2010-02-08 2017-06-13 Thomas & Betts International, Llc Multi-purpose roof-top support
US20110303682A1 (en) * 2010-06-10 2011-12-15 Graham Packaging Company, L.P. Heat sterilizable plastic container
FR2961180B1 (fr) * 2010-06-11 2013-06-07 Sidel Participations Recipient comprenant un fond voute nervure
FR2961492B1 (fr) * 2010-06-18 2012-07-13 Sidel Participations Recipient leger a fond renforce
WO2012012898A1 (en) 2010-07-27 2012-02-02 Pipesak Inc. Pipe stand
CN101913447B (zh) * 2010-08-10 2012-07-04 广东星联精密机械有限公司 一种耐内压的pet热灌装瓶瓶底结构
US10538357B2 (en) 2011-08-31 2020-01-21 Amcor Rigid Plastics Usa, Llc Lightweight container base
WO2013033550A2 (en) * 2011-08-31 2013-03-07 Amcor Limited Lightweight container base
US10532848B2 (en) 2011-08-31 2020-01-14 Amcor Rigid Plastics Usa, Llc Lightweight container base
US9120589B2 (en) 2012-12-27 2015-09-01 Niagara Bottling, Llc Plastic container with strapped base
US10023346B2 (en) 2012-12-27 2018-07-17 Niagara Bottling, Llc Swirl bell bottle with wavy ribs
US11845581B2 (en) 2011-12-05 2023-12-19 Niagara Bottling, Llc Swirl bell bottle with wavy ribs
US8556098B2 (en) 2011-12-05 2013-10-15 Niagara Bottling, Llc Plastic container having sidewall ribs with varying depth
DE102012003219B4 (de) 2012-02-20 2025-06-26 Krones Ag Kunststoffbehältnis
EP2639197A1 (de) * 2012-03-12 2013-09-18 Sogepi Wärmebehandlungsverfahren eines Behälters, der für die Heißbefüllung und zur Langzeitlagerung vorgesehen ist, und so erhaltener Behälter
ITTV20120071A1 (it) * 2012-05-04 2013-11-05 Pet Engineering S R L Bottiglia di materiale polimerico
CH707262A2 (de) * 2012-11-30 2014-05-30 Alpla Werke Kunststoffbehälter.
CA2895524A1 (en) 2012-12-27 2014-07-03 Niagara Bottling, Llc Plastic container with strapped base
JP6153741B2 (ja) * 2013-02-28 2017-06-28 株式会社吉野工業所 合成樹脂製ボトル
FR3003848B1 (fr) * 2013-04-02 2015-04-17 Sidel Participations Recipient ayant un fond muni d'une voute a decrochement
WO2015166619A1 (ja) * 2014-04-30 2015-11-05 株式会社吉野工業所 合成樹脂製ボトル
US20160115008A1 (en) * 2014-10-24 2016-04-28 The Coca-Cola Company Containers and Processes for Filling Containers
DE102014118654A1 (de) * 2014-12-15 2016-06-16 Kautex Textron Gmbh & Co. Kg Behälter aus thermoplastischem Kunststoff sowie Verfahren zur Herstellung des Behälters
EP3233645B1 (de) * 2014-12-19 2025-07-30 The Coca-Cola Company Verfahren zur herstellung einer basis für kohlensäurehaltige flaschengetränke.
FR3057246B1 (fr) * 2016-10-06 2022-12-16 Sidel Participations Fond petaloide a vallee brisee
US20200189785A1 (en) * 2017-06-16 2020-06-18 Societe Des Produits Nestle S.A. Container having a bottom base provided with notches
FR3076818B1 (fr) * 2018-01-18 2019-12-13 Sidel Participations Recipient comprenant un fond voute presentant des bossages de rigidification repartis en bandes annulaires imbriquees
MX2020011255A (es) * 2018-04-26 2020-11-12 Graham Packaging Co Recipiente de relleno presurizado resistente al agrietamiento del anillo de pie.
JP7370248B2 (ja) * 2019-12-27 2023-10-27 株式会社吉野工業所 ボトル
AU2021202920A1 (en) * 2020-05-08 2021-11-25 Orora Packaging Australia Pty Ltd A bottle, and an insert and a mould for making the bottle
US12503268B2 (en) * 2020-12-10 2025-12-23 Amcor Rigid Packaging Usa, Llc Container base with deep inset recesses
US12129072B2 (en) * 2021-11-30 2024-10-29 Pepsico, Inc. Flexible base for aseptic-fill bottles

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CN2711047Y (zh) * 2004-06-03 2005-07-20 珠海保税区中富聚酯啤酒瓶有限公司 一种pet塑料啤酒防滑瓶
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Also Published As

Publication number Publication date
ES2355855T3 (es) 2011-03-31
FR2904809B1 (fr) 2008-10-24
US8524349B2 (en) 2013-09-03
FR2904809A1 (fr) 2008-02-15
WO2008017747A1 (fr) 2008-02-14
JP4926249B2 (ja) 2012-05-09
DE602007010309D1 (de) 2010-12-16
ATE486785T1 (de) 2010-11-15
US20100297375A1 (en) 2010-11-25
MX2009001356A (es) 2009-06-30
EP2049405A1 (de) 2009-04-22
CN101522531B (zh) 2011-09-14
JP2010500192A (ja) 2010-01-07
CN101522531A (zh) 2009-09-02

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