EP2145827A1 - Plastikflasche mit hoher Hochlastfestigkeit - Google Patents

Plastikflasche mit hoher Hochlastfestigkeit Download PDF

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Publication number
EP2145827A1
EP2145827A1 EP09075042A EP09075042A EP2145827A1 EP 2145827 A1 EP2145827 A1 EP 2145827A1 EP 09075042 A EP09075042 A EP 09075042A EP 09075042 A EP09075042 A EP 09075042A EP 2145827 A1 EP2145827 A1 EP 2145827A1
Authority
EP
European Patent Office
Prior art keywords
bottle
plastic bottle
standing ring
further characterized
concavity
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
EP09075042A
Other languages
English (en)
French (fr)
Other versions
EP2145827B1 (de
Inventor
Scott M. Ulibarri
Brad M. Clutter
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.)
Ball Corp
Original Assignee
Ball Corp
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 Ball Corp filed Critical Ball Corp
Publication of EP2145827A1 publication Critical patent/EP2145827A1/de
Application granted granted Critical
Publication of EP2145827B1 publication Critical patent/EP2145827B1/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
    • B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom

Definitions

  • the present invention is directed to plastic bottles having a champagne style bottom structure closing the bottle lower end.
  • the phrase champagne style is in reference to a base having an outside surface rotationally symmetric about a longitudinal axis of the bottle including a convex heel having an upper margin integrally formed with the lower end portion of the bottle sidewall, and a central concavity separated from the convex heel by a continuous standing ring that supports the bottle on any underlying surface.
  • Bottle bases having a standard champagne dome have long been employed with glass bottles. Consumers have become accustomed to such base configurations, particularly when the bottles contain wine, whether a sparkling wine or a non-sparkling wine.
  • the champagne dome distributes forces exerted thereon by any internal pressure of the bottle.
  • the standard champagne base also provides for a stable presentation of the bottle on a continuous standing ring.
  • the champagne base provides an adequate support during capping operations as well as during shipment. While the use of a champagne base is desirable from a consumer point of view, the application of such a base to plastic bottles has provided difficulties to the plastic bottle industry.
  • PET polyethylene terephthalate
  • PP polypropylene
  • a barrier layer can be included to inhibit the migration of gases such as oxygen as well as moisture into or out of, the bottle.
  • the barrier layer can be an intermediate extruded or injection formed layer made, for example, from ethylene vinyl alcohol (“EVOH”), or an interior layer such as a barely perceptible layer of glass, applied by plasma after the bottle is formed.
  • EVOH ethylene vinyl alcohol
  • a standard practice used to blow mold plastic bottles having a champagne base is to slightly increase the thickness of a majority of the base relative to the thickness of the remainder of the bottle. Preforms used to construct a bottle having such a base are known and do not require complex configurations. However, other attempts to blow mold an acceptable plastic bottle have placed material concentrations in specific predetermined areas of the base to increase the amount of stress that can be withstood without failing.
  • One such prior art base configuration uses a stepped base to increase the thickness of the dome to a thickness that is substantially thicker than the dome of a standard base.
  • Another prior art plastic bottle having a champagne base designed for enhanced pressure within the bottle includes a reinforced hoop to deter the champagne dome from inverting due to the enhanced internal pressure of the bottle.
  • a plastic bottle has a sidewall and a bottom structure closing the bottle at a lower end portion of the sidewall, the bottom structure providing superior resistance to failure when the bottle is subjected to a vertical load.
  • the bottom structure has an outside surface that is rotationally symmetric about a longitudinal axis of the bottle.
  • the bottom outside surface can include a convex heel having an upper margin of diameter D integrally formed with the lower end portion of the sidewall.
  • a lower margin of the convex heel can lead to a continuous planar standing ring lying in a plane perpendicular to the longitudinal axis of the bottle that can support the bottle on any underlying surface.
  • a central concavity is provided inside the standing ring.
  • the central concavity can include a first surface defined by a circular cone inclined with respect to the plane of the standing ring, with the first surface having a lower most portion smoothly joining the standing ring.
  • the inside vertical radius of curvature of the lower margin of the convex heel and the lower most portion of the first surface can be suitably dimensioned in relation to the diameter D to achieve the desired enhanced top load failure resistance.
  • the lower margin of the convex heel can have an inside vertical radius of less than 0.11 D.
  • the lower margin of the convex heel leading to the planar standing ring can have an inside vertical radius of between 0.039D and 0.067D.
  • a portion of the convex heel above the lower margin of the convex heel can have a vertical inside radius of curvature of between 1.26D and 1.42D.
  • the lower most portion of the first surface can have an inside vertical radius of less than 0.10D.
  • the lowermost portion of the inside concavity first surface can have an inside vertical radius of between 0.055D and 0.084D.
  • a portion of the inside concavity first surface above the lowermost portion of the first surface can be inclined at an angle of between 35° and 40° with respect to a plane formed by the standing ring.
  • the central concavity can also include a second surface joined to an upper margin of the first surface by a concave ring.
  • the second surface can be a downwardly convex dome centered on the longitudinal axis of the bottle.
  • the inside concavity second surface can have a radius of curvature of between 0.23D and 0.27D.
  • the inside concavity second surface can have a lowermost nadir situated between 0.14D and 0.16D above the standing ring.
  • the concave ring joining the inside concavity first surface to the inside concavity second surface can have an outside vertical radius of between 0.059D and 0.066D.
  • the planar standing ring of the bottle can have a width of between 0.015D and 0.021 D.
  • the planar standing ring should have a diameter as large as possible to enhance bottle stability.
  • the standing ring can have an inner diameter of between 0.73D and 0.82D. The planar character of the standing ring helps assure the bottle will remain upright on any underlying supporting surface.
  • Each of these features contributes to a low gram weight bottle especially designed for containing wine having superior resistance to failure when subjected to a vertical force.
  • a low gram weight bottle especially designed for containing wine having superior resistance to failure when subjected to a vertical force.
  • a somewhat similar 750ml bottle made with the same amount of plastic and having features that differed in only small respects, detailed below in the comparative example, failed when subjected to a vertical force of less than 165 kg.
  • Figure 1 is a side elevation view of a bottle.
  • Figure 2 is a sectional outline of the exterior surface of the base of the bottle shown in Figure 1 taken through the axis of the bottle.
  • a plastic bottle 10 is shown in Figure 1 to have a base 12, which will be detailed below.
  • a sidewall 14 extends upward from the base 12.
  • the diameter of the bottle 10 at the junction of the base 12 and sidewall 14 is given the dimension D.
  • the sidewall 14 is shown to have a right cylindrical configuration, other configurations for the sidewall 14 are also contemplated.
  • a shoulder 16 unitarily joins the top of the sidewall 14 to a neck 18.
  • a finish portion 20 is provided at the top of the neck 18 to which a suitable closure, not shown, can be applied to seal an opening 22 that is present at the top of the bottle 10.
  • the bottle 10 has an overall height H, and is generally symmetric about a vertical axis Y extending from the center of the base 12 to the center of the opening 22.
  • the base 12 of the bottle 10 is shown in detail in Figure 2 to include a convex heel 24 extending downward from the sidewall 14.
  • An upper portion 26 of the heel 24 is defined by an inside vertical radius R1, while a lower portion 28 of the heel 24 is defined by a smaller inside vertical radius R2.
  • a continuous planar standing ring 30 joins the heel lower portion 28 to a central concavity 32 situated within the standing ring 30.
  • the standing ring 30 has a horizontal surface of width W and an inner diameter S.
  • the standing ring 30 lies in a horizontal plane X that is generally perpendicular to the longitudinal axis Y of the bottle 10.
  • the central concavity 32 includes a first surface 34 having a lowermost portion 36.
  • the first surface lowermost portion 36 is defined by a vertical inside radius R3 and smoothly joins the standing ring 30 to a portion 38, which can be conical.
  • the conical portion 38 can extend upward from the lowermost portion 36 at an angle ⁇ with respect to the plane X.
  • An upper margin of the conical portion 38 can be joined to a second surface 40 by a concave ring 42.
  • the second surface 40 can be defined by a vertical inside radius R4 that can be centered on the vertical axis Y.
  • the nadir 44 of the second surface 40 can be aligned with the vertical axis Y at a distance C above the plane X.
  • the concave ring 42 can be defined by a vertical outside radius R5.
  • Table I provides the various dimensions for both a comparative example bottle 1A that failed to perform satisfactorily and some working examples of bottles that did perform satisfactorily. All of the bottles reported in Table I were made from preforms having approximately 55 grams of plastic, including bottle 3.1A, which is designed to contain 1 liter of liquid while the remaining bottles of Table I are designed to contain only 750ml. It will be noted that certain of the dimensions overlap for both satisfactory bottles and un-satisfactory bottles while other dimensions identify a clear separation between success and failure under the top load test.
  • the inside vertical radius R1 of the upper portion of the heel 26 in the failing bottle 1A has the same dimension as in two bottles that were successful. It will be further noted that the radius R1 can have a range of values that are successful. The radius R1 for satisfactory bottles can have a range of values from 1.42D down to 1.26D. When radius R1 is increased much beyond 1.42D, the base has a tendency to fold under itself under below-standard top loads. When the radius R1 is reduced much below 1.26D, some difficulty is observed in the complete formation of the heel.
  • the inside vertical radius R4 of the second surface 40 in successful bottles can be larger, smaller or the same size as the failing bottle 1A.
  • the radius R4 can have a range of values from 0.23D to 0.27D.
  • the radius R4 may be able to assume values even outside this range.
  • outside vertical radius R5 of the ring 42 joining the conical portion 38 to the second surface 40 in successful bottles can be larger, smaller or the same size as the failing bottle 1A.
  • the radius R5 can have a range of values from 0.059D to 0.066D. The radius R5 may be able to assume values even outside this range.
  • the width W of the standing ring 30 in the failing bottle 1A has the same dimension as in two bottles that were successful. It will be further noted that the width W can have a range of values that are successful. The width W for satisfactory bottles can have a range of values from 0.021 D down to 0.016D. The width W may be able to assume values even outside this range.
  • the height C of the nadir 44 of the second surface portion 40 above the standing ring 30 for successful bottles can be larger, smaller or the same size as the failing bottle 1A.
  • the height C for satisfactory bottles can have a range of values from 0.159D down to 0.143D. The height C may be able to assume values even outside this range.
  • radius R2 One dimension that clearly separates successfully performing bottles from unsuccessful bottles is the vertical inside radius R2 of the lowermost portion 28 of heel 24. Distinctly smaller radius values for radius R2 perform satisfactorily while larger radius values appear to contribute to failure.
  • the radius R2 should have a value of less than 0.11 D, and should preferably have a value between 0.039D and 0.067D.
  • radius R3 Another dimension that separates successfully performing bottles from unsuccessful bottles is the vertical inside radius R3 of the lowermost portion 36 of the central concavity first surface 34. Distinctly smaller radius values for radius R3 perform satisfactorily while larger radius values also appear to contribute to failure.
  • the radius R3 should have a value of less than 0.10D, and should preferably have a value between 0.055D and 0.084D.
  • the diameter S of the standing ring 30 Another dimension that separates successfully performing bottles from unsuccessful bottles is the diameter S of the standing ring 30. Greater values for the diameter S are preferred over smaller values as they contribute to enhanced stability for the bottle.
  • the diameter S can have a value of greater than 0.74D, and should preferably have a value between 0.75D and 0.82D. This greater diameter S can only be achieved through the adoption of the smaller values for R2 and R3 as discussed above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP09075042A 2008-07-16 2009-01-23 Plastikflasche mit hoher vertikaler Drucklastfestigkeit Not-in-force EP2145827B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/173,910 US20100012617A1 (en) 2008-07-16 2008-07-16 Plastic bottle with superior top load strength

Publications (2)

Publication Number Publication Date
EP2145827A1 true EP2145827A1 (de) 2010-01-20
EP2145827B1 EP2145827B1 (de) 2011-08-10

Family

ID=41100846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09075042A Not-in-force EP2145827B1 (de) 2008-07-16 2009-01-23 Plastikflasche mit hoher vertikaler Drucklastfestigkeit

Country Status (6)

Country Link
US (1) US20100012617A1 (de)
EP (1) EP2145827B1 (de)
AU (1) AU2008264203A1 (de)
CA (1) CA2648163A1 (de)
MX (1) MX2009003453A (de)
NZ (1) NZ574816A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013182541A1 (en) * 2012-06-05 2013-12-12 Societe Anonyme Des Eaux Minerales D'evian Blow moulded bottle, method of manufacturing and mould
FR2998306A1 (fr) * 2012-11-22 2014-05-23 Yann Franquet Procede de bonification d’une boisson obtenue par fermentation alcoolique telle que le vin et bouteille permettant de le mettre en oeuvre
CN104859912A (zh) * 2015-05-31 2015-08-26 南京绿庭农业科技有限公司 一种具备多种颜色变化的酒瓶
US12054304B2 (en) 2022-06-03 2024-08-06 Abbott Laboratories Reclosable plastic bottle with waist and strengthening rib(s)

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US8668100B2 (en) 2010-06-30 2014-03-11 S.C. Johnson & Son, Inc. Bottles with top loading resistance
US8851311B2 (en) 2010-12-06 2014-10-07 S.C. Johnson & Son, Inc. Bottle with top loading resistance
US8662329B2 (en) 2010-12-06 2014-03-04 S.C. Johnson & Son, Inc. Bottle with top loading resistance with front and back ribs
USD660714S1 (en) 2010-12-06 2012-05-29 S.C. Johnson & Son, Inc. Bottle
USD797560S1 (en) * 2016-02-18 2017-09-19 Franke Technology And Trademark Ltd. Bar bottle
USD798711S1 (en) 2016-02-18 2017-10-03 Franke Technology And Trademark Ltd. Pour top for beverage container
US9896248B2 (en) 2016-02-18 2018-02-20 Franke Technology And Trademark Ltd. Bar bottle
JP2018108825A (ja) * 2016-12-28 2018-07-12 サントリーホールディングス株式会社 樹脂製容器
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
US11972680B2 (en) * 2020-06-12 2024-04-30 Gojo Industries, Inc. Base for table top sanitizer dispensing bottles and dispenser bottles
US10894625B1 (en) 2020-07-29 2021-01-19 Verre Vert, Inc. Lightweight polymer bottle for wine and spirits
US12012253B1 (en) * 2023-03-02 2024-06-18 Verre Vert, Inc. Lightweight polymer wine bottle suitable for use with natural cork or synthetic stoppers

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013182541A1 (en) * 2012-06-05 2013-12-12 Societe Anonyme Des Eaux Minerales D'evian Blow moulded bottle, method of manufacturing and mould
CN104540741A (zh) * 2012-06-05 2015-04-22 埃维昂矿泉水有限公司 吹塑瓶、制作方法及模具
FR2998306A1 (fr) * 2012-11-22 2014-05-23 Yann Franquet Procede de bonification d’une boisson obtenue par fermentation alcoolique telle que le vin et bouteille permettant de le mettre en oeuvre
CN104859912A (zh) * 2015-05-31 2015-08-26 南京绿庭农业科技有限公司 一种具备多种颜色变化的酒瓶
US12054304B2 (en) 2022-06-03 2024-08-06 Abbott Laboratories Reclosable plastic bottle with waist and strengthening rib(s)

Also Published As

Publication number Publication date
AU2008264203A1 (en) 2010-02-04
EP2145827B1 (de) 2011-08-10
CA2648163A1 (en) 2010-01-16
US20100012617A1 (en) 2010-01-21
NZ574816A (en) 2010-03-26
MX2009003453A (es) 2010-03-01

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