EP1497189B1 - Bouteille en plastique - Google Patents

Bouteille en plastique Download PDF

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Publication number
EP1497189B1
EP1497189B1 EP03747090A EP03747090A EP1497189B1 EP 1497189 B1 EP1497189 B1 EP 1497189B1 EP 03747090 A EP03747090 A EP 03747090A EP 03747090 A EP03747090 A EP 03747090A EP 1497189 B1 EP1497189 B1 EP 1497189B1
Authority
EP
European Patent Office
Prior art keywords
bottle
feet
plastic
plastic bottle
indentations
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
EP03747090A
Other languages
German (de)
English (en)
Other versions
EP1497189A1 (fr
Inventor
Christian Dornbach
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.)
Alpla Werke Alwin Lehner GmbH and Co KG
Original Assignee
Alpla Werke Alwin Lehner GmbH and Co KG
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 Alpla Werke Alwin Lehner GmbH and Co KG filed Critical Alpla Werke Alwin Lehner GmbH and Co KG
Publication of EP1497189A1 publication Critical patent/EP1497189A1/fr
Application granted granted Critical
Publication of EP1497189B1 publication Critical patent/EP1497189B1/fr
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—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 a plastic bottle according to the preamble of patent claim 1.
  • plastic containers in particular, plastic bottles are used.
  • fluid substances such as drinks, oil, cleaning utensils, cosmetics, etc.
  • plastic bottles are used for the packaging of fluid substances, such as drinks, oil, cleaning utensils, cosmetics, etc.
  • the low weight and the lower costs play a significant role in this substitution.
  • the use of recyclable plastic materials and the overall more favorable overall energy balance in their production also contribute to the consumer's acceptance of plastic containers, in particular of plastic bottles.
  • Plastic bottles have a bottle body, which is equipped with a bottleneck with a pouring opening.
  • To the bottle body which usually has a regular, preferably circular or oval cross-sectional area, includes a bottom part.
  • the bottom part comprises a bottle bottom, which closes off the bottle body and preferably a number of feet, which are separated by indentations in the bottle wall.
  • Plastic bottles with feet have compared to bottles, the bottom part of which only covers the bottom of the bottle in general to a greater tipping stability.
  • the usually flat bottle bottom can bulge due to the weight of the bottle contents. As a result, the radius of the support area decreases, and the bottle can fall over easily.
  • the formation of feet in the bottom part reinforces the bottom part to a certain extent and ensures a constant radius of the support area.
  • the known from the prior art bottles usually have a flat bottle bottom, in which there is a risk that it bulges outwards especially at an elevated internal pressure.
  • the feet are separated by relatively long axial indentations of the bottle wall, which extend to the bottom of the bottle. From the contact area of the feet approximately trapezoidal trained wall parts extend obliquely to the bottom of the bottle, which is set back axially relative to the support area.
  • the size of the indentations is necessary to give the bottom of the bottle the required rigidity so that it can not be dented by the weight and internal pressure of the bottle contents.
  • the indentations take up a relatively large amount of space axially and reduce the area available for labeling. This can be particularly difficult for plastic bottles whose height is set by standards. In addition, the high legs at the consumer often give little confidence in the stability of the bottle.
  • JP 03 063114 A various embodiments of bottle bottoms are described. In addition to those with a convex, outward curvature and relatively long feet and bottle bottoms are described in which the bottle wall merges into an annular base with an inwardly curved bottom.
  • One of the illustrations seems to show a bottle which has several feet and a bottle bottom with an inward curvature. The apex height of the curvature is significantly greater than an axial extent of the feet separating areas.
  • JP 10 305824 A likewise describes different embodiments of bottle bottoms.
  • the majority of the bottle bottoms described has a convexly outward curvature, which merges on one side of the bottle in the bottle wall and on the diametrically opposite side of the bottle in a stand feet.
  • Another embodiment variant has a stepped inwardly curved bottle bottom with a central, inner curvature. This bottle bottom is equipped with relatively long feet, which are separated by indentations whose axial extent is significantly greater than an axial height of the inner curvature.
  • a bottle bottom which has a first annular roof section, on which an inwardly directed dome is placed centrally. In the edge region, the bottle wall goes into feet feet, which are separated by indentations. The axial height of the recesses is greater than the axial height of the annular roof section or the central dome.
  • the discontinuously formed bottle bottom is flexible, so that a build-up in the bottle over or under pressure can be compensated by a deformation of the bottle bottom.
  • the object of the present invention is to avoid these disadvantages of the prior art. It is a plastic bottle to be created, which has a sufficiently high stability, especially tipping stability.
  • the space available for labeling should be optimized; In particular, a sufficiently large area for the attachment of a label should be provided even with less high bottles, for example, 0.33 1 bottles with standardized height.
  • the plastic bottle should have an appealing appearance and give consumers confidence in their stability.
  • the invention proposes a plastic bottle with a bottle body and an adjoining bottom part, which comprises a bottle bottom closing the bottle and indentations in the bottle wall separate feet before, in which the bottle bottom has a directed into the bottle interior buckle and the axial extent of the Stand legs separating indentations is substantially equal to or smaller than the axial peak height of the curvature of the bottle bottom.
  • the bottom of the bottle is provided with reinforcing ribs.
  • the reinforcing ribs additionally increase the rigidity of the inwardly curved bottle bottom.
  • the bottle bottom can be formed with a smaller wall thickness. This has advantages in terms of the inherent weight of the plastic bottle and, because of the reduced material requirements, also has an advantageous effect on the production costs.
  • the inward curvature of the bottom of the bottle gives it sufficient rigidity to sufficiently withstand the weight of the contents of the bottle and the internal pressure of, for example, CO 2 -containing drinks.
  • the greater stiffness of the bottle bottom with comparable wall thickness also makes it possible to form the indentations between the feet less pronounced. It proves to be a convenient compromise between an additional stiffening and the space required when the axial extent of the indentations in the bottle wall is equal to or less than the axial peak height of the curvature of the bottle bottom.
  • the indentations occupy significantly less space than in the plastic bottles of the prior art. As a result, a larger, continuous area is available for the labeling of the bottle.
  • the smaller indentations lead in the bottom part, in particular in the contact area of the feet to a more favorable distribution of the pressure load by the weight of the bottle contents, which has an advantageous effect on the stability of the plastic bottle.
  • the curvature of the bottle bottom is substantially dome-shaped. In this case, it has a radius of curvature which is about half of the radius to about twice the contact area of the feet.
  • plastic bottles can in principle have any desired cross-section.
  • plastic bottles whose bottom part has a regular, preferably circular or even oval cross section are preferred. These generally have a better stability and are usually cheaper to manufacture.
  • the bottom part has at least five feet, which are each separated by indentations.
  • the indentations increase the strength of the bottom part and increase the area on which the weight of the bottle contents acts.
  • each stand has at least one reinforcing rib, which extends from the contact area of the stand substantially radially in the direction of the vertex of the bottle bottom.
  • the reinforcing ribs preferably protrude from the outer wall of the bottle bottom, no filling volume is lost by the ribs.
  • the plastic bottle according to the invention is suitable for production with all conventional fabrication methods.
  • a mass-production process which is particularly advantageous for cost reasons and because of the good controllability of the bottle parameters represents the injection stretch blow molding method or, respectively, in English Injection Stretch Blow Molding ISBM.
  • FIG. 1 and 2 show a bottle designed according to the invention in an overall view (FIG. 1) and in a detailed view (FIG. 2).
  • the bottle is provided in Fig. 1 throughout the reference numeral 1.
  • It consists of a thermoplastic and is preferably in a stretch blown, in particular in the injection stretch blow molding ISBM, manufacturable. Suitable plastics are all customary for the known manufacturing thermoplastic materials, such as polyethylene terephthalate (PET) in question.
  • PET polyethylene terephthalate
  • the plastic bottle 1 has a bottle body 2, which is equipped with a bottle neck 3 with a pouring opening 4. At the bottleneck 3, for example, an external thread 5 is provided, which allows to close the bottle 1 with a screw cap.
  • To the usually cylindrical bottle body 2 includes a bottom part 6, which usually has a regular, preferably a circular cross-sectional area.
  • the bottom part 6 comprises a bottle bottom 7, which closes off the bottle body 2 and a number of feet 8, by indentations 9 in the bottle wall are separated from each other.
  • the bottle bottom 7 is arched into the interior of the bottle in the case of the plastic bottle formed according to the invention. This can be seen in particular from the sectional view in FIG. 4.
  • the curvature of the bottle bottom 7 is formed substantially dome-shaped.
  • the curvature has a radius of curvature r, which may have about half to about twice the radius s of the support area of the feet 8.
  • the radius of curvature r of the curvature is about 1.2 times greater than the radius s of the support area.
  • the radius of the support area refers to the farthest from the bottle axis contact line of the feet 8 with the ground.
  • the recesses 9 in the bottle wall have an axial length 1, which is equal to or smaller than the peak height h of the curvature of the bottle bottom. 7
  • each stand 8 has a reinforcing rib 10, which extends from the contact area of the stand 8 substantially radially in the direction of the vertex of the bottle bottom 7.
  • the reinforcing ribs 10 increase the rigidity of the inwardly curved bottle bottom 7 even more. In this case, the Vertärkungsrippen 10 extend beyond the outside of the flat bottom 7.
  • the indentations 9 have in the contact area of the feet 8 an opening width, for example, equal to or less than the width of the feet 8 in this area.
  • the recesses 9 of the illustrated embodiment have a measured from the support area of the feet 8 at extension t, which is about one third of the extension of the bottle bottom 7 in the radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Laminated Bodies (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Steroid Compounds (AREA)

Claims (7)

  1. Bouteille plastique ayant un corps de bouteille (2) et un élément de fond (6) adjacent à celui-ci qui englobe un fond de bouteille (7) terminant la bouteille (1) et des pieds (8) séparés les uns des autres par des creux (9) dans la paroi de la bouteille, moyennant quoi le fond de bouteille (7) présente un bombement dirigé vers l'intérieur de la bouteille et l'étendue axiale (1) des creux (9) séparant les pieds (8) est sensiblement inférieure ou égale à la hauteur axiale au sommet (h) du bombement du fond de bouteille (7), caractérisée en ce que le fond de bouteille (7) est doté de nervures de renfort (10).
  2. Bouteille plastique selon la revendication 1, caractérisée en ce que le bombement du fond de bouteille (7) est configuré sensiblement en forme de calotte, et a un rayon de courbure (r) qui est compris entre la moitié et le double du rayon (s) de la zone d'appui des pieds (8).
  3. Bouteille plastique selon la revendication 1 ou 2, caractérisée en ce que le fond (6) présente une section régulière, de préférence circulaire.
  4. Bouteille plastique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de fond (6) présente au moins cinq pieds (8).
  5. Bouteille plastique selon la revendication 5, caractérisée en ce que chaque pied (8) présente au moins une nervure de renfort (10) qui s'étend, essentiellement dans le sens radial, depuis la zone d'appui du pied (8) en direction du sommet du bombement du fond de bouteille (7).
  6. Bouteille plastique selon la revendication 5 ou 6, caractérisée en ce que les nervures de renfort (10) dépassent par rapport de paroi extérieure du fond de bouteille (7).
  7. Bouteille plastique selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle est fabriquée avec le procédé d'injection par soufflage avec étirage (ISBM).
EP03747090A 2002-04-25 2003-02-10 Bouteille en plastique Expired - Lifetime EP1497189B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH7092002 2002-04-25
CH709022002 2002-04-25
PCT/EP2003/001278 WO2003091117A1 (fr) 2002-04-25 2003-02-10 Bouteille en plastique

Publications (2)

Publication Number Publication Date
EP1497189A1 EP1497189A1 (fr) 2005-01-19
EP1497189B1 true EP1497189B1 (fr) 2006-05-17

Family

ID=29256410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03747090A Expired - Lifetime EP1497189B1 (fr) 2002-04-25 2003-02-10 Bouteille en plastique

Country Status (7)

Country Link
EP (1) EP1497189B1 (fr)
AT (1) ATE326392T1 (fr)
AU (1) AU2003263452A1 (fr)
DE (1) DE50303371D1 (fr)
PL (1) PL202047B1 (fr)
RU (1) RU2299162C2 (fr)
WO (1) WO2003091117A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3867164B1 (fr) * 2018-10-15 2026-01-14 PepsiCo, Inc. Bouteille en plastique comprenant une base

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
FR2910438B1 (fr) 2006-12-21 2010-12-10 Evian Saeme Sa Bouteille en plastique a fond champagne et son procede de fabrication.
ITTV20120071A1 (it) * 2012-05-04 2013-11-05 Pet Engineering S R L Bottiglia di materiale polimerico
FR3007392B1 (fr) * 2013-06-25 2016-02-05 Sidel Participations Recipient mini petaloide rainure
TWI523919B (zh) 2014-12-04 2016-03-01 財團法人工業技術研究院 具有防霧與隔熱功能之塗料組成物、其製法及薄膜

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465199A (en) * 1981-06-22 1984-08-14 Katashi Aoki Pressure resisting plastic bottle
US4403706A (en) * 1982-06-08 1983-09-13 The Continental Group, Inc. Plastic container with hollow internal rib reinforced bottom and method of forming the same
US4850493A (en) * 1988-06-20 1989-07-25 Hoover Universal, Inc. Blow molded bottle with self-supporting base reinforced by hollow ribs
JPH0363114A (ja) * 1989-08-02 1991-03-19 Toyo Seikan Kaisha Ltd 多層プラスチック容器包装体
US4978015A (en) * 1990-01-10 1990-12-18 North American Container, Inc. Plastic container for pressurized fluids
US5287978A (en) * 1990-11-15 1994-02-22 Plastipak Packaging, Inc. Plastic blow molded freestanding container
US5205434A (en) * 1992-06-09 1993-04-27 Constar Plastics, Inc. Footed container
JPH10305824A (ja) * 1995-10-31 1998-11-17 Yoshino Kogyosho Co Ltd 合成樹脂製の耐熱及び耐圧性自立型中空容器
HUP0303845A2 (hu) * 2001-04-19 2004-03-29 Graham Packaging Company, L.P. Többcélú fenékrész műanyag tartályokhoz, valamint ilyen fenékrésszel ellátott tartály

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3867164B1 (fr) * 2018-10-15 2026-01-14 PepsiCo, Inc. Bouteille en plastique comprenant une base

Also Published As

Publication number Publication date
AU2003263452A1 (en) 2003-11-10
ATE326392T1 (de) 2006-06-15
RU2299162C2 (ru) 2007-05-20
PL202047B1 (pl) 2009-05-29
RU2004134351A (ru) 2005-06-10
DE50303371D1 (de) 2006-06-22
EP1497189A1 (fr) 2005-01-19
WO2003091117A1 (fr) 2003-11-06
PL371793A1 (en) 2005-06-27

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