EP2091824B1 - Bouteille en matière plastique et récipient similaire en matière plastique - Google Patents

Bouteille en matière plastique et récipient similaire en matière plastique Download PDF

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Publication number
EP2091824B1
EP2091824B1 EP07818997A EP07818997A EP2091824B1 EP 2091824 B1 EP2091824 B1 EP 2091824B1 EP 07818997 A EP07818997 A EP 07818997A EP 07818997 A EP07818997 A EP 07818997A EP 2091824 B1 EP2091824 B1 EP 2091824B1
Authority
EP
European Patent Office
Prior art keywords
plastic bottle
bottle according
grooves
plastic
longitudinal
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
EP07818997A
Other languages
German (de)
English (en)
Other versions
EP2091824A1 (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 EP2091824A1 publication Critical patent/EP2091824A1/fr
Application granted granted Critical
Publication of EP2091824B1 publication Critical patent/EP2091824B1/fr
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—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
    • 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
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/44—Corrugations
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0027—Hollow longitudinal ribs
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0036—Hollow circonferential ribs

Definitions

  • the invention relates to a plastic bottle and the like plastic container according to the preamble of patent claim 1.
  • plastic containers The usual in the past containers made of white or stained, glass or ceramic are increasingly being replaced by plastic containers.
  • plastic containers are used for the packaging of pourable media, such as cleaning utensils, personal care products, cosmetics, automotive media, etc.
  • the low weight and the lower costs certainly 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.
  • PET polyethylene terephthalate
  • injection stretch blow molding process which is a combination of injection molding and blow molding.
  • a PET preform is produced in an injection molding process in an injection mold.
  • flow molding processes for the production of preforms have been proposed.
  • the preform has a substantially elongated, cylindrical body and is formed closed at one longitudinal end.
  • a support ring separates the body from a neck portion with a pouring spout.
  • the neck portion usually already has the later shape of the bottle neck. On the outside of the neck portion threaded portions or the like are already formed for the determination of a closure part.
  • the preform is demoulded after its manufacture and immediately further processed or stored for later processing on a blow molding machine. Before further processing in a blow molding machine, the preform is conditioned if necessary; then it is introduced into a blow mold of a blow molding machine. In the blow mold, the preform Finally, inflated by a gas injected with excess pressure according to the mold cavity and additionally stretched with a stretching mandrel.
  • An injection blow molding process is also already known, in which the blowing process takes place directly after the injection of the preform.
  • the preform remains on the injection core, which also forms the stretching mandrel.
  • the preform is in turn inflated by overpressure according to the mold cavity of a blow mold, which is delivered to the injection core or vice versa, and thereby stretched by the stretching mandrel. Thereafter, the finished Kunststoffsfoffflasche is removed from the mold.
  • the extrusion blow molding machines used for the extrusion blow molding process usually have one or more extruders for feeding the required plastic material.
  • the output of the extruder is connected to an extruder head, at the outlet opening of which is preferably adjustable in the opening width of the extruded tube exits.
  • the extruded plastic tube can be constructed in one or more layers.
  • the hose exiting the outlet nozzle continuously or quasi-continuously is transferred to a blow mold and inflated by overpressure with the aid of a blow mandrel inserted into the mold cavity. Thereafter, the inflated plastic bottle is removed from the mold cavity.
  • Plastic bottles and similar plastic containers are produced in very high numbers and are therefore constantly the subject of optimizations in order to save costs. For cost reasons, but also for ecological reasons, therefore, also attempts to save material. On the other hand, on the other hand, always the required stiffness of the plastic bottles must be considered. This sets limits, especially for plastic bottles with a filling volume of 50 ml to 300 ml, to the efforts of technicians and designers.
  • Object of the present invention is therefore to provide a plastic bottle having the required rigidity.
  • the required stiffness without be achieved additional use of materials.
  • the existing manufacturing processes should not have to be changed.
  • a plastic bottle and the like container for receiving fluid substances has an elongate body, one side of which is closed by a bottom and the opposite side merges into a neck portion with a pouring opening.
  • a shoulder portion extends from the neck portion to a larger diameter portion of the body. At least in part of its axial and circumferential extent, the shoulder portion is patterned. In the shoulder portion two or more rings of geometric structures are arranged, which are separated by transverse grooves. To improve the rigidity bond, another Quemille forms the conclusion of the shoulder section to the body.
  • the structures in the shoulder portion of the plastic bottle give the bottle the desired rigidity. Even with further optimizations by material savings in the shoulder section, the plastic bottle provided with the structuring has at least the same rigidity as a comparable plastic bottle with greater wall thickness. If the wall thickness remains the same, the rigidity is increased. As a result, the plastic bottle is shelf-stable, and it can also be used for filling plants at elevated temperatures.
  • the structurings are preferably arranged uniformly along the circumference extension of the shoulder section and are formed as repeating, geometrically arranged basic structures arranged in a ring.
  • the repetitive, annularly arranged geometric basic structures are easy to create and lead directly to an increased rigidity of the structured areas.
  • the repeated over the circumference of the shoulder portion geometric basic structures lead to a uniform over the circumference gain of the wall area. This makes it possible to adapt the geometric basic structures provided in the shoulder section to the contour of the plastic bottle and to design it according to this contour.
  • a variant of the plastic bottle provides that the geometric structures are separated from one another by grooves extending essentially in the longitudinal direction of the body.
  • the longitudinally extending grooves may be arranged parallel to the longitudinal axis or include with the longitudinal axis of the body at an angle of up to 45 °.
  • the geometric basic structures can thus have longitudinal sides which run or are tilted in a projection parallel to the longitudinal axis of the body.
  • transverse and / or longitudinal grooves have a depth of about 0.5 mm to about 1.5 mm.
  • the transverse grooves and the longitudinal grooves may also have different depths from each other.
  • the rigidity is further increased by the fact that the transverse and / or longitudinal grooves have a groove bottom whose width measured perpendicular to the groove profile is approximately 0.2 mm to approximately 1.2 mm.
  • An expedient variant of the plastic bottle provides that the walls of the transverse and / or longitudinal grooves together include an opening angle which is about 50 ° to about 100 °.
  • the enclosed by the walls of the transverse grooves and the longitudinal grooves angle can be different from each other.
  • the structurally arranged structuring 9 to 15, preferably. 10 to 14 has geometric basic structures which are arranged uniformly over the circumference.
  • a very expedient embodiment variant of the invention provides that two or more rings of geometric basic structures are arranged in the shoulder portion.
  • Each ring has the same number of geometric basic structures, which expediently each o.a. Have numbers of basic structures and are separated by longitudinal grooves; extending over adjacent ring structures.
  • the basic structures of adjacent rings need not be identical, but may be different from each other according to the portion of the shoulder portion, for example, to accommodate different radii of curvature or different diameters.
  • trapezoidal basic structures are advantageously arranged in the neck closer portion of the shoulder portion.
  • the basic structures have a height which is 1 to 1.5 times the width of the basic structure. This results in advantageous strengths and at the same time the contour of the plastic bottle can be included in the shaping.
  • the inventive design of the plastic bottle with structuring in the shoulder section proves to be particularly useful in plastic bottles with a filling volume of 50 ml to 330 ml.
  • the structuring in the shoulder portion of the plastic bottle may be applied to plastic bottles made in a stretch blow or extrusion blow process.
  • the structuring is produced during the blowing process within the mold cavity of a blow mold. This is done simply by a corresponding Design of the walls of the mold cavity.
  • the preforms used in the stretch blow molding process remain unchanged.
  • the extrusion process in the extrusion blown process remains unchanged or no changes to the extrusion die are required.
  • An inventively designed plastic bottle is in Fig.1-3 each provided with the reference numeral 1 in total.
  • the plastic bottle 1 is a plastic bottle with a filling volume of 125 ml.
  • the plastic bottle 1 has an elongated, rotationally symmetrical body 2, one longitudinal end of which is closed by a bottom 3. At the opposite end of the body goes into a neck portion 4, which has a pouring opening 5.
  • neck portion 4 On the outside of the neck portion 4 threaded portions are formed, which allow the screwing of a closure.
  • a shoulder portion 6 extends from the neck portion 4 to a larger diameter portion 7 of the body 2.
  • the larger diameter portion 7 may not necessarily be the largest diameter portion of the body 2 of the plastic bottle 1.
  • Such plastic bottles are usually produced in a stretch blow molding process. But they can also be produced in an extrusion blown process.
  • the shoulder portion 6 of the body 2 is provided with structurings 10 over its axial extension and its circumference.
  • the structuring of two rings 11, 12 of geometric basic structures 13,14 which are arranged uniformly along the circumference of the shoulder portion 6.
  • the two rings 11, 12 of basic structures 13, 14 are separated from one another by a transverse groove 15.
  • Another transverse groove 15 forms the conclusion of the shoulder portion 6 to the larger diameter portion 7 of the body 2.
  • the basic geometric structures 13, 14 are formed substantially rectangular or trapezoidal and separated by longitudinally extending grooves 16.
  • the longitudinal grooves 16 extend in a side projection parallel to the longitudinal axis of the plastic bottle 1.
  • the longitudinally extending grooves with respect to the longitudinal axis can also be inclined up to an angle of 45 °.
  • the geometric basic structures 13, 14 have an axial height which is approximately one to one and a half times their width. It is understood that under the height and the width of the unwound mass are to be understood.
  • the neck portion 4 closer basic structures 13 have a substantially trapezoidal shape with a greater height than width.
  • the trapezoidal basic structures 13 directly adjoin the neck section 4.
  • the second ring 12 of basic structures consists of approximately square basic structures 14.
  • the number of basic structures 13, 14 is the same in the two rings 11, 12 and is typically about 9 to 15, preferably 10 to 14.
  • Fig. 4 shows on a larger scale the in Fig. 3
  • the transverse groove 15 is bounded by walls 18, 19 which typically enclose an opening angle ⁇ of 50 ° -100 ° with each other. In the illustrated section IV of the opening angle ⁇ is about 90 °.
  • the two walls 18, 19 connect to a groove bottom 17, whose Width measured transverse to the extension of the groove is about 0.2 mm to about 1.2 mm.
  • the groove 15 has a depth T of about 0.5 to 1.5 mm.
  • the dimensions of the grooves have been explained using the example of a transverse groove 15. It is understood that the dimensions of the longitudinal grooves 16 are formed analogously and fall within the specified ranges. In this case, the dimensions of the transverse grooves 15 and the longitudinal grooves may differ from each other. Usually, the longitudinal grooves have a narrower groove bottom than the transverse grooves. Also, their opening angle is typically smaller.
  • the invention has been explained using the example of a plastic bottle with a filling volume of 125 ml. In principle, the invention is not limited to such filling volumes. It can be seen that the provision of structurings 10 in the shoulder section 6, particularly in the case of plastic bottles with filling volumes of 50 ml to 330 ml, brings advantages with regard to the achievable stiffnesses. While in the illustrated embodiment, the entire shoulder portion 6 is provided with structurings 10, it is understood that they can be provided only in a partial region of the axial Clearrekkung and the circumference of the shoulder portion.
  • the structures may be formed on plastic bottles made by stretch blow molding or extrusion blow molding. It proves to be particularly advantageous if the structuring are generated during the blowing process within the mold cavity of the blow mold.

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

Claims (15)

  1. Bouteille en plastique et récipient en plastique similaire pour retenir des substances fluides, ayant un corps allongé (2), dont une extrémité longitudinale est fermée par une base (3) et dont l'extrémité opposée se fond dans une section de col (4) avec une ouverture verseuse (5), et qui comprend une section d'épaule (6) qui s'étend de la section de col (4) à une région de diamètre supérieur (7) du corps (2), et la section d'épaule (6) étant pourvue de structures (10) dans au moins une partie de sa direction axiale et circonférentielle, deux ou une pluralité d'anneaux (11, 12) de structures géométriques de base (13, 14), qui sont séparées les unes des autres par des sillons transversaux (15) étant disposés dans la section d'épaule (6) caractérisée en ce qu'un ultérieur sillon transversal (15) forme la limite de la section d'épaule (6) avec le corps (2) afin d'améliorer la rigidité.
  2. Bouteille en plastique selon la Revendication 1, caractérisée en ce que les structures (10) sont disposées de manière uniforme le long de l'étendue circonférentielle de la section d'épaule (6) et comprennent des structures géométriques de base récurrentes disposées de manière annulaire (13, 14).
  3. Bouteille en plastique selon la Revendication 1 ou 2, caractérisée en ce que les structures géométriques de base (13, 14) sont séparées les unes des autres par des sillons (16) s'étendant substantiellement dans la direction longitudinale du corps (2).
  4. Bouteille en plastique selon la Revendication 3, caractérisée en ce que les sillons (16) s'étendant dans la direction longitudinale sont disposés en parallèle à l'axe longitudinal du corps (2) dans une vue en projection.
  5. Bouteille en plastique selon la Revendication 3, caractérisée en ce que les sillons (16) s'étendant dans la direction longitudinale impliquent un angle allant jusqu'à 45 ° avec l'axe longitudinal du corps (2) dans une vue en projection.
  6. Bouteille en plastique selon une quelconque des Revendications 1 - 5, caractérisée en ce que les sillons transversaux et/ou longitudinaux (15, 16) ont une profondeur (t) d'environ 0,5 mm à environ 1,5 mm.
  7. Bouteille en plastique selon la Revendication 6, caractérisée en ce que les sillons transversaux et/ou longitudinaux (15, 16) comprennent une base de sillon (17) dont la largeur (b) mesurée perpendiculairement à l'étendue du sillon est d'environ 0,2 mm à environ 1,2 mm.
  8. Bouteille en plastique selon une quelconque des Revendications 1 - 7, caractérisée en ce que les parois (18, 19) des sillons transversaux et/ou longitudinaux (15, 16) impliquent un angle d'ouverture (a) les unes avec les autres qui est d'environ 50 ° à environ 100 °.
  9. Bouteille en plastique selon une quelconque des Revendications 1 - 8, caractérisée en ce que les structures disposées en anneaux (11, 12) comprennent 9 à 15, de préférence 10 à 14, structures géométriques de base (13, 14), qui sont disposées de manière uniforme sur la circonférence.
  10. Bouteille en plastique selon la Revendication 9, caractérisée en ce que deux ou une pluralité d'anneaux (11, 12) de structures géométriques de base (13, 14) sont disposés dans la section d'épaule (6), chaque anneau (11, 12) comprenant le même nombre de structures géométriques de base (13, 14), qui sont séparées les unes des autres par des sillons longitudinaux (16) qui s'étendent au-dessus de structures en anneau adjacentes (11, 12).
  11. Bouteille en plastique selon une quelconque des Revendications 2 - 10, caractérisée en ce que les structures géométriques de base (13, 14) sont de forme rectangulaire à trapézoïdale.
  12. Bouteille en plastique selon la Revendication 11, caractérisée en ce que les structures géométriques de base (13, 14) ont une hauteur qui est 1 à 1,5 fois leur largeur.
  13. Bouteille en plastique selon une quelconque des revendications précédentes, caractérisée en ce qu'elle a un volume de remplissage de 50 ml à 330 ml.
  14. Bouteille en plastique selon une quelconque des revendications précédentes, caractérisée en ce que les structures (10) dans la section d'épaule (6) sont produites par un procédé d'étirage-soufflage ou extrusion-soufflage à l'intérieur de l'empreinte d'un moule pour soufflage.
  15. Bouteille en plastique selon une quelconque des revendications précédentes, caractérisée en ce que les sillons longitudinaux (15, 16) ont une base de sillon plus étroite que les sillons transversaux.
EP07818997A 2006-11-23 2007-10-15 Bouteille en matière plastique et récipient similaire en matière plastique Not-in-force EP2091824B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH18892006 2006-11-23
PCT/EP2007/008926 WO2008061594A1 (fr) 2006-11-23 2007-10-15 Bouteille en matière plastique et récipient similaire en matière plastique

Publications (2)

Publication Number Publication Date
EP2091824A1 EP2091824A1 (fr) 2009-08-26
EP2091824B1 true EP2091824B1 (fr) 2012-02-15

Family

ID=37895941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07818997A Not-in-force EP2091824B1 (fr) 2006-11-23 2007-10-15 Bouteille en matière plastique et récipient similaire en matière plastique

Country Status (8)

Country Link
US (1) US20100084360A1 (fr)
EP (1) EP2091824B1 (fr)
AT (1) ATE545594T1 (fr)
BR (1) BRPI0717222B1 (fr)
ES (1) ES2382580T3 (fr)
MX (1) MX2009005436A (fr)
RU (1) RU2457915C2 (fr)
WO (1) WO2008061594A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3386872A1 (fr) * 2015-12-08 2018-10-17 Ring Container Technologies, LLC Contenant et procédé de fabrication
JP7037328B2 (ja) * 2017-10-26 2022-03-16 キリンホールディングス株式会社 樹脂製ボトル

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170622A (en) * 1977-05-26 1979-10-09 Owens-Illinois, Inc. Method of making a blown hollow article having a ribbed interior surface
US5224614A (en) * 1992-02-07 1993-07-06 The Procter & Gamble Company Non-handled lightweight plastic bottle with a substantially rigid grip design to facilitate pouring without loss of control
US5690244A (en) * 1995-12-20 1997-11-25 Plastipak Packaging, Inc. Blow molded container having paneled side wall
US5988417A (en) * 1997-11-12 1999-11-23 Crown Cork & Seal Technologies Corporation Plastic container having improved rigidity
US6213326B1 (en) * 1998-06-09 2001-04-10 Graham Packaging Company, L.P. Grippable blow-molded container providing balanced pouring capability
UA3389S (uk) * 1998-12-29 2000-02-28 Пемі Трейд С Р О Пляшка для напоїв
USD431192S (en) * 1999-05-28 2000-09-26 Graham Packaging Company L.P. Jug-style dome for a plastic container
US6497333B1 (en) * 2000-05-09 2002-12-24 Paradigm Packaging, Inc. Panel stiffeners for blow-molded plastic containers
JP2003285814A (ja) * 2002-03-27 2003-10-07 Yoshino Kogyosho Co Ltd 合成樹脂製壜体
JP4679038B2 (ja) * 2003-02-28 2011-04-27 株式会社吉野工業所 合成樹脂製ボトル型容器
RU44106U1 (ru) * 2004-11-04 2005-02-27 Общество с ограниченной ответственностью "Петромасло" Бутылка
DE102007049750A1 (de) * 2007-10-16 2009-04-23 Krones Ag Pouch-Flasche

Also Published As

Publication number Publication date
BRPI0717222B1 (pt) 2018-05-22
RU2457915C2 (ru) 2012-08-10
MX2009005436A (es) 2009-06-02
ES2382580T3 (es) 2012-06-11
EP2091824A1 (fr) 2009-08-26
BRPI0717222A2 (pt) 2013-09-24
US20100084360A1 (en) 2010-04-08
ATE545594T1 (de) 2012-03-15
RU2009123842A (ru) 2011-01-10
WO2008061594A1 (fr) 2008-05-29

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