ES2529750T3 - Preforma que comprende elementos de refuerzo - Google Patents

Preforma que comprende elementos de refuerzo Download PDF

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Publication number
ES2529750T3
ES2529750T3 ES10776505.9T ES10776505T ES2529750T3 ES 2529750 T3 ES2529750 T3 ES 2529750T3 ES 10776505 T ES10776505 T ES 10776505T ES 2529750 T3 ES2529750 T3 ES 2529750T3
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ES
Spain
Prior art keywords
preform
ribs
side wall
figures
wall
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.)
Active
Application number
ES10776505.9T
Other languages
English (en)
Inventor
A.B.M. Bazlur Rashid
Patrick Ryan Walker
Robert Lepior
Eric Didier
Eric Lupke
David Hutts
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.)
Nestec SA
Original Assignee
Nestec SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42331072&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2529750(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nestec SA filed Critical Nestec SA
Application granted granted Critical
Publication of ES2529750T3 publication Critical patent/ES2529750T3/es
Active 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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/44—Checking density of material to be filled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • 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
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • 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
    • 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
    • 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
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/44—Corrugations
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
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    • B65D35/08—Body construction made in one piece from plastics material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • B29C2949/0746—Preforms or parisons characterised by their configuration having ribs or protrusions at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • B29C2949/0747—Preforms or parisons characterised by their configuration having ribs or protrusions at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0777—Tamper-evident band retaining ring
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    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
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    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
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    • 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
    • B65D2501/0045—Solid ribs
    • 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]
    • 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]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • 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]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y10T428/1383—Vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers [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
    • Y10T428/13—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]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

Una preforma (200) para el moldeado por soplado de un recipiente (300) que comprende: - una parte de cuello, - una parte intermedia, y - una parte del cuerpo ubicada en el extremo cerrado de la preforma, caracterizada porque la preforma adicionalmente comprende por lo menos dos elementos de refuerzo alargados (210) provistos en el lado del interior (206b) de la pared lateral (206) de la parte intermedia de la preforma (200), dichos elementos de refuerzo extendiéndose en una dirección perpendicular al eje longitudinal (I) de la preforma (200) y está formada por un escalón de la pared lateral (206) de la preforma (200), en el que en el escalón el diámetro del lado interior (206b) de la pared lateral (206) disminuye abruptamente, mientras que el diámetro del lado exterior (206a) de la pared lateral (206) disminuye gradualmente.

Description

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Las figuras 6A y 6B muestran otra vez una sección transversal vertical y una sección transversal horizontal a través de un tercer ejemplo de una preforma 1.
En esta preforma no está provisto un grosor sustancialmente constante de la pared lateral 6, sino que en cambio se proporciona un grosor de la pared lateral 6 que varía constantemente. De ese modo, el grosor de la pared lateral 6 a lo largo de la dirección vertical es siempre constante pero variando a lo largo de la dirección horizontal de la pared lateral. Como se puede ver a partir de la figura 6B están provistas ranuras o muescas 20 que tienen un grosor de pared mínimo d0 de la pared lateral 6. Entre cada dos ranuras 2 está prevista una parte de grosor máximo 21 que tiene el grosor máximo d1. El grosor de la pared de la pared lateral 6 de ese modo aumenta o disminuye constantemente entre las ranuras 20 y las partes de grosor máximo 21.
De este modo la preforma comprende elementos de refuerzo verticales o en otras palabras comprende partes alargadas de diferentes grosores de la pared que se extienden a lo largo de una dirección vertical.
Las figuras 7A y 7B muestran un cuarto ejemplo de una preforma. Al igual que en el ejemplo representado en las figuras 6A y 6B en este cuarto ejemplo el grosor de la pared lateral 6 a lo largo de la dirección horizontal varia. De este modo, otra vez, están provistas ranuras o muescas 22 que tienen un grosor de la pared mínimo y están provistos salientes o nervios 11 que tienen un grosor de la pared máximo.
Entre cada dos ranuras 22 está provisto un saliente 11. El grosor de la pared de la pared lateral 6 en contraste con el tercer ejemplo no disminuye ni aumenta constantemente, sino que aumenta a una velocidad más elevada cerca de los salientes o en otras palabras aumenta a una velocidad inferior cerca de las ranuras 22. De ese modo las ranuras tienen una forma redondeada o cóncava.
Las figuras 8 a 13 explican ahora diversas posiciones y formas diferentes de nervios verticales según una preforma ejemplar 1. Cada una de las figuras 8 a 13 muestra una sección transversal de una preforma 1. De ese modo, para una mejor explicación la figura 8 muestra una sección transversal de una preforma según la técnica anterior.
Como se puede ver a partir de la figura 8 la preforma según la técnica anterior tiene una pared lateral 600 que tiene un grosor de la pared constante d y no tiene nervios y/o ranuras.
La figura 9 muestra una sección transversal de una preforma que tiene un grosor sustancialmente constante d de la pared lateral 6 a lo largo de una dirección horizontal y que tiene nervios 12 en la superficie interior de la pared lateral
6. En el ejemplo representado en la figura 9 están provistos cuatro nervios interiores con una distancia constante entre ellos y que tienen una sección transversal en forma de un triángulo con una esquina superior redondeada.
La figura 10 muestra un ejemplo en el que otra vez la preforma tiene un grosor de la pared sustancialmente constante d de la pared lateral 6 y en la que están provistos cinco nervios 10 en la superficie interior 6a de la preforma. Los nervios 10 en este ejemplo tienen una sección transversal sustancialmente triangular.
En el ejemplo representado en las figuras 11 a 13 se representan secciones transversales de preformas que tienen nervios 12, 13 con una sección transversal de un semicírculo. Sin embargo, las figuras 11 a 13 están pensadas para mostrar diferentes posiciones posibles de los nervios y los ejemplos no están limitados a la sección transversal específica de los nervios representados.
En la figura 11 los nervios 16 están provistos únicamente en la superficie exterior 6b de la pared interior 6.
En la figura 12 están provistos nervios interiores 12 así como nervios exteriores 13. En la forma de realización representada en la figura 12 está provisto un número igual de nervios interiores 12 que de nervios exteriores 13. De ese modo, los nervios interiores 12 y los nervios exteriores 13 están desplazados unos de otros, de modo que en una posición a lo largo de la pared lateral 6 en donde está provisto un nervio exterior 13 no está provisto un correspondiente nervio interior 12.
Un ejemplo adicional se representa en la figura 13 en donde al igual que en la figura 12, están provistos un número igual de nervios interiores 12 que de nervios exteriores 13. Sin embargo, en este ejemplo los nervios no están desplazados unos respecto a los otros sino provistos en lados opuestos de la pared lateral 6.
La figura 14 muestra una sección transversal de una preforma que tiene cuatro nervios interiores 12. Adicionalmente en la figura 14 se representa una parte 30 de un recipiente final el cual se moldea por soplado a partir de la correspondiente preforma 1 que tienen una configuración como se representa en la figura 14.
La parte 30 del recipiente final está representada con líneas discontinuas. Como se puede ver, la pared lateral 6 de la preforma resultará en una correspondiente pared lateral 31 del recipiente. La pared lateral 31 también tiene un lado interior 31a y un lado exterior 31b. El nervio interior 12 de la preforma resultará en los correspondientes nervios interiores 32 o salientes o elementos de refuerzo en el recipiente final. La transición desde el nervio interior 12 de la
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Como nervios también pueden estar provistos nervios rectangulares 18 como se representa en la figura 21. También es posible cualquier otra sección transversal de los nervios sobre la base de secciones transversales elípticas, trapezoidales, o de otro tipo.
Las secciones transversales posibles de los nervios descritas antes se aplican a cualquier clase de nervio, esto es horizontal, vertical, en diagonal o en cualquier otra dirección.
La figura 22 muestra una sección transversal de una preforma que tiene nervios horizontales exteriores 15 según un ejemplo. También se representa en la figura 22 una parte 30 de un recipiente final moldeado por soplado a partir de una preforma de este tipo 1.
Como se puede ver el recipiente final en este caso comprende una pared lateral 31 que tiene un lado exterior sustancialmente plano 31b y un lado interior 31a que tienen nervios exteriores lisos 34. Mediante la utilización de nervios los cuales ya están provistos en el interior de la preforma en lugar de nervios unidos al recipiente durante el proceso de moldeado por soplado, se puede conseguir una superficie interior lisa y sustancialmente continua.
La posibilidad de proporcionar nervios interiores 34 en el recipiente final adicionalmente es únicamente posible cuando se proporciona una preforma con nervios interiores 14. Una preforma y el correspondiente recipiente adicionalmente tiene la ventaja de que no estarán presentes salientes en el lado exterior, de modo que se simplifican las aplicaciones de etiquetado. El etiquetado se mejora puesto que ocurren menos problemas con arrugas o con las líneas de referencia. Esto también hace más estético el aspecto del recipiente final.
En las figuras 23A y 23B se representan diferentes posibilidades de colocación de los nervios según los ejemplos y la forma de realización de la presente invención, respectivamente. En estas figuras se representa esquemáticamente una preforma 1 y la parte del cuello 2 también está indicada esquemáticamente. Como ya se ha explicado, en la parte del cuello 2 no se representan nervios o ranuras en las figuras, sin embargo también pueden estar provistos nervios y/o ranuras en la parte del cuello 2.
La figura 23A muestra un ejemplo con nervios verticales 40 que se extienden a lo largo de la longitud vertical completa de la pared lateral desde la parte del cuello 2 hasta el fondo 7.
La figura 23B muestra un ejemplo con nervios verticales 41, los cuales se extienden parcialmente a lo largo de la longitud vertical de la pared lateral. Los nervios 41 se pueden extender a lo largo de una parte superior de la pared lateral 6 empezando desde la parte del cuello 2, se pueden extender a lo largo de una parte inferior de la pared lateral 6 empezando desde el fondo o se pueden extender en una parte media de la pared lateral 6 y estando separados de la parte del cuello 2 así como de la parte del fondo 7.
Los nervios verticales 40, 41 como se representa en las figuras 23A y 23B pueden estar provistos en el lado interior de la pared 6 y/o en el lado exterior de la pared 6.
La figura 23C muestra un ejemplo con nervios horizontales exteriores 42 que se extienden a lo largo de la dirección circunferencial completa de la pared lateral 6.
La figura 23D muestra un ejemplo con nervios horizontales exteriores 43 que se extienden únicamente parcialmente a lo largo de la dirección circunferencial de la pared lateral 6. El mismo diseño que el representado en las figuras 23C y 23D puede ser aplicado a la forma de realización de la presente invención. Esto significa que los elementos de refuerzo 210 de la preforma 200 representada en la figura 1 también se pueden extender a lo largo de la dirección circunferencial completa de la pared lateral 206, o se pueden extender únicamente parcialmente a lo largo de la dirección circunferencial de la pared lateral 206.
Las ventajas de los ejemplos y de las formas de realización se pondrán de manifiesto adicionalmente a partir de los diagramas de las figuras 24 y 25. El diagrama en el eje Y muestra la fuerza en kgf, la cual fue ejercida en la parte superior de una botella la cual fue fabricada a partir de una preforma provista de nervios verticales. En el eje X se representa la deflexión de la botella en milímetros.
De ese modo, las figuras 24 y 25 muestran la comparación entre una botella fabricada a partir de una preforma con nervios de refuerzo y una botella fabricada a partir de una preforma normal del mismo peso de material. El gráfico representado con líneas discontinuas es el que resulta a partir de la preforma normal. El diagrama de la figura 24 de ese modo muestra el caso de la medición de la carga superior con botellas vacías y la figura 25 muestra el caso de la medición de la carga superior con botellas llenas.
Como se puede ver a partir de ambos diagramas las botellas fabricadas a partir de las preformas con nervios de refuerzo según los ejemplos y las formas de realización son capaces de soportar fuerzas más elevadas antes de que ocurra una deflexión. Por otra parte, debido a los nervios de refuerzo el resto de la pared de la botella se puede hacer más delgada, de modo que la botella como un todo pueda tener menos peso y material necesario.
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Claims (1)

  1. imagen1
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PCT/US2009/063536 WO2011056176A1 (en) 2009-11-06 2009-11-06 Preform and container comprising reinforcing elements
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PCT/US2010/055545 WO2011057036A1 (en) 2009-11-06 2010-11-05 Preform and container comprising reinforcing elements

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BR112012010791A2 (pt) 2016-03-29
MX2012004817A (es) 2012-05-29
EP2496391B1 (en) 2013-12-25
ES2453163T3 (es) 2014-04-04
MX2012005045A (es) 2012-05-22
AR078935A1 (es) 2011-12-14
EP2496392A1 (en) 2012-09-12
WO2011057036A1 (en) 2011-05-12
WO2011056176A1 (en) 2011-05-12
US20130004692A1 (en) 2013-01-03
PL2496391T3 (pl) 2014-05-30
CN102686376A (zh) 2012-09-19
JP5740408B2 (ja) 2015-06-24
EP2496391A1 (en) 2012-09-12
US9688425B2 (en) 2017-06-27
JP2013510015A (ja) 2013-03-21
US8728601B2 (en) 2014-05-20
PL2496392T3 (pl) 2015-05-29
US20130134124A1 (en) 2013-05-30
EP2496392B1 (en) 2014-12-17

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