PT85283B - Tabuleiro-expositor que forma embalagem e processo de preparacao de material composito para o seu fabrico - Google Patents

Tabuleiro-expositor que forma embalagem e processo de preparacao de material composito para o seu fabrico Download PDF

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Publication number
PT85283B
PT85283B PT85283A PT8528387A PT85283B PT 85283 B PT85283 B PT 85283B PT 85283 A PT85283 A PT 85283A PT 8528387 A PT8528387 A PT 8528387A PT 85283 B PT85283 B PT 85283B
Authority
PT
Portugal
Prior art keywords
lid
tray
display
rigid
peelable
Prior art date
Application number
PT85283A
Other languages
English (en)
Other versions
PT85283A (pt
Inventor
Arthur Louis Chanel
Original Assignee
Bressor
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 Bressor filed Critical Bressor
Publication of PT85283A publication Critical patent/PT85283A/pt
Publication of PT85283B publication Critical patent/PT85283B/pt

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Classifications

    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76—Making non-permanent or releasable joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72343—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for liquids
    • 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
    • B65D1/34—Trays or like shallow containers
    • B65D1/36—Trays or like shallow containers with moulded compartments or partitions
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases
    • B29L2031/7168—Egg-cartons
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/0012—Shape of the outer periphery having straight sides, e.g. with curved corners
    • B65D2543/00175—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
    • B65D2543/00194—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00351—Dome-like
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00425—Lids or covers welded or adhered to the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527—NO contact
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546—NO contact
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar
    • B65D2543/00842—Integral tabs, tongues, handles or similar outside of the lid
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packaging For Recording Disks (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Cartons (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Basic Packing Technique (AREA)
  • Wrappers (AREA)
  • Table Devices Or Equipment (AREA)

Description

MEMÕRIA DESCRITIVA
São já conhecidas muitas embalagens de matéria plástica que compreendem um receptáculo rígido que tem ou não alvéolos onde se colocam o produto ou produtos e é fechado com uma folha pelável, quer dizer que pode ser descolada a pouco e pouco por meio de um esforço de tracção exercido sobre uma parte da sua periferia.
Nas embalagens deste tipo, o receptáculo é de cloreto de polivinilo (PVC) e a folha que o fecha é de polietileno, cuja soldadura sobre o PVC permite o arrancamento mas que é maleável.
Como esta matéria não tem rigidez, estas embalagens protegem mal os produtos que contêm, e até agora não era possível realizar uma embalagem que tivesse o fundo e a tampa rígidos de PVC, que protegesse assim de maneira eficaz os produtos ou artigos embalados contra os contactos, choques ou pressões e cuja tampa pudesse ser separada do fundo por descolagem progressiva, isto é, uma tampa pelável, devido ao facto de as soldaduras de PVC sobre PVC não serem separáveis.
objecto da invenção é remediar esta carência, realizando essa embalagem completamente rígida que tem também uma tampa rígida pelável.
Para este fim, a invenção tem como objecto uma embaiag^m do tipo que compreende um fundo rígido de PVC, fechado na sua parte superior por uma parede pelável, caractetizada pelo facto de a tampa ser geralmente de cloreto de polivinilo rígido, tendo pelo menos ura, o fundo ou a tampa, na face no interior da embalagem uma camada delgada de polietileno de qualidade pelável, sendo a rigidez do fundo maior que a da tampa, estando esta fixada no fundo por meio de faixa de soldadura periférica que tem pelo menos uma zona de enfranquecimento.
Preferivelmente, o fundo e a tampa são formados por una folha de PVC revestida, depois de ter sido formada, com uma camada de polietileno sobre a qual se aplica uma película de polietileno de qualidade pelável.
66.412
GB/1960
3A invenção tem também como objecto ura tabuleiro-expositor que constitui uma embalagem rígida, caracterizado por compreender ura fundo e uma tampa rígidos de PVC, um dos quais, pelo menos, tem na face interior uma camada delgada de polietileno de qualidade pelável, tendo o fundo alvéolos e uraa rigidez maior que a da tampa, estando esta fixada no fundo por meio de uma faixa de soldadura periférica que tem pelo menos, uma zona de enfraquecimento.
Embora o tabuleiro-expositor de acordo com a invenção possa ser utilizado para todas as espécies de produtos manufacturados, vai ser descrito adiante, como exemplo, na sua aplicação a produtos alimentares e mais particularmente para queijinhos.
De acordo com outra caracteristica da invenção, o fundo e a tampa compreendem ambos um rebordo periférico exterior plano que tem duas orelhas opostas salientes para o exterior e com forma e dimensões iguais, estando os referidos rebordos, sobrepostos, soldados um ao outro por meio de uma linha de soldadura periférica na qual os referidos pontos de enfraquecimento são estreitamente contíguos à base das referidas orelhas.
A descrição que se segue, feita com referência aos desenhos anexos como exemplo não limitativo, permitirá compreender bem a maneira como a invenção pode ser aplicada.
A figura 1 é uma vista em alçado lateral esquemático em corte longitudinal de um tabuleiro-expositor, de acordo com a invenção.
A figura 2 é uma vista de cima em planta.
A figura 3 é uraa vista esquemática parcial em corte pela linha III-III da figura 2.
A figura 4 é uraa vista esquemática parcial era corte pela linha IV-IV da figura 2.
A figura 5 é uma vista parcial em escala muito ampliada que mostra a sobreposição das diversas camadas de matérias do fundo e/ou da tampa.
Com referência ao desenho, o tabuleiro-expositor de acordo com a invenção compreende um fundo 1 e uraa tampa 2 que têm am66.412
GB/19Ó0
-4bos um rebordo periférico plano 3, 3' que se prolonga para o ex terior num plano paralelo ao plano longitudinal mediano X-X do conjunto.
Segundo a forma de realização representada, o fundo 1 é de material compósito que compreende uma folha 10 de cloreto de polivinilo (PVC) de qualidade alimentar, opaca, colorida ou não, formada a quente por um processo conhecido de maneira a ter alvéolos 4 destinados a conter por exemplo queijinhos (bocados), e revestida a seguir com uma camada mais delgada 11 de polietileno de qualidade alimentar sobre a qual se aplica finalmente, por laminagem sob pressão, uma película delgada 12 de polietileno de qualidade pelável.
fundo tem convenientemente um canal periférico 5» com secção em U ou análoga, convenientemente formado pelo mesmo processo que os alvéolos 4 e ao mesmo tempo que estes.
Conforme está representado no desenho, o canal 5 θ imediatamente contíguo ao rebordo periférico 3' do fundo, para o interior era relação do referido rebordo.
Λ tampa 2 é oca e forma uma campânula, que é feita também do mesmo material compósito que o fundo 1, mas transparente: a sua abertura é delimitada pelo rebordo 3, cuja forma e dimensões são iguais às do rebordo 3' do fundo 1.
Os rebordos 3 θ 3’ têm ambos duas orelhas 6, 6' opostas que se prolongam para o exterior no plano dos rebordos 3? 3' respectivamente.
Segundo o exemplo representado, as orelhas 6, 6' tem forma arredondada, mas a sua forma pode ser alongada, rectangular ou outra.
Analogamente, no que diz respeito aos alvéolos 4, compreende-se que a sua forma e número podem ser diferentes do exemplo representado.
Os rebordos 35 3' são colados ou soldados, preferivelmente por alta frequência ou outro processo apropriado não térmico, ao longo de uma faixa contínua 7 sobre os rebordos, com largura constante em toda a periferia da embalagem excepto ao nível das orelhas 6, 6' onde esta soldadura das películas de polietileno εε 412
C-P/196C
ζ peláveis urra com a outra tãm uma parte enfraquecida constituída por uma porção 9 com largura bastante menor, deixando subsistir uma porção notável das orelhas 6, 6' não soldadas conjuntamente z z e que permite afasta-las e pegar-lhes, conforme esta representado na figura 3, a fim de exercer nelas um esforço de tracção em sentido inverso ao nível da zona enfraquecida 9 da soldadura 7. Desta maneira, é possível abrir facilmente o tabuleiro-expositor por descolagem progressiva da tampa.
A
De maneira vantajosa, a tampa 2 tem pelo menos uma saliência voltada para o interior, como representado em 9, com a forma de pirâmide ou cone, para juntar uma possível condensação na face interior da tampa.
A tampa, como não tem meios análogos ao canal 5 do fundo, * f e menos rigioa que este, o que facilita a descolagem quando se procede a abertura do tabuleiro-apresentador. Alem disso, a sua espessura e menor que a do tabuleiro, sendo a proporção das espessuras tampa/tabule iro convenientemente de aproximadamente 7:1C, por exemplo 7 para a tampa e õCO ^um para o fundo.
A rigidez do tabuleiro-expositor de acordo com a invenção permite a embalagem de produtos frágeis, por exemple cueijos, e a sua sobreposição sem perigo de deterioração.
tabuleiro-expositor realizado desta maneira é rígido e impermeável. Por este facto, é preferivelmente cheio com um gas inerte no momento da soldadura, o que proporciona uma ampliação da duração de conservação dos produtos que contém.
Compreende-se, obviam.ente, que a invenção não está limita da a forma representada em planta como exemplo na figura 2, po dendo esta forma ser circular, oval ou outra. Além disso, podem acrescentar-se no tabuleiro motivos decorativos ou publici tários.

Claims (7)

  1. -REIVINDICAÇÕES1-. - Embalagem do chado na parte superior tipo que compreende um fundo rígido fepor uma parede pelável, caracterizada pelo facto da tampa (2) ser também feita do mesmo material do fundo rígido, tendo pelo menos, ou o fundo (1) ou a tampa (2), na face no interior da embalagem, uma camada delgada (12) de material pelável, sendo a rigidez do fundo (1) maior cue a da tampa (2), estando esta fixada no fundo por meio de uma faixa (7) de soldadura periférica que tem, pelo menos, uma zona de enfraquecimento (S).
  2. 2^. - Tabuleiro-expositor rígido, caracterizado pelo facto de compreender um fundo (1) e uma tampa (2) rígidos, um dos quais, pelo menos, tem na face interior uma camada delgada (12) de material pelavel, tendo o fundo (1) alvéolos (4) e apresen tando uma rigidez maior que a da tampa (2), estando esta fixada no fundo (1) por uma faixa (7) de soldadura periférica que tem, pelo menos, uma zona de enfraquecimento (8).
  3. 3-, - Tabuleiro-expositor que forma embalagem de acordo com a reivindicação 1 ou 2, caracterizado pelo facto do fundo (1) e a tampa (2) serem constituídos por uma folha (1C) revestida, depois de ter sido formada, com uma camada (11) na qual se aplica uma película (12) de material pelável''.
  4. 4Λ . - Tabuleiro-expositor de acorde com. a reivindicação
    3, caracterizado pelo facto do fundo (1) e a tampa (2) terem ambos um rebordo periférico exterior plano (3, 3'), cada um dos quais tem orelhas opostas (6, 6’) salientes e com formas e dimensões iguais, tendo o fundo também um canal (b) em U ou análoga contíguo ao referido rebordo (3') com secção e para o interior em relação a este.
    . - Tabuleiro-expositor de acordo com a reivindicação
    4, caracterizado pelo facto do referido rebordo periférico (3’) do fundo se prolongar num plano paralelo ao do referido tabuleiro.
    60 412 c-B/iseo
    -76&. - Tabuleiro-expositor de acordo com a reivindicação 3, caracterizado pelo facto da referida zona de enfraquecimen to da faixa (7) de soldadura ser constituída por urra porção en colhida (3) da referida faixa.
  5. 7^ . - Tabuleiro-expositor de acordo corr qualquer das reivindicações 1 a 6, caracterizado pelo facto do fundo (1) ser opaco, colorido ou não, e pelo facto da tampa (2) ser oca, de material transparente, e ter um.a saliência interior (9), pele menos, com forma piramidal ou cónica.
    í /'
  6. 8&. - Tabuleiro-expositor de acordo com. qualquer das reivindicações 1 a 7, caracterizado pelo facto de ser cheio com. um gas inerte.
  7. 9^. - Processo de preparação de material composito para o fabrico de um tabuleiro-expositor ou embalagem conforme definido em qualquer das reivindicações 1 a 8, caracterizado pelo facto de compreender uma folha (10) de PVC rígido na qual se aplica uma camada (11) de polietileno sobre a qual se aplica por laminagem sob pressão um.a película (12) de polietileno de qualidade pelável.
PT85283A 1986-07-09 1987-07-08 Tabuleiro-expositor que forma embalagem e processo de preparacao de material composito para o seu fabrico PT85283B (pt)

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FR8610026A FR2601333B1 (fr) 1986-07-09 1986-07-09 Plateau-presentoir perfectionne formant emballage

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FR2601333B1 (fr) 1989-06-16
DK346087D0 (da) 1987-07-06
CA1312022C (fr) 1992-12-29
AU7501087A (en) 1988-02-04
AU588117B2 (en) 1989-09-07
ATE54897T1 (de) 1990-08-15
DK346087A (da) 1988-01-10
FR2601333A1 (fr) 1988-01-15
EP0252791B1 (fr) 1990-07-25
PT85283A (pt) 1988-07-29
US4765463A (en) 1988-08-23
DK166958B1 (da) 1993-08-09
ES2016980B3 (es) 1990-12-16
DE3763922D1 (de) 1990-08-30
JPS6322367A (ja) 1988-01-29
EP0252791A1 (fr) 1988-01-13

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