IT202100030200A1 - Flanged cardboard container. - Google Patents
Flanged cardboard container. Download PDFInfo
- Publication number
- IT202100030200A1 IT202100030200A1 IT102021000030200A IT202100030200A IT202100030200A1 IT 202100030200 A1 IT202100030200 A1 IT 202100030200A1 IT 102021000030200 A IT102021000030200 A IT 102021000030200A IT 202100030200 A IT202100030200 A IT 202100030200A IT 202100030200 A1 IT202100030200 A1 IT 202100030200A1
- Authority
- IT
- Italy
- Prior art keywords
- container
- flanged
- blank
- along
- tabs
- Prior art date
Links
- 230000004888 barrier function Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 235000013305 food Nutrition 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims 1
- 239000011265 semifinished product Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001573881 Corolla Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
Classifications
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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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
- B65D5/24—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
- B65D5/244—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the outside of the container body
- B65D5/246—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the outside of the container body the container body comprising a continuous rim or flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/59—Shaping sheet material under pressure
- B31B50/592—Shaping sheet material under pressure using punches or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
- B65D5/2038—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape
- B65D5/2047—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape trapezoidal, e.g. to form a body with diverging side walls
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/44—Integral, inserted or attached portions forming internal or external fittings
- B65D5/441—Reinforcements
- B65D5/445—Reinforcements formed separately from the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
- B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
- B31B2105/0024—Making boxes having all side walls attached to the bottom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2110/00—Shape of rigid or semi-rigid containers
- B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2110/00—Shape of rigid or semi-rigid containers
- B31B2110/20—Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2110/00—Shape of rigid or semi-rigid containers
- B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
- B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
- B31B2120/404—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box using vacuum or pressure means to force the liner against the wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
- B31B2120/406—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box the lining material being a plunger, a web, a sheet or a bag to be forced into the box, e.g. by using heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B50/142—Cutting, e.g. perforating, punching, slitting or trimming using presses or dies
Description
?Contenitore flangiato in cartoncino?. ?Flanged cardboard container?.
DESCRIZIONE DESCRIPTION
Il presente trovato ha per oggetto un contenitore flangiato in cartoncino, particolarmente del tipo rivestito internamente con un film barriera e utilizzabile per contenere prodotti alimentari. The present invention relates to a flanged cardboard container, particularly of the type internally coated with a barrier film and usable for containing food products.
? noto realizzare vassoi in cartoncino, che sono flangiati e rivestiti internamente con film per contenere, ad esempio, prodotti alimentari ed essere successivamente sigillati superiormente con uno strato di copertura fissato sulla flangia. Vassoi di questo tipo, realizzati mediante piegatura e incollaggio di fustellati, sono noti, ad esempio, dalla pubblicazione PCT n. WO 99/67143 A2. ? It is known to make cardboard trays, which are flanged and lined internally with film to contain, for example, food products and are subsequently sealed at the top with a covering layer fixed on the flange. Trays of this type, made by folding and gluing blanks, are known, for example, from PCT publication no. WO 99/67143 A2.
Un inconveniente di questo tipo di soluzioni ? che la flangia del vassoio deve avere una forma poligonale sostanzialmente corrispondente a quella del fondo, in modo che ogni bordo della forma poligonale della flangia sia sostanzialmente parallelo alla linea di piegatura rettilinea della parete laterale che, dal fondo del vassoio, si accoppia a quel bordo della flangia. A drawback of this type of solution? that the tray flange must have a polygonal shape substantially corresponding to that of the bottom, so that each edge of the polygonal shape of the flange is substantially parallel to the straight fold line of the side wall which, from the bottom of the tray, mates to that edge of the flange.
Il compito del presente trovato ? quello di realizzare un contenitore flangiato in cartoncino, preferibilmente del tipo rivestito internamente con un film barriera, che sia in grado di migliorare la tecnica nota in uno o pi? degli aspetti sopra indicati. The task of the present invention? that of creating a flanged cardboard container, preferably of the type internally coated with a barrier film, which is capable of improving the known art in one or more? of the aspects indicated above.
Nell'ambito di tale compito, uno scopo del trovato ? quello di realizzare un contenitore in cartoncino dotato di flangia di forma curvilinea, ad esempio circolare od ovale. Within this task, one purpose of the invention is? that of creating a cardboard container equipped with a curvilinear flange, for example circular or oval.
Un altro scopo del trovato ? quello di consentire al film barriera applicato internamente al contenitore di aderire efficacemente anche lungo gli spigoli definiti tra le pareti laterali contigue. Another purpose of the invention? that of allowing the barrier film applied internally to the container to adhere effectively even along the edges defined between the adjacent side walls.
Un ulteriore scopo ? quello di consentire la realizzazione del contenitore mediante macchine convenzionali dei settori della cartotecnica e degli imballaggi. An additional purpose? that of allowing the creation of the container using conventional machines in the paper and packaging sectors.
Uno scopo del trovato ? anche quello di realizzare un contenitore flangiato in cartoncino di piccole dimensioni, corrispondenti a quelle di vasetti in plastica come quelli per yogurt o per sughi. A purpose of the invention? also that of creating a flanged cardboard container of small dimensions, corresponding to those of plastic jars such as those for yogurt or sauces.
Inoltre, la presente invenzione si prefigge lo scopo di superare gli inconvenienti della tecnica nota in modo alternativo ad eventuali soluzioni esistenti. Furthermore, the present invention aims to overcome the drawbacks of the known art in an alternative way to any existing solutions.
Non ultimo scopo del trovato ? quello di realizzare un contenitore flangiato in cartoncino che sia di elevata affidabilit?, di relativamente facile realizzazione e a costi competitivi. Not the least purpose of the invention? is to create a flanged cardboard container that is highly reliable, relatively easy to make and at competitive costs.
Questo compito, nonch? questi ed altri scopi che meglio appariranno in seguito, sono raggiunti da un contenitore secondo la rivendicazione 1, opzionalmente dotato di una o pi? delle caratteristiche delle rivendicazioni dipendenti. This task, as well as? these and other purposes which will become clearer below are achieved by a container according to claim 1, optionally equipped with one or more of the characteristics of the dependent claims.
Ulteriori caratteristiche e vantaggi del trovato risulteranno maggiormente dalla descrizione di una forma di esecuzione preferita, ma non esclusiva, del contenitore secondo il trovato, illustrato, a titolo indicativo e non limitativo, negli uniti disegni, in cui: Further characteristics and advantages of the invention will emerge more clearly from the description of a preferred, but not exclusive, embodiment of the container according to the invention, illustrated, by way of example and without limitation, in the attached drawings, in which:
- la figura 1 ? un primo fustellato in cartoncino per realizzare un contenitore secondo il trovato; - figure 1? a first cardboard blank to make a container according to the invention;
- la figura 2 ? un secondo fustellato in cartoncino da accoppiare al primo fustellato dopo almeno un'operazione di piegatura; - figure 2? a second cardboard blank to be coupled to the first blank after at least one folding operation;
- la figura 3 mostra uno stampo femmina per realizzare un contenitore secondo il trovato a partire dai fustellati delle figure precedenti; - figure 3 shows a female mold for making a container according to the invention starting from the blanks of the previous figures;
- la figura 4 mostra una fase di piegatura del primo fustellato entro lo stampo femmina; - figure 4 shows a folding phase of the first blank inside the female mould;
- la figura 5 mostra la vaschetta ottenuta con la piegatura del primo fustellato; - figure 5 shows the tray obtained by folding the first blank;
- la figura 6 mostra l'applicazione del secondo fustellato sulla vaschetta della figura precedente; - figure 6 shows the application of the second blank on the tray of the previous figure;
- la figura 7 mostra una fase di piegatura del secondo fustellato sulle pareti laterali della vaschetta; - figure 7 shows a folding phase of the second blank on the side walls of the tray;
- la figura 8 mostra una fase di applicazione del film barriera sul semilavorato della figura precedente; - figure 8 shows an application phase of the barrier film on the semi-finished product of the previous figure;
- la figura 9 mostra il contenitore in cartoncino rivestito internamente e sulla flangia con il film barriera della figura precedente. - figure 9 shows the cardboard container covered internally and on the flange with the barrier film of the previous figure.
Con riferimento alle figure citate, un contenitore flangiato secondo il trovato, indicato globalmente con il numero di riferimento 1, comprende una vaschetta in cartoncino formata da un primo fustellato in cartoncino 10 piegato e accoppiata a un secondo fustellato in cartoncino 20. With reference to the cited figures, a flanged container according to the invention, indicated globally with the reference number 1, includes a cardboard tray formed by a first cardboard blank 10 folded and coupled to a second cardboard blank 20.
La grammatura del cartoncino ? preferibilmente inferiore a 400 g/m<2>. The weight of the cardboard? preferably less than 400 g/m<2>.
Il primo fustellato 10 ? dotato di un fondo poligonale 11 che costituisce la base del vaschetta e, conseguentemente, del contenitore 1. The first blank 10? equipped with a polygonal bottom 11 which constitutes the base of the tray and, consequently, of the container 1.
Il primo fustellato 10 comprende, inoltre, falde 12a, 12b, 12c, 12d attorno al fondo poligonale 11 le quali, piegate lungo i lati 3 di tale fondo 11, corrispondono a rispettive pareti laterali della vaschetta e, conseguentemente, del contenitore 1 finale. The first blank 10 also includes flaps 12a, 12b, 12c, 12d around the polygonal bottom 11 which, folded along the sides 3 of this bottom 11, correspond to respective side walls of the tray and, consequently, of the final container 1.
Il fondo poligonale 11 della vaschetta definisce spigoli di fondo del contenitore 1 in corrispondenza della linea di piegatura 3 delle falde 12a, 12b, 12c, 12d e che sono rettilinei. The polygonal bottom 11 of the tray defines bottom edges of the container 1 in correspondence with the fold line 3 of the flaps 12a, 12b, 12c, 12d and which are straight.
Il fondo poligonale 11 ? preferibilmente di forma quadrata, ma in altre forme di realizzazione preferite (non illustrate) pu? essere di forma rettangolare, romboidale o triangolare, oppure pu? presentare un numero di lati o spigoli superiore. The polygonal background 11? preferably square in shape, but in other preferred embodiments (not illustrated) it can? be rectangular, rhomboidal or triangular in shape, or it can? present a higher number of sides or edges.
Il fondo poligonale 11 ? definito sul primo fustellato 10 da linee di piegatura 3 rettilinee che lo circondano. Da ciascuna linee di piegatura 3 diparte una rispettiva falda 12a-12d. The polygonal background 11? defined on the first blank 10 by 3 straight folding lines that surround it. A respective flap 12a-12d departs from each fold line 3.
Eventualmente ciascuna linea di piegatura 3 delle falde 12a-12d rispetto al fondo 11 pu? comprendere uno o pi? intagli 18, per agevolare l'operazione di piegatura delle falde 12a-12d a formare la vaschetta. Possibly each fold line 3 of the flaps 12a-12d with respect to the bottom 11 can? understand one or more? notches 18, to facilitate the folding operation of the flaps 12a-12d to form the tray.
Le falde 12a-12d possono essere disposte su lati del fondo poligonale 11 a due a due contrapposti, oppure sui lati, o coppie di lati, maggiori del fondo poligonale 11, o su tutti i lati del fondo poligonale 11. Inoltre le falde 12a-12d presentano un rispettivo bordo superiore libero 16, che dista dalla linea di piegatura rettilinea 3 di una stessa quantit? per tutte le falde 12a-12d. The flaps 12a-12d can be arranged on the sides of the polygonal bottom 11 in pairs, or on the sides, or pairs of sides, larger than the polygonal bottom 11, or on all sides of the polygonal bottom 11. Furthermore, the flaps 12a-12d 12d have a respective free upper edge 16, which is distant from the straight fold line 3 by the same amount. for all pitches 12a-12d.
Ciascuna falda 12a-12d ha preferibilmente un profilo svasato, con i bordi laterali 17 rettilinei che divergono in allontanamento dal fondo poligonale 11 e verso il bordo superiore 16 che li collega. Each flap 12a-12d preferably has a flared profile, with the straight lateral edges 17 which diverge away from the polygonal bottom 11 and towards the upper edge 16 which connects them.
Il primo fustellato 10 ? ottenuto a partire da un foglio di cartoncino tranciando, mediante una fustellatrice, porzioni del foglio in modo da lasciare una forma sostanzialmente a corolla con il fondo poligonale 11 posto al centro e circondato dalle falde 12a-12d. The first blank 10? obtained starting from a sheet of cardboard by cutting, using a die-cutting machine, portions of the sheet so as to leave a substantially corolla shape with the polygonal bottom 11 placed in the center and surrounded by the flaps 12a-12d.
Nella forma di realizzazione preferita illustrata, il primo fustellato 10 ha essenzialmente una forma a croce greca o croce patente. In the preferred embodiment illustrated, the first blank 10 essentially has a Greek cross or patent cross shape.
Il secondo fustellato 20 consiste essenzialmente in un collare 21 dotato di una pluralit? di linguette 22 sporgenti verso l'interno a partire da rispettivi segmenti di piegatura sufficientemente corti da formare, complessivamente, una linea spezzata chiusa 23 che risulta sostanzialmente in una linea curva chiusa, pi? precisamente sostanzialmente circolare, come nel caso illustrato il cui il collare 21 ? sostanzialmente una corona circolare. Le linguette 22, quando sono accoppiate alle falde 12a-12d piegate del primo fustellato 10 per formare il contenitore 1 secondo il trovato, risultano quindi piegate lungo una linea 23 sostanzialmente circolare. The second blank 20 essentially consists of a collar 21 equipped with a plurality of of tabs 22 protruding inwards starting from respective folding segments short enough to form, overall, a closed broken line 23 which substantially results in a closed curved line, more precisely substantially circular, as in the illustrated case where the collar 21 is basically a circular crown. The tabs 22, when coupled to the folded flaps 12a-12d of the first blank 10 to form the container 1 according to the invention, are therefore folded along a substantially circular line 23.
Gruppi di linguette pieghevoli 22 sono accoppiati a ciascuna delle falde 12a-12d piegate del primo fustellato 10 per definire, mediante il collare 21, una flangia continua sopra le pareti laterali del contenitore 1, come mostrato in figura 9. Vantaggiosamente, il secondo fustellato 20 pu? essere orientato rispetto alla vaschetta ottenuta dal primo fustellato 10 in modo che, per ogni coppia di falde adiacenti 12a-12d piegate che formano una coppia di pareti laterali contigue della vaschetta, una delle linguette 22 sia accoppiata a ponte alle due pareti laterali contigue, in corrispondenza dello spigolo formato tra esse. Groups of folding tabs 22 are coupled to each of the folded flaps 12a-12d of the first blank 10 to define, by means of the collar 21, a continuous flange over the side walls of the container 1, as shown in figure 9. Advantageously, the second blank 20 can? be oriented with respect to the tray obtained from the first blank 10 so that, for each pair of adjacent folded flaps 12a-12d which form a pair of contiguous side walls of the tray, one of the tabs 22 is coupled like a bridge to the two contiguous side walls, in correspondence of the edge formed between them.
L'accoppiamento tra linguette 22 e falde 12a-12d potrebbe essere realizzato mediante interposizione di uno strato di colla, ma secondo un aspetto vantaggioso del trovato l'applicazione di colla pu? essere evitata del tutto, rivestendo con un film barriera l'interno del semilavorato formato dalla vaschetta e dal collare 21 posto sull'orlo superiore della stessa. In questo caso ? infatti il film barriera che svolge la funzione di ancoraggio tra le falde 12a-12d e le linguette 22 attestate su di esse, lungo le facce interne delle pareti laterali del contenitore 1. The coupling between tabs 22 and flaps 12a-12d could be achieved by interposing a layer of glue, but according to an advantageous aspect of the invention the application of glue can be avoided entirely by covering the inside of the semi-finished product formed by the tray and the collar 21 placed on the upper edge of the same with a barrier film. In this case ? in fact the barrier film which performs the anchoring function between the flaps 12a-12d and the tabs 22 abutting on them, along the internal faces of the side walls of the container 1.
Secondo un aspetto del trovato, ciascuna delle falde 12a-12d comprende almeno una cordonatura di scarico 13 e/o 14, disposta tra il lato rettilineo 3 del fondo poligonale 11 e il bordo superiore 16 della falda 12a-12d lungo il quale si accoppia una pluralit? di linguette 22. According to one aspect of the invention, each of the flaps 12a-12d includes at least one discharge crease 13 and/or 14, arranged between the straight side 3 of the polygonal bottom 11 and the upper edge 16 of the flap 12a-12d along which a plurality? of tabs 22.
Le cordonature di scarico 13 e/o 14 sono atte ad agevolare la deformazione superficiale che subisce la rispettiva falda, che si mantiene sostanzialmente piana nella zona adiacente alla linea rettilinea 3 e viene invece curvata verso il bordo superiore 16 a causa dell'accoppiamento con il rispettivo gruppo di linguette 22 del collare 21. The discharge creases 13 and/or 14 are designed to facilitate the surface deformation that the respective layer undergoes, which remains substantially flat in the area adjacent to the straight line 3 and is instead curved towards the upper edge 16 due to the coupling with the respective group of tabs 22 of the collar 21.
Grazie alle cordonature di scarico 13 e/o 14 si attenua l'effetto memoria della falda 12a-12d che le contiene, la quale tende quindi a mantenere pi? agevolmente la forma concava verso il collare 21 imposta dall'accoppiamento con le linguette 22 nonostante la falda 12a-12d sia stata ottenuta a partire da un fustellato 10 piano e sia collegata a uno spigolo rettilineo 3 alla base del contenitore 1. Thanks to the discharge creases 13 and/or 14, the memory effect of the layer 12a-12d which contains them is attenuated, which therefore tends to maintain more the concave shape towards the collar 21 easily imposed by the coupling with the tabs 22 despite the fact that the flap 12a-12d was obtained starting from a flat blank 10 and is connected to a straight edge 3 at the base of the container 1.
Una prima cordonatura di scarico ? preferibilmente realizzata con una linea di cordonatura 13 sostanzialmente a forma di U, con le due gambe della "U" che arrivano fino al bordo superiore 16 e divergono fin quasi ai bordi laterali 17 della falda 12a-12d, mantenendosi sostanzialmente parallele a tali bordi laterali 17. La base curva della "U" ?, invece, rivolta verso il lato rettilineo 3 del fondo 11 e distanziata da tale lato 3, preferibilmente in modo che l'area delimitata dalla prima cordonatura 13 e il bordo 16 costituisca la maggior parte dell'area complessiva della rispettiva falda 12a, 12b, 12c o 12d che contiene la prima cordonatura 13. A first discharge creasing? preferably made with a substantially U-shaped creasing line 13, with the two legs of the "U" reaching up to the upper edge 16 and diverging almost to the lateral edges 17 of the flap 12a-12d, remaining substantially parallel to these lateral edges 17. The curved base of the "U" is, however, facing the straight side 3 of the bottom 11 and spaced from this side 3, preferably so that the area delimited by the first crease 13 and the edge 16 constitutes the majority of the the overall area of the respective layer 12a, 12b, 12c or 12d which contains the first crease 13.
In questo modo, la superficie della parete laterale del contenitore 1 tra la base curva della prima cordonatura 13 e lo spigolo di base 3 si mantiene sostanzialmente piana, mentre la superficie racchiusa dalla prima cordonatura 13 ? sostanzialmente concava, con la concavit? rivolta verso l'interno del contenitore 1. In this way, the surface of the side wall of the container 1 between the curved base of the first crease 13 and the base edge 3 remains substantially flat, while the surface enclosed by the first crease 13? substantially concave, with the concavit? facing the inside of the container 1.
Le gambe della prima cordonatura 13 adiacenti ai bordi laterali 17 della rispettiva falda 12a12d possono vantaggiosamente presentare almeno un intaglio di scarico 15 sovrapposto lungo linea di cordonatura 13, per agevolare la piegatura della falda lungo la rispettiva gamba della U e migliorare ulteriormente il mantenimento nella configurazione curva della zona superiore della corrispondente parete laterale del contenitore 1, in particolare vicino allo spigolo che verrebbe formato con la parete laterale contigua. Nella forma di realizzazione illustrata, sono previsti due intagli 15 lungo ciascuna gamba della linea a U che definisce la prima cordonatura 13. The legs of the first crease 13 adjacent to the lateral edges 17 of the respective flap 12a12d can advantageously present at least one relief notch 15 superimposed along the crease line 13, to facilitate folding of the flap along the respective leg of the U and further improve maintenance in the configuration curve of the upper area of the corresponding side wall of the container 1, in particular near the corner that would be formed with the contiguous side wall. In the illustrated embodiment, two notches 15 are provided along each leg of the U-shaped line that defines the first crease 13.
In aggiunta o in alternativa alla prima cordonatura 13, almeno una delle falde 12a-12d comprende una pluralit? di segmenti di cordonatura 14 lungo il bordo superiore 16, i quali intercettano trasversalmente o perpendicolarmente il bordo superiore 16. I segmenti di cordonatura 14 sono distanziati dal lato rettilineo 3 del fondo poligonale 11 in modo da definire una superficie sostanzialmente prismatica su una fascia superiore della parete laterale del contenitore 1, cio? lungo il bordo superiore 16 della falda 12a-12d. In addition or as an alternative to the first creasing 13, at least one of the layers 12a-12d comprises a plurality of creases. of creasing segments 14 along the upper edge 16, which intercept transversely or perpendicularly the upper edge 16. The creasing segments 14 are spaced from the straight side 3 of the polygonal bottom 11 so as to define a substantially prismatic surface on an upper band of the side wall of container 1, that is? along the upper edge 16 of the flap 12a-12d.
Per fabbricare il contenitore 1 secondo il trovato si pu? ricorrere a soluzioni di per s? note, che utilizzano uno stampo 30 dotato di uno stampo femmina 31 contenente una sede interna 32 che ha forma e altezza sostanzialmente corrispondenti a quelle della vaschetta da erigere. Sopra la sede 32 pu? essere steso il primo fustellato 10, posizionando il fondo poligonale 11 coassialmente alla stessa. Un punzone 33 spinge il fondo 11 del fustellato dentro la sede 32, provocando la piegatura delle falde 12a-12d verso il punzone 33 lungo i lati rettilinei 3 e conformando cos? il primo fustellato 10 come una vaschetta, visibile in figura 5. To manufacture the container 1 according to the invention is it possible? resort to solutions per se? known, which use a mold 30 equipped with a female mold 31 containing an internal seat 32 which has a shape and height substantially corresponding to those of the tray to be erected. Above seat 32 can? the first blank 10 must be laid out, positioning the polygonal bottom 11 coaxially with it. A punch 33 pushes the bottom 11 of the blank into the seat 32, causing the folds 12a-12d towards the punch 33 along the straight sides 3 and thus forming the the first blank 10 as a tray, visible in figure 5.
Pu? essere poi posizionato il secondo fustellato 20 sopra e coassialmente alla sede 32 ovvero alla vaschetta cos? generata. Un secondo punzone 34 oppure lo stesso punzone 33 della fase precedente viene nuovamente inserito nella sede 32 dello stampo femmina 31 per deformare le linguette 22 contro le facce interne delle pareti laterali della vaschetta, che sono definite dalle falde 12a-12d piegate. Can you? then the second blank 20 be positioned above and coaxially to the seat 32 or to the tray so? generated. A second punch 34 or the same punch 33 from the previous phase is inserted again into the seat 32 of the female mold 31 to deform the tabs 22 against the internal faces of the side walls of the tray, which are defined by the folded flaps 12a-12d.
Successivamente, un film barriera 4, particolarmente un film in materiale termoplastico, viene steso sopra la sede 32 dello stampo femmina 31, ricoprendo l'intera flangia 21 del semilavorato temporaneamente presente nello stampo femmina 31. Subsequently, a barrier film 4, particularly a film of thermoplastic material, is spread over the seat 32 of the female mold 31, covering the entire flange 21 of the semi-finished product temporarily present in the female mold 31.
Un contro-stampo 35 dotato di mezzi di applicazione di calore viene allora avvicinato allo stampo femmina 31 chiudendo da sopra la sede 32 e generando una quantit? di calore adatta alla termoformatura del film 4. Contemporaneamente viene creata una depressione nella sede 32 oppure una sovrappressione tra il film 4 e il controstampo 35, in un modo di per s? noto. Il film 4 viene cos? deformato e aderito sopra tutte le superfici interne del semilavorato formato dalla vaschetta e dal collare 21, fissando di conseguenza le linguette 22 alle pareti laterali del contenitore 1 cos? ottenuto. A counter-mold 35 equipped with heat application means is then brought closer to the female mold 31, closing the seat 32 from above and generating a quantity of heat suitable for the thermoforming of the film 4. At the same time, a depression is created in the seat 32 or an overpressure between the film 4 and the countermold 35, in a way that is inherently known. Is film 4 coming like this? deformed and adhered to all the internal surfaces of the semi-finished product formed by the tray and the collar 21, consequently fixing the tabs 22 to the side walls of the container 1 thus? obtained.
Il contenitore 1 potr? quindi essere successivamente stoccato oppure riempito (ad esempio, con un prodotto alimentare) e sigillato a tenuta con un foglio di copertura fissato lungo la flangia 21, con tecniche di per s? note. Can container 1? then be subsequently stored or filled (for example, with a food product) and sealed with a covering sheet fixed along the flange 21, with techniques per se? Note.
Si ? in pratica constatato come il trovato raggiunga il compito e gli scopi preposti. Yes ? in practice it has been observed how the invention achieves the intended task and objectives.
Il trovato, cos? concepito, ? suscettibile di numerose modifiche e varianti, tutte rientranti nell'ambito del concetto inventivo; inoltre, tutti i dettagli potranno essere sostituiti da altri elementi tecnicamente equivalenti. The found, what? conceived, ? susceptible to numerous modifications and variations, all falling within the scope of the inventive concept; furthermore, all details may be replaced by other technically equivalent elements.
Ove le caratteristiche e le tecniche menzionate in qualsiasi rivendicazione siano seguite da segni di riferimento, tali segni sono stati apposti al solo scopo di aumentare l'intelligibilit? delle rivendicazioni e di conseguenza tali segni di riferimento non hanno alcun effetto limitante sull'interpretazione di ciascun elemento identificato a titolo di esempio da tali segni di riferimento. Where the features and techniques mentioned in any claim are followed by reference marks, have such marks been affixed for the sole purpose of increasing intelligibility? of the claims and consequently such reference marks have no limiting effect on the interpretation of each element identified by way of example by such reference marks.
Claims (9)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102021000030200A IT202100030200A1 (en) | 2021-11-30 | 2021-11-30 | Flanged cardboard container. |
| PCT/IB2022/061565 WO2023100083A1 (en) | 2021-11-30 | 2022-11-30 | Flanged cardboard container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102021000030200A IT202100030200A1 (en) | 2021-11-30 | 2021-11-30 | Flanged cardboard container. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT202100030200A1 true IT202100030200A1 (en) | 2023-05-30 |
Family
ID=80225333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT102021000030200A IT202100030200A1 (en) | 2021-11-30 | 2021-11-30 | Flanged cardboard container. |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | IT202100030200A1 (en) |
| WO (1) | WO2023100083A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471901A (en) * | 1981-07-17 | 1984-09-18 | Michael Horauf Maschinenfabrik | Container cut from a single piece of material |
| EP0224908A2 (en) * | 1985-12-02 | 1987-06-10 | KRAFT GENERAL FOODS R & D INC. | Packaging unit |
| WO1999067143A2 (en) | 1998-06-25 | 1999-12-29 | Fcp Europa Carton Faltschachtel Gmbh | Airtight food packaging and a method, device and tray for the production thereof |
| ITTO20090864A1 (en) * | 2009-11-11 | 2011-05-12 | Ecopack S P A | CONTAINER FOR OVEN PRODUCT AND ITS PRODUCTION PROCEDURE. |
| US20120118880A1 (en) * | 2010-11-12 | 2012-05-17 | Wnek Patrick H | Container, forming tool, and method for forming a container |
-
2021
- 2021-11-30 IT IT102021000030200A patent/IT202100030200A1/en unknown
-
2022
- 2022-11-30 WO PCT/IB2022/061565 patent/WO2023100083A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471901A (en) * | 1981-07-17 | 1984-09-18 | Michael Horauf Maschinenfabrik | Container cut from a single piece of material |
| EP0224908A2 (en) * | 1985-12-02 | 1987-06-10 | KRAFT GENERAL FOODS R & D INC. | Packaging unit |
| WO1999067143A2 (en) | 1998-06-25 | 1999-12-29 | Fcp Europa Carton Faltschachtel Gmbh | Airtight food packaging and a method, device and tray for the production thereof |
| EP1089912A2 (en) * | 1998-06-25 | 2001-04-11 | A&R Carton GmbH | Airtight food packaging and a method, device and tray for the production thereof |
| ITTO20090864A1 (en) * | 2009-11-11 | 2011-05-12 | Ecopack S P A | CONTAINER FOR OVEN PRODUCT AND ITS PRODUCTION PROCEDURE. |
| US20120118880A1 (en) * | 2010-11-12 | 2012-05-17 | Wnek Patrick H | Container, forming tool, and method for forming a container |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023100083A1 (en) | 2023-06-08 |
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