WO2010130858A1 - Container with straw and method for producing same - Google Patents

Container with straw and method for producing same Download PDF

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Publication number
WO2010130858A1
WO2010130858A1 PCT/ES2010/070307 ES2010070307W WO2010130858A1 WO 2010130858 A1 WO2010130858 A1 WO 2010130858A1 ES 2010070307 W ES2010070307 W ES 2010070307W WO 2010130858 A1 WO2010130858 A1 WO 2010130858A1
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WO
WIPO (PCT)
Prior art keywords
straw
container
walls
mouth
welded
Prior art date
Application number
PCT/ES2010/070307
Other languages
Spanish (es)
French (fr)
Inventor
Ramon Figols Gamiz
Original Assignee
Volpak, S.A.U.
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 Volpak, S.A.U. filed Critical Volpak, S.A.U.
Publication of WO2010130858A1 publication Critical patent/WO2010130858A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/24—Inserts or accessories added or incorporated during filling of containers
    • B65D77/28—Cards, coupons, or drinking straws
    • B65D77/283—Cards, coupons, or drinking straws located initially inside the container, whereby the straw is revealed only upon opening the container, e.g. pop-up straws
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags

Definitions

  • the invention relates to a container for containing beverages which in its mouthpiece comprises a heat-sealed portion that hermetically closes the container and that holds a straw whose bottom end is submerged in the bosom of the beverage.
  • beverage containers that incorporate a straw, the lower end of which is submerged in said beverage, are known today to sip the drinks contained in the package.
  • the upper mouth of the straw is wrapped or protected from the outside by auxiliary elements, or by a part or components of the package itself, so that the package must be manipulated to uncover or access the mouth of the straw.
  • the containers are constituted of a flexible plastic material, during the manipulation of the container it can be crushed and the beverage can be poured through its upper mouth.
  • the container according to the invention is of the type that in its mouth comprises a heat-sealed portion that tightly closes the container and that holds a straw whose lower end is submerged in the bosom of the beverage.
  • the package is characterized in that the walls of the mouth of the upper end of the straw are hermetically crushed and welded with a reversible weld, so that the mouth of the straw can be easily opened by simple digital pressure.
  • the walls of the mouth of the upper end of the straw are welded by fusion of the material of which the straw is constituted, and the welding is extended by a strip transverse to the straw, its width being between 0.5 and 3 mm, and more preferably between 1 and 2 mm.
  • the weld is constituted by a series of intersecting lines, which determine between them small portions of the wall without welding.
  • welding is used to define that the two walls of the mouth of the straw are mutually glued and solidly joined, also contemplating cold welding that, unlike fusion welding, is performed without a liquid phase (or liquid) being present in the joint of the parts to be joined.
  • the walls of the mouth of the upper end of the straw are solidly joined to each other by a solid state welding process, which is carried out without the fusion of the interface of the Two walls to weld.
  • the heat-welded portion of the package comprises an upper zone, which envelops and closes the upper end of the straw, and a lower zone, which holds the straw, the heat-welded portion being adapted so that, in the operation of opening the container , can be cut or torn so that the upper area can be removed to uncover the upper end of the straw and the lower area continues to close the container and hold said straw.
  • the heat-welded portion is provided with a weakening line, transversely arranged with respect to the straw, along which it can be cut or torn.
  • another aspect of the invention is a process for the manufacture of a container according to the invention, characterized in that the walls of the mouth of the upper end of the straw are crushed and hermetically welded with a reversible welding immediately before the straw is introduced. in the container in the process of being manufactured, before starting the formation the heat-sealed portion that seals the container tightly and that holds the straw.
  • the straws that are fed into the machine for the manufacture of the packages as a consumable element are straws obtained in a conventional manner, obtained by transversely cutting an extruded cannula, which does not make the supply more expensive.
  • an intermediate station into the machine for the manufacture of the packages, which between the usual operations of holding a straw and disposing it in the packaging in the process of manufacturing, carries performing the intermediate operation of crushing and sealing the walls of its upper end with a reversible welding.
  • the walls of the mouth of the upper end of the straw are crushed and welded tightly with a reversible weld immediately after the straw is introduced into the container in the process of manufacture, before completing the portion formation heat-sealed sealing the container and holding the straw.
  • the walls of the upper mouth of the straw is provided in a variant of the procedure a set of jaws that exert pressure and crush the straw without providing said heat jaws to the material constituting Ia straw. Prior to the jaws crushing the straw, the possibility of heating the portion of the straw whose walls are intended to be crushed and welded together is contemplated.
  • a machine for implementing both variants of the process according to the invention comprises means for grabbing a straw from a straw storage and for transport and placement in a container in the process of being manufactured, so that its lower end is inserted into the container , the machine being characterized in that it is provided with means to crush and weld with a reversible welding the walls of the mouth of the upper end of the straw after the straw is seized and separated from the other straws of the straw storage.
  • the machine comprises means for heating the upper end portion of the straw from the inside of said straw, and a set of jaws for crushing and sealing the previously heated walls of the upper end mouth of the straw.
  • a cannula is disclosed, of the type used to sip liquids contained in a container, in which the walls of the mouth of at least one of its ends are crushed and hermetically welded with a reversible welding, so that said mouth of the straw can be easily opened by simple digital pressure.
  • FIG. 1 and 2 are elevation views of a container according to the invention, before and immediately after opening;
  • Figs. 3 and 4 show the upper mouth of the straw before and after a user exerts a slight digital pressure on the walls of the straw, in the proximity of the mouth and in a direction perpendicular to the crushing to which said walls have been subjected;
  • Figs. 5 and 6 are side views of the straw, and more specifically of its upper end, the walls being crushed and hermetically welded with a reversible weld;
  • Figs. 7 and 8 show a sequence to perform, according to a variant of The invention, the operation of crushing and welding the walls of a straw; Y
  • Figs. 9a and 9b show schematic views of respective pairs of jaws suitable for reversible welding on the straw.
  • the container 1 of Fig. 1 is of the type formed by one or several flexible sheets of heat-sealable material that form a bottom and two facing side walls, the opening of the container 1 being closed by the union of its walls along its edge upper, the package presenting a central thermo-welded portion 3 comprising an upper area 3a, which wraps and closes the upper end of a straw 4 whose lower end is submerged in the bosom of the beverage, and a lower zone 3b, which encircles and hold said straw 4.
  • the heat-welded portion 3 is provided with a weakening line 9, transversely arranged with respect to the straw 4, along which the walls of the container 1 can be cut or torn, as shown in Fig. 2, to remove from the container 1 the upper portion 3a of the heat-welded portion 3, the upper end of the straw 4 being uncovered.
  • Figs. 5 and 6 show two examples of a straw 4 optimal for the purpose of the invention, formed by a polyethylene cannula between 0.2 and 0.8 mm thick, the walls 5 and 6 of the mouth of its upper end being crushed and mutually joined by fusion of the material itself of which the straws 4 are constituted, the weld 7 extending from the walls 5 and 6 of the straws 4 along a transverse strip, of a width between 1 and 2 mm., which to the- The end edge of the straw 4 is positioned or is arranged very close to said end edge, at a distance preferably not greater than 1 mm.
  • the weld 7 is constituted by two series of parallel, longitudinal and transverse lines, respectively, which intersect by determining between them small portions of un welded wall
  • the two series of Parallel lines follow inclined directions with respect to the longitudinal axis of the straw 4, following directions not necessarily orthogonal, determining among them small portions of un-welded wall in the form of a rhombus or rhomboid, as appropriate.
  • the weld comprises a series of lines parallel to each other and transversely arranged with respect to the longitudinal axis of the straw.
  • the solution of the present invention has been successfully implemented in flexible and hard straws, obtaining more satisfactory results in terms of the ease of opening the mouth of the straws refers to the harder the straws are.
  • the solution according to the invention is also applicable when welding the walls of the straw mouth of a mixture of polypropylene and polyethylene.
  • the walls of the straw are constituted of a ductile material
  • the walls of the straw are joined following a cold welding procedure, by which pressure is applied and the walls of the straw are crushed by jaws without heat input.
  • the solution of reversibly welding the upper end of the straw can be carried out in situ, in the same machine that places the straw in the containers during its manufacture. It is envisaged that the operation of crushing and sealing the walls of the straw hermetically will be carried out well immediately before the straw is introduced into the container in the process of manufacture, before starting the formation of the heat-sealed portion that tightly closes the container and holds the straw, or alternatively after the straw is introduced into the container in the process of manufacture, before completing the formation of the heat-sealed portion that tightly closes the container and holds the straw.
  • hot jaws can be used, preferably at a temperature between 80 and 200 0 C, and more preferably between 95 and 12O 0 C, according to the thickness of Ia straw and the material of which it is formed, or alternatively cold jaws may be used, at room temperature, the area of the straw intended to be crushed for welding having been previously heated.
  • the straw can be heated from the inside, or from the outside, for example by means of a hot gas, or apply the mouth of the straw on a hot body that transmits heat by contact to the area destined to be welded.
  • Figs. 7 and 8 show a sequence of action of a set of cold jaws 10 that crush the walls 5, 6 of the upper end of the straw 4 after the mouth 8 of the straw is applied against a body 1 1 hot.
  • Figs. 9a and 9b two variants of a set of jaws 10 suitable for welding the walls of the straw with or without heat input have been represented.
  • the jaws 10 have an operative surface 12 with a profile with a crenellated shape, in which each jaw comprises a series of projections and recesses in functional correspondence with those of the other jaw, so that the protrusions of a first jaw are complementary and fit with some adjustment in the recesses of the second jaw when they approach to crush the straw.
  • the profile is devoid of living edges, and that its outermost edges are conveniently rounded to avoid splitting the walls of the straw when the jaws are approached to crush the body of the straw.
  • the profile of the jaws comprises a single step, with a slightly inclined central ramp, also being devoid of sharp edges to avoid splitting the walls of the straw.

Abstract

The present invention relates to a container for holding beverages comprising at its mouth a heat-welded portion (3) hermetically sealing the container and holding a straw (4) the lower end of which is submerged in the beverage, the walls of the opening of the upper end of the straw being crushed and hermetically welded with a reversible weld (7) for the purpose of preventing the accidental spillage of the beverage when the container is manipulated during its opening, and such that said opening of the straw (4) can easily be opened by simple pressure with the fingers. The invention also relates to a machine for the manufacture of containers comprising means for performing the mentioned reversible weld after the straw is gripped and separated from the remaining straws of a straw storage.

Description

D E S C R I P C I Ó N D E S C R I P C I Ó N
"Envase con pajilla y procedimiento de fabricación""Container with straw and manufacturing procedure"
Sector técnico de Ia invenciónTechnical sector of the invention
La invención se refiere a un envase para contener bebidas que en su embocadura comprende una porción termosoldada que cierra herméticamente el envase y que sujeta una pajilla cuyo extremo inferior está sumergido en el seno de Ia bebida.The invention relates to a container for containing beverages which in its mouthpiece comprises a heat-sealed portion that hermetically closes the container and that holds a straw whose bottom end is submerged in the bosom of the beverage.
Antecedentes de Ia invenciónBackground of the invention
Se conocen en Ia actualidad diferentes variantes de envases para bebidas que incorporan una pajilla, cuyo extremo inferior está sumergido en el seno de dicha bebida, para sorber las bebidas contenidas en el envase. Por razones de higiene, Ia boca superior de Ia pajilla está envuelta o protegida del exterior mediante elementos auxiliares, o mediante una parte o componentes del propio envase, de modo que el envase debe manipularse para destapar o acceder a Ia boca de Ia pajilla. Cuando los envases están constituidos de un material plástico flexible, durante Ia manipulación del envase éste puede aplastarse y Ia bebida puede verterse a través de su boca superior.Different variants of beverage containers that incorporate a straw, the lower end of which is submerged in said beverage, are known today to sip the drinks contained in the package. For reasons of hygiene, the upper mouth of the straw is wrapped or protected from the outside by auxiliary elements, or by a part or components of the package itself, so that the package must be manipulated to uncover or access the mouth of the straw. When the containers are constituted of a flexible plastic material, during the manipulation of the container it can be crushed and the beverage can be poured through its upper mouth.
Una forma de solventar este inconveniente se describe en los documentos de patente US 2003071136 y WO 2008072060, en los que se dota al extremo superior de Ia pajilla unas aletas que se deforman cuando el usuario succiona el fluido contenido del envase pero que adoptan por defecto una posición en Ia que obturan Ia boca superior de Ia pajilla. Mientras que en el primer documento las aletas se proveen en un plano transversal a su embocadura, en el segundo documento Ia pajilla está dotada de una serie de cortes en su pared lateral que determinan sendas aletas.One way of solving this problem is described in US 2003071136 and WO 2008072060, in which the fins are deformed at the upper end of the straw when the user sucks the fluid contained in the container but adopts by default a position in which the upper mouth of the straw is sealed. While in the first document the fins are provided in a plane transverse to their mouth, in the second document the straw is provided with a series of cuts in its side wall that determine both fins.
Otra forma de solventar el inconveniente citado se describe en el documento de patente EP 0997393, que muestra una pajilla cuyo extremo superior está permanentemente sellado por soldadura, siendo necesario dotar a Ia pajilla de una línea de corte o rasgado para separar del cuerpo de Ia pajilla el extremo final sellado, con el objeto de obtener un extremo superior abierto a través del cual puede fluir el líquido contenido en el envase. Explicación de Ia invenciónAnother way of solving the aforementioned drawback is described in patent document EP 0997393, which shows a straw whose upper end is permanently sealed by welding, it being necessary to provide the straw with a cut or torn line to separate from the body of the straw the sealed end end, in order to obtain an open upper end through which the liquid contained in the package can flow. Explanation of the invention
El envase según Ia invención es del tipo que en su embocadura comprende una porción termosoldada que cierra herméticamente el envase y que sujeta una pajilla cuyo extremo inferior está sumergido en el seno de Ia bebida.The container according to the invention is of the type that in its mouth comprises a heat-sealed portion that tightly closes the container and that holds a straw whose lower end is submerged in the bosom of the beverage.
En esencia, el envase se caracteriza porque las paredes de Ia boca del extremo superior de Ia pajilla están aplastadas y soldadas herméticamente con una soldadura reversible, de modo que Ia boca de Ia pajilla puede ser fácilmente abierta por simple presión digital. Según una variante de Ia invención, las paredes de Ia boca del extremo superior de Ia pajilla están soldadas por fusión del propio material de que está constituida Ia pajilla, y Ia soldadura se extiende por una franja transversal a Ia pajilla, estando su anchura comprendida entre 0,5 y 3 mm, y más preferentemente entre 1 y 2 mm. De acuerdo con una forma de realización preferida, Ia soldadura está constituida por una serie de líneas entrecruzadas, que determinan entre ellas pequeñas porciones de pared sin soldar.In essence, the package is characterized in that the walls of the mouth of the upper end of the straw are hermetically crushed and welded with a reversible weld, so that the mouth of the straw can be easily opened by simple digital pressure. According to a variant of the invention, the walls of the mouth of the upper end of the straw are welded by fusion of the material of which the straw is constituted, and the welding is extended by a strip transverse to the straw, its width being between 0.5 and 3 mm, and more preferably between 1 and 2 mm. According to a preferred embodiment, the weld is constituted by a series of intersecting lines, which determine between them small portions of the wall without welding.
En el contexto de Ia presente invención, se utiliza el término soldadura para definir que las dos paredes de Ia embocadura de Ia pajilla están mutuamente pega- das y unidas sólidamente, contemplándose también soldaduras en frío que, a diferencia de Ia soldadura por fusión, se realizan sin que una fase líquida (o líquido) esté presente en Ia articulación de las partes a unir.In the context of the present invention, the term welding is used to define that the two walls of the mouth of the straw are mutually glued and solidly joined, also contemplating cold welding that, unlike fusion welding, is performed without a liquid phase (or liquid) being present in the joint of the parts to be joined.
Así, en otra variante de Ia invención, las paredes de Ia boca del extremo superior de Ia pajilla están unidas sólidamente entre sí mediante un proceso de sol- dadura en estado sólido, que se lleva a cabo sin producirse Ia fusión de Ia interfaz de las dos paredes a soldar.Thus, in another variant of the invention, the walls of the mouth of the upper end of the straw are solidly joined to each other by a solid state welding process, which is carried out without the fusion of the interface of the Two walls to weld.
Según otra característica, Ia porción termosoldada del envase comprende una zona superior, que envuelve y cierra el extremo superior de Ia pajilla, y una zona inferior, que sujeta Ia pajilla, estando adaptada Ia porción termosoldada para que, en Ia operación de apertura del envase, pueda ser cortada o rasgada de forma que Ia zona superior pueda retirarse para destapar el extremo superior de Ia pajilla y Ia zona inferior continúe cerrando el envase y sujetando dicha pajilla. De forma preferida, Ia porción termosoldada está dotada de una línea de debilitamiento, transversalmente dispuesta respecto de Ia pajilla, a Io largo de Ia cual puede ser cortada o rasgada.According to another characteristic, the heat-welded portion of the package comprises an upper zone, which envelops and closes the upper end of the straw, and a lower zone, which holds the straw, the heat-welded portion being adapted so that, in the operation of opening the container , can be cut or torn so that the upper area can be removed to uncover the upper end of the straw and the lower area continues to close the container and hold said straw. Preferably, the heat-welded portion is provided with a weakening line, transversely arranged with respect to the straw, along which it can be cut or torn.
Cabe destacar además que Ia solución de soldar de forma reversible el ex- tremo superior de Ia pajilla es ventajosa respecto de las conocidas hasta Ia fecha, ya que mientas que Ia modificación que requiere una pajilla convencional para Ia puesta en práctica de Ia invención puede llevarse a cabo in situ, en Ia misma máquina que coloca las pajillas en los envases durante su fabricación, esto no parece posible para las pajillas descritas en los documentos citados. Así, otro aspecto de Ia invención es un procedimiento para Ia fabricación de un envase según Ia invención, caracterizado porque las paredes de Ia boca del extremo superior de Ia pajilla se aplastan y se sueldan herméticamente con una soldadura reversible inmediatamente antes de ser introducida Ia pajilla en el envase en curso de fabricación, antes de iniciar Ia formación Ia porción termosoldada que cie- rra herméticamente el envase y que sujeta Ia pajilla.It should also be noted that the solution of reversibly welding the upper end of the straw is advantageous with respect to those known to date, since you lie that the modification required by a conventional straw for the implementation of the invention can be carried out. carried out in situ, in the same machine that places the straws in the containers during its manufacture, this does not seem possible for the straws described in the cited documents. Thus, another aspect of the invention is a process for the manufacture of a container according to the invention, characterized in that the walls of the mouth of the upper end of the straw are crushed and hermetically welded with a reversible welding immediately before the straw is introduced. in the container in the process of being manufactured, before starting the formation the heat-sealed portion that seals the container tightly and that holds the straw.
En otras palabras, las pajillas que se alimentan en Ia máquina para Ia fabricación de los envases como elemento consumible son pajillas obtenidas de forma convencional, obtenidas de cortar transversalmente una cánula extrudida, Io que no encarece el suministro. Así, para Ia puesta en práctica del procedimiento según Ia invención tan sólo se requiere incorporar a Ia máquina para Ia fabricación de los envases una estación intermedia, que entre las operaciones habituales de sujetar una pajilla y disponerla en el envase en curso de fabricación, lleve a cabo Ia operación intermedia de aplastar y soldar herméticamente las paredes de su extremo superior con una soldadura reversible. En otra variante de Ia invención, las paredes de Ia boca del extremo superior de Ia pajilla se aplastan y se sueldan herméticamente con una soldadura reversible inmediatamente después de ser introducida Ia pajilla en el envase en curso de fabricación, antes de completarse Ia formación de porción termosoldada que cierra herméticamente el envase y que sujeta Ia pajilla. En Ia operación de aplastar y soldar herméticamente con una soldadura reversible las paredes de Ia boca superior de Ia pajilla se prevé utilizar en una variante del procedimiento un juego de mordazas que ejercen presión y aplastan Ia pajilla sin aportar dichas mordazas calor al material que constituye Ia pajilla. Previamente a que las mordazas aplasten Ia pajilla, se contempla Ia posibilidad de calentar Ia porción de Ia pajilla cuyas paredes están destinadas a ser aplastadas y unidas por soldadura.In other words, the straws that are fed into the machine for the manufacture of the packages as a consumable element are straws obtained in a conventional manner, obtained by transversely cutting an extruded cannula, which does not make the supply more expensive. Thus, for the implementation of the procedure according to the invention, it is only necessary to incorporate an intermediate station into the machine for the manufacture of the packages, which between the usual operations of holding a straw and disposing it in the packaging in the process of manufacturing, carries performing the intermediate operation of crushing and sealing the walls of its upper end with a reversible welding. In another variant of the invention, the walls of the mouth of the upper end of the straw are crushed and welded tightly with a reversible weld immediately after the straw is introduced into the container in the process of manufacture, before completing the portion formation heat-sealed sealing the container and holding the straw. In the operation of crushing and welding with a reversible weld the walls of the upper mouth of the straw is provided in a variant of the procedure a set of jaws that exert pressure and crush the straw without providing said heat jaws to the material constituting Ia straw. Prior to the jaws crushing the straw, the possibility of heating the portion of the straw whose walls are intended to be crushed and welded together is contemplated.
Una máquina para puesta en práctica de ambas variantes del procedimiento según Ia invención comprende medios para agarrar una pajilla de un almacenamiento de pajillas y para su transporte y colocación en un envase en curso de fabricación, de modo que su extremo inferior queda introducido en el envase, estando caracterizada Ia máquina porque está provista de medios para aplastar y soldar herméticamente con una soldadura reversible las paredes de Ia boca del extremo superior de Ia pajilla con posterioridad a que Ia pajilla sea agarrada y separada del resto de pajillas del almacenamiento de pajillas.A machine for implementing both variants of the process according to the invention comprises means for grabbing a straw from a straw storage and for transport and placement in a container in the process of being manufactured, so that its lower end is inserted into the container , the machine being characterized in that it is provided with means to crush and weld with a reversible welding the walls of the mouth of the upper end of the straw after the straw is seized and separated from the other straws of the straw storage.
De acuerdo con un modo de realización, Ia máquina comprende medios para calentar Ia porción extrema superior de Ia pajilla desde el interior de dicha pajilla, y un juego de mordazas para aplastar y soldar herméticamente las paredes previa- mente calentadas de Ia boca del extremo superior de Ia pajilla.In accordance with one embodiment, the machine comprises means for heating the upper end portion of the straw from the inside of said straw, and a set of jaws for crushing and sealing the previously heated walls of the upper end mouth of the straw.
Según otro aspecto de Ia invención se da a conocer una cánula, del tipo de las que se utilizan para sorber líquidos contenidos en un envase, en Ia que las paredes de Ia boca de al menos uno de sus extremos están aplastadas y soldadas herméticamente con una soldadura reversible, de modo que dicha boca de Ia pajilla puede ser fácilmente abierta por simple presión digital.According to another aspect of the invention, a cannula is disclosed, of the type used to sip liquids contained in a container, in which the walls of the mouth of at least one of its ends are crushed and hermetically welded with a reversible welding, so that said mouth of the straw can be easily opened by simple digital pressure.
Breve descripción de los dibujosBrief description of the drawings
En los dibujos adjuntos se ilustra, a título de ejemplo no limitativo, un envase según Ia invención y diferentes detalles de una pajilla. En concreto: Las Figs. 1 y 2 son sendas vistas en alzado de un envase según Ia invención, antes e inmediatamente después de su apertura;The attached drawings illustrate, by way of non-limiting example, a package according to the invention and different details of a straw. Specifically: Figs. 1 and 2 are elevation views of a container according to the invention, before and immediately after opening;
Las Figs. 3 y 4 muestran Ia boca superior de Ia pajilla antes y después de que un usuario ejerza una leve presión digital sobre las paredes de Ia pajilla, en Ia proximidad de Ia boca y en sentido perpendicular al del aplastamiento al que han sido sometidas dichas paredes;Figs. 3 and 4 show the upper mouth of the straw before and after a user exerts a slight digital pressure on the walls of the straw, in the proximity of the mouth and in a direction perpendicular to the crushing to which said walls have been subjected;
Las Figs. 5 y 6 son sendas vistas laterales de Ia pajilla, y más en concreto de su extremo superior estando las paredes aplastadas y soldadas herméticamente con una soldadura reversible;Figs. 5 and 6 are side views of the straw, and more specifically of its upper end, the walls being crushed and hermetically welded with a reversible weld;
Las Figs. 7 y 8 muestran una secuencia para realizar, según una variante de Ia invención, la operación de aplastar y soldar las paredes de una pajilla; yFigs. 7 and 8 show a sequence to perform, according to a variant of The invention, the operation of crushing and welding the walls of a straw; Y
Las Figs. 9a y 9b muestran sendas vistas esquemáticas de respectivos pares de mordazas aptos para realizar Ia soldadura reversible en Ia pajilla.Figs. 9a and 9b show schematic views of respective pairs of jaws suitable for reversible welding on the straw.
Descripción detallada de los dibujosDetailed description of the drawings
El envase 1 de Ia Fig. 1 es del tipo formado por una o varias láminas flexibles de material termosoldable que conforman un fondo y dos paredes laterales enfrentadas, estando Ia embocadura del envase 1 cerrada por Ia unión de sus paredes a Io largo de su borde superior, presentando el envase una porción termosol- dada 3 central que comprende una zona superior 3a, que envuelve y cierra el extremo superior de una pajilla 4 cuyo extremo inferior está sumergido en el seno de Ia bebida, y una zona inferior 3b, que ciñe y sujeta dicha pajilla 4.The container 1 of Fig. 1 is of the type formed by one or several flexible sheets of heat-sealable material that form a bottom and two facing side walls, the opening of the container 1 being closed by the union of its walls along its edge upper, the package presenting a central thermo-welded portion 3 comprising an upper area 3a, which wraps and closes the upper end of a straw 4 whose lower end is submerged in the bosom of the beverage, and a lower zone 3b, which encircles and hold said straw 4.
La porción termosoldada 3 está dotada de una línea de debilitamiento 9, transversalmente dispuesta respecto de Ia pajilla 4, a Io largo de Ia cual pueden ser cortadas o rasgadas las paredes del envase 1 , tal y como se ha representado en Ia Fig. 2, para retirarse del envase 1 Ia porción superior 3a de Ia porción termosoldada 3, destapándose el extremo superior de Ia pajilla 4.The heat-welded portion 3 is provided with a weakening line 9, transversely arranged with respect to the straw 4, along which the walls of the container 1 can be cut or torn, as shown in Fig. 2, to remove from the container 1 the upper portion 3a of the heat-welded portion 3, the upper end of the straw 4 being uncovered.
Con el propósito de evitar que al presionar en las paredes del envase 1 Ia bebida fluya por Ia pajilla y sea vertida al exterior a través de su boca superior, las paredes 5, 6 de Ia boca 8 del extremo superior de Ia pajilla 4 están aplastadas y soldadas herméticamente con una soldadura 7 reversible, representada en mayor detalle en las Figs. 5 y 6, de modo que dicha boca de Ia pajilla 4 puede ser fácilmente abierta por simple presión digital, tal y como se ha representado en las Figs. 3 y 4, ejerciendo presión sobre los cantos de Ia porción aplastada de Ia pajilla 4. Y es que el solicitante ha advertido que de realizarse Ia operación de soldadura en condiciones controladas, puede alcanzarse de forma no esperada una soldadura reversible, aún cuando se funde el material de que está constituida Ia pajilla.In order to avoid that when pressing on the walls of the container 1 the drink flows through the straw and is poured outwardly through its upper mouth, the walls 5, 6 of the mouth 8 of the upper end of the straw 4 are crushed and welded tightly with a reversible weld 7, shown in greater detail in Figs. 5 and 6, so that said mouth of the straw 4 can be easily opened by simple digital pressure, as shown in Figs. 3 and 4, exerting pressure on the edges of the crushed portion of the straw 4. And it is that the applicant has warned that if the welding operation is carried out under controlled conditions, a reversible welding can be achieved unexpectedly, even when it melts the material of which the straw is constituted.
Las Figs. 5 y 6 muestran sendos ejemplos de una pajilla 4 óptima para el propósito de Ia invención, formada por una cánula de polietileno de espesor entre 0,2 y 0,8 mm., estando las paredes 5 y 6 de Ia boca de su extremo superior aplastadas y mutuamente unidas por fusión del propio material de que están constituidas las pajillas 4, extendiéndose Ia soldadura 7 de las paredes 5 y 6 de las pajillas 4 a Io largo de una franja transversal, de anchura comprendida entre 1 y 2 mm., que al- canza el borde extremo de Ia pajilla 4 o está dispuesta muy próximo a dicho borde extremo, a una distancia preferentemente no superior a 1 mm.Figs. 5 and 6 show two examples of a straw 4 optimal for the purpose of the invention, formed by a polyethylene cannula between 0.2 and 0.8 mm thick, the walls 5 and 6 of the mouth of its upper end being crushed and mutually joined by fusion of the material itself of which the straws 4 are constituted, the weld 7 extending from the walls 5 and 6 of the straws 4 along a transverse strip, of a width between 1 and 2 mm., which to the- The end edge of the straw 4 is positioned or is arranged very close to said end edge, at a distance preferably not greater than 1 mm.
Mientras que en el ejemplo de Ia Fig. 5 Ia soldadura 7 está constituida por dos series de líneas paralelas, longitudinales y transversales, respectivamente, que se entrecruzan determinando entre ellas pequeñas porciones de pared sin soldar, en Ia Fig. 6 las dos series de líneas paralelas siguen direcciones inclinadas respecto del eje longitudinal de Ia pajilla 4, siguiendo direcciones no necesariamente ortogonales, determinando entre ellas pequeñas porciones de pared sin soldar en forma de rombo o romboide, según el caso. En otra variante no representada, Ia soldadu- ra comprende una serie de líneas paralelas entre sí y transversalmente dispuestas respecto del eje longitudinal de Ia pajilla.While in the example of Fig. 5, the weld 7 is constituted by two series of parallel, longitudinal and transverse lines, respectively, which intersect by determining between them small portions of un welded wall, in Fig. 6 the two series of Parallel lines follow inclined directions with respect to the longitudinal axis of the straw 4, following directions not necessarily orthogonal, determining among them small portions of un-welded wall in the form of a rhombus or rhomboid, as appropriate. In another variant not shown, the weld comprises a series of lines parallel to each other and transversely arranged with respect to the longitudinal axis of the straw.
La solución de Ia presente invención se ha implementado con éxito en pajillas flexibles y duras, obteniéndose resultados más satisfactorios en cuanto a Ia facilidad de apertura de Ia boca de Ia pajilla se refiere cuanto más dura es Ia pajilla. También es de aplicación Ia solución según Ia invención cuando se sueldan por fusión las paredes de Ia embocadura de pajillas de una mezcla de polipropileno y polietileno.The solution of the present invention has been successfully implemented in flexible and hard straws, obtaining more satisfactory results in terms of the ease of opening the mouth of the straws refers to the harder the straws are. The solution according to the invention is also applicable when welding the walls of the straw mouth of a mixture of polypropylene and polyethylene.
Tomando ventaja de que las paredes de Ia pajilla están constituidas de un material dúctil, en otra variante de Ia invención las paredes de Ia pajilla se unen siguiendo un procedimiento de soldadura en frío, mediante cual se aplica presión y se aplastan las paredes de Ia pajilla mediante mordazas sin aporte de calor.Taking advantage that the walls of the straw are constituted of a ductile material, in another variant of the invention the walls of the straw are joined following a cold welding procedure, by which pressure is applied and the walls of the straw are crushed by jaws without heat input.
La solución de soldar de forma reversible el extremo superior de Ia pajilla puede llevarse a cabo in situ, en Ia misma máquina que coloca las pajillas en los envases durante su fabricación. Se prevé que Ia operación de aplastar y soldar herméticamente las paredes de Ia pajilla se lleve a cabo bien inmediatamente antes de ser introducida Ia pajilla en el envase en curso de fabricación, antes de iniciarse Ia formación de Ia porción termosoldada que cierra herméticamente el envase y sujeta Ia pajilla, o alternativamente después de ser introducida Ia pajilla en el envase en curso de fabricación, antes de completarse Ia formación de Ia porción termosoldada que cierra herméticamente el envase y sujeta Ia pajilla.The solution of reversibly welding the upper end of the straw can be carried out in situ, in the same machine that places the straw in the containers during its manufacture. It is envisaged that the operation of crushing and sealing the walls of the straw hermetically will be carried out well immediately before the straw is introduced into the container in the process of manufacture, before starting the formation of the heat-sealed portion that tightly closes the container and holds the straw, or alternatively after the straw is introduced into the container in the process of manufacture, before completing the formation of the heat-sealed portion that tightly closes the container and holds the straw.
Para realizar Ia soldadura cuando se sueldan las paredes por fusión pueden emplearse mordazas calientes, preferentemente a una temperatura comprendida entre 80 y 2000C, y más preferiblemente entre 95 y 12O0C, según el grueso de Ia pajilla y el material de que está formada, o alternativamente pueden emplearse mordazas frías, a temperatura ambiente, habiéndose calentado previamente Ia zona de Ia pajilla destinada a ser aplastada para su soldadura. Para ello puede calentarse Ia pajilla desde su interior, o desde el exterior, por ejemplo mediante un gas caliente, o aplicar Ia embocadura de Ia pajilla sobre un cuerpo caliente que transmite por contacto el calor a Ia zona destinada a ser soldada. Esta última variante se ha representado en las Figs. 7 y 8, que muestran una secuencia de actuación de un juego de mordazas frías 10 que aplastan las paredes 5, 6 del extremo superior de Ia pajilla 4 con posterioridad a que Ia boca 8 de Ia pajilla sea aplicada contra un cuer- po 1 1 caliente.To perform the welding when the walls are welded by melting hot jaws can be used, preferably at a temperature between 80 and 200 0 C, and more preferably between 95 and 12O 0 C, according to the thickness of Ia straw and the material of which it is formed, or alternatively cold jaws may be used, at room temperature, the area of the straw intended to be crushed for welding having been previously heated. For this purpose, the straw can be heated from the inside, or from the outside, for example by means of a hot gas, or apply the mouth of the straw on a hot body that transmits heat by contact to the area destined to be welded. This last variant has been represented in Figs. 7 and 8, which show a sequence of action of a set of cold jaws 10 that crush the walls 5, 6 of the upper end of the straw 4 after the mouth 8 of the straw is applied against a body 1 1 hot.
Tal y como se ha explicado anteriormente, también se contempla Ia posibilidad de emplear un juego de mordazas frías, realizándose Ia operación de soldadura a temperatura ambiente, sin aporte de calor y únicamente ejerciendo presión contra las paredes de Ia pajilla. En las Figs. 9a y 9b se han representado dos variantes de un juego de mordazas 10 apto para realizar Ia soldadura de las paredes de Ia pajilla con o sin aporte de calor. En Ia variante de Ia Fig. 9a las mordazas 10 presentan una superficie operativa 12 con un perfil de forma general almenada, en el que cada mordaza comprende una serie de salientes y entrantes en correspondencia funcional con los de Ia otra mordaza, de forma que los salientes de una primera mordaza son complementarios y encajan con cierto ajuste en los entrantes de Ia segunda mordaza cuando éstas se acercan para aplastar Ia pajilla. Se observa además que el perfil está desprovisto de cantos vivos, y que sus aristas más exteriores están convenientemente redondeadas para evitar hender las paredes de Ia pajilla cuando las mor- dazas son acercadas para aplastar el cuerpo de Ia pajilla.As explained above, the possibility of using a set of cold jaws is also contemplated, the welding operation being carried out at room temperature, without heat input and only exerting pressure against the walls of the straw. In Figs. 9a and 9b two variants of a set of jaws 10 suitable for welding the walls of the straw with or without heat input have been represented. In the variant of Fig. 9a, the jaws 10 have an operative surface 12 with a profile with a crenellated shape, in which each jaw comprises a series of projections and recesses in functional correspondence with those of the other jaw, so that the protrusions of a first jaw are complementary and fit with some adjustment in the recesses of the second jaw when they approach to crush the straw. It is also observed that the profile is devoid of living edges, and that its outermost edges are conveniently rounded to avoid splitting the walls of the straw when the jaws are approached to crush the body of the straw.
En Ia variante de Ia Fig. 9b, se observa que el perfil de las mordazas comprende un único escalón, con una rampa central ligeramente inclinada, estando también desprovisto de cantos vivos para evitar hender las paredes de Ia pajilla. In the variant of Fig. 9b, it is observed that the profile of the jaws comprises a single step, with a slightly inclined central ramp, also being devoid of sharp edges to avoid splitting the walls of the straw.

Claims

R E I V I N D I C A C I O N E S
1.- Envase (1 ) para contener bebidas (2), que en su embocadura comprende una porción termosoldada (3) que cierra herméticamente el envase y que sujeta una pajilla (4) cuyo extremo inferior está sumergido en el seno de Ia bebida, caracterizado porque las paredes (5, 6) de Ia boca (8) del extremo superior de Ia pajilla están aplastadas y soldadas herméticamente con una soldadura (7) reversible, de modo que dicha boca de Ia pajilla puede ser fácilmente abierta por simple presión digital.1.- Container (1) to contain drinks (2), which in its mouth comprises a heat-sealed portion (3) that tightly closes the container and that holds a straw (4) whose lower end is submerged in the bosom of the beverage, characterized in that the walls (5, 6) of the mouth (8) of the upper end of the straw are crushed and hermetically welded with a reversible weld (7), so that said mouth of the straw can be easily opened by simple digital pressure .
2.- Envase (1 ) según Ia reivindicación 1 , caracterizado porque las paredes2. Packaging (1) according to claim 1, characterized in that the walls
(5, 6) de Ia boca (8) del extremo superior de Ia pajilla (4) están soldadas por fusión del propio material de que está constituida Ia pajilla, y porque Ia soldadura (7) se extiende por una franja transversal a Ia pajilla, estando su anchura comprendida entre 0,5 y 3 mm.(5, 6) of the mouth (8) of the upper end of the straw (4) are welded by fusion of the material of which the straw is constituted, and because the weld (7) extends through a strip transverse to the straw , its width being between 0.5 and 3 mm.
3.- Envase (1 ) según Ia reivindicación 2, caracterizado porque Ia anchura de Ia franja transversal está comprendida entre 1 y 2 mm.3. Packaging (1) according to claim 2, characterized in that the width of the transverse strip is between 1 and 2 mm.
4.- Envase (1 ) según las reivindicaciones 2 ó 3, caracterizado porque Ia soldadura (7) está constituida por una serie de líneas entrecruzadas, que determinan entre ellas pequeñas porciones de pared sin soldar.4. Container (1) according to claims 2 or 3, characterized in that the weld (7) is constituted by a series of intersecting lines, which determine between them small portions of the wall without welding.
5.- Envase (1 ) según Ia reivindicación 1 , caracterizado porque las paredes5. Packaging (1) according to claim 1, characterized in that the walls
(5, 6) de Ia boca (8) del extremo superior de Ia pajilla están unidas sólidamente entre sí mediante un proceso de soldadura en estado sólido, que se lleva a cabo sin producirse Ia fusión de Ia interfaz de las dos paredes a soldar.(5, 6) of the mouth (8) of the upper end of the straw are solidly joined together by a solid state welding process, which is carried out without the fusion of the interface of the two walls to be welded.
6.- Envase (1 ) según una cualquiera de las reivindicaciones anteriores, caracterizado porque dicha porción termosoldada (3) comprende una zona superior (3a), que envuelve y cierra el extremo superior de Ia pajilla (4), y una zona inferior (3b), que sujeta Ia pajilla, estando además adaptada Ia porción termosoldada para que, en Ia operación de apertura del envase, pueda ser cortada o rasgada de forma que la zona superior pueda retirarse para destapar el extremo superior de Ia pajilla y Ia zona inferior continúe cerrando el envase y sujetando dicha pajilla.6. Container (1) according to any one of the preceding claims, characterized in that said heat-welded portion (3) comprises an upper zone (3a), which envelops and closes the upper end of the straw (4), and a lower zone ( 3b), which holds the straw, the thermo-welded portion being also adapted so that, in the operation of opening the container, it can be cut or torn in a way that the upper zone can be removed to uncover the upper end of the straw and the lower zone continue closing the container and holding said straw.
7.- Envase (1 ) según Ia reivindicación 6, caracterizado porque Ia porción termosoldada (3) está dotada de una línea de debilitamiento (9), transversalmente dispuesta respecto de Ia pajilla (4), a Io largo de Ia cual puede ser cortada o rasgada.7. Container (1) according to claim 6, characterized in that the heat-welded portion (3) is provided with a weakening line (9), transversely arranged with respect to the straw (4), along which it can be cut or torn.
8.- Procedimiento para Ia fabricación de un envase según una cualquiera de las reivindicaciones 1 a 7, que comprende las operaciones de8. Method for manufacturing a package according to any one of claims 1 to 7, which comprises the operations of
- agarrar una pajilla (4) de un almacenamiento de pajillas; y- grab a straw (4) from a straw storage; Y
- transportar y colocar en un envase (1 ) en curso de fabricación Ia pajilla (4), de modo que su extremo inferior queda introducida en el envase, estando el procedimiento caracterizado porque también comprende Ia operación de aplastar y soldar herméticamente con una soldadura reversible las paredes (5, 6) de Ia boca (8) del extremo superior de Ia pajilla con posterioridad a que Ia pajilla sea agarrada y separada del resto de pajillas del almacenamiento de pajillas.- transport and place in a container (1) in the process of manufacturing the straw (4), so that its lower end is inserted in the container, the procedure being characterized in that it also comprises the operation of crushing and welding tightly with a reversible welding the walls (5, 6) of the mouth (8) of the upper end of the straw after the straw is grasped and separated from the other straws of the straw storage.
9.- Procedimiento según Ia reivindicación anterior, caracterizado porque las paredes (5, 6) de Ia boca (8) del extremo superior de Ia pajilla (4) se aplastan y se sueldan herméticamente con una soldadura (7) reversible inmediatamente antes de ser introducida Ia pajilla en el envase en curso de fabricación, antes de iniciarse Ia formación de Ia porción termosoldada que cierra herméticamente el envase (1 ) y sujeta Ia pajilla.9. Method according to the preceding claim, characterized in that the walls (5, 6) of the mouth (8) of the upper end of the straw (4) are crushed and welded tightly with a reversible weld (7) immediately before being introduced the straw in the container in the process of manufacture, before starting the formation of the heat-sealed portion that tightly closes the container (1) and holds the straw.
10.- Procedimiento según Ia reivindicación 8, caracterizado porque las paredes (5, 6) de Ia boca (8) del extremo superior de Ia pajilla (4) se aplastan y se sueldan herméticamente con una soldadura (7) reversible inmediatamente después de ser introducida Ia pajilla en el envase en curso de fabricación, antes de completarse Ia formación de Ia porción termosoldada que cierra herméticamente el envase (1 ) y sujeta Ia pajilla.10. Method according to claim 8, characterized in that the walls (5, 6) of the mouth (8) of the upper end of the straw (4) are crushed and welded tightly with a reversible weld (7) immediately after being introduced the straw in the container in the process of manufacturing, before completing the formation of the heat-sealed portion that tightly closes the container (1) and holds the straw.
11.- Procedimiento según una cualquiera de las reivindicaciones 8 a 10, caracterizado porque en Ia operación de aplastar y soldar herméticamente con una soldadura reversible las paredes (5, 6) de Ia boca superior (8) de Ia pajilla (4) se utiliza un juego de mordazas (10) que ejercen presión y aplastan Ia pajilla sin aportar dichas mordazas calor al material que constituye Ia pajilla.11. Method according to any one of claims 8 to 10, characterized in that in the operation of crushing and welding tightly with a Reversible welding of the walls (5, 6) of the upper mouth (8) of the straw (4) uses a set of jaws (10) that exert pressure and crush the straw without providing said heat jaws to the material constituting the straw.
12.- Procedimiento según Ia reivindicación anterior, caracterizado porque previamente a que las mordazas (10) aplasten Ia pajilla (4), Ia porción de Ia pajilla cuyas paredes (5, 6) están destinadas a ser aplastadas y unidas por soldadura ha sido calentada.12. Method according to the preceding claim, characterized in that prior to the jaws (10) crushing the straw (4), the portion of the straw whose walls (5, 6) are intended to be crushed and welded together has been heated .
13.- Máquina para Ia fabricación de envases, que comprende medios para agarrar una pajilla (4) de un almacenamiento de pajillas y para su transporte y colocación en un envase (1 ) en curso de fabricación, de modo que su extremo inferior queda introducido en el envase, caracterizada porque está provista de medios para aplastar y soldar herméticamente con una soldadura (7) reversible las paredes (5, 6) de Ia boca (8) del extremo superior de Ia pajilla con posterioridad a que Ia pajilla sea agarrada y separada del resto de pajillas del almacenamiento de pajillas.13.- Machine for the manufacture of packages, which comprises means for grabbing a straw (4) from a straw storage and for transport and placement in a container (1) in the process of manufacturing, so that its lower end is introduced in the package, characterized in that it is provided with means to crush and weld with a reversible welding (7) the walls (5, 6) of the mouth (8) of the upper end of the straw after the straw is grasped and separated from the other straws of the straw storage.
14.- Máquina según Ia reivindicación anterior, caracterizada porque comprende medios para calentar Ia porción extrema superior de Ia pajilla (4) desde el interior de dicha pajilla, y un juego de mordazas (10) para aplastar y soldar herméticamente las paredes previamente calentadas de Ia boca del extremo superior de Ia pajilla.14. Machine according to the preceding claim, characterized in that it comprises means for heating the upper end portion of the straw (4) from inside said straw, and a set of jaws (10) to crush and weld the previously heated walls of The mouth of the upper end of the straw.
15.- Cánula para sorber líquidos contenidos en un envase, tal como una paji- Ha (4), caracterizada porque las paredes (5, 6) de Ia boca (8) de al menos uno de sus extremos están aplastadas y soldadas herméticamente con una soldadura (7) reversible, de modo que dicha boca de Ia pajilla puede ser fácilmente abierta por simple presión digital.15.- Cannula to sip liquids contained in a container, such as a straw (4), characterized in that the walls (5, 6) of the mouth (8) of at least one of its ends are crushed and hermetically welded with a reversible welding (7), so that said blade mouth can be easily opened by simple digital pressure.
16.- Cánula según Ia reivindicación 15, caracterizada porque las paredes (5,16.- Cannula according to claim 15, characterized in that the walls (5,
6) están soldadas por fusión del propio material de que está constituida Ia cánula.6) they are welded by fusion of the material of which the cannula is constituted.
17.- Cánula según Ia reivindicación 15, caracterizada porque las paredes (5, 6) están unidas sólidamente entre sí mediante un proceso de soldadura en estado sólido, que se lleva a cabo sin producirse Ia fusión de Ia interfaz de las dos paredes a soldar. 17.- Cannula according to claim 15, characterized in that the walls (5, 6) are solidly joined together by means of a state welding process solid, which is carried out without the fusion of the interface of the two walls to be welded.
PCT/ES2010/070307 2009-05-11 2010-05-07 Container with straw and method for producing same WO2010130858A1 (en)

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ES200901242A ES2358394B1 (en) 2009-05-11 2009-05-11 PACK WITH STRAW AND MANUFACTURING PROCEDURE.

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WO2014009136A3 (en) * 2012-07-13 2014-04-03 Ball Europe Gmbh Container can, holding apparatus and method for providing a container can
US9975671B2 (en) 2012-07-13 2018-05-22 Ball Europe Gmbh Can, holding device and method for providing a can
WO2015036167A1 (en) * 2013-09-13 2015-03-19 Ball Europe Gmbh Container can and holding device
US9743786B2 (en) 2013-09-13 2017-08-29 Ball Europe Gmbh Container can and holding device

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ES2358394B1 (en) 2012-02-10

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