WO1998045188A1 - Plastic soldered pouring spout part for a refillable container - Google Patents

Plastic soldered pouring spout part for a refillable container Download PDF

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Publication number
WO1998045188A1
WO1998045188A1 PCT/EP1998/002007 EP9802007W WO9845188A1 WO 1998045188 A1 WO1998045188 A1 WO 1998045188A1 EP 9802007 W EP9802007 W EP 9802007W WO 9845188 A1 WO9845188 A1 WO 9845188A1
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WO
WIPO (PCT)
Prior art keywords
pouring
base body
plastic material
insert
welded
Prior art date
Application number
PCT/EP1998/002007
Other languages
German (de)
French (fr)
Inventor
Johannes Hins
Original Assignee
Georg Menshen Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Menshen Gmbh & Co. Kg filed Critical Georg Menshen Gmbh & Co. Kg
Priority to AU75227/98A priority Critical patent/AU7522798A/en
Publication of WO1998045188A1 publication Critical patent/WO1998045188A1/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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/10—Bag-type containers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1475—Inlet or outlet ports
    • 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
    • B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/583—Opening or contents-removing devices added or incorporated during package manufacture the non-integral spout having an elongate cross-sectional shape, e.g. canoe or boat shaped

Definitions

  • the invention relates to a pour-in welded part made of a plastic material for welding connection to a plastic container part and in particular a welded part for connecting to a container part in the form of a refill bag made of a film-like plastic material for the storage of e.g. liquid or pasty substances that tend to evaporate.
  • Evaporation can be effectively countered by forming such refill bags from a film material that is essentially diffusion-tight for the respective gases. Transferring this principle to the dimensionally stable weld-in part would mean a generally unacceptable restriction on the plastic materials from which the weld-in part can be formed. In particular, the use of plastic materials, such as polyethylene or polypropylene, which would be more economical and particularly suitable for injection molding would be prohibited, since these are not sufficiently diffusion-tight for the gases in question. So far, evaporation of part of the contents of the refill bags by diffusion of the gases through the sealing part has been accepted as unavoidable Storage time for products prone to evaporation packed in refill bags is limited accordingly.
  • the invention has for its object to provide a pouring welded part of the type mentioned, which is inexpensive to manufacture and process, the risk of evaporation of the contents of a container part connected to the welded part is at least substantially reduced by the welded part.
  • this object is achieved in that, in the case of a weld-in part made of a first plastic material for connection to a container part made of a second plastic material which is at least essentially impermeable to certain gases, in particular a container part made of a film-like plastic material, with a base body formed from the first plastic material at least one welding rib and a pouring passage provided in the base body, which creates a connection between the inside of the container part and the outside environment when the container part is connected to the weld-in part, on the base body an insert which is at least essentially impermeable to the specific gases and at least seals the pouring passage is.
  • the base body can thus be formed from any plastic material that is preferable for manufacturing or other reasons, even if it does not have a sufficient diffusion density for the respective gases.
  • the insert creates a barrier layer between the container contents and the weld-in part, which prevents or at least substantially limits access of the gases to the non-diffusion-tight weld-in part. Evaporation of the contents of the container by the weld-in part is therefore prevented effective means, without making the manufacture of packaging in the form of refill bags significantly more difficult or otherwise expensive.
  • the insert part preferably consists of essentially the same plastic material as the film-like container part and is also designed such that it can be pierced or separated by a pointed object.
  • FIG. 3 is a view similar to FIG. 1, a pour-in welded part according to a further embodiment of the invention
  • the pouring-welded part according to the first embodiment of the invention shown in FIGS. 1 and 2 comprises an integrally formed, dimensionally stable base body 1 made of a plastic material, which is inserted into a slit-shaped opening of a prefabricated container part (not shown) and is thus permanently connected by welding, for example ultrasonic welding can be.
  • Preferred plastic materials for the base body 1 are, due to their problem-free processing possibility, for example by injection molding, polyolefin plastics, such as polypropylene (PP), polyethylene (PE), polyamide (PA), and PVC and elastomer plastics.
  • plastic materials are generally not or not sufficiently gas-tight for certain gases, such as 0 2 , C0 2 , N 2 , by the gases being able to diffuse through the plastic material, the container part can easily expand to avoid evaporation of the contents for the gases mentioned, essentially dense materials, such as sheet-like composite materials based on a coated metal sheet, such as an aluminum sheet, are formed with coatings made of PP, polyethylene terephthalate (PETP), PE or PA.
  • the invention is not limited to the aforementioned special plastic and film materials.
  • connection can also be applied by other suitable connection methods, such as heat sealing or gluing.
  • the pouring-welded part comprises an essentially tubular neck region 2 with a suitable axial extension.
  • the neck area 2 and base body 1 are axially penetrated by a pouring passage 3.
  • the pouring passage 3 creates a connection between the inside of a film-like container part (not shown) and the outside environment when the pouring-welded part is connected to the container part.
  • a thread 4 can be formed on the neck area 2, onto which a screw cap (not shown) for closing the outlet opening of the pouring passage 3 can be screwed.
  • a rear gripping collar could also be provided on the neck area 2 in order to fasten a closure cap by bouncing it onto the pouring-welded part.
  • welding ribs 5 are provided for the film material of the container part, which are at a suitable axial distance from one another and are located in parallel radial planes extend to the central longitudinal axis of the welded-in part.
  • the welding ribs 5 can have a design according to EP-A-773893, to which reference can therefore be made for further details.
  • each welding rib 4 can be composed of a pair of diametrically opposite sections A, B with respect to the pouring passage 3, which taper towards the outside when viewed from above, which create a continuous notch-minimizing transition for the film material of the container part to be welded on.
  • a dividing wall 6 can extend radially outward from diametrical points of the neck region 2 and passes through the sections A, B of each welding rib 5 in the center.
  • the partition wall 6 forms a supporting wall between adjacent welding ribs 5, so that the predetermined radial and axial position with respect to the base body 1 is less than that during welding or later Maintain use occurring stresses.
  • the thickness of the welding fins 5 can be dimensioned for optimal dissipation of heat from the welding zone.
  • the partition 6 can protrude radially beyond the radial outer ends of the welding ribs 5 by a suitable amount.
  • a circular recess 7 is also made on the side of the end that is closest to the container part to be welded on, which concentrically surrounds the inlet opening of the pouring passage 3.
  • the recess 7 serves to receive an insert 8 made of a suitable material which is essentially impermeable to the gases in question, as shown in FIG. 2.
  • the insert part 8 seals the pouring passage 3 from the end of its entry, so that a substantial part of the base body 1 is practically shielded from the contents of the container part and thus gas diffusion through the base body 1 is avoided.
  • the insert part 8 can consist of a plastic material with a gas-tight property or of a plastic-coated suitable metallic foil material. Suitable materials are, in particular, film-like composite materials based on a coated metal foil, such as an aluminum foil, with coatings made of PP, polyethylene terephthalate (PETP), PE or PA. The same or approximately the same gas-tight film material as that from which the container part is formed is preferably used for the insert part 8.
  • the insert part 8 can be connected to the base body 1 in a gas- and liquid-tight manner by welding, gluing or in another suitable manner and have a structure that by means of a pointed object, for example by means of a mandrel molded onto a closure cap, an opening can be made in the insert part 8 in order to establish a connection between the inside of a container part welded to the pouring-welded part and the outside environment.
  • FIGS. 3 and 4 Another embodiment of the invention is shown in FIGS. 3 and 4. This differs from the previously described embodiment essentially only in an enlarged design of the gas-tight insert 8 '.
  • the insert part 8 ' not only covers the inlet opening of the pouring passage 3, but also essentially the entire surface of the welded part facing the container part to be welded, i.e. including the surface of the adjacent welding rib 6, which effectively counteracts any gas leakage through areas of the base body 1 other than those which lie circumferentially around the inlet opening of the pouring passage 3.
  • the recess 8 'on the recess 7' in the base body 1 is therefore not only introduced circumferentially around the inlet opening of the pouring passage 3, but also in accordance with the enlarged configuration of the insert part in the underside of the welding rib 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Material Composition (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Bag Frames (AREA)

Abstract

The invention relates to a soldered pouring spout part made of a first plastic material which is designed to be connected to a second plastic material that is substantially impermeable, at least with regard to certain gases, specially for a container part consisting of sheet-like plastic material. Said pouring spout part comprises a base body (1) formed from the first plastic material and having at least one soldered rib (5) and a pouring passage (3), connecting the inside of the container part and the outer areas when the container part is joined to the soldered part. An insert (8) sealing at least the pouring passage is provided on the base body (1), said insert being substantially impermeable, at least with regard to certain gases. The insert can consist of a coated metal film material and have structure which can be pierced by a pointed object. Preferably, the insert is located near the inlet of the pouring passage.

Description

Kunststoff-Ausgiess-Einschweissteil für Nachfüllbehälter Plastic pouring weld-in part for refill containers
Die Erfindung betrifft ein Ausgiess-Einschweissteil aus einem Kunststoffmaterial zum Schweissverbinden mit einem Kunststoff-Behälterteil und inbesondere ein Einschweissteil zum Verbinden mit einem Behälterteil in Gestalt eines Nachfüllbeutels aus einem folienartigen Kunststoffmaterial für die Bevorratung von z.B. flüssigen oder pastösen Substanzen, die zu Verdunstung neigen.The invention relates to a pour-in welded part made of a plastic material for welding connection to a plastic container part and in particular a welded part for connecting to a container part in the form of a refill bag made of a film-like plastic material for the storage of e.g. liquid or pasty substances that tend to evaporate.
Der Verdunstung kann wirksam dadurch entgegengetreten werden, dass solche Nachfüllbeutel aus einem für die jeweiligen Gase im wesentlichen diffusionsdichten Folienmaterial gebildet werden. Eine Übertragung dieses Prinzips auf den formstabilen Einschweissteil würde eine im allgemeinen nicht akzeptable Einschränkung der Kunststoffmaterialien bedeuten, aus denen der Einschweissteil gebildet werden kann. Insbesondere würde sich der Einsatz so preisgünstiger und für das Spritzgiessen besonders geeigneter Kunststoffmaterialien wie Polyäthylen oder Polypropylen verbieten, da diese für die betreffenden Gase nicht ausreichend diffusionsdicht sind. Bislang wurde daher ein Verdunsten eines Teils des Inhalts der Nachfüllbeutel durch Diffusion der Gase durch den Einschweissteil als unvermeidlich hingenommen oder die Lagerhaltungszeit für in Nachfüllbeuteln verpackte verdunstungsanfällige Produkte entsprechend begrenzt.Evaporation can be effectively countered by forming such refill bags from a film material that is essentially diffusion-tight for the respective gases. Transferring this principle to the dimensionally stable weld-in part would mean a generally unacceptable restriction on the plastic materials from which the weld-in part can be formed. In particular, the use of plastic materials, such as polyethylene or polypropylene, which would be more economical and particularly suitable for injection molding would be prohibited, since these are not sufficiently diffusion-tight for the gases in question. So far, evaporation of part of the contents of the refill bags by diffusion of the gases through the sealing part has been accepted as unavoidable Storage time for products prone to evaporation packed in refill bags is limited accordingly.
Der Erfindung liegt die Aufgabe zugrunde, ein Ausgiess- Einschweissteil der eingangs erwähnten Art zu schaffen, das sich preisgünstig herstellen und verarbeiten lässt, wobei die Gefahr eines Verdunstens des Inhaltes eines mit dem Einschweissteil verbundenen Behälterteiles durch das Einschweissteil wenigstens wesentlich herabgesetzt ist.The invention has for its object to provide a pouring welded part of the type mentioned, which is inexpensive to manufacture and process, the risk of evaporation of the contents of a container part connected to the welded part is at least substantially reduced by the welded part.
Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass bei einem Einschweissteil aus einem ersten Kunststoffmaterial zum Verbinden mit einem Behälterteil aus einem zweiten, wenigstens für bestimmte Gase im wesentlichen undurchlässigen Kunststoffmaterial, insbesondere einem Behälterteil aus einem folienartigen Kunststoffmaterial, mit einem aus dem ersten Kunststoffmaterial geformten Basiskörper mit wenigstens einer Anschweissrippe und einer im Basiskörper vorgesehenen Ausgiesspassage, welche eine Verbindung zwischen dem Inneren des Behälterteiles und der Aussenumgebung schafft, wenn der Behälterteil mit dem Einschweissteil verbunden ist, am Basiskörper ein wenigstens für die bestimmten Gase im wesentlichen undurchlässiges, wenigstens die Ausgiesspassage abdichtendes Einlegeteil vorgesehen ist .According to the invention, this object is achieved in that, in the case of a weld-in part made of a first plastic material for connection to a container part made of a second plastic material which is at least essentially impermeable to certain gases, in particular a container part made of a film-like plastic material, with a base body formed from the first plastic material at least one welding rib and a pouring passage provided in the base body, which creates a connection between the inside of the container part and the outside environment when the container part is connected to the weld-in part, on the base body an insert which is at least essentially impermeable to the specific gases and at least seals the pouring passage is.
Damit kann der Basiskörper aus jedem aus fertigungstechnischen oder sonstigen Gründen zu bevorzugenden Kunststoffmaterial gebildet werden, selbst wenn dieses keine ausreichende Diffunsionsdichte für die jeweiligen Gase besitzt. Der Einlegeteil schafft eine Sperrschicht zwischen Behälterinhalt und Einschweissteil, die einen Zutritt der Gase zum nicht diffusionsdichten Einschweissteil verhindert oder zumindest wesentlich einschränkt . Einem Verdunsten des Behälterinhalts durch das Einschweissteil wird daher ein wirksames Mittel entgegengesetzt, ohne dass dadurch die Fertigung von Verpackungen in Gestalt von Nachfüllbeuteln wesentlich erschwert oder in sonstiger Weise verteuert werden würde. Vorzugsweise besteht der Einlegeteil aus im wesentlichen dem gleichen Kunststoffmaterial wie der folienartige Behälterteil und ist ferner so ausgebildet, dass er von einem spitzen Gegenstand durchstossen bzw. abgetrennt werden kann.The base body can thus be formed from any plastic material that is preferable for manufacturing or other reasons, even if it does not have a sufficient diffusion density for the respective gases. The insert creates a barrier layer between the container contents and the weld-in part, which prevents or at least substantially limits access of the gases to the non-diffusion-tight weld-in part. Evaporation of the contents of the container by the weld-in part is therefore prevented effective means, without making the manufacture of packaging in the form of refill bags significantly more difficult or otherwise expensive. The insert part preferably consists of essentially the same plastic material as the film-like container part and is also designed such that it can be pierced or separated by a pointed object.
Die Erfindung wird nachfolgend anhand von Ausführungsformen und der Zeichnung näher erläutert. Es zeigen:The invention is explained in more detail below with the aid of embodiments and the drawing. Show it:
Fig. 1 in Gesamtansicht (linke Hälfte) und längsgeschnittener Ansicht (rechte Hälfte) ein Ausgiess- Einschweissteil gemäss einer Ausführungsform der Erfindung,1 in overall view (left half) and longitudinally sectioned view (right half) a pouring welded part according to an embodiment of the invention,
Fig. 2 das Ausgiess-Einschweissteil nach Fig. 1 in Unteransicht ,2 the pouring-welded part according to FIG. 1 in bottom view,
Fig. 3 in einer Ansicht ähnlich Fig. 1 ein Ausgiess- Einschweissteil gemäss einer weiteren Ausführungform der Erfindung,3 is a view similar to FIG. 1, a pour-in welded part according to a further embodiment of the invention,
Fig. 4 das Ausgiess-Einschweissteil nach Fig. 3 in Unteransicht .Fig. 4, the pouring welded part according to Fig. 3 in bottom view.
Der Ausgiess-Einschweissteil gemäss der ersten in Fig 1 und 2 gezeigten Ausführungsform der Erfindung umfasst einen integral geformten formstabilen Basiskörper 1 aus einem Kunststoffmaterial, der in eine schlitzförmige Öffnung eines (nicht gezeigten) vorgefertigten Behälterteiles eingesetzt und damit permanent durch Schweissen, z.B. Ultraschallschweissen, verbunden werden kann. Bevorzugte Kunststoffmaterialien für den Basiskörper 1 sind aufgrund ihrer problemlosen Verarbeitungsmöglichkeit, z.B. durch Spritzgiessen, Polyolefin-Kunststoffe, wie Polypropylen (PP) , Polyyethylen (PE) , Polyamid (PA) , sowie PVC und Elastomer-Kunststoffe. Während diese Kunststoffmaterialien im allgemeinen für bestimmte Gase, wie 02 , C02 , N2 , nicht oder nicht ausreichend gasdicht sind, indem die Gase durch das Kunststoffmaterial hindurchdiffundieren können, kann der Behälterteil, um ein Verdunsten der Inhaltstoffe zu vermeiden, ohne weiteres aus für die genannten Gase im wesentlichen dichten Materialien, wie folienartige Verbundwerkstoffe auf Basis einer beschichteten Metallfolie, wie einer Aluminiumfolie, mit Beschichtungen aus PP, Polyethylenterephthalat (PETP) , PE oder PA gebildet werden. Die Erfindung ist jedoch auf die vorerwähnten speziellen Kunststoff- und Folienmaterialien nicht beschränkt.The pouring-welded part according to the first embodiment of the invention shown in FIGS. 1 and 2 comprises an integrally formed, dimensionally stable base body 1 made of a plastic material, which is inserted into a slit-shaped opening of a prefabricated container part (not shown) and is thus permanently connected by welding, for example ultrasonic welding can be. Preferred plastic materials for the base body 1 are, due to their problem-free processing possibility, for example by injection molding, polyolefin plastics, such as polypropylene (PP), polyethylene (PE), polyamide (PA), and PVC and elastomer plastics. While these plastic materials are generally not or not sufficiently gas-tight for certain gases, such as 0 2 , C0 2 , N 2 , by the gases being able to diffuse through the plastic material, the container part can easily expand to avoid evaporation of the contents for the gases mentioned, essentially dense materials, such as sheet-like composite materials based on a coated metal sheet, such as an aluminum sheet, are formed with coatings made of PP, polyethylene terephthalate (PETP), PE or PA. However, the invention is not limited to the aforementioned special plastic and film materials.
Obschon die permanente Verbindung zwischen dem Ausgiess- Einschweissteil und Behälterteil im allgemeinen durch Schweissen erfolgt, kann die Verbindung auch durch andere geeignete Verbindungsverfahren, wie Heisssiegeln oder Kleben, aufgebracht werden.Although the permanent connection between the pouring weld-in part and the container part is generally made by welding, the connection can also be applied by other suitable connection methods, such as heat sealing or gluing.
Der Ausgiess-Einschweissteil umfasst gemäss Fig. 1 und 2, die eine erste Ausführungsform der Erfindung zeigen, einen im wesentlichen rohrförmigen Halsbereich 2 mit einer geeigneten axialen Erstreckung. Der Halsbereich 2 und Basiskörper 1 sind von einer Ausgiesspassage 3 axial durchsetzt . Die Ausgiesspassage 3 schafft eine Verbindung zwischen dem Inneren eines (nicht gezeigten) folienartigen Behälterteiles und der Aussenumgebung, wenn der Ausgiess-Einschweissteil mit dem Behälterteil verbunden ist.1 and 2, which show a first embodiment of the invention, the pouring-welded part comprises an essentially tubular neck region 2 with a suitable axial extension. The neck area 2 and base body 1 are axially penetrated by a pouring passage 3. The pouring passage 3 creates a connection between the inside of a film-like container part (not shown) and the outside environment when the pouring-welded part is connected to the container part.
An einem äusseren Umfangsabschnitt nahe einem axialen Ende des Halsbereiches 2 kann ein Gewinde 4 angeformt sein, auf das eine (nicht gezeigte) Schraubverschlusskappe zum Verschliessen der Austrittsöffnung der Ausgiesspassage 3 aufgeschraubt werden kann. Anstelle eines Schraubgewindes 4 könnte auch ein Hintergreifbund am Halsbereich 2 vorgesehen sein, um eine Verschlusskappe durch Aufprellen am Ausgiess- Einschweissteil zu befestigen.At an outer peripheral portion near an axial end A thread 4 can be formed on the neck area 2, onto which a screw cap (not shown) for closing the outlet opening of the pouring passage 3 can be screwed. Instead of a screw thread 4, a rear gripping collar could also be provided on the neck area 2 in order to fasten a closure cap by bouncing it onto the pouring-welded part.
Längs eines Abschnittes des Basiskörpers 1 nahe dem der Eintrittsöffnung der Ausgiesspassage 3 zugewandten axialen Ende sind ein oder mehrere, bei der vorliegenden Ausführungsform vier, Anschweissrippen 5 für das Folienmaterial des Behälterteils vorgesehen, die in einem geeigneten axialen Abstand voneinander stehen und sich in parallelen radialen Ebenen zur Mittellängsachse des Einschweissteiles erstrecken. Wenn erwünscht, können die Anschweissrippen 5 eine Ausbildung gemäss der EP-A-773893 haben, auf die daher bezüglich weiterer Details Bezug genommen werden kann.Along a section of the base body 1 near the axial end facing the inlet opening of the pouring passage 3, one or more, in the present embodiment four, welding ribs 5 are provided for the film material of the container part, which are at a suitable axial distance from one another and are located in parallel radial planes extend to the central longitudinal axis of the welded-in part. If desired, the welding ribs 5 can have a design according to EP-A-773893, to which reference can therefore be made for further details.
Jede Anschweissrippe 4 kann, wie Fig. 2 zeigt, aus einem Paar in Bezug auf die Ausgiesspassage 3 diametral gegenüberliegenden, bei Draufsicht nach aussen sich verjüngenden Abschnitten A, B zusammengesetzt sein, die einen kontinuierlichen kerbeffektminimierenden Übergang für das anzuschweissende Folienmaterial des Behälterteiles schaffen.As shown in FIG. 2, each welding rib 4 can be composed of a pair of diametrically opposite sections A, B with respect to the pouring passage 3, which taper towards the outside when viewed from above, which create a continuous notch-minimizing transition for the film material of the container part to be welded on.
In einer axialen Mittelebene kann sich radial von diametralen Stellen des Halsbereiches 2 eine Trennwand 6 nach aussen erstrecken, die mittig die Abschnitte A, B jeder Anschweissrippe 5 durchsetzt. Die Trennwand 6 bildet eine Stützwand zwischen benachbarten Anschweissrippen 5, so dass diese die vorgegebene radiale und axiale Lage in Bezug auf den Basiskörper 1 unter den beim Schweissen oder der späteren Verwendung auftretenden Beanspruchungen beibehalten. Infolge der stabilisierenden Wirkung der Trennwand 6 kann die Dicke der Anschweissrippen 5 auf eine optimale Abfuhr von Wärme aus der Schweisszone dimensioniert werden. Wenn erwünscht, kann die Trennwand 6 radial über die radialen äusseren Enden der Anschweissrippen 5 um ein geeignetes Mass hinausragen.In an axial central plane, a dividing wall 6 can extend radially outward from diametrical points of the neck region 2 and passes through the sections A, B of each welding rib 5 in the center. The partition wall 6 forms a supporting wall between adjacent welding ribs 5, so that the predetermined radial and axial position with respect to the base body 1 is less than that during welding or later Maintain use occurring stresses. As a result of the stabilizing effect of the dividing wall 6, the thickness of the welding fins 5 can be dimensioned for optimal dissipation of heat from the welding zone. If desired, the partition 6 can protrude radially beyond the radial outer ends of the welding ribs 5 by a suitable amount.
Im Basiskörper 1 ist ferner seitens des Endes, das dem anzuschweissenden Behälterteil am nächsten liegt, eine kreisförmige Ausnehmung 7 eingebracht, die die Eintrittsöffnung der Ausgiesspassage 3 konzentrisch umgibt. Die Ausnehmung 7 dient zur Aufnahme eines Einlegeteiles 8 aus einem geeigneten, für die in Frage kommenden Gase im wesentlichen dichten Material, wie dies in Fig. 2 gezeigt ist. Der Einlegeteil 8 dichtet die Ausgiesspassage 3 seitens ihres Eintrittsendes ab, so dass ein wesentlicher Teil des Basiskörpers 1 gegenüber dem Inhalt des Behälterteiles praktisch abgeschirmt ist und damit ein Hindurchdiffundieren von Gasen durch den Basiskörper 1 vermieden wird.In the base body 1, a circular recess 7 is also made on the side of the end that is closest to the container part to be welded on, which concentrically surrounds the inlet opening of the pouring passage 3. The recess 7 serves to receive an insert 8 made of a suitable material which is essentially impermeable to the gases in question, as shown in FIG. 2. The insert part 8 seals the pouring passage 3 from the end of its entry, so that a substantial part of the base body 1 is practically shielded from the contents of the container part and thus gas diffusion through the base body 1 is avoided.
Der Einlegeteil 8 kann aus einem Kunststoffmaterial mit gasdichter Eigenschaft oder aus einem kunststoffbeschichteten geeigneten metallischen Folienmaterial bestehen. Geeignete Materialen sind insbesondere folienartige Verbundwerkstoffe auf Basis einer beschichteten Metallfolie, wie einer Aluminiumfolie, mit Beschichtungen aus PP, Polyethylenterephthalat (PETP) , PE oder PA. Vorzugsweise wird für den Einlegeteil 8 ein gleiches oder annäherend gleiches gasdichtes Folienmaterial wie dasjenige verwendet, aus dem der Behälterteil gebildet ist.The insert part 8 can consist of a plastic material with a gas-tight property or of a plastic-coated suitable metallic foil material. Suitable materials are, in particular, film-like composite materials based on a coated metal foil, such as an aluminum foil, with coatings made of PP, polyethylene terephthalate (PETP), PE or PA. The same or approximately the same gas-tight film material as that from which the container part is formed is preferably used for the insert part 8.
Der Einlegeteil 8 kann durch Schweissen, Kleben oder in anderer geeigneter Weise gas- und flüssigkeitsdicht mit dem Basiskörper 1 verbunden werden und eine Struktur haben, dass mittels eines spitzen Gegenstandes, z.B. mittels eines an einer Verschlusskappe angeformten Dornes, eine Öffnung in den Einlegeteil 8 eingebracht werden kann, um bei Gebrauch eine Verbindung zwischen dem Innern eines am Ausgiess- Einschweissteil angeschweissten Behälterteiles und der Aussenumgebung herzustellen.The insert part 8 can be connected to the base body 1 in a gas- and liquid-tight manner by welding, gluing or in another suitable manner and have a structure that by means of a pointed object, for example by means of a mandrel molded onto a closure cap, an opening can be made in the insert part 8 in order to establish a connection between the inside of a container part welded to the pouring-welded part and the outside environment.
Eine weitere Ausführungsform der Erfindung ist in Fig. 3 und 4 gezeigt . Diese unterscheidet sich von der vorbeschriebenen Ausführungsform im wesentlichen nur in einer vergrösserten Ausbildung des gasdichten Einlegeteiles 8 ' . Insbesondere überdeckt der Einlegeteil 8 ' nicht nur die Eintrittsöffnung der Ausgiesspassage 3, sondern darüber hinaus im wesentlichen die gesamte dem anzuschweissenden Behälterteil zugewandte Oberfläche des Einschweissteiles, d.h. einschliesslich der Oberfläche der benachbarten Anschweissrippe 6, wodurch einem eventuellen Gasaustritt durch andere Bereiche des Basiskörper 1 als diejenigen, dien umfänglich der Eintrittsöffnung der Ausgiesspassage 3 liegen, wirksam entgegengetreten wird. Die den Einlegeteil 8 ' auf ehmende Ausnehmung 7 ' im Basiskörper 1 ist deshalb nicht nur umfänglich der Eintrittsöffnung der Ausgiesspassage 3, sondern auch entsprechend der vergrösserten Konfiguration des Einlegeteiles in der Unterseite der Anschweissrippe 6 eingebracht . Im übrigen kann bezüglich weiterer Details auf die Beschreibung der vorerwähnten Ausführungsform Bezug genommen werden.Another embodiment of the invention is shown in FIGS. 3 and 4. This differs from the previously described embodiment essentially only in an enlarged design of the gas-tight insert 8 '. In particular, the insert part 8 'not only covers the inlet opening of the pouring passage 3, but also essentially the entire surface of the welded part facing the container part to be welded, i.e. including the surface of the adjacent welding rib 6, which effectively counteracts any gas leakage through areas of the base body 1 other than those which lie circumferentially around the inlet opening of the pouring passage 3. The recess 8 'on the recess 7' in the base body 1 is therefore not only introduced circumferentially around the inlet opening of the pouring passage 3, but also in accordance with the enlarged configuration of the insert part in the underside of the welding rib 6. Incidentally, reference may be made to the description of the aforementioned embodiment for further details.
Es versteht sich, dass sich anhand der gegebenen Lehre dem Fachmann anbietende Modifikationen oder Kombinationen von Merkmalen der vorbeschriebenen Ausführungsformen als zur Erfindung gehörend anzusehen sind. Es wurde bei den vorbeschriebenen Ausführungsformen unterstellt, dass es sich bei den Gasen um solche handelt, die aus den Inhaltstoffen des Behälterteiles nach aussen diffundieren können. Die Erfindung wäre erfolgreich auch bei Fällen anwendbar, bei denen vermieden werden muss, dass Gase, z.B. Luft, durch den Basiskörper von aussen ins Innere des Behälterteiles diffundieren. It goes without saying that, based on the teaching given, modifications or combinations of features of the above-described embodiments that are available to the person skilled in the art are to be regarded as belonging to the invention. It was assumed in the above-described embodiments that the gases are those which can diffuse outward from the contents of the container part. The The invention would also be successfully applicable in cases in which it must be avoided that gases, for example air, diffuse through the base body from the outside into the interior of the container part.

Claims

Patentansprüche claims
1. Ausgiess-Einschweissteil aus einem ersten Kunststoffmaterial zum Verbinden mit einem Behälterteil aus einem zweiten, wenigstens für bestimmte Gase im wesentlichen undurchlässigen Kunststoffmaterial, insbesondere einem Behälterteil aus einem folienartigen Kunststoffmaterial , mit einem aus dem ersten Kunststoffmaterial geformten Basiskörper mit wenigstens einer Anschweissrippe und einer im Basiskörper vorgesehenen Ausgiesspassage, welche eine Verbindung zwischen dem Inneren des Behälterteiles und der Aussenumgebung schafft, wenn der Behälterteil mit dem Einschweissteil verbunden ist, dadurch gekennzeichnet, dass am Basiskörper1.Pouring-in welded part made of a first plastic material for connection to a container part made of a second plastic material, at least essentially impermeable to certain gases, in particular a container part made of a film-like plastic material, with a base body formed from the first plastic material with at least one welding rib and one in Base body provided pouring passage, which creates a connection between the inside of the container part and the outside environment when the container part is connected to the weld-in part, characterized in that on the base body
(1) ein wenigstens für die bestimmten Gase im wesentlichen undurchlässiges, wenigstens die Ausgiesspassage (3) abdichtendes Einlegeteil (8) vorgesehen ist.(1) an insert (8) which is at least substantially impermeable to the specific gases and at least seals the pouring passage (3) is provided.
2. Ausgiess-Einschweissteil nach Anspruch 1, dadurch gekennzeichnet, dass der Einlegeteil (8) aus im wesentlichen dem zweiten Kunststoffmaterial gebildet ist.2. pouring-welded part according to claim 1, characterized in that the insert part (8) is formed from essentially the second plastic material.
3. Ausgiess-Einschweissteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Einlegeteil (8) eine von einem spitzen Gegenstand durchtrennbare Struktur hat.3. pouring-welded part according to claim 1 or 2, characterized in that the insert part (8) has a structure which can be severed by a pointed object.
4. Ausgiess-Einschweissteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Einlegeteil (8) am Basiskörper (1) angeschweisst ist.4. pouring-welded part according to one of claims 1 to 3, characterized in that the insert part (8) is welded to the base body (1).
5. Ausgiess-Einschweissteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Einlegeteil (8) am Basiskörper (1) angeklebt ist. 5. pouring-welded part according to one of claims 1 to 3, characterized in that the insert part (8) on the base body (1) is glued.
6. Ausgiess-Einschweissteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Einlegeteil (8) am Basiskörper (1) nahe der Eintrittsöffnung der Ausgiesspassage (3) vorgesehen ist und diese überdeckt.6. pouring-welded part according to one of the preceding claims, characterized in that the insert part (8) is provided on the base body (1) near the inlet opening of the pouring passage (3) and covers it.
7. Ausgiess-Einschweissteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Basiskörper (1) aus einem Kunststoffmaterial aus der Gruppe der PE, PVC, Elastomere umfassenden Materialien besteht, und dass der Einlegeteil (8) aus einem Verbundmaterial auf Basis eines gasdichten metallischen Folienmaterials besteht.7. pouring-welded part according to one of the preceding claims, characterized in that the base body (1) consists of a plastic material from the group of PE, PVC, elastomeric materials, and that the insert part (8) made of a composite material based on a gas-tight metallic foil material.
8. Ausgiess-Einschweissteil nach Anspruch 7, dadurch gekennzeichnet, dass das Verbundmaterial eine Beschichtung aus einem Kunststoffmaterial aus der Gruppe der PP, PETP, PE, PA umfassenden Materialien aufweist . 8. pouring-welded part according to claim 7, characterized in that the composite material has a coating of a plastic material from the group of PP, PETP, PE, PA comprising materials.
PCT/EP1998/002007 1997-04-07 1998-04-07 Plastic soldered pouring spout part for a refillable container WO1998045188A1 (en)

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AU75227/98A AU7522798A (en) 1997-04-07 1998-04-07 Plastic soldered pouring spout part for a refillable container

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DE29706159U DE29706159U1 (en) 1997-04-07 1997-04-07 Pour-in welded part

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WO2002057157A1 (en) 2001-01-18 2002-07-25 Georg Menshen Gmbh & Co. Kg Moulded pouring part for connecting to a container part
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WO2003090843A1 (en) * 2002-04-26 2003-11-06 Millipore Corporation Disposable, sterile fluid transfer device
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WO2006032326A1 (en) * 2004-09-23 2006-03-30 Georg Menshen Gmbh & Co. Kg Neck of a container, in particular a sachet
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US10247312B2 (en) 2007-11-16 2019-04-02 Emd Millipore Corporation Fluid transfer device
US9028779B2 (en) 2008-12-18 2015-05-12 Emd Millipore Corporation Device for the transfer of a medium
US9120585B2 (en) 2008-12-18 2015-09-01 Emd Millipore Corporation Device for the transfer of a medium
US9150825B2 (en) 2008-12-18 2015-10-06 Emd Millipore Corporation Device for the transfer of a medium
US9279100B2 (en) 2008-12-18 2016-03-08 Emd Millipore Corporation Device for the transfer of a medium
US9296983B2 (en) 2008-12-18 2016-03-29 Emd Millipore Corporation Device for the transfer of a medium
US8539988B2 (en) 2008-12-18 2013-09-24 Emd Millipore Corporation Device for the transfer of a medium
US8919365B2 (en) 2009-10-30 2014-12-30 Emd Millipore Corporation Fluid transfer device and system
US8544497B2 (en) 2009-10-30 2013-10-01 Emd Millipore Corporation Fluid transfer device and system
US8915264B2 (en) 2009-10-30 2014-12-23 Emd Millipore Corporation Fluid transfer device and system
US10486880B2 (en) 2015-09-30 2019-11-26 Dow Global Technologies, Llc Fitment with ethylene/α-olefin multi-block copolymer
CN110545988A (en) * 2017-03-24 2019-12-06 费森尤斯卡比德国有限公司 Pulse welding method and welding tool for pulse welding medical packages designed as pouches
CN110545988B (en) * 2017-03-24 2023-05-05 费森尤斯卡比德国有限公司 Pulse welding method and tool for pulse welding medical packaging designed as bag

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AU7522798A (en) 1998-10-30
DE29706159U1 (en) 1997-07-03

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