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EP0109055B1 - Tube d'emballage - Google Patents

Tube d'emballage Download PDF

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Publication number
EP0109055B1
EP0109055B1 EP83111230A EP83111230A EP0109055B1 EP 0109055 B1 EP0109055 B1 EP 0109055B1 EP 83111230 A EP83111230 A EP 83111230A EP 83111230 A EP83111230 A EP 83111230A EP 0109055 B1 EP0109055 B1 EP 0109055B1
Authority
EP
European Patent Office
Prior art keywords
tube
connecting member
packaging tube
film
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83111230A
Other languages
German (de)
English (en)
Other versions
EP0109055A3 (en
EP0109055A2 (fr
Inventor
Engelbert Sander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automation Industrielle SA
Original Assignee
Automation Industrielle SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automation Industrielle SA filed Critical Automation Industrielle SA
Publication of EP0109055A2 publication Critical patent/EP0109055A2/fr
Publication of EP0109055A3 publication Critical patent/EP0109055A3/de
Application granted granted Critical
Publication of EP0109055B1 publication Critical patent/EP0109055B1/fr
Expired legal-status Critical Current

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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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/12—Connections between body and closure-receiving bush

Definitions

  • the invention relates to a packaging tube, consisting of a tube tube made of a multilayer composite film with at least one thermoplastic plastic layer and with a metallic barrier layer, a prefabricated plastic and a removal opening and an external thread or an external closure means and a connecting body consisting of a Metal layer and at least one outer thermoplastic plastic layer-containing composite film on which the head piece is placed and welded to it by means of the plastic layer, the circumferential edge of the tube tube overlapping or overlapping the outer edge of the connecting body and their superimposed plastic layers by inductive generation of heat in the metal of the composite film softened and welded together under pressure.
  • Such a tube is known from FIG. 3 and the associated description of DE-OS-26 28 014.
  • the peripheral edge of the tubular body made of a laminate with a metallic barrier layer overlaps the outer edge of a connecting body with a metallic barrier layer.
  • the connecting body has a relatively large cylindrical neck part, on which a tube head made of polyethylene is arranged.
  • the neck part engages in an annular groove in the tube head, through which the tube head is divided inwards into a sleeve and outwards into a collar. Because of the relatively long length of the neck part of the connecting body, the latter is produced in the winding process, the development being punched out of a laminate and the edges then being connected to form a ring by means of an overlap seam.
  • the connecting body produced in this way is then intended to be connected to the head by means of frictional heat before the connection is made to the tube.
  • the object of the invention is to improve a tube of the type mentioned in such a way that, with approximately the same or improved sealing and absorption properties, the individual parts can be manufactured more easily and can be firmly connected to one another in a single operation to form the finished tube.
  • the tube should also be able to be equipped with a membrane in the removal opening.
  • the head piece Due to the cylindrical or frustoconical design of the head piece, its manufacture is simple and requires little plastic material, so that the head piece is easier and cheaper to produce. Characterized in that the entire base surface is connected to the connecting body, there is a relatively large and thus permanent and firm connection of the two parts. This connection is improved in that the connecting body is inserted at an angle into an extension of the removal opening and is also firmly connected to the wall thereof. Furthermore, the plastic material of its layers is inserted into the recess in the extension, so that a kind of clamp - possibly a pin connection - is created, which has grown the strongest loads. The extension ensures a smooth transition between the neck of the connecting body and the wall of the removal opening.
  • the connecting body is advantageous to produce as an annular profile disk and, if a membrane is required, as a profile cover, both of which are preferably formed by deep drawing.
  • the plastic layers are thinned out, the removed material being able to be fed into a larger recess.
  • the conical widening creates an insertion funnel for the removal opening, which ensures good pressure distribution in the head area when the tube contents are pressed out, since the parts that are welded together are pressed against one another.
  • the depression is preferably to be made in the form of a ring groove which is easy to produce and is further preferably to be made in a wider sense approximately perpendicular to the longitudinal axis of the head in order to achieve a clamp effect.
  • the tube has a very large diameter, it may be advantageous to enlarge the contact area of the head on the connecting body, which is indicated by an annular Approach can be easily accomplished.
  • the connecting body can only have two layers, which saves material.
  • the second plastic layer can consist of a relatively permeable or a relatively impermeable material. In the latter case, the absorption capacity in the head area can be reduced further.
  • the invention provides a tube that is much easier and cheaper to manufacture than the tube according to the prior art.
  • a tube with an annular connecting body has approximately the same diffusion resistance as the known tube, a tube with a profile cover, i. H. with a membrane has a higher diffusion resistance than the known tube, since the removal opening is also covered by a metal layer.
  • the layer of the connecting body facing the tube content can be made of an impermeable but also difficult to fuse with other plastics material, whereby the absorbency in the shoulder area and in Tube head lowered when using an annular profile disc and almost completely when using a profile cover - until the membrane is pierced, d. H. during the entire storage period - is excluded.
  • a packaging tube according to the invention contains a tube tube 1 made of a composite film in the form of a three-layer laminate film.
  • a central aluminum layer 2 is connected on both sides with thermoplastic layers 3, 3 'as outer layers, the z. B. may consist of polyethylene or polypropylene.
  • the packaging tube made of a thermoplastic also contains a prefabricated head piece 4 with a central removal opening 5.
  • the head piece 4 is shown as a cylinder.
  • the removal opening 5 is cylindrical, but can also taper.
  • the head piece 4 has an external thread 7 for screwing on a closure cap, not shown.
  • an annular extension 10 can be provided at its lower end.
  • the approach 10 can also be designed as a stop surface for the closure cap.
  • the removal opening has a step-like extension 11.
  • the step can be designed obliquely and undercut (Fig. 1 and 2) or straight (Fig. 3 and 4).
  • the enlargement is cylindrical or preferably conically expanding.
  • an annular groove 12 which preferably adjoins the step, is embodied.
  • the groove 12 preferably has at least one undercut edge.
  • the connecting body 8 is designed as an annular profile disk.
  • the conical main part 13 opens at the tapered end into an upwardly angled neck 14 and at the enlarged end into a downwardly angled outer edge 15.
  • the neck 14 and the extension 11 are designed in dependence on one another so that the neck 14 in the extension 11 such incoming that after the connection a positive transition in the removal opening 5 between the neck 14 and the head piece 4 is secured.
  • the upper cut edge of the neck 14 abuts the undercut step.
  • the outer edge 15 is angled in such a way that the inwardly bent peripheral edge 16 of the tube 1 is gripped under (as shown) or overlapped (not shown).
  • the connecting body 8 according to the embodiment shown in FIGS. 3 and 4 is designed as a profile cover.
  • the profile cover is constructed and designed similar to the ring-shaped profile disk, only the central opening is the Washer, the diameter of which is equal to or approximates that of the removal opening 5, closed.
  • This part of the connecting body covering the opening serves as a membrane 17 which, if the tube is to be emptied, first has to be pierced. For different tube contents, e.g. B. in food, a membrane 17 is prescribed.
  • the stage of expansion can be straight, i.e. H. perpendicular to the longitudinal axis of the head piece 4 and / or the groove 12 can be made enlarged.
  • the connecting bodies 8 are preferably produced by deep drawing as a profile cover; if they are used as a profile disc, only the membrane 17 is cut or punched out, which can be carried out in the same machine without any effort.
  • the connecting body 8 can be made in two layers (not shown) with an upper thermoplastic layer 3 on the aluminum layer 2 or three layers with one thermoplastic layer 3, 3 'on and under the aluminum layer 2.
  • the lower plastic layer 3 'can consist of a relatively impermeable material. This layer then does not need to be easily fused with the plastic material of the tube head 4 or tube tube 1, since it is possible to make both connections through the upper outer plastic layer 3 arranged on the aluminum layer 2.
  • the plastic layer 3 arranged on the aluminum layer 2 of the connecting body 8 should be easy to fuse with the material of the tube head 4 and the material of the inner plastic layer 3 'of the tube tube 1. Due to the possibility of being able to carry out the connection solely by means of the upper plastic layer of the connecting body, this can also be configured in two layers, as indicated above, and specifically when the intended tube content is not changed by direct contact with the then exposed aluminum layer 2.
  • the head piece 4 with its extension 11 is pushed onto the neck 14 of the connecting piece until the base surface 9 of the head piece 4 rests on the main part 13 of the connecting body 8, after which the tubular body 1 with its peripheral edge 16 the outer edge 15 of the Connecting body 8 is supplied under or overlapping. Then z. B. heated by high frequency induction, in particular the aluminum layer 2 in the connecting body 8 and in the edge region of the tube 1, whereby the adjacent plastic layers 3, 3 'are softened and melted.
  • the simultaneous pressurization ensures the firm connection of all tube parts to one another, the softened plastic being distributed such that the groove 12 or other and further depressions as well as the gaps 18, 18 'and a possible gap 19 in the joint area between the head piece 4 and Neck 14 can be filled in the removal opening 5 (see FIGS. 2 and 4).
  • a firm locking of the connecting body 8 on the head piece 4 is achieved in addition to the adhesive connection also achieved by means of plastic softening on the contact surfaces of the head piece 4 with the connecting body 8.
  • By filling the gaps 18, 18 ', 19, a uniform, beautiful surface is achieved.
  • a membrane 17 its softened plastic layer (s) 3, 3 'are pressed from the center to the edge into the then enlarged groove 12, so that the plastic layer (s) on or below the metal layer 2 in the region of the removal opening 5 be significantly thinned out, which on the one hand more material is available for the locking connection and on the other hand also facilitates piercing the membrane 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)

Claims (10)

1. Tube d'emballage comprenant une enveloppe tubulaire (1) en une feuille composite à plusieurs couches comprenant au moins une couche de matière thermoplastique et une couche métallique de confinement (2), un capuchon préfabriqué (4) consistant en une matière plastique, doté d'un orifice de prélèvement (5) et d'un filetage externe (7) ou d'un moyen d'obturation extérieur, ainsi qu'un corps de liaison (8) qui est constitué d'une feuille composite comprenant une couche métallique (2) et au moins une couche externe en une matière thermoplastique (3, 3'), sur lequel le capuchon (4) est placé et avec lequel ce capuchon est solidarisé par soudage au moyen de la couche en matière plastique (3), le bord périphérique (16) de l'enveloppe tubulaire (1) chevauchant le bord externe (15) du corps de liaison (8), en l'emprisonnant par-dessous ou pardessus, et ses couches de matière plastique superposées (3, 3') étant ramollies par induction de chaleur dans le métal de la feuille composite, puis solidarisées par soudage en exerçant une pression, caractérisé par le fait que le capuchon (4) est de réalisation cylindrique ou tronconique et est intégralement relié par sa surface de base (9) au corps de liaison (8) ; par le fait que l'orifice de prélèvement (5) comporte, à l'extrémité inférieure, un évasement (11) dans lequel est pratiqué au moins un renfoncement (12) ; par le fait que le corps de liaison (8) possède un col (14) adapté à la forme de l'évasement (11) ; et par le fait que la matière plastique du corps de liaison (8) est insérée dans le renfoncement.
2. Tube d'emballage selon la revendication 1, caractérisé par le fait que le corps de liaison (8) est un disque annulaire profilé.
3. Tube d'emballage selon la revendication 1, caractérisé par le fait que le corps de liaison (8) est un couvercle profilé présentant une membrane intégrée (17).
4. Tube d'emballage selon la revendication 2 ou 3, caractérisé par le fait que le corps de liaison (8) est venu d'emboutissage profond.
5. Tube d'emballage selon la revendication 3 ou les revendications 3 et 4 prises ensemble, caractérisé par le fait que la. ou les couches de matière plastique de la membrane (17) du couvercle profilé sont amincies.
6. Tube d'emballage selon l'une des revendications 1 à 5, caractérisé par le fait que l'évasement (11) est réalisé avec élargissement conique en direction du tube.
7. Tube d'emballage selon l'une des revendications 1 à 6, caractérisé par le fait que le renfoncement consiste en au moins une gorge annulaire (12) s'étendant sensiblement perpendiculairement à l'axe longitudinal (6) du capuchon.
8. Tube d'emballage selon l'une des revendications 1 à 7, caractérisé par le fait que la tête (4) de ce tube présente, à l'extrémité inférieure, un appendice annulaire (10) dirigé vers l'extérieur.
9. Tube d'emballage selon la revendication 8, caractérisé par le fait que le corps de liaison (8) comporte, en plus, une couche inférieure de matière plastique consistant en une matière plastique aisément soudable ou relativement opaque.
10. Tube d'emballage selon l'une des revendications 1 à 9, caractérisé par le fait que le capuchon (4), le corps de liaison (8) et l'enveloppe tubulaire (1) sont solidarisés simultanément par soudage, en une passe de travail.
EP83111230A 1982-11-12 1983-11-10 Tube d'emballage Expired EP0109055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8231867U 1982-11-12
DE8231867U DE8231867U1 (de) 1982-11-12 1982-11-12 Verpackungstube

Publications (3)

Publication Number Publication Date
EP0109055A2 EP0109055A2 (fr) 1984-05-23
EP0109055A3 EP0109055A3 (en) 1985-05-15
EP0109055B1 true EP0109055B1 (fr) 1987-03-04

Family

ID=6745526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111230A Expired EP0109055B1 (fr) 1982-11-12 1983-11-10 Tube d'emballage

Country Status (2)

Country Link
EP (1) EP0109055B1 (fr)
DE (2) DE8231867U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502674C2 (sv) * 1994-04-13 1995-12-04 Abba Seafood Ab Hermetisk tillsluten förpackningstub
DE102004043040B4 (de) * 2004-09-06 2012-05-10 Kunststoffwerk Kutterer Gmbh & Co. Kg Verschlusseinrichtung für Tuben und Tube
EP1657174A1 (fr) * 2004-11-15 2006-05-17 Sika Technology AG Récipient en forme de tube
FR3012349B1 (fr) 2013-10-29 2020-07-31 Albea Services Tete de tube comprenant un insert formant barriere

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260411A (en) * 1964-07-13 1966-07-12 American Can Co Collapsible container structure
JPS583902B2 (ja) * 1975-06-27 1983-01-24 カ−ル・メ−ゲルレ 包装用チユ−ブ
CH652966A5 (de) * 1981-05-07 1985-12-13 Maegerle Karl Lizenz Verfahren zur herstellung eines verpackungsbehaelters und nach diesem hergestellter tubenfoermiger behaelter.

Also Published As

Publication number Publication date
EP0109055A3 (en) 1985-05-15
EP0109055A2 (fr) 1984-05-23
DE3369951D1 (en) 1987-04-09
DE8231867U1 (de) 1983-03-17

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