EP1322523B1 - Dispositif de fermeture en plastique dote d'un perforateur - Google Patents

Dispositif de fermeture en plastique dote d'un perforateur Download PDF

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Publication number
EP1322523B1
EP1322523B1 EP01966937A EP01966937A EP1322523B1 EP 1322523 B1 EP1322523 B1 EP 1322523B1 EP 01966937 A EP01966937 A EP 01966937A EP 01966937 A EP01966937 A EP 01966937A EP 1322523 B1 EP1322523 B1 EP 1322523B1
Authority
EP
European Patent Office
Prior art keywords
closure device
piercing member
screw cap
container
lower portion
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 - Lifetime
Application number
EP01966937A
Other languages
German (de)
English (en)
Other versions
EP1322523A1 (fr
Inventor
Werner Fritz Dubach
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.)
Bericap Holding GmbH
Original Assignee
Bericap Holding GmbH
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
Priority claimed from CH19392000A external-priority patent/CH695019A5/de
Application filed by Bericap Holding GmbH filed Critical Bericap Holding GmbH
Publication of EP1322523A1 publication Critical patent/EP1322523A1/fr
Application granted granted Critical
Publication of EP1322523B1 publication Critical patent/EP1322523B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening

Definitions

  • the present invention relates to an attachable over a puncture site of a closed container closure device made of plastic, according to the preamble of claim 1.
  • a film or membrane or the packaging wall itself must be pounded before the liquid medium can be removed from the container.
  • Such containers are, for example, so-called soft packaging made of single or multi-layer films or coated cardboard on which a closing device is glued or welded, wherein the closing device comprises a screw cap.
  • Closing devices for such packages have a lower part, which has a cylindrical spout with external thread and a lower edge flange for attachment to the soft pack.
  • the screw cap Before the contents can be removed from said soft pack, on the one hand the screw cap must be unscrewed from the lower part and on the other hand, the container wall to be severed in the region of the spout.
  • the closure device has an integrated piercing for cutting through the container wall in the region of the container opening.
  • the destroyed container wall which is firmly adhered to the piercing, on the one hand repeatedly with the contents of the container in contact and on the other hand it is conveyed to the outside again at each opening and can be contaminated multiple times and residual liquid adhering thereto may also be contaminated or oxidized, and thereafter reconnected to the contents when the screw cap is closed.
  • soft packagings in the area which is to be pierced must have a pre-punched desired opening point.
  • a desired opening point is achieved by an embossing punching, in which the film or the film composite is only partially punched, without achieving a separation, so that the piercer with less effort allows complete transection.
  • This is a very delicate punching and accordingly are relatively often the punching too low, whereupon the force required to produce the piercer is very large.
  • FIG. 1 a closure device, which is generally designated 1 and is shown here in a diametrical vertical section.
  • the position shown here shows the closure device 1, which is mounted on a container B.
  • the container is here a soft packaging, which is made of a film or a multi-layer film F.
  • Under soft packaging means containers which are made of a coated cardboard or a laminate film and have a desired opening point S, which by a corresponding Punching P is predetermined. In such embossing punching certain layers of the film F are severed, while the innermost layers or layer remains intact.
  • the device can also be used in soft packaging in which a corresponding opening is already stamped. While in the first variant to be described lower part 2 on the film F outside welded or glued, the attachment is carried out in the second variant either by a weld or gluing on the outside or inside, in the latter case, the lower part 2 the already existing opening interspersed. In the latter two variants, a corresponding membrane is then provided, which is to be pierced.
  • the device can also be realized in such a way that the lower part 2 forms an integral part of the container.
  • the lower part 2 thus corresponds to a correspondingly designed container neck.
  • FIGS. 1 to 4 represent the three main components according to an exploded view.
  • the lower part 2 is in detail in the FIG. 2 shown.
  • the lower part 2 has the shape of a bung. It consists of a flange 21, the bottom or surface of which forms a welding or adhesive surface 22. By means of the flange 21 thus takes place the connection of the closure device 1 with the container B.
  • the flange 21 is integrally formed integrally formed on the lower edge of the cylindrical spout 20.
  • the cylindrical spout 20 has a coarse, multi-start internal thread 24 with a relatively low thread pitch.
  • the cross section of the threads is preferably trapezoidal in shape. In this case, the upper flank of the threads in the installation position is inclined, while the lower flank protrudes radially inwards at right angles from the cylindrical wall of the pouring spout 20.
  • the spout 20 has on its cylindrical shell wall on the outside an external thread 23. While in the embodiment according to the FIG. 1 this external thread extends virtually over the entire height of the spout 20 and has a common thread, is in the FIG. 2 a preferred embodiment shown, in which the external thread 23 is disposed only in the lower region and is designed as a fine thread. Such a fine thread not only saves material, but also has the advantage that. In turn during assembly no exact angular position positioning is required.
  • the fine thread selected here can be chosen because, in contrast to solutions of the prior art, the axially occurring forces in the operation of the piercing need not be absorbed by the screw cap 4.
  • an annular stop bead 25 is integrally formed on the spout 20 below.
  • This stop bead 25 absorbs the forces which act on the lower part 1 when the screw cap 4 is pressed on.
  • the screw cap 4 can thus be pressed down directly to the stop on the stop bead 25.
  • the stop bead 25 may additionally comprise non-illustrated positive locking means which can cooperate with a tamper-evident band on the screw cap 4.
  • One Such warranty strip is not the subject of the invention and omitted accordingly in the drawing to the discharge.
  • the piercer 3 has the shape of a cylindrical piece of pipe.
  • This pipe section is formed by a cylindrical wall 30 which is provided with an external thread 31, whose design is adapted to the internal thread 24 of the lower part 2 accordingly.
  • This external thread 31 in turn has a relatively low thread pitch.
  • the threads of the again multi-threaded thread 31 also have a trapezoidal cross-section.
  • the upper edge 35 very steep respectively at least approximately perpendicular to the cylindrical wall 30 extending.
  • the lower in the installed state thread flute 36 is relatively strongly inclined.
  • the lower edge of the piercer 3 is designed as a cutting edge 32. Accordingly, the cylindrical wall 30 is inclined from the outside inwardly inclined and forms a sharp-edged cutting edge. At the cutting edge 32 perforation teeth 33 are additionally formed .
  • the cylindrical wall 30 has on its inner surface at least one driver 34 projecting toward the center. Depending on the design, however, one will attach two or four such drivers 34. In the embodiment according to the FIG. 3 These drivers 34 are designed as cams, which have an approximately rectangular cross-section. However, the drivers 34 can also be configured as continuous ribs extending in the axial direction.
  • the lower part 2 and the piercer 3 can be manufactured in one piece in the vertical direction so as to be axially aligned with one another, wherein they are connected to one another via a plurality of predetermined breaking webs. In this way, the assembly can be done very easily by only the two parts are pressed into each other. An alignment of the two parts successive deleted because they are already made in the production of each other correctly in the correct angular position to each other.
  • the screw cap 4 is in the FIG. 4 shown. It consists of the top surface 40 and the peripheral casing wall 41. On the inner surface of the casing wall 41, the internal thread 42 is formed, which cooperates with the external thread 23 on the spout 20. Accordingly, this thread is also designed as a fine thread.
  • Centric on the top surface 40 formed is an annular wall 43. This is dimensioned so that it takes place with a certain gap in the interior of the piercer 3.
  • the annular wall 43 has no sealing function, but essentially serves to drive the penetrator 3. Accordingly, the annular wall 43 has positive locking means which can cooperate with the drivers 34 on the inner wall of the cylindrical wall 30.
  • These positive locking means may on the one hand be a driving groove 44 in which the driver 34 is able to slide, or the interlocking means may be designed as a driving rib 45.
  • the driver rib 45 is located on the side of the driver 34 during actuation. Accordingly, the driver 34, as already mentioned, be designed either as a cam or as a longitudinal rib.
  • the positive locking means can also be designed without the annular wall 43.
  • FIG. 5 shows the FIG. 5 in which a view from below into the inside of a screw cap 4 is shown.
  • the jacket wall 41 is integrally formed with the internal thread 42 on the top surface 40.
  • the four driver ribs 45 define. This solution is particularly suitable for closure devices with a smaller diameter in question.
  • the closure device according to the invention can be mounted on a soft packaging, wherein the connection between the soft packaging and the closure device 1 takes place via the lower part 2. It is also possible and already mentioned that the lower part 2 itself forms part of a container. Ultimately, it may also be useful to make the lower part as an adapter to form the connection with an existing spout on any container.
  • the piercing 3 can be made in one piece with the lower part 2. The two parts are then aligned with each other.
  • Such a solution can be realized by the piercing above the lower part 2 is formed, but of course, the reverse arrangement is possible, wherein the piercing 3 is integrally formed below the spout 20 with this aligned over predetermined breaking points.
  • the latter variant has the advantage that thereby the design of the cutting edge is not affected.
  • the cutting edge 32 is designed toothed. The design of the cutting edge 32 will essentially depend on which material the container B or the membrane which is to be opened by the piercer is made.
  • the design of the cutting edge can, as already mentioned, be specifically formed on the material to be cut.
  • three different impact areas can be defined.
  • the first area of action consists in the perforation teeth 33, which cause a perforation of the material in a first step. In the direction of rotation directly following the perforation tooth will provide cutting areas 37, which cause a cutting through cutting of the material.
  • the cutting edge can pass into a blunt widened region 38, which is the furthest away in the axial direction of the perforation tooth and only the displacement of the cut container wall or membrane from the region of the spout opening is used.
  • the great advantage of the solution according to the invention is that virtually no forces occur in the axial direction on the screw cap during actuation.
  • This benefit also pays off in relation to the use of a guarantee band.
  • guarantee tapes which are separated directly from the screw cap when screwed on, are connected by corresponding predetermined breaking points, and these predetermined breaking points must be released by exerting a force in the axial direction which occurs when the cap is screwed on. Because this force in the known solutions of a closure device of the type of interest here at the same time with the axial force to be exerted on the piercer cooperates or summed, the total force that was required at the opening, was enormously large. The use of a fine thread would be unimaginable for the time being.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)
  • Lock And Its Accessories (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (16)

  1. Dispositif (1) de fermeture en matière plastique pouvant être installé à un endroit pouvant être percé d'un contenant (B) fermé, composé d'une partie inférieure (2) en forme de bonde munie d'un bec verseur (20) cylindrique qui est joint au contenant ou qui peut être joint à celui-ci, et un bouchon (4) à vis, qui peut être vissé sur la partie (2) inférieure, ainsi qu'un perforateur (3) cylindrique avec une arête de coupe, lequel est ouvert de chaque côté dans la direction axiale et agencé dans la partie inférieure de manière à pouvoir se déplacer, des moyens (44, 45) présents dans le bouchon (4) à vis agissent lors d'un mouvement de dévissage du bouchon à vis sur le perforateur, qui se déplace vers le bas au travers de l'endroit (S) pouvant être percé dans le contenant, le perforateur (3) présente sur la paroi (30) intérieure cylindrique au moins un entraîneur (34), qui coopère avec au moins une nervure (45) d'entraîneur s'étendant axialement dans le bouchon (4) à vis et qui déplace par un mouvement rotatif du bouchon (4) à vis le perforateur (3) dans un mouvement rotatif, et entre le bec verseur (20) cylindrique de la partie (2) inférieure et le perforateur (3) cylindrique sont présents des moyens (24, 31) de liaison de forme qui par un premier mouvement de dévissage du bouchon à vis déplacent en forme d'hélice le perforateur (3) vers le bas, caractérisé en ce que l'arête (32) de coupe présente trois zones d'action différentes : une première zone de perforation dans le contenant comportant au moins une dent (33) de perforation, à laquelle se raccorde de chaque côté une zone (37) de coupe, et en ce qu'une zone est conçue en tant que zone (38) de déplacement qui déplace latéralement la paroi (F) ou l'opercule du contenant partiellement coupé(e) provenant de la zone de l'ouverture de versage, sans qu'une séparation ne soit effectuée dans la paroi du contenant ou de l'opercule.
  2. Dispositif de fermeture selon la revendication 1 pour être utilisé sur un emballage (F) souple, caractérisé en ce que le bec verseur (20) présentant un filetage extérieur est conçu avec un rebord (21) inférieur périphérique permettant la fixation sur un emballage souple, et en ce que l'endroit pouvant être percé est une zone (S) de la paroi du contenant, qui est placée en dessous de l'ouverture de versage laissée libre par la partie (2) inférieure.
  3. Dispositif de fermeture selon la revendication 1, caractérisé en ce que la partie (2) inférieure est un adaptateur, qui peut être placé sur un col scellé par un opercule d'un contenant et qui présente une partie formant l'ouverture de versage s'étendant vers le haut au dessus du col du contenant.
  4. Dispositif de fermeture selon la revendication 1, caractérisé en ce que la partie (2) inférieure est elle-même conçue en tant que partie du contenant.
  5. Dispositif de fermeture selon la revendication 1, caractérisé en ce que la partie (2) inférieure et le perforateur (3) sont deux parties fabriquées à part.
  6. Dispositif de fermeture selon la revendication 1, caractérisé en ce que la partie (2) inférieure et le perforateur (3) sont fabriqués solidairement dans une disposition d'alignement axial et sont maintenus dans une position angulaire par des emplacements destinés à la rupture.
  7. Dispositif de fermeture selon la revendication 1, caractérisé en ce que le moyen dans le bouchon (4) à vis servant à actionner le perforateur (3) est une paroi (43) annulaire, sur la surface extérieure de celle-ci est formée au moins une nervure (45) d'entraîneur s'étendant parallèlement à l'axe de rotation de la paroi annulaire.
  8. Dispositif de fermeture selon la revendication 1, caractérisé en ce que le perforateur (3) est muni d'au moins une dent (33) de perforation sur son arête (32) de coupe orientée vers le contenant.
  9. Dispositif de fermeture selon la revendication 6, caractérisé en ce que le perforateur (3) est disposé en alignement axial au dessus de la partie (2) inférieure et les emplacements destinés à la rupture sont des éléments de liaison, qui en tant que liaisons pouvant être détruites sont disposées entre l'arête (32) de coupe inférieure du perforateur orientée vers le contenant et l'arête supérieure du bec verseur (20).
  10. Dispositif de fermeture selon la revendication 5, caractérisé en ce que le perforateur (3) est disposé en alignement axial en dessous du bec verseur (20) de la partie (2) inférieure et les emplacements destinés à la rupture en forme d'éléments de liaison en tant que liaisons pouvant être détruites sont disposés entre l'arête supérieure du perforateur (3) et le rebord inférieur mentionné du bec verseur (20).
  11. Dispositif de fermeture selon la revendication 1, caractérisé en ce que le bouchon (4) à vis présente une bande de garantie, qui agit dans la direction axiale et qui s'engage dans un évidement sur la partie (2) inférieure.
  12. Dispositif de fermeture selon la revendication 1, caractérisé en ce que l'évidement est une rainure annulaire dans le bec verseur (20) cylindrique.
  13. Dispositif de fermeture selon la revendication 1, caractérisé en ce que le bouchon (4) à vis présente au moins une paroi s'étendant diamétralement disposée sur la face intérieure de sa surface (40) de recouvrement, qui forme au moins une nervure (45) d'entraîneur axialement parallèle.
  14. Dispositif de fermeture selon la revendication 1, caractérisé en ce que le moyen de liaison de forme sur la paroi (30) cylindrique du perforateur (3) est une voie de glissement faisant saillie selon un mouvement hélicoïdal.
  15. Dispositif de fermeture selon la revendication 1, caractérisé en ce que le moyen de liaison de forme sur le bec verseur (20) cylindrique est un guidage curviligne en forme hélicoïdale introduite dans la paroi du bec verseur (20).
  16. Dispositif de fermeture selon les revendications 14 et 15, caractérisé en ce que la voie de glissement et le guidage curviligne sont superposés l'un sur l'autre à plat.
EP01966937A 2000-10-03 2001-09-27 Dispositif de fermeture en plastique dote d'un perforateur Expired - Lifetime EP1322523B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH19392000A CH695019A5 (de) 2000-10-03 2000-10-03 Kunststoff-Verschlussvorrichtung mit Durchstosser.
CH193900 2000-10-03
CH218100 2000-11-09
CH21812000 2000-11-09
PCT/CH2001/000582 WO2002028728A1 (fr) 2000-10-03 2001-09-27 Dispositif de fermeture en plastique dote d'un perforateur

Publications (2)

Publication Number Publication Date
EP1322523A1 EP1322523A1 (fr) 2003-07-02
EP1322523B1 true EP1322523B1 (fr) 2008-11-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01966937A Expired - Lifetime EP1322523B1 (fr) 2000-10-03 2001-09-27 Dispositif de fermeture en plastique dote d'un perforateur

Country Status (8)

Country Link
US (2) US7036683B2 (fr)
EP (1) EP1322523B1 (fr)
JP (1) JP2004509816A (fr)
AT (1) ATE415351T1 (fr)
AU (1) AU2001287479A1 (fr)
CA (1) CA2424538A1 (fr)
DE (1) DE50114527D1 (fr)
WO (1) WO2002028728A1 (fr)

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US4747501A (en) 1987-07-08 1988-05-31 National Plastics Limited Container closure method
BE1000760A6 (fr) * 1987-07-27 1989-03-28 Lynes Holding Sa Dispositif de bouchon verseur.
JP2557154Y2 (ja) 1991-09-30 1997-12-08 凸版印刷株式会社 口栓付き液体容器
US5297696A (en) 1992-04-27 1994-03-29 International Paper Company Pour spout with piercing insert
US5482176A (en) * 1994-03-16 1996-01-09 The West Company, Incorporated Membrane piercing closure and spout assembly
IT1274057B (it) 1994-10-12 1997-07-14 Ingenius Srl Erogatore perfezionato per un contenitore di liquidi.
CN1073952C (zh) 1995-01-30 2001-10-31 波多拉包装公司 用于包围容器壁中的孔的安装件及其组合体
US5960992A (en) * 1995-10-03 1999-10-05 International Paper Company Aseptic brick package spout
JP3932580B2 (ja) * 1996-11-07 2007-06-20 凸版印刷株式会社 開封刃を内蔵する注出口栓
FR2765194B1 (fr) * 1997-06-27 1999-09-17 Rical Sa Ensemble verseur a bouchage a vis pour un recipient
DE69905015T2 (de) 1998-02-17 2003-11-27 Elopak As Spikkestad Ausgiesselement für eine Verpackung
FR2779127B1 (fr) 1998-06-02 2000-07-13 Crown Cork & Seal Tech Corp Dispositif muni d'un bouchon a vis destine a un emballage
JP4160163B2 (ja) 1998-06-11 2008-10-01 日本テトラパック株式会社 キャップ付き容器
DK1088764T3 (da) * 1999-10-01 2004-11-15 Tetra Laval Holdings & Finance Lukbar åbningsindretning til forseglede emballager af hældbare födevarer
EP1088765A1 (fr) * 1999-10-01 2001-04-04 Tetra Laval Holdings & Finance SA Moyen d'ouverture refermable pour emballages de produits alimentaires liquides
EP1262412B1 (fr) * 2001-05-29 2006-08-02 Tetra Laval Holdings & Finance SA Ouverture refermable destinée aux emballages de produits alimentaires pouvant être versés

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11390516B2 (en) 2020-05-08 2022-07-19 Illinois Tool Works Inc. Tap assembly
US11878903B2 (en) 2020-06-11 2024-01-23 Illinois Tool Works Inc. Tap assembly

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US20040104245A1 (en) 2004-06-03
CA2424538A1 (fr) 2003-04-02
AU2001287479A1 (en) 2002-04-15
EP1322523A1 (fr) 2003-07-02
US7036683B2 (en) 2006-05-02
ATE415351T1 (de) 2008-12-15
US20060144852A1 (en) 2006-07-06
JP2004509816A (ja) 2004-04-02
WO2002028728A1 (fr) 2002-04-11
DE50114527D1 (de) 2009-01-08

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