EP4251529A1 - Fermeture de récipient - Google Patents

Fermeture de récipient

Info

Publication number
EP4251529A1
EP4251529A1 EP21819767.1A EP21819767A EP4251529A1 EP 4251529 A1 EP4251529 A1 EP 4251529A1 EP 21819767 A EP21819767 A EP 21819767A EP 4251529 A1 EP4251529 A1 EP 4251529A1
Authority
EP
European Patent Office
Prior art keywords
ring
container
holding section
screw cap
closure
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.)
Pending
Application number
EP21819767.1A
Other languages
German (de)
English (en)
Inventor
Benjamin Schmidt
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.)
Alpla Werke Alwin Lehner GmbH and Co KG
Original Assignee
Alpla Werke Alwin Lehner GmbH and 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 Alpla Werke Alwin Lehner GmbH and Co KG filed Critical Alpla Werke Alwin Lehner GmbH and Co KG
Publication of EP4251529A1 publication Critical patent/EP4251529A1/fr
Pending legal-status Critical Current

Links

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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/325—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings with integral internal sealing means
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/16—Devices preventing loss of removable closure members
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal

Definitions

  • the invention relates to a container closure for closing the pouring opening of a container according to the preamble of claim 1 and a container according to the preamble of claim 15.
  • Closure caps are known from the prior art in the field of plastic closure caps with a guarantee ring, which caps are held captive on the container and close the pouring opening.
  • the holding function is also important insofar as legal provisions are to be expected which will oblige closures of beverage bottles to be captively connected to the beverage bottle even when they are open, ie when the closure is in an open position.
  • Such a captive closure cap for closing a container is known from WO 2020/157695 A1. After unscrewing the threaded part of the cap, it is still held on the anti-tamper ring by a first and a second connecting band on the anti-tamper ring.
  • the first and second tethers are cut from the guarantee ring by providing first and second cuts. The first cut extends over the entire circumference and separates the threaded part from the anti-tamper ring with the exception of recessed anti-tamper bars.
  • a connecting part is cut out at the first cut, which separates the first from the second retaining strap and with which the first and second retaining strap are held on the threaded part.
  • a second cut is provided on the guarantee ring below the first cut.
  • the length of the second cut corresponds to the sum of the length of the two holding straps and the length of the connecting part.
  • a third cut can also be provided on the threaded part above the first cutting line, which can be of the same length as the second cut. This creates an X-shaped configuration where the first and second tethers intersect and the connecting portion represents their intersection.
  • the majority of cuts leads to a significant investment in the slitting and folding line.
  • the guarantee ring and the lower edge of the threaded part (in the case of the X-shaped version of the retaining straps) require an increased height so that the first and second retaining straps can be cut out. This leads to a significantly increased material requirement for producing the closure cap.
  • a further object is to create a captive closure cap whose material consumption differs only slightly from the material consumption of a conventional closure cap with guarantee ring.
  • the invention is preferably characterized in that the height of the holding section corresponds to the height of the guarantee ring when the folding ring is folded in.
  • the guarantee ring is continuous in the area of the holding section.
  • An expensive cutting system which makes at least one further separating cut on the container closure, is therefore not necessary for the implementation of a closure that can be folded down from the container neck.
  • the editing system can therefore be particularly cost-effective and can even be retrofitted to existing systems. Also, the service lives of the knives of cutting systems that can make multiple cuts are low. Correspondingly high maintenance costs do not arise in the manufacture of the present container closure.
  • the part of the folding ring which adjoins the holding section unfolds away from the holding section when the screw cap is opened.
  • the folding ring in the area of the holding section is thus everted.
  • the folding ring folded open in the region of the holding section can be hooked to the holding ring or to the external thread of the container neck and the cap is fixed in its open position.
  • the guarantee ring is free of an additional separating cut in the area of the holding section.
  • an additional separating cut there is no need for an additional separating cut, as the outer diameter of the cap is large enough to be pulled over the neck of the container when unscrewing. This is made possible by the cap being sufficiently flexible and not too stiff that it snags on the neck.
  • the screw cap is free of an additional separating cut in the area of the holding section. Such a further separating cut enables an even greater axial widening of the distance between the guarantee ring and the cap, since the cap does not get caught on the container neck.
  • the present Cap flexible enough to be pulled or pushed over the neck.
  • the invention is also characterized in that section 1 to 3 tabs are present on the underside of the holding section. Due to their flexibility in the open position of the cap, these tabs can be supported on the retaining ring in such a way that at least the two outer tabs are in contact with the retaining ring. As a result, the screw cap is firmly fixed in the open position. Nevertheless, when the cap is closed again, the tabs can jump over the external thread and the fixation can be released. It has proven to be expedient if an inner cone protruding inwards, e.g. in the form of a sealing cylinder or a sealing ring, is formed on the cover disc of the screw cap and is designed to interact with the inner wall of the container neck in the closed position in a sealing manner. The closure cap can therefore act as a so-called "cone sealer” and reliably seals the bottle neck.
  • the invention is also characterized in that the closure cap is designed to interact with a standardized container neck with an external thread and an annular projection.
  • the closure cap can therefore be standardized Container necks, in particular PET beverage bottles, are placed. Containers which are joined together with the closure cap according to the invention therefore do not have to be specially adapted to the closure cap.
  • the screw cap, the guarantee ring, the first and second arms, the predetermined breaking webs and the tongue are produced in one piece.
  • the closure cap can be produced in an injection mold.
  • the predetermined breaking webs and the holding section are produced by providing a separating cut, which separating cut is interrupted by the predetermined breaking webs and the holding section. Further separating cuts are not provided, which means that the cutting system is much cheaper to buy than cutting systems with several knives.
  • the inner cone is preferably also produced in one piece together with the other parts of the closure cap.
  • a further aspect of the invention relates to a container having a container body, a container neck adjoining the container body, an external thread formed on the container neck and a container closure according to the above description.
  • the folding ring in the open position, is unfolded in the area of the holding section or turned outwards and the tabs of the folding ring are supported in the area of the holding section in the open position on the holding ring or the external thread, whereby the screw cap is fixed in the open position. Since the holding section is connected to the folding ring and is not separated from it by a second separating cut, the torque when the closure cap is opened can be transmitted to the folding ring via the holding section. The folding ring is therefore automatically unfolded in the area of the holding section and serves as a fixing element for fixing the cap in the open position.
  • FIG. 1 a side view of a container closure
  • FIG. 2 a sectional view along section line II-II;
  • FIG. 3 a cross section through the container closure
  • FIG. 5 an isometric view of the container closure in the open position and placed on a preform.
  • the container closure 11 is captively held on a container 13, in particular on a bottle.
  • the container is shown as a standard preform 13 in FIG.
  • the closure cap 11 comprises a screw cap 15, a guarantee ring 17 and a folding ring 19.
  • the screw cap 15 includes a cover plate 21 and a first cylindrical shell 23 with a free edge 25. On the inside of the shell 23 is a réellege thread 27 is formed.
  • the container 13 comprises a container body 29 and a container neck 31 adjoining the container body 29.
  • the container neck 31 is designed as a second cylindrical jacket.
  • An external thread 33 is formed on the container neck 31 and interacts with the internal thread 27 .
  • the closure cap 11 closes the pouring opening 51 which is provided inside the neck 31 of the container.
  • the closure cap 11 is designed to interact with a standardized container neck 31 with an external thread 33 and a retaining ring 35 .
  • the guarantee ring 17 is held on the container neck 31 in a form-fitting manner.
  • the retaining ring 35 is formed on the outside of the container neck 31 and can be gripped from underneath by the folding ring 19 formed on the inside of the guarantee ring 17 .
  • the folding ring 19 is injection molded together with the guarantee ring 19 and is unfolded after the injection molding ( Figures 1, 3 and 4). So that the folding ring 19 can reach under the retaining ring 35, it is folded into the guarantee ring 17 along a folding line 37. So that the folding ring 19 can be folded in better, tabs 39 are formed on the folding ring 19 and on the folding line
  • the tabs 39 also act as claws and reliably grip the retaining ring. An axial removal of the guarantee ring 17 from the retaining ring 35 is therefore reliably prevented when the screw cap 15 is unscrewed.
  • the tabs 39 are preferably distributed evenly over the circumference.
  • the container closure 11 has a central axis 43 with respect to which the container closure 11 is rotationally symmetrical.
  • a separating cut 45 is provided in a plane of rotation perpendicular to the center axis 43 and separates the anti-tamper ring 17 from the screw cap 15 in the circumferential direction.
  • the free edge 25 is formed by the separating cut 45 .
  • the separating cut 45 is made with a knife tool after the closure 11 has been removed from the injection mold.
  • the separating cut 45 is interrupted by predetermined breaking webs 47 and a holding section 49 .
  • the predetermined breaking webs 47 break when the screw cap 15 is unscrewed for the first time and, due to their intact state, indicate that the closure 11 is unopened and originally closed.
  • the holding section 49 does not break when first opened and enables a permanent connection between the screw cap 15 and the guarantee ring 17.
  • the height of the holding section 49 corresponds to the height of the guarantee ring 17 when the folding ring is folded in. Therefore, the holding section 49 is not separated from the guarantee ring by a second separating cut. In contrast to this, such a second separating cut is unavoidable in the prior art so that the cap can be folded away from the container neck.
  • the cap 15 can be unscrewed from the container neck 31 without the holding section 49 being a hindrance when screwing on. This is due in particular to the fact that the closure 11 has an enlarged outside diameter 50 of more than 30 mm. As a result, the cap 15 is less rigid than with smaller outer diameters and can be pulled over the upper end of the container neck 31 by deformation.
  • the holding section 49 extends from the separating cut 45 to the folding ring 19 and is connected to the folding ring 19 on its lower side.
  • the screw cap 15 can be pivoted from a closed position (FIGS. 1 and 4), in which it closes the pouring opening 51, into an open position (FIG. 5). When swiveling into the open position, the entire holding section 49 and not just its connection to the guarantee ring 17 acts as a hinge to the guarantee 17. In the open position, the pouring opening 51 is completely exposed.
  • the holding portion 49 is inflexible or non-articulated with the guarantor tiering 17 .
  • the connection of the holding section 49 to the guarantee ring 17 is therefore rigid and does not serve as a joint.
  • a torque generated when the screw cap is opened can be transmitted from the screw cap to the guarantee ring 17 and the guarantee ring 17 is put into torsion and accordingly twisted.
  • the torsion of the guarantee ring 17 at the transitions leads to restoring forces that can fix the screw cap 15 in the open position.
  • the unfolding of the folding ring 19 in the region of the holding section 49, as described in the next paragraph, is also advantageous.
  • An inwardly protruding inner cone 53 (FIG. 3), e.g. in the form of a sealing cylinder or a sealing ring, is preferably formed on the cover disk 21 of the screw cap 15.
  • the inner cone 53 is designed to cooperate in a sealing manner with the inner wall 55 of the container neck 31 in the closed position.
  • the container closure 11 can therefore act as a so-called “cone sealer” and reliably seals the container neck 31 .

Abstract

L'invention concerne une fermeture de récipient (11) conçue pour fermer une ouverture de déversement (51) d'un récipient (13), comprenant un bouchon fileté (15) possédant un bord libre (25), une première surface latérale cylindrique (23), un disque de recouvrement (21) adjacent à la surface latérale (23), et un filetage interne (27) qui est formé sur le côté intérieur de l'enveloppe (23) et qui peut interagir avec un filetage extérieur (33) d'un col (31) de récipient du récipient (13), et une bague d'inviolabilité (17) qui est reliée au bord libre (25) de la surface latérale (15) par l'intermédiaire d'éléments de liaison à rupture prédéfinie (47) et possède une bague pliable (19) qui est conçue pour venir au contact par complémentarité de forme avec un contre-appui situé dans la zone du col (31) de récipient et se présentant sous la forme d'une bague de retenue (35), et qui peut être pliée dans la bague d'inviolabilité (17) à partir du bord inférieur de ladite bague d'inviolabilité. Entre le bouchon fileté (15) et la bague d'inviolabilité (17) se situe une découpe de séparation (45) disposée dans le plan de rotation de la fermeture (11), ladite découpe de séparation étant interrompue par les éléments de liaison à rupture prédéfinie (47) et par une partie de retenue (49) servant à relier le bouchon fileté (15) à la bague d'inviolabilité (17). La hauteur de cette partie de retenue (17) correspond à la hauteur de la bague d'inviolabilité (17) lorsque la bague pliable (19) est pliée.
EP21819767.1A 2020-11-24 2021-11-23 Fermeture de récipient Pending EP4251529A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01497/20A CH718086A1 (de) 2020-11-24 2020-11-24 Behälterverschluss.
PCT/EP2021/082658 WO2022112238A1 (fr) 2020-11-24 2021-11-23 Fermeture de récipient

Publications (1)

Publication Number Publication Date
EP4251529A1 true EP4251529A1 (fr) 2023-10-04

Family

ID=74095622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21819767.1A Pending EP4251529A1 (fr) 2020-11-24 2021-11-23 Fermeture de récipient

Country Status (3)

Country Link
EP (1) EP4251529A1 (fr)
CH (1) CH718086A1 (fr)
WO (1) WO2022112238A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499519A1 (fr) * 1981-02-11 1982-08-13 Grussen Jean Capsule de bouchage a vis avec anneau d'inviolabilite
US5755347A (en) * 1989-07-27 1998-05-26 Owens-Illinois Closure Inc. Tamper indicating package
WO2011093597A2 (fr) * 2010-01-28 2011-08-04 주식회사 그린캡 Bouchon pour contenant d'emballage
US20190375555A1 (en) * 2018-06-12 2019-12-12 Closure Systems International Inc. Tethered Bridge Closure
EP3917852A1 (fr) 2019-01-30 2021-12-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Capuchon permettant de fermer un récipient, combinaison d'un capuchon et d'un col
DE202020100758U1 (de) * 2019-07-31 2020-03-26 Bericap Gmbh & Co Kg Unverlierbarer Verschluss mit stabilisiertem Öffnungswinkel

Also Published As

Publication number Publication date
WO2022112238A1 (fr) 2022-06-02
CH718086A1 (de) 2022-05-31

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