EP4194359B1 - Schraubdeckel mit zwei durch einen bajonettmechanismus verbundenen teilen - Google Patents

Schraubdeckel mit zwei durch einen bajonettmechanismus verbundenen teilen Download PDF

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Publication number
EP4194359B1
EP4194359B1 EP22315302.4A EP22315302A EP4194359B1 EP 4194359 B1 EP4194359 B1 EP 4194359B1 EP 22315302 A EP22315302 A EP 22315302A EP 4194359 B1 EP4194359 B1 EP 4194359B1
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Prior art keywords
cap
sealing
container
jar
sealing piece
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EP22315302.4A
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English (en)
French (fr)
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EP4194359A1 (de
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Eric Langlet
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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
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/0442—Collars or rings
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045—Discs
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/02—Collars or rings
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • 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
    • B65D2401/55—Tamper-indicating means based on a change or a contrast in colour

Definitions

  • Lids for jars and screw bottles could be reused but problems remain to be solved for this reuse to be industrially feasible.
  • Metal lids like TWIST-OFF ® capsules are widely used in Europe, they combine several functions such as sealing, suitability for food contact and part of the labeling of the contents.
  • the different materials used are not separable.
  • they show damage which makes them unusable such as scratches, corrosion, deformation, the presence of mold on the sealing device.
  • the only possibility of managing this waste is to remelt these capsules to recycle them. This operation is costly in energy, and emits polluting gases generated by the combustion of different varnishes, inks, glues and sealants.
  • NUTELLA ® type plastic screw lids require an additional multi-material lid to ensure complete sealing; this lid is very often non-recyclable and non-compostable. Additional labeling makes the lid or jar difficult to reuse.
  • a container known to WO 2016/111179 A1 discloses a container, a capsule and a sealing part.
  • the sealing part includes peripheral protrusions so that they engage with a snap-in action in the capsule.
  • This system actually improves the strength of the seal in the lid, but if we want to seal the seal, this strength is insufficient to allow the seal to be torn from the jar and its retention in the lid when opening.
  • the present invention aims to solve this problem by offering a better connection between the capsule and the sealing part.
  • the two-part metal ring lids of the Masson-Jar ® type used in North America and of the Le parfait ® brand in Europe also present difficulties of use and obstacles to reuse.
  • this requires a tool generally a kitchen knife
  • the two parts are not secured to each other and use is then difficult .
  • the solid part which ensures sealing is multi-material and cannot be reused; it is waste that is difficult to recycle, as with the TWIST-OFF ® capsule.
  • the jars used in the distribution of consumer products have demonstrated their solidity and have good re-usability criteria, especially when they are made of noble materials such as glass, metal. or in very resistant plastic materials.
  • adhesive labels pose a problem for the reuse of these jars because their removal is difficult and makes washing the jars uncertain and complicated because once dispersed by the washing system, the label fragments are likely to be redeposited in the jars and increase the pollutant load of washing solutions.
  • the present invention aims to remedy these drawbacks by proposing in particular a reversible but very solid connection between the two parts of a cover.
  • a stop (f) keeps this element in its original place during tightening and closing of the jar or bottle until it is opened. At this stage the bayonet mechanism is not yet implemented.
  • the invention also relates to a method of securing a cover.
  • the activation of the mechanical bayonet system occurs when the jar is opened by the end user, when the capsule is turned by the user.
  • Figure 2 represents the steps of the bayonet locking process seen from below the capsule.
  • a narrowing at the end of the groove (d) to a width very slightly less than the thickness of the sealing part makes it possible to immobilize the latter in the capsule by wedging effect. This wedging further improves the strength of the bayonet system assembly.
  • the force that would be necessary to destroy this connection is greater than the tearing force of the sealing, sticking or maintaining the lid on the jar such that opening the container by rotating the lid will cause the detachment of the sealing part.
  • the sealing part is actually transferred from the jar to the capsule. This transfer is not possible with the mechanisms described so far because they do not provide a sufficiently strong bond.
  • the element of the upper face of the sealing part located closest to the capsule is printed.
  • the sealing part when it is presented in a single element, is preferably made from a homogeneous material (mono-material) or with several compostable materials (or which can disintegrate quickly in the natural environment).
  • the sealing part can be made of cardboard paper for example, and include a wax or hot-melt type coating allowing a watertight seal on the jar; in this embodiment, it is a lid.
  • a cardboard cover lightly glued with a glue of natural origin such as casein or starch, the Arabic range or a repositionable adhesive is a very simple solution, sufficient in the case of packaging of dry products.
  • this cover can also be made with any type of complexed material allowing sealing.
  • the preferred method for sealing a lid which ensures watertightness, consists of proceeding indirectly, the scope of the jar is first heated to the melting temperature of the wax or fissile material. intended to ensure waterproofing. By tightening the capsule which contains the prepositioned lid, the sealing material melts thanks to the heat provided by the reach of the jar and thus ensures the sealing of the jar-lid assembly. All types of bonding or sealing can also be used, such as ultrasound, microwaves, polymerization as long as they do not alter the capsule.
  • the sealing part can also be made of a flexible material making it possible to ensure a tight closure by tightening such as flexible silicone, latex, rubber, tin or any other material having the properties of a compressible seal.
  • the sealing part can also be made up of several planar elements interposed between the element carrying the bayonet and the capsule and thus held by the fixing system.
  • assembly (S) The system also allows you to simply mount a perforated bayonet joint on a capsule with a solid bottom.
  • a dosing, sprinkling or any other function accessory can then be mounted in place of the sealing part using the bayonet system.
  • This functionality is very interesting when setting up a network for reusing product refills such as liquid soaps, spray products, etc.
  • One solution is to add a small masking element to the capsule, when it is perforated, which makes it possible to hide or discover elements printed or marked on the sealing part depending on the rotation position of the bayonet system.
  • a small masking element to the capsule, when it is perforated, which makes it possible to hide or discover elements printed or marked on the sealing part depending on the rotation position of the bayonet system.
  • the sealing part if it is made of a printable material, has a cutout in the shape of a complementary label allowing side labeling of the jar. This additional removable label is free or completely or partially stuck or sealed on the jar by heating to the melting temperature of the sealing material.
  • FIG. 8 represents the system applied to Masson Jar ® .
  • the sealing part is made of a waterproof material capable of withstanding the heat treatments of a can and the seal is ensured thanks to a partial vacuum in the head space of the can. jar or by tightening ensuring a good seal.
  • This sealing part includes a groove (u) in which a seal is placed.
  • the bayonet mechanism, (t) and (v) allows the sealing part to come off and the interior vacuum of the can to break or the seal to break without using a tool.
  • the use of a single peripheral protuberance (v) will concentrate the loosening force exerted by the operator at a single point outside the capsule. he loosening force exerted by the operator at a single point outside the capsule.
  • the ring is made of a material which allows repeated uses of the lid-jar assembly. Plastic is a good solution, but a sheet of metal worked by stamping and stamping is also suitable.
  • a screw thread rather than screwing studs as they exist on the TWIST-OFF capsules ® . These show poor resistance over time. The range of a screw thread is greater and allows better distribution of shear stresses during tightening and therefore repeated use of the ring.
  • the ring is ideally perforated to on the one hand allow reading of the elements printed on the cover and on the other hand to allow easy dismantling of the system before recycling.
  • This lid is made of rigid cardboard, a weight of at least 300g 1m2 is suitable because the cutouts forming the bayonets must resist well when opening the jar will cause the lid to be torn off. Its shape is ideally simplified so that the printers who manufacture it can easily make the cutting tools to make it. In the case of a TWIST-OFF jar ® with four screw threads (opening one eighth of a turn) we use a square whose corners have been rounded and adjusted to the internal diameter of the groove of the ring as produced [ Fig. 7 ] these corners will make excellent bayonet locks.
  • This cover is ideally coated with a natural wax so as to allow composting, the sealing being achieved by preheating the scope of the jar just before tightening.
  • the printing is carried out with so-called food inks whose migration of components does not pose any problems and the lid will thus carry all the variable information on the packaging , bar code, batch number.
  • the jar or the bottle if they are pre-printed, carry the permanent information of the product and can be reused many times without the presence of a label contaminating or hindering washing.
  • the lid therefore carries the non-permanent functions of the packaging grouped in a minimalist form (a few grams) and it can be perfectly recycled in the paper industry.
  • the system proposed by this invention makes it possible to resolve many of the problems of re-usability of lids and therefore facilitate their sorting or composting thanks to good separability of the materials.
  • this system ensures sealing, identification of the contents, opening or uncapping, easy closing, possible reuse of the jar-lid assembly, a tamper-proof indicator, the possibility of extending labeling without additional parts.
  • the use of this system is also a good solution to remedy the two major defects of two-piece lids such as Masson Jar ® or Le Perfect ® : difficult opening and the cohesion of the two pieces after opening.
  • Example 1 Capping a jar of returnable honey.
  • This capsule is perforated (a ring) and allows reading of the information printed on the outermost part of the sealing part.
  • the sealing part a lid, is made from 1 mm cardboard printed with edible inks.
  • This cover bears all the variable information about the product, such as the nature of the honey “Chestnut honey”, the bar code, a QR code leading to an additional information site, the name of the producer and the expiry date of the product.
  • the shape of this cover has been simplified and the protuberances serving as the male part of the bayonet are simply the rounded “corners” of the cardboard which fits exactly into the capsule.
  • the cardboard was coated with beeswax after printing, so as to present a coating on both sides, on the inside the wax has a sealing function, on the outside a purely aesthetic function. (We could have used cardboard coated on one side more simply, the one intended for sealing).
  • the sealing is carried out indirectly.
  • the scope of the jar is preheated to the melting temperature of beeswax (68°C).
  • the capsule, containing the prepositioned lid is screwed immediately onto the surface of the jar. As it cools, the lid is sealed on the jar.
  • the locking system of the lid in the capsule is activated thanks to the bayonet mechanism and the lid thus formed can be reused until the pot is empty. The consumer can then dismantle the lid to put it in their family composter and take the jar and the capsule back to the store for reuse of these elements.
  • Example 2 Closing a returnable pasteurized milk bottle equipped with an opening indicator.
  • the capsule is perforated (ring) and allows you to view the opening indicator mark on the seal. It has two extra thickness marks, they are in the shape of two points accompanied by the words “O” and “F” engraved in the material.
  • the system can be produced according to the shapes indicated on [ Figure 6 ] the bottle is filled at the pasteurization temperature, i.e. 75°C.
  • the capsule and its seal are immediately screwed on before cooling the bottle in a cold water bath. Cooling causes condensation of the water vapor located in the head space of the bottle and therefore a slight vacuum which tightens the seal on the neck of the bottle.
  • the opening indicator is then normally positioned on “F” .
  • Example 3 easy-open lid fitting onto a screw-top canning jar.
  • FIG. 8 This is a jar with a diameter of 80 and a long screw thread, intended for preserving artisanal charcuterie.
  • FIG. 8 represents the system applied to this type of jar.
  • the 1 mm stainless steel sealing part has a 0.4 mm deep groove to accommodate a removable latex seal 0.5 mm thick and 2 mm wide, non-reusable. It is also equipped with a unique protuberance acting as a bayonet.
  • the capsule is made of polyethylene terephthalate made by injection. This material which has a high melting point is compatible with the temperature of an autoclave.
  • This capsule is equipped with a screw thread compatible with that of the jar and a groove (t) which is the female part of the bayonet system.
  • the capsule and the stainless steel lid equipped with its seal are placed on the jar and tightened before sterilization in an autoclave. After cooling, the water vapor accumulated in the head space of the jar condenses and creates a vacuum which will join the jar and the lid by compressing the seal. The seal is then ensured when the user releases the capsule, he engages the bayonet locking system, and, when he continues the rotation, he ends up causing the lid to come off, the jar to be depressurized and it to open. The capsule then remains attached to the stainless steel cover.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Claims (11)

  1. Ein Behälter, der einerseits ein Glas oder eine Flasche mit Schraubverschluss umfasst, und andererseits einen zweiteiligen Deckel, der aus einer Kapsel (A), die mit einem Gewinde (e) oder mit Nocken versehen ist, und aus einem Dichtungsteil (B) besteht, das in der Kapsel positioniert ist und aus mindestens einem Element besteht, wobei das Dichtungsteil auf mindestens einem seiner Elemente mindestens einen peripheren Vorsprung (h) aufweist, dadurch gekennzeichnet, dass der periphere Vorsprung (h) die den männlichen Teil eines Bajonettverschlussmechanismus bildet und dass der Boden der Kapsel mindestens eine Nut (d) aufweist, die den weiblichen Teil desselben Bajonettverschlussmechanismus bildet.
  2. Behälter nach Anspruch 1, dadurch gekennzeichnet, dass das Verschlussteil durch Siegeln, Kleben, Pressen oder durch ein Vakuum innerhalb des Glases oder der Flasche beim Festziehen sicher mit dem entsprechenden Glas oder der Flasche verbunden ist.
  3. Behälter nach Anspruch 2, der sich dadurch auszeichnet, dass die Verriegelung des mechanischen Bajonettsystems, die beim Öffnen des Behälters durch den Endverbraucher erfolgt wenn die Kapsel durchgedreht wird, es ermöglicht, eine starke Verbindung zwischen der Kapsel und die Dichtungsteil, Die Kraft, die zum Zerstören dieser Verbindung erforderlich wäre, ist größer als die Kraft, die den Dichtungsteil auf dem Glas hält, so dass beim Öffnen des Glases durch Drehen des Deckels das Dichtungsteil entfernt wird und das Dichtungsteil vom Glas auf die Kapsel übertragen wird.
  4. Behälter nach einem der vorhergehenden Ansprüche, der sich dadurch auszeichnet, dass am Ende des Hubs eine Verengung der Nut (d) auf eine Breite, die nur wenig kleiner ist als die Dicke des Dichtungsteils, es ermöglicht, dieses in der Kapsel durch eine Klemmwirkung zu fixieren, wobei diese Klemmung die Festigkeit des Bajonett-Verbindungssystems noch weiter verbessert.
  5. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Dichtungsteil bedruckt ist.
  6. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kapsel perforiert ist, was den Abdruck der Oberseite des Dichtungsteils sichtbar macht, was auch eine einfache Demontage des Systems durch Trennung des Teils vom Dichtungsteil und der Kapsel ermöglicht Durch den vom Verbraucher ausgeübten Druck in der Mitte des Systems kann dieser Druck eine Verformung durch Knicken und Zurückziehen der männlichen Teile der des Dichtungsteils bewirken, die das Bajonettverbindungssystem bilden.
  7. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kapsel und der äußerste Teil des Dichtungsteils jeweils visuelle Markierungen aufweisen, die aufgedruckt, eingraviert oder durch Entfernen oder Hinzufügen von Material erzeugt sind, Wenn der Benutzer die Kapsel dreht, bewirkt die Drehung eine Veränderung im Winkel zwischen der Kapsel und dem Dichtungsteil ermöglicht die Gegenüberstellung dieser beiden Elemente oder die Maskierung eines der Elemente durch das andere die Feststellung der Zustandsänderung des Bajonettsystems und damit der Tatsache, dass das System bereits geöffnet wurde, stellt somit ein Zertifikat der Unverletzlichkeit dar.
  8. Behälter nach einem der vorhergehenden Ansprüche, der sich dadurch auszeichnet, dass das Dichtungsteil, wenn es aus einem bedruckbaren Material besteht, einen Ausschnitt in Form eines zusätzlichen Etiketts aufweist, welches eine seitliche Etikettierung des Glases ermöglicht, wobei dieses Etikett frei ist oder vollständig oder teilweise auf dem Glas aufgeklebt oder durch Erhitzen auf die Schmelztemperatur des Dichtungsmaterials versiegelt wird.
  9. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Behälter nach einem der vorhergehenden Ansprüche, der sich dadurch auszeichnet, dass das Dichtungsteil aus mehreren ebenen Elementen besteht, die zwischen dem das Bajonett tragenden Element und der Kapsel eingefügt und somit durch das Befestigungssystem gehalten werden. das Dichtungsteil aus einem wasserdichten Material besteht, das den Wärmebehandlungen eines Autoklaven standhalten kann, und dass die Dichtung durch ein Teilvakuum im Kopfraum des Glases oder durch ein Vakuum gewährleistet ist Beim Anziehen der Dichtung entsteht. Die Kapsel weist eine Nut (u) auf, in die das Dichtungsteil eingelegt wird. Beim Öffnen der Kapsel gibt der Bajonettmechanismus (t) und (v) den Verschlussteil frei und unterbricht das interne Vakuum. Das Öffnen des Behälters ist ohne Werkzeug möglich. Durch die Verwendung eines einzelnen peripheren Vorsprungs (v) wird die vom Bediener ausgeübte Freigabekraft auf eine einzige Außenseite der Kapsel konzentriert.
  10. Behälter nach einem der vorhergehenden Ansprüche, der sich dadurch auszeichnet, dass das Dichtungsteil aus mehreren ebenen Elementen besteht, die zwischen dem das Bajonett tragenden Element und der Kapsel eingefügt und somit durch das Befestigungssystem gehalten werden.
  11. Verfahren zum Zusammenfügen der beiden Teile einer Abdeckung beim Öffnen eines Behälters nach einem der vorhergehenden Ansprüche, das sich dadurch auszeichnet, dass das Einrasten des Bajonettmechanismus beim Öffnen des Glases durch den Endbenutzer erfolgt, wenn die Kapsel durch den Benutzer gedreht wird.
    *Schritt a): zunächst bewirkt die Drehbewegung, dass der periphere Vorsprung des Dichtungsteils (h) in das weibliche Teil (d) der Kapsel eingeführt und dann in der Kapsel fixiert wird.
    *Schritt b):In einer zweiten Zeit, wenn das Schraubgewinde zum Einsatz kommt, wird die Drehbewegung von einer Translationsbewegung begleitet, welche das Ablösen des Dichtungsteils bewirkt, somit ist das Dichtungsteil nach dem Öffnen mit der Kapsel festverbundenund wird so zur Abdeckung
EP22315302.4A 2021-12-13 2022-12-01 Schraubdeckel mit zwei durch einen bajonettmechanismus verbundenen teilen Active EP4194359B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2113347A FR3130259B1 (fr) 2021-12-13 2021-12-13 Couvercle à vis dont les deux pièces sont solidarisées par un mécanisme à baïonnette

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EP4194359A1 EP4194359A1 (de) 2023-06-14
EP4194359B1 true EP4194359B1 (de) 2024-04-10

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EP22315302.4A Active EP4194359B1 (de) 2021-12-13 2022-12-01 Schraubdeckel mit zwei durch einen bajonettmechanismus verbundenen teilen

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Publication number Priority date Publication date Assignee Title
ITRN20120005A1 (it) * 2012-01-20 2013-07-21 Polykap S R L Guarnizione discoidale per elementi di chiusura internamente provvisti di risalti.
CN107108104B (zh) * 2015-01-09 2018-09-04 千住金属工业株式会社 容器、封装体及关闭容器的方法
US11305513B2 (en) * 2019-04-15 2022-04-19 Phoenix Closures, Inc. Laminate liner

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FR3130259B1 (fr) 2023-11-10
FR3130259A1 (fr) 2023-06-16

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