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EP4001141B1 - Bouchons pour un récipient - Google Patents

Bouchons pour un récipient Download PDF

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Publication number
EP4001141B1
EP4001141B1 EP21201975.6A EP21201975A EP4001141B1 EP 4001141 B1 EP4001141 B1 EP 4001141B1 EP 21201975 A EP21201975 A EP 21201975A EP 4001141 B1 EP4001141 B1 EP 4001141B1
Authority
EP
European Patent Office
Prior art keywords
olive
stopper
wall
container
annular
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.)
Active
Application number
EP21201975.6A
Other languages
German (de)
English (en)
Other versions
EP4001141A1 (fr
Inventor
Roland Kneer
Stephan Kneer
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.)
Gaplast GmbH
Original Assignee
Gaplast 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
Application filed by Gaplast GmbH filed Critical Gaplast GmbH
Publication of EP4001141A1 publication Critical patent/EP4001141A1/fr
Application granted granted Critical
Publication of EP4001141B1 publication Critical patent/EP4001141B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D41/32—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
    • B65D41/58—Caps or cap-like covers combined with stoppers
    • 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
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0023—Plastic cap-shaped hollow plugs
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/28—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials
    • B65D51/30—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials for desiccators
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining 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
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/26—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with means for keeping contents in position, e.g. resilient 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • 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
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure

Definitions

  • the invention relates to a stopper for a container, with a lid with a peripheral wall surrounding the neck of the container, on the lower edge of which a circumferential, tear-off locking ring is formed to ensure the originality of the container contents with inward-pointing blocking lugs, which in the fastening position of the stopper have an outward-pointing one Grip under the ring projection of the container, and with an olive provided with an external annular bead for clamping engagement in the container opening.
  • stoppers are known and have proven themselves many times to seal the contents of the container with the help of the olive, with the tamper-evident ring ensuring that the contents of the container cannot be manipulated without authorization.
  • a user wants to remove the stopper from the container for the first time, he first tears off the tamper-evident ring from the lower edge of the peripheral wall surrounding the container, whereupon he can lever the stopper off the container neck.
  • the EP 2 444 334 A1 discloses a plug with a recessed groove that has a metal cap which is firmly connected to the plastic body of the plug.
  • This metal cap is preferably made of steel and is firmly connected to the plastic body of the stopper by an adhesive, preferably by a hot-melt adhesive. Because of the metal cap, the depression channel cannot be compressed laterally to make it easier to pry the stopper off the neck of a container.
  • the EP 0 798 228 A1 discloses a plug with a recessed groove, in which the outer annular lid area according to Figure 3 of recesses distributed over the circumference, which are inserted during the production of the stopper by immersion cores the injection mold, with which the blocking lugs are formed on the locking ring.
  • the publication gives no indication of forming at least one upwardly projecting rib on the top of the annular lid area instead of the recesses in order to stiffen this lid area when the stopper is levered off from a container opening.
  • the stopper Since the stopper is a mass-produced item, its manufacturing costs should be as low as possible, with the amount of plastic material used being an important cost factor.
  • the present invention is based on the object of providing a stopper for a container which securely seals the contents of the container and can be removed more easily even if the olive is firmly clamped in the container than is the case with the previously usual stoppers.
  • the stopper should be able to be produced with less plastic material.
  • the invention provides that a circular, concentric recess groove is formed in the circular cover of the plug, which has a radially outer annular wall and a radially inner annular wall, which are connected to one another by a bottom wall.
  • the outer annular wall and the radial inner annular wall preferably run parallel to each other and at right angles to the central circular lid area and the outer annular lid area, on which they are formed.
  • the depression channel therefore preferably has a U-shape in cross section.
  • the invention further provides that the radially outer annular wall forms the olive, which has the circumferential annular bead on its outside, which causes the clamping engagement in the neck of the container.
  • the annular olive is connected at its lower end to the bottom wall of the recess groove, which supports the olive against the effects of lateral forces during clamping engagement in the container neck, the olive can be made shorter in comparison to conventional plugs, thereby reducing the amount of for plastic material used in the plugs can be reduced. In addition, the wall thickness of the olive supported in this way can also be reduced.
  • the depression groove also makes it easier to pry the stopper off the container neck in that the depression groove can be compressed slightly when the stopper is pushed back from the container neck, which makes it easier to remove the stopper from the container neck.
  • the invention also provides that recesses which pass through the locking ring are formed directly above the blocking lugs and extend beyond the blocking lugs on both sides. These recesses are created by lateral slides of the injection molding tool, which together with an inner contour sleeve form the blocking lugs, as is the case with a conventional plug with a closed lid DE 42 36 741 C1 is described. These lateral recesses ensure that no foreign substances from outside can get close to the container opening, as would be the case if the blocking lugs were formed by plunger cores that would be guided through recesses in the lid part. Through this Recesses in the outer annular lid area would otherwise make it more difficult to pry off the plug, since the outer annular lid area would not have the required rigidity.
  • the invention also provides that the radially inner annular wall is extended beyond the bottom wall and forms the peripheral wall of a desiccant chamber.
  • the plug expediently contains a spiral hold-down device, the elastic spiral webs of which, which end in a closing ring, can be formed on the recess channel.
  • the recess groove is formed on the central circular lid area and the outer annular lid area, whereby the lower end area of the radially outer annular wall forming the olive can be bevelled in a straight line in order to facilitate its removal from the mold when producing the stopper.
  • this slope also serves as a slip-on aid when automatically plugging the cap on the tube. This also makes it easier to pry off the plug.
  • the invention provides that the top of the annular cover area is provided with at least one circumferential ribs projecting upwards.
  • the olive ring has a corrugated wall surface on its inside, which is formed by a plurality of grooves in the wall of the olive that run in the axial direction of the plug.
  • the grooves can have a constant depth of about 10% to about 50% of the minimum wall thickness of the olive ring, with the suitable value depending on the plastic material used and the geometry of the corrugation.
  • the webs of the corrugation preferably have a curved cross-sectional shape.
  • peripheral wall of the plug and the locking ring are connected to each other at points between the blocking lugs with short webs that can be easily torn off.
  • Figure 1 shows an embodiment of the plug according to the invention, in the circular cover of which a concentric depression channel 1 is formed, which contains a radially outer annular wall 2, a bottom wall 3 and an inner annular wall 4.
  • the depression channel 1 has a U-shape in cross section and is formed on a central circular lid area 5 and an outer annular lid area 6.
  • the radially inner annular wall 4 is extended beyond the bottom wall 3 and, together with the annular wall 4, forms the peripheral wall 7 of a desiccant chamber.
  • a rectangularly angled peripheral wall 8 is connected to the annular lid area 6, on the lower edge of which a tear-off locking ring 9 is formed to ensure the originality of the container contents, which is connected to inward-pointing blocking lugs 10. Above the blocking lugs 10 there are recesses 11 which pass through the locking ring 9.
  • the radially outer annular wall 2 of the depression channel 1 is designed as an olive in that it is provided with an externally circumferential annular bead 12 for clamping engagement in the opening of a container, not shown.
  • the lower end region 13 of the olive runs in a straight line and diagonally inwards.
  • a spiral hold-down device 14 is formed with its elastic spiral-shaped webs 15 on the bottom wall 3 of the depression channel 1.
  • Figure 2 shows an identical plug with the exception that webs 7 ', 8' running in the radial direction are formed on the top of the central lid area 5 and on the top of the annular lid area 6, which increase the rigidity of the two lid areas.
  • the protruding webs 7 'and 8' are each designed to be evenly spaced from one another and distributed over the entire circumference of the cover areas 5, 6.
  • Figure 3 shows a compilation of a conventional stopper 16 in the left half of the figure and the stopper 17 according to the invention in the right half of the figure. From this comparison it can be seen that in the plug 17 according to the invention, the olive 2 is significantly shorter than the olive 18 of the conventional plug 16, which is possible because the olive 2 is held and supported by the bottom wall 3. Thanks to this support, the olive 2 develops the same contact force as the longer olive 18, which also makes prying it off a container much easier due to the shorter dimensions. The sloping surface 13 at the lower end of the olive 2 also contributes to this. On the top of the annular cover area 6, an annular circumferential rib 19 is formed.
  • a corrugation can be formed on the radially inner surface of the olive 2.
  • This corrugation which consists of closely spaced grooves and cross-sectionally rounded projections between them, makes it easier to lever off the stopper according to the invention, while at the same time maintaining the contact pressure of the olive required to seal the container contents.

Landscapes

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

Claims (6)

  1. Bouchon pour un contenant, avec un couvercle avec une paroi périphérique (8) entourant le col du contenant, sur le bord inférieur de laquelle est formée une bague de sécurité (9) périphérique pouvant être déchirée destinée à garantir l'inviolabilité du contenu de contenant avec des épaulements de blocage (10) pointant vers l'intérieur, qui saisissent par le bas une partie faisant saillie annulaire, pointant vers l'extérieur, du contenant dans l'installation de fixation du bouchon, et
    avec une olive (2) pourvue d'un bourrelet annulaire (12) s'étendant en périphérie à l'extérieur, destinée à venir en prise par serrage avec l'ouverture de contenant,
    dans lequel est réalisé dans le couvercle un sillon de renfoncement (1) concentrique de forme circulaire, qui a une paroi annulaire radialement extérieure (2) et une paroi annulaire radialement intérieure (4), qui sont reliées l'une à l'autre par une paroi de fond (3),
    et dans lequel le sillon de renfoncement (1) est formé sur la zone de couvercle de forme circulaire centrale (5) et la zone de couvercle de forme annulaire extérieure (6), dans lequel la paroi annulaire radialement extérieure forme l'olive (2) et la paroi annulaire radialement intérieure (4) est prolongée au-delà de la paroi de fond (3) et forme la paroi périphérique d'un compartiment d'agent déshydratant (7),
    caractérisé en ce
    que le côté supérieur de la zone de couvercle de forme annulaire (6) est pourvu d'au moins une nervure (19) dépassant vers le haut.
  2. Bouchon selon la revendication 1,
    caractérisé en ce
    que la zone d'extrémité inférieure (13) de l'olive (2) est chanfreinée de manière rectiligne.
  3. Bouchon selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce
    que l'olive présente sur son côté intérieur une surface de paroi rainurée, qui est formée par une pluralité de rainures s'étendant dans le sens longitudinal de l'olive dans la paroi de l'olive.
  4. Bouchon selon la revendication 3,
    caractérisé en ce
    que les rainures ont une profondeur sensiblement constante de 10 % à 50 % de l'épaisseur de paroi minimale de l'olive.
  5. Bouchon selon l'une quelconque des revendications 3 ou 4,
    caractérisé en ce
    que les nervures ont une forme de section transversale bombée entre les rainures.
  6. Bouchon selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce
    qu'un serre-flan hélicoïdal (14) est formé sur la paroi de fond (3) du sillon de renfoncement (1).
EP21201975.6A 2020-11-13 2021-10-11 Bouchons pour un récipient Active EP4001141B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020129998.2A DE102020129998B3 (de) 2020-11-13 2020-11-13 Stopfen für einen Behälter

Publications (2)

Publication Number Publication Date
EP4001141A1 EP4001141A1 (fr) 2022-05-25
EP4001141B1 true EP4001141B1 (fr) 2024-02-07

Family

ID=78087203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21201975.6A Active EP4001141B1 (fr) 2020-11-13 2021-10-11 Bouchons pour un récipient

Country Status (9)

Country Link
US (1) US20220153484A1 (fr)
EP (1) EP4001141B1 (fr)
CN (1) CN114476354A (fr)
BR (1) BR102021022630A2 (fr)
CA (1) CA3138279C (fr)
DE (1) DE102020129998B3 (fr)
ES (1) ES2975162T3 (fr)
MA (1) MA58540B1 (fr)
MX (1) MX2021013952A (fr)

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Publication number Publication date
EP4001141A1 (fr) 2022-05-25
US20220153484A1 (en) 2022-05-19
CA3138279A1 (fr) 2022-05-13
ES2975162T3 (es) 2024-07-03
MA58540B1 (fr) 2024-04-30
MX2021013952A (es) 2022-05-16
CA3138279C (fr) 2025-10-14
CN114476354A (zh) 2022-05-13
DE102020129998B3 (de) 2021-10-28
BR102021022630A2 (pt) 2022-05-24

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