EP3569516A1 - Dosendeckel - Google Patents

Dosendeckel Download PDF

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Publication number
EP3569516A1
EP3569516A1 EP19185029.6A EP19185029A EP3569516A1 EP 3569516 A1 EP3569516 A1 EP 3569516A1 EP 19185029 A EP19185029 A EP 19185029A EP 3569516 A1 EP3569516 A1 EP 3569516A1
Authority
EP
European Patent Office
Prior art keywords
lid
opening
plastic
metallic
collar part
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.)
Granted
Application number
EP19185029.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3569516B1 (de
Inventor
Klaus Thielen
Eva-Maria Thielen
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.)
Piech Gregor Anton
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3569516A1 publication Critical patent/EP3569516A1/de
Application granted granted Critical
Publication of EP3569516B1 publication Critical patent/EP3569516B1/de
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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/506—Rigid or semi-rigid members, e.g. 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
    • B65D17/4014—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab and provided with attached means for reclosing or resealing
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0059—General cross-sectional shape of container end panel
    • B65D2517/0061—U-shaped
    • B65D2517/0062—U-shaped and provided with an additional U-shaped peripheral channel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/504—Details of preformed openings
    • B65D2517/5064—Details of preformed openings the punched-out part of the preformed opening is re-inserted in the preformed opening and forming part of the tear panel

Definitions

  • the invention relates to a can lid with a tightly resealable opening according to the preamble of claim 1.
  • Such a resealable can lid is from the DE 10 2010 013 531 A1 known.
  • a can lid having a reclosable opening in which an opening is made in the metallic can lid and the edge of that opening is crimped to provide anchoring for a prefabricated plastic closure.
  • the plastic closure part comprises a base part to be connected to the beaded edge of the can opening, in which opening formed by a flat plug is formed.
  • the flat plug is connected to the opening edge via a plastic tear seam, so that the flat plug connected to a pull tab can be released by pulling over the tear tab of the plastic base part and pivoted into an open position.
  • the opening can be temporarily closed again by pressing in the flat plug, which is preferably conical on its underside.
  • a re-sealable opening having can lid, in which also in the metallic can lid an opening is introduced into which a prefabricated, rupturable plastic closure member is inserted, wherein the prefabricated plastic element has a peripheral edge double flange, in which engages the edge of the punched can opening and is fixed therein.
  • the prefabricated plastic element comprises a closure part, which is connected to the peripheral edge of the plastic part via a tear seam.
  • a pull tab connected to the closure part makes it possible to tear open the plastic tear seam between the peripheral area of the plastic part and the lid part and thus release the can opening.
  • the closure part which preferably remains in contact with the peripheral area via a tab region, can be pressed back into the opening.
  • a resealable can lid is known in which in particular the emergence of sharp edges should be avoided, as they arise when tearing ordinary tin cans over a tab.
  • a prefabricated plastic part is snapped into a provided in the metallic can lid punched, which has a lid part which is connected via a thin plastic wall with the snapped into the can opening base part.
  • the closure part is designed so that it engages to reclosure of the opening via a snap-locking connection in the base part.
  • a beverage can with a lid consisting of sheet metal in which a weakening line is formed and delimited by the weakening line lid part is detachable by means of a pull tab, wherein on the lid captive a substantially parallel to the lid surface pivotable closure part is attached to the removal opening.
  • a metal lid for beverage cans which has a pre-punched pouring opening in the lid surface, which is sealed by a closure element and after the first opening is again tightly closed.
  • the lid and closure element can be positively connected to one another by means of bayonet-like interlocking elements, which are formed directly from the lid material or the closure element.
  • Object of the present invention is to develop the resealable can lid according to the preamble of claim 1 in such a way that while maintaining a high quality, gas- and liquid-tight closure, the functionality further improved and especially facilitates the process of opening the can, or the this required effort is reduced and that further simplifies the manufacture of the can lid due to the structural design, designed more cost-effective and automatic assembly compared to previous solutions can be made much cheaper.
  • the collar part and the lid receiving part each have a plurality of integrally formed and distributed annular projections, that these approaches extend through adapted openings in the metallic cover part, and that collar part and lid receiving part with the interposition of a primer layer by rivet-like deformation the approaches under heat with the metallic lid part form and locks and are tightly connected.
  • the elevated temperature reactive priming layer overlap both surfaces of the metallic lid part, i. extends over the outer and inner surface of this cover part.
  • the thus provided sealing layer which may be a sealing wax, ensures that the plastic materials are tightly and firmly connected to the metal parts, which is preferably done by heat sealing at elevated temperature, for example at about 150 ° C to 160 ° C.
  • An embodiment variant of the invention is characterized in that the opening area delimited by a peripheral tear line is connected to the adjacent lid area by a weakening groove which is partially broken, in particular in the beginning and end area associated with the tearing movement.
  • the force required to open the closure can be reduced in a defined manner, the tightness being reliably guaranteed in this case as well, by the layer of plastic material provided over the entire surface and firmly adhering to the underside of the metallic lid or the correspondingly attached plastic film.
  • Manufacturing technology results according to a further embodiment of the invention has a significant advantage in that collar part, lid receiving part and pull tab made of the same plastic material, in particular polypropylene, and are formed by a single interconnected via connecting plates injection molded part, which can be converted by folding in an assembly unit and on the the openings in the metallic cover part associated with approaches in a connecting step with the metallic cover part is connectable.
  • the metallic can lid is provided on both sides of the entire surface with the already mentioned sealing layer, which allows all plastic components or plastic parts of a single component, in particular polypropylene, to inject in one operation and still solid and tight connections to ensure with the metallic can lid.
  • the three interconnected components of the same plastic component are folded on each other, so that there is an element that can be done by pressing the protrusions provided on the plastic parts in the corresponding openings with the corresponding can lid areas, the rivet-like bonding and heat sealing under the effect of the sealing layer.
  • the pull tab preferably has at least one extension extending up to the metallic cover part, which is connected to the cover part during a sealing step.
  • a snap-locking connection which is particularly advantageous for closures of containers with a lid part is characterized in that the snap-locking connection between the collar part and the lid receiving part consists of a coupling and sealing rib provided on the lid receiving part, which engages in a first adapted recess in the collar part and a biasing and Verrastlippe consists, which engages latching in a second recess of the collar portion and presses the wall rib between the two recesses against the coupling and sealing rib.
  • a further embodiment of the invention which is also independent of the nature of the connection of the plastic parts with the metal parts and regardless of whether only one plastic material or more plastic materials use is of particular advantage, is characterized in that the opening area of the metallic can lid of the surrounding cover surface is separated under formation of interlocking projections and recesses by a cutting, in particular punching process, that the opening portion and the surrounding cover surface over these projections and recesses are positively and non-positively held together as a component and the tightness of the finished, unopened can lid is ensured by the inner plastic coating or film.
  • the projections and recesses are preferably coupled via undercuts.
  • Fig. 1 shows a conventionally designed in its basic form can lid 1 made of metal, which is connected via a flange 2 with the interposition of a sealing material with the respective associated can liquid and gas tight.
  • Fig. 1 can be seen a connected with a tear tab 15 collar part 5, which encloses the opening area and is firmly connected to the can lid surface 23.
  • a lid receiving part 10 encloses the opening portion 11 and can be swung up by means of the tab 15 during the opening process.
  • a buckling spring element 22 ensures that the pivoted lid is held in the open position when it is pivoted in particular by more than an angle of 90 °.
  • Fig. 1 is also removable that the reclosable opening with all its associated components off-center, in fact arranged such that, despite the presence of the reclosable opening the stackability is unchanged as in conventional doses.
  • Fig. 2 shows the formed as a stamped part metallic can lid of an advantageous embodiment of the invention prior to connection with the associated plastic components of the resealable lid.
  • Continuous openings 31 which serve to connect the plastic components to the metallic can lid and which are arranged annularly on both sides of a weakening groove or tear notch 4 can be seen in this illustration.
  • a peculiarity of the embodiment of the weakening groove or tear-open groove 4 is that, in contrast to conventional solutions, it is not continuous, but has perforations 36, which lead to the advantageous effect that the opening process is facilitated, i. the force required to open the swing-up lid part is reduced.
  • These openings 36 are formed during the punching process of the lid, but leave the lid part as a uniform stamped part.
  • the tightness to be ensured by the can lid is not impaired by the perforations 36 because the required tightness is ensured by an inner sealing foil which extends over the entire inner can lid surface and also into the flanging region.
  • Fig. 3 shows a cross-sectional view of the can lid after the Fig. 1 and 2 , The arrangement is shown in the closed state.
  • the area of the can lid which lies within the tear line 4, ie the opening area 11, is enclosed by a lid receiving part 10 made of plastic, which is firmly and tightly connected to this metallic portion, by means of a plurality of molded projections 32, which are characterized by the in detail Fig. 2 extending openings 31 extend.
  • a heat-sensitive adhesive is provided at the contact surfaces between the plastic part and the metal part.
  • both the outer surface and the inner surface of the metallic can lid with a suitable adhesion promoter suitable material, in particular in the manner of a sealing wax, coated, so that the bonding agent is available wherever it is needed for connection and sealing purposes.
  • a collar part 5 made of plastic material is provided radially outside the opening area, which is connected in the same way as the lid receiving part 10 through openings 31 passing through lugs 30 with the metallic can lid.
  • a plastic layer or plastic film is important, extending over the entire bottom of the can lid into the region of the flared edge 2 and this underside covering the entire surface.
  • This plastic layer 26 is in turn formed with the metallic can lid via a bonding agent, in particular a process which becomes effective or reacts when the heat is introduced.
  • the Fig. 3 indicates that this sealing layer extends over both the mechanical connection points between metal and plastic parts and on the weakening 4.
  • connection technology between the metallic lid and plastic components is that metal stamping and plastic parts can be manufactured separately, no metal Umspritzungsvortician are required and the connection between metallic can lid and plastic components can be done in a single operation, when the plastic components are applied to the metallic surface and the protrusions 30 pass through the openings 31.
  • Fig. 4 shows a principle principle applicable for snap-locking connections design principle, which is advantageously used for the resealable can lid according to the invention.
  • two encircling ribs are provided on the lid holding part 10, namely an outer coupling and sealing rib 34 and an inner preloading and locking rib 35.
  • the coupling and sealing rib 34 sealingly engages in a first recess 39 of the collar part 5, while the preloading and Verrastrippe 35 extends into a second recess 40 of the collar member 5 and between this rib and the recess a snap-locking connection is created.
  • this rib 35 is dimensioned and designed so that it presses in the locked state against the central wall rib 41 of the collar part, so that this wall portion pressed against the sealing rib 39 and thus the sealing effect is even safer and better.
  • Fig. 4 also shows that the metallic can lid is covered on both sides and the entire surface with an adhesion-promoting layer 37, which also makes it possible to improve the tightness of a filled can sealingly fix the outer edge of the lid receiving part 10, which rests against the metallic can lid surface, via the bonding layer.
  • FIG. 5a to 5c show a particularly advantageous embodiment of the invention, which consists in that all plastic components of the resealable can lid made of the same plastic material and thereby a production of these plastic components can be done in a single injection molding process.
  • collar part 5, lid receiving part 10 and pull tab 15 are lying in a plane and joined together by connecting tabs 42 together, so that a virtually one-piece overall structure is obtained, which can be handled as a unit in the manufacturing process and for mounting on Can lid must be folded only on each other, so that then approximately concentric with each other approaches 30 of collar part 5 and lid receiving part 10 can be pressed in a single indentation through the openings 31 in the metal can lid and then deformed in the manner already described.
  • Fig. 6 shows a particularly preferred embodiment of a can lid according to the invention, wherein in this Fig. 6 shown metallic can lid part in particular with the plastic elements after Fig. 5 can be combined to a finished resealable can lid.
  • the opening portion 11 of the metallic can lid is separated from the surrounding outer, fixed lid surface 43 by a cutting or punching in particular, with the formation of interlocking projections 32 and recesses 33, as for example in US Pat Fig. 6 is shown.
  • the two initially separate parts are again positively joined together, so that practically becomes a part of the two parts again, which can be handled as a single part.
  • the operations of separating and nesting are carried out directly one after the other, ie the punching stroke is followed by the positive-locking merging of the two parts into a total part in the return stroke.
  • the positive and non-positive connection between the two parts is achieved by suitable shaping or by using undercuts that a sufficient mutual Ensure mechanical connection to handle the already separated parts again as a single assembly part in the production.
  • Fig. 7 In the illustration after Fig. 7 are collar part 5 and lid receiving part 10 in the manner already explained tightly and permanently connected to the metallic can lid part and the snap-locking connection is engaged. The tightness is ensured by the up to the bead edge extending film 26.
  • the tear line 4 is formed by the dividing line between the interlocking protrusions 32 and recesses 33.
  • the tear line defining projections 32 and recesses 33 are disengaged, but no weakened metal areas under chip formation must be separated from each other, but only the existing positive connection must be solved, which is possible with much less effort than requires the rupture of a still existing metallic connection between the two parts to be separated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Packages (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Finger-Pressure Massage (AREA)
EP19185029.6A 2015-07-29 2016-04-01 Dosendeckel Active EP3569516B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015112428.9A DE102015112428A1 (de) 2015-07-29 2015-07-29 Dosendeckel
EP16713897.3A EP3310675B8 (de) 2015-07-29 2016-04-01 Dosendeckel
PCT/EP2016/057225 WO2017016686A1 (de) 2015-07-29 2016-04-01 Dosendeckel

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP16713897.3A Division EP3310675B8 (de) 2015-07-29 2016-04-01 Dosendeckel
EP16713897.3A Division-Into EP3310675B8 (de) 2015-07-29 2016-04-01 Dosendeckel

Publications (2)

Publication Number Publication Date
EP3569516A1 true EP3569516A1 (de) 2019-11-20
EP3569516B1 EP3569516B1 (de) 2024-06-26

Family

ID=55650420

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16713897.3A Active EP3310675B8 (de) 2015-07-29 2016-04-01 Dosendeckel
EP19185029.6A Active EP3569516B1 (de) 2015-07-29 2016-04-01 Dosendeckel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16713897.3A Active EP3310675B8 (de) 2015-07-29 2016-04-01 Dosendeckel

Country Status (26)

Country Link
US (1) US10273044B2 (zh)
EP (2) EP3310675B8 (zh)
JP (2) JP6993331B2 (zh)
KR (1) KR102064556B1 (zh)
CN (2) CN111498242B (zh)
AU (2) AU2016299451B2 (zh)
BR (2) BR122020014563B1 (zh)
CA (1) CA2993111C (zh)
CY (1) CY1122379T1 (zh)
DE (1) DE102015112428A1 (zh)
DK (1) DK3310675T3 (zh)
EA (1) EA034671B1 (zh)
ES (1) ES2756651T3 (zh)
HK (1) HK1255253A1 (zh)
HR (1) HRP20192025T1 (zh)
HU (1) HUE046475T2 (zh)
LT (1) LT3310675T (zh)
MA (2) MA47272A (zh)
MX (2) MX2018001235A (zh)
PL (1) PL3310675T3 (zh)
PT (1) PT3310675T (zh)
RS (1) RS59535B1 (zh)
SA (1) SA518390811B1 (zh)
SI (1) SI3310675T1 (zh)
WO (1) WO2017016686A1 (zh)
ZA (1) ZA201800318B (zh)

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EP3680191B1 (de) 2017-04-05 2023-05-03 Gregor Anton Piech Verfahren zur herstellung einer öffnung in einem flächigen blechmaterial
ES2772730T3 (es) 2017-04-05 2020-07-08 Gregor Anton Piech Recipiente para conservar de manera herméticamente estanca productos, en particular alimentos
EP3395707B8 (de) 2017-04-26 2021-10-06 Speira GmbH Getränkedose aus einheitlicher aluminiumlegierung
EP3546199A1 (de) 2018-03-28 2019-10-02 Top Cap Holding GmbH Verfahren zum herstellen eines dosendeckels aus einem verbundmaterial
EP3584191A1 (de) * 2018-06-19 2019-12-25 Top Cap Holding GmbH Metallischer dosendeckel
HUE061227T2 (hu) 2018-06-19 2023-05-28 Top Cap Holding Gmbh Eljárás fémbõl készült dobozfedél elõállítására
PL3590860T3 (pl) * 2018-07-04 2021-12-13 Xolution Gmbh Pokrywa puszki do wielokrotnego zamykania
DE102019004542A1 (de) 2019-06-24 2020-12-24 Gert Löwe Dosendeckel mit einer dicht wiederverschließbaren Trinköffnung
US11299334B2 (en) 2019-09-05 2022-04-12 Sonoco Development, Inc. Membrane lid with integrated two-stage tab system
DE102021106980A1 (de) 2021-03-22 2022-09-22 Ardagh Metal Packaging Europe Gmbh Deckelelement für einen Getränkebehälter und Verschlussanordnung für einen Getränkebehälter
DE102022129183A1 (de) * 2022-11-04 2024-05-08 Top Cap Holding Gmbh Dosendeckel
DE102022129193A1 (de) * 2022-11-04 2024-05-08 Top Cap Holding Gmbh Dosendeckel

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CN108025831A (zh) 2018-05-11
PL3310675T3 (pl) 2020-02-28
HK1255253A1 (zh) 2019-08-09
ZA201800318B (en) 2018-12-19
EP3569516B1 (de) 2024-06-26
CN111498242A (zh) 2020-08-07
MA47272A (fr) 2019-11-20
AU2019272001A1 (en) 2019-12-19
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DK3310675T3 (da) 2019-10-14
CY1122379T1 (el) 2021-01-27
MA43506B1 (fr) 2019-12-31
ES2756651T3 (es) 2020-04-27
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CA2993111C (en) 2021-02-16
EP3310675B8 (de) 2019-10-09
JP6993331B2 (ja) 2022-01-13
BR112018001839B1 (pt) 2022-01-11
EP3310675B1 (de) 2019-09-04
AU2019272001B2 (en) 2021-01-07
RS59535B1 (sr) 2019-12-31
EA034671B1 (ru) 2020-03-04
BR122020014563B1 (pt) 2022-05-10
EP3310675A1 (de) 2018-04-25
HUE046475T2 (hu) 2020-03-30
BR112018001839A2 (pt) 2018-09-18
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US20180016058A1 (en) 2018-01-18
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US10273044B2 (en) 2019-04-30
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