EP1205393B1 - Couvercle de boíte et sa méthode de fabrication - Google Patents

Couvercle de boíte et sa méthode de fabrication Download PDF

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Publication number
EP1205393B1
EP1205393B1 EP01121410A EP01121410A EP1205393B1 EP 1205393 B1 EP1205393 B1 EP 1205393B1 EP 01121410 A EP01121410 A EP 01121410A EP 01121410 A EP01121410 A EP 01121410A EP 1205393 B1 EP1205393 B1 EP 1205393B1
Authority
EP
European Patent Office
Prior art keywords
lid
membrane
ring
ring flange
lid membrane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01121410A
Other languages
German (de)
English (en)
Other versions
EP1205393A3 (fr
EP1205393A2 (fr
Inventor
Rainer Dr. Sauer
Werner Erfgen
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.)
ThyssenKrupp Rasselstein GmbH
Original Assignee
Rasselstein 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 Rasselstein GmbH filed Critical Rasselstein GmbH
Publication of EP1205393A2 publication Critical patent/EP1205393A2/fr
Publication of EP1205393A3 publication Critical patent/EP1205393A3/fr
Application granted granted Critical
Publication of EP1205393B1 publication Critical patent/EP1205393B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D17/4011—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 completely by means of a tearing 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/08—Flexible adhesive strips adapted to seal filling or discharging apertures
    • 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
    • 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
    • B65D2517/008—Materials of container end panel
    • B65D2517/0082—Coated or laminated metal
    • 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
    • B65D2517/5043—Details of preformed openings provided with a flange
    • B65D2517/5051—Up-turned flange, i.e. extending away from container
    • B65D2517/5054—Up-turned flange, i.e. extending away from container rolled or folded back, e.g. to avoid sharp edges

Definitions

  • the invention relates to a can lid according to the preamble of claim 1.
  • the invention further relates to a method for producing a can lid according to the preamble of claim 5.
  • Can lids according to the preamble of claim 1 are known in the art, For example, DE 196 20 448 A1, known.
  • Such can lids consist of a Lid ring obtained by deep drawing and blanking from a coated sheet blank, e.g. made of tinplate, chromed sheet metal or aluminum.
  • On the outer edge of the Cover ring is a mecanicbördel provided for later formation of a double fold and the inner edge of the cover ring has an annular flange having a lid opening encloses.
  • the annular flange for example, by a flattened curl of the inner edge of the cover ring are formed.
  • a can lid with a cover ring and a in Known this compressible lid membrane is here on your rolled up the outer end and this curl lies on the rolled-up inner edge of the cover ring.
  • the inner edge region of the cover ring is here rolled over so that the inner end surface of the cover ring rests against the outside thereof.
  • the edge region of a cover membrane for example, by Heat-sealing or adhesive bonding on the surface facing away from the inside of the can attached to the annular flange.
  • the cover membrane thus closes the lid opening, which extends over the entire, enclosed by the narrow cover ring surface.
  • the sheet metal blank from which the cover ring and the Cover membrane are made coated on both sides. If the attachment of the Cover membrane is made on the annular flange of the cover ring by means of heat sealing, is the Sheet metal blank coated on one side with a heat-sealable coating and on the other side provided with a protective varnish.
  • the cover membrane and the cover ring by punching and Forming formed from the sheet metal blank. The punching process produces end-side Cut surfaces on the outer circumference of the cover membrane and the inner circumference and Outer circumference of the cover ring. These cut surfaces are not covered with a coating provided so that they are exposed to corrosion.
  • the can lids produced by the known method tend to especially during long storage, for corrosion on the end faces of the Cover ring and the cover membrane.
  • the end-side end face of the cover membrane has sharp edges, which during the Removing the cover membrane from the cover ring can lead to injury.
  • the present invention is therefore based on the object, a can lid of the to provide the type mentioned above, which in ordinary handling can not cause injury and is resistant to corrosion.
  • the partial cross section of Figure 1 shows the left edge region of a can lid. Of the Can lid in the plan view, not shown here, a round or square or oval Have shape.
  • the can lid consists of a cover ring 1 and a cover membrane 2.
  • the illustrated in the cross section of Figure 1 left portion 13 of the cover ring 1 is used for Forming an outer crest and forming a double fold, with which the Cover ring is attachable to the can body.
  • the Jardinbördel or formed from it Doppelfalz is not shown in Figure 1.
  • the process steps for fixing the Cover ring on the can body are described for example in DE 196 20 448 A1.
  • the cover ring 1 has an annular flange 4. This is formed, by the inner edge region of the cover ring towards the outside of the can, that is to say in FIG. 1 rolled up, and then flattened.
  • the annular flange 4 thus formed surrounds a lid opening 5.
  • the lid opening 5 is closed by a cover membrane 2.
  • the cover membrane 2 is for this purpose with its outer edge region on the side facing the outside of the can 8 attached to the annular flange 4.
  • the attachment can be done by gluing, welding or Heat sealing done.
  • the outer edge 9 of the cover membrane 2 is folded so that the end face 3 of the cover membrane shows radially inward.
  • the cover membrane 2 is attached to the annular flange 4 of the cover ring 2, that the folded edge portion. 9 the annular flange 4 encloses radially. Furthermore, the folded-over edge region 9 is downwards pressed, so that the end face 3 of the cover membrane on the end face 6 of the Ring flange 4 abuts on impact.
  • a can with such a can lid is first the Cover ring fixed in a known manner by forming a double fold on the can body. Subsequently, the can is filled with the contents and the lid opening through the Cover membrane closed.
  • the process for producing a Can lid according to claim 5 comprises both alternatives in the order of Steps to close the can.
  • Lid ring 1 and cover membrane 2 are preferably made by punching and forming formed on both sides organically coated sheet metal blank.
  • a deep-drawn sheet metal blank When deep drawing is a formed by a participatedbördel surrounded flat cup, the bottom part and in the has substantially perpendicular to standing wall part.
  • the outer hanger serves for Formation of a double fold for the later attachment of the cover ring on the can body.
  • essentially the entire bottom part is in the immediate vicinity of his Transition punched out to the wall part, to form the lid ring, whose at Punching resulting inner cut surface surrounds the lid opening 5.
  • the lid ring After that it will be Wall part partially bent outwards to form a curl. This curl is then flattened to form the annular flange 4.
  • the punched-out bottom part is then folded over in the edge region 9, so that the end face 3 points radially inward.
  • the thus formed bottom part forms the cover membrane 2 for closing the Lid opening 5.
  • the folded edge portion 9 of the cover membrane 2 Before or during the Fixing operation is the folded edge portion 9 of the cover membrane 2 so pressed on, that the end face 3 of the cover membrane on the end face 6 of the annular flange abutting on impact.
  • the attachment of the cover membrane 2 on the upper side 8 of the annular flange 4 takes place advantageously over the entire upper surface of the annular flange 4.
  • the attachment by heat sealing For this purpose, the sheet metal blank, from which cover ring. 1 and cover membrane 2 are made, one-sided with a heat-sealable coating Mistake. The orientation is chosen so that the heat sealable coating. 7 on the top 8 of the annular flange 4 comes to rest. Accordingly, the Cover membrane 2 oriented so that the heat-sealable coating towards the inside of the can has, so in Figure 1 down.
  • the heat-sealable coating 7 by heat and Pressure viscous and can in the narrow space between the end faces 3, 6 of the annular flange and the cover membrane flow.
  • the heat sealing on the one hand Cover membrane 2 pressed on the upper side 8 of the annular flange 4 and on the other hand also the folded edge region 9 of the cover membrane 2 down and radially inward pressed.
  • the end-side end face 3 of the lid membrane 2 pressed against the end face 6 of the annular flange 4.
  • the end faces 3, 6 are protected from corrosion because neither moisture nor Air oxygen can come to the originally unsealed faces.
  • the cover membrane 2 at the upper side 14 pointing towards the outside of the can Tear tab 10 is preferred.
  • the attachment of the tear tab 10 is preferably carried out by Laser welding. However, the tear tab 10 can also be soldered or glued to the Cover membrane 2 are attached. By manual pull on this tear tab 10 is first of the folded edge portion 9 of the cover membrane 2 lifted off the cover ring 1 and then the area attached to the annular flange 4 region of the cover membrane 2 deducted.
  • the thus deducted cover membrane 2 has no sharp edges along its circumference more, because the edge region 9 is folded over. Therefore, the withdrawn lid membrane 2 do not lead to cuts.
  • the can lid thus formed further has the advantage that it due to the mutual contact of the end faces 3, 6 of the cover membrane and the annular flange this Front surfaces against contact with humidity and oxygen and thus against corrosion protects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (8)

  1. Couvercle de boíte métallique, constitué d'une bague de couvercle (1) et d'une membrane de couvercle présentant une face frontale terminale (3), la bague de couvercle (1) présentant sur son bord intérieur un collet annulaire (4) réalisé sous forme d'enroulement aplati et entourant une ouverture (5), collet dont la face frontale terminale (6) est dirigée radialement vers l'extérieur, et la membrane de couvercle (2) étant assemblée à plat ou de manière surfacique au collet annulaire (4) afin de fermer l'ouverture (5), caractérisé en ce que la région de bord (9) de la membrane de couvercle (2) est repliée en direction du collet annulaire (4), et les faces frontales (3, 6) de la membrane de couvercle (2) et du collet annulaire (4) s'appliquent l'une contre l'autre en aboutement.
  2. Couvercle de boíte métallique selon la revendication 1, caractérisé en ce que la bague de couvercle (1) et la membrane de couvercle (2) sont formées par découpage et mise en forme d'une ébauche de tôle revêtue sur les deux faces.
  3. Couvercle de boíte métallique selon la revendication 2, caractérisé en ce que l'ébauche de tôle présente sur une face un revêtement thermosoudable (7), et la membrane de couvercle (2) est fixée par thermosoudage au collet annulaire (4), sur la face supérieure (8) de ce dernier, opposée à l'intérieur de la boíte métallique.
  4. Couvercle de boíte métallique selon l'une des revendications précédentes, caractérisé en ce qu'une patte de déchirage (10) est fixée par soudage au laser sur la région de bord repliée (9) de la membrane de couvercle (2), sur la face supérieure (8) opposée à l'intérieur de la boíte métallique.
  5. Procédé de fabrication d'un couvercle de boíte métallique qui présente une bague de couvercle (1) et une membrane de couvercle (2) dotée d'une face frontale terminale (3), la bague de couvercle (1) pouvant être fixée sur le corps de boíte et présentant un collet annulaire (4) réalisé sur son bord intérieur sous forme d'enroulement aplati et entourant une ouverture (5), collet dont la face frontale (6) est dirigée radialement vers l'extérieur, et la membrane de couvercle (2) pouvant être assemblée à plat au collet annulaire (4) afin de fermer l'ouverture (5), caractérisé par les étapes suivantes :
    repliage de la région de bord (9) de la membrane de couvercle (2), de sorte que la face frontale (3) est dirigée radialement vers l'intérieur ;
    pose de la membrane de couvercle (2) sur le collet annulaire (4) avec la région de bord repliée (9) dirigée vers le collet annulaire (4), de sorte que la région de bord repliée (9) entoure le collet annulaire (4) ;
    fixation de la membrane de couvercle (2) sur la face supérieure (8), opposée à l'intérieur de la boíte métallique, du collet annulaire (4), la région de bord repliée (9) de la membrane de couvercle (2) étant, avant ou pendant la fixation, pressée de telle sorte que les arêtes frontales (3, 6) du collet annulaire (4) et de la membrane de couvercle (2) viennent en application mutuelle.
  6. Procédé selon la revendication 5, caractérisé en ce que la bague de couvercle (1) et la membrane de couvercle (2) sont formées par découpage et mise en forme d'une ébauche de tôle revêtue sur les deux faces.
  7. Procédé selon la revendication 6, caractérisé en ce que l'ébauche de tôle est revêtue sur une face d'un revêtement thermosoudable (7), et la fixation de la membrane de couvercle (2) s'effectue par thermosoudage.
  8. Procédé selon la revendication 7, caractérisé en ce que, lors du thermosoudage, le revêtement thermosoudable (7) est liquéfié et pressé entre les arêtes frontales (3, 6) de la membrane de couvercle (2) et du collet annulaire (4).
EP01121410A 2000-11-09 2001-09-07 Couvercle de boíte et sa méthode de fabrication Expired - Lifetime EP1205393B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10055527A DE10055527C2 (de) 2000-11-09 2000-11-09 Dosendeckel
DE10055527 2000-11-09

Publications (3)

Publication Number Publication Date
EP1205393A2 EP1205393A2 (fr) 2002-05-15
EP1205393A3 EP1205393A3 (fr) 2003-12-03
EP1205393B1 true EP1205393B1 (fr) 2005-05-04

Family

ID=7662688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01121410A Expired - Lifetime EP1205393B1 (fr) 2000-11-09 2001-09-07 Couvercle de boíte et sa méthode de fabrication

Country Status (6)

Country Link
US (1) US6601727B2 (fr)
EP (1) EP1205393B1 (fr)
AT (1) ATE294745T1 (fr)
CA (1) CA2361443A1 (fr)
DE (2) DE10055527C2 (fr)
ES (1) ES2240294T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20215848U1 (de) * 2002-10-11 2004-02-26 Huber Verpackungen Gmbh + Co. Kg Dose für UV-härtende Druckfarben
DE20215847U1 (de) * 2002-10-11 2004-02-26 Huber Verpackungen Gmbh + Co. Kg Dose für UV-härtende Druckfarben
US7055713B2 (en) * 2002-11-12 2006-06-06 Sonoco Development, Inc. Easy-opening closure for retortable container
US20070164045A1 (en) * 2006-01-13 2007-07-19 Wydler Hans L Dual mode container
DK1878666T3 (da) * 2006-07-13 2010-12-13 Impress Metal Packaging Sa Beholderlåg, som er forsynet med en aftrækkelig membran
EP2321189B1 (fr) * 2008-06-03 2017-08-09 Valspar Sourcing, Inc. Contenant à ouverture aisée et revêtement de contenant
ES2405319T3 (es) * 2008-11-10 2013-05-30 Crown Packaging Technology, Inc Cierre para recipiente y procedimiento de formación del mismo
WO2012072383A1 (fr) * 2010-11-29 2012-06-07 Crown Packaging Technology, Inc. Fermeture
EP3279105A1 (fr) * 2016-08-02 2018-02-07 Amcor Flexibles Singen GmbH Bague de couvercle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765352A (en) * 1972-03-27 1973-10-16 Fraze Ermal C Combined can and end with means for protecting against severed score
CH572847A5 (fr) * 1973-12-17 1976-02-27 Rausing Anders Ruben
GB1536543A (en) * 1975-01-13 1978-12-20 Metal Box Co Ltd Containers
GB1577739A (en) * 1976-04-09 1980-10-29 Metal Box Co Ltd Containers
DE2933547A1 (de) * 1979-07-26 1981-03-12 Schweizerische Aluminium AG, 3965 Chippis Verfahren zur herstellung eines deckelringes und eines deckels.
US4445621A (en) * 1983-03-28 1984-05-01 Stoffel Technologies, Inc. Easy-open container wall
CH674829A5 (fr) 1987-12-14 1990-07-31 Alcan Rorschach Ag
DE19620448C2 (de) * 1996-05-21 2001-07-05 Rasselstein Hoesch Gmbh Verfahren zur Herstellung eines leicht zu öffnenden Dosendeckels
DE19629148C2 (de) * 1996-07-19 2002-10-24 Mars Inc Verfahren zur Herstellung eines befüllten Behälters
DE29821514U1 (de) * 1998-12-02 2000-04-13 Rasselstein Hoesch GmbH, 56626 Andernach Leicht zu öffnender Dosendeckel

Also Published As

Publication number Publication date
US20020053571A1 (en) 2002-05-09
EP1205393A3 (fr) 2003-12-03
DE50106093D1 (de) 2005-06-09
ES2240294T3 (es) 2005-10-16
US6601727B2 (en) 2003-08-05
CA2361443A1 (fr) 2002-05-09
ATE294745T1 (de) 2005-05-15
EP1205393A2 (fr) 2002-05-15
DE10055527A1 (de) 2002-05-29
DE10055527C2 (de) 2002-10-17

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