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EP0209031A1 - Boîte, ainsi que le procédé et la membrane pour sa fermeture - Google Patents

Boîte, ainsi que le procédé et la membrane pour sa fermeture Download PDF

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Publication number
EP0209031A1
EP0209031A1 EP86109223A EP86109223A EP0209031A1 EP 0209031 A1 EP0209031 A1 EP 0209031A1 EP 86109223 A EP86109223 A EP 86109223A EP 86109223 A EP86109223 A EP 86109223A EP 0209031 A1 EP0209031 A1 EP 0209031A1
Authority
EP
European Patent Office
Prior art keywords
membrane
wall
cut
edge
plate
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
EP86109223A
Other languages
German (de)
English (en)
Other versions
EP0209031B1 (fr
Inventor
Werner Grabher
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.)
Grabher INDOSA-Maschinenbau AG
Original Assignee
Grabher INDOSA-Maschinenbau AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4246282&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0209031(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Grabher INDOSA-Maschinenbau AG filed Critical Grabher INDOSA-Maschinenbau AG
Priority to AT86109223T priority Critical patent/ATE35246T1/de
Publication of EP0209031A1 publication Critical patent/EP0209031A1/fr
Application granted granted Critical
Publication of EP0209031B1 publication Critical patent/EP0209031B1/fr
Expired 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane

Definitions

  • the invention relates to a can according to the preamble of claim 1; a method of making the can; a membrane for closing them; and finally a method and an apparatus for producing the membrane.
  • the invention therefore has among other things the task of creating a can of the type mentioned, which avoids the disadvantages mentioned and can be implemented in practice. This succeeds through the measures proposed in the characterizing part of claim 1.
  • a can constructed in this way is easy to manufacture and offers no problems when tearing open, but a smooth and clean covering part.
  • a method is to be created with which the can can be closed in the simplest possible manner, preferably in a single work step, while achieving the desired advantages. This is done by the measures defined in the characterizing part of claim 2.
  • the object of the invention is further to provide a membrane for closing cans or the like.
  • Containers that can be created in one operation and still ensure easy opening by means of suitable predetermined breaking points.
  • the aim is achieved in that cuts and webs are alternately formed in the wall along a circumferential line.
  • a web in the membrane according to the invention is about 1 to about 30%, preferably 3 to 20%, in particular 5 to 15% of the cut long, 3, preferably 6 to about 12, in particular 8 to 10 cuts and webs depending on the diameter of the membrane are to be provided. Fewer (longer) cuts and / or shorter bars endanger the processability of the membrane when gluing into the can, since the long cuts tend to pull apart. More (shorter) cuts and / or longer bars result in bigger problems when tearing open. The right choice can easily be made by any specialist, depending in particular on the material thickness and rigidity of the membrane, and on the tolerances of the can.
  • the predetermined tear line is above half the height of the wall, e.g. runs in the upper third.
  • they are preferably already pre-bent and / or even weakened in their thickness - at least over a part of their width, so that they form predetermined cracking points which, when used in tension, actually maintain the sealing of the covering part tear.
  • the webs have an approximately spindle-shaped cross section, for example by are squeezed or cut to zero thickness at both ends bordering the respective cuts.
  • a deep-drawing stamp and egg ne die used each have a circumferential shear edge for making the cuts. At least the shear edge of a tool part is interrupted at locations that are preferably evenly distributed around the circumference.
  • the membrane shows in perspective a finished (circular) membrane 14 (for a can of round cross-section).
  • the membrane consists of a plate 1, the side wall 2 and the radially projecting flange 3.
  • the longitudinal slots 5 which are evenly distributed on the circumference and are delimited by webs 4, are arranged.
  • Sections A and B are also specified, which are shown in section in one of the corresponding drawings (FIG. 1A, FIG. 1B). It can be seen how the longitudinal slots 5 and the webs 4 are arranged.
  • the material thickness of the membrane can be, for example, 40 to 60 microns.
  • the deep-drawing die 6 has a shaft 7 at the top for clamping in the tool.
  • the stamp itself is a wedge-like tool part that contains a drawing radius 12 on the end face l3; the cylindrical drawing edge ends in a shear edge 8. This is arranged in the areas A and can be seen from the associated section (FIG. 2A).
  • the recess 9 is arranged in the regions B. Only the shear edge 8 is interrupted here, namely with a depth of about 100 microns and an inclination of 25 to 60 degrees as seen from the longitudinal axis.
  • the width of the recess 9 corresponds to the desired width of a web 4.
  • FIG. 3 shows the die 10. It is an annular tool which has a shear edge 11 on its inside, which may have interruptions, but which are not shown in FIG. 3. This can also be seen from the fact that sections A and B (FIGS. 3A, 3B) are identical.
  • the membrane film 14 which is prepared as a flat disk, lies over the die 10.
  • the hold-down 15, which is guided on the deep-drawing die 6, is designed as a ring.
  • the drawing contour 12 can also be seen here, the shearing edge 8 being shown in FIG. 4 and the interruption thereof being shown by the recess 9 in FIG. 5.
  • FIG. 6 and 7 show the tool in the closed position.
  • the die 10 first meets the hold-down 15 in the high-bay reindeer and immediately surrounds the deep-drawing die 6.
  • the membrane film 14 is now converted into the plate 1, the wall 2 and the flange 3.
  • FIG. 6 shows that the finished membrane is cut open laterally is. This corresponds to position A in FIG. 1 Fig. 7, where an interruption of the cut was generated by the recess 9. This results in only an offset of the membrane film 14 in the wall 2.
  • shear edges 8 and 11 have only a slight overlap, in the order of 100 to 200 microns. This ensures that the membrane can be created in one operation, at the same time cutting the longitudinal slots 5 and cranking or kinking the webs 4 and possibly even - at least partially - reducing their cross section, as a result of which the desired predetermined breaking points are formed.
  • the conventional membrane according to FIG. 9 in turn suffers from the fact that the adhesion of the two membrane layers in the Coverage area (3a, 3i) should be less than in the vertical (21a, 21i) and horizontal (14a, 14i) closure area.
  • the open end face 16 of the completely closed can 17 according to FIG. 10 (FIG. 10a, FIG. 10b), on the other hand, is encompassed by the now separated, circular flange 3 of the membrane 14.
  • the upper end l9, l9 'of the cylindrical wall 21 is arranged from the lower end 23,23' of the inner leg of the flange 3 at a small distance a, which is chosen to be just large enough to tear the former predetermined breaking points 4 (FIG. 1) are.
  • a which is chosen to be just large enough to tear the former predetermined breaking points 4 (FIG. 1) are.
  • Under tensile stress there is usually a smooth tearing off, in contrast to the conventional peeling stress when opening the can, in which, as mentioned at the beginning, the inner leg of the flange 3 can often become frayed.
  • a membrane other than the one according to the invention if it only has a predetermined cracking point running over the circumference of its cylindrical wall part, can also be used to produce the can according to the invention, although the membrane according to the invention is preferred because of its ease of manufacture.
  • the heat-sealing layer 24 connects during the closing and tearing-off process to the inner can coating 18, of which an undamaged peripheral strip 22 is retained after the webs 4 (FIG. 1) have been torn off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Diaphragms And Bellows (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Glass Compositions (AREA)
  • Prostheses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
EP86109223A 1985-07-10 1986-07-06 Boîte, ainsi que le procédé et la membrane pour sa fermeture Expired EP0209031B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109223T ATE35246T1 (de) 1985-07-10 1986-07-06 Dose, sowie verfahren und membran zu ihrem verschliessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2995/85 1985-07-10
CH2995/85A CH668754A5 (de) 1985-07-10 1985-07-10 Verfahren zum verschliessen eines dosenartigen behaelters mittels einer membran.

Publications (2)

Publication Number Publication Date
EP0209031A1 true EP0209031A1 (fr) 1987-01-21
EP0209031B1 EP0209031B1 (fr) 1988-06-22

Family

ID=4246282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109223A Expired EP0209031B1 (fr) 1985-07-10 1986-07-06 Boîte, ainsi que le procédé et la membrane pour sa fermeture

Country Status (12)

Country Link
US (2) US4744484A (fr)
EP (1) EP0209031B1 (fr)
JP (1) JPS6264730A (fr)
AT (1) ATE35246T1 (fr)
AU (1) AU594963B2 (fr)
CA (1) CA1274479A (fr)
CH (1) CH668754A5 (fr)
DE (1) DE3660328D1 (fr)
DK (1) DK165400C (fr)
ES (1) ES2000657A6 (fr)
IN (1) IN163660B (fr)
ZA (1) ZA865110B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006092364A3 (fr) * 2005-03-01 2006-11-30 Crown Packaging Technology Inc Boite d'emballage et procede et appareil pour sa fabrication
DE102006011748B4 (de) * 2006-03-13 2011-03-10 Abro Weidenhammer Gmbh Verpackungsbehälter mit einer ausreißbaren Dichtmembran sowie Verfahren zu seiner Herstellung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH658034A5 (de) * 1985-04-09 1986-10-15 Elpatronic Ag Aufreissbares dosenteil.
JPH01267157A (ja) * 1988-04-07 1989-10-25 Showa Denko Kk 缶様容器蓋およびその製法
DE502004012126D1 (de) * 2003-03-18 2011-03-03 Werner Grabher Dose mit einem folienverschluss
US7757879B2 (en) * 2005-11-29 2010-07-20 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method of making same
US7703625B2 (en) * 2006-11-15 2010-04-27 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method for making same
US20080283529A1 (en) 2007-05-17 2008-11-20 Sonoco Development, Inc. Container Lid Formed as a Laminate Having a Built-In Opening Feature, and Container Incorporating Same
DE602007011290D1 (de) * 2007-10-25 2011-01-27 Impress Group Bv Verfahren zum Ausbilden eines Deckels und Deckel
EP2574558A1 (fr) * 2011-09-30 2013-04-03 Crown Packaging Technology, Inc Procédé pour la fermeture de boîtes métalliques
FR3013628B1 (fr) * 2013-11-27 2016-07-01 Guillaume Sireix Procede d'assemblage de corps tubulaires en materiau cartonne avec une structure obturante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118077A1 (fr) * 1970-12-14 1972-07-28 Zeiler Ag
US3859942A (en) * 1971-06-01 1975-01-14 Continental Can Co Apparatus for and method of die forming and perforating pilfer-proof band of closure caps
EP0007487A1 (fr) * 1978-07-10 1980-02-06 Del Bon, Franco Boîte scellée et élément de fermeture préformé ainsi que procédé et dispositifs pour leur fabrication
DE3212990A1 (de) * 1981-04-08 1982-11-04 Weidenhammer Packungen KG GmbH & Co, 6832 Hockenheim Verfahren zur herstellung einer verschlussmembran fuer behaelter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746202A (en) * 1971-06-01 1973-07-17 Continental Can Co Die forming and perforating pilfer-proof band of closure caps
US3741142A (en) * 1972-03-27 1973-06-26 Procter & Gamble Method of making a tear open closure
GB1473828A (en) * 1973-05-03 1977-05-18 Dresser Europe Sa Seven-segment display arrangement and liquid fuel dispensing pump embodying the same
IN149917B (fr) * 1978-04-10 1982-05-29 Akerlund & Rausing Ab
CH639342A5 (en) * 1979-02-17 1983-11-15 Bon F Del Preformed closure element for sealing a can and method for its manufacture
CH636820A5 (de) * 1979-06-18 1983-06-30 Sandherr Max Ag Dosenverschluss.
SE429036B (sv) * 1979-12-17 1983-08-08 Haustrup Plastic As Behallare med en forslutningsdel
US4691834A (en) * 1982-07-12 1987-09-08 Bankers Trust Company Cap and neck structure for a wide mouth jar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118077A1 (fr) * 1970-12-14 1972-07-28 Zeiler Ag
US3859942A (en) * 1971-06-01 1975-01-14 Continental Can Co Apparatus for and method of die forming and perforating pilfer-proof band of closure caps
EP0007487A1 (fr) * 1978-07-10 1980-02-06 Del Bon, Franco Boîte scellée et élément de fermeture préformé ainsi que procédé et dispositifs pour leur fabrication
DE3212990A1 (de) * 1981-04-08 1982-11-04 Weidenhammer Packungen KG GmbH & Co, 6832 Hockenheim Verfahren zur herstellung einer verschlussmembran fuer behaelter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006092364A3 (fr) * 2005-03-01 2006-11-30 Crown Packaging Technology Inc Boite d'emballage et procede et appareil pour sa fabrication
US8746488B2 (en) 2005-03-01 2014-06-10 Crown Packaging Technology, Inc. Packaging can and method and apparatus for its manufacture
EP2143509A3 (fr) * 2005-03-01 2015-12-09 Crown Packaging Technology, Inc. Méthode et dispositif de fabrication d'un boîtier en métal
US9895737B2 (en) 2005-03-01 2018-02-20 Crown Packaging Technology, Inc. Packaging can and method and apparatus for its manufacture
DE102006011748B4 (de) * 2006-03-13 2011-03-10 Abro Weidenhammer Gmbh Verpackungsbehälter mit einer ausreißbaren Dichtmembran sowie Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
CA1274479A (fr) 1990-09-25
AU594963B2 (en) 1990-03-22
DK325086D0 (da) 1986-07-08
ZA865110B (en) 1987-02-25
JPS6264730A (ja) 1987-03-23
CH668754A5 (de) 1989-01-31
DK325086A (da) 1987-01-11
US4744484A (en) 1988-05-17
AU6001086A (en) 1987-01-15
US4842468A (en) 1989-06-27
DK165400B (da) 1992-11-23
DE3660328D1 (en) 1988-07-28
DK165400C (da) 1993-04-05
EP0209031B1 (fr) 1988-06-22
ATE35246T1 (de) 1988-07-15
IN163660B (fr) 1988-10-22
ES2000657A6 (es) 1988-03-16

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