EP0209031B1 - 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 PDFInfo
- Publication number
- EP0209031B1 EP0209031B1 EP86109223A EP86109223A EP0209031B1 EP 0209031 B1 EP0209031 B1 EP 0209031B1 EP 86109223 A EP86109223 A EP 86109223A EP 86109223 A EP86109223 A EP 86109223A EP 0209031 B1 EP0209031 B1 EP 0209031B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- wall
- tin
- cut
- edge
- 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
Links
Images
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 a device 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 tear points. According to the invention, the aim is achieved by the features described in claim 3.
- a web in the membrane according to the invention is 3 to 50%, preferably 10 to 15% of the cut long, 3, preferably 6 to about 12, in particular 8 to 10 cuts and webs being provided depending on the diameter of the membrane. 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 person skilled in the art, depending in particular on the material thickness and rigidity of the membrane, as well as 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 tear points which, when used in tension, actually maintain the sealing of the covering part tear. It is particularly expedient if 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 die and a die are used, each having a circumferential shear edge for producing the cuts, which are preferably distributed evenly around the circumference is interrupted by recesses.
- a similar method and device is described in US Pat. No. 3,859,942, but there in a different field (a closure cap intended for closing a bottle from the outside and preformed from thin sheet metal is provided with circumferential cuts in order to unscrew it manually the cap by the consumer tearing off between the Allow cuts remaining webs in the tangential direction).
- This document therefore does not even correspond to the generic term of the method and device according to the invention and therefore could not offer the inventor any indication of the achievement of the object of the invention.
- the deep-drawing die 6 has a shaft 7 at the top for clamping in the tool.
- the stamp itself is a disk-like tool part which contains a drawing radius 12 on the end face 13; 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 approximately 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 When starting up, the die 10 first hits the hold-down 15 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 point A in FIG. 1.
- FIG. 7 where the cut 9 has interrupted the cut, this corresponds to FIG. This results in only an offset of the membrane film 14 in the wall 2.
- the manufacture takes place in such a way that when the tool is closed plate 1, wall 2 and flange 3 are initially formed, at the same time the wall 2 is Z-shaped in cross section and in the final phase of the closing movement by shear edges 8 and 11 the longitudinal slots 5 get cut.
- 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 produced in one operation, at the same time cutting the longitudinal slots 5 and cranking or kinking the webs 4 and possibly even reducing their cross section, at least in part, thereby forming the desired predetermined crack locations.
- the conventional membrane according to FIG. 9 in turn suffers from the fact that the adhesion of the two membrane layers in the overlap region (3a, 3i) should be less than in the vertical (21a, 21i) and horizontal (14a, 14i) closure region.
- the open end face 16 of the completely sealed 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 19, 19 '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 that the previous predetermined breaking points 4 (Fig. 1) are torn. This is usually done under tensile stress 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)
Claims (7)
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 |
---|---|---|---|
CH2995/85A CH668754A5 (de) | 1985-07-10 | 1985-07-10 | Verfahren zum verschliessen eines dosenartigen behaelters mittels einer membran. |
CH2995/85 | 1985-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0209031A1 EP0209031A1 (fr) | 1987-01-21 |
EP0209031B1 true 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) |
Families Citing this family (11)
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 |
ATE495984T1 (de) * | 2003-03-18 | 2011-02-15 | Werner Grabher | Dose mit einem folienverschluss |
AU2006219982B8 (en) * | 2005-03-01 | 2011-12-08 | Crown Packaging Technology, Inc | Can for packaging food |
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 |
DE102006011748B4 (de) * | 2006-03-13 | 2011-03-10 | Abro Weidenhammer Gmbh | Verpackungsbehälter mit einer ausreißbaren Dichtmembran sowie Verfahren zu seiner Herstellung |
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 |
PL2052984T3 (pl) * | 2007-10-25 | 2011-05-31 | Impress Group Bv | Sposób przygotowywania i formowania wieczka oraz wieczko |
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 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH537843A (de) * | 1970-12-14 | 1973-06-15 | Zeiler Ag | Verschlusseinrichtung an einer Dose, mit entfernbarer Membran und Verfahren zu deren Herstellung |
US3746202A (en) * | 1971-06-01 | 1973-07-17 | Continental Can Co | Die forming and perforating pilfer-proof band of closure caps |
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 |
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 | |
EP0007487B1 (fr) * | 1978-07-10 | 1981-11-11 | Del Bon, Franco | Boîte scellée et élément de fermeture préformé ainsi que procédé et dispositifs pour leur fabrication |
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 |
DE3212990A1 (de) * | 1981-04-08 | 1982-11-04 | Weidenhammer Packungen KG GmbH & Co, 6832 Hockenheim | Verfahren zur herstellung einer verschlussmembran fuer behaelter |
US4691834A (en) * | 1982-07-12 | 1987-09-08 | Bankers Trust Company | Cap and neck structure for a wide mouth jar |
-
1985
- 1985-07-10 CH CH2995/85A patent/CH668754A5/de not_active IP Right Cessation
-
1986
- 1986-07-06 DE DE8686109223T patent/DE3660328D1/de not_active Expired
- 1986-07-06 AT AT86109223T patent/ATE35246T1/de not_active IP Right Cessation
- 1986-07-06 EP EP86109223A patent/EP0209031B1/fr not_active Expired
- 1986-07-08 US US06/883,306 patent/US4744484A/en not_active Expired - Lifetime
- 1986-07-08 AU AU60010/86A patent/AU594963B2/en not_active Ceased
- 1986-07-08 DK DK325086A patent/DK165400C/da not_active IP Right Cessation
- 1986-07-09 ES ES8600216A patent/ES2000657A6/es not_active Expired
- 1986-07-09 ZA ZA865110A patent/ZA865110B/xx unknown
- 1986-07-09 CA CA000513416A patent/CA1274479A/fr not_active Expired - Fee Related
- 1986-07-09 IN IN506/CAL/86A patent/IN163660B/en unknown
- 1986-07-10 JP JP61162898A patent/JPS6264730A/ja active Pending
-
1987
- 1987-11-25 US US07/125,370 patent/US4842468A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IN163660B (fr) | 1988-10-22 |
CA1274479A (fr) | 1990-09-25 |
US4842468A (en) | 1989-06-27 |
ZA865110B (en) | 1987-02-25 |
US4744484A (en) | 1988-05-17 |
AU594963B2 (en) | 1990-03-22 |
JPS6264730A (ja) | 1987-03-23 |
DK165400B (da) | 1992-11-23 |
DE3660328D1 (en) | 1988-07-28 |
EP0209031A1 (fr) | 1987-01-21 |
AU6001086A (en) | 1987-01-15 |
ES2000657A6 (es) | 1988-03-16 |
DK325086A (da) | 1987-01-11 |
ATE35246T1 (de) | 1988-07-15 |
CH668754A5 (de) | 1989-01-31 |
DK165400C (da) | 1993-04-05 |
DK325086D0 (da) | 1986-07-08 |
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