EP0218096B1 - Deckel aus Blech für unrunde Dosen, insb. langovale Dosen im Hansa-Format - Google Patents

Deckel aus Blech für unrunde Dosen, insb. langovale Dosen im Hansa-Format Download PDF

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Publication number
EP0218096B1
EP0218096B1 EP86112196A EP86112196A EP0218096B1 EP 0218096 B1 EP0218096 B1 EP 0218096B1 EP 86112196 A EP86112196 A EP 86112196A EP 86112196 A EP86112196 A EP 86112196A EP 0218096 B1 EP0218096 B1 EP 0218096B1
Authority
EP
European Patent Office
Prior art keywords
score line
tear
beads
chord
approximately
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
Application number
EP86112196A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0218096A1 (de
Inventor
Ag Schmalbach-Lubeca
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.)
Ardagh Metal Packaging Germany GmbH
Original Assignee
Schmalback Lubeca 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
Application filed by Schmalback Lubeca AG filed Critical Schmalback Lubeca AG
Priority to AT86112196T priority Critical patent/ATE38193T1/de
Publication of EP0218096A1 publication Critical patent/EP0218096A1/de
Application granted granted Critical
Publication of EP0218096B1 publication Critical patent/EP0218096B1/de
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
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions

Definitions

  • the invention relates to a lid made of sheet metal for non-round cans, in particular long oval cans in Hansa format with the features of the preamble of claim 1.
  • Such a cover is known from GB-A.:1 207 769.
  • the tear-off part points in the start section and in End area of the lid on differently oriented beads.
  • beads running transversely to the tear-open direction ensure that during the initial break-in and tear-open the start section can no longer bulge around an axis that runs parallel to the tear-open direction.
  • the transverse beads facilitate the unrolling of the sheet when the starting section is torn, which can more or less bend along the transverse beads.
  • the beads run parallel to the opening direction or at an acute angle to this opening direction, which prevents the sheet from unrolling in the end section of the opening part and stiffens this part like a board.
  • This is intended to facilitate and improve the safe handling of the tear-open part in the last phase of the tear-open process and during the moment in which the tear-off part is separated from the can (cf. also DE-A-2 909 076, FIG. 1).
  • Similar measures are also known for lids for cans of circular cross-section (cf. US-A-3,478,918).
  • the person opening the can must release the force on the tear-open part and bring the sheet metal to break through slight pivoting movements of the tear-open part around the chord-shaped notch line section. This automatically ensures that no greater springback capacity is stored in the tearing part at the moment of the separation process. This largely eliminates the risk of splashing the contents of the can as well as the risk of injury to the person.
  • the two outer beads of the bead group are preferably oriented towards the end points of the chord-shaped notch line section in accordance with the teaching of claim 2. In this way, the breaking process along the score line to the end points is carried out safely, since the bead ends are close to the transition point between the end points and the adjacent score line sections. At the same time, it is ensured that, even in the end point areas, deformation of the sheet during the last separation process is largely excluded.
  • the cover can be made of aluminum sheet or other thin sheet. It is a lid with a long oval outline, which is widely used for fish cans in the so-called Hansa format. It can be sheets of small thickness, in particular less than 0.24 mm.
  • the cover 1 has a flanged edge 2 which merges into the cover mirror 3 via a core wall.
  • a tearing part 6 is delimited by a self-contained score line 7, the course of which deviates from the course of the core wall.
  • the score line has a start section 8 at the left end of FIG. 2, in the vicinity of which a handle tab 5 of conventional design is fastened by means of a rivet 4 formed from the sheet metal.
  • the score line diverges from the break-open start line 8 into two straight sections 9, which delimit the entire start section 16 of the tear-open part 6.
  • two transverse beads 21, 22 are formed, which have increasing length in the tear direction.
  • a flat recess 20 of approximately square outline is provided, which is delimited by a corresponding shoulder.
  • On both sides of the depression 20 extend parallel to the two outer notch line sections 10 beads 26, 27, which run parallel to the longitudinal center line 19 of the cover and the core wall.
  • the beads 26, 27 can be arranged at substantially the same distance from the score line 10 or from the shoulder delimiting the depression 20.
  • the distance 33 between the beads 26 and 27 and the score line sections 10 is as small as possible in the preferred embodiment and corresponds at most to the bead width (31).
  • the beads 26 and 27 end in the end region 18 of the tear-open part 6 directly in the region of a transition point between the notch line sections 12 and 13, namely at a short distance of a few millimeters.
  • the score line sections 12 and 13 belong to a polygonal train of individual, straight score line sections 11, 12 and 13 which are connected via points 14 to the lateral straight score line sections 10 and determine the end region 18 of the tear-open part 6.
  • the middle section 11 of this polygonal train consists of a notch line 11 which runs in a chord-like manner with respect to the arcuate core wall and whose straight length 38 corresponds to approximately half the total width 39 of the tearing part 6.
  • the score line section 11 is at a distance from the core wall, measured on the longitudinal center line 19, which can be between 2 and 15 mm and is preferably about 10 mm.
  • the beads each having the same length 36 and the same distribution are assigned to this middle straight or chord-shaped notch line section 11 in the end region 18 of the tear-open part 6.
  • the two outer beads 25a and 25d have a mutual center distance approximately equal to the length 38 of the chord-shaped notch line section 11, that is to say that their longitudinal center lines 38a are almost flush with the end points 15 of the notch line section 11.
  • the beads preferably have a completely uniform distribution over the length 38 of the notch line section 11.
  • the bead width 31 in the preferred exemplary embodiment shown is approximately equal to the width 32 of the undeformed sheet metal region lying between adjacent beads.
  • the length 36 of the beads 25 is also the same, this length in the preferred embodiment according to FIG.
  • the beads 25 project beyond the connecting line between the transition points 14 in the direction of the starting section.
  • the beads 26 and 27 in the end region 18 of the tearing part fit harmoniously into the bead distribution of the bead group 25a to 25d.
  • the beads 25 to 27 each have the same width and the same undeformed intermediate areas.
  • the beads extend as far as possible to the polygonal score line in the end region 18 of the tearing part.
  • the distance 30 of the end products of the beads 25 to the chord-shaped notch line section 11 is between approximately 1 mm and approximately 7 mm and is preferably smaller than the width 31 of the beads and is approximately 0.5 mm to approximately 3 mm in the preferred exemplary embodiment shown.
  • the bead distribution in conjunction with the polygonal course of the score line in the end region 18 of the tear-open part 6 ensures particularly safe handling when opening when the tear-off part is detached from the rest of the cover plate. Due to the ribs and the resulting stiffening, the tear-open force is aligned parallel to the longitudinal center line 19 of the cover without special attention when opening, the tear-open process automatically ending at the end points 15 of the tendon-shaped notch line section 11, so that an unexpected resilient tearing off of the tear-off part is excluded is.
  • the final separation process is carried out extremely securely by the uniform stiffening of the cover plate, so that uniform separation is also ensured by moving the tearing part back and forth about the hinge axis formed by the tendon-shaped notch line section 11.
  • the new measures make the handling of the tear-open part much easier and more convenient when opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Wrappers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Image Generation (AREA)
  • Radiation-Therapy Devices (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Vacuum Packaging (AREA)
  • Packages (AREA)
  • Details Of Indoor Wiring (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Table Devices Or Equipment (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
EP86112196A 1985-10-02 1986-09-03 Deckel aus Blech für unrunde Dosen, insb. langovale Dosen im Hansa-Format Expired EP0218096B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112196T ATE38193T1 (de) 1985-10-02 1986-09-03 Deckel aus blech fuer unrunde dosen, insb. langovale dosen im hansa-format.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853535226 DE3535226A1 (de) 1985-10-02 1985-10-02 Deckel aus blech fuer unrunde dosen, insb. langovale dosen im hansa-format
DE3535226 1985-10-02

Publications (2)

Publication Number Publication Date
EP0218096A1 EP0218096A1 (de) 1987-04-15
EP0218096B1 true EP0218096B1 (de) 1988-10-26

Family

ID=6282606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112196A Expired EP0218096B1 (de) 1985-10-02 1986-09-03 Deckel aus Blech für unrunde Dosen, insb. langovale Dosen im Hansa-Format

Country Status (17)

Country Link
US (1) US4690297A (da)
EP (1) EP0218096B1 (da)
JP (1) JPS62122945A (da)
KR (1) KR910000162B1 (da)
AT (1) ATE38193T1 (da)
AU (1) AU588359B2 (da)
BR (1) BR8604748A (da)
CA (1) CA1266625A (da)
DD (1) DD252164A5 (da)
DE (2) DE3535226A1 (da)
DK (1) DK166956B1 (da)
ES (1) ES2002174A6 (da)
IS (1) IS1367B6 (da)
NO (1) NO169113C (da)
PL (1) PL148335B3 (da)
PT (1) PT83477B (da)
SU (1) SU1431672A3 (da)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430382A1 (de) * 1984-08-17 1986-02-27 Schmalbach-Lubeca AG, 3300 Braunschweig Deckel aus blech, insb. langovale dosen im z.b. hansaformat
US5248053A (en) * 1990-02-02 1993-09-28 Lundgren James F Operating lever for beverage container lever operated opener
GB2242281A (en) * 1990-03-21 1991-09-25 Ford Motor Co Security test device
USD405010S (en) * 1994-11-03 1999-02-02 Schmalbach-Lubeca Ag Can lid
USD422911S (en) * 1998-09-22 2000-04-18 Weirton Steel Corporation Rigid sheet metal end closure with integral opener
USD425419S (en) * 1998-09-22 2000-05-23 Weirton Steel Corporation Rigid sheet metal end closure with integral opener
GEP20063995B (en) * 2002-08-14 2006-12-11 Firestar Ag Fuel tin
US7270246B2 (en) * 2004-08-20 2007-09-18 Stolle Machinery Company, Llc Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same
FR2945794A1 (fr) * 2009-05-20 2010-11-26 Impress Group Bv Couvercle metallique pour un corps de contenant avec moulure(s)de rigidification
NO339217B1 (no) * 2013-07-09 2016-11-14 Flaax Holding As Åpner
USD902712S1 (en) * 2017-11-02 2020-11-24 O. Kleiner Ag Lid for a preserve can
FR3088913B1 (fr) * 2018-11-27 2021-07-02 Ardagh Mp Group Netherlands Bv Couvercle pour un corps de contenant, en particulier pour un contenant du genre boîte de conserve
FR3088914B1 (fr) * 2018-11-27 2020-11-20 Ardagh Mp Group Netherlands Bv Couvercle pour un corps de contenant, en particulier pour un contenant du genre boîte de conserve
GB2580900B (en) * 2019-01-23 2021-05-19 Crown Packaging Technology Inc Can end with ribs to increase panel stiffness

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441171A (en) * 1968-03-11 1969-04-29 Continental Can Co Easy-opening container panel structure
DE1761867C3 (de) * 1968-07-16 1979-06-07 Schmalbach-Lubeca-Gmbh, 3300 Braunschweig Aufreißdeckel aus Blech, insbesondere für Konservendosen
US3478918A (en) * 1968-08-14 1969-11-18 American Can Co Full open end closure
US3591037A (en) * 1969-02-24 1971-07-06 Aluminum Co Of America Container with removable panel portion
DE1959353A1 (de) * 1969-11-26 1971-06-03 Leckermaeulchen Fischkonserven Nietverbindung zwischen Grifflasche und Aufreissflaeche von Behaeltern,Dosen od.dgl.
US3682350A (en) * 1970-02-18 1972-08-08 Dorn Co V Easy opening rectangular metal container
US3653536A (en) * 1970-08-31 1972-04-04 Aluminum Co Of America Easy opening device for a rectangular container end
US3735892A (en) * 1970-10-26 1973-05-29 American Can Co Full open end having chordal start tear score sections
DE2909076C2 (de) * 1979-03-08 1984-01-26 Schmalbach-Lubeca Gmbh, 3300 Braunschweig Menüdose
DE3430382A1 (de) * 1984-08-17 1986-02-27 Schmalbach-Lubeca AG, 3300 Braunschweig Deckel aus blech, insb. langovale dosen im z.b. hansaformat
DE3607402A1 (de) * 1986-03-06 1987-09-10 Schmalbach Lubeca Aufreissdeckel aus metall fuer dosen

Also Published As

Publication number Publication date
NO169113C (no) 1992-05-13
AU588359B2 (en) 1989-09-14
US4690297A (en) 1987-09-01
IS1367B6 (is) 1989-05-25
NO863909L (no) 1987-04-03
JPH0329667B2 (da) 1991-04-24
BR8604748A (pt) 1987-06-30
KR870003923A (ko) 1987-05-06
DK166956B1 (da) 1993-08-09
KR910000162B1 (ko) 1991-01-21
NO863909D0 (no) 1986-10-01
SU1431672A3 (ru) 1988-10-15
AU6233686A (en) 1987-04-09
PT83477A (de) 1986-11-01
DE3535226C2 (da) 1987-11-12
DK466286A (da) 1987-04-03
PL261616A1 (en) 1987-09-07
PL148335B3 (en) 1989-10-31
NO169113B (no) 1992-02-03
DK466286D0 (da) 1986-09-30
ATE38193T1 (de) 1988-11-15
CA1266625A (en) 1990-03-13
IS3137A7 (is) 1987-04-03
EP0218096A1 (de) 1987-04-15
ES2002174A6 (es) 1988-07-16
DE3535226A1 (de) 1987-04-16
JPS62122945A (ja) 1987-06-04
DD252164A5 (de) 1987-12-09
DE3660999D1 (en) 1988-12-01
PT83477B (pt) 1993-01-29

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