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EP0171650A2 - Tinplate cover for containers with an elongate oval section, in particular for "Hansa-format" containers - Google Patents

Tinplate cover for containers with an elongate oval section, in particular for "Hansa-format" containers Download PDF

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Publication number
EP0171650A2
EP0171650A2 EP85109047A EP85109047A EP0171650A2 EP 0171650 A2 EP0171650 A2 EP 0171650A2 EP 85109047 A EP85109047 A EP 85109047A EP 85109047 A EP85109047 A EP 85109047A EP 0171650 A2 EP0171650 A2 EP 0171650A2
Authority
EP
European Patent Office
Prior art keywords
lid
notch line
tear
section
open 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
EP85109047A
Other languages
German (de)
French (fr)
Other versions
EP0171650A3 (en
EP0171650B1 (en
Inventor
Peter Höft
Wolfgang Peter
Heinz Hacke
Jürgen Lühr
Johann Bergsteiner
Wolfgang Drobe
Fritz Engelke
Walter Hebbinghaus
Siegfried Kuhnert
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 AT85109047T priority Critical patent/ATE39662T1/en
Publication of EP0171650A2 publication Critical patent/EP0171650A2/en
Publication of EP0171650A3 publication Critical patent/EP0171650A3/en
Application granted granted Critical
Publication of EP0171650B1 publication Critical patent/EP0171650B1/en
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
    • 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

Definitions

  • the invention relates to a lid made of sheet metal for non-round cans, in particular long oval cans in e.g. Hansa format, with the features of the preamble of claim 1.
  • Lids of this type are of very large practical use and are used to close elongated, generally circular-shaped cans with a small height at the ends.
  • lids are generally designed as full tear-open lids, i.e. that after removal of the tear-open part, essentially the area of the cover mirror is exposed over practically its entire extent. Restrictions on this must be accepted to a certain extent for production-technical reasons and for reasons of the safe and easy opening of the tear-open part.
  • the tear-open part of the lid is relatively unstable and thus has a higher storage capacity for spring forces, so that it is often difficult to open such a can by the consumer without splashing the contents allow.
  • the tear force in the last third of the tear region is reduced to a great extent.
  • the result is less bulging of the tear-open part and less springback force stored in the sheet. This effect can be enhanced by a special arrangement and formation of beads or other deformations in this area.
  • the straight notch line section becomes a hinge-like line with a length that is greatly reduced compared to the width of the tear-open part.
  • the board-like end section can be swung back and forth around the line without great effort. It can be released without problems and without the tendency to spring back. This function can be further secured by increasing the remaining wall thickness in the straight notch line section, since this prevents tearing during the opening process. Such tearing leads to a strong rebound of the sheet. Opening by tearing ends at the end points of the straight notch line sections.
  • the residual wall thickness in the straight notch line section is approximately 20% to 70% larger than in the other sections.
  • the length of the chord-shaped notch line section should take up a noticeable part of the maximum width of the tear-open part.
  • the length of the chord-shaped notch line section arranged perpendicularly and symmetrically to the longitudinal center line of the cover is approximately equal to half the greatest width of the tear-open part. This applies especially to covers in Hansa format.
  • the end points of the straight notch line section can be connected to the corresponding end points of the straight notch line sections running on the long sides of the cover via a notch line region which runs in an arcuate manner or approximately parallel to the curvature of the cover outline.
  • the connecting notch line is preferably also straight, in particular tendon-shaped, in relation to the course of the core wall in the end region of the cover, the connection being able to be realized by one or more tendon-shaped notch line sections running at different inclinations to the longitudinal center line of the cover.
  • chord-shaped notch line and the lid core wall are also decisive for the length of the chord-shaped section.
  • the distance from the core wall still favors the splash-free breaking off of the tear-open part from the can.
  • the lid 1 for a can of Hansa format has the long oval outline typical of this format and, as usual, has a steep core wall 3 adjacent to the edge surfaces 2, which merges into the lid mirror 6.
  • a tear-open part 26 which takes up by far the largest part of the cover mirror and is determined by one or more score lines 10.
  • the notch line 10 is self-contained and runs on the long sides of the cover at a short distance and parallel to the core wall and in these areas consists of the straight notch line sections 12 and 13. Converge at one of the ends of the cover mirror 6 determined by the circular arc shape of the core wall 3 the score line areas to a start section 11 located near the core wall.
  • a lever-shaped grip tab 5 is fastened lying flat on the cover mirror by means of rivet 4, one end of which lies above the start section 11 of the score line, while the other end is designed as a grapple end 7 is in the direction of the longitudinal center line 8 of the cover.
  • the tear-open part in the region of the grip tab, can have two or more than two beads 9 and 9a, which extend transversely to the longitudinal center line E and are designed to be straight or slightly curved. Also in the remaining areas, the tear-open part 26 has stiffening deformations 29 and / or beads 28, which in the example shown are arranged parallel to the long sides and parallel to one another and to the longitudinal center line 8 and are distributed over the width of the tear-open part.
  • the score line has a tendon to the arcuate shape of the core wall 3 straight-running notch line section 14. In the example shown, this is arranged perpendicularly and symmetrically to the longitudinal center line 8. Measured on the longitudinal center line 8, the chord-shaped notch line section 14 is at a distance 20 from the core wall 3 which is between 2 and 15 mm. This distance is preferably between 6 and 10 mm. The length 21 of the chord-shaped notch line section between its end points 17 is preferably approximately half the maximum width 25 of the tear-open part 26.
  • the end points 17 of the chord-shaped notch line section 14 are connected to the associated end points 18 of the rectilinear notch line section 12, 13 parallel to the long side of the cover via connecting notch line sections. These can be curved, optionally also follow the circular arc shape of the core wall 3. However, this connecting notch line is preferably also rectilinear and has a tendon shape and is arranged in relation to the arc-shaped core wall. The end points 17 and 18 can thus be directly connected by a single straight-line Ke b line. In the preferred example shown, however, the connecting score line consists of two tendon-shaped sections 15 and 16, which are e-Weil straight and have different inclinations to the longitudinal center line 8.
  • the score line most expediently shows a polygonal profile, as is illustrated in FIG. 2. This does not rule out that the transitions at the polygonal corners are each formed by sections with a very small radius of curvature.
  • the sections 15, 16 of the connecting score line can be the same size or different sizes.
  • the chord-shaped notch line section 14 has a greater residual wall thickness than the remaining regions of the notch line 10. It can be 20% to 70% larger than the remaining wall thickness of the normal notch line. Deformations and / or beads 28, 29 are provided to support the board-like effect on the tendon-shaped notch line section 14.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Springs (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Window Of Vehicle (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

There is provided a tin lid for flat cans rounded oblong, in Hansa format, which includes in its lid image section, a tear-open portion defined by a self-contained notch line capable of being broken up at one end of the lid by means of a pull-open ring attached to this end. At the other end, said notch line includes a straight-lined notch line section which extends in chordal-type fashion with respect to the core wall shaped like an arc of a circle and which is arranged perpendicular and symmetrically to the longitudinal lid center line and which is connected with the other portions of the notch line through a polygonal or chordal-type connecting notch line. The distance between the chordal-type notch line section and the core wall, measured along the longitudinal center line of the lid, preferably ranges between 6 and 10 mm.

Description

Die Erfindung betrifft einen Deckel aus Blech für unrunde Dosen, insb. langovale Dosen im z.B. Hansa-Format, mit den Merkmalen des Oberbegriffs des Anspruchs 1. Solche Deckel sind in sehr großem Umfange im praktischen Gebrauch und dienen zum Verschließen von langgestreckten, an den Enden kreisbogenförmig abgerundeten Dosen mit in der Regel geringer Höhe. Zur erleichterten Entnahme des Inhaltes sind derartige Deckel im allgemeinen als Vollaufreißdeckel ausgebildet, d.h. daß nach Entfernen des Aufreißteils im wesentlichen der Bereich des Deckelspiegels über praktisch seine ganze Ausdehnung freigelegt ist.Einschränkungen hierzu müssen in gewissem Umfange aus produktionstechnischen Gründen in Kauf genommen werden sowie aus Gründen des sicheren und leichten Öffnens des Aufreißteils.The invention relates to a lid made of sheet metal for non-round cans, in particular long oval cans in e.g. Hansa format, with the features of the preamble of claim 1. Lids of this type are of very large practical use and are used to close elongated, generally circular-shaped cans with a small height at the ends. To facilitate removal of the contents, such lids are generally designed as full tear-open lids, i.e. that after removal of the tear-open part, essentially the area of the cover mirror is exposed over practically its entire extent. Restrictions on this must be accepted to a certain extent for production-technical reasons and for reasons of the safe and easy opening of the tear-open part.

Da die Dosen sowie die Deckel der oben beschriebenen Art heutzutage aus dünnem Blech hergestellt werden, ist der Aufreißteil des Deckels relativ labil und besitzt somit ein höheres Speichervermögen für Federkräfte, so daß es häufig Schwierigkeiten bereitet, eine solche Dose vom Verbraucher ohne Spritzen des Inhaltes öffnen zu lassen.Since the cans and the lids of the type described above are nowadays made of thin sheet metal, the tear-open part of the lid is relatively unstable and thus has a higher storage capacity for spring forces, so that it is often difficult to open such a can by the consumer without splashing the contents allow.

Bei einer seit Jahren auf dem Markt befindlichen Dose der eingangs genannten Art sind zur Erleichterung des Öffnungsvorganges und zur Milderung der aufgezeigten Probleme an dem die Grifflasche aufnehmenden Ende und an dem entgegengesetzten Ende des Aufreißteils des Deckels unterschiedliche und verschieden orientierte Sickengruppen vorgesehen, wobei die Sicken im Bereich der Grifflasche im wesentlichen senkrecht zur Längsmittellinie der Dose und geradlinig oder leicht gebogen ausgebildet und angeordnet sind, während im Endbereich des Aufreißteils mehrere Sicken parallel zur Längsmittellinie bzw. unter einem spitzen Winkel zur Aufreißrichtung orientiert sind. Dadurch soll das Abrollen des Bleches am Aufreißanfang des Aufreißteils erleichtert werden, während am Aufreißende durch die Sicken eine annähernd brettartige, steife Ausbildung angestrebt ist. Die Erfindung betrifft insb. solche Deckel mit unterschiedlichen Verformungen oder Sicken im Grifflaschenbereich und Endbereich.In a can of the type mentioned at the market that has been on the market for years, to facilitate the opening process and to alleviate the problems indicated, different and differently oriented bead groups are provided at the end receiving the grip tab and at the opposite end of the tear-open part of the lid, the beads in The area of the grip tab is formed and arranged essentially perpendicular to the longitudinal center line of the can and in a straight line or slightly curved, while in the end area of the tear-open part are oriented parallel to the longitudinal center line or at an acute angle to the tear direction. This is intended to facilitate the unrolling of the sheet at the start of the tear-open part, while at the end of the tear through the beads, an approximately board-like, rigid design is sought. The invention relates in particular to such lids with different deformations or beads in the handle flap area and end area.

Die langjährigen Erfahrungen mit Deckeln dieser bekannten Art zeigen, daß bei den heute üblichen Blechen und Blechdicken noch immer nicht vollständig auszuschließen ist, daß in der letzten Phase des Abtrennens des Aufreißteils vom Deckel dasherausgerissene Deckelteil (Aufreißteil) unkontrolliert nachfedert, dadurch in den Doseninhalt eintauchen kann und somit Soße mit herausreißt und verspritzt. Selbst nur am Deckelteil haftende Soßenteile können durch die Nachfederungswirkung verspritzen.Many years of experience with lids of this known type show that, with today's sheet metal and sheet thicknesses, it cannot be completely ruled out that in the last phase of tearing off the tear-off part from the lid, the torn-off lid part (tear-open part) springs back uncontrollably, and can thus be immersed in the contents of the can and thus rips out sauce and sprinkles. Even sauce parts sticking to the lid part can splash due to the resilience effect.

Dies gilt sowohl bei Dosen des Hansa-Formates, bei denen, wie oben erwähnt, die Endbereiche der Dose halbkreisförmig gebogen sind, so daß die Dose im wesentlichen einen ovalen Umriß aufweist, wie auch bei anderen unrunden Dosen.This applies both to cans of the Hansa format, in which, as mentioned above, the end regions of the can are bent in a semicircular shape so that the can has an essentially oval outline, as well as to other non-round cans.

Bei den bekannten Dosen dieser Art weicht der Verlauf der Kerblinie lediglich in dem Bereich, an dem die Grifflasche angebracht ist, von der Umrißform der Dose ab, während im übrigen an allen Stellen die Kerblinie in geringem Abstand von der Deckelkernwand und parallel zu dieser verläuft, was auch für das von der Grifflasche abgewandte Ende des Deckels giltIn the known cans of this type, the course of the score line only deviates from the outline shape of the can in the area to which the grip tab is attached, while the score line runs at all points at a short distance from the lid core wall and parallel to it, which also applies to the end of the lid facing away from the handle tab

Es ist Aufgabe der Erfindung bei einer Dose mit den Merkmalen des Oberbegriffs des Anspruchs 1 den Deckel so weiterzubilden, daß die Gefahr des Verspritzens oder auch der Verletzung an der Reißkante des Aufreißteils in der letzten Phase des Abtrennvorgangesdes Aufreißteils von der Dose noch wesentlich stärker und zuverlässiger gebannt werden kann, als dies bisher möglich ist, um so die Handhabung der Dose beim Öffnen wesentlich zu erleichtern.It is an object of the invention to develop the lid in a can with the features of the preamble of claim 1 in such a way that the risk of splashing or injury at the tear edge of the tear-open part in the last phase of the detachment process of the tear-open part from the can, it can be banned even more strongly and reliably than has been possible hitherto, so that the handling of the can when opening is considerably easier.

Diese Aufgabe wird durch die Maßnahmen des Anspruchs 1 gelöst.This object is achieved by the measures of claim 1.

Aufgrund der neuen Ausbildung, insb. bei polygonalem Verlauf der an den geradlinigen, insb. sehnenförmigen Abschnitt anschließenden Kerblinienbereiche, wird in hohem Maße die Weiterreißkraft im letzten Drittel des Aufreißbereiches reduziert. Die Folge ist ein geringeres Auswölben des Aufreißteils und eine geringere im Blech gespeicherte Rückfederungskraft. Diese Wirkung kann durch eine besondere Anordnung und Ausbildung von Sicken oder anderen Verformungen in diesem Bereich noch verstärkt werden.Due to the new design, especially in the case of a polygonal course of the notch line regions adjoining the straight, in particular tendon-shaped section, the tear force in the last third of the tear region is reduced to a great extent. The result is less bulging of the tear-open part and less springback force stored in the sheet. This effect can be enhanced by a special arrangement and formation of beads or other deformations in this area.

Der geradlinige Kerblinienabschnitt wird zu einer scharnierartigen Linie von gegenüber der Breite des Aufreißteils stark reduzierter Länge. Um die Linie kann der brettartige Endabschnitt ohne großen Kraftaufwand etwa einmal hin- und hergeschwenkt werden. Er löst sich so ohne Probleme und ohne die Neigung zum Nachfedern. Diese Funktion kann durch Vergrößerung der Restwanddicke in dem geradlinigen Kerblinienabschnitt noch weiter gesichert werden, da diese ein Durchreißen beim Öffnungsvorgang verhindert. Ein solches Durchreißen führt zu einem starken Nachfedern des Bleches. Das Öffnen durch einen Reißvorgang endet an den Endpunkten der geradlinigen Kerblinienabschnitte.The straight notch line section becomes a hinge-like line with a length that is greatly reduced compared to the width of the tear-open part. The board-like end section can be swung back and forth around the line without great effort. It can be released without problems and without the tendency to spring back. This function can be further secured by increasing the remaining wall thickness in the straight notch line section, since this prevents tearing during the opening process. Such tearing leads to a strong rebound of the sheet. Opening by tearing ends at the end points of the straight notch line sections.

Vorteilhaft ist es, wenn die Restwanddicke im geradlinigen Kerblinienabschnitt um etwa 20% bis 70% größer als in den übrigen Abschnitten ist.It is advantageous if the residual wall thickness in the straight notch line section is approximately 20% to 70% larger than in the other sections.

Die Länge des sehnenförmigen Kerblinienabschnittes soll einen merklichen Teil der maximalen Breite des Aufreißteils einnehmen. Vorzugsweise ist die Länge des senkrecht und symmetrisch zur Längsmittellinie des Deckels angeordneten sehnenförmigen Kerblinienabschnittes etwa gleich der Hälfte der größten Breite des Aufreißteils. Dies gilt vor allem für Deckel im Hansa-Format.The length of the chord-shaped notch line section should take up a noticeable part of the maximum width of the tear-open part. The length of the chord-shaped notch line section arranged perpendicularly and symmetrically to the longitudinal center line of the cover is approximately equal to half the greatest width of the tear-open part. This applies especially to covers in Hansa format.

Die Endpunkte des geradlinigen Kerblinienabschnittes können mit den entsprechenden Endpunkten der an den Längsseiten des Deckels verlaufenden geradlinigen Kerblinienabschnitten über einen Kerblinienbereich verbunden sein, der bogenförmig oder etwa parallel zur Krümmung des Deckelumrisses verläuft. Vorzugsweise ist jedoch die Verbindungskerblinie ebenfalls gegenüber dem Verlauf der Kernwand im Endbereich des Deckels geradlinig, insb. sehnenförmig ausgebildet, wobei die Verbindung durch einen oder mehrere unter unterschiedlicher Neigung zur Längsmittellinie des Deckel verlaufenden sehnenförmigen Kerblinienabschnitten verwirklicht sein kann. Dadurch werden die Weiterreißkräfte abgebaut und ein stärkeres Einrollen des Aufreißteils und seine stärkere Rückfederung vermieden.The end points of the straight notch line section can be connected to the corresponding end points of the straight notch line sections running on the long sides of the cover via a notch line region which runs in an arcuate manner or approximately parallel to the curvature of the cover outline. However, the connecting notch line is preferably also straight, in particular tendon-shaped, in relation to the course of the core wall in the end region of the cover, the connection being able to be realized by one or more tendon-shaped notch line sections running at different inclinations to the longitudinal center line of the cover. As a result, the tear forces are reduced and a stronger curling of the tear-open part and its stronger springback are avoided.

Der Abstand zwischen der sehnenförmigen Kerblinie und der Deckelkernwand, gemessen längs der Mittellinie ist mit maßgeblich für die Länge des sehnenförmigen Abschnittes. Der Abstand von der Kernwand begünstigt aber weiterhin das spritzfreie Abbrechen des Aufreißteils von der Dose.The distance between the chord-shaped notch line and the lid core wall, measured along the center line, is also decisive for the length of the chord-shaped section. However, the distance from the core wall still favors the splash-free breaking off of the tear-open part from the can.

Die Erfindung wird nachfolgen anhand schematischer Zeichnungen an einem Ausführungsbeispiel näher erläutert.The invention will be explained in more detail with reference to schematic drawings of an embodiment.

Es zeigen:

  • Figur 1 einen Deckel im Hansa-Format im Längsschnitt, der gemäß der Erfindung ausgebildet ist und
  • Figur 2 den Deckel in Draufsicht.
Show it:
  • Figure 1 shows a cover in Hansa format in longitudinal section, which is designed according to the invention and
  • Figure 2 shows the lid in plan view.

Der Deckel 1 für eine Dose vom Hansa-Format weist gemäß Fig. 2 den für dieses Format typischen langovalen Umriß und wie üblich, an den Randflächen 2 angrenzend eine steile Kernwand 3 auf, die in den Deckelspiegel 6 übergeht. In dem Deckelspiegel 6 ist ein den weitaus größten Teil des Deckelspiegels einnehmender Aufreißteil 26 vorgesehen, der von einer oder mehreren Kerblinien 10 bestimmt wird. Die Kerblinie 10 ist in sich geschlossen und verläuft an den Längsseiten des Deckels im geringen Abstand und parallel zur Kernwand und besteht in diesen Bereichen aus den geradlinigen Kerblinienabschnitten 12 und 13. An einem der durch den kreisbogenförmigen Verlauf der Kernwand 3 bestimmtem Ende des Deckelspiegels 6 konvergieren die Kerblinienbereiche zu einem nahe der Kernwand liegenden Startabschnitt 11. In diesem Bereich des Aufreißteils ist mittels Niet 4 eine hebelförmige Grifflasche 5 flach aufliegend auf dem Deckelspiegel befestigt, deren eines Ende über dem Startabschnitt 11 der Kerblinie liegt, während das andere Ende als Graffende 7 ausgebildet ist, das in Richtung der Längsmittellinie 8 des Deckels weist.2, the lid 1 for a can of Hansa format has the long oval outline typical of this format and, as usual, has a steep core wall 3 adjacent to the edge surfaces 2, which merges into the lid mirror 6. In the cover mirror 6 there is provided a tear-open part 26 which takes up by far the largest part of the cover mirror and is determined by one or more score lines 10. The notch line 10 is self-contained and runs on the long sides of the cover at a short distance and parallel to the core wall and in these areas consists of the straight notch line sections 12 and 13. Converge at one of the ends of the cover mirror 6 determined by the circular arc shape of the core wall 3 the score line areas to a start section 11 located near the core wall. In this area of the tear-open part, a lever-shaped grip tab 5 is fastened lying flat on the cover mirror by means of rivet 4, one end of which lies above the start section 11 of the score line, while the other end is designed as a grapple end 7 is in the direction of the longitudinal center line 8 of the cover.

Im Bereich der Grifflasche kann der Aufreißteil gemäß dem dargestellten Beispiel zwei oder mehr als zwei quer zur Längsmittellinie E verlaufende Sicken 9 und 9a aufweisen, die geradlinig oder schwach gebogen ausgebildet sind. Auch in den übrigen Bereichen weist das Aufreißteil 26 Versteifungsverformungen 29 und/oder -sicken 28 auf, die im dargestellten Beispiel parallel zu den Längsseiten und parallel zueinander und zur Längsmittellinie 8 angeordnet und über die Breite des Aufreißteils verteilt sind.In the region of the grip tab, the tear-open part according to the example shown can have two or more than two beads 9 and 9a, which extend transversely to the longitudinal center line E and are designed to be straight or slightly curved. Also in the remaining areas, the tear-open part 26 has stiffening deformations 29 and / or beads 28, which in the example shown are arranged parallel to the long sides and parallel to one another and to the longitudinal center line 8 and are distributed over the width of the tear-open part.

An dem von dem Kerblinien-Startabschnitt 11 abgewandten Ende des Aufreißteils 26 weist die Kerblinie einen zu dem kreisbogenförmigen Verlauf der Kernwand 3 sehnenförmig verlaufenden geradlinigen Kerblinienabschnitt 14 auf. Dieser ist im dargestellten Beispiel senkrecht und symmetrisch zur Längsmittellinie 8 angeordnet. Gemessen auf der Längsmittellinie 8 weist der sehnenförmige Kerblinienabschnitt 14 von der Kernwand 3 einen Abstand 20 auf, der zwischen 2 und 15 mm liegt. Vorzugsweise liegt dieser Abstand zwischen 6 und 10mm. Die Länge 21 des sehnenförmigen Kerblinienabschnittes zwischen seinen Endpunkten 17 beträgt vorzugsweise etwa die Hälfte der maximalen Breite 25 des Aufreißteils 26.At the end of the tear-open part 26 facing away from the score line start section 11, the score line has a tendon to the arcuate shape of the core wall 3 straight-running notch line section 14. In the example shown, this is arranged perpendicularly and symmetrically to the longitudinal center line 8. Measured on the longitudinal center line 8, the chord-shaped notch line section 14 is at a distance 20 from the core wall 3 which is between 2 and 15 mm. This distance is preferably between 6 and 10 mm. The length 21 of the chord-shaped notch line section between its end points 17 is preferably approximately half the maximum width 25 of the tear-open part 26.

Die Endpunkte 17 des sehnenförmigen Kerblinienabschnittes 14 sind mit den zugehörigen Endpunkten 18 der geradlinigen, zur Längsseite des Deckels parallelen Kerblinienabschnittes 12,13 über Verbindungskerblinienabschnitte verbunden. Diese können gekrümmt sein, gegebenenfalls auch dem kreisbogenförmigen Verlauf der Kernwand 3 folgen. Bevorzugt ist jedoch diese Verbindungskerblinie ebenfalls geradlinig und zur kreisbogenförmigen Kernwand sehnenförmig ausgebildet und angeordnet. So können die Endpunkte 17 und 18 durch eine einzige geradlinige Ke b-linie unmittelbar verbunden sein. Im dargestellten bevorzugten Beispiel besteht die Verbindungskerblinie jedoch aus zwei sehnenförmigen Abschnitten 15 und 16, die e-weils geradlinig sind und unterschiedliche Neigung zur Längsmittellinie 8 aufweisen.The end points 17 of the chord-shaped notch line section 14 are connected to the associated end points 18 of the rectilinear notch line section 12, 13 parallel to the long side of the cover via connecting notch line sections. These can be curved, optionally also follow the circular arc shape of the core wall 3. However, this connecting notch line is preferably also rectilinear and has a tendon shape and is arranged in relation to the arc-shaped core wall. The end points 17 and 18 can thus be directly connected by a single straight-line Ke b line. In the preferred example shown, however, the connecting score line consists of two tendon-shaped sections 15 and 16, which are e-Weil straight and have different inclinations to the longitudinal center line 8.

Die Praxis hat gezeigt, daß in dem Bereich des Auf:eiß- teils, in dem die Kernwand 3 ihren kreisbogenförm gen Verlauf im Endabschnitt des Aufreißteils 26 aufweist, die Kerblinie am zweckmäßigsten einen polygonaler Verlauf ausweist, wie dies in der Figur 2 veranschaulich ist. Die schließt nicht aus, daß die Übergänge an de polygonalen Ecken jeweils durch Abschnitte von sehr « leinem Krümmungsradius gebildet sind.Practice has shown that in the area of the opening part, in which the core wall 3 has its arcuate shape in the end section of the opening part 26, the score line most expediently shows a polygonal profile, as is illustrated in FIG. 2. This does not rule out that the transitions at the polygonal corners are each formed by sections with a very small radius of curvature.

Die Abschnitte 15, 16 der Verbindungskerblinie können gleich groß oder unterschiedlich groß sein.The sections 15, 16 of the connecting score line can be the same size or different sizes.

Der sehnenförmige Kerblinienabschnitt 14 weist in einem Ausführungsbeispiel eine größere Restwanddicke auf als die übrigen Bereiche der Kerblinie 10. Sie kann 20% bis 70% größer als die Restwanddicke der normalen Kerblinie sein. Zur Unterstützung der brettartigen Wirkung auf dem sehnenförmigen Kerblinienabschnitt 14 sind Verformungen und/oder Sicken 28,29 vorgesehen.In one exemplary embodiment, the chord-shaped notch line section 14 has a greater residual wall thickness than the remaining regions of the notch line 10. It can be 20% to 70% larger than the remaining wall thickness of the normal notch line. Deformations and / or beads 28, 29 are provided to support the board-like effect on the tendon-shaped notch line section 14.

Claims (6)

1. Deckel aus Blech für unrunde Dosen, insb. langovale Dosen im z.B. Hansa-Format, mit einem den überwiegen--den Bereich des durch die Deckelkernwand eingegrenzten Deckelspiegels einnehmenden Aufreißteil, der von einer an den Längsseiten dicht und parallel zum Deckelrand verlaufenden, in sich geschlossenen Kerblinie mit einem Startabschnitt im Bereich des einen Deckelendes umgeben und an dem nahe dem Startabschnitt eine hebelförmige Grifflasche flach aufliegend befestigt ist, deren Griffende in Deckellängsrichtung weist, bei dem der Aufreißteil durch mehrere, in vorbestimmter Weise zur Deckellängs- und/oder -querrichtung orientierte Sicken oder dgl. versteift ist, dadurch gekennzeichnet, daß der Aufreißteil (26) an dem vom Startabschnitt (11) abgewandten Ende des Deckels (1) durch einen Kerblinienabschnitt (14) begrenzt sind, dessen Länge (21) merklich kleiner als die dazu etwa parallele größte Breite (25) des Aufreißteils (26' ist und der einen geradlinigen, gegenüber einem bogenförmigen Verlauf der Kernwand (3) sehnenförmigen Verlauf aufweist, wobei der Abstand (20; des geradlinigen Kerblinienabschnittes (14) von der Deckelkernwand (3) - gemessen auf der Längsmittellinie (8) des Deckels - zwischen 2mm und 15mm beträgt.1. Sheet metal lid for non-round cans, especially long oval cans in e.g. Hansa format, with a tear-open part which predominates - the area of the lid mirror delimited by the lid core wall, which is surrounded by a self-contained notch line running on the long sides and parallel to the lid edge with a starting section in the area of one lid end and at the near the start section, a lever-shaped grip tab is fastened lying flat, the handle end of which points in the longitudinal direction of the cover, in which the tear-open part is stiffened by a plurality of beads or the like oriented in a predetermined manner to the longitudinal and / or transverse direction of the cover, characterized in that the tear-open part ( 26) are delimited at the end of the cover (1) facing away from the start section (11) by a notch line section (14), the length (21) of which is noticeably smaller than the approximately parallel greatest width (25) of the tear-open part (26 ') and the has a rectilinear, tendon-shaped course relative to an arcuate course of the core wall (3), d he distance (20; of the straight notch line section (14) from the lid core wall (3) - measured on the longitudinal center line (8) of the lid - is between 2mm and 15mm. 2. Deckel nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand (20) bei langovalem Deckel zwischen 6mm und 10mm liegt.2. Lid according to claim 1, characterized in that the distance (20) in the case of a long oval lid is between 6mm and 10mm. 3. Deckel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Länge (21) des senkrecht und symmetrisch zur Längsmittelebene (8) des Deckels angeordneten, geradlinigen Kerblinienabschnittes (14) etwa der Hälfte der größten Breite (25) des Aufreißteils (26) entspricht.3. Lid according to claim 1 or 2, characterized in that the length (21) of the rectilinear notch line section (14) arranged perpendicularly and symmetrically to the longitudinal central plane (8) of the lid (14) is approximately half the greatest width (25) of the tear-open part (26) corresponds. 4. Deckel nach Anspruch 1, dadurch gekennzeichnet, daß die jeweiligen Endpunkte (17,18) der geraden Kerblinienabschnitte (14,12 bzw. 14,13) durch bogenförmig gekrümmt verlaufende Kerblinienabschnitte miteinander verbunden sind.4. Lid according to claim 1, characterized in that the respective end points (17, 18) of the straight notch line sections (14, 12 and 14, 13) are connected to one another by arcuate notch line sections. 5. Deckel nach Anspruch 1, dadurch gekennzeichnet, daß die Endpunkte (17) des geradlinigen Kerblinienabschnittes (14) mit den zugewandten Endpunkten (18) der beiden zu den Längsseiten des Deckels parallelen, geradlinig verlaufenden Kerblinienabschnitte (12,13) über einen oder mehrere, jeweils geradlinige und unter unterschiedlichen Winkeln zur Längsmittellinie (8) des Deckels verlaufenden Kerblinienabschnitten (15,16) verbunden sind.5. Lid according to claim 1, characterized in that the end points (17) of the rectilinear notch line section (14) with the facing end points (18) of the two rectilinear notch line sections (12, 13) parallel to the long sides of the cover via one or more , straight and notch line sections (15, 16) running at different angles to the longitudinal center line (8) of the cover are connected. 6. Deckel nach Anspruch 1, dadurch gekennzeichnet, daß die Restwanddicke des sehnenförmigen Kerblinienabschnittes (14) zwischen etwa 20% und 70% größer als in den übrigen Abschnitten der Kerblinie (10) ist.6. Lid according to claim 1, characterized in that the remaining wall thickness of the chord-shaped notch line section (14) is between about 20% and 70% larger than in the other sections of the notch line (10).
EP85109047A 1984-08-17 1985-07-19 Tinplate cover for containers with an elongate oval section, in particular for "hansa-format" containers Expired EP0171650B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85109047T ATE39662T1 (en) 1984-08-17 1985-07-19 LID MADE OF SHEET METAL, ESPECIALLY LONG-VALVE CANS IN e.g. HANSA-FORMAT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430382 DE3430382A1 (en) 1984-08-17 1984-08-17 SHEET LID, INSB. LANGOVALE CAN, e.g. Hansa format
DE3430382 1984-08-17

Publications (3)

Publication Number Publication Date
EP0171650A2 true EP0171650A2 (en) 1986-02-19
EP0171650A3 EP0171650A3 (en) 1987-04-22
EP0171650B1 EP0171650B1 (en) 1989-01-04

Family

ID=6243325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109047A Expired EP0171650B1 (en) 1984-08-17 1985-07-19 Tinplate cover for containers with an elongate oval section, in particular for "hansa-format" containers

Country Status (18)

Country Link
US (1) US4593834A (en)
EP (1) EP0171650B1 (en)
JP (1) JPS6160449A (en)
KR (1) KR900005569B1 (en)
AT (1) ATE39662T1 (en)
AU (1) AU577878B2 (en)
BR (1) BR8503776A (en)
CA (1) CA1245996A (en)
DD (1) DD236068A5 (en)
DE (2) DE3430382A1 (en)
DK (1) DK170745B1 (en)
ES (1) ES288625Y (en)
GR (1) GR852001B (en)
IS (1) IS1335B6 (en)
NO (1) NO169223C (en)
PL (1) PL145427B1 (en)
PT (1) PT80972B (en)
SU (1) SU1389674A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218096A1 (en) * 1985-10-02 1987-04-15 Schmalbach-Lubeca AG Sheet metal lid for non-circular cans, especially oblong cans with a Hansa shape
EP0236736A2 (en) * 1986-03-06 1987-09-16 Schmalbach-Lubeca AG Tearable metal cover for cans

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD405010S (en) 1994-11-03 1999-02-02 Schmalbach-Lubeca Ag Can lid
FI19992715A (en) * 1999-12-17 2001-06-18 Mauri Maekinen The lid of the jar, like the can
JP2005535531A (en) * 2002-08-14 2005-11-24 ファイヤースター アーゲー Fuel can
LT3257773T (en) * 2016-06-16 2019-06-10 Ardagh Mp Group Netherlands B.V. Lid for a rounded oblong can, and a rounded oblong can provided with such lid

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Publication number Priority date Publication date Assignee Title
US3441171A (en) * 1968-03-11 1969-04-29 Continental Can Co Easy-opening container panel structure
US3478918A (en) * 1968-08-14 1969-11-18 American Can Co Full open end closure
GB1207769A (en) * 1968-07-16 1970-10-07 Schmalbach Lubeca Easy opening can end
DE1959353A1 (en) * 1969-11-26 1971-06-03 Leckermaeulchen Fischkonserven Riveted connection between the grip tab and tear-open surface of containers, cans or the like.
DE2909076A1 (en) * 1979-03-08 1980-09-11 Schmalbach Lubeca Airtight metal box for food preservation - has tear=off lid with attached grip ring, marked on top with weakened break line

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DE644113C (en) * 1932-02-12 1937-04-24 Transitoria Ab Tin containers, especially food cans
US3591037A (en) * 1969-02-24 1971-07-06 Aluminum Co Of America Container with removable panel portion
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
DE2909074C2 (en) * 1979-03-08 1983-05-26 Schmalbach-Lubeca Gmbh, 3300 Braunschweig Tear-open lid made of sheet metal for cans with an elongated rectangular outline with rounded corners, especially multi-portion menu cans
DE3535226A1 (en) * 1985-10-02 1987-04-16 Schmalbach Lubeca SHEET LID FOR UNROUNDERED CAN, ESP. LANGOVALE CAN IN HANSA FORMAT

Patent Citations (5)

* 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
GB1207769A (en) * 1968-07-16 1970-10-07 Schmalbach Lubeca Easy opening can end
US3478918A (en) * 1968-08-14 1969-11-18 American Can Co Full open end closure
DE1959353A1 (en) * 1969-11-26 1971-06-03 Leckermaeulchen Fischkonserven Riveted connection between the grip tab and tear-open surface of containers, cans or the like.
DE2909076A1 (en) * 1979-03-08 1980-09-11 Schmalbach Lubeca Airtight metal box for food preservation - has tear=off lid with attached grip ring, marked on top with weakened break line

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218096A1 (en) * 1985-10-02 1987-04-15 Schmalbach-Lubeca AG Sheet metal lid for non-circular cans, especially oblong cans with a Hansa shape
EP0236736A2 (en) * 1986-03-06 1987-09-16 Schmalbach-Lubeca AG Tearable metal cover for cans
EP0236736A3 (en) * 1986-03-06 1988-06-29 Schmalbach-Lubeca Ag Tearable metal cover for cans

Also Published As

Publication number Publication date
DD236068A5 (en) 1986-05-28
CA1245996A (en) 1988-12-06
PL145427B1 (en) 1988-09-30
AU4526685A (en) 1986-02-20
NO169223C (en) 1992-05-27
DK371485A (en) 1986-02-18
PL254827A1 (en) 1986-06-17
JPS6160449A (en) 1986-03-28
BR8503776A (en) 1986-05-20
DE3567193D1 (en) 1989-02-09
US4593834A (en) 1986-06-10
NO853245L (en) 1986-02-18
PT80972A (en) 1985-09-01
PT80972B (en) 1987-08-19
IS1335B6 (en) 1989-01-13
GR852001B (en) 1985-12-16
DE3430382A1 (en) 1986-02-27
DE3430382C2 (en) 1989-09-28
SU1389674A3 (en) 1988-04-15
ES288625Y (en) 1986-09-01
EP0171650A3 (en) 1987-04-22
AU577878B2 (en) 1988-10-06
DK371485D0 (en) 1985-08-15
ATE39662T1 (en) 1989-01-15
EP0171650B1 (en) 1989-01-04
JPH0227224B2 (en) 1990-06-15
ES288625U (en) 1986-01-01
IS3025A7 (en) 1986-02-18
KR860001751A (en) 1986-03-22
KR900005569B1 (en) 1990-07-31
DK170745B1 (en) 1996-01-08
NO169223B (en) 1992-02-17

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