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WO1999064181A1 - Container, especially a can, made of thin-walled sheet metal - Google Patents

Container, especially a can, made of thin-walled sheet metal Download PDF

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Publication number
WO1999064181A1
WO1999064181A1 PCT/DE1998/001554 DE9801554W WO9964181A1 WO 1999064181 A1 WO1999064181 A1 WO 1999064181A1 DE 9801554 W DE9801554 W DE 9801554W WO 9964181 A1 WO9964181 A1 WO 9964181A1
Authority
WO
WIPO (PCT)
Prior art keywords
ribs
lid
bottom part
beads
container
Prior art date
Application number
PCT/DE1998/001554
Other languages
German (de)
French (fr)
Inventor
Hans Werner Franzer
Original Assignee
Hans Werner Franzer
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
Priority to DE29723382U priority Critical patent/DE29723382U1/en
Priority claimed from DE29723382U external-priority patent/DE29723382U1/en
Priority claimed from DE19708826A external-priority patent/DE19708826C3/en
Application filed by Hans Werner Franzer filed Critical Hans Werner Franzer
Priority to PCT/DE1998/001554 priority patent/WO1999064181A1/en
Publication of WO1999064181A1 publication Critical patent/WO1999064181A1/en

Links

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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B65D1/165—Cylindrical cans
    • 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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/46—Local reinforcements, e.g. adjacent closures

Definitions

  • Containers especially cans, made of thin-walled sheet metal
  • the invention relates to a container according to the preamble of claim 1.
  • Containers of the type in question are described, for example, in DE-A-31 17 347, EP-A-0 122 651, EP-A-0 349 054, EP-A-0 542 552 and EP-A- 005 025.
  • the two-part or three-part containers according to the known prior art have a base part which determines the volume of the container, followed by a central jacket-shaped central part, which are produced in one operation - that is to say in one part - by extrusion.
  • the wall thickness (thickness) of the central part is z. B. in the order of about 0, 10 mm up to approx. 0.15 mm, while the wall thickness (thickness) of the base part is of the order of approx. 0.30 mm to approx. 0.35 mm.
  • the wall thickness (thickness) of the cover part connected to it by flanging on the side of the (correspondingly prepared) central part opposite the base part has a wall thickness comparable to the base part.
  • Containers of this type are used as single-use packaging in considerable quantities, in particular for all kinds of drinks. Accordingly, the use of such packaging involves a considerable consumption of material (in the present case, in particular tinplate, but also aluminum). Even relatively small amounts of material that could be saved on a single container in its manufacture, based on the total annual consumption of about five billion cans in the Federal Republic of Germany alone, would mean considerable and in any case not insignificant material savings.
  • the aim of the present invention is to further improve containers of the type mentioned at the outset in such a way that — with the function remaining the same and not impaired — considerable material savings in their manufacture are possible.
  • the present invention is based in particular on the fact that the bottom part of the previously known container is much thicker, for. B. 0.33 mm thick, is designed as the central part, which has a wall thickness of z. B. 0.12 mm.
  • the stiffening elements provided according to the invention ribs, beads or the like
  • the bottom part thereof can be further improved in this way be that it can be made considerably thinner than before without losing its function - that is, without reducing its absolute inherent rigidity.
  • the weight of the bottom part can be reduced, for example, by 2-5 g compared to the bottom part of previously known cans of the type in question. Taking into account an annual consumption of approximately five billion cans, this leads to a reduction in the annual material consumption in the manufacture of these containers in the order of magnitude - in the case assumed here - for example 25,000 t of tinplate! - The stackability of the cans is also improved.
  • the solution according to claim 2 has the advantage that the concave arched bottom of the bottom part in a manner known per se for stiffening has no areas beyond the concavely curved surface (base area), so that, for. B. direct, as dense and therefore space-saving stacking of such cans is possible without any possible mutual hindrance by the stiffening elements according to the invention and the elements of the mentioned zipper of a further can located under the relevant can.
  • a very dense, direct stacking of cans may be impeded by the ribs, beads or the like provided according to the invention - depending on the actual conditions of the design of the lid part and bottom part; however, the stiffening of the base part to be expected from the introduction of such ribs, beads or the like into the base part is possibly even greater than in the case of the solution according to claim 2.
  • Claims 4 to 6 indicate process steps in connection with the otherwise known production of cans in question.
  • claim 4 suggests introducing the ribs, beads or the like into the base part of the can in the course of the extrusion process in the production of base part with a central part
  • claim 5 specifies an alternative solution, according to which the ribs, beads or the like. In a separate work step be introduced into the bottom part of the can. - Instead of a procedure in which the embossing of the
  • FIG. 1 is a perspective view of the lower region of a container according to the invention with a base part and subsequent central part,
  • FIG. 4 shows the lower region of the container according to FIG. 3 in section according to section lines B-B in FIG. 3,
  • FIG. 6 shows the lower region of the container according to FIG. 5 in a section corresponding to section line C-C in FIG. 5.
  • FIG. 1 and 2 show the round, concavely curved base part 2 of a container 1 (not shown), followed by a rising central part 3.
  • the base part 2 are - from a one located in the middle of the base part 2, unspecified and for example a diameter in the order of magnitude of approximately 5 mm to approximately 12 mm, starting in the direction of the edge of the base part, which is designated as 5 and serves as an annular footprint, that is to say arranged in a radial direction and thus transversely to the base part or to the latter
  • Base surface stiffening stiffening elements provided in the form of ribs, beads or the like. 4.
  • the ribs, beads or the like. 4 end in the case of the illustration in FIG.
  • FIGS. 3 and 4 show the round, concavely curved base part 7 with a subsequent, projecting, cylinder-jacket-shaped central part 8 of a container 6, which is not shown in the rest.
  • the base part 7 there are - starting from an area located in the middle of the base part 7 as in the case of the embodiment according to FIGS. 1 and 2 - stiffening elements arranged in the radial direction in the form of ribs, beads or the like. 9 are provided.
  • the ribs, beads or the like 9 are formed by approximately triangular depressions 10 which are relatively wide in comparison to the ribs, beads or the like 9 formed by them and end at a short distance in front of the peripheral edge 11 of the base part 7 or of the middle part 8 1 and 2, the ribs, beads or the like 9 can either have a curvature which corresponds to the direction of curvature of the base part 7, or a curvature which is opposite to the direction of curvature of the base part 7.
  • the direction of the curvature of the depressions 10 is in any case opposite to the direction of the curvature of the ribs, beads or the like. 9. Otherwise, the statements made in connection with the embodiment according to FIGS. 1 and 2 in connection with the alignment of the ribs, beads or the like 4 in the bottom part 2 also apply to this embodiment of the invention.
  • FIGS. 5 and 6 show the same as the representations according to FIGS. 1 to 4 of a container 12, which is not shown in any other way, the round, concavely curved base part 13 with subsequent, rising central part 14.
  • the base part 13 are - from one in starting in the middle of the bottom part 13, unspecified area - arranged in the radial direction and thus - as in the case of the embodiments according to FIGS , Beads or the like. 15 provided.
  • the ribs, beads or the like. 15 extend into the circumferential edge 16 of the bottom part 13 or middle part 14 and therefore interrupt the course of the edge 16 at the relevant points. Also in the case of this exemplary embodiment, the ribs, beads or the like.
  • the mentioned ribs, beads or the like are also advantageous in embodiments such as those shown in FIGS. 1, 2 and 3, 4 to extend into the edge 5 or 11 of the base part 2 or 7.
  • This uses another possibility to set the degree of stiffening as high as possible. This then results in an edge for the base part in question, which is no longer continuously circular, but is interrupted in its - generally circular - course in accordance with the width and number of ribs, beads or the like.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)

Abstract

Disclosed is a container (1), especially a can, made of thin-walled sheet metal, consisting of a single piece extruded bottom part (2) including a tubular protruding central part (3) that is closed with a lid having a tear-off closure that opens the container and that is connected to the central part (3) by means of flanges. The production of said cans, which are especially used as disposable containers for all types of beverages, implies considerable material consumption (aluminum, tinplate). According to the invention, in order to save material during production, at least the bottom part (2), and optionally the lid, is fitted with ribs, tabs or the like (4) which extend from the center of the bottom part (2) or the lid part in the direction of the edge (5) of the bottom part or the lid part. The considerable rigidity of the bottom part (2) or lid part thus obtained makes it possible to produce a substantially thinner bottom or lid part while preserving the same rigidity and reducing material consumption.

Description

BESCHREIBUNG DESCRIPTION
Behälter, insbesondere Dose, aus dünnwandigem BlechContainers, especially cans, made of thin-walled sheet metal
Stand der TechnikState of the art
Die Erfindung betrifft einen Behälter entsprechend dem Oberbegriff des Patentanspruches 1.The invention relates to a container according to the preamble of claim 1.
Behälter der zur Rede stehenden Art sind beispielsweise in der DE-A-31 17 347, der EP-A-0 122 651, der EP-A-0 349 054, der EP-A-0 542 552 und der EP-A-005 025 beschrieben.Containers of the type in question are described, for example, in DE-A-31 17 347, EP-A-0 122 651, EP-A-0 349 054, EP-A-0 542 552 and EP-A- 005 025.
Die zwei- oder dreiteiligen Behälter nach dem vorbekannten Stand der Technik weisen ein das Volumen des Behälters bestimmendes Bodenteil mit anschließendem, zvlindermantelförmigem Mittelteil auf, die zusammenhängend in einem Arbeitsgang - also einteilig - durch Fließpressen hergestellt sind. Die Wandstärke (Dicke) des Mittelteils liegt bei diesen Behältern z. B. in der Größenordnung von ca. 0, 10 mm bis ca. 0,15 mm, während die Wandstärke (Dicke) des Bodenteils in der Größenordnung von ca. 0,30 mm bis ca. 0,35 mm liegt. Die Wandstärke (Dicke) des durch Bördeln auf der dem Bodenteil gegenüberliegenden Seite des (entsprechend vorbereiteten) Mittelteils mit diesem verbundenen Deckelteils weist eine dem Bodenteil vergleichbare Wandstärke auf.The two-part or three-part containers according to the known prior art have a base part which determines the volume of the container, followed by a central jacket-shaped central part, which are produced in one operation - that is to say in one part - by extrusion. The wall thickness (thickness) of the central part is z. B. in the order of about 0, 10 mm up to approx. 0.15 mm, while the wall thickness (thickness) of the base part is of the order of approx. 0.30 mm to approx. 0.35 mm. The wall thickness (thickness) of the cover part connected to it by flanging on the side of the (correspondingly prepared) central part opposite the base part has a wall thickness comparable to the base part.
Behälter dieser Art werden in erheblichen Mengen , insbesondere für Getränke aller Art, als Einwegverpackung benutzt. Dementsprechend ist mit der Verwendung derartiger Verpackungen ein erheblicher Verbrauch an Material (im vorliegenden Fall also insbesondere Weißblech, aber auch Aluminium) verbunden. Selbst relativ geringe Mengen von an einem einzelnen Behälter bei seiner Herstellung einsparbarem Material würden, bezogen auf den gesamten jährlichen Verbrauch von etwa fünf Milliarden Dosen allein in der Bundesrepublik Deutschland, eine erhebliche und jedenfalls nicht zu vernachlässigende Materialersparnis bedeuten.Containers of this type are used as single-use packaging in considerable quantities, in particular for all kinds of drinks. Accordingly, the use of such packaging involves a considerable consumption of material (in the present case, in particular tinplate, but also aluminum). Even relatively small amounts of material that could be saved on a single container in its manufacture, based on the total annual consumption of about five billion cans in the Federal Republic of Germany alone, would mean considerable and in any case not insignificant material savings.
Zielaim
Mit der vorliegenden Erfindung wird das Ziel verfolgt, Behälter der eingangs genannten Art in dem Sinne weiter zu verbessern, daß - bei gleichbleibender, nicht beeinträchtigter Funktion - eine erhebliche Materialersparnis bei deren Herstellung möglich ist.The aim of the present invention is to further improve containers of the type mentioned at the outset in such a way that — with the function remaining the same and not impaired — considerable material savings in their manufacture are possible.
Lösungsolution
Zur Lösung des vorstehend umrissenen Zieles wird die Erfindung entsprechend dem kennzeichnenden Teil des Anspruches 1 vorgeschlagen.To achieve the object outlined above, the invention is proposed in accordance with the characterizing part of claim 1.
Zweckmäßige weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen 2 und 3 angegeben.Advantageous further developments of the invention are specified in subclaims 2 and 3.
Unabhängig von dem Erfindungsgedanken nach Anspruch 1 betrifft die Erfindung auch Verfahrensmerkmale, wie sie in den nebengeordneten Ansprüchen 4 und 5 angegeben sind. - Eine vorteilhafte Weiterbildung des Gegenstandes des Anspruches 5 nennt Anspruch 6.Regardless of the inventive concept according to claim 1, the invention relates also process features as specified in the independent claims 4 and 5. - An advantageous development of the subject matter of claim 5 calls claim 6.
Vorteilebenefits
Die vorliegende Erfindung geht insbesondere von der Tatsache aus, daß das Bodenteil der bisher bekannten Behälter wesentlich dicker, z. B. 0,33 mm dick, ausgeführt ist als das Mittelteil, das bei den bekannten Behältern eine Wandstärke von z. B. 0,12 mm aufweist. Durch Einbringen der erfindungsgemäß vorgesehenen Versteifungselemente (Rippen, Sicken oder dgl.) in das - durch eine üblicherweise vorgesehene konkave Formgebung bereits in gewissem Ausmaß gegen von innen und/oder von außen quer zum Bodenteil wirkende Kräfte versteift ausgeführte - Bodenteil kann dessen Eigensteifigkeit derart weiter verbessert werden, daß es ohne Verlust seiner Funktion - also ohne Verringerung seiner absoluten Eigensteifigkeit - erheblich dünner als bisher ausgeführt sein kann. Auf diese Weise kann das Gewicht des Bodenteils, verglichen mit dem Bodenteil bisher bekannter Dosen der zur Rede stehenden Art, um beispielsweise 2-5 g reduziert werden. Unter Berücksichtigung eines jährlichen Verbrauchs von ca. fünf Milliarden Dosen führt dies zu einer Reduktion des jährlichen Materialverbrauchs bei der Herstellung dieser Behälter in der Größenordnung von - im hier angenommenen Fall - beispielsweise 25.000 t Weißblech! — Außerdem wird die Stapelfähigkeit der Dosen verbessert.The present invention is based in particular on the fact that the bottom part of the previously known container is much thicker, for. B. 0.33 mm thick, is designed as the central part, which has a wall thickness of z. B. 0.12 mm. By introducing the stiffening elements provided according to the invention (ribs, beads or the like) into the bottom part, which is already stiffened to a certain extent against forces acting from the inside and / or outside transversely to the bottom part by a conventionally provided concave shape, the bottom part thereof can be further improved in this way be that it can be made considerably thinner than before without losing its function - that is, without reducing its absolute inherent rigidity. In this way, the weight of the bottom part can be reduced, for example, by 2-5 g compared to the bottom part of previously known cans of the type in question. Taking into account an annual consumption of approximately five billion cans, this leads to a reduction in the annual material consumption in the manufacture of these containers in the order of magnitude - in the case assumed here - for example 25,000 t of tinplate! - The stackability of the cans is also improved.
Die Ansprüche 2 und 3 nennen alternative Lösungsmöglichkeiten für die Einbringung der Versteifungselemente in das Bodenteil bzw. in das Deckelteil.The claims 2 and 3 name alternative solutions for the introduction of the stiffening elements in the bottom part or in the cover part.
Die Lösung nach Anspruch 2 hat den Vorteil, daß der in an sich bekannter Weise zwecks Versteifung konkav gewölbte Boden des Bodenteils keine über die konkav gewölbte Fläche (Grundfläche) hinaustretenden Bereiche aufweist, so daß z. B. direktes, möglichst dichtes und also raumsparendes Ubereinanderstapeln derartiger Dosen möglich ist ohne sonst eventuell mögliche gegenseitige Behinderung durch die erfindungsgemäßen Versteifungselemente und die Elemente des erwähnten Aufreißverschlusses einer unter der betreffenden Dose befindlichen, weiteren Dose. Im Fall der Lösung nach Anspruch 3 kann zwar eventuell ein sehr dichtes, direktes Ubereinanderstapeln von Dosen durch die erfindungsgemäß vorgesehenen Rippen, Sicken oder dgl. - abhängig von den tatsächlichen Gegebenheiten der Gestaltung von Deckelteil und Bodenteil - behindert sein; jedoch ist die durch das Einbringen derartiger Rippen, Sicken oder dgl. in das Bodenteil zu erwartende Versteifung des Bodenteils eventuell noch größer als im Fall der Lösung nach Anspruch 2.The solution according to claim 2 has the advantage that the concave arched bottom of the bottom part in a manner known per se for stiffening has no areas beyond the concavely curved surface (base area), so that, for. B. direct, as dense and therefore space-saving stacking of such cans is possible without any possible mutual hindrance by the stiffening elements according to the invention and the elements of the mentioned zipper of a further can located under the relevant can. In the case of the solution according to claim 3, a very dense, direct stacking of cans may be impeded by the ribs, beads or the like provided according to the invention - depending on the actual conditions of the design of the lid part and bottom part; however, the stiffening of the base part to be expected from the introduction of such ribs, beads or the like into the base part is possibly even greater than in the case of the solution according to claim 2.
Die Ansprüche 4 bis 6 geben Verfahrensschritte im Zusammenhang mit der im übrigen an sich bekannten Herstellung von zur Rede stehenden Dosen an.Claims 4 to 6 indicate process steps in connection with the otherwise known production of cans in question.
Während Anspruch 4 ein Einbringen der Rippen, Sicken oder dgl. in das Bodenteil der Dose im Zuge des Fließpreßvorganges beim Herstellen von Bodenteil mit Mittelteil vorschlägt, gibt Anspruch 5 eine alternative Lösung an, nach der die Rippen, Sicken oder dgl. in einem gesonderten Arbeitssschritt in das Bodenteil der Dose eingebracht werden. - Anstelle eines Verfahrens, bei dem die Prägung derWhile claim 4 suggests introducing the ribs, beads or the like into the base part of the can in the course of the extrusion process in the production of base part with a central part, claim 5 specifies an alternative solution, according to which the ribs, beads or the like. In a separate work step be introduced into the bottom part of the can. - Instead of a procedure in which the embossing of the
Rippen, Sicken oder dgl. mittels mechanischer Stempel vorgenommenen wird, kann diese Prägung im Zusammenhang mit der vorliegenden Erfindung mit Vorteil auch dadurch vorgenommen werden, daß das an sich bekannte, mit Flüssigkeitsdruck arbeitende Verfahren entsprechend dem Vorschlag nach Anspruch 6 eingesetzt wird.Ribs, beads or the like. Is carried out by means of mechanical stamps, this embossing can advantageously also be carried out in connection with the present invention in that the known method, which works with liquid pressure, is used in accordance with the proposal according to claim 6.
Erläuterung der Erfindung an AusführungsbeispielenExplanation of the invention using exemplary embodiments
Anhand der Figuren 1 bis 6 der Zeichnung wird die Erfindung im folgenden an drei Ausführungsbeispielen näher erläutert.The invention is explained in more detail below using three exemplary embodiments with reference to FIGS. 1 to 6 of the drawing.
Es zeigenShow it
Fig. 1 den unteren Bereich eines erfindungsgemäßen Behälters mit Bodenteil und anschließendem Mittelteil in perspektivischer Darstellung,1 is a perspective view of the lower region of a container according to the invention with a base part and subsequent central part,
Fig. 2 den unteren Bereich des Behälters nach Fig. 1 im Schnitt entsprechendFig. 2 corresponding to the lower region of the container of Fig. 1 in section
Schnittlinie A-A in Fig. 1, Fig. 3 den unteren Bereich eines weiteren erfindungsgemäßen Behälters mitSection line AA in Fig. 1, Fig. 3 with the lower region of a further container according to the invention
Bodenteil und anschließendem Mittelteil in perspektivischer Darstellung,Bottom part and subsequent middle part in perspective,
Fig. 4 den unteren Bereich des Behälters nach Fig. 3 im Schnitt entsprechend Schnittlinien B-B in Fig. 3,4 shows the lower region of the container according to FIG. 3 in section according to section lines B-B in FIG. 3,
Fig. 5 den unteren Bereich eines dritten erfindungsgemäßen Behälters mitFig. 5 with the lower area of a third container according to the invention
Bodenteil und anschließendem Mittelteil in perspektivischer Darstellung, undBottom part and subsequent middle part in perspective, and
Fig. 6 den unteren Bereich des Behälters nach Fig. 5 im Schnitt entsprechend Schnittlinie C-C in Fig. 5.6 shows the lower region of the container according to FIG. 5 in a section corresponding to section line C-C in FIG. 5.
Die Fig. 1 und 2 zeigen von einem im übrigen nicht weiter dargestellten Behälter 1 das runde, konkav gekrümmte Bodenteil 2 mit anschließendem, aufragendem Mittelteil 3. Im Bodenteil 2 sind - von einem in der Mitte des Bodenteils 2 befindlichen, nicht näher bezeichneten und beispielsweise einen Durchmesser in der Größenordnung von etwa 5 mm bis etwa 12 mm aufweisenden Bereich ausgehend - in Richtung auf den als ringförmige Stellfläche dienenden, mit 5 bezeichneten Rand des Bodenteils zu gerichtete, also in radialer Richtung verlaufend angeordnete und somit quer zum Bodenteil bzw. zu dessen Grundfläche versteifend wirkende Versteifungselemente in Form von Rippen, Sicken oder dgl. 4 vorgesehen. Die Rippen, Sicken oder dgl. 4 enden im Fall der Darstellung in Fig. 1 mit geringem Abstand vor dem umlaufenden Rand 5 des Bodenteils 2 bzw. des Mittelteils 3 und können entweder eine Wölbung haben, die dem Wölbungssinn (konkav, also zum Innenraum der Dose hin gerichtet) des Bodenteils 2 entspricht, oder aber eine Wölbung, die dem Wölbungssinn des Bodenteils entgegengesetzt ist. Letztere Lösung dürfte eine größere Versteifung des Bodenteils 2 bewirken als die erstgenannte Lösung, während die erstgenannte Lösung den Vorteil hat, daß die Rippen, Sicken oder dgl. 4 nicht in den vor dem konkav gewölbten Bodenteil 2 liegenden Raum hineinreichen und deshalb z. B. beim direkten Aufeinanderstapeln von Dosen nicht hinderlich sein können. Fig. 3 und 4 zeigen von einem im übrigen nicht weiter dargestellten Behälter 6 das runde, konkav gekrümmte Bodenteil 7 mit anschließendem, aufragendem, zylinder- mantelförmigem Mittelteil 8. Im Bodenteil 7 sind - von einem in der Mitte des Bodenteils 7 befindlichen Bereich ausgehend wie im Fall der Ausführungsform nach den Fig. 1 und 2 - in radialer Richtung verlaufend angeordnete Versteifungselemente in Form von Rippen, Sicken oder dgl. 9 vorgesehen. Die Rippen, Sicken oder dgl. 9 sind durch etwa dreieckförmige, im Vergleich zu den durch sie gebildeten Rippen, Sicken oder dgl. 9 relativ breite Senken 10 gebildet und enden mit geringem Abstand vor dem umlaufenden Rand 11 des Bodenteils 7 bzw. des Mittelteils 8. Wie im Fall des Ausführungsbeispiels nach den Fig. 1 und 2 können die Rippen, Sicken oder dgl. 9 entweder eine Wölbung haben, die dem Wölbungssinn des Bodenteils 7 entspricht, oder aber eine Wölbung, die dem Wölbungssinn des Bodenteils 7 entgegengesetzt ist. - Der Wölbungssinn der Senken 10 ist dem Wölbungssinn der Rippen, Sicken oder dgl. 9 in jedem Fall entgegengesetzt. Im übrigen gelten auch für diese Ausführungsform der Erfindung die zur Ausführungsform nach den Fig. 1 und 2 im Zusammenhang mit der Ausrichtung der Rippen, Sicken oder dgl. 4 im Bodenteil 2 gemachten Ausführungen.1 and 2 show the round, concavely curved base part 2 of a container 1 (not shown), followed by a rising central part 3. In the base part 2 are - from a one located in the middle of the base part 2, unspecified and for example a diameter in the order of magnitude of approximately 5 mm to approximately 12 mm, starting in the direction of the edge of the base part, which is designated as 5 and serves as an annular footprint, that is to say arranged in a radial direction and thus transversely to the base part or to the latter Base surface stiffening stiffening elements provided in the form of ribs, beads or the like. 4. The ribs, beads or the like. 4 end in the case of the illustration in FIG. 1 at a short distance in front of the peripheral edge 5 of the base part 2 or of the central part 3 and can either have a curvature that is concave, that is to say to the interior of the Can directed towards) of the bottom part 2 corresponds, or a curvature that is opposite to the direction of the curvature of the bottom part. The latter solution should cause greater stiffening of the bottom part 2 than the first-mentioned solution, while the first-mentioned solution has the advantage that the ribs, beads or the like. 4 do not extend into the space lying in front of the concavely curved bottom part 2 and therefore z. B. can not be a hindrance when stacking cans directly. 3 and 4 show the round, concavely curved base part 7 with a subsequent, projecting, cylinder-jacket-shaped central part 8 of a container 6, which is not shown in the rest. In the base part 7 there are - starting from an area located in the middle of the base part 7 as in the case of the embodiment according to FIGS. 1 and 2 - stiffening elements arranged in the radial direction in the form of ribs, beads or the like. 9 are provided. The ribs, beads or the like 9 are formed by approximately triangular depressions 10 which are relatively wide in comparison to the ribs, beads or the like 9 formed by them and end at a short distance in front of the peripheral edge 11 of the base part 7 or of the middle part 8 1 and 2, the ribs, beads or the like 9 can either have a curvature which corresponds to the direction of curvature of the base part 7, or a curvature which is opposite to the direction of curvature of the base part 7. - The direction of the curvature of the depressions 10 is in any case opposite to the direction of the curvature of the ribs, beads or the like. 9. Otherwise, the statements made in connection with the embodiment according to FIGS. 1 and 2 in connection with the alignment of the ribs, beads or the like 4 in the bottom part 2 also apply to this embodiment of the invention.
Die Fig. 5 und 6 zeigen sinngemäß ebenso wie die Darstellungen nach den Fig. 1 bis 4 von einem im übrigen nicht weiter dargestellten Behälter 12 das runde, konkav gekrümmte Bodenteil 13 mit anschließendem, aufragendem Mittelteil 14. Im Bodenteil 13 sind - von einem in der Mitte des Bodenteils 13 befindlichen, nicht näher bezeichneten Bereich ausgehend - in radialer Richtung verlaufend angeordnete und somit - wie auch im Fall der Ausführungsformen nach den Fig. 1 bis 4 - quer zum Bodenteil bzw. zu dessen Grundfläche versteifend wirkende Versteifungselemente in Form von Rippen, Sicken oder dgl. 15 vorgesehen. Die Rippen, Sicken oder dgl. 15 reichen bis in den umlaufenden Rand 16 von Bodenteil 13 bzw. Mittelteil 14 hinein und unterbrechen daher an den betreffenden Stellen jeweils den Verlauf des Randes 16. Auch im Fall dieses Ausführungsbeispiels können die Rippen, Sicken oder dgl. 15 entweder eine Wölbung haben, die dem Wölbungssinn des Bodenteils 13 entspricht, oder aber eine Wölbung , die dem Wölbungssinn des Bodenteils entgegengesetzt ist. Ferner gelten im Fall der Ausführungsform nach den Fig. 4 und 5 ebenfalls die Aussagen, die bezüglich der Ausrichtung der Rippen, Sicken oder dgl. im Verhältnis zum konkaven Bodenteil bei der Beschreibung der Ausführungsbeispiele nach den Fig. 1 bis 4 gemacht worden sind.5 and 6 show the same as the representations according to FIGS. 1 to 4 of a container 12, which is not shown in any other way, the round, concavely curved base part 13 with subsequent, rising central part 14. In the base part 13 are - from one in starting in the middle of the bottom part 13, unspecified area - arranged in the radial direction and thus - as in the case of the embodiments according to FIGS , Beads or the like. 15 provided. The ribs, beads or the like. 15 extend into the circumferential edge 16 of the bottom part 13 or middle part 14 and therefore interrupt the course of the edge 16 at the relevant points. Also in the case of this exemplary embodiment, the ribs, beads or the like. 15 either have a curvature which corresponds to the direction of curvature of the base part 13, or else a curvature which is opposite to the direction of curvature of the base part. Furthermore, in the case of the embodiment according to FIGS. 4 and 5, the statements relating to the alignment of the ribs, beads or Like. In relation to the concave bottom part in the description of the embodiments of FIGS. 1 to 4 have been made.
Ferner ist es im Hinblick auf den mit der Erfindung verfolgten Zweck der durch möglichst weitgehende Versteifung des bekannten konkaven Bodenteils der zur Rede stehenden Dosen erzielbaren Materialersparnis für deren Herstellung vorteilhaft, die erwähnten Rippen, Sicken oder dgl. auch bei Ausfuhrungsformen wie denen nach den Fig. 1, 2 und 3, 4 bis in den Rand 5 bzw. 11 des Bodenteils 2 bzw. 7 hineinreichen zu lassen. Dadurch wird eine weitere Möglichkeit genutzt, den Grad der Versteifung möglichst hoch zu setzen. Hierbei ergibt sich dann ein Rand für das betreffende Bodenteil, der nicht mehr durchgehend kreisförmig ist, sondern entsprechend der Breite und Anzahl der Rippen, Sicken oder dgl. in seinem — grundsätzlich kreisförmigen — Verlauf unterbrochen ist.Furthermore, in view of the purpose pursued by the invention of the material savings which can be achieved by stiffening as far as possible the known concave base part of the cans in question for their manufacture, the mentioned ribs, beads or the like are also advantageous in embodiments such as those shown in FIGS. 1, 2 and 3, 4 to extend into the edge 5 or 11 of the base part 2 or 7. This uses another possibility to set the degree of stiffening as high as possible. This then results in an edge for the base part in question, which is no longer continuously circular, but is interrupted in its - generally circular - course in accordance with the width and number of ribs, beads or the like.
Wenngleich in der vorangehenden Beschreibung von Ausführungsbeispielen nur das Bodenteil einer Dose behandelt worden ist, so ist der Erfindungsgedanke mit Vorteil auch beim Deckelteil derartiger Dosen grundsätzlich anwendbar. Although only the base part of a can has been dealt with in the preceding description of exemplary embodiments, the idea of the invention can advantageously also be used in principle with the cover part of such cans.

Claims

ANSPRUCHE EXPECTATIONS
1. Behälter (1), insbesondere Dose, aus dünnwandigem Blech, bestehend aus einem einteilig durch Fließpressen hergestellten, konkaven Bodenteil (2) mit anschließendem, röhrenförmig aufragendem Mittelteil (3) und mit einem auf der dem Bodenteil (2) gegenüberliegenden Seite des Mittelteils (3) befindlichen, mit dem Mittelteil (3) durch Bördeln verbundenen Deckel mit einem eine Behälteröffnung freigebenden Aufreiß Verschluß, dadurch gekennzeichnet, daß zumindest das Bodenteil (2), vorzugsweise jedoch auch das Deckelteil von einem in der Mitte des Bodenteils (2) bzw. Deckelteils liegenden Bereich ausgehende und in Richtung auf den Bodenrand (Rand 5) bzw. Deckelrand zu bis zumindest in die Nähe des Bodenrandes (Rand 5) bzw. Deckelrandes sich erstreckende, gegen quer zum Bodenteil (2) bzw. Deckelteil gerichtete Kräfte versteifend wirkende Versteifungselemente in Form von Rippen, Sicken oder dgl. (4) aufweist.1. container (1), in particular can, made of thin-walled sheet metal, consisting of a one-piece made by extrusion, concave bottom part (2) with subsequent, tubular upstanding middle part (3) and with one on the bottom part (2) opposite side of the middle part (3) located, connected to the central part (3) by crimping with a opening opening a container opening, characterized in that at least the base part (2), but preferably also the cover part, from one in the middle of the base part (2) or The area located in the lid part and extending towards the bottom edge (edge 5) or lid edge to at least in the vicinity of the bottom edge (edge 5) or lid edge, stiffening forces directed transversely to the bottom part (2) or lid part Stiffening elements in the form of ribs, beads or the like. (4).
2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die Rippen, Sicken oder dgl. (4) in dem einer Wölbung des Bodenteils (2) bzw. des Deckelteils entsprechenden Wölbungssinn ausgeführt sind.2. Container according to claim 1, characterized in that the ribs, beads or the like. (4) in the curvature of the bottom part (2) or the lid part corresponding to the direction of curvature.
3. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die Rippen, Sicken oder dgl. (4) in dem einer Wölbung des Bodenteils (2) bzw. Deckelteils entgegengesetzten Wölbungssinn ausgeführt sind.3. Container according to claim 1, characterized in that the ribs, beads or the like. (4) in a curvature of the bottom part (2) or cover part are opposite direction of curvature.
4. Verfahren zum Herstellen des Behälters nach Anspruch 1, dadurch gekennzeichnet, daß die Rippen, Sicken oder dgl. (4) des Bodenteils (2) im Zuge des Fließpreßvorganges beim Herstellen des Bodenteils (2) mit Mittelteil (3) in das Bodenteil (2) eingebracht werden. 4. A method for producing the container according to claim 1, characterized in that the ribs, beads or the like. (4) of the bottom part (2) in the course of the extrusion process in the manufacture of the bottom part (2) with the middle part (3) in the bottom part ( 2) are introduced.
5. Verfahren zum Herstellen des Behälters nach Anspruch 1 , dadurch gekennzeichnet, daß die Rippen. Sicken oder dgl. (4) des Bodenteils (2) in einem gesonderten Arbeitsschritt im Anschluß an den Fließpreßvorgang in das Bodenteil (2) eingebracht werden.5. A method of manufacturing the container according to claim 1, characterized in that the ribs. Beading or the like. (4) of the base part (2) can be introduced into the base part (2) in a separate work step following the extrusion process.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Rippen, Sicken oder dgl. unter Anwendung von in an sich bekannter Weise auf die eine Seite des Bodenteils einwirkendem Flüssigkeitsdruck und Zuhilfenahme von auf der anderen Seite des Bodenteils befindlichen Stützmitteln gebildet werden. 6. The method according to claim 5, characterized in that the ribs, beads or the like. Using liquid pressure acting in a manner known per se on one side of the base part and with the aid of support means located on the other side of the base part.
PCT/DE1998/001554 1996-12-01 1998-06-07 Container, especially a can, made of thin-walled sheet metal WO1999064181A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29723382U DE29723382U1 (en) 1996-12-01 1997-03-05 Containers, in particular cans made of thin-walled sheet metal
PCT/DE1998/001554 WO1999064181A1 (en) 1996-12-01 1998-06-07 Container, especially a can, made of thin-walled sheet metal

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19649626 1996-12-01
DE29723382U DE29723382U1 (en) 1996-12-01 1997-03-05 Containers, in particular cans made of thin-walled sheet metal
DE19708826A DE19708826C3 (en) 1996-12-01 1997-03-05 Containers, especially cans, made of thin-walled sheet metal
PCT/DE1998/001554 WO1999064181A1 (en) 1996-12-01 1998-06-07 Container, especially a can, made of thin-walled sheet metal

Publications (1)

Publication Number Publication Date
WO1999064181A1 true WO1999064181A1 (en) 1999-12-16

Family

ID=27436518

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Application Number Title Priority Date Filing Date
PCT/DE1998/001554 WO1999064181A1 (en) 1996-12-01 1998-06-07 Container, especially a can, made of thin-walled sheet metal

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Country Link
WO (1) WO1999064181A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527085A (en) * 1947-12-02 1950-10-24 Kenneth S Snow Aluminum lightweight basket
FR1507768A (en) * 1967-01-11 1967-12-29 Hesser Ag Maschf Packaging container, especially for liquids
US4037752A (en) * 1975-11-13 1977-07-26 Coors Container Company Container with outwardly flexible bottom end wall having integral support means and method and apparatus for manufacturing thereof
US4245685A (en) * 1978-08-15 1981-01-20 Mallinckrodt, Inc. Protective carrier
US4953738A (en) * 1988-02-19 1990-09-04 Stirbis James S One piece can body with domed bottom
DE19613765A1 (en) * 1996-04-04 1997-10-09 Rudolf Klaschka Reinforced capacitor housing of fluid material especially aluminium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527085A (en) * 1947-12-02 1950-10-24 Kenneth S Snow Aluminum lightweight basket
FR1507768A (en) * 1967-01-11 1967-12-29 Hesser Ag Maschf Packaging container, especially for liquids
US4037752A (en) * 1975-11-13 1977-07-26 Coors Container Company Container with outwardly flexible bottom end wall having integral support means and method and apparatus for manufacturing thereof
US4245685A (en) * 1978-08-15 1981-01-20 Mallinckrodt, Inc. Protective carrier
US4953738A (en) * 1988-02-19 1990-09-04 Stirbis James S One piece can body with domed bottom
DE19613765A1 (en) * 1996-04-04 1997-10-09 Rudolf Klaschka Reinforced capacitor housing of fluid material especially aluminium

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