EP0453429B1 - Fass mit Ausbuchtungen - Google Patents

Fass mit Ausbuchtungen Download PDF

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Publication number
EP0453429B1
EP0453429B1 EP91870034A EP91870034A EP0453429B1 EP 0453429 B1 EP0453429 B1 EP 0453429B1 EP 91870034 A EP91870034 A EP 91870034A EP 91870034 A EP91870034 A EP 91870034A EP 0453429 B1 EP0453429 B1 EP 0453429B1
Authority
EP
European Patent Office
Prior art keywords
ring wall
barrel
lid
expansion
diameter
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 - Lifetime
Application number
EP91870034A
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English (en)
French (fr)
Other versions
EP0453429A2 (de
EP0453429A3 (de
Inventor
Bernard Wantiez
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.)
BLAGDEN PACKAGING NV
Original Assignee
BLAGDEN INDUSTRIES PLC
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Filing date
Publication date
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Publication of EP0453429A3 publication Critical patent/EP0453429A3/de
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Publication of EP0453429B1 publication Critical patent/EP0453429B1/de
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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
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape
    • B65D7/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape of curved cross-section, e.g. cans of circular or elliptical cross-section
    • B65D7/045—Casks, barrels, or drums in their entirety, e.g. beer barrels, i.e. presenting most of the following features like rolling beads, double walls, reinforcing and supporting beads for end walls

Definitions

  • the invention relates to a barrel intended, in particular for transporting liquid, viscous or pulverulent materials, as well as to a process for the manufacture of this barrel.
  • the barrel is particularly suitable for hot filling, a method which is increasingly used in the packaging sector; the barrel according to the invention also meets standards of increased severity in terms of safety, environmental protection and size.
  • the barrel according to the invention is used in all cases where increased resistance to mechanical stress is required, and more particularly when the barrel is brought to undergo an internal depression.
  • Another weak point of the barrel is its bottom.
  • the vibrations generated by the vehicle cause stresses on the bottom in the vertical (axial) direction due to the movements of the load. This results in risks of fracture at the periphery of the bottom.
  • the barrel manufacturer is limited in its research by the need to respect dimensions and standardized capacities; the drums must in particular have a maximum overall diameter compatible with the width of maritime containers standardized by ISO so that a whole number of drums per row can be placed in the width of such a container.
  • Application DE-A-2 738 946 describes a method of forming by rolling outward moldings and rods on the shell of a barrel.
  • the moldings reinforce the barrels thus formed in the radial direction.
  • cylindrical sections which poorly support a depressurization of these barrels.
  • Document DE-C-611 440 describes a method of manufacturing metal drums from a cylindrical blank threaded on an expansion mandrel; the metal of the blank is shaped without work hardening, the gain in diameter being taken up over the length of the blank. The bulging shape of the barrel thus formed causes a significant loss of space.
  • This document serves as a preamble to claim 13.
  • Such a barrel also has less good rigidity in the axial direction.
  • the patent FR-A-15 68019 which corresponds to the preamble of claim 1, describes a barrel whose cylindrical body has two sets of moldings and two ends in the trunk of a cylinder.
  • the barrel described in FR-A-1568019 is not designed to withstand internal depression; it has a retractable conical cover.
  • the object of the invention is to make available to users a barrel resistant to internal depression, without appreciable increase in manufacturing costs.
  • the object of the invention is also the placing on the market of drums suitable for hot filling and supporting the constraints imposed by high production rates and the vertical constraints due to stacking.
  • Another object of the invention is to preserve a smooth range (called “decoration range”) without altering the resistance of the barrel.
  • Another object of the invention is also to be able to produce in particular a 216 liter barrel suitable for ISO transport containers, and which can be aligned, in particular in rows of four, over the width of a container, according to a square mesh and without wasting space.
  • the subject of the invention is a barrel, for the transport of liquids and pulverulent materials according to the preamble of claim 1, comprising annular sections being in the form of plump barrels, said annular sections and rods being made of steel hardened by expanding their circumference so that the drum offers increased resistance to internal depression.
  • One and even two ends in the trunk of the cylinder of the ferrule are advantageously made of cold-worked steel by expansion of their circumference.
  • the barrel cover is a bung cover crimped to the ferrule; in another preferred form, the cover is a full opening cover held in place by a ring.
  • the internal diameter of the cover is larger than the external diameter of the bottom, so that identical drums can be stacked on top of each other with embedding.
  • the bottom of the barrel is crimped to the ferrule.
  • the bottom comprises a circular central part which is connected to an interlocking ring attached to the shell by a frustoconical crown, a circular groove being formed at the periphery of this crown, the circular central part extending substantially in the same plane as the end of the crimping of the ferrule.
  • the barrel advantageously has three sections and two rods; it comprises, according to a preferred embodiment, a cover which has a conformation favoring the complete flow of the contents when the barrel is turned upside down, cover down.
  • the shell of the barrel has a side strip capable of receiving a decorative coating.
  • the rods have a diameter smaller or equal to that of the bulged part of the barrels.
  • the invention also relates to a process for the manufacture of a metal barrel according to the preamble of claim 13.
  • the metal of the ferrule, in the distended parts, is hardened and formed so that the whole of the ferrule is made up of sections in the form of bell-shaped barrels, the successive barrels being connected to each other via a rod pushed outwards, the largest diameter of which is less than or equal to the largest diameter of the barrels, the lower and upper parts of the shell each consisting of a cylinder trunk; the cover and the bottom are secured to the ends of the ferrule.
  • one proceeds to the cold expansion of one of the ends in the trunk of the cylinder of the ferrule, which is thus also made of cold-worked steel.
  • one proceeds to the cold expansion of the two ends in the trunk of the cylinder, so that they are both made of work hardened steel.
  • Another advantage is that the shaping method is quick.
  • Another advantage is that, since the distortion of the metal is relatively limited in the decoration range, it is possible to pre-print the strip metal, the final pattern being hardly affected by the shaping of the ferrule, or even to a decoration. with the stencil after forming, the stencil being able, by its flexibility, to marry the slight curvature of the metal.
  • Another advantage is that the barrel is self-supporting, devoid of prominent bearing rods sensitive to knocks.
  • Fig. 1 schematically shows a barrel according to the invention, as a whole.
  • the shell 1 of the barrel is formed of three sections, each of these sections 2 being separated from the adjacent section 2 by a rod 3.
  • These rods 3 do not exceed a plane tangent to the wall and therefore serve essentially as stiffeners and not as rolling rods.
  • Each of the sections 2 is barrel-shaped.
  • This barrel shape allows them to take up, without significant deformation, both the axial and radial stresses. Particularly sought-after advantage, this shape takes up both the radial stresses due, for example, to the overpressure as well as those caused by the depression of the barrel.
  • the barrel as a whole, has no prominent part and allows, for example, to produce barrels of 216 liters while respecting a maximum lateral dimensions of 585 mm; one can place four drums of 216 liters to ISO standards thus conformed side by side over the width of a standard ISO maritime container, which results in a substantial space saving compared to other drums of conventional manufacture.
  • Fig. 2 schematically shows a sectional view of a side wall segment.
  • the line in dotted lines 4 indicates the initial position of the wall of the blank, before it is shaped by expansion.
  • the side wall in its central part does not intersect at any point with the line in the axis 4; the wall of the blank has therefore been stretched at all points from the part shown here, so that the ferrule 1 is formed over almost its entire length, after its shaping, of cold-worked metal, more resistant and more elastic than the starting metal.
  • This mechanical treatment contributes to reinforcing the advantage already conferred by the "barrel" shape of each section 2.
  • the barrel shape shown in FIG. 2 is accentuated for the purposes of good understanding.
  • the difference in length of the radius of a barrel, between its central part (the widest) and its terminal parts, may not exceed 2% (or about 5 mm), which is barely detectable at the eye.
  • the more swollen central part 5 is extended on both sides by a connection curve 6 and is connected to a rod 3 which forms a transition with the adjacent section and stiffens the barrel in the radial direction.
  • the barrels 5 of the two sections 2 arranged in on either side of the central section 2 have a substantially identical shape to the barrels 5 of the central section 2, these barrels 5 are connected by a connection curve 6 to the rod 3, on the one hand, and at the end cylindrical of the ferrule, on the other hand.
  • each section 2, and even the central section 2 which is normally the most stressed, can optimally resist vertical, radial mechanical stresses as well as over- or under pressure.
  • the increase in the diameter of the blank goes hand in hand with a reduction in the thickness of the metal used.
  • This reduction in thickness is largely offset by the advantageous mechanical effect due to the work hardening of the metal and the shape of the shell.
  • the barrel shape of a section 2 is connected, at the lower end of the barrel, to a part in the trunk of a cylinder 7 of diameter which may be equal to or slightly greater than that of the initial blank.
  • the diameter of this part in the trunk of a cylinder 7 remains, however, several sheet thicknesses smaller than the maximum diameter of the barrels, so that if the ferrule 1 is joined to the bottom 8 by crimping, the outside diameter of the crimping bead 9 remains below or equal to the maximum diameter of the barrel as a whole.
  • the angle 10 formed by the bottom 8 and its rim is, in a manner known to those skilled in the art, a weak point, which undergoes significant fatigue due to the vibrations of the bottom 8 during transport.
  • This effect is greatly attenuated in the barrel according to the invention by the mounting of a so-called "anti-vibration" bottom which has a flexible peripheral groove 11, which attenuates vibrations, and by the presence of a conical crown 12 by which the bottom 8 is brought back in the same plane 13 as the crimping bead 9, so that, when the barrel is filled and arranged vertically, it effectively rests on its bottom 8.
  • the area of the angle 10 is therefore practically no longer affected by the tremors due to transport.
  • a mandrel is inserted into this blank, the segments of which can be moved radially outward, causing both the shaping and the drawing of the metal of the blank.
  • the metal While adjusting to the dimensions of the ferrule, the metal is hardened, which improves its mechanical properties.
  • the expansion mandrel makes it possible to give the shell, in a single operation, a complex shape.
  • the different sections are given a barrel shape, which gives the barrel excellent mechanical qualities. These combine with the enhanced qualities of the ferrule steel to give a high quality barrel.
  • Fig. 4 illustrates the dimensional relationships between the different parts of the barrel 1.
  • the ends have been left at a diameter R1, R2 close to that of the blank and are therefore practically not hardened. If we want the barrels to stack with interlocking, we choose R3 (outside diameter at the base) smaller or equal to R2 (inside diameter of the cover 14).
  • R5 maximal radius of the rods
  • R6 maximum radius of the barrels
  • the shape of the barrel shown here is in no way limiting and that, depending on the requirements of solidity, it may have a number of sections 2 more or less high, rods 3 of various shapes and more or less salient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Basic Packing Technique (AREA)

Claims (16)

  1. Faß für den Transport von Flüssigkeiten und pulverförmigen Materialien, mit einem Deckel (14), einem Boden (8) und einer Wandung (1) aus ringförmigen Abschnitten (2) mit zwischen diesen ausgebildeten ringförmigen Wülsten (3) und mit zwei zylindrischen Endstücken (7), dadurch gekennzeichnet, daß die Abschnitte (2) als bauchige Tönnchen ausgebildet sind und die Abschnitte (2) und die Wülste (3) aus kaltverfestigtem Stahl durch Erweiterung ihres Umfangs gebildet sind, derart, daß das Faß gegen eine Zusammendrückung nach innen einen erhöhten Widerstand bietet.
  2. Faß nach Anspruch 1, dadurch gekennzeichnet, daß eines der zylindrischen Endstücke (7) der Wandung (1) ebenfalls aus kaltverfestigtem Stahl durch Erweiterung seines Umfangs gebildet ist.
  3. Faß nach Anspruch 1, dadurch gekennzeichnet, daß die zwei zylindrischen Endstücke (7) der Wandung (1) aus kaltverfestigtem Stahl durch Erweiterung ihres Umfangs gebildet sind.
  4. Faß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Deckel (14) als Spundlochdeckel ausgebildet und mit der Wandung (1) umgebördelt ist.
  5. Faß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Deckel (14) als völlig zu öffnender Deckel ausgebildet und mittels eines Rings an seinem Platz gehalten ist.
  6. Faß nach Anspruch 5, dadurch gekennzeichnet, daß der Innendurchmesser des Deckels (14) größer ist als der Außendurchmesser des Bodens (8), so daß gleiche Fässer mit Ineinanderfügung aufeinander stapelbar sind.
  7. Faß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Boden (8) mit der Wandung (1) umgebördelt ist.
  8. Faß nach Anspruch 7, dadurch gekennzeichnet, daß der Boden einen kreisförmigen mittleren Bereich (8) aufweist, der mittels eines kegelstumpfförmigen Kranzes (12) an einen mit der Wandung (1) verbundenen ringförmigen Teil angeschlossen ist, wobei am Umfang des Kranzes (12) eine kreisförmige Nut (11) ausgebildet ist, und wobei sich der kreisförmige mittlere Bereich (8) im wesentlichen in der gleichen Ebene erstreckt wie das Ende der Umbördelung (9) der Wandung (1).
  9. Faß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es drei Abschnitte (2) und zwei Wülste (3) aufweist.
  10. Faß nach Anspruch 4, dadurch gekennzeichnet, daß der Deckel (14) eine die völlige Entleerung des Inhaltes begünstigende Form hat, wenn das Faß mit dem Deckel (14) nach unten umgedreht ist.
  11. Faß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Wandung (1) ein seitliches Band für die Aufnahme eines dekorativen Anstrichs aufweist.
  12. Faß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Wülste (3) einen kleineren oder gleichen Durchmesser aufweisen wie die ausgewölbten Bereiche (5) der Tönnchen.
  13. Verfahren für die Herstellung eines metallischen Fasses mit einer Wandung (1), sowie mit einem Deckel (14) und einem Boden (8), befestigt an den obersten bzw. untersten Enden der Wandung (1), wobei man einen zylindrischen Mantel herstellt, dessen Durchmesser kleiner oder gleich ist wie der Durchmesser der Wandung des fertiggestellten Fasses in ihrem am meisten eingeschnürten Bereich, und wobei man die Kaltausdehnung dieses zylindrischen Mantels auf einer Aufweitvorrichtung durchführt, dadurch gekennzeichnet, daß das Metall der Wandung in den gedehnten Bereichen kaltverfestigt und so geformt wird, daß die gesamte Wandung sich aus Abschnitten (2) in Form von bauchigen Tönnchen (5) zusammensetzt, die durch dazwischenbefindliche nach außen gewölbte Ringe (3) aufeinanderfolgend aneinander anschließen, deren größter Durchmesser kleiner oder gleich ist wie der größte Durchmesser der Tönnchen (5), und daß die Enden der Wandung je von einem Zylinderstumpf gebildet sind, der einen größeren oder gleichen Durchmesser wie der Durchmesser des Umrisses aufweist, und daß man den Deckel und den Boden auf den Enden der Wandung befestigt.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß man die Kaltaufweitung eines der zylinderstumpfförmigen äußersten Enden (7) der Wandung (1) so durchführt, daß sie aus kaltverfestigtem Stahl gebildet ist.
  15. Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß man die Kaltaufweitung beider zylinderstumpfförmiger äußerster Enden (7) der Wandung (1) so durchführt, daß sie gleichermaßen aus kaltverfestigtem Stahl gebildet sind.
  16. Verfahren nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, daß die Aufweitung der Wandung (1) die folgenden Arbeitsgänge aufweist:
    - Einbringen eines mit radial nach außen bewegbaren Segmenten versehenen Aufweitlocheisens in den zylindrischen Mantel,
    - radiale Verschiebung der Segmente des Aufweitlocheisens, so daß das Ausweiten des Mantels bewirkt wird, bis dieser Mantel die gewünschte Form erreicht hat.
EP91870034A 1990-02-27 1991-02-27 Fass mit Ausbuchtungen Expired - Lifetime EP0453429B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9002424 1990-02-27
FR9002424A FR2658799B1 (fr) 1990-02-27 1990-02-27 Fut expanse.

Publications (3)

Publication Number Publication Date
EP0453429A2 EP0453429A2 (de) 1991-10-23
EP0453429A3 EP0453429A3 (de) 1991-10-30
EP0453429B1 true EP0453429B1 (de) 1993-10-13

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ID=9394179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91870034A Expired - Lifetime EP0453429B1 (de) 1990-02-27 1991-02-27 Fass mit Ausbuchtungen

Country Status (4)

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EP (1) EP0453429B1 (de)
DE (1) DE69100497T2 (de)
ES (1) ES2046882T3 (de)
FR (1) FR2658799B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113997025B (zh) * 2021-11-26 2022-09-13 浙江惠文美炉具有限公司 炉具桶体全自动生产工艺以及设备

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568019A (de) * 1968-01-09 1969-05-23

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE611440C (de) * 1927-12-18 1935-03-29 Pressed Steel Tank Company Verfahren zur Herstellung von Metallfaessern
US1758929A (en) * 1928-06-27 1930-05-20 John J Cain Method of making metal barrels and the like
FR1349042A (fr) * 1963-03-05 1964-01-10 Metal Containers Ltd Récipient en tôle métallique et procédé de fabrication de ce récipient
DE2947603C2 (de) * 1975-10-08 1981-10-15 Schütz, Udo, 5418 Selters Palettenbehälter
DE3338090A1 (de) * 1983-10-20 1985-05-02 Rheinpfälzische Emballagenfabrik G. Schönung & Co, 6730 Neustadt Verfahren zur unterbringung von faessern der groesse eines 55 us-gallonen-fasses in einem iso-container und derart ausgebildetes fass

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568019A (de) * 1968-01-09 1969-05-23

Also Published As

Publication number Publication date
FR2658799A1 (fr) 1991-08-30
EP0453429A2 (de) 1991-10-23
EP0453429A3 (de) 1991-10-30
ES2046882T3 (es) 1994-02-01
FR2658799B1 (fr) 1992-07-03
DE69100497D1 (de) 1993-11-18
DE69100497T2 (de) 1994-05-11

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