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EP0390222A1 - Récipient avec bonde - Google Patents

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Publication number
EP0390222A1
EP0390222A1 EP19900106267 EP90106267A EP0390222A1 EP 0390222 A1 EP0390222 A1 EP 0390222A1 EP 19900106267 EP19900106267 EP 19900106267 EP 90106267 A EP90106267 A EP 90106267A EP 0390222 A1 EP0390222 A1 EP 0390222A1
Authority
EP
European Patent Office
Prior art keywords
bung
collar
container according
plug
ring
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
EP19900106267
Other languages
German (de)
English (en)
Other versions
EP0390222B1 (fr
Inventor
Klaus Dietrich
Roland Winkler
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP0390222A1 publication Critical patent/EP0390222A1/fr
Application granted granted Critical
Publication of EP0390222B1 publication Critical patent/EP0390222B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B65D1/20—Cans, casks, barrels, or drums characterised by location or arrangement of filling or discharge apertures
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0041—Bungs, e.g. wooden or rubber, for barrels or the like
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08—Threaded or like closure members secured by rotation; Bushes therefor
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08—Threaded or like closure members secured by rotation; Bushes therefor
    • B65D39/082—Bung-rings and bungs for bung-holes
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/0442—Collars or rings

Definitions

  • the invention relates to a bung container made of a metallic material with at least one bung hole which can be closed in a liquid-tight manner by means of a bung plug.
  • Sheet piling made of metallic materials and especially sheet piling made of steel are packaging for liquid, but also for solid, pourable filling goods and are described, for example, in DIN 6643.
  • DIN 6643 solid, pourable filling goods
  • sheet pans have an opening which is smaller than the inside diameter of the container and which is used for filling, emptying and venting the container.
  • This opening can usually be closed by means of a security lock.
  • the bung container usually has a so-called Tri-Sure flange and a corresponding plug.
  • DIN 6643 part 2.
  • the Tri-Sure flange is manufactured as a separate part regardless of the actual container.
  • the flange is inserted into a container by means of an immersion process, in which a seal adapted to the contents must be inserted between the container wall and the flange (cf. DIN 6643, Part 2, V1 safety seal).
  • the production is complex because the flange is produced independently of the container.
  • the pressure resistance of the flange is comparatively low.
  • the invention is based on the object of developing a bung container with at least one bung hole which can be closed in a liquid-tight manner by means of a bung plug in such a way that the container is easy to manufacture with great pressure resistance.
  • the bung container according to the invention should still be able to meet DIN 6643.
  • the bunghole surrounds a collar made of the metal material of the container, which has at least one locking element for holding the bung plug and on which a sealing surface is provided, a density between the bung plug and the bung plug element for sealing the bung hole can be inserted.
  • the sealing surface is always provided on a container part which is formed in one piece with the container wall. With this design, no leaks can occur between the container wall and the sealing surface.
  • the locking element is attached to a ring which is permanently connected to the collar, for example by a welded connection, it is not the tightness that matters, but only the strength of the permanent connection.
  • the seal provided in conventional tri-sure flanges between the container wall and the actual flange element can even be dispensed with if - as characterized in claim 3 - the locking element is attached to a ring which is permanent with the collar connected is.
  • the omission of the seal inserted between the container wall and the flange and adapted to the filling material results in significant manufacturing savings.
  • the design according to the invention makes it possible either to form the locking element in one piece with the collar (claim 2) or to connect it to the collar by means of a much simpler manufacturing process than immersion, such as welding (claim 8).
  • the one-piece design further simplifies production, since there is no need to produce the flange or locking element in a separate production step.
  • the locking element according to claim 9 is introduced into the collar by means of a non-cutting process, since the collar wall is then not weakened.
  • the locking element can, for example, have an internal thread on the inside of the collar, and an external thread on the Outside of the collar or according to claim 7, a bayonet-engaging element, to which corresponding counter-elements on the bung plug are assigned.
  • the thread and in particular the internal thread extends only over part of the circumference of the collar or the additional ring.
  • the locking elements are designed in such a way that "standard bung plugs" can be used.
  • the collar and the plug have a (flat) contact surface (claim 10), between which the sealing element can be used, which can be, for example, an O-ring .
  • the collar can protrude outwards or inwards, depending on whether the full emptiness of the sheet container (claim 12) or the protection of the closure from damage (claim 13) are in the foreground.
  • a bulge made of the material of the container, the height of which is greater than that of the collar, can surround the collar (claim 14), or a support ring can also be provided (claim 15).
  • a stiffening of the bung container according to the invention in the bunghole area can also be achieved in that the collar according to claim 16 in the manner of an "S" is bent both outwards and inwards.
  • Fig. 1 shows a first embodiment of the invention, in which the collar is "molded" from the metallic material, for example a steel alloy of the container lid 1, and in which the locking element 21 on the collar 2 is an external thread introduced into the latter, into which an the internal plug 31 provided for the bung plug 3 is screwed in. Furthermore, the collar 2 has a bead-like elevation 2 ', the stiffening of the bung area and the better emptying of the bung serves.
  • the embodiments shown in the sub-figures a and b differ in the arrangement of the sealing surfaces 62 and 63 provided on the collar 2 and the sealing element 6 designed as an O-ring.
  • the O-ring 3 is on the inside ", so that the screw connection remains” dry ", while in the embodiment shown in Fig. 1b the O-ring 6 rests on the bead-like elevation 1 '.
  • the sealing function is guaranteed in both embodiments regardless of the tightness of the threaded connection.
  • FIG. 2 shows a second exemplary embodiment of the invention, in which the collar 2 has an internal thread 21 as a locking element and, corresponding to the bung plug 3, an external thread 31 as a counter element.
  • the collar 2 is not molded out of the container lid 1 ′′, but is produced by pressing the material of the container lid 1.
  • FIGS. 2a and 2b differ in the arrangement of the sealing element 6, which is again in the form of an O-ring, and the sealing surfaces 62 and 63 on the collar 2 and on the bung plug 3, respectively.
  • the exact design of the sealing surfaces is expressly referred to the drawing.
  • the embodiment shown in Fig. 2a has the advantage that with a suitable shape and cord thickness of the O-ring 6, the complementary curvature of the collar 1 results in a comparatively large contact surface, while the embodiment shown in Fig. 2b has the advantage that the O-ring 6 is guided in a groove on the plug 3.
  • FIG. 3 shows a third exemplary embodiment of the invention, in which the collar 2, as in the exemplary embodiment according to FIG. 1, has been "shaped" out of the material from the container lid 1 by flanging, deep-drawing, pressing, etc.; unlike in the exemplary embodiment according to FIG. 1, the collar 2, however, has an internal thread 21 as a locking element, which is in engagement with a corresponding external thread 31 on the bung plug 3.
  • FIGS. 3a to 3h differ in the arrangement of the sealing element, again formed as an O-ring 6, and the corresponding sealing surfaces 62 on the collar 2 and 63 on the bung plug 3. of the various possible embodiments, reference is expressly made to the drawing. Furthermore, the different embodiments differ in the design of the collar, which partially has bead-like stiffeners, but in other embodiments is as simple as possible to simplify production.
  • FIGS. 3b and 3c have the advantage that standard plug 3 with standard threads (2 "and 3/4 inches) can be used.
  • the sealing element lies at the extreme end of the threaded connection.
  • FIGS. 3d to 3f also have an external sealing element 6; however, the sealing element 6 and the sealing surfaces 61 and 62 are arranged such that the sealing function is ensured regardless of the threaded connection.
  • the individual embodiments differ only in the shape of the collar 2 and the plug 3.
  • the O-ring 6 is arranged "before" the threaded connection, so that it remains “dry”.
  • Fig. 4 shows a fourth embodiment of the invention, in which the collar 2 is introduced not in the outside but in the form of a "U".
  • the collar in turn has an internal thread 21 to which a corresponding external winch 31 on the bung plug 3 is assigned.
  • 2 bores 22 are provided in the collar, which ensure that the sheet container can be completely emptied.
  • the embodiment shown in FIG. 4b differs from the embodiment according to FIG. 4a in that a flat bearing surface 62 is provided on the collar 2.
  • 5a to 5c, 6a to 6c and 7a to 7c show three variants of a bayonet locking mechanism.
  • Fig. 5 shows an embodiment of a bayonet locking mechanism with externally encompassing connection of the plug 3 with the collar 2.
  • Both the collar 2 and the plug 3 have suitable locking elements 21 and 31 shown in the drawing.
  • the arrangement of the sealing element, again designed as an O-ring 6, is selected so that it cannot be displaced by internal or external pressure.
  • tabs 32 are attached to this.
  • FIG. 6 differs from the embodiment shown in FIG. 5 in that the connection of the bung plug 3 to the collar 2 is on the inside.
  • the position of the sealing element 6 is in turn designed so that it cannot be displaced by the contents.
  • tabs 32 are provided to prevent rotation.
  • FIG. 7 differs from the embodiment shown in FIG. 6 and largely corresponds to the embodiment of FIG. 5, but it has a different shape spec. in the sealing area.
  • the slope of the bayonet connection can be selected so that the desired prestressing of the seal is achieved.
  • the bung plug connection is used for the manufacture of the bayonet flange no additional material is required because the flange can be completely molded out of the container lid 1.
  • FIGS. 8a to 8c show variants of an eighth exemplary embodiment, in which a support ring 7 is attached to the container lid 1, which supports the collar 2 from the outside and thus increases the safety against bursting.
  • the support ring 7 is “flanged” to the collar 2, in the example shown in FIG. 8c, however, is welded by means of welding spots 71.
  • the variants shown differ in the shape of the collar and the position and design of the sealing element 6 and the sealing surfaces. For this purpose, reference is expressly made to the graphic representation.
  • FIGS. 9a to 9c show in a similar representation as FIGS. 5 to 7 an embodiment with a bayonet lock and additionally with welding points or a Welded seam 71 welded support ring 7 to increase burst safety. To avoid repetition, reference is made to the description of FIGS. 5 to 7 with regard to the other features of this exemplary embodiment.
  • 10a and 10b show embodiments of a further exemplary embodiment of the invention, in which a collar 2 is in turn formed from the material of the container lid 1, into which a ring 4 with an internal thread 21 is introduced, which is held on the circumference by welding points 41.
  • the position of the seal is chosen so that it is independent of the ring 4 introduced.
  • the thread e.g. 3/4 "or 2"
  • the position of the seal 6 are selected such that commercially available bung plugs 3 can be used, and the sealing function is independent of the internal threaded ring 4.
  • 11a to 11c show embodiments of an embodiment with a "shortened" collar height.
  • the collar 2 is produced by simply flanging the material of the container 1 outwards, which forms the sealing surface.
  • An inwardly extending threaded ring 4 is attached to the flange by welding spots 41 on the circumference.
  • FIGS. 11b and 11c differ from the variant shown in FIG. 11a by the shape of the flanging and thus the arrangement of the sealing surface or the sealing element 6. Furthermore, 4 bores 22 are provided in the attached ring, which one allow complete emptying of the container. Farther is the internal thread on the ring 4 so that commercially available bung plug can be used.
  • 12a to 12f show locking options in which the collar 2 is produced by simply flanging it outwards.
  • An internal threaded ring 4 is placed on the container lid 1 and fastened with welding points 41.
  • the seal is independent of the threaded connection between the plug 3 and ring 4 by a seal 6 between the plug 3 and the collar 2 created by flanging.
  • the internal threaded ring 4 is turned out on one side in order to achieve the largest possible internal diameter.
  • FIG. 12b has a similar structure, but additionally has a flange on the ring 4, which allows the use of resistance welding for fastening.
  • the variant according to FIG. 12c has no turning on the ring 4, so that it is simpler in terms of production technology.
  • FIGS. 12d to 12f are constructed similarly to the variant shown in FIG. 12c, and differ essentially only in the design of the flanging and thus the seal 6.
  • FIG. 13 shows an exemplary embodiment in which the collar 2 is produced by deep-drawing an annular protuberance from the unperforated container material 1 with subsequent punching and further deep-drawing. For example, a 2 "or 3/4" thread is pressed into the double wall produced in this way. The thread design and the position of the sealing surface are selected such that common bung plugs 3 can be used. With 22 there are corresponding holes in the "double" collar 2, which allow a complete emptying of the container.
  • FIG. 14 shows an exemplary embodiment similar to the exemplary embodiment according to FIG. 13, in which an improved burst protection is achieved by an additional annular protuberance 2 ′ in the manner of a bead or the like.
  • Fig. 15 shows an embodiment in which the protuberance 2 forming the collar is designed so that it largely shields the plug 3 when the container falls down. Otherwise, this exemplary embodiment is largely similar to the exemplary embodiments according to FIG. 14 or 15.
  • FIGS. 16 and 17 also show the exemplary embodiment according to FIG. 13, in which the ring-shaped protuberance is pressed outward until the three walls lie next to one another without an intermediate gap by means of an additional shaping process. Then the thread can be pressed in.
  • FIGS. 16 and 17 lie in the sequence of the individual wall parts.
  • FIGS. 20a to 20d show a flange according to the invention in a side view, in a top view, in a further side view and in perspective:
  • Threaded segments 21 are used to fasten the sealing plug 3. These threaded segments are produced with thread-like punches 10 which press the collar wall 2 against a corresponding threaded mandrel 11. While the stamp presses 10 parts of the collar wall into the threaded mandrel, the remaining flange areas are fixed in a form-fitting manner by correspondingly designed radial hold-down devices 12. With the help of an axial hold-down device 13, the cover 1 and the collar 2 are positioned and held during the thread production. The mandrel is then turned out.
  • a further improvement in production is achieved if axially movable slides are provided in the recesses between the thread segments. This has the advantage that when pressing the thread with the thread punches in the segmented mandrel through the shoot Can be supported on the unworked wall of the collar 2, and then the mandrel can be extended from the flange as described above.
  • the sealing surface 61 is supported during manufacture by suitable receptacles so that it keeps its shape within permissible tolerances.
  • integrated and / or additional shaping work can be provided during production, for example, with which additional stiffening beads are produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP90106267A 1989-03-31 1990-04-02 Récipient avec bonde Expired - Lifetime EP0390222B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910475 1989-03-31
DE3910475 1989-03-31

Publications (2)

Publication Number Publication Date
EP0390222A1 true EP0390222A1 (fr) 1990-10-03
EP0390222B1 EP0390222B1 (fr) 1995-03-15

Family

ID=6377554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106267A Expired - Lifetime EP0390222B1 (fr) 1989-03-31 1990-04-02 Récipient avec bonde

Country Status (6)

Country Link
US (1) US5305906A (fr)
EP (1) EP0390222B1 (fr)
JP (1) JPH0385250A (fr)
AT (1) ATE119841T1 (fr)
CA (1) CA2013567A1 (fr)
DE (1) DE59008686D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549017A3 (en) * 1991-12-05 1993-09-08 Tanks & Drums Limited Closure neck for drums or the like

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US5709313A (en) * 1995-06-22 1998-01-20 E & H Investments Drum outlet construction
US5862936A (en) * 1996-09-27 1999-01-26 Sonoco Products & Company Bung for a pressure vessel
US5752464A (en) * 1996-12-17 1998-05-19 King; Thomas N. Pet feeding apparatus
US6167682B1 (en) 1998-10-19 2001-01-02 Robert B. Moon Bung closure and center orifice
FR2803780B1 (fr) * 2000-01-19 2002-04-19 Gallay Sa Procede de realisation d'une bonde d'un fut metallique
DE20207474U1 (de) * 2002-05-13 2002-08-08 Dagn, Josef, Kössen, Tirol Verschlusskappe, insbesondere zum Verschließen eines Ölfilteranschlusses
US7513387B2 (en) * 2004-06-08 2009-04-07 Rieke Corporation Closure assembly for a container
USD526758S1 (en) * 2004-06-08 2006-08-15 Rieke Corporation Internally-threaded flange for a drum head
US7464830B2 (en) * 2004-06-08 2008-12-16 Rieke Corproation Closure assembly for a container
JP4705383B2 (ja) * 2005-03-01 2011-06-22 三共工業株式会社 コインランドリー
ITUD20060041A1 (it) * 2006-02-27 2007-08-28 Illycaffe Spa Apparecchiatura per la realizzazione di un coperchio metallico,procedimento per la realizzazione di tale coperchio e coperchio metallico cosi' realizzato
JP5080095B2 (ja) * 2007-01-31 2012-11-21 Ｊｆｅ協和容器株式会社 金属容器用口金フランジ、及びドラム缶
US20080236958A1 (en) * 2007-03-29 2008-10-02 Debiasi International Limited Pressure vessel for vehicular air brake system
US9578765B2 (en) * 2008-07-25 2017-02-21 Robroy Industries, Inc. Hole plug device

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US2337456A (en) * 1939-04-22 1943-12-21 American Flange & Mfg Container closure construction
US2299183A (en) * 1939-12-29 1942-10-20 Petroleum Iron Works Company Sheet metal barrel or drum
US2339255A (en) * 1940-09-18 1944-01-18 United Steel Barrel Company Fluid-tight closure means
US2447535A (en) * 1944-11-28 1948-08-24 Robinson Joseph Container closure
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549017A3 (en) * 1991-12-05 1993-09-08 Tanks & Drums Limited Closure neck for drums or the like

Also Published As

Publication number Publication date
US5305906A (en) 1994-04-26
EP0390222B1 (fr) 1995-03-15
DE59008686D1 (de) 1995-04-20
JPH0385250A (ja) 1991-04-10
ATE119841T1 (de) 1995-04-15
CA2013567A1 (fr) 1990-09-30

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