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EP0614434A1 - Drum with drum closure. - Google Patents

Drum with drum closure.

Info

Publication number
EP0614434A1
EP0614434A1 EP93901507A EP93901507A EP0614434A1 EP 0614434 A1 EP0614434 A1 EP 0614434A1 EP 93901507 A EP93901507 A EP 93901507A EP 93901507 A EP93901507 A EP 93901507A EP 0614434 A1 EP0614434 A1 EP 0614434A1
Authority
EP
European Patent Office
Prior art keywords
drum
insert
sealing ring
collar
flange
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
EP93901507A
Other languages
German (de)
French (fr)
Other versions
EP0614434B1 (en
Inventor
Herman Paul Kars
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.)
Greif International Holding BV
Original Assignee
Koninklijke Emballage Industrie Van Leer BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19860000&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0614434(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Emballage Industrie Van Leer BV filed Critical Koninklijke Emballage Industrie Van Leer BV
Publication of EP0614434A1 publication Critical patent/EP0614434A1/en
Application granted granted Critical
Publication of EP0614434B1 publication Critical patent/EP0614434B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • 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
    • B65D39/084—Separated bung-rings made by one element

Definitions

  • the invention relates to a drum with a drum closure provided in a drum wall, comprising an insert and a shut-off cap which can be placed in the insert, which insert is situated in a collar on the drum wall pointing towards the outside of the drum, and has a first flange which rests against the inside of the drum wall, and a second flange which is flanged radially outwards over the collar, and also a sealing ring which is wedged between the first flange and the inside of the drum wall.
  • Such a drum is generally known.
  • the first flange is firmly pressed against the drum wall, in such a way that the sealing ring is compressed to provide the required seal.
  • the second flange is then flanged over the collar. The result of this is that the sealing ring can be held firmly wedged with pre-tension between the first flange and the drum wall.
  • the object of the invention is therefore to equip a drum of the type described above with an improved closure, in such a way that even if the drum falls on the closure the seal will still remain.
  • an additional seal which may or may not be connected to the sealing ring, is provided between the collar and the insert lying opposite.
  • the additional seal is a loose second sealing ring which is compressed in the radial direction between collar and insert.
  • the insert can slide inwards along the sealing ring without the pre- tension with which it is held wedged relative to the collar decreasing.
  • the additional seal is a loose second sealing ring which is compressed in the axial direction between the end face of the collar and the flanged part of the second flange of. the insert. If the drum now falls with its closure onto a hard surface, the second sealing ring is compressed to a greater extent. The seal between insert and collar is therefore also maintained in this case.
  • the two sealing rings can be made of different materials.
  • the original sealing ring which is in contact with the drum contents, can be made of a material suitable for that purpose.
  • a material which is capable of undergoing great compression can be selected for the addi ⁇ tional sealing ring. It is also important here that this material should have a low coefficient of friction with regard to the metal collar and the ' insert, in view of the great displacements which occur when they are compressed in the radial direction.
  • the additional seal can be a sealing ring part which is fixed to the sealing ring and lies on the side of the sealing ring facing away from the first flange.
  • the whole sealing ring is preferably made of material with a low coefficient of friction.
  • Figure 1 shows a second embodiment of the drum closure according to the invention before it is fixed on the drum wall.
  • Figure 2 shows the completed drum closure.
  • Figure 3 shows the drum closure according to Figure 2 in the deformed state .
  • Figures 4, 5 and 6 show a first embodiment.
  • Figures 7. 8 and 9 show a third embodiment.
  • the drum wall is indicated by 1.
  • An outward pointing collar 2 is formed in this drum wall and con- nects by means of the recessed wall part 3 to the remainder of drum wall 1.
  • the insert indicated in its entirety by 4
  • Insert 4 is inserted into collar 2, while its second flange pro ⁇ jects outwards relative to collar 2.
  • Insert 4 also has a first flange 6 which lies opposite the recessed wall part 3-
  • a sealing ring 7 is pro- vided between said wall part 3 and flange 6.
  • the insert also has an internal screw thread, into which another closing cap, not shown, can be screwed.
  • flange 6 and wall part 3 are pressed towards each other, in the course of which sealing ring 7 is compressed. In that state the flange 5 is flanged over collar 2, with the result that the sealing ring can be held under pre-tension.
  • an additional sealing ring 9 is now placed on the end face of collar 2 and is also compressed when flange 2 is flanged.
  • FIG. 7 - 9 has a sealing ring 12 which is in one piece, and which essentially comprises the parts 13 and 14 which corre- spond to sealing rings 7 and 10 according to Figures 4 - 6.
  • the collar 11 is widened a little at the underside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Vending Machines For Individual Products (AREA)
  • Package Closures (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Table Devices Or Equipment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Tubes (AREA)
  • Centrifugal Separators (AREA)
  • Food-Manufacturing Devices (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Adornments (AREA)
  • Catching Or Destruction (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

A drum with a drum closure provided in a drum wall (1) comprises an insert (4) and a shut-off cap which can be placed in the insert (4), which insert (4) is situated in a collar (11) on the drum wall (1) pointing towards the outside of the drum, and has a first flange (6) which rests against the inside (3) of the drum wall, and a second flange (5) which is flanged radially outwards over the collar (11), and also a sealing ring (7) which is wedged between the first flange (6) and the inside of the drum wall (3). An additional seal (10), which may or may not be connected to the sealing ring, is provided between the collar (11) and the insert (4) lying opposite, in order to improve the sealing.

Description

Drum with drum closure
The invention relates to a drum with a drum closure provided in a drum wall, comprising an insert and a shut-off cap which can be placed in the insert, which insert is situated in a collar on the drum wall pointing towards the outside of the drum, and has a first flange which rests against the inside of the drum wall, and a second flange which is flanged radially outwards over the collar, and also a sealing ring which is wedged between the first flange and the inside of the drum wall.
Such a drum is generally known. When the insert is being fitted in the drum wall the first flange is firmly pressed against the drum wall, in such a way that the sealing ring is compressed to provide the required seal. The second flange is then flanged over the collar. The result of this is that the sealing ring can be held firmly wedged with pre-tension between the first flange and the drum wall.
The required sealing of the closure is maintained so long as the sealing ring can be held firmly wedged in this way. However, as soon as the wedging reduces, the risk of leakages occurs. Such a reduction of the wedging can occur if the drum falls from a certain height onto a hard surface with the closure down. The insert, which projects relative to the drum wall, is pressed inwards in this case, which results in the first flange and the drum wall being pressed apart.
As a result of its elasticity, the sealing ring can absorb deformations up to a certain level without leakages occurring. However, if the defor¬ mations become too great, as is mostly the case when the drum falls, the seal cannot still be guaranteed. The object of the invention is therefore to equip a drum of the type described above with an improved closure, in such a way that even if the drum falls on the closure the seal will still remain.
This object is achieved through the fact that an additional seal, which may or may not be connected to the sealing ring, is provided between the collar and the insert lying opposite. As a result of the position of the additional seal between the collar and the insert, it is ensured that the sealing is maintained, even if the insert is pressed inwards relative to the collar as the result of a fall. The additional seal can be obtained in various ways. According to a first possibility, the additional seal is a loose second sealing ring which is compressed in the radial direction between collar and insert. In this case the insert can slide inwards along the sealing ring without the pre- tension with which it is held wedged relative to the collar decreasing. Thus even quite large deformations of the drum wall and the insert can be absorbed without leakages being able to occur.
According to a second possibility, the additional seal is a loose second sealing ring which is compressed in the axial direction between the end face of the collar and the flanged part of the second flange of. the insert. If the drum now falls with its closure onto a hard surface, the second sealing ring is compressed to a greater extent. The seal between insert and collar is therefore also maintained in this case.
In the case of the embodiments described above the two sealing rings can be made of different materials. This means that the original sealing ring, which is in contact with the drum contents, can be made of a material suitable for that purpose. On the other hand, a material which is capable of undergoing great compression can be selected for the addi¬ tional sealing ring. It is also important here that this material should have a low coefficient of friction with regard to the metal collar and the' insert, in view of the great displacements which occur when they are compressed in the radial direction.
If the choice of material is not important, according to a third embodi¬ ment, the additional seal can be a sealing ring part which is fixed to the sealing ring and lies on the side of the sealing ring facing away from the first flange. In that case the whole sealing ring is preferably made of material with a low coefficient of friction.
An embodiment of the invention will be explained in greater detail below with reference to an exemplary embodiment shown in the figures.
Figure 1 shows a second embodiment of the drum closure according to the invention before it is fixed on the drum wall.
Figure 2 shows the completed drum closure. Figure 3 shows the drum closure according to Figure 2 in the deformed state .
Figures 4, 5 and 6 show a first embodiment.
Figures 7. 8 and 9 show a third embodiment.
In the embodiment shown in Figures 1, 2 and 3 the drum wall is indicated by 1. An outward pointing collar 2 is formed in this drum wall and con- nects by means of the recessed wall part 3 to the remainder of drum wall 1. In the situation shown in Figure 1 the insert, indicated in its entirety by 4, is inserted into collar 2, while its second flange pro¬ jects outwards relative to collar 2. Insert 4 also has a first flange 6 which lies opposite the recessed wall part 3- A sealing ring 7 is pro- vided between said wall part 3 and flange 6. The insert also has an internal screw thread, into which another closing cap, not shown, can be screwed.
For fixing the insert 4 to drum wall 1, flange 6 and wall part 3 are pressed towards each other, in the course of which sealing ring 7 is compressed. In that state the flange 5 is flanged over collar 2, with the result that the sealing ring can be held under pre-tension. According to the invention, an additional sealing ring 9 is now placed on the end face of collar 2 and is also compressed when flange 2 is flanged.
In the completed state shown in Figure 2, it can be seen that there is a double seal between the insert 4 and drum wall 1, namely at the position of sealing ring 7 and at the position of the additional sealing ring 9-
However, when there are great deformations, for example those which occur as the result of the drum falling with the closure facing down, the situ¬ ation shown in Figure 3 occurs. The insert 4 is pressed greatly inwards, with the result that the flange 6 has come to lie at a greater distance from wall part 3- A great part of the pre-tension in sealing ring 7 i consequently lost, which could give rise to leakages.
As also shown in Figure 3. the pre-tension of the additional sealing ring 5 has not, however, decreased, so that the correct seal has been retained at that point. In the case of the variant shown in Figures 4 - 6 the additional sealing ring 10 is fitted directly beside the sealing ring . In order to ensure that the additional sealing ring 10 goes into the correct position between the insert 4 and the collar 11 when the insert 4 is .connected to the drum wall 1, the collar 11 is widened a little at the underside.
During the compression of insert 4 and drum wall 1 the additional sealing ring 10 can consequently go into the position shown in Figure 5- In this case it is radially compressed, and is consequently largely unaffected by the sliding inwards of the insert 4 as the result of a fall: see Figure 6.
The variant shown in Figures 7 - 9 has a sealing ring 12 which is in one piece, and which essentially comprises the parts 13 and 14 which corre- spond to sealing rings 7 and 10 according to Figures 4 - 6. In this case also the collar 11 is widened a little at the underside. When insert 4 and end wall 1 are fixed, part 14 of sealing ring is now compressed radially, and is therefore unaffected by shifts. When deformations occur the part 13 can expand, but this is not at the expense of the overall seal.

Claims

1. Drum with a drum closure provided in a drum wall, comprising an insert and a shut-off cap which can be placed in the insert, which insert is
5 situated in a collar on the drum wall pointing towards the outside of the drum, and has a first flange which rests against the inside of the drum
'. wall, and a second flange which is flanged radially outwards over the collar, and also a sealing ring which is wedged between the first flange and the inside of the drum wall, characterised in that an additional 10 seal, which may or may not be connected to the sealing ring, is provided between the collar and the insert lying opposite.
2. Drum according to Claim 1, in which the additional seal is a loose second sealing ring which is compressed in the radial direction between
15 collar and insert.
3. Drum according to Claim 1, in which the additional seal is a loose second sealing ring which is compressed in the axial direction between the end face of the collar and the flanged part of the second flange of
20 the insert.
4. Drum according to Claim 2 or 3, in which the additional seal is a sealing ring part which is fixed on the sealing ring and lies on the side of the sealing ring facing away from the first flange.
25
5. Drum according to any of the preceding claims, in which the collar and the insert do not touch each other at the surfaces facing each other.
EP93901507A 1991-12-05 1992-12-04 Drum with drum closure Revoked EP0614434B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9102034 1991-05-12
NL9102034A NL9102034A (en) 1991-12-05 1991-12-05 BARREL WITH BARREL CLOSURE.
PCT/NL1992/000220 WO1993010986A1 (en) 1991-12-05 1992-12-04 Drum with drum closure

Publications (2)

Publication Number Publication Date
EP0614434A1 true EP0614434A1 (en) 1994-09-14
EP0614434B1 EP0614434B1 (en) 1995-11-02

Family

ID=19860000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93901507A Revoked EP0614434B1 (en) 1991-12-05 1992-12-04 Drum with drum closure

Country Status (26)

Country Link
EP (1) EP0614434B1 (en)
JP (1) JP3232094B2 (en)
KR (1) KR100259224B1 (en)
AT (1) ATE129683T1 (en)
AU (1) AU662197B2 (en)
BG (1) BG61226B1 (en)
BR (1) BR9206863A (en)
CA (1) CA2123217A1 (en)
CZ (1) CZ282399B6 (en)
DE (1) DE69205840T2 (en)
DK (1) DK0614434T3 (en)
ES (1) ES2079958T3 (en)
FI (1) FI942630A0 (en)
GR (1) GR3017968T3 (en)
HU (1) HU218516B (en)
MY (1) MY110320A (en)
NL (1) NL9102034A (en)
NO (1) NO309319B1 (en)
NZ (1) NZ246393A (en)
OA (1) OA09941A (en)
RO (1) RO117365B1 (en)
RU (1) RU2089479C1 (en)
SK (1) SK281348B6 (en)
TR (1) TR27585A (en)
WO (1) WO1993010986A1 (en)
ZA (1) ZA929388B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2772449A1 (en) 2013-02-28 2014-09-03 Technocraft Industries (India) Ltd. Insert for a drum closure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1165390B1 (en) * 1999-02-02 2003-07-23 Royal Packaging Industries Van Leer N.V. Improved container closures
DE102004037859B4 (en) * 2004-08-04 2007-05-16 Siemens Ag Medical device with collision avoidance device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB489896A (en) * 1937-08-20 1938-08-05 Karl Wilhelm Mauser Improvements in and relating to bung bushes
GB943148A (en) * 1961-05-10 1963-11-27 Leer Ind Ltd Van Improvements in or relating to bung-hole constructions and method of making the same
US3894331A (en) * 1971-03-23 1975-07-15 Leer Koninklijke Emballage Method of mounting a bushing to a container closure
US3946894A (en) * 1974-11-11 1976-03-30 American Flange & Manufacturing Co. Inc. Drum closure
US4706836A (en) * 1987-01-23 1987-11-17 Allen-Stevens Drum Accessories Corp. Leak-resistant drum seals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9310986A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2772449A1 (en) 2013-02-28 2014-09-03 Technocraft Industries (India) Ltd. Insert for a drum closure

Also Published As

Publication number Publication date
FI942630A (en) 1994-06-03
NO941872D0 (en) 1994-05-19
AU3268193A (en) 1993-06-28
WO1993010986A1 (en) 1993-06-10
BG98833A (en) 1995-06-30
DK0614434T3 (en) 1995-12-04
NZ246393A (en) 1995-08-28
HUT69093A (en) 1995-08-28
NO309319B1 (en) 2001-01-15
SK281348B6 (en) 2001-02-12
NO941872L (en) 1994-05-19
JP3232094B2 (en) 2001-11-26
CZ282399B6 (en) 1997-07-16
JPH07501510A (en) 1995-02-16
GR3017968T3 (en) 1996-02-29
AU662197B2 (en) 1995-08-24
SK68094A3 (en) 1995-03-08
BR9206863A (en) 1995-11-21
DE69205840T2 (en) 1996-04-04
RU2089479C1 (en) 1997-09-10
RO117365B1 (en) 2002-02-28
HU218516B (en) 2000-09-28
DE69205840D1 (en) 1995-12-07
KR100259224B1 (en) 2000-06-15
EP0614434B1 (en) 1995-11-02
CA2123217A1 (en) 1993-06-10
ZA929388B (en) 1993-08-17
ATE129683T1 (en) 1995-11-15
TR27585A (en) 1995-06-13
NL9102034A (en) 1993-07-01
MY110320A (en) 1998-04-30
OA09941A (en) 1994-11-15
BG61226B1 (en) 1997-03-31
CZ137194A3 (en) 1994-12-15
ES2079958T3 (en) 1996-01-16
FI942630A0 (en) 1994-06-03

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