US20040245262A1 - Closing lower part with a retaining rib - Google Patents

Closing lower part with a retaining rib Download PDF

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Publication number
US20040245262A1
US20040245262A1 US10/483,446 US48344604A US2004245262A1 US 20040245262 A1 US20040245262 A1 US 20040245262A1 US 48344604 A US48344604 A US 48344604A US 2004245262 A1 US2004245262 A1 US 2004245262A1
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US
United States
Prior art keywords
closure
underpart
tubular sleeve
webs
angle
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.)
Abandoned
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US10/483,446
Inventor
Günter Krautkrämer
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.)
Bericap GmbH and Co KG
Original Assignee
Bericap GmbH and Co KG
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 Bericap GmbH and Co KG filed Critical Bericap GmbH and Co KG
Assigned to BERICAP GMBH & CO. KG reassignment BERICAP GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRAUTKRAMER, GUNTER JAKOB
Publication of US20040245262A1 publication Critical patent/US20040245262A1/en
Abandoned 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container

Definitions

  • the present invention relates to a closure underpart with a tubular sleeve and a fixing flange arranged on the outside of the tubular sleeve, at least one projection being provided on the inside of the tubular sleeve which serves to hold the closure underpart on a spike when fixing to a vessel wall.
  • closure underparts have been known for some time and they are used above all for plastic closures of carton packs, e.g. for beverages or similar, where the closure or the closure underpart is guided from the (later) inside of the vessel through an opening in the wall of the vessel, the closure flange coming into contact with the inner surface of the vessel wall and then being welded or glued to it.
  • the corresponding spikes have to be matched to the internal diameter of the corresponding closure underparts or more precisely to the diameter defined by the projections, in order to on the one hand securely hold a closure underpart before and during assembly, but on the other hand so as to also be easily removable again from the assembled closure underpart.
  • a design is already known in which the projection is developed as a peripheral ring-shaped bead or lip along the bottom inner edge of the tubular sleeve.
  • several separated, bead-like projections are provided which are distributed over the circumference of the tubular sleeve on its inside and near to the bottom inner edge.
  • the spikes for holding these closures also have to be changed because a given closure size can be held only by a spike which is suitably matched to it, there being only slight play in order on the one hand to ensure the holding and transportation of the closure underpart on a spike, but on the other hand to also be able to easily remove the spike from the assembled closure again.
  • the object of the present invention is to create a corresponding closure underpart which can be held on a spike with a much greater play.
  • the at least one projection has the form of a bendable web which runs inclined at an angle vis-à-vis the inner wall of the sleeve which is smaller than 90° and greater than 0°.
  • the webs run inclined, vis-à-vis the tubular sleeve wall (more precisely vis-à-vis a tangent to the tubular sleeve wall) at an angle between 20° and 70°, an angle in the range of roughly 45° being most preferred.
  • the webs in the preferred version of the invention can run essentially axis-parallel, i.e. they are connected to the inner wall of the tubular sleeve along an essentially axis-parallel line and they are formed as short flat webs or small plates, the plane of these small plates or webs likewise running parallel to the axis of the tubular sleeve.
  • the webs are connected to the wall of the tubular sleeve along a line inclined to the axis, e.g. along a diagonally running line or however also along a line running in circumferential direction.
  • the inclination of the webs vis-à-vis the wall of the cavity is then best determined in a plane which runs perpendicular to the fixing line of the web to the wall.
  • these webs should extend only over relatively narrow angle ranges of less than 60° and preferably less than 30°, in particular for webs running only in circumferential direction. If the webs do extend over a greater angle range they acquire a greater rigidity through the curvature and are therefore not so easily bendable.
  • the webs are relatively easy to move if they extend only over relatively short sections in circumferential direction or if they are attached to the tubular sleeve along an axially-running line, they can also be designed with a greater length (measured perpendicular to their fixing line) so that, because of this fact also, a greater path of movement for the absorption of tolerances is available for the webs.
  • FIG. 1 an axial section through a closure underpart according to the invention
  • FIG. 2 a view from below of the closure underpart according to FIG. 1 and
  • FIG. 3 an enlarged cut-out section from FIG. 2.
  • FIG. 1 There can be seen in FIG. 1 the axial section through a closure underpart 1 , consisting of a tubular sleeve 2 with external thread 5 and a fixing flange 3 joining onto the lower end of the tubular sleeve 2 on the outside.
  • a normally likewise present closure seal which is arranged inside the tubular sleeve 2 and closes its cross section, is not represented.
  • three projections in total in each representation in the form of short webs 4 which, as can be seen better in FIG. 2, are inclined vis-à-vis the wall of the tubular sleeve 2 .
  • a short spike the diameter of which is somewhat smaller than the internal diameter of the tubular sleeve 2 , is introduced from below into the tubular sleeve 2 , the webs 4 being bent back, i.e. pressed in the direction of the tubular sleeve wall so that the closure underpart 1 is held securely on the spike via the elastic restoring force of the webs 4 .
  • the closure underpart is then guided with the help of this spike to the inner wall of a vessel, e.g. a carton pack, which has a corresponding opening to receive the tubular sleeve 2 .
  • the tubular sleeve 2 is guided through this opening from inside, the flange 3 being laid against the vessel inner wall and being welded or glued to it.
  • the spike is then again pulled out of the tubular sleeve 2 , the flange 3 holding the closure underpart 1 firm against the vessel and in the vessel opening so that the spike can be pulled out of the tubular sleeve 2 in spite of the frictional engagement with the easily bendable webs 4 .
  • This process generally takes place before the development of the vessel on a continuous material web, from which the vessel is folded or formed after the closure is attached.
  • FIG. 2 there can be seen in a view from below both the closure flange and the wall (indicated by a dotted line) of the tubular sleeve, out from which six projections in total extend in the form of narrow webs or lugs, which run inclined vis-à-vis the wall of the tubular sleeve 2 .
  • the length of the webs 4 measured from the point of attachment on the tubular sleeve wall to the free end, is between 0.5 and 1.5 mm and the thickness of these webs is expediently between 0.3 and 0.6 mm.
  • the angle ⁇ is roughly 45° in the preferred version, but can also be chosen to be smaller or greater if required, if e.g. greater tolerance deviations are to be absorbed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Making Paper Articles (AREA)

Abstract

The present invention relates to a closure underpart with a tubular sleeve (2) and a fixing flange (3) arranged on the outside of the tubular sleeve (2), at least one projection (4) being provided on the inside of the tubular sleeve (2), which serves to hold the closure underpart (1) on a spike inserted into the tubular sleeve (2) when fixing to a vessel wall. In order to create a corresponding closure underpart, which can be held on a spike with a much greater play it is proposed according to the invention that the at least one projection (4) has the form of a bendable web which run inclined vis-à-vis the inner wall of the tubular sleeve (2) at an angle α which is smaller than 90° and greater than 0°.

Description

  • The present invention relates to a closure underpart with a tubular sleeve and a fixing flange arranged on the outside of the tubular sleeve, at least one projection being provided on the inside of the tubular sleeve which serves to hold the closure underpart on a spike when fixing to a vessel wall. [0001]
  • Corresponding closure underparts have been known for some time and they are used above all for plastic closures of carton packs, e.g. for beverages or similar, where the closure or the closure underpart is guided from the (later) inside of the vessel through an opening in the wall of the vessel, the closure flange coming into contact with the inner surface of the vessel wall and then being welded or glued to it. [0002]
  • For this assembly, the housing of the closures and the transport of the same, “spikes” are generally used which fit into the inside of the tubular sleeve and mostly enter into greater or lesser frictional engagement with the inwardly-protruding projections. [0003]
  • It is understood that the corresponding spikes have to be matched to the internal diameter of the corresponding closure underparts or more precisely to the diameter defined by the projections, in order to on the one hand securely hold a closure underpart before and during assembly, but on the other hand so as to also be easily removable again from the assembled closure underpart. [0004]
  • A design is already known in which the projection is developed as a peripheral ring-shaped bead or lip along the bottom inner edge of the tubular sleeve. In another version, several separated, bead-like projections are provided which are distributed over the circumference of the tubular sleeve on its inside and near to the bottom inner edge. [0005]
  • If corresponding closures have different sizes, the spikes for holding these closures also have to be changed because a given closure size can be held only by a spike which is suitably matched to it, there being only slight play in order on the one hand to ensure the holding and transportation of the closure underpart on a spike, but on the other hand to also be able to easily remove the spike from the assembled closure again. [0006]
  • The changing of the spikes to adapt to different closure sizes is relatively time-consuming and tiresome and significantly reduces productivity during the production or attachment of such closures. Even slight tolerances during the production of one and the same type of closure can already lead to malfunctions during assembly, as the closure then either slides too easily from the spike or is held too tightly to the spike. [0007]
  • This problem is further aggravated by the fact that on many such closures closure seals are provided which completely cover the cross section of the tubular sleeve so that, under the closure seal, only a relative short section of the tubular sleeve is available for holding by a corresponding spike. [0008]
  • Compared with this state of the art the object of the present invention is to create a corresponding closure underpart which can be held on a spike with a much greater play. [0009]
  • This object is achieved in that the at least one projection has the form of a bendable web which runs inclined at an angle vis-à-vis the inner wall of the sleeve which is smaller than 90° and greater than 0°. [0010]
  • While traditionally the projections were compressed in radial direction by the engagement with a spike or the diameter defined by the projections was itself expanded by pressing together of the material, according to the invention, instead of the relatively rigid and only elastically compressible projections, bendable webs are provided which run inclined vis-à-vis the inner wall of the sleeve at an angle which is smaller than 90° and greater than 0°. The means effectively that a much greater elastic path of movement is available through the bending of the webs than was normally possible by the pressing together or radial expanding of the corresponding material. As a result, with the projection according to the invention in the form of a bendable web running inclined to the tubular sleeve wall, much greater deviations in play of the diameter of the spike vis-à-vis the diameter of the tubular sleeve can be absorbed so that one and the same spike can also be used with different closure types with slightly different tubular sleeve diameters in order to hold and assemble the closure underpart. [0011]
  • Expediently the webs run inclined, vis-à-vis the tubular sleeve wall (more precisely vis-à-vis a tangent to the tubular sleeve wall) at an angle between 20° and 70°, an angle in the range of roughly 45° being most preferred. Moreover the webs in the preferred version of the invention can run essentially axis-parallel, i.e. they are connected to the inner wall of the tubular sleeve along an essentially axis-parallel line and they are formed as short flat webs or small plates, the plane of these small plates or webs likewise running parallel to the axis of the tubular sleeve. In principle it is also possible however that the webs are connected to the wall of the tubular sleeve along a line inclined to the axis, e.g. along a diagonally running line or however also along a line running in circumferential direction. The inclination of the webs vis-à-vis the wall of the cavity is then best determined in a plane which runs perpendicular to the fixing line of the web to the wall. [0012]
  • In particular if the fixing line of the webs has a considerable component in circumferential direction, these webs should extend only over relatively narrow angle ranges of less than 60° and preferably less than 30°, in particular for webs running only in circumferential direction. If the webs do extend over a greater angle range they acquire a greater rigidity through the curvature and are therefore not so easily bendable. As the webs are relatively easy to move if they extend only over relatively short sections in circumferential direction or if they are attached to the tubular sleeve along an axially-running line, they can also be designed with a greater length (measured perpendicular to their fixing line) so that, because of this fact also, a greater path of movement for the absorption of tolerances is available for the webs. [0013]
  • In a preferred version several e.g. three corresponding webs and preferably at least six webs are provided which are expediently distributed in equidistant angular distances along the circumference of the tubular sleeve and preferably along the lower end-section of the tubular sleeve. [0014]
  • Further advantages, features and application possibilities of the present invention will become clear by reference to a preferred version, such as is represented in the accompanying Figures. There are shown in [0015]
  • FIG. 1 an axial section through a closure underpart according to the invention, [0016]
  • FIG. 2 a view from below of the closure underpart according to FIG. 1 and [0017]
  • FIG. 3 an enlarged cut-out section from FIG. 2.[0018]
  • There can be seen in FIG. 1 the axial section through a closure underpart [0019] 1, consisting of a tubular sleeve 2 with external thread 5 and a fixing flange 3 joining onto the lower end of the tubular sleeve 2 on the outside. A normally likewise present closure seal, which is arranged inside the tubular sleeve 2 and closes its cross section, is not represented. Along the lower edge of the tubular sleeve there can also be seen three projections in total in each representation in the form of short webs 4 which, as can be seen better in FIG. 2, are inclined vis-à-vis the wall of the tubular sleeve 2.
  • For assembly a short spike, the diameter of which is somewhat smaller than the internal diameter of the [0020] tubular sleeve 2, is introduced from below into the tubular sleeve 2, the webs 4 being bent back, i.e. pressed in the direction of the tubular sleeve wall so that the closure underpart 1 is held securely on the spike via the elastic restoring force of the webs 4. The closure underpart is then guided with the help of this spike to the inner wall of a vessel, e.g. a carton pack, which has a corresponding opening to receive the tubular sleeve 2. The tubular sleeve 2 is guided through this opening from inside, the flange 3 being laid against the vessel inner wall and being welded or glued to it. The spike is then again pulled out of the tubular sleeve 2, the flange 3 holding the closure underpart 1 firm against the vessel and in the vessel opening so that the spike can be pulled out of the tubular sleeve 2 in spite of the frictional engagement with the easily bendable webs 4. This process generally takes place before the development of the vessel on a continuous material web, from which the vessel is folded or formed after the closure is attached.
  • In FIG. 2 there can be seen in a view from below both the closure flange and the wall (indicated by a dotted line) of the tubular sleeve, out from which six projections in total extend in the form of narrow webs or lugs, which run inclined vis-à-vis the wall of the [0021] tubular sleeve 2. This can be seen even more clearly in the enlarged cut-out section from FIG. 2, which is represented in FIG. 3. The length of the webs 4, measured from the point of attachment on the tubular sleeve wall to the free end, is between 0.5 and 1.5 mm and the thickness of these webs is expediently between 0.3 and 0.6 mm. The angle α is roughly 45° in the preferred version, but can also be chosen to be smaller or greater if required, if e.g. greater tolerance deviations are to be absorbed.

Claims (20)

1-7. (canceled).
8. A closure underpart having a tubular sleeve (2) and a fixing flange (3) arranged on an outside of the tubular sleeve (2), at least one projection (4) being arranged on an inside of the tubular sleeve (2), that serves to hold the closure underpart (1) on a spike inserted into the tubular sleeve (2) when fixing the closure underpart to a vessel wall, wherein the at least one projection (4) has the form of a bendable web that runs at an inclined angle α with respect to an inner wall of the tubular sleeve (2), which angle α is smaller than 90° and greater than 0°.
9. A closure underpart according to claim 8 wherein the angle α is between 20° and 70°.
10. A closure underpart according to claim 8 wherein the angle α is about 45°.
11. A closure underpart according to claim 8 wherein the web (4) runs essentially parallel to an axis of the tubular sleeve.
12. A closure underpart according to claim 9 wherein the web (4) runs essentially parallel to an axis of the tubular sleeve.
13. A closure underpart according to claim 8 wherein at least three projections (4) are provided at equidistant angular distances on an inner surface of the tubular sleeve and adjacent to a lower inner edge of the tubular sleeve.
14. A closure underpart according to claim 9 wherein at least three projections (4) are provided at equidistant angular distances on an inner surface of the tubular sleeve and adjacent to a lower inner edge of the tubular sleeve.
15. A closure underpart according to claim 10 wherein at least three projections (4) are provided at equidistant angular distances on an inner surface of the tubular sleeve and adjacent to a lower inner edge of the tubular sleeve.
16. A closure underpart according to claim 8 wherein the webs have a height, measured in a plane perpendicular to an axis of the closure underpart and at an angle α to the tubular wall, of 0.5 to 1.5 mm.
17. A closure underpart according to claim 9 wherein the webs have a height, measured in a plane perpendicular to an axis of the closure underpart and at an angle α to the tubular wall, of 0.5 to 1.5 mm.
18. A closure underpart according to claim 10 wherein the webs have a height, measured in a plane perpendicular to an axis of the closure underpart and at an angle α to the tubular wall, of 0.5 to 1.5 mm.
19. A closure underpart according to claim 8 wherein the webs (4) are inclined relative to an axis of the sleeve (2).
20. A closure underpart according to claim 9 wherein the webs (4) are inclined relative to an axis of the sleeve (2).
21. A closure underpart according to claim 10 wherein the webs (4) are inclined relative to an axis of the sleeve (2).
22. A closure underpart according to claim 14 wherein the webs (4) are inclined relative to an axis of the sleeve (2).
23. A closure underpart according to claim 8 wherein the projections consist of web sections running in a circumferential direction each of which extend over an angle range of less than 90° and run inclined relative to the closure axis.
24. A closure underpart according to claim 9 wherein the projections consist of web sections running in a circumferential direction each of which extend over an angle range of less than 90° and run inclined relative to the closure axis.
25. The closure of claim 23 wherein the angle is less than 30°.
26. The closure of claim 24 wherein the angle is less than 30°.
US10/483,446 2001-07-11 2002-06-21 Closing lower part with a retaining rib Abandoned US20040245262A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133809.0 2001-07-11
DE10133809A DE10133809A1 (en) 2001-07-11 2001-07-11 Spout for drinks carton comprises tube with peripheral flange, tags which project inwards at angle holding spout in position
PCT/DE2002/002268 WO2003006328A1 (en) 2001-07-11 2002-06-21 Closing lower part with a retaining rib

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US20040245262A1 true US20040245262A1 (en) 2004-12-09

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US10/483,446 Abandoned US20040245262A1 (en) 2001-07-11 2002-06-21 Closing lower part with a retaining rib

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US (1) US20040245262A1 (en)
EP (1) EP1404582B1 (en)
DE (2) DE10133809A1 (en)
ES (1) ES2303552T3 (en)
WO (1) WO2003006328A1 (en)

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WO2010106327A1 (en) 2009-03-17 2010-09-23 Elopak Systems Ag Pour spout and method of mounting a pour spout on a spigot
US20110108553A1 (en) * 2009-11-11 2011-05-12 Pantelleria Joseph A Container/lid assembly
WO2017199241A1 (en) 2016-05-18 2017-11-23 Real - Cap Ltd Pour spout, spigot and method for usage thereof

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DE102012020529A1 (en) * 2012-10-19 2014-04-24 Sig Technology Ag Reclosable pouring element for a packaging and mandrel of a rotatable mandrel wheel of a packaging machine for receiving such a pouring element and combination of pouring element and mandrel

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US20030026508A1 (en) * 2001-08-03 2003-02-06 Mark Smith Push-on/screw-off cap assembly
US7066337B2 (en) * 2002-01-05 2006-06-27 Hsu Wei K Lou Reusable filter port assembly for installation on the wall of a bag
US20060175338A1 (en) * 2004-12-16 2006-08-10 Pishock Charles T Jr Tank outlet fitting with flange

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010106327A1 (en) 2009-03-17 2010-09-23 Elopak Systems Ag Pour spout and method of mounting a pour spout on a spigot
US20110108553A1 (en) * 2009-11-11 2011-05-12 Pantelleria Joseph A Container/lid assembly
WO2017199241A1 (en) 2016-05-18 2017-11-23 Real - Cap Ltd Pour spout, spigot and method for usage thereof

Also Published As

Publication number Publication date
DE50212154D1 (en) 2008-06-05
WO2003006328A1 (en) 2003-01-23
ES2303552T3 (en) 2008-08-16
EP1404582B1 (en) 2008-04-23
DE10133809A1 (en) 2003-01-23
EP1404582A1 (en) 2004-04-07

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