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EP0132904A2 - Behälterverschluss - Google Patents

Behälterverschluss Download PDF

Info

Publication number
EP0132904A2
EP0132904A2 EP84301440A EP84301440A EP0132904A2 EP 0132904 A2 EP0132904 A2 EP 0132904A2 EP 84301440 A EP84301440 A EP 84301440A EP 84301440 A EP84301440 A EP 84301440A EP 0132904 A2 EP0132904 A2 EP 0132904A2
Authority
EP
European Patent Office
Prior art keywords
container
aperture
closure
thread member
sleeve
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.)
Withdrawn
Application number
EP84301440A
Other languages
English (en)
French (fr)
Other versions
EP0132904A3 (de
Inventor
Cyril Kenneth Edwards
Brian Hugh Croft
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.)
Thomas Hunter Ltd
Original Assignee
Thomas Hunter Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB838316772A external-priority patent/GB8316772D0/en
Application filed by Thomas Hunter Ltd filed Critical Thomas Hunter Ltd
Publication of EP0132904A2 publication Critical patent/EP0132904A2/de
Publication of EP0132904A3 publication Critical patent/EP0132904A3/de
Withdrawn legal-status Critical Current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
    • 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
    • B65D41/08—Threaded or like caps or cap-like covers secured by rotation engaging a threaded ring clamped on the external periphery of the neck or wall
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/061—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles
    • B65D47/063—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles with flexible parts
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0015—Upper closure of the 41-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0087—Lower closure of the 47-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • B65D2251/0096—Membrane integral with the container

Definitions

  • This invention relates to closing containers such as containers which are preformed and may be made of glass, plastics, metal or similar for example jars, bottles or cans which have apertures secured by.closure caps.
  • the invention also relates to closingnon-preformed containers,for example those fabricated from.sheet or coil material.
  • Such materials may be laminates such as paper coated with a layer of PVC or a layer of aluminium foil, or they may be homogeneous material such as aluminium or tinplate or some suitable plastics in sheet or coil.
  • Containers fabricated in this way can be very efficiently produced.
  • preformed containers are usually provided with threads formed integrallywith their neckrings for securing the closures, for example lids or covers, to the containers.
  • the provision of such integral threads on the neckring complicates the container manufacturing process and consequently makes such a container costly to produce.
  • the application of the closure to the container is a complicated procedure involving complex machinery
  • known containers made from sheet or coil material are reclosed by pressing together and folding the sides of the aperture and they cannot be opened and reclosed repeatedly or kept once opened for long periods, with success comparable in performance with that enjoyed by preformed containers such as those moulded from glass.
  • such reclosed containers may not be airtight.
  • a securing device for attaching a closure to a container aperture comprising a preformed thread member, which is adapted to be fixed to the region defining the aperture, whereby the closure may be held in sealing contact with this region so as to close the aperture.
  • the thread member can be fixed in position before or after the aperture has been made.
  • the exterior of the neckring of the container does not require a particular shape or form for receiving closures and it may be plain.
  • a preformed thread member can be secured, for instance, to the walls of an extruded tube or a parallel-sided container.
  • Containers having the securing device of this invention can be made more cheaply. Furthermore, separately manufacturing the thread means is advantageous in various other ways. Firstly, it allows greater freedom in the choice of form of thread because the forming operation is no longer restricted to the manufacturing process of the containers themselves. Secondly, the material from which the thread member is formed can be chosen to meet the precise needs of the thread. In a conventional container, the choice of material is limited to that which is suitable for the body of the container.
  • the invention can have many configurations for example:
  • a threaded sleeve according to the invention is preferably made of plastics material.
  • a plastics sleeve can be applied to a container by a simple push-on operation, which can ensure that the sleeve grips the container tightly so as to operate as a substantially permanent thread. This sleeve allows a closure cap to be held in sealing contact with the container and to be removed by a screwing action without the sleeve itself becoming detached from the container.
  • a thread member may be fixed to the region surrounding an aperture in a container which has not yet been made, in for instance sheet or coil material.
  • This member preferably is of thermo-plastics material and can be moulded or assembled on to sheet or coil material in such a way that when that material is fabricated to form a container, the said thread member lies on a surface which can be .conveniently pierced to provide an access aperture for filling or emptying the container.
  • the aperture can be pierced prior to or subsequent to the thread or sleeve moulding or assembly.
  • the sleeve can contain an integrally formed thread or annular ring, such as that commonly used on the neckring of glass containers, and it should be noted that the sleeve can accept a twist-on or snap-on closure.
  • the aperture can be formed by, for instance, a piercing and plunging operation to provide a neckring integral with the fabricated body of the container.
  • the sleeve can be preformed and subsequently secured around the aperture. The sleeve can be secured, for instance, by heat sealing or by the application of an adhesive coating.
  • a method of forming a closed container comprising forming an aperture in a predetermined position on a piece of material, inserting a combined closure cap secured to an internal thread member through the aperture from the side of the material into which the sleeve is to be fixed, and fastening together the respective side and base edges of the container.
  • the material is supplied continuously on a roll or sheet and a plurality of containers is thereby formed and the edges of the container are fastened together by means of heat sealing.
  • a thread member can be pre-assembled into a closure cap and the assembly can then be applied to a neckringthe exterior of which has not been made in a form to receive the closure cap,on a preformed container by a press-on operation.
  • closure cap By using such a method the closure cap can be pushed axially on to the neckring rather than by a twisting movement thereby greatly simplifying its application and the machinery required to carry out such application.
  • a thread member or sleeve according to the invention confers many advantages, for example by filling the gap between the beaded portion of the closure and the wall of the neckring the ingress of dust or foreign bodies is substantially prevented.
  • the sleeve may be formed with a portion to cover the top of a neckring whereby it may act as a sealing gasket and can protect the exposed top edge of the neckring against damage, hence facilitating the reuse of the container.
  • the sleeve may contain a flange protruding outwardly from its lower edge; this flange can be developed as a sealing surface and also, with a closure, provides protection against tampering and pilfering.
  • the flange can be attached to the lower edge of the closure wall so that after the combined sleeve and closure have been assembled to a container, the closure cannot be removed without shearing the flange, thereby providing visible evidence of removal.
  • the sleeve may be made long enough to enter into sealing contact with a co-operating closure and of such flexibility that if the internal pressure in the headspace is higher than or alternatively lower than, the ambient air pressure, the resultant flexing of the closure and/or the sleeve acts to increase the sealing contact.
  • a sleeve pre-assembled with the closure will add rigidity to the closure and allow the use of thinner and hence more economical sections in the construction of the closure. Furthermore, pre-assembly with a closure and application to a container by a press-on operation, allows the use of a short neckring and minimises the amount of material forming the skirt of the closure cap.
  • a thread member according to the invention optionally embodied in a flange or sleeve is tightly seated on the neckring. It can be applied for instance by heat-sealing or by the application of an adhesive coating between the surfaces to be joined together.
  • a sleeve including a thread can be secured to a container by subjecting the sleeve to pre-heat causing it to expand prior to being allowed to contract around the neckring.
  • the sleeve and the neckring can be formed with co-operating tapers which can be locked together by downward pressure during engagement.
  • the downward force exerted on the sleeve by unscrewing the closure from the assembled sleeve and neckring tends to lock the sleeve on to the neckring.
  • the external surface of the neckring can be grooved, ribbed or splined, or the surface finish can be roughened, which further improves the tight fit on the container.
  • the sleeve can be pre-assembled into a closure cap and the assembly can then be applied to a plain or plunged aperture by a press-on operation.
  • a press-on operation not only simplifies the assembly operation, but also allows a closure to be applied safely to a container of low structural rigidity.
  • the sleeve it is often advantageous for the sleeve to have an integral flange at its base to provide an adequate area for adhesion.
  • the sleeve can be conveniently affixed around it or around and over it.
  • the sleeve can be assembled to the wall over the area where the aperture is to be formed and the wall can be left intact until the contents are required for use.
  • the security of the pack can be enhanced and the pack can remain substantially tamper and pilfer- proof.
  • the intact wall will add to the stability of the container throughout its life until access to the contents is required.
  • the area of the wall which is to form the aperture can be provided with an easy removal feature. For instance it can be part- pierced or perforated or reduced in thickness around the removal line.
  • the sleeve can be pre-assembled with an easily removable diaphragm covering the opening at the end to be affixed to the container so that when the sleeve is affixed over an aperture in the container access to the container cannot be gained without piercing the said diaphragm.
  • the invention readily lends itself to use with pressure holding containers such as those formed by drawing and ironing operations.
  • the mating profiles of the neckring and sleeve need to be so formed that they readily interlock when the internal pressure of the container is higher than the external pressure, whilst allowing the closure to be removed from the sleeve by a conventional twist-off action.
  • a container including a closed aperture portion, comprising material which is flexible at least in the neck region between the aperture and the adjacent container wall, so that the closed aperture portion can be retained in a depressed mode and subsequently raised into an upstanding mode upon pressure being exerted on the walls of the container.
  • the container is a carton, which may be heat-sealable. This arrangement is advantageous in that storage and transit space are minimised.
  • the container may include a removable diaphragm covering the aperture portion for protection.
  • a plastics thread member 1, shown in Figure la, comprising a single start, male thread is tightly fixed for example by heat sealing or adhesive to the exterior 2 of the plain neckring 3 of a container 4 such as a glass jar.
  • the thread member could be made of spring steel or other resilient material.
  • the thread member may have a flange 5 on one or both sides of the thread 1 for strengthening the attachment to the neckring.
  • thread member comprises a threaded sleeve 6, as shown in Figure 2b.
  • the sleeve 6 is adapted to be located around the plain neckring 3 of the container 4 and a closure cap 7, including an internal thread, which may be either multi-start or single start, is screwed onto the sleeve 6 on the neckring 3 so as to close the aperture 9.
  • the closure cap may have internal lugs instead of threads 8 for engagement with the thread member.
  • the sleeve 6 may include a female thread 10 instead of or as well as a male thread for receiving projections from inside the closure cap 7 and a conventional lug cap may be employed for this.
  • the sleeve 6 may have a lower, external, peripheral flange 11, as shown in Figures 3a and 4a, which provides a) a stop for the cap 7, b) a seal to prevent ingress of dirt and dust as shown in Fig. 4a', in which the lower external flange is sealingly engaged with the bead of the closure cap.
  • the sleeve 6 may have an upper peripheral rim 12, for covering the top of the neckring 3 to form a seal.
  • the -sleeve 6 may be made shorter as in Figure 4C, as may the -cap.
  • a sleeve 6 may be applied to a plain neckring 3 by firstly, screwing the cap 7 onto the sleeve 6, as shown in Figure 5a, and then pushing this combination downward onto the neckring 3 of the container 4 so as to tightly surround the neckring 3.
  • the cap 7 is then removed by turning in an anti-clockwise direction, as shown in Figure 6a and removing the cap 7 upwardly, and the sleeve 6 is left anchored on the neckring 3, as shown in Figure 6c.
  • a sleeve 6 may be applied to a container 4 having an aperture 9 without a neckring for example a carton as shown in Figure 7a, by attaching the external flange 11 to the region around the aperture 9 on top of the edge of the container clearance 'S' must be provided between the flange and the bottom of the cap.
  • the cap may be a screw-on or snap-on type either for an externally threaded sleeve, as shown in Figures 7a and 7b respectively, or for an internally threaded sleeve, as shown in Figure 7c.
  • the sleeve does not have the external flange 11 to save costs and connection between sleeve 6 and container is effected by means of an upturned rim 14, as shown in Figure 8a, in the container 4 around the aperture 9, which may be punched out.
  • the sleeve has a groove 15 to accommodate the rim 14, which is shown in Fig. 8b.
  • the flange 11 could be attached to the region around ;he aperture 9 underneath the edge of the container. rhis is shown for an externally threaded sleeve in Figure
  • the combination of the cap 7 and the sleeve 6 can be applied by passing from the inside to the outside of the container 4 through the aperture 9 i.e. in the direction of the arrow A.
  • the pressure inside the cap 7 tends to urge the flange 11 against the container 4 rather than away from it.
  • the first means of protection shown in Figure 10a, comprises a tear-out diaphragm 16 integral with the sleeve 6 and having a line of weakness 17 (shown in dotted line).
  • the diaphragm 16 may be removed by pulling the projection 18 outwardly.
  • the projection also helps to prevent excessive outward deformation of the diaphragm 16 as it engages the underside 19 of the cap 7.
  • a line of weakness 21 is provided in a diaphragm made out of the same material as the container 4, that is to say made integral with the container 4.
  • a typical such container 4 is a carton. As shown in Figure 11, the closure is formed in a non- seamed portion 21 of the carton. The material of the container 4 comes off a roll at stage A, as shown in Figure 12, and apertures 9 are punched at'predetermined positions along the sheet according to the lengths required of the finished containers. A combined cap and sleeve is inserted through the aperture from the side of the sheet onto which the sleeve is to be fixed and then the sleeve is fixed by such as heat sealing to the container in stage C.
  • the side and base edges are heat sealed together and the container is filled and cut away from the unrolled sheet in shape D.
  • the sleeve can be applied directly to the exterior of the carton around the aperture or the area in which the aperture is subsequently to be formed.
  • the container and/or sleeve materials are flexible at least in the neck region between the aperture and the adjacent container wall so that the closed aperture portion 22 may be manufactured and sold in a depressed mode and subsequently displaced outwardly of the container upon pressure being exerted on the sides 23 of the container into an upstanding mode whereby the cap 7 may be removed from the upstanding aperture portion 22.
  • the mode of initial depression affords greater storage and transit space.
  • the aperture portion 22 can be formed by a flexible member 24 which includes an outer flange 25 for attachment to the container wall via the edge of a tamper-proofing diaphragm 26 which extends over the aperture and the depressed portion 22.
  • the tamper-proofing diaphragm 26 may include a line of weakness 27 for allowing removal of the diaphragm from the aperture.
  • the depressed portion 22 and tamper-proofing diaphragm 26 may be co-attached by preferably heat sealing or adhesive and then attached by preferably heat sealing to the wall of the main container 4.
  • the tamper-proofing diaphragm 26 only extends over the aperture and the flexible diaphragm 24 is attached directly to the wall of the main container 4.
  • This diaphragm also has a means of weakness, provided for example by a line of weakness 27 and/or a partly sheared portion 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP84301440A 1983-06-21 1984-03-05 Behälterverschluss Withdrawn EP0132904A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8316772 1983-06-21
GB838316772A GB8316772D0 (en) 1983-02-16 1983-06-21 Securing closures to containers

Publications (2)

Publication Number Publication Date
EP0132904A2 true EP0132904A2 (de) 1985-02-13
EP0132904A3 EP0132904A3 (de) 1985-04-03

Family

ID=10544523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84301440A Withdrawn EP0132904A3 (de) 1983-06-21 1984-03-05 Behälterverschluss

Country Status (1)

Country Link
EP (1) EP0132904A3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5577643A (en) * 1994-05-19 1996-11-26 Heinrich Stolz Gmbh & Co. Kg Closure and container
US5601215A (en) * 1994-05-19 1997-02-11 Heinrich Stolz Gmbh & Co. Kg Closure for a container

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189611667A (en) * 1896-05-28 1897-04-10 George Alfred Leighton Improvements in Stoppering Bottles.
US591849A (en) * 1897-10-19 Bottle-cap
US1030293A (en) * 1911-10-05 1912-06-25 Frederic Wm Erickson Outlet-bushing.
GB429233A (en) * 1933-07-17 1935-05-27 Ascog Ltd Improvements in or relating to closures for glass jars or like containers
AT155246B (de) * 1937-02-19 1938-12-10 Ernst Walter Ing Fleissig Schraubenverschluß.
FR1008677A (fr) * 1948-05-11 1952-05-20 Procédé de bouchage de récipients tels que: gobelets, flacons, bouteilles, etc.
US2661128A (en) * 1949-02-18 1953-12-01 Rieke Metal Products Corp Tamper and seal proof flexible pouring spout
US3250428A (en) * 1964-03-09 1966-05-10 Rieke Metal Products Corp Means of attaching a closure to containers
AT298276B (de) * 1969-03-05 1972-04-25 Continental Can Co Behälterverschluß
DE2626183A1 (de) * 1976-06-11 1977-12-22 Schmalbach Lubeca Ges Mbh Behaelter

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US591849A (en) * 1897-10-19 Bottle-cap
GB189611667A (en) * 1896-05-28 1897-04-10 George Alfred Leighton Improvements in Stoppering Bottles.
US1030293A (en) * 1911-10-05 1912-06-25 Frederic Wm Erickson Outlet-bushing.
GB429233A (en) * 1933-07-17 1935-05-27 Ascog Ltd Improvements in or relating to closures for glass jars or like containers
AT155246B (de) * 1937-02-19 1938-12-10 Ernst Walter Ing Fleissig Schraubenverschluß.
FR1008677A (fr) * 1948-05-11 1952-05-20 Procédé de bouchage de récipients tels que: gobelets, flacons, bouteilles, etc.
US2661128A (en) * 1949-02-18 1953-12-01 Rieke Metal Products Corp Tamper and seal proof flexible pouring spout
US3250428A (en) * 1964-03-09 1966-05-10 Rieke Metal Products Corp Means of attaching a closure to containers
AT298276B (de) * 1969-03-05 1972-04-25 Continental Can Co Behälterverschluß
DE2626183A1 (de) * 1976-06-11 1977-12-22 Schmalbach Lubeca Ges Mbh Behaelter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5577643A (en) * 1994-05-19 1996-11-26 Heinrich Stolz Gmbh & Co. Kg Closure and container
US5601215A (en) * 1994-05-19 1997-02-11 Heinrich Stolz Gmbh & Co. Kg Closure for a container

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Publication number Publication date
EP0132904A3 (de) 1985-04-03

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Inventor name: CROFT, BRIAN HUGH

Inventor name: EDWARDS, CYRIL KENNETH